Clamp reciprocating test device
By designing a clamp reciprocating test device, using a drive motor and inductive counting device to record the number of tests, and combining a push-pull force gauge to measure the holding force, the problem that existing test devices cannot perform reciprocating tests related to clamp holding force and life is solved, and automated and efficient test result evaluation is achieved.
Patent Information
- Application Number
- CN202520058678.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-01-19
- Filing Date
- 2025-01-10
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-10
AI Technical Summary
Existing testing equipment can only perform vibration and impact tests on clamps, lacking reciprocating tests related to clamp holding force and lifespan, and lacking quick measurement methods, resulting in unstable artificial simulations and a large consumption of manpower and resources.
A clamp reciprocating test device was designed. By combining components such as a drive motor, coupling shaft, main shaft, rotating shaft, connecting rod bearing, and clamp fixing plate, the number of tests is recorded by an inductive counting device, and the holding force is measured by a push-pull force gauge to simulate the reciprocating motion of the clamp in actual use.
It enables automated measurement of clamp life and accurate assessment of holding force, reduces the instability of manual simulation, improves test efficiency and data accuracy, and reduces manpower and material consumption.
Smart Images
Figure CN223741943U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of engine testing equipment and relates to a clamp reciprocating testing device. Background Technology
[0002] With the development of the aviation industry, the types of engine pipe clamps are increasing, and the operating environments are becoming more specialized. This places increasingly higher demands on the clamps' lifespan and holding force. However, existing testing equipment can only perform vibration and impact tests on clamps, lacking testing for holding force and lifespan-related reciprocating forces. Currently, there is no quick way to measure the wear life and holding force of clamps. Measurements are currently only possible through manual simulations of relative displacement during actual use, thousands of times. This process is extremely time-consuming, resource-intensive, and inherently unstable, significantly impacting the test results. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a clamp reciprocating test device to solve the problem that the existing test devices can only perform vibration tests and impact tests on clamps, and lack test devices for clamp holding force tests and reciprocating tests related to life.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] This utility model provides a clamp reciprocating test device, including a connecting shaft with a first hole and a second hole. The first hole is connected to a push-pull force gauge, and the second hole is connected to one end of a main shaft. The other end of the main shaft is connected to one end of a connecting rod bearing, and the other end of the connecting rod bearing is connected to a second rotating shaft. The second rotating shaft is connected to the first rotating shaft, and the first rotating shaft is connected to a drive device. A clamp fixing plate is provided below the connecting shaft, and a fixing plate is provided below the clamp fixing plate. An inductive counting device is provided on the fixing plate, and a magnet is provided on the second rotating shaft. The inductive counting device and the magnet sense and record the number of tests.
[0006] In practice, the coupling is connected to the main shaft via a coupling screw located in the second hole.
[0007] In the specific implementation process, the second rotating shaft is connected to the connecting rod bearing by a distance adjustment screw. The distance adjustment screw can also adjust the distance between the first rotating shaft and the second rotating shaft, thereby adjusting the reciprocating distance.
[0008] In the specific implementation process, a guide bearing is provided on the main shaft, and the cooperation between the guide bearing and the main shaft ensures the straightness of the reciprocating motion of the connecting shaft within the clamp.
[0009] In practice, the inductive counting device includes a counting sensor and a counter; the counting sensor and the counter are electrically connected.
[0010] In specific implementation, the driving device includes a drive motor, and the drive shaft on the drive motor is connected to the first rotating shaft; the rotation of the drive shaft causes the first rotating shaft to rotate, thereby driving the connecting shaft to perform reciprocating motion.
[0011] In the specific implementation process, the fixing plate includes a flat plate, a raised platform, and an L-shaped plate; the raised platform and the L-shaped plate are respectively set at both ends of the flat plate; the L-shaped plate includes a long plate and a short plate connected to each other.
[0012] In the specific implementation process, the clamp fixing plate is set above the raised platform, the driving device passes through the long plate and is set on the flat plate; the induction counting device is set on the short plate.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This invention provides a clamp reciprocating test device, comprising 10 parts including a drive motor, a fixing plate, an inductive counting device, a guide bearing, a connecting rod bearing, a first rotating shaft, a second rotating shaft, a clamp fixing plate, a main shaft, and a connecting shaft, which are assembled and fixed by bolts. The opening on the connecting shaft can connect to the main shaft to conduct reciprocating tests and obtain life-related data. It can also connect to a push-pull force gauge to measure the clamp's holding force. The inductive counting device uses a magnet on the second rotating shaft to count and record the number of reciprocating movements. This device can conduct reciprocating tests on clamps through the rotation of the connecting rod bearing, the first rotating shaft, the second rotating shaft, the main shaft, and the connecting shaft. It can simulate the impact of pipe clamp misalignment caused by engine vibration during actual use, obtaining reciprocating test data related to the clamp's lifespan. Furthermore, by using the connecting shaft in conjunction with a push-pull force gauge, it can measure the clamp's holding force, thus preventing malfunctions during engine use.
[0015] Furthermore, the distance between the first and second rotating shafts is adjusted using distance adjustment screws, and the straightness of the reciprocating motion of the connecting shaft within the clamp is ensured through the cooperation of the guide bearing and the main shaft. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the clamp reciprocating test device of this utility model;
[0017] Figure 2 This is a schematic diagram of the coupling installation position of the clamp reciprocating test device of this utility model;
[0018] Figure 3This is a schematic diagram showing the connection between the coupling and the main shaft of the clamp reciprocating test device of this utility model;
[0019] Figure 4 This is a schematic diagram of the rotation process of the first and second rotating shafts of the clamp reciprocating test device of this utility model. In this diagram, (a) is a schematic diagram without rotation, and (b) is a schematic diagram after half a turn of rotation.
[0020] Figure 5 This is a schematic diagram of the induction counting device of the clamp reciprocating test device of this utility model and the second rotating shaft performing one induction. In this diagram, (a) is a schematic diagram of the second rotating shaft before passing through the induction counting device, and (b) is a schematic diagram of the second rotating shaft passing through the induction counting device.
[0021] Figure 6 Figure 1 is a schematic diagram of the reciprocating test process of the clamp reciprocating test device of this utility model. Figure 2 shows the schematic diagram without rotation, Figure 3 shows the schematic diagram with 90 degrees rotation, Figure 4 shows the schematic diagram with 180 degrees rotation, and Figure 5 shows the schematic diagram with 270 degrees rotation.
[0022] Figure 7 This is a schematic diagram of the structure of the clamp reciprocating test device of this utility model;
[0023] Figure 8 This is a schematic diagram of the first rotating shaft of the clamp reciprocating test device of this utility model;
[0024] Figure 9 This is a schematic diagram of the second rotating shaft of the clamp reciprocating test device of this utility model;
[0025] Figure 10 This is a schematic diagram of the tenon-and-mortise connection between the drive motor and the first rotating shaft of the clamp reciprocating test device of this utility model;
[0026] Figure 11 This is a bottom schematic diagram of the drive motor of the clamp reciprocating test device of this utility model.
[0027] Wherein: 1-Drive motor speed control box; 2-Counter; 3-Drive motor; 4-Fixing plate; 5-Clamping plate; 6-Coupling; 7-Coupling screw; 8-Guide bearing; 9-Main shaft; 10-Connecting rod bearing; 11-Distance adjustment screw; 12-Counting sensor; 13-First rotating shaft; 14-Second rotating shaft. Detailed Implementation
[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0030] The present invention will now be described in further detail with reference to the accompanying drawings:
[0031] See Figure 1 The first aspect of this utility model provides a clamp reciprocating test device. The test device mainly consists of 10 parts, including a drive device, a fixing plate 4, an induction counting device, a guide bearing 8, a connecting rod bearing 10, a first rotating shaft 13, a second rotating shaft 14, a clamp fixing plate 5, a main shaft 9, and a connecting shaft 6, which are combined and assembled by bolt fixing.
[0032] The coupling 6 has a first hole and a second hole. The first hole is connected to a push-pull force gauge to measure the retaining force of the clamp, and the second hole is connected to one end of the main shaft 9 to conduct reciprocating tests to obtain wear life test data of the clamp. More specifically, the coupling 6 and the main shaft 9 are connected by a coupling screw 7 set in the second hole.
[0033] The other end of the main shaft 9 is connected to one end of the connecting rod bearing 10, the other end of the connecting rod bearing 10 is connected to the second rotating shaft 14, the second rotating shaft 14 is connected to the first rotating shaft 13, and the first rotating shaft 13 is connected to the drive device.
[0034] The fixed plate 4 is equipped with a clamp fixing plate 5, a connecting shaft 6, a main shaft 9, a guide bearing 8, a connecting rod bearing 10, a first rotating shaft 13, a second rotating shaft 14, an induction counting device, and a drive device; specifically, the clamp fixing plate 5 is set below the connecting shaft 6, and a magnet is set on the second rotating shaft 14. The induction counting device and the magnet induction record the number of tests.
[0035] like Figure 2 As shown, the pipe clamp holds the coupling 6 and is bolted to the clamp fixing plate 5. The clamp fixing plate 5 is bolted to the fixing plate 4. One of the two holes on the coupling 6 is used to connect a push-pull force gauge. The force gauge is used to pull the coupling 6 to measure the holding force of the pipe clamp. Figure 3 As shown, the other hole can be used to connect the coupling 6 and the main shaft 9 using the coupling screw 7. When it is necessary to measure the holding force, the coupling screw 7 can be removed to detach the coupling 6 from the main shaft 9. A hole is reserved on the coupling 6 for the push-pull force gauge to measure the holding force of the clamp. By connecting with the push-pull force gauge, the effect of pipe clamp displacement caused by engine vibration on the pipe clamp in actual use can be effectively simulated, and the holding force of the pipe clamp on the pipe can be measured after how many reciprocating motions. This can effectively provide test data for engine design and effectively reduce the failure rate of engine power pipe clamps during operation.
[0036] like Figure 4 As shown in Figures (a) and (b), during the rotation process of the first and second rotating shafts, the distance of the reciprocating motion of the first rotating shaft 13 and the second rotating shaft 14 is adjusted by bolts. Specifically, the second rotating shaft 14 is connected to the first rotating shaft 13, and one end of the connecting rod bearing 10 is also connected to the second rotating shaft 14. The other end of the connecting rod bearing 10 is connected to one end of the main shaft 9. The main shaft 9 and the connecting rod bearing 10 are fixed by bolts. The first rotating shaft 13 and the second rotating shaft 14 are mortised and tenoned together, and are fixed by the distance adjustment screw 11 to the connecting rod bearing 10. Loosening the distance adjustment screw 11 can adjust the distance between the first rotating shaft 13 and the second rotating shaft 14, thereby adjusting the distance of the reciprocating motion.
[0037] The straightness of the reciprocating motion of the connecting shaft 6 within the clamp is ensured by the cooperation between the guide bearing 8 and the main shaft 9. The guide bearing 8 is fixed to the fixed plate 4 by bolts. The main shaft 9 passes through the guide bearing 8. During the reciprocating motion, the guide bearing 8 ensures that the direction of the main shaft 9 does not deviate.
[0038] The aforementioned driving device includes a drive motor 3, and the drive shaft on the drive motor 3 is connected to the first rotating shaft 13; as shown Figure 7 , Figure 10 and Figure 11As shown, the drive motor 3 includes a drive shaft, a gearbox, a drive gear connected to the drive shaft, another gear meshing with the drive gear, and a shaft connected to the drive gear. The gear meshes with the drive gear inside the gearbox.
[0039] The gearbox is fixed to the L-shaped plate on the fixing plate 4 by bolts, and the shaft passes through the L-shaped plate and is tenon-jointed to the first rotating shaft 13.
[0040] When the drive shaft of the drive motor 3 rotates one revolution, the first rotating shaft 13 also rotates one revolution, thereby driving the connecting shaft 6 to perform one reciprocating motion within the pipe clamp. The system also includes a drive motor speed control box 1, which is bolted to the drive motor 3 and connected to the mounting plate 4 via a cable. The speed of the reciprocating motion is adjusted by rotating the speed control switch of the drive motor, i.e., the drive motor speed control box 1.
[0041] Furthermore, after the drive motor speed control box 1 is connected to the power supply, the speed of the drive shaft on the drive motor 3 can be adjusted by turning the knob on the drive motor speed control box 1, thereby adjusting the speed of the connecting shaft 6 reciprocating within the pipe clamp.
[0042] The aforementioned inductive counting device utilizes a magnet on the second rotating shaft 14 for counting. The inductive counting device includes a counting sensor 12 and a counter 2; the counting sensor 12 and the counter 2 are electrically connected. Specifically, as shown... Figure 5 As shown, the counting sensor 12 is fixed to the fixing plate 4 by a nut. When the second rotating shaft 14 rotates one revolution, the magnet set on the second rotating shaft 14 senses the counting sensor 12 once. The counting sensor 12 sends a signal to the counter 2, and the counter 2 counts once. The number of tests can be recorded during the test.
[0043] The fixing plate 4 includes a flat plate, a raised platform, and an L-shaped plate; the raised platform and the L-shaped plate are respectively disposed on both sides of the flat plate; the L-shaped plate includes a long plate and a short plate connected to each other. The clamp fixing plate 5 is disposed above the raised platform, the driving device passes through the long plate and is disposed on the flat plate; the inductive counting device is disposed on the short plate.
[0044] The second aspect of this utility model provides a clamp reciprocating test method based on the clamp reciprocating test device, comprising the following steps:
[0045] like Figure 6As shown in Figures (a), (b), (c), and (d), the second hole on the connecting shaft 6 connects to the main shaft 9. When the drive device is activated, the first rotating shaft 13 is driven to rotate by the drive device. The first rotating shaft 13 drives the second rotating shaft 14 to rotate, the second rotating shaft 14 drives the connecting rod bearing 10, the connecting rod bearing 10 drives the main shaft 9, and the main shaft 9 drives the connecting shaft 6 to perform one reciprocating motion within the pipe clamp. The magnet on the second rotating shaft 14 senses and records the number of tests with the induction counting device. After multiple reciprocating motions, the reciprocating test is completed, and the wear life test data of the clamp is obtained.
[0046] It also includes a clamp retaining force test step, which is as follows:
[0047] The coupling 6 is disengaged from the main shaft 9. The first hole on the coupling 6 is connected to a push-pull force gauge to measure the holding force of the pipe clamp on the pipe after multiple reciprocating motions, thus completing the clamp holding force test.
[0048] The above test methods can be adjusted as needed.
[0049] Example 1
[0050] This embodiment provides a clamp reciprocating test device, including a drive device, a fixing plate 4, a clamp fixing plate 5, a connecting shaft 6, a connecting shaft screw 7, an inductive counting device, a guide bearing 8, a main shaft 9, a connecting rod bearing 10, a distance adjusting screw 11, a first rotating shaft 13, a second rotating shaft 14, and a magnet disposed on the second rotating shaft 14; the drive device includes a drive motor speed control box 1 and a drive motor 3, and the inductive counting device includes a counting sensor 12 and a counter 2; the fixing plate 4 includes a flat plate, a raised platform, and an L-shaped plate, and the L-shaped plate includes a long plate and a short plate connected to each other.
[0051] The raised platform and L-shaped plate are respectively set at both ends of the flat plate. The clamp fixing plate 5 is set on the raised platform by bolts. The connecting shaft 6 is fixed on the clamp fixing plate 5 by bolts. The pipe clamp clamps the connecting shaft 6. The connecting shaft 6 has a first hole and a second hole. The first hole is connected to the push-pull force gauge to measure the holding force of the clamp. The second hole is connected to one end of the main shaft 9 to conduct reciprocating tests to obtain the wear life test data of the clamp. The connecting shaft 6 and the main shaft 9 are connected by the connecting screw 7 set on the second hole.
[0052] The guide bearing 8 is installed on the lower surface of the long plate of the L-shaped plate. The guide bearing 8 is fixed to the lower surface of the long plate of the L-shaped plate by bolts. The main shaft 9 passes through the guide bearing 8, and the guide bearing 8 ensures that the direction of movement of the main shaft 9 does not deviate.
[0053] The other end of the main shaft 9 is connected to one end of the connecting rod bearing 10. The other end of the main shaft 9 and the connecting rod bearing 10 are fixed together by bolts. The other end of the connecting rod bearing 10 is connected to the second rotating shaft 14. The second rotating shaft 14 is fixed together with the connecting rod bearing 10 by the distance adjustment screw 11. The first rotating shaft 13 and the second rotating shaft 14 are mortised and tenoned together. The first rotating shaft 13 is connected to the drive shaft of the drive motor 3.
[0054] like Figure 8 and Figure 9 As shown, the first rotating shaft 13 has a rectangular upper part and a trapezoidal lower part. A non-through groove is formed at one end of the first rotating shaft 13 for tenon-and-mortise connection with the shaft in the drive motor 3. The second rotating shaft 14 includes an integral rectangular block and a circular protrusion on the surface of the rectangular block. A trapezoidal groove is formed on the rectangular block, which matches the trapezoidal lower part of the first rotating shaft 13 to achieve a tenon-and-mortise connection. A circular hole is formed through the circular protrusion for connection with the connecting rod bearing 10 via a distance adjustment screw 11.
[0055] The drive motor speed control box 1 and the drive motor 3 are mounted on the flat plate. Figure 7 As shown, the drive shaft of the drive motor 3 is connected to the drive gear in the gear box. The drive gear meshes with another gear in the gear box. This gear is connected to a shaft that passes through the long plate and is tenon-jointed to the first rotating shaft 13 located under the long plate. The drive motor speed control box 1 and the drive motor 3 are fixed to the fixed plate 4 by bolts, and the two are connected by a cable.
[0056] The counting sensor 12 and the counter 2 are fixed to the fixed plate 4 by nuts. The counting sensor 12 and the counter 2 are electrically connected. The counting sensor 12 is set on the short plate of the fixed plate 4 and is sensed by the magnet set on the second rotating shaft 14.
[0057] Example 2
[0058] Based on Example 1, this embodiment provides a clamp holding force testing method, including the following steps: clamp holding force testing step, the connecting shaft 6 is disengaged from the main shaft 9, and a push-pull force gauge is connected to the first hole on the connecting shaft 6 to measure the holding force of the pipe clamp on the pipe after multiple reciprocating motions, thus completing the clamp holding force test.
[0059] Example 3
[0060] Based on Example 1, this embodiment provides a clamp reciprocating test method, including the following steps:
[0061] S1: Wear life test of the clamp. The second hole on the connecting shaft 6 is connected to the main shaft 9. The drive device is started, and the first rotating shaft 13 is driven to rotate by the drive device. The first rotating shaft 13 drives the second rotating shaft 14 to rotate. The second rotating shaft 14 drives the connecting rod bearing 10, the connecting rod bearing 10 drives the main shaft 9, and the main shaft 9 drives the connecting shaft 6 to make one reciprocating motion inside the pipe clamp. The magnet on the second rotating shaft 14 senses and records the number of tests with the induction counting device. After multiple reciprocating motions, the reciprocating test is completed, and the wear life test data of the clamp is obtained.
[0062] Example 4
[0063] Based on Example 1, this embodiment provides a clamp reciprocating test method, including the following steps:
[0064] S1: Wear life test of the clamp. The second hole on the connecting shaft 6 is connected to the main shaft 9. When the drive device is started, the first rotating shaft 13 is driven to rotate. The first rotating shaft 13 drives the second rotating shaft 14 to rotate. The second rotating shaft 14 drives the connecting rod bearing 10. The connecting rod bearing 10 drives the main shaft 9. The main shaft 9 drives the connecting shaft 6 to make one reciprocating motion inside the pipe clamp. The magnet on the second rotating shaft 14 senses and records the number of tests with the induction counting device. After multiple reciprocating motions, the reciprocating test is completed, and the wear life test data of the clamp is obtained.
[0065] S2: Clamp holding force test procedure: Connecting shaft 6 is disconnected from main shaft 9. The first hole on connecting shaft 6 is connected to a push-pull force gauge to measure the holding force of the pipe clamp on the pipe after multiple reciprocating motions, thus completing the clamp holding force test.
[0066] Example 5
[0067] Based on Example 1, this embodiment provides a clamp reciprocating test method, including the following steps:
[0068] S1: Wear life test of the clamp. The second hole on the connecting shaft 6 is connected to the main shaft 9. The drive device is started. The first rotating shaft 13 is driven by the drive device to rotate. The first rotating shaft 13 drives the second rotating shaft 14 to rotate. The second rotating shaft 14 drives the connecting rod bearing 10. The connecting rod bearing 10 drives the main shaft 9. The main shaft 9 drives the connecting shaft 6 to make one reciprocating motion inside the pipe clamp.
[0069] S2: Clamp holding force test procedure: Connecting shaft 6 is disconnected from main shaft 9. The first hole on connecting shaft 6 is connected to a push-pull force gauge to measure the holding force of the pipe clamp on the pipe after one reciprocating motion, thus completing the clamp holding force test.
[0070] S3: The magnet on the second rotating shaft 14 and the induction counting device induction record the number of tests. After multiple reciprocating motions and the clamp holding force test after each reciprocating motion, the reciprocating test is completed, and the wear life test data of the clamp is obtained.
[0071] This embodiment, by connecting to a push-pull force gauge, can effectively simulate the impact of pipe clamp displacement caused by engine vibration on the pipe clamp in actual use, and measure the holding force of the pipe clamp on the pipe after how many reciprocating motions. This can effectively provide test data for engine design and reduce the failure rate of engine power pipe clamps during operation.
[0072] The above content is only for illustrating the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. Any modifications made to the technical solution based on the technical concept proposed in this utility model shall fall within the scope of protection of the claims of this utility model.
Claims
1. A clamp reciprocating test device characterized by comprising: The utility model provides a kind of test device for the test of push-pull force, including connecting shaft (6), the first hole and the second hole are opened in the connecting shaft (6), first hole is connected with push-pull force gauge, the second hole is connected with one end of main shaft (9), the other end of the main shaft (9) is connected with one end of connecting rod bearing (10), the other end of the connecting rod bearing (10) is connected with second rotating shaft (14), the second rotating shaft (14) is connected with first rotating shaft (13), the first rotating shaft (13) is connected with driving device, the lower of the connecting shaft (6) is provided with clamp fixing plate (5), the lower of the clamp fixing plate (5) is provided with fixed plate (4), the fixed plate (4) is provided with inductive counting device, the second rotating shaft (14) is provided with magnet, and the inductive counting device and magnet inductive record the number of times of test.
2. The clamping reciprocating test device according to claim 1, characterized by The connecting shaft (6) is connected with the main shaft (9) by the connecting shaft screw (7) arranged on the second hole.
3. The clamping reciprocating test device according to claim 1, wherein The second rotating shaft (14) and the connecting rod bearing (10) are connected by distance adjusting screw (11), and the distance adjusting screw (11) can also adjust the distance between the first rotating shaft (13) and the second rotating shaft (14), so as to adjust the distance of reciprocating motion.
4. The clamping reciprocating test device of claim 1, wherein The main shaft (9) is provided with guide bearing (8), and the guide bearing (8) cooperates with the main shaft (9) to ensure the straightness of the connecting shaft (6) in the clamp.
5. The clamping reciprocating test device of claim 1, wherein The inductive counting device includes counting sensor (12) and counter (2), and the counting sensor (12) is electrically connected with the counter (2).
6. The clamping reciprocating test device of claim 1, wherein The driving device includes driving motor (3), and the driving shaft on the driving motor (3) is connected with the first rotating shaft (13); the driving shaft rotates to make the first rotating shaft (13) rotate, so as to drive the connecting shaft (6) to reciprocate.
7. The clamping reciprocating test device of claim 1, wherein The fixed plate (4) includes flat plate, convex platform and L-shaped plate, the convex platform and the L-shaped plate are arranged at two ends of the flat plate respectively, and the L-shaped plate includes long plate and short plate connected with each other.
8. The clamping reciprocating test device according to claim 7, characterized by The clamp fixing plate (5) is arranged above the convex platform, the driving device penetrates through the long plate and is arranged on the flat plate, and the inductive counting device is arranged on the short plate.