add urdf files.

aligh the function parameter names of qp and rm methods
This commit is contained in:
LiuzhengSJ
2026-06-05 15:25:35 +01:00
parent aefc7bacd5
commit 2ca5033b46
14 changed files with 562 additions and 168 deletions

View File

@ -12,76 +12,18 @@ import time
from math import radians, degrees, pi, cos, sin
import numpy as np
def demo_position_control():
def main():
"""Demonstrate pure position control"""
urdf_path = "/home/zl/Downloads/urdf_rm75/RM75-B.urdf"
# Create controller
robot_mjk = MuJoCoPositionController(urdf_path, smoothness=0.05, enable_viewer=True)
robot_mjk.start()
robot_mjk = MuJoCoPositionController()
print("\n[Test 1] Move joint 1 to 45 degrees")
robot_mjk.send_command([0.785, 0, 0, 0, 0, 0, 0])
robot_mjk.wait_until_reached()
robot_mjk.print_state()
print("\n[Test 4] Return home\n")
robot_mjk.send_command([0, 0, 0, 0, 0, 0, 0])
robot_mjk.wait_until_reached()
robot_mjk.print_state()
#---------------------------------------------------------------------------
joints = [10, 20, -30, -40, 50, 60, 70]
joints_rad = [radians(j) for j in joints] #radians(joints)
# target_position = [0.3, 0.2, 0.4]
# target_rpy = [0.0, 0.0, 3.14*0.25]
target_position = [0.17892041, 0.25274317, 0.83107248]
target_rpy = [0.78576018, 0.67554633, 1.86302226]
target_p = target_position + target_rpy
# target_p_rad = [radians(pos) for pos in target_position] + target_rpy
initial_guess = [0.0, 110.0, 20.0, 40.0, 30.0, 180.0, 20.0] # [0.0, 20, -30, -40, 50, 60, 91] #
initial_guess_rad = [ radians(j) for j in initial_guess ]
tool_name = "scissor"
# ----------- rm75 qp based kine ------------
robot_kine_qp = kine_qp()
print(f'the forward kinematics result: {robot_kine_qp.forward_kinematics(joints_rad , tool=tool_name)}')
time0 = time.time()
for i in range(100):
joint_solution, success, error, ite = robot_kine_qp.inverse_kinematics(
target_p[0:3], target_rpy=target_p[3:6], initial_guess=initial_guess_rad,
max_iter=500, debug=False, tool=tool_name )
time1 = time.time()
print(f'used time by qp is {time1 - time0}')
if success:
print(f'the qp based kinematics result: {joint_solution}, success: {success}, error: {error}, iteration: {ite}\n')
print(f'forward result of the ik solution is {robot_kine_qp.forward_kinematics(joint_solution , tool=tool_name)}\n')
else:
print(f'solution: {joint_solution} success flag {success}, error {error}, iteration: {ite}\n')
# ---------- rm75 official algorithm -----------
robot_kine_rm = kine_rm()
print(f'forward kine pose is {robot_kine_rm.forward_kinematics(q=joints, tool=tool_name)}')
time2 = time.time()
for i in range(100):
ret, q = robot_kine_rm.inverse_kinematics(target_position=target_p[0:3], target_rpy=target_p[3:6],initial_guess=initial_guess, tool=tool_name)
time3 = time.time()
print(f'used time by rm is {time3 - time2}')
print(f'the ik result is ret ={ret}, q = {[radians(q_s) for q_s in q]}')
if ret == 0:
print(f'forward result of ik rm ik solution is {robot_kine_rm.forward_kinematics(q=q, tool=tool_name)} ')
@ -92,110 +34,80 @@ def demo_position_control():
# ub = np.array([150.0, 110.0, 170.0, 130, 175.0, 125.0, 179.0])
# lb = np.array([-150.0, -30.0, -170.0, -130, -175.0, -125.0, -179.0])
ub = np.array([179.0, 129.0, 179.0, 134, 179.0, 127.0, 359.0])
ub = np.array([179.0, 129.0, 179.0, 134, 179.0, 127.0, 359.0])/180*pi
lb = -ub
# lower_limits = np.array([ -3.14159, -2.2689, -3.14159, -2.3562, -3.14159, -2.234, -3.14159 ])
# upper_limits = np.array([ 3.14159, 2.2689, 3.14159, 2.3562, 3.14159, 2.234, 3.14159 ])
robot_kine_qp.cfg_j_limit(min_j=lb, max_j=ub, rad_flag=True)
for i in range(7):
robot_kine_qp.model.lowerPositionLimit[i] = lb[i]/180*pi
robot_kine_qp.model.upperPositionLimit[i] = ub[i]/180*pi
robot_kine_rm.cfg_j_limit(min_j=lb, max_j=ub, rad_flag=True)
robot_kine_rm.robot_kine_rm.rm_algo_set_joint_max_limit(ub)
robot_kine_rm.robot_kine_rm.rm_algo_set_joint_min_limit(lb)
result = np.array([[0,0],[0,0]], dtype=np.int32) # qp_fk, qp_ik, rm_fk, rm_ik
result = np.array([[0,0],[0,0]], dtype=np.int32) # to collect ik result qp_fk, qp_ik, rm_fk, rm_ik
solve_sum = 0
for i in range(10):
print(f'\n-------------- in i = {i} ----------------')
joint_rand = np.random.uniform(ub/180*pi, lb/180*pi)
joint_rand = np.random.uniform(ub, lb)
print(f'the predefined joints are {joint_rand}')
# -------------- fk ------------------
fk_qp1 = robot_kine_qp.forward_kinematics(joint_rand.tolist(), tool=tool_name)
fk_qp_p1 = np.concatenate([fk_qp1['position'], fk_qp1['rpy']], axis=0)
fk_qp_p1 = robot_kine_qp.forward_kinematics(joint_angles=joint_rand.tolist(), tool=tool_name)
fk_rm_p1 = robot_kine_rm.forward_kinematics(q=(joint_rand*180/pi).tolist(), tool=tool_name)
fk_rm_p1 = robot_kine_rm.forward_kinematics(joint_angles=joint_rand.tolist(), tool=tool_name)
d_fk_p1 = np.array(fk_rm_p1) - np.array(fk_qp_p1)
for j in [3,4,5]:
while d_fk_p1[j] > pi:
d_fk_p1[j] -= 2*pi
while d_fk_p1[j] < -pi:
d_fk_p1[j] += -2*pi
d_fk = np.linalg.norm(d_fk_p1)
d_fk = cal_pose_deviation(pose1=fk_rm_p1, pose2=fk_qp_p1)
print(f'fk_qp_p1 = {fk_qp_p1}, fk_rm_p1 = {fk_rm_p1}, d_fk = {d_fk}\n')
# ----------- ik ----------------
t_p = fk_rm_p1
joint_rand_init = np.random.uniform(ub/180*pi, lb/180*pi)
joint_rand_init = np.random.uniform(ub, lb)
print(f'the guess is {joint_rand_init}')
joint_solution, success, error, ite = robot_kine_qp.inverse_kinematics(
t_p[0:3], target_rpy=t_p[3:6], initial_guess=joint_rand_init,
max_iter=500, debug=False, tool=tool_name)
print(f'joint_solution = {joint_solution}, success = {success}, error = {error}, ite = {ite}')
if success:
fk_qp2 = robot_kine_qp.forward_kinematics(joint_solution, tool=tool_name)
fk_qp_p2 = np.concatenate([fk_qp2['position'], fk_qp2['rpy']], axis=0)
d_p_ik = np.linalg.norm( np.array(fk_qp_p2) - np.array(t_p) )
ret_qp, q = robot_kine_qp.inverse_kinematics( target_position=t_p[0:3], target_rpy=t_p[3:6], initial_guess=joint_rand_init, tool=tool_name)
if ret_qp == 0:
fk_qp_p2 = robot_kine_qp.forward_kinematics(q, tool=tool_name)
d_p_ik = cal_pose_deviation(pose1=t_p, pose2=fk_qp_p2)
print(f'-- success, in the qp ik, fk_qp_p2 = {fk_qp_p2}, d_p_ik = {d_p_ik}')
if d_p_ik < 0.01:
result[0][1] += 1
robot_mjk.send_command(joint_solution)
robot_mjk.send_command(q)
robot_mjk.wait_until_reached()
robot_mjk.print_state()
else:
fk_qp2 = robot_kine_qp.forward_kinematics(joint_solution, tool=tool_name)
fk_qp_p2 = np.concatenate([fk_qp2['position'], fk_qp2['rpy']], axis=0)
d_p_ik = np.linalg.norm(np.array(fk_qp_p2) - np.array(t_p))
print(f'-- fail, in the qp ik, fk_qp_p2 = {fk_qp_p2}, d_p_ik = {d_p_ik}')
fk_qp_p2 = robot_kine_qp.forward_kinematics(q, tool=tool_name)
d_p_ik = cal_pose_deviation(pose1=t_p, pose2=fk_qp_p2)
print(f'-- fail, in the qp ik, fk_qp_p2 = {fk_qp_p2}, d_p_ik = {d_p_ik},q = {q}, ret_qp = {ret_qp}')
ret, q = robot_kine_rm.inverse_kinematics(target_position=t_p[0:3], target_rpy=t_p[3:6],
initial_guess=(joint_rand_init*180/pi).tolist(), tool=tool_name)
if ret == 0:
fk_rm_p2 = robot_kine_rm.forward_kinematics(q=q, tool=tool_name)
d_p_ik = np.linalg.norm(np.array(fk_rm_p2) - np.array(t_p) )
print(f'== sucess, in the rm ik, fk_rm_p2 = {fk_rm_p2}, d_p_ik = {d_p_ik}')
ret_rm, q = robot_kine_rm.inverse_kinematics(target_position=t_p[0:3], target_rpy=t_p[3:6], initial_guess=joint_rand_init, tool=tool_name)
if ret_rm == 0:
fk_rm_p2 = robot_kine_rm.forward_kinematics(joint_angles=q, tool=tool_name)
d_p_ik = cal_pose_deviation(pose1=t_p, pose2=fk_rm_p2)
print(f'== sucess, in the rm ik, fk_rm_p2 = {fk_rm_p2}, d_p_ik = {d_p_ik} ,q = {q}, ret_qp = {ret_qp}')
if d_p_ik < 0.01:
result[1][1] += 1
else:
print(f'== fail in the rm ik, ret = {ret}y, q = {q}')
print(f'== fail in the rm ik, ret = {ret_rm}, q = {q}')
if success or ret == 0:
if ret_qp == 0 or ret_rm == 0:
solve_sum += 1
print(f'result is {result}')
print(f'solve_sum is {solve_sum}')
print(f'\nDone\n')
# try:
# while robot_mjk.viewer and robot_mjk.viewer.is_running():
# time.sleep(0.1)
# except KeyboardInterrupt:
# pass
robot_mjk.stop()
def main():
demo_position_control()
def cal_pose_deviation(pose1, pose2):
d_fk_p1 = np.array(pose1) - np.array(pose2)
for j in [3, 4, 5]:
while d_fk_p1[j] > pi:
d_fk_p1[j] -= 2 * pi
while d_fk_p1[j] < -pi:
d_fk_p1[j] += 2 * pi
d_fk = np.linalg.norm(d_fk_p1)
return d_fk

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@ -12,7 +12,7 @@ import time
class KinematicsSolver():
def __init__(self,urdf_path="/home/zl/Downloads/urdf_rm75/RM75-B.urdf", mesh_dir="/home/zl/Downloads/meshes"):
def __init__(self,urdf_path="urdf_rm75/RM75-B.urdf", mesh_dir="urdf_rm75"):
"""
for realman 75b
Initialize robotic arm kinematics using Pinocchio (ROS2 version).
@ -90,18 +90,7 @@ class KinematicsSolver():
self.data = self.model.createData()
# Joint limits (radians) - expanded for better reachability
self.lower_limits = np.array([
-3.14159, -2.2689, -3.14159, -2.3562, -3.14159, -2.234, -6.14159
])
self.upper_limits = np.array([
3.14159, 2.2689, 3.14159, 2.3562, 3.14159, 2.234, 6.14159
])
# Set joint limits in the model
for i in range(7):
self.model.lowerPositionLimit[i] = self.lower_limits[i]
self.model.upperPositionLimit[i] = self.upper_limits[i]
self.cfg_j_limit()
# ---------- for reused qp_solver ------------------
self.nv = 7
@ -129,6 +118,19 @@ class KinematicsSolver():
self.W = np.diag([1, 1, 1, 0.4, 0.4, 0.4])
def cfg_j_limit(self, min_j=None, max_j=None, rad_flag = True):
if min_j is None:
min_j = [-3.14159, -2.2689, -3.14159, -2.3562, -3.14159, -2.234, -6.14159]
if max_j is None:
max_j = [3.14159, 2.2689, 3.14159, 2.3562, 3.14159, 2.234, 6.14159]
if rad_flag:
for i in range(7):
self.model.lowerPositionLimit[i] = min_j[i]
self.model.upperPositionLimit[i] = max_j[i]
else:
for i in range(7):
self.model.lowerPositionLimit[i] = min_j[i] / 180 * pi
self.model.upperPositionLimit[i] = max_j[i] / 180 * pi
def forward_kinematics(self, joint_angles, tool="ee"):
"""
@ -167,15 +169,16 @@ class KinematicsSolver():
rpy = pin.rpy.matrixToRpy(rotation)
# Compute quaternion
quat = pin.Quaternion(rotation)
return {
'position': position,
# 'rotation': rotation,
'rpy': rpy,
'quaternion': [quat.x, quat.y, quat.z, quat.w],
# 'transform': frame_transform
}
# quat = pin.Quaternion(rotation)
pose = np.concatenate([position, rpy], axis=0)
return pose
# return {
# 'position': position,
# # 'rotation': rotation,
# 'rpy': rpy,
# 'quaternion': [quat.x, quat.y, quat.z, quat.w],
# # 'transform': frame_transform
# }
def inverse_kinematics(self, target_position, target_rpy=None,
target_quat=None, initial_guess=None,
@ -360,9 +363,11 @@ class KinematicsSolver():
iter_count += 1
if best_solution is not None:
return best_solution, True, best_error, iter_count
# return best_solution, True, best_error, iter_count
return 0, best_solution
else:
return q[:7].copy(), False, error_norm, iter_count
# return q[:7].copy(), False, error_norm, iter_count
return -1, q[:7].copy()
# def invese_kinematics_velocity(self, target_position, target_rpy=None,
# target_quat=None, initial_guess=None, tool="ee"):

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@ -12,6 +12,8 @@ class rm75_kine_api():
# Initialize the robotic arm model and sensor type in the algorithm
self.robot_kine_rm = Algo(arm_model, force_type)
self.cfg_j_limit()
self.tool_frames = {
'ee': rm_frame_t(frame_name="ee", pose=(0.0, 0.0, 0.0, 0.0, 0, 0.0), payload=1, x=0, y=0, z=0),
'scissor': rm_frame_t(frame_name="scissor", pose=(0.0, 0.0, 0.144, 0.0, 0, 0.0), payload=1, x=0, y=0, z=72),
@ -24,15 +26,18 @@ class rm75_kine_api():
self.tool_name = "ee"
self.work_name = "work"
def cfg_limit(self):
joint_max_limit = np.array([
3.14159, 2.2689, 3.14159, 2.3562, 3.14159, 2.234, 3.14159
]) * 180 / math.pi
self.robot_kine_rm.rm_algo_set_joint_max_limit(joint_max_limit.tolist())
joint_min_limit = np.array([
-3.14159, -2.2689, -3.14159, -2.3562, -3.14159, -2.234, -3.14159
]) * 180 / math.pi
self.robot_kine_rm.rm_algo_set_joint_min_limit(joint_min_limit.tolist())
def cfg_j_limit(self, min_j=None, max_j=None, rad_flag = True):
if max_j is None:
max_j = np.array([3.14159, 2.2689, 3.14159, 2.3562, 3.14159, 2.234, 3.14159])
if min_j is None:
min_j = np.array([ -3.14159, -2.2689, -3.14159, -2.3562, -3.14159, -2.234, -3.14159 ])
if rad_flag:
self.robot_kine_rm.rm_algo_set_joint_max_limit((max_j * 180 / math.pi).tolist())
self.robot_kine_rm.rm_algo_set_joint_min_limit((min_j * 180 / math.pi).tolist())
else:
self.robot_kine_rm.rm_algo_set_joint_max_limit(max_j.tolist())
self.robot_kine_rm.rm_algo_set_joint_min_limit(min_j.tolist())
def cfg_work_frame(self , frame_name):
self.robot_kine_rm.rm_algo_set_workframe(self.work_frames[frame_name])
@ -46,10 +51,11 @@ class rm75_kine_api():
def get_tool_frame(self):
return self.robot_kine_rm.rm_algo_get_curr_toolframe()
def forward_kinematics(self, q, flag = 1 , tool="ee", work="work"):
def forward_kinematics(self, joint_angles, flag = 1 , tool="ee", work="work"):
'''
:param q: list of joint values, in degree
flag: 0: return list [x,y,z,w,x,y,z]. 1: return list [x,y,z,rx,ry,rz]
:param joint_angles: list of joint values, in rad
:param flag: 0: return list [x,y,z,w,x,y,z]. 1: return list [x,y,z,rx,ry,rz]
:param return: [x,y,z,rx,ry,rz], m & rad
'''
if tool != self.tool_name:
self.tool_name = tool
@ -58,9 +64,19 @@ class rm75_kine_api():
self.work_name = work
self.cfg_work_frame(work)
return self.robot_kine_rm.rm_algo_forward_kinematics(joint=q, flag=flag)
return self.robot_kine_rm.rm_algo_forward_kinematics(joint=[q_s*180/math.pi for q_s in joint_angles] , flag=flag)
def inverse_kinematics(self, target_position, target_rpy=None, initial_guess=None, tool="ee", work="work"):
'''
:param target_position: list of position values, m
:param target_rpy: list of rpy values, rad
:param initial_guess: initial guess of angles, rad
:param tool: tool name, refer to self.tool_frames
:param work: work name, refer to self.work_frames
return ret: state of ik calculation, 0:success, -2: out of workspace
[q_]: the ik calculated angles for joints, rad
'''
if tool != self.tool_name:
self.tool_name = tool
self.cfg_tool_frame(tool)
@ -71,11 +87,11 @@ class rm75_kine_api():
target = target_position + target_rpy
if initial_guess is not None:
q_ref = initial_guess
q_ref = [ 180/math.pi * ig for ig in initial_guess ]
else:
q_ref = [0.0, 110.0, 20.0, 40.0, 30.0, 180.0, 20.0]
ret, phi = self.robot_kine_rm.rm_algo_calculate_arm_angle_from_config_rm75(q_ref)
params = rm_inverse_kinematics_params_t(q_ref,
target, 1)
ret, q_out = self.robot_kine_rm.rm_algo_inverse_kinematics_rm75_for_arm_angle(params, phi)
return ret, q_out
return ret, [ q/180*math.pi for q in q_out]

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@ -18,7 +18,7 @@ class MuJoCoPositionController:
No velocity commands, no forces - completely stable
"""
def __init__(self, urdf_path, smoothness=0.2, enable_viewer=True):
def __init__(self, urdf_path="./urdf_rm75/RM75-B.urdf", smoothness=0.05, enable_viewer=True):
"""
Args:
urdf_path: Path to URDF file
@ -73,8 +73,7 @@ class MuJoCoPositionController:
print("Viewer launched")
except Exception as e:
print(f"Viewer warning: {e}")
print("Robot controller ready - Pure Position Mode")
self.start()
def start(self):
"""Start the simulation thread"""

View File

@ -0,0 +1,9 @@
Link Name,Center of Mass X,Center of Mass Y,Center of Mass Z,Center of Mass Roll,Center of Mass Pitch,Center of Mass Yaw,Mass,Moment Ixx,Moment Ixy,Moment Ixz,Moment Iyy,Moment Iyz,Moment Izz,Visual X,Visual Y,Visual Z,Visual Roll,Visual Pitch,Visual Yaw,Mesh Filename,Color Red,Color Green,Color Blue,Color Alpha,Collision X,Collision Y,Collision Z,Collision Roll,Collision Pitch,Collision Yaw,Collision Mesh Filename,Material Name,SW Components,Coordinate System,Axis Name,Joint Name,Joint Type,Joint Origin X,Joint Origin Y,Joint Origin Z,Joint Origin Roll,Joint Origin Pitch,Joint Origin Yaw,Parent,Joint Axis X,Joint Axis Y,Joint Axis Z,Limit Effort,Limit Velocity,Limit Lower,Limit Upper,Calibration rising,Calibration falling,Dynamics Damping,Dynamics Friction,Safety Soft Upper,Safety Soft Lower,Safety K Position,Safety K Velocity
base_link,0.00049987,5.2709E-05,0.060019,0,0,0,0.83887,0.0017232,-3.1058E-06,-3.7924E-05,0.0017051,1.3691E-06,0.00090158,0,0,0,0,0,0,package://RM75-B/meshes/base_link.STL,1,1,1,1,0,0,0,0,0,0,package://RM75-B/meshes/base_link.STL,,连杆1-1,base_link,,,,0,0,0,0,0,0,,0,0,0,,,,,,,,,,,,
link_1,1.4803E-07,-0.021108,-0.025186,0,0,0,0.59354,0.0012661,6.0354E-09,-6.3788E-09,0.0011817,-0.00021121,0.00056132,0,0,0,0,0,0,package://RM75-B/meshes/link_1.STL,1,1,1,1,0,0,0,0,0,0,package://RM75-B/meshes/link_1.STL,,连杆2-1,link_1,joint_1,joint_1,revolute,0,0,0.2405,0,0,0,base_link,0,0,1,60,3.14,-3.106,3.106,,,,,,,,
link_2,4.2145E-07,-0.076129,0.011078,0,0,0,0.43285,0.0012584,1.4694E-09,-5.7413E-09,0.00031747,0.000279,0.0012225,0,0,0,0,0,0,package://RM75-B/meshes/link_2.STL,1,1,1,1,0,0,0,0,0,0,package://RM75-B/meshes/link_2.STL,,连杆3-1,link_2,joint_2,joint_2,revolute,0,0,0,-1.5708,0,0,link_1,0,0,1,60,3.14,-2.2689,2.2689,,,,,,,,
link_3,-3.2093E-07,-0.023545,-0.027347,0,0,0,0.43132,0.00079433,1.02E-09,1.3908E-08,0.00073037,-0.00014262,0.00031507,0,0,0,0,0,0,package://RM75-B/meshes/link_3.STL,1,1,1,1,0,0,0,0,0,0,package://RM75-B/meshes/link_3.STL,,连杆4-1,link_3,joint_3,joint_3,revolute,0,-0.256,0,1.5708,0,0,link_2,0,0,1,30,3.14,-3.106,3.106,,,,,,,,
link_4,5.0722E-06,-0.059593,0.010569,0,0,0,0.28963,0.00063737,7.0681E-08,3.8708E-08,0.00015648,0.00014461,0.00061418,0,0,0,0,0,0,package://RM75-B/meshes/link_4.STL,1,1,1,1,0,0,0,0,0,0,package://RM75-B/meshes/link_4.STL,,连杆5-1,link_4,joint_4,joint_4,revolute,0,0,0,-1.5708,0,0,link_3,0,0,1,30,3.14,-2.356,2.356,,,,,,,,
link_5,2.7551E-07,-0.018042,-0.02154,0,0,0,0.23942,0.00028595,1.9823E-09,-1.192E-09,0.00026273,-4.424E-05,0.0001199,0,0,0,0,0,0,package://RM75-B/meshes/link_5.STL,1,1,1,1,0,0,0,0,0,0,package://RM75-B/meshes/link_5.STL,,连杆6-1,link_5,joint_5,joint_5,revolute,0,-0.21,0,1.5708,0,0,link_4,0,0,1,10,3.14,-3.106,3.106,,,,,,,,
link_6,3.4947E-06,-0.059381,0.0073681,0,0,0,0.2188,0.00035054,3.4456E-08,1.7975E-08,0.00010493,7.8243E-05,0.00033448,0,0,0,0,0,0,package://RM75-B/meshes/link_6.STL,1,1,1,1,0,0,0,0,0,0,package://RM75-B/meshes/link_6.STL,,连杆7-1,link_6,joint_6,joint_6,revolute,0,0,0,-1.5708,0,0,link_5,0,0,1,10,3.14,-2.234,2.234,,,,,,,,
link_7,0.00081557,1.3323E-05,-0.012705,0,0,0,0.065037,2.1144E-05,2.2774E-08,2.5471E-08,1.8109E-05,1.019E-08,3.19E-05,0,0,0,0,0,0,package://RM75-B/meshes/link_7.STL,1,1,1,1,0,0,0,0,0,0,package://RM75-B/meshes/link_7.STL,,末端法兰件 方案一-1,link_7,joint_7,joint_7,revolute,0,-0.144,0,1.5708,0,0,link_6,0,0,1,10,3.14,-6.28,6.28,,,,,,,,
1 Link Name Center of Mass X Center of Mass Y Center of Mass Z Center of Mass Roll Center of Mass Pitch Center of Mass Yaw Mass Moment Ixx Moment Ixy Moment Ixz Moment Iyy Moment Iyz Moment Izz Visual X Visual Y Visual Z Visual Roll Visual Pitch Visual Yaw Mesh Filename Color Red Color Green Color Blue Color Alpha Collision X Collision Y Collision Z Collision Roll Collision Pitch Collision Yaw Collision Mesh Filename Material Name SW Components Coordinate System Axis Name Joint Name Joint Type Joint Origin X Joint Origin Y Joint Origin Z Joint Origin Roll Joint Origin Pitch Joint Origin Yaw Parent Joint Axis X Joint Axis Y Joint Axis Z Limit Effort Limit Velocity Limit Lower Limit Upper Calibration rising Calibration falling Dynamics Damping Dynamics Friction Safety Soft Upper Safety Soft Lower Safety K Position Safety K Velocity
2 base_link 0.00049987 5.2709E-05 0.060019 0 0 0 0.83887 0.0017232 -3.1058E-06 -3.7924E-05 0.0017051 1.3691E-06 0.00090158 0 0 0 0 0 0 package://RM75-B/meshes/base_link.STL 1 1 1 1 0 0 0 0 0 0 package://RM75-B/meshes/base_link.STL 连杆1-1 base_link 0 0 0 0 0 0 0 0 0
3 link_1 1.4803E-07 -0.021108 -0.025186 0 0 0 0.59354 0.0012661 6.0354E-09 -6.3788E-09 0.0011817 -0.00021121 0.00056132 0 0 0 0 0 0 package://RM75-B/meshes/link_1.STL 1 1 1 1 0 0 0 0 0 0 package://RM75-B/meshes/link_1.STL 连杆2-1 link_1 joint_1 joint_1 revolute 0 0 0.2405 0 0 0 base_link 0 0 1 60 3.14 -3.106 3.106
4 link_2 4.2145E-07 -0.076129 0.011078 0 0 0 0.43285 0.0012584 1.4694E-09 -5.7413E-09 0.00031747 0.000279 0.0012225 0 0 0 0 0 0 package://RM75-B/meshes/link_2.STL 1 1 1 1 0 0 0 0 0 0 package://RM75-B/meshes/link_2.STL 连杆3-1 link_2 joint_2 joint_2 revolute 0 0 0 -1.5708 0 0 link_1 0 0 1 60 3.14 -2.2689 2.2689
5 link_3 -3.2093E-07 -0.023545 -0.027347 0 0 0 0.43132 0.00079433 1.02E-09 1.3908E-08 0.00073037 -0.00014262 0.00031507 0 0 0 0 0 0 package://RM75-B/meshes/link_3.STL 1 1 1 1 0 0 0 0 0 0 package://RM75-B/meshes/link_3.STL 连杆4-1 link_3 joint_3 joint_3 revolute 0 -0.256 0 1.5708 0 0 link_2 0 0 1 30 3.14 -3.106 3.106
6 link_4 5.0722E-06 -0.059593 0.010569 0 0 0 0.28963 0.00063737 7.0681E-08 3.8708E-08 0.00015648 0.00014461 0.00061418 0 0 0 0 0 0 package://RM75-B/meshes/link_4.STL 1 1 1 1 0 0 0 0 0 0 package://RM75-B/meshes/link_4.STL 连杆5-1 link_4 joint_4 joint_4 revolute 0 0 0 -1.5708 0 0 link_3 0 0 1 30 3.14 -2.356 2.356
7 link_5 2.7551E-07 -0.018042 -0.02154 0 0 0 0.23942 0.00028595 1.9823E-09 -1.192E-09 0.00026273 -4.424E-05 0.0001199 0 0 0 0 0 0 package://RM75-B/meshes/link_5.STL 1 1 1 1 0 0 0 0 0 0 package://RM75-B/meshes/link_5.STL 连杆6-1 link_5 joint_5 joint_5 revolute 0 -0.21 0 1.5708 0 0 link_4 0 0 1 10 3.14 -3.106 3.106
8 link_6 3.4947E-06 -0.059381 0.0073681 0 0 0 0.2188 0.00035054 3.4456E-08 1.7975E-08 0.00010493 7.8243E-05 0.00033448 0 0 0 0 0 0 package://RM75-B/meshes/link_6.STL 1 1 1 1 0 0 0 0 0 0 package://RM75-B/meshes/link_6.STL 连杆7-1 link_6 joint_6 joint_6 revolute 0 0 0 -1.5708 0 0 link_5 0 0 1 10 3.14 -2.234 2.234
9 link_7 0.00081557 1.3323E-05 -0.012705 0 0 0 0.065037 2.1144E-05 2.2774E-08 2.5471E-08 1.8109E-05 1.019E-08 3.19E-05 0 0 0 0 0 0 package://RM75-B/meshes/link_7.STL 1 1 1 1 0 0 0 0 0 0 package://RM75-B/meshes/link_7.STL 末端法兰件 方案一-1 link_7 joint_7 joint_7 revolute 0 -0.144 0 1.5708 0 0 link_6 0 0 1 10 3.14 -6.28 6.28

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<!-- This URDF was automatically created by SolidWorks to URDF Exporter! Originally created by Stephen Brawner (brawner@gmail.com)
Commit Version: 1.6.0-1-g15f4949 Build Version: 1.6.7594.29634
For more information, please see http://wiki.ros.org/sw_urdf_exporter -->
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