Arcuate guide rail running-in, testing device and method

Abstract

The present application relates to a kind of arc guide rail running, testing device and method, belong to industrial detection technical field, solve the problem that guide rail testing device cannot be applied to arc guide rail in prior art.The present application includes drive system, guide rail movement system, bottom plate, support column and control system, one end of drive system is connected with guide rail movement system, the other end of drive system is electrically connected with control system, and guide rail movement system is connected by support column and bottom plate.The arc guide rail running, testing device of the present application can realize the running and friction force test of a plurality of specifications semicircle ring and circular ring guide rail, the test result is accurate, the running, test of arc track can be empty load, also can be loaded, the size of running load can be adjusted, while equipment and personnel safety can be guaranteed.

Description

Technical Field

[0001] This invention belongs to the field of industrial testing technology, and in particular relates to an arc-shaped guide rail running-in and testing device and method. Background Technology

[0002] Guide rails are commonly used guiding devices in industrial automation and medical equipment fields. During use, they serve to bear loads, guide moving devices, and reduce friction. The guide rail and slider utilize ball bearings for movement, allowing them to withstand higher rated loads, bear a certain amount of torque, and maintain good motion accuracy.

[0003] Arc-shaped guide rails are widely used in the medical, automation, and machine tool fields because they can guide circular motion.

[0004] Due to differences in manufacturing and assembly precision, certain errors exist after the guide rail and slider are assembled. The most obvious error is the difference in the magnitude of the frictional force of the slider. The frictional characteristics of the guide rail are a direct factor affecting the smoothness of the system's motion. Because there are many influencing factors, theoretical modeling and calculation are very difficult. In practical applications, tooling alignment is often used for testing, followed by a break-in period to meet usage requirements. Currently, a servo motor drives a ball screw, and a tension / compression sensor is used to obtain the frictional force of the linear guide rail. However, this device is only suitable for the break-in and testing of linear guide rails and cannot be applied to curved guide rails.

[0005] Therefore, there is an urgent need for a device for running-in and testing of arc-shaped guide rails. Summary of the Invention

[0006] Based on the above analysis, the present invention aims to provide a running-in and testing device and method for arc-shaped guide rails, so as to solve the problem that the prior art cannot perform running-in and testing of arc-shaped guide rails.

[0007] The objective of this invention is mainly achieved through the following technical solutions:

[0008] An arc-shaped guide rail running-in and testing device includes a drive system, a guide rail motion system, a base plate, a support column, and a control system. One end of the drive system is connected to the guide rail motion system, and the other end of the drive system is electrically connected to the control system. The guide rail motion system is connected to the base plate through the support column.

[0009] Furthermore, the guide rail motion system also includes a second arc-shaped guide rail and a second slider.

[0010] Furthermore, the drive system includes a motor, which is electrically connected to the control system.

[0011] Furthermore, the drive system also includes a torque sensor, which is connected to the motor and the control system.

[0012] Furthermore, the torque sensor is also connected to the guide rail motion system.

[0013] Furthermore, the first arc-shaped guide rail is a semi-circular ring guide rail.

[0014] A method for testing an arc-shaped guide rail using the aforementioned arc-shaped guide rail running-in and testing device includes the following steps:

[0015] Step 1: Install the curved guide rail and slider

[0016] Install the first arc-shaped guide rail and the first slider on the guide rail seat;

[0017] Step 2: Connect the curved guide rail, slider, and connecting rod;

[0018] Step 3: Test the first curved guide rail and the first slider;

[0019] Step 4: Access and analyze the test data, then end the test.

[0020] A method for running-in of an arc-shaped guide rail using the aforementioned arc-shaped guide rail running-in and testing device includes the following steps:

[0021] Step 1: Install the curved guide rail and slider;

[0022] Install a second arc-shaped guide rail and a second slider on the guide rail base;

[0023] Step 2: Connect the curved guide rail, slider, and connecting rod, and apply a load;

[0024] Step 3: Run-in of the second arc-shaped guide rail and the second slider;

[0025] Step 4: Compare the run-in data and end the run-in process.

[0026] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0027] (1) The guide rail motion system and control system of the present invention can realize both the running-in of the arc-shaped guide rail and the testing of the friction force of the arc-shaped guide rail;

[0028] (2) The arc-shaped guide rail fixing device of the present invention is adjustable and can install arc-shaped guide rails of various specifications. Thus, the present invention can test arc-shaped guide rails of various specifications.

[0029] (3) The guide rail motion system of the present invention enables the running-in and testing of the arc track to be carried out under no load or under load;

[0030] (4) The first load loading member, the second load loading member and the load block of the present invention can make the torque applied to the slider adjustable without replacing the load block.

[0031] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the specification or be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained from the content specifically pointed out in the text and accompanying drawings. Attached Figure Description

[0032] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0033] Figure 1 A schematic diagram of the overall structure of the arc-shaped guide rail running-in and testing device;

[0034] Figure 2 A schematic diagram of the connection structure between the drive system and the track motion system;

[0035] Figure 3 This is a schematic diagram of the track motion system.

[0036] Figure 4 for Figure 3 Sectional view of AA;

[0037] Figure 5 for Figure 3 BB section view;

[0038] Figure 6 This is a schematic diagram of the first arc-shaped guide rail test;

[0039] Figure 7 This is a schematic diagram of the second arc-shaped guide rail running-in.

[0040] Figure label:

[0041] 1-Drive system; 2-Guide rail motion system; 3-Base plate; 4-Support column; 5-Control system; 11-Motor; 12-Reducer; 13-Coupling; 14-Torque sensor; 15-Hollow shaft; 16-Hollow shaft housing; 17-Bearing; 21-Guide rail seat; 22-Bearing end cover; 23-Connecting rod; 24-Guide rail adapter; 25-First load loading component; 26-Slide groove; 27-Fixing block; 28-Second load loading component; 201-First arc-shaped guide rail; 202-First slider; 211-First proximity switch; 212-Second proximity switch; 221-Second arc-shaped guide rail; 222-Second slider; 231-First contact piece; 232-Second contact piece; 261-Mounting groove; 281-Positioning hole; 282-Positioning pin. Detailed Implementation

[0042] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0043] Example 1

[0044] A specific embodiment of the present invention, such as Figure 1 As shown, a running-in and testing device for an arc-shaped guide rail (hereinafter referred to as the testing device) is disclosed, comprising a drive system 1, a guide rail motion system 2, a base plate 3, a support column 4, and a control system 5. One end of the drive system 1 is connected to the guide rail motion system 2, and the other end of the drive system 1 is electrically connected to the control system 5. The guide rail motion system 2 is connected to the base plate 3 via the support column 4. The testing device of this invention is suitable for the running-in and testing of semi-circular guide rails.

[0045] Preferably, such as Figure 1 and Figure 2 As shown, the drive system 1 includes a motor 11, a reducer 12, a coupling 13, a torque sensor 14, a hollow shaft 15, a hollow shaft housing 16, and a bearing 17. The drive system 1 provides drive for the guide rail motion system 2, collects torque data, and transmits it to the control system 5.

[0046] The motor 11 is electrically connected to the control system 5. The control system 5 controls the rotation and stopping of the motor 11, and the motor 11 provides drive for the drive system 1.

[0047] Preferably, motor 11 is a servo motor, which adopts closed-loop control and has precise rotation angle.

[0048] The reducer 12 includes an input end and an output end. The input end is connected to the motor 11, and the output end is connected to the torque sensor 14 through the coupling 13. The reducer 12 changes the output direction of the motor 11 from horizontal to upward to save installation space. The reducer 12 can reduce the speed of the motor 11.

[0049] One end of the torque sensor 14 is connected to the hollow shaft 15 and electrically connected to the control system 5. The torque sensor 14 is used to collect torque data and transmit it to the control system 5. By acquiring the torque signal from the torque sensor 14, the torque data of the arc-shaped guide rail under different working conditions can be obtained, thereby obtaining the friction characteristics of the arc-shaped guide rail.

[0050] The hollow shaft 15 is connected to the guide rail motion system 2 via the bearing 17.

[0051] One end of the hollow shaft housing 16 is fixedly connected to the reducer 12, and the other end is fixedly connected to the guide rail motion system 2. The output end of the reducer 12, the coupling 13, the torque sensor 14, and the hollow shaft 15 are arranged inside the hollow shaft housing 16.

[0052] Preferably, such as Figure 3 As shown, the guide rail motion system 2 includes a guide rail seat 21, a bearing end cover 22, a connecting rod 23, a guide rail adapter 24, a first load loading component 25, a first arc-shaped guide rail 201, a first slider 202, a first proximity switch 211, a second proximity switch 212, and an arc-shaped guide rail fixing device.

[0053] Preferably, the guide rail seat 21 is connected to the hollow shaft 15 via a bearing 17, and the four corners of the guide rail seat 21 are provided with support columns 4. The guide rail seat 21 is connected to the base plate 3 via the four support columns 4. The guide rail seat 21 is used to install and fix the arc-shaped guide rail for running-in and testing.

[0054] Preferably, the bearing end cover 22 and the first arc-shaped guide rail 201 are disposed on the guide rail seat 21.

[0055] The bearing end cap 22 is disposed on the upper end of the bearing 17 and is fixedly connected to the guide rail seat 21. The bearing end cap 22 is used to restrict the bearing 17 and ensure that the bearing 17 will not come out of the guide rail seat 21.

[0056] Preferably, the first arc-shaped guide rail 201 is provided with a first slider 202, and the first arc-shaped guide rail 201 and the first slider 202 are arc-shaped guide rail and slider for testing.

[0057] Preferably, the connecting rod 23 is mounted on the hollow shaft 15, and the hollow shaft 15 drives the connecting rod 23 to rotate. One end of the connecting rod 23 is provided with a guide rail adapter 24, which is connected to the first slider 202. The connecting rod 23 drives the first slider 202 to move on the first arc-shaped guide rail 201 through the guide rail adapter 24.

[0058] Preferably, the connecting rod 23 includes a first contact piece 231, a second contact piece 232, a first end 233, and a second end 234, with the first contact piece 231 and the second contact piece 232 disposed on the first end 233.

[0059] Preferably, the guide rail base 21 is also provided with a first proximity switch 211 and a second proximity switch 212, which are electrically connected to the control system 5. When the connecting rod 23 rotates, the first contact piece 231 can trigger the first proximity switch 211; the second contact piece 232 can trigger the second proximity switch 212, thereby sending an interrupt signal to the control system 5.

[0060] Preferably, such as Figure 3 , Figure 4 and Figure 5 As shown, the arc-shaped guide rail fixing device consists of a slide groove 26 and a fixing block 27. The arc-shaped guide rail fixing device is used to fix the first arc-shaped guide rail 201.

[0061] Preferably, the slide groove 26 is disposed on the guide rail seat 21, and the slide groove 26 is a straight slide groove; the fixing block 27 is disposed in the slide groove 26, and the fixing block 27 can slide along the slide groove 26; the first arc-shaped guide rail 201 is disposed on the fixing block 27, and the fixing block 27 is used to fix the first arc-shaped guide rail 201.

[0062] Preferably, the fixing block 27 is a T-shaped fixing block to ensure that the fixing block 27 will not detach from the slide groove 26.

[0063] Preferably, the guide rail motion system 2 includes two or more arc-shaped guide rail fixing devices, and the sliding trajectories of each fixing block 27 are not parallel to each other. After the first arc-shaped guide rail 201 is connected to two or more fixing blocks 27, the first arc-shaped guide rail 201 cannot move.

[0064] Preferably, the slide groove 26 includes a mounting groove 261, and the fixing block 27 can be directly placed into the mounting groove 261 and then slid into the slide groove 26. The mounting groove 261 facilitates the installation of the fixing block 27 into the slide groove 26.

[0065] Preferably, the guide rail motion system 2 further includes a second arc-shaped guide rail 221 and a second slider 222, wherein the second arc-shaped guide rail 221 and the second slider 222 are arc-shaped guide rails and sliders used for running-in.

[0066] Preferably, the upper end of the guide rail adapter 24 is provided with a first load loading member 25, which applies a light load to the arc-shaped guide rail and slider for testing or running-in of the arc-shaped guide rail and slider.

[0067] Preferably, the first load loading member 25 is provided with a second load loading member 28, which is a load loading rod. The second load loading member 28 includes a connecting end and a load loading end, and the connecting end is connected to the first load loading member 25. A load block (not shown in the figure) is provided on the load loading end.

[0068] The second load loading element 28 can load a larger load than the first load loading element 25 onto the second slider 222 to facilitate the running-in of the arc guide rail and the slider.

[0069] Preferably, the second load loading member 28 includes a plurality of positioning holes 281, and the first load loading member 25 includes a through hole and a positioning pin 282. The second load loading member 28 can be inserted into the through hole of the first load loading member 25 and connected to the first load loading member 25 by means of the positioning holes 281 and the positioning pin 282, thereby realizing that the length of the second load loading member 28 protruding from the first load loading member 25 is adjustable, and the torque loaded on the first slider 202 can be adjusted without replacing the load block.

[0070] Preferably, the guide rail motion system 2 can be equipped with multiple arc-shaped guide rails of different specifications at the same time.

[0071] Preferably, a buffer pad (not shown in the figure) is provided between the support column 4 and the guide rail seat 21, and between the support column 4 and the base plate 3. The buffer pad is an elastic pad, which is used to reduce the vibration of the guide rail motion system 2, so as to make the running-in process smooth and the test experiment accurate.

[0072] Compared with the prior art, the testing device provided in this embodiment can realize the running-in and friction test of semi-circular rings and circular ring guide rails of various specifications. The test results are accurate. The running-in and testing of the arc track can be carried out under no load or under load. The running-in load size can be adjusted, while ensuring the safety of equipment and personnel.

[0073] Example 2

[0074] Another specific embodiment of the present invention, such as Figure 3 and Figure 6 As shown, a method for testing curved guide rails is disclosed, including the following steps:

[0075] Step 1: Install the curved guide rail and slider

[0076] like Figure 3 As shown, a first arc-shaped guide rail 201 and a first slider 202 are installed on the test device of Embodiment 1;

[0077] Specifically, the first arc-shaped guide rail 201 is connected to two or more fixed blocks 27, and the first slider 202 is connected to the first arc-shaped guide rail 201;

[0078] Step 2: Connect the curved guide rail, slider, and connecting rod 23.

[0079] like Figure 6 As shown, the guide rail adapter 24 is connected to the first slider 202 and the first end 233 respectively;

[0080] Step 3: Testing the first arc-shaped guide rail 201 and the first slider 202

[0081] When the starting position of the connecting rod 23 is set, the second contact piece 232 triggers the second contact switch 212; when the stopping position of the connecting rod 23 is set, the first contact piece 231 triggers the first contact switch 211; the connecting rod 23 rotates counterclockwise by an angle of C.

[0082] The control system 5 powers the motor 11, and the connecting rod 23 rotates counterclockwise from the starting position, driving the first slider 202 to slide on the first arc-shaped guide rail 201. At the same time, the torque sensor 14 collects torque data and transmits it to the control system 5.

[0083] After the connecting rod 23 rotates to the stop position by an angle C, the first contact piece 231 triggers the first contact switch 211, and the first contact switch 211 sends an interrupt signal to the control system 5. The control system 5 stops the motor 11 and then reverses it.

[0084] The connecting rod 23 rotates clockwise from the stop position, causing the first slider 202 to slide on the first arc-shaped guide rail 201. At the same time, the torque sensor 14 collects torque data and transmits it to the control system 5.

[0085] After the connecting rod 23 rotates to the starting position by an angle of C, the second contact piece 232 triggers the second contact switch 212, and the second contact switch 212 sends an interrupt signal to the control system 5, and the control system 5 stops the motor 11.

[0086] Step 4: Access and analyze the test data, then end the test.

[0087] The torque sensor 14 reads the starting friction torque and normal operating friction torque data of the first arc-shaped guide rail 201 and the first slider 202 every 1 millisecond, and transmits the above data to the control system 5. The control system 5 compiles a torque curve data table of the test process and plots the torque curve to provide feedback on the friction characteristics of the guide rail and the slider.

[0088] Example 3

[0089] Another specific embodiment of the present invention, such as Figure 3 and Figure 7 As shown, a running-in method for an arc-shaped guide rail is disclosed, including the following steps:

[0090] Step 1: Install the curved guide rail and slider

[0091] like Figure 3 As shown, a second arc-shaped guide rail 221 and a second slider 222 are installed on the test device of Embodiment 1;

[0092] Step 2: Connect the curved guide rail, slider, and connecting rod 23 and apply the load.

[0093] Specifically, the connection between the guide rail adapter 24 and the first slider 202 and the first end 233 is disconnected, such as... Figure 7 As shown, the guide rail adapter 24 is connected to the second slider 222 and the second end 234 respectively;

[0094] Guide rail adapter 24 connects to the first load loading component 25;

[0095] The first load loading member 25 is connected to the second load loading member 28, and one end of the second load loading member 28 is loaded with the required load (not shown in the figure);

[0096] Adjust the length of the second load loading component 28 that protrudes from the first load loading component 25 according to the running-in requirements;

[0097] Preferably, the positioning pin 282 is pulled out, and the depth of the second load loading member 28 inserted into the first load loading member 25 is adjusted according to the torque requirement applied to the second slider 222. When the length of the second load loading member 28 protruding from the first load loading member 25 reaches the requirement, the fixing pin 282 is inserted into the positioning hole 281 to complete the position adjustment of the second load loading member 28.

[0098] Step 3: Run-in the second arc-shaped guide rail 221 and the second slider 222

[0099] When the starting position of the connecting rod 23 is set, the second contact piece 232 triggers the second contact switch 212; when the stopping position of the connecting rod 23 is set, the first contact piece 231 triggers the first contact switch 211; the connecting rod 23 rotates counterclockwise by an angle of C.

[0100] The control system 5 energizes the motor 11, and the connecting rod 23 rotates counterclockwise from the starting position, causing the second slider 222 to slide on the second arc-shaped guide rail 221.

[0101] After the connecting rod 23 rotates to the stop position by an angle of B, the first contact piece 231 triggers the first contact switch 211, and the first contact switch 211 sends an interrupt signal to the control system 5. The control system 5 stops the motor 11 and then reverses it.

[0102] The connecting rod 23 rotates clockwise from the stop position, causing the second slider 222 to slide on the second arc-shaped guide rail 221;

[0103] After the connecting rod 23 rotates to the starting position by an angle of C, the second contact piece 232 triggers the second contact switch 212. The second contact switch 212 sends an interrupt signal to the control system 5. The control system 5 stops the motor 11 and then reverses it.

[0104] The control system counts 5 times once.

[0105] Step 4: Compare the break-in data and end the break-in period.

[0106] Repeat the above steps n times, where n is 8 × 10 5 -10×10 5 Second-rate.

[0107] The torque sensor 14 reads the running friction torque data of the second arc-shaped guide rail 221 and the second slider 222 every 1 millisecond, and transmits the data to the control system 5. The control system 5 stores the running friction torque data and plots the torque curve.

[0108] Starting from n+1, the control system 5 compares the torque curves of the most recent run-in and the previous run-in. When the difference between the last 100 comparisons is less than 1%, the run-in is stopped.

[0109] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A running-in and testing device for an arc-shaped guide rail, characterized in that, It includes a drive system (1) and a guide rail motion system (2), one end of the drive system (1) is connected to the guide rail motion system (2), the drive system (1) drives the guide rail motion system (2), and the guide rail motion system (2) includes a first arc-shaped guide rail (201) and a first slider (202); The guide rail motion system (2) also includes a guide rail seat (21) and an arc-shaped guide rail fixing device; the arc-shaped guide rail fixing device consists of a slide groove (26) and a fixing block (27); the slide groove (26) is disposed on the guide rail seat (21), the fixing block (27) is disposed in the slide groove (26), the first arc-shaped guide rail (201) is disposed on the fixing block (27), and the fixing block (27) is used to fix the first arc-shaped guide rail (201); the arc-shaped guide rail fixing device is adjustable and can install arc-shaped guide rails of various specifications; The guide rail motion system (2) further includes a first load loading member (25) and a first slider (202); the first slider (202) is connected to the first arc-shaped guide rail (201); the first load loading member (25) is provided with a second load loading member (28), the second load loading member (28) is a load loading rod, the length of the second load loading member (28) protruding from the first load loading member (25) is adjustable, and the second load loading member (28) is used to adjust the torque loaded on the first slider (202).

2. The arc-shaped guide rail running-in and testing device according to claim 1, characterized in that, It also includes a base plate (3) and a support column (4), and the guide rail motion system (2) is connected to the base plate (3) through the support column (4).

3. The arc-shaped guide rail running-in and testing device according to claim 1, characterized in that, It also includes a control system (5), which is electrically connected to the drive system (1) and the guide rail motion system (2).

4. The arc-shaped guide rail running-in and testing device according to claim 3, characterized in that, The guide rail motion system (2) also includes a second arc-shaped guide rail (221) and a second slider (222).

5. The arc-shaped guide rail running-in and testing device according to claim 4, characterized in that, The drive system (1) includes a motor (11), which is electrically connected to the control system (5).

6. The arc-shaped guide rail running-in and testing device according to claim 5, characterized in that, The drive system (1) also includes a torque sensor (14), which is connected to the motor (11) and the control system (5).

7. The arc-shaped guide rail running-in and testing device according to claim 6, characterized in that, The torque sensor (14) is also connected to the guide rail motion system (2).

8. The arc-shaped guide rail running-in and testing device according to claim 5, characterized in that, The first arc-shaped guide rail (201) is a semi-circular ring guide rail.

9. A method for testing an arc-shaped guide rail using the arc-shaped guide rail running-in and testing device according to any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Install the curved guide rail and slider Install the first arc-shaped guide rail (201) and the first slider (202) on the guide rail base (21); Step 2: Connect the curved guide rail, slider, and connecting rod (23); Step 3: Test the first arc-shaped guide rail (201) and the first slider (202); Step 4: Access and analyze the test data, then end the test.

10. A method for running-in an arc-shaped guide rail using the arc-shaped guide rail running-in and testing device according to any one of claims 4-8, characterized in that, Includes the following steps: Step 1: Install the curved guide rail and slider; Install a second arc-shaped guide rail (221) and a second slider (222) on the guide rail seat (21); Step 2: Connect the arc-shaped guide rail, slider, and connecting rod (23) and apply a load; Step 3: Run-in the second arc-shaped guide rail (221) and the second slider (222); Step 4: Compare the run-in data and end the run-in process.

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