Linear driving module detection tool

Abstract

The utility model relates to the technical field of medical instruments, in particular to a linear driving module detection tool which comprises a fixing frame used for installing a lead screw and a simulation arm capable of being connected with a sliding block on the lead screw. When a motor matched with the lead screw through a synchronous belt works, the lead screw can drive the sliding block to drive the simulation arm to do linear motion through autorotation. The fixing frame can simulate a horizontal joint base body, the simulation arm can simulate a load, through the combined action of the fixing frame and the simulation arm, the real use condition of the linear driving module on the surgical robot can be simulated, then the fatigue testing environment of the motor is similar to the environment actually applied to the surgical robot, and the fatigue testing efficiency is improved. The fatigue test result of the motor is more reliable and has higher reference value; especially, in the fatigue test process of the motor, the fatigue test can be carried out on the synchronous belt and the lead screw at the same time, namely, the fatigue test can be carried out on the whole linear driving module.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a linear drive module detection tool. Background Art

[0002] Minimally invasive surgery refers to a surgical method that uses modern medical instruments such as laparoscopes and thoracoscopes and related equipment to perform surgery inside the human body cavity. Compared with traditional surgical methods, minimally invasive surgery has the advantages of less trauma, less pain, and faster recovery. However, due to the limitation of the size of the incision, the difficulty of minimally invasive instruments in minimally invasive surgery is greatly increased, and the fatigue and trembling of doctors during long operations will be magnified, which has become a key factor restricting the development of minimally invasive surgical technology. With the development of robotics technology, a new technology in the field of minimally invasive medicine that can overcome shortcomings and inherit advantages has emerged - minimally invasive surgical robot technology.

[0003] A common minimally invasive surgical robot consists of a doctor's console, a patient surgical platform and a display device. The surgeon operates an input device on the doctor's console and transmits the input to the patient surgical platform connected to the remotely operated surgical instrument.

[0004] A surgical robot usually includes several retractable robotic arms, which generally use linear drive modules. The linear drive modules generally include synchronous belt motors, etc. The surgical robot has certain requirements on the service life and performance of the synchronous belt motors. A fatigue test of the synchronous belt motors is required before selection. Currently, the synchronous belt motors are directly turned on for fatigue testing. However, this test method cannot simulate the actual use of the surgical robot, resulting in large errors in the fatigue test of the synchronous belt motors. Utility Model Content

[0005] In view of the above problems existing in the prior art, the utility model provides a linear drive module detection tooling.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] A linear drive module detection tooling comprises a fixing frame for mounting a lead screw and a simulation arm capable of being connected to a sliding block on the lead screw;

[0008] When the motor matched with the lead screw through the synchronous belt is working, the lead screw can drive the sliding block to drive the simulation arm to perform linear motion through self-rotation.

[0009] Through the setting of the above-mentioned fixed frame and simulation arm, the horizontal joint base and load can be simulated, and the actual use of the linear drive module on the surgical robot can be better simulated, so that the fatigue test environment of the motor is similar to the environment actually used in the surgical robot, making the fatigue test results of the motor more reliable and more valuable for reference.

[0010] Preferably, the fixing frame is provided with a track parallel to the axial direction of the screw rod; the simulation arm is provided with a connecting piece;

[0011] When the simulation arm is mounted on the sliding block, the connecting member can maintain a rolling snap-fit ​​engagement with the track.

[0012] Through the setting of the above-mentioned track and connecting parts, the actual application situation on the surgical robot can be better simulated, the stability of the overall structure can be improved, and the results of the fatigue test can be more reliable; at the same time, there is rolling friction between the track and the connecting parts, which can better simulate the application scenario on the surgical robot, making the fatigue test more realistic.

[0013] Preferably, the track comprises a slot body, and the connecting member comprises a rotatable cam;

[0014] When the simulation arm is mounted on the sliding block, part of the cam extends into the slot body.

[0015] Through the setting of the groove body and the cam, the rolling snap-fitting between the connecting part and the track can be better realized, and the side wall of the groove body can realize auxiliary guidance of the movement of the simulation arm by limiting the cam, and the groove body can support the cam to a certain extent, thereby better improving the stability of the overall mechanism and making the fatigue test process closer to the actual application situation on the surgical robot.

[0016] Preferably, the track includes a support plate; the connecting member includes a rotatable roller;

[0017] When the simulation arm is installed on the sliding block, the roller is clamped on the side of the support plate.

[0018] By setting the support plate and the roller, the rolling snap-fitting between the connecting piece and the track can be better realized, and the support plate can realize auxiliary guidance of the movement of the simulation arm by limiting the first connecting plate and the second connecting plate, and the support plate can support the first connecting plate, the second connecting plate and the roller to a certain extent, thereby better improving the stability of the overall mechanism and making the fatigue test process closer to the actual application situation on the surgical robot.

[0019] Preferably, a first retaining ring and a second retaining ring are respectively provided at both ends of the roller in the axial direction;

[0020] When the simulation arm is installed on the sliding block, part of the support plate extends into between the first retaining ring and the second retaining ring to achieve the snap-fitting between the roller and the support plate.

[0021] By setting the first baffle ring and the second baffle ring, the support plate will not be in direct contact with the first connecting plate and the second connecting plate, thereby avoiding sliding friction between the support plate and the first connecting plate and the second connecting plate. When the simulation arm moves, the roller, the first baffle ring and the second baffle ring all move relative to the support plate in a rolling friction manner, which can better improve the operating efficiency of the simulation arm, better fit the actual usage scenario, and make the fatigue test results more reliable.

[0022] Preferably, a photoelectric sensor which can be triggered to control the direction of rotation of the motor is provided at at least one end of the lead screw in the axial direction and / or at the simulation arm.

[0023] By setting up the photoelectric sensor, the detection tooling can better realize automatic fatigue testing of the motor and improve the safety of the detection process.

[0024] Preferably, the fixing frame comprises a base and a mounting plate arranged at an angle, and the screw rod is rotatably mounted on the mounting plate.

[0025] Through the above structure, when the simulation arm is connected to the screw rod through the sliding block, the simulation arm can be in a suspended state, which can better simulate the suspended state of the mechanical arm of the surgical robot, making the working state of the motor more realistic, thereby improving the reliability of the results of fatigue testing on the motor.

[0026] Preferably, reinforcing ribs are provided between the base and the mounting plate.

[0027] By providing reinforcing ribs between the base and the mounting plate, the overall structural strength of the fixing frame can be improved, thereby providing stable support for the linear drive module and improving the safety of the entire fatigue testing process.

[0028] Preferably, the simulation arm is provided with a detachable weight-bearing member.

[0029] By simulating the setting of the weight-bearing parts on the arm and replacing the weight-bearing parts of different weights, the robotic arms of surgical robots of different weights can be better simulated, so that different fatigue test environments can be switched as needed, achieving an effect of ease of use.

[0030] Preferably, the screw rod is rotatably mounted on a bracket, and the bracket is detachably mounted on the fixing frame.

[0031] By setting the bracket, the screw rod can be preferably installed on the mounting plate, so that the screw rod can rotate on the mounting plate.

[0032] The utility model has at least the following beneficial effects:

[0033] 1. The fixed frame in the present application can simulate the horizontal joint base, and the simulation arm can simulate the load. Through the joint action of the fixed frame and the simulation arm, the actual use of the linear drive module on the surgical robot can be better simulated, thereby making the fatigue test environment of the motor similar to the actual application environment of the surgical robot, making the fatigue test results of the motor more reliable and more valuable for reference.

[0034] 2. Since the present application also uses a synchronous belt and a lead screw when performing fatigue testing on the motor, the working state of the motor during fatigue testing is basically the same as the actual working state, making the results of fatigue testing on the motor more reliable. In particular, during the fatigue testing of the motor, fatigue testing of the synchronous belt and the lead screw can also be performed at the same time, that is, fatigue testing of the entire linear drive module can be performed, which makes the results of fatigue testing more reliable on the one hand, and also achieves a more comprehensive test of the linear drive module on the other hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram showing the installation of a linear drive module on a detection tooling in some embodiments of the present application is shown;

[0036] Figure 2 Shows Figure 1 A partial enlarged view of the middle A;

[0037] Figure 3 A schematic diagram of a linear drive module in some embodiments of the present application is shown;

[0038] Figure 4 A schematic diagram showing a fixing frame in which the track is a support plate in some embodiments of the present application;

[0039] Figure 5 A schematic diagram showing a simulated arm and a weight-bearing member whose connecting member is a roller in some embodiments of the present application;

[0040] Figure 6 Shows Figure 5 A partial enlarged view of point B in the middle;

[0041] Figure 7 A partial schematic diagram is shown in which the track is a groove body and the connecting member is a cam in some embodiments of the present application.

[0042] The parts indicated by the numbers in the accompanying drawings are as follows:

[0043] 100, linear drive module; 110, bracket; 111, second positioning threaded hole; 120, screw rod; 121, sliding block; 121a, first connecting threaded hole; 130, synchronous belt; 140, motor; 200, fixing bracket; 201, base; 202, mounting plate; 202a, first positioning threaded hole; 203, reinforcing rib; 211, trough body; 212, support plate; 300, simulation arm; 301, load-bearing part; 302, second connecting threaded hole; 311, cam; 312, first connecting plate; 313, second connecting plate; 314, roller; 314a, first retaining ring; 314b, second retaining ring; 400, photoelectric sensor. DETAILED DESCRIPTION

[0044] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to explain the utility model but not to limit it.

[0045] Common surgical robots usually include several retractable mechanical arms, which generally use a linear drive module 100. The linear drive module 100 generally includes a screw 120, a synchronous belt 130 and a motor 140. The screw 120 and the motor 140 are driven by the synchronous belt 130. A sliding block 121 is installed on the screw 120. The sliding block 121 is used to connect the mechanical arm. When the motor 140 is working, it can drive the screw 120 to rotate, so that the screw 120 can drive the sliding block 121 to drive the mechanical arm to move along the axial direction of the screw 120. Since the surgical robot has certain requirements on the service life and performance of the selected motor 140, the motor 140 needs to be fatigue tested before selection.

[0046] A general fatigue test is to directly turn on the motor 140 , but this fatigue test cannot simulate the actual usage of the surgical robot, so that the result of the fatigue test has a large error and a low reference value.

[0047] Example 1

[0048] like Figure 1As shown, this embodiment provides a linear drive module 100 detection tooling, the detection tooling includes a split-design fixed frame 200 and a simulation arm 300, wherein the screw rod 120 of the linear drive module 100 can be installed on the fixed frame 200, and the simulation arm 300 can be connected to the sliding block 121 sleeved on the screw rod 120. Before the fatigue test, the sliding block 121 is sleeved on the screw rod 120, and the screw rod 120 is connected to the motor 140 through the synchronous belt 130 to form the linear drive module 100; then the screw rod 120 is installed on the fixed frame 200, so that the screw rod 120 can rotate on the fixed frame 200, and then the simulation arm 300 is connected to the sliding block 121 to realize the assembly connection between the linear drive module 100 and the detection tooling. When performing fatigue testing, the motor 140 is turned on so that the motor 140 can drive the screw 120 to rotate through the synchronous belt 130, and the rotation of the screw 120 can drive the sliding block 121 to drive the simulation arm 300 to move linearly in the axial direction of the screw 120, thereby better realizing the fatigue test of the motor 140.

[0049] It should be noted that the fixed frame 200 in this embodiment can simulate the horizontal joint base, and the simulation arm 300 can simulate the load. Through the joint action of the fixed frame 200 and the simulation arm 300, the actual use of the linear drive module 100 on the surgical robot can be better simulated, thereby making the fatigue test environment of the motor 140 similar to the actual application environment of the surgical robot, making the fatigue test result of the motor 140 more reliable and more valuable for reference.

[0050] Furthermore, since the synchronous belt 130 and the lead screw 120 are also used when the fatigue test is performed on the motor 140, the working state of the motor 140 during the fatigue test is substantially the same as the actual working state, making the result of the fatigue test on the motor 140 more reliable. In particular, during the fatigue test on the motor 140, the fatigue test on the synchronous belt 130 and the lead screw 120 can also be performed at the same time, that is, the fatigue test on the entire linear drive module 100 can be performed, which makes the result of the fatigue test more reliable on the one hand, and also achieves a more comprehensive test on the linear drive module 100 on the other hand.

[0051] In some embodiments, a track that is parallel to the axial direction of the screw rod 120 as a whole is provided on the fixed frame 200, and a connector is provided on the simulation arm 300. Before the fatigue test, after the screw rod 120 is installed on the fixed frame 200, the simulation arm 300 is connected to the sliding block 121. During this process, the connector on the simulation arm 300 can be snap-fitted with the track on the fixed frame 200. Further, when the screw rod 120 rotates to drive the sliding block 121 to drive the simulation arm 300 to move in a straight line, there is rolling friction between the connector and the track, that is, there is a rolling snap-fitting between the connector and the track.

[0052] It is understandable that the track parallel to the axial direction of the screw rod 120 can assist the screw rod 120 in guiding the movement of the simulation arm 300 driven by the sliding block 121, and can simulate the actual application on the surgical robot, avoiding the unstable situation such as shaking between the simulation arm 300 and the fixed frame 200 when performing linear motion. Furthermore, the fixed frame 200 and the simulation arm 300 can also achieve direct contact through the cooperation of the track and the connecting piece, and the weight of the simulation arm 300 can be transferred to the track through the connecting piece, so that the fixed frame 200 can play a certain supporting role on the simulation arm 300 through the track, which better simulates the actual application on the surgical robot, improves the stability of the overall mechanism, and makes the results of the fatigue test more reliable.

[0053] In particular, since the telescopic movement of the surgical robot's robotic arm generally needs to take into account movement efficiency or stability, it is necessary to minimize friction. Therefore, the track and the connecting part in this embodiment have rolling friction, which can better simulate the application scenario of the surgical robot and make the fatigue test more realistic.

[0054] Combination Figure 7 As shown, in some embodiments, the track provided on the fixing frame 200 includes a slot body 211, and the length direction of the slot body 211 provided on the fixing frame 200 is kept parallel to the axial direction of the lead screw 120. The connecting member provided on the simulation arm 300 includes a cam 311. Specifically, a first connecting plate 312 and a second connecting plate 313 are provided on a side wall of the simulation arm 300 facing the lead screw 120. The first connecting plate 312 and the second connecting plate 313 are provided in parallel with each other. The cam 311 is provided between the first connecting plate 312 and the second connecting plate 313, and one end of the rotating shaft of the cam 311 is rotatably connected to the first connecting plate 312 through a bearing, and the other end of the rotating shaft of the cam 311 is rotatably connected to the second connecting plate 313 through a bearing.

[0055] Before the fatigue test, the screw rod 120 is first installed on the fixed frame 200, and then the simulation arm 300 is installed on the sliding block 121. During this process, part of the cam 311 on the simulation arm 300 extends into the slot body 211, and the side wall of the slot body 211 can limit the cam 311, so that the cam 311 is engaged in the slot body 211. When the motor 140 is started, the motor 140 drives the screw rod 120 to rotate through the synchronous belt 130. When the screw rod 120 drives the sliding block 121 to drive the simulation arm 300 to move, the cam 311 on the simulation arm 300 can move in the slot body 211, so that the cam 311 can move in the slot body 211 in a rolling manner, realizing the rolling engagement between the connector and the track.

[0056] It is understandable that, since part of the cam 311 extends into the slot body 211, the side wall of the slot body 211 can limit the cam 311, so that the cam 311 can only move along the length direction of the slot body 211, and then the track can better achieve auxiliary guidance of the movement of the simulation arm 300 by limiting the cam 311, avoiding unstable factors such as shaking between the simulation arm 300 and the fixed frame 200. Furthermore, while the side wall of the slot body 211 limits the cam 311, the slot body 211 can support the cam 311 to a certain extent, better improving the stability of the overall mechanism, making the fatigue test process closer to the actual application on the surgical robot, so as to improve the reliability of the fatigue test results.

[0057] like Figure 1 As shown, in some embodiments, a photoelectric sensor 400 is provided at one end of the axial direction of the screw rod 120, and the photoelectric sensor 400 is electrically connected to an external controller. In the process of the screw rod 120 rotating and driving the sliding block 121 to drive the simulation arm 300 to do linear motion, when the simulation arm 300 moves to a position corresponding to the photoelectric sensor 400, the photoelectric sensor 400 senses the simulation arm 300, and at this time, the photoelectric sensor 400 sends a trigger signal to the external controller, and the external controller controls the motor 140 to rotate in the opposite direction after receiving the trigger signal, so that the screw rod 120 rotates in the opposite direction to drive the sliding block 121 to drive the simulation arm 300 to do linear motion in the opposite direction, and after the simulation arm 300 moves in the opposite direction for a period of time, the external controller automatically controls the motor 140 to rotate in the forward direction, so that the screw rod 120 rotates in the forward direction to drive the sliding block 121 to drive the simulation arm 300 to do linear motion in the forward direction, and the reciprocating cycle can better realize the automatic fatigue test of the motor 140.

[0058] Furthermore, photoelectric sensors 400 may be provided at both ends of the screw rod 120 in the axial direction, so that the robot arm can be detected by the photoelectric sensors 400 at the two extreme positions of linear motion, thereby enabling the photoelectric sensors 400 to send a trigger signal to an external controller, so that the external controller controls the direction of the motor 140.

[0059] Furthermore, the photoelectric sensor 400 may be disposed on the fixing frame 200 and / or the linear drive module 100 .

[0060] Of course, a photoelectric sensor 400 can also be set on the simulation arm 300, so that when the photoelectric sensor 400 detects that the simulation arm 300 moves to the extreme position of the screw rod 120, the external controller can control the direction of the motor 140 to automatically perform fatigue testing on the motor 140.

[0061] like Figure 1 and Figure 4 As shown, in some embodiments, the fixing frame 200 includes a base 201 and a mounting plate 202 , wherein the base 201 and the mounting plate 202 are arranged at a certain angle, and the screw rod 120 is rotatably mounted on the mounting plate 202 .

[0062] It can be understood that during the fatigue test, the mounting plate 202 is above the base 201. Since the screw rod 120 is installed on the mounting plate 202, when the simulation arm 300 is connected to the screw rod 120 through the sliding block 121, the simulation arm 300 can be in a suspended state, which can better simulate the suspended state of the robotic arm of the surgical robot, making the working state of the motor 140 more realistic, thereby improving the reliability of the results of the fatigue test on the motor 140.

[0063] In some embodiments, a plurality of reinforcing ribs 203 are provided between the base 201 and the mounting plate 202. The provision of the reinforcing ribs 203 can improve the overall structural strength of the fixing frame 200, thereby providing stable support for the linear drive module 100 and improving the safety of the entire fatigue testing process.

[0064] like Figure 1-2 and Figure 5 As shown, in some embodiments, a detachable weight-bearing piece 301 is provided on the simulation arm 300 by bolts. By replacing the weight-bearing pieces 301 of different weights, the robotic arms of surgical robots of different weights can be better simulated, so that different fatigue test environments can be switched as needed, thereby achieving an effect of ease of use.

[0065] It is understandable that by adding the weight-bearing member 301 to the simulation arm 300 , the actual working state can be better simulated, thereby making the result of the fatigue test on the motor 140 more reliable.

[0066] like Figure 1 and Figure 3 As shown, in some embodiments, the linear drive module 100 includes a bracket 110 in addition to the screw rod 120, the synchronous belt 130 and the motor 140, wherein the screw rod 120 and the motor 140 are both mounted on the bracket 110, and the bracket 110 is detachably mounted on the mounting plate 202 to realize the installation of the screw rod 120 on the mounting plate 202.

[0067] Furthermore, a first positioning threaded hole 202a is provided on the mounting plate 202 , and a second positioning threaded hole 111 is provided on the bracket 110 . The bracket 110 is fixedly mounted on the mounting plate 202 by a positioning bolt passing through the second positioning threaded hole 111 and extending into the first positioning threaded hole 202a .

[0068] Furthermore, a first connecting threaded hole 121a is provided on the sliding block 121, and a second connecting threaded hole 302 is provided on the simulation arm 300. The simulation arm 300 is fixedly installed on the sliding block 121 by fastening bolts passing through the second connecting threaded hole 302 and extending into the first connecting threaded hole 121a.

[0069] Example 2

[0070] Combination Figure 1-2 and Figure 4-6 As shown, this embodiment is an improvement made on the basis of Embodiment 1, a linear drive module 100 detection tooling, wherein a track arranged on a fixed frame 200 includes a support plate 212, and the length direction of the support plate 212 arranged on the fixed frame 200 is kept parallel to the axial direction of the screw rod 120; the connecting member arranged on the simulation arm 300 includes a roller 314, specifically, the roller 314 is arranged between the first connecting plate 312 and the second connecting plate 313, and one end of the rotating shaft of the roller 314 is rotatably connected to the first connecting plate 312 through a bearing, and the other end of the rotating shaft of the roller 314 is rotatably connected to the second connecting plate 313 through a bearing.

[0071] Before conducting a fatigue test, the screw rod 120 is first installed on the fixed frame 200, and then the simulation arm 300 is installed on the sliding block 121. During this process, the side edge of the support plate 212 on the fixed frame 200 extends between the first connecting plate 312 and the second connecting plate 313 and abuts against the circumferential side wall of the roller 314, so that the fixed frame 200 forms a rollable fit with the simulation arm 300 through the support plate 212 and the roller 314; further, when the side edge of the support plate 212 abuts against the roller 314, the side edge of the support plate 212 is between the first connecting plate 312 and the second connecting plate 313, so that the first connecting plate 312 and the second connecting plate 313 can limit the side edge of the support plate 212, that is, the support plate 212 is clamped between the first connecting plate 312 and the second connecting plate 313. When the motor 140 is started, the motor 140 drives the screw rod 120 to rotate through the synchronous belt 130. In the process of the screw rod 120 driving the sliding block 121 to drive the simulation arm 300 to move, the support plate 212 on the fixed frame 200 can generate relative movement with the roller 314 between the first connecting plate 312 and the second connecting plate 313, thereby realizing the rolling snap-fitting between the connecting piece and the track.

[0072] It can be understood that since the side of the support plate 212 extends between the first connecting plate 312 and the second connecting plate 313, the support plate 212 can limit the first connecting plate 312 and the second connecting plate 313, so that the support plate 212 remains between the first connecting plate 312 and the second connecting plate 313, so that the roller 314 can only move along the length direction of the support plate 212, and thus it is better to achieve auxiliary guidance of the movement of the simulation arm 300 by limiting the roller 314, thereby avoiding unstable factors such as shaking between the simulation arm 300 and the fixed frame 200. Furthermore, while the support plate 212 limits the first connecting plate 312 and the second connecting plate 313, it also limits the roller 314, so that the roller 314 can only move on the support plate 212 along the length direction of the support plate 212, and the support plate 212 can support the first connecting plate 312, the second connecting plate 313 and the roller 314 to a certain extent, thereby preferably improving the stability of the overall structure, making the fatigue test process closer to the actual application on the surgical robot, so as to improve the reliability of the fatigue test structure.

[0073] like Figure 2 and Figure 5-6As shown, in some embodiments, a first retaining ring 314a and a second retaining ring 314b are respectively provided at both ends of the roller 314 in the axial direction, and the first retaining ring 314a and the second retaining ring 314b both protrude from the circumferential side wall of the roller 314. Before the fatigue test, the screw rod 120 is first installed on the fixing frame 200, and then the simulation arm 300 is connected to the sliding block 121. During this process, the side edge of the support plate 212 extends between the first retaining ring 314a and the second retaining ring 314b and abuts against the circumferential side wall of the roller 314.

[0074] It is understandable that when the roller 314 is rotating, the synchronous belt 130 will also drive the first and second stop rings 314a and 314b to rotate. When the side edge of the support plate 212 abuts against the circumferential side wall of the roller 314, the side edge of the support plate 212 will be between the first retaining ring 314a and the second retaining ring 314b, wherein the first retaining ring 314a can separate the support plate 212 from the first connecting plate 312, and the second retaining ring 314b can separate the support plate 212 from the second connecting plate 313, so that the support plate 212 will not directly contact the first connecting plate 312 and the second connecting plate 313, thereby avoiding sliding friction between the support plate 212 and the first connecting plate 312 and the second connecting plate 313. When the simulation arm 300 moves, the roller 314, the first retaining ring 314a and the second retaining ring 314b all move relative to the support plate 212 in a rolling friction manner, which can better improve the operating efficiency of the simulation arm 300, be more in line with the actual usage scenario, and make the fatigue test results more reliable.

[0075] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A linear drive module detection tool, characterized in that: It includes a fixing frame for mounting a lead screw, and a simulation arm that can be connected to a sliding block on the lead screw; When the motor matched with the lead screw through the synchronous belt is working, the lead screw can drive the sliding block to drive the simulation arm to perform linear motion through self-rotation.

2. The linear drive module detection tooling according to claim 1, characterized in that: The fixing frame is provided with a track parallel to the axial direction of the screw rod; the simulation arm is provided with a connecting piece; When the simulation arm is mounted on the sliding block, the connecting member can maintain a rolling snap-fit ​​engagement with the track.

3. The linear drive module detection tooling according to claim 2, characterized in that: The track includes a slot body, and the connecting member includes a rotatable cam; When the simulation arm is mounted on the sliding block, part of the cam extends into the slot body.

4. The linear drive module detection tooling according to claim 2, characterized in that: The track includes a support plate; the connecting member includes a rotatable roller; When the simulation arm is installed on the sliding block, the roller is clamped on the side of the support plate.

5. The linear drive module detection tooling according to claim 4, characterized in that: A first retaining ring and a second retaining ring are respectively provided at both ends of the roller in the axial direction; When the simulation arm is installed on the sliding block, part of the support plate extends between the first retaining ring and the second retaining ring to achieve the snap-fitting between the roller and the support plate.

6. The linear drive module detection tooling according to claim 1, characterized in that: A photoelectric sensor which can be triggered to control the direction of rotation of the motor is provided at at least one end of the lead screw in the axial direction and / or at the simulation arm.

7. The linear drive module detection tooling according to claim 1, characterized in that: The fixing frame comprises a base and a mounting plate which are arranged at an angle, and the screw rod is rotatably mounted on the mounting plate.

8. The linear drive module detection tooling according to claim 7, characterized in that: Reinforcing ribs are provided between the base and the mounting plate.

9. The linear drive module detection tooling according to claim 1, characterized in that: The simulation arm is provided with a detachable weight-bearing piece.

10. The linear drive module detection tooling according to any one of claims 1 to 9, characterized in that: The screw rod is rotatably mounted on a bracket, and the bracket is detachably mounted on the fixing frame.

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