Workpiece test-based multi-station electrostatic test bench

Abstract

The invention discloses a workpiece test-based multi-station electrostatic test bench, and relates to the technical field of test benches, the workpiece test-based multi-station electrostatic test bench comprises a base, the top surface of the base is fixedly connected with an electric telescopic rod, the top surface of the electric telescopic rod is fixedly connected with a test bench body, and the top surface of the test bench body is provided with an auxiliary clamping mechanism for clamping a workpiece; an auxiliary cleaning mechanism used for cleaning the testboard top is arranged on the side face of the testboard body, an auxiliary clamping mechanism can inflate a deformed clamping piece, a static test requires that a clamped workpiece is kept stable in the testing process, workpiece displacement caused by deformation of the clamping piece is avoided, and therefore the accuracy of a testing result is ensured, and the testing efficiency is improved. The deformed clamping device cannot uniformly apply clamping force, the auxiliary cleaning mechanism can continuously clean the electrostatic test board, the cleaning efficiency is greatly improved, the cleaning roller can ensure that the surface of the whole test board is uniformly cleaned in the cleaning process, and non-uniform or missing areas generated during manual cleaning are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of test benches, and specifically relates to a multi-station electrostatic test bench for workpiece testing. Background Art

[0002] An electrostatic test bench, also known as an electrostatic discharge test bench or an ESD (Electrostatic Discharge) test bench, is a device specifically used to test and evaluate the electrostatic discharge (ESD) characteristics of the surface of an object. It is widely used in industries such as electronics, semiconductors, and precision instrument manufacturing to ensure that products are not damaged by electrostatic discharge in an electrostatic-sensitive (ES-sensitive) environment.

[0003] When performing an electrostatic test on a workpiece, the workpiece is usually clamped by a clamping member made of rubber. However, the rubber clamping member will deform during the clamping process. During the deformation process of the clamping member, the contact area and pressure with the workpiece will change, thereby affecting the contact resistance. The change in contact resistance may interfere with the accuracy of the electrostatic test. The deformation will change the electrical conductivity of the clamping device, thereby affecting the speed at which charges leak from the workpiece to the clamping device. If the charge leakage rate decreases, it will lead to inaccurate test results. The rubber material itself has a certain degree of insulation, and the deformation will increase the thickness of the insulation layer between the workpiece and the clamping device, resulting in electrostatic accumulation, which will cause electrostatic discharge before or during the test, affecting the test results. Since only the clamping surface of a general clamp is made of rubber, although the metal part of the clamping member helps to provide structural strength, it will generate static electricity when contacting the workpiece. If the static charges on the metal surface are opposite to the static charges on the workpiece, a discharge phenomenon will occur when the two come into contact. This discharge will not only damage the surface of the workpiece but also cause damage to the test equipment, affecting the accuracy of the test. A clamping member made of an overall rubber material can provide electrostatic control from the contact point to the entire clamping member, reducing the risk of static electricity generation. The rubber clamping device cannot maintain a stable clamping force after deformation, which will cause the workpiece to move or become loose during the test, affecting the repeatability and consistency of the test. The rubber material is sensitive to temperature changes, and temperature changes may cause the rubber to deform, thereby affecting the clamping effect and test results.

[0004] Since the surface of the electrostatic test bench has static electricity and the dust particles carry tiny charges, the dust is easily adsorbed on the test bench surface by static electricity. And due to the dry air in the operating environment, the generation and accumulation of static electricity will be more obvious, thus increasing the possibility of dust adsorption. Therefore, before testing the workpiece, it is usually necessary to clean the test bench. During the cleaning process, the operator will accumulate static electricity by contacting the ground or other non-conductive objects. If directly contacting the electrostatic test bench, it will interfere with the equipment or the ongoing test. If an inappropriate cleaning agent is used, it will damage the surface material of the test bench or leave residues, affecting the performance of the test bench and the accuracy of the test results. And during manual cleaning, due to different operating techniques of the operator, it will cause unnecessary wear or damage to the test bench. Especially for precision electronic components, manual cleaning cannot completely remove all pollutants on the test bench, such as dust, grease or chemical residues, which will affect the accuracy of the test. During the cleaning process, if sharp tools or chemicals are used improperly, it will cause harm or damage to the test bench. If the cleaning tools or cleaning agents are not properly disposed of, it will leave pollutants on the test bench, resulting in cross-contamination. Due to improper cleaning or the use of inappropriate cleaning agents, it will shorten the service life of the test bench and increase the cost of maintenance and component replacement.

[0005] Therefore, a multi-station electrostatic test bench for workpiece testing is proposed to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to provide a multi-station electrostatic test bench for workpiece testing to solve the problems that in the prior art, during the deformation process of the clamping member, the contact area and pressure with the workpiece will change, thus affecting the contact resistance, the change of the contact resistance may interfere with the accuracy of the electrostatic test, the deformation will change the conductive performance of the clamping device, thus affecting the speed of charge leakage from the workpiece to the clamping device, and during manual cleaning, due to different operating techniques of the operator, it will cause unnecessary wear or damage to the test bench, especially for precision electronic components, and manual cleaning cannot completely remove all pollutants on the test bench.

[0007] To achieve the above object, the present invention provides the following technical solution: A multi-station electrostatic test bench for workpiece testing, comprising: a base, a top surface of the base is fixedly connected with an electric telescopic rod, a top surface of the electric telescopic rod is fixedly connected with a test bench body, a top surface of the test bench body is provided with an auxiliary clamping mechanism for clamping a workpiece, and a side surface of the test bench body is provided with an auxiliary cleaning mechanism for cleaning the test bench surface;

[0008] The auxiliary clamping mechanism includes a first arc-shaped plate. A reciprocating lead screw for driving the movement of the first arc-shaped plate is rotatably connected to the arc-shaped surface of the first arc-shaped plate, and the reciprocating lead screw is threadedly connected to one end of the top surface of the test bench body.

[0009] The auxiliary cleaning mechanism includes an L-shaped support plate. A first rotating disk for driving the operation of the auxiliary cleaning mechanism is rotatably connected to the side of the L-shaped support plate close to the test bench body.

[0010] Preferably, the auxiliary clamping mechanism further includes a second arc-shaped plate. The first arc-shaped plate is slidably connected to the top surface of the test bench body. The second arc-shaped plate is rotatably connected to the side of the first arc-shaped plate away from the reciprocating lead screw, and a clamping block is rotatably connected to the side of the second arc-shaped plate away from the first arc-shaped plate.

[0011] Preferably, an inflation device is fixedly connected to the bottom surface of the inner wall of the clamping block. An auxiliary plate is fixedly connected to the inside of the clamping block. Two touch plates are fixedly connected to the inside of the clamping block, and the two touch plates are located on both sides of the auxiliary plate. An airbag is fixedly connected to the inside of the clamping block.

[0012] Preferably, a third arc-shaped plate is fixedly connected to one end of the test bench body away from the first arc-shaped plate. A fourth arc-shaped plate is rotatably connected to the side of the third arc-shaped plate close to the first arc-shaped plate.

[0013] Preferably, the auxiliary cleaning mechanism further includes a rack. The L-shaped support plate is fixedly connected to the arc surface of the first arc-shaped plate. The rack is fixedly connected to the side of the test bench body close to the L-shaped support plate. A placement groove body is fixedly connected to the bottom surface of the side of the test bench body away from the first arc-shaped plate. A gear is fixedly connected to the side of the first rotating disk away from the L-shaped support plate, and a cleaning roller is fixedly connected to the side of the gear away from the first rotating disk.

[0014] Preferably, a second rotating disk is rotatably connected to the side of the L-shaped support plate close to the first rotating disk. A dust suction fan blade is fixedly connected to the side of the second rotating disk away from the L-shaped support plate. An L-shaped connecting plate is fixedly connected to the side of the L-shaped support plate close to the dust suction fan blade. A dust suction head is fixedly connected to one end of the L-shaped connecting plate away from the L-shaped support plate. A dust suction pipe is fixedly connected to the arc surface of the dust suction head in a communicating manner, and one end of the dust suction pipe away from the dust suction head is fixedly connected to a collection groove body in a communicating manner.

[0015] Preferably, the touch plate is electrically connected to the inflation device.

[0016] Preferably, the gear is meshed with the rack.

[0017] Compared with the prior art, the present invention provides a multi-station electrostatic test bench for workpiece testing, which has the following beneficial effects:

[0018] 1. Through the mutual cooperation among the auxiliary plate, the touch plate, the inflation device and the airbag in the auxiliary clamping mechanism, the deformed clamping piece can be inflated. The electrostatic test requires that the clamped workpiece remain stable during the test to avoid workpiece displacement caused by the deformation of the clamping device, thus ensuring the accuracy of the test results. The elasticity of the airbag can evenly disperse the pressure of the workpiece on the clamping block, avoiding the deformation or damage of the clamping block caused by excessive local pressure. This helps to maintain the shape and structural stability of the clamping block, ensuring the stability and safety of the workpiece during the test. Through the elastic adjustment of the airbag, it can more precisely adapt to workpieces of different shapes and sizes, improving the clamping accuracy and reliability. The buffering effect of the airbag can reduce the surface damage of the workpiece or the deformation of the clamping block caused by irregular pressure distribution. This not only protects the workpiece from damage but also extends the service life of the clamping piece. In the electrostatic test, the same workpiece needs to be tested multiple times to ensure the reliability of the data. By inflating the airbag to restore the clamping device, the consistency of each test condition can be ensured, facilitating repeated testing.

[0019] 2. Through the mutual cooperation among the first arc-shaped plate, the second arc-shaped plate and the clamping block in the auxiliary clamping mechanism, it can adapt to workpieces of different shapes and sizes for clamping. Thus, the fixture can be made more flexible, capable of adapting to diverse production requirements, reducing the machining errors caused by inaccurate positioning. Since the auxiliary block can be quickly adjusted to adapt to different workpieces, the time for replacing the fixture can be reduced, thereby improving production efficiency. Using adjustable auxiliary blocks can reduce the need for a variety of special fixtures, thus reducing the manufacturing cost and maintenance cost of the fixtures. Appropriate clamping can reduce the stress on the workpiece during the machining process, reducing the risk of workpiece deformation or damage. Since the frequency of replacing special fixtures is reduced, the workload of the operator is reduced, and the working environment is improved. Precise clamping and a stable machining process contribute to improving the machining quality of the product and reducing the defective rate.

[0020] 3. Through the mutual cooperation among the cleaning roller, the second rotating disk, the dust suction head, the dust suction fan blade and the dust suction pipe in the auxiliary cleaning mechanism, the electrostatic test bench can be continuously cleaned without manual intervention, greatly improving the cleaning efficiency. The cleaning roller can ensure that the entire surface of the test bench is evenly cleaned during the cleaning process, avoiding uneven or missed areas generated during manual cleaning and reducing the risk of incomplete cleaning or surface damage caused by improper manual operation. During the cleaning process of the electrostatic-sensitive test bench, using the cleaning roller can avoid electrostatic discharge caused by direct contact or wiping, thus protecting the equipment from electrostatic damage. Description of the Drawings

[0021] Figure 1 It is a three-dimensional side view of the overall structure of the present invention;

[0022] Figure 2 Front view of the overall structure of the present invention;

[0023] Figure 3 Schematic structural diagram of the auxiliary clamping mechanism of the present invention;

[0024] Figure 4 Schematic internal structure diagram of the clamping block of the present invention;

[0025] Figure 5 Schematic structural diagram of the auxiliary cleaning mechanism of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of the structure at A in;

[0027] Figure 7 Schematic internal structure diagram of the dust suction head of the present invention.

[0028] In the figure:

[0029] 1. Base; 2. Electric telescopic rod; 3. Test bench body;

[0030] Auxiliary clamping mechanism: 401. Reciprocating lead screw; 402. First arc plate; 403. Second arc plate; 404. Clamping block; 405. Third arc plate; 406. Fourth arc plate; 407. Auxiliary plate; 408. Touch plate; 409. Inflation device; 410. Airbag;

[0031] Auxiliary cleaning mechanism: 501. L-shaped support plate; 502. Rack; 503. First rotating disk; 504. Gear; 505. Cleaning roller; 506. Second rotating disk; 507. Dust suction head; 508. Dust suction fan blade; 509. Dust suction pipe; 510. L-shaped connecting plate; 511. Collection tank body; 512. Placing tank body. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Next, the present invention will be further described in detail according to the drawings and embodiments.

[0034] Embodiment

[0035] Please refer to Figures 1 to 4 as shown:

[0036] To solve the problems mentioned in the technical solution, an embodiment of the present application provides a multi-station electrostatic test bench for workpiece testing, including: a base 1, the top surface of the base 1 is fixedly connected with an electric telescopic rod 2, the top surface of the electric telescopic rod 2 is fixedly connected with a test bench body 3, the top surface of the test bench body 3 is provided with an auxiliary clamping mechanism for clamping the workpiece, and the side surface of the test bench body 3 is provided with an auxiliary cleaning mechanism for cleaning the test bench surface;

[0037] The auxiliary clamping mechanism includes a first arc-shaped plate 402, a reciprocating screw rod 401 for driving the first arc-shaped plate 402 to move is rotatably connected to the arc-shaped surface of the first arc-shaped plate 402, and the reciprocating screw rod 401 is threadedly connected to one end of the top surface of the test bench body 3;

[0038] The auxiliary clamping mechanism further includes a second arc-shaped plate 403, the first arc-shaped plate 402 is slidably connected to the top surface of the test bench body 3, the second arc-shaped plate 403 is rotatably connected to the surface of the first arc-shaped plate 402 away from the reciprocating screw rod 401, and a clamping block 404 is rotatably connected to the surface of the second arc-shaped plate 403 away from the first arc-shaped plate 402.

[0039] The bottom surface of the inner wall of the clamping block 404 is fixedly connected with an inflation device 409, an auxiliary plate 407 is fixedly connected to the inside of the clamping block 404, two touch plates 408 are fixedly connected to the inside of the clamping block 404, and the two touch plates 408 are located on both sides of the auxiliary plate 407, and an airbag 410 is fixedly connected to the inside of the clamping block 404.

[0040] A third arc-shaped plate 405 is fixedly connected to one end of the test bench body 3 away from the first arc-shaped plate 402, and a fourth arc-shaped plate 406 is rotatably connected to the surface of the third arc-shaped plate 405 close to the first arc-shaped plate 402.

[0041] Wherein: a chute is provided on the top surface of the test bench body 3 and is slidably adapted to the first arc-shaped plate 402, the clamping block 404 is made of rubber material, the auxiliary plate 407 is made of elastic material and can be bent, the touch plate 408 is electrically connected to the inflation device 409, when the auxiliary plate 407 touches the touch plate 408, the touch plate 408 controls the driving device, and the driving device drives the inflation device 409 to inject air into the airbag 410. The surface of the fourth arc-shaped plate 406 close to the first arc-shaped plate 402 is also rotatably connected to the third arc-shaped plate 405.

[0042] In the prior art, when performing an electrostatic test on a workpiece, the workpiece is usually clamped by a clamping member made of rubber. However, the rubber clamping member will deform during the clamping process. During the deformation of the clamping member, the contact area and pressure with the workpiece will change, thereby affecting the contact resistance. The change in the contact resistance may interfere with the accuracy of the electrostatic test. The deformation will change the electrical conductivity of the clamping device, thereby affecting the speed at which charge leaks from the workpiece to the clamping device. If the charge leakage rate decreases, it will lead to inaccurate test results. The rubber material itself has a certain degree of insulation, and the deformation will increase the thickness of the insulating layer between the workpiece and the clamping device, resulting in electrostatic accumulation, which will cause electrostatic discharge before or during the test and affect the test results. Compared with the prior art, through the mutual cooperation among the auxiliary plate 407, the touch plate 408, the inflation device 409, and the airbag 410 in the auxiliary clamping mechanism, the deformed clamping member can be inflated. The electrostatic test requires the workpiece to be clamped stably during the test to avoid the displacement of the workpiece caused by the deformation of the clamping device, thereby ensuring the accuracy of the test results. However, the deformed clamping device cannot apply the clamping force evenly, which will affect the uniformity and repeatability of the test. By restoring the original shape of the clamping device, it can ensure that the clamping force is evenly distributed and improve the accuracy of the test data. The deformation of the clamping device will change the contact area and pressure distribution between it and the workpiece, increasing the risk of electrostatic leakage. Restoring the original shape can reduce this risk and ensure the reliability of the electrostatic test. The deformed clamping device will cause additional pressure on the surface of the workpiece, resulting in surface damage or contamination.

[0043] Further embodiment: Please refer to Figures 5 to 7 as shown in

[0044] The auxiliary cleaning mechanism includes an L-shaped support plate 501. A first rotating disk 503 for driving the operation of the auxiliary cleaning mechanism is rotatably connected to one side of the L-shaped support plate 501 close to the test bench body 3.

[0045] The auxiliary cleaning mechanism further includes a rack 502. The L-shaped support plate 501 is fixedly connected to the arc surface of the first arc plate 402. The rack 502 is fixedly connected to one side of the test bench body 3 close to the L-shaped support plate 501. A placement groove body 512 is fixedly connected to the bottom surface of the test bench body 3 on the side away from the first arc plate 402. A gear 504 is fixedly connected to the side of the first rotating disk 503 away from the L-shaped support plate 501. A cleaning roller 505 is fixedly connected to the side of the gear 504 away from the first rotating disk 503.

[0046] One side of the L-shaped support plate 501 close to the first rotating disk 503 is rotatably connected to a second rotating disk 506. One side of the second rotating disk 506 away from the L-shaped support plate 501 is fixedly connected to a dust suction fan blade 508. One side of the L-shaped support plate 501 close to the dust suction fan blade 508 is fixedly connected to an L-shaped connecting plate 510. One end of the L-shaped connecting plate 510 away from the L-shaped support plate 501 is fixedly connected to a dust suction head 507. A dust suction pipe 509 is fixedly communicated with the arc surface of the dust suction head 507. One end of the dust suction pipe 509 away from the dust suction head 507 is fixedly communicated with a collection tank body 511.

[0047] Wherein: a soft brush is arranged on the outer surface of the cleaning roller 505. A slot hole is formed in the plane of the placement tank body 512, and the slot hole is adapted to the size of the cleaning roller 505, so as to facilitate the storage of the cleaning roller 505.

[0048] In the prior art, during the cleaning process, an operator will accumulate static electricity due to contact with the ground or other non-conductive objects. If directly contacting an electrostatic test bench, it will interfere with the equipment or the ongoing test. If an inappropriate cleaning agent is used, it will damage the surface material of the test bench or leave residues, affecting the performance of the test bench and the accuracy of the test results. Moreover, during manual cleaning, due to the excessive force exerted by the operator during cleaning, the friction with the surface of the test bench increases, resulting in wear, which will cause unnecessary wear or damage to the test bench, especially for precision electronic components. Compared with the prior art, through the mutual cooperation among the cleaning roller 505, the second rotating disk 506, the dust suction head 507, the dust suction fan blade 508 and the dust suction pipe 509 in the auxiliary cleaning mechanism, the electrostatic test bench can be continuously cleaned without manual intervention, greatly improving the cleaning efficiency. The cleaning roller 505 can ensure that the entire surface of the test bench is evenly cleaned during the cleaning process, avoiding uneven or missed areas generated during manual cleaning, and reducing the risk of incomplete cleaning or surface damage caused by improper human operation. During the cleaning process of an electrostatic-sensitive test bench, using the cleaning roller 505 can avoid electrostatic discharge generated by direct contact or wiping, thereby protecting the equipment from electrostatic damage.

[0049] The working principle of all the contents in the above embodiments is as follows:

[0050] In the initial state: the inside of the airbag 410 is filled with gas.

[0051] The following is the working process of the auxiliary cleaning mechanism for cleaning the workbench:

[0052] During use, manually rotate the reciprocating lead screw 401. Since the reciprocating lead screw 401 is threadedly connected through the inside of the test bench body 3, and one end of the reciprocating lead screw 401 away from the test bench body 3 is rotatably connected to the first arc-shaped plate 402, that is, when the reciprocating lead screw 401 is manually rotated, it will push the first arc-shaped plate 402 to move. The movement of the first arc-shaped plate 402 drives the L-shaped support plate 501 fixedly connected to it to move together. Since the rack 502 is fixedly connected to the side of the test bench body 3 close to the L-shaped support plate 501, that is, while the movement of the L-shaped support plate 501 drives the gear 504 to move, because the gear 504 is meshed with the rack 502, that is, the gear 504 will rotate while moving. The rotation of the gear 504 drives the cleaning roller 505 fixedly connected to it to rotate, thereby cleaning the surface of the test bench body 3. Through the rotation of the cleaning roller 505, these impurities can be removed, ensuring the cleanliness of the test surface, thereby improving the accuracy and reliability of the test. Cleaning the surface of the electrostatic test bench can reduce the aging of the equipment accelerated by the accumulation of dust and impurities, and extend its service life. Cleaning the electrostatic test bench without manual intervention greatly improves the cleaning efficiency. The cleaning roller 505 gently contacts the test bench surface by rotating, reducing physical wear on the test bench surface. Manual cleaning may cause damage due to improper force or improper tool selection. The cleaning roller 505 can ensure that the entire test bench surface is evenly cleaned during the cleaning process, avoiding uneven or missed areas generated during manual cleaning, and reducing the risk of incomplete cleaning or surface damage caused by improper human operation. During the cleaning process of the electrostatic-sensitive test bench, using the cleaning roller 505 can avoid electrostatic discharge generated by direct contact or wiping, thereby protecting the equipment from electrostatic damage. Because the cleaning roller cleans the test bench surface by gently rolling, this method reduces friction, which is one of the main reasons for generating static electricity. Therefore, reducing friction can effectively reduce the generation of static electricity. The pressure applied by the cleaning roller during cleaning is uniform, avoiding the generation of static electricity due to uneven pressure. When manually wiping, due to the uneven force and speed of the operator, it is easier to generate static electricity. Therefore, during cleaning, uniform pressure will also reduce the generation of static electricity;

[0053] The rotation of the gear 504 drives the first rotating disk 503 fixedly connected thereto to rotate together. Since there is a belt driving connection between the first rotating disk 503 and the second rotating disk 506, that is, the rotation of the first rotating disk 503 drives the second rotating disk 506 to rotate, and the rotation of the second rotating disk 506 drives the dust suction fan blade 508 fixedly connected thereto to rotate, so as to collect the splashing dust generated by the dust on the top surface of the cleaning test bench body 3, and discharge the dust into the interior of the collection tank body 511 through the dust suction pipe 509 for collection. Collecting the splashing dust can reduce the suspended particles in the air, thereby improving the working environment and enhancing the comfort of the operators. The splashing of dust will cause other areas or equipment to be contaminated. By collecting the splashing dust, this secondary pollution can be avoided. Dust and impurities will adhere to various components of the electrostatic test bench, affecting the performance and service life of the equipment. Collecting the splashing dust can protect the equipment from damage. Reducing the accumulation of dust can reduce the frequency and difficulty of cleaning and maintaining the electrostatic test bench, thereby saving the maintenance cost.

[0054] Please refer to the above working process Figures 5 to 7 。

[0055] The following is the working process of the auxiliary clamping mechanism for clamping the workpiece:

[0056] During use, as known above, manually rotating the reciprocating lead screw 401 pushes the first arc-shaped plate 402 to move. Since a third arc-shaped plate 405 and a fourth arc-shaped plate 406 are provided at one end of the top surface of the test bench body 3 away from the first arc-shaped plate 402, and a clamping block 404 is also rotatably connected to the side of the fourth arc-shaped plate 406 close to the first arc-shaped plate 402, that is, the workpiece is clamped through one end of the first arc-shaped plate 402. Due to the rotation of the clamping block 404, the second arc-shaped plate 403 and the fourth arc-shaped plate 406, that is, when the shapes of the clamped workpieces are different, clamping can be carried out through the rotation of the clamping block 404, the second arc-shaped plate 403 and the fourth arc-shaped plate 406. Thus, the fixture can be made more flexible, capable of adapting to diverse production requirements, reducing the processing errors caused by inaccurate positioning. Since the auxiliary block can be quickly adjusted to adapt to different workpieces, the time for replacing the fixture can be reduced, thereby improving the production efficiency. Using adjustable auxiliary blocks can reduce the need for a variety of special fixtures, thereby reducing the manufacturing cost and maintenance cost of the fixtures. Appropriate clamping can reduce the stress on the workpiece during processing, reducing the risk of workpiece deformation or damage. Since the frequency of replacing special fixtures is reduced, the workload of the operator is reduced and the working environment is improved. Precise clamping and a stable processing process contribute to improving the processing quality of the product and reducing the defective rate;

[0057] Since the clamping block 404 is made of rubber, the clamping device made of rubber will deform during the clamping process. When the clamping block 404 deforms, since the auxiliary plate 407 is made of elastic material, the auxiliary plate 407 will deform. The deformation of the auxiliary plate 407 will touch the touch plate 408, and the touch plate 408 is electrically connected to the inflation device 409. When the auxiliary plate 407 touches the touch plate 408, the touch plate 408 controls the driving device, and the driving device drives the inflation device 409 to inject air into the airbag 410 to inflate the deformed clamping piece. When clamping some irregular workpieces, the convex surface of the workpiece squeezes the clamping block 404, and then squeezes the airbag 410 in the clamping block 404 to cause deformation. The electrostatic test requires that the workpiece be kept stable during the test to avoid workpiece displacement caused by the deformation of the clamping device, so as to ensure the accuracy of the test results. The elasticity of the airbag 410 can evenly disperse the pressure of the workpiece on the clamping block 404, avoiding deformation or damage of the clamping block 404 caused by excessive local pressure. This helps to maintain the shape and structural stability of the clamping block 404, ensuring the stability and safety of the workpiece during the test. Through the elastic adjustment of the airbag 410, it can more precisely adapt to workpieces of different shapes and sizes, improving the clamping accuracy and reliability. The buffering effect of the airbag 410 can reduce workpiece surface damage or clamping block 404 deformation caused by irregular pressure distribution. This not only protects the workpiece from damage but also extends the service life of the clamping block 404. In the electrostatic test, it is necessary to test the same workpiece multiple times to ensure the reliability of the data. By inflating the airbag 410 to restore the clamping device, the consistency of each test condition can be ensured, facilitating repeated testing.

[0058] Please refer to the above working process Figures 1 to 4 。

[0059] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station electrostatic test bench for workpiece testing, comprising: Base (1), the top surface of the base (1) is fixedly connected with an electric telescopic rod (2), and the top surface of the electric telescopic rod (2) is fixedly connected with a test bench body (3). It is characterized in that an auxiliary clamping mechanism for clamping workpieces is arranged on the top surface of the test bench body (3), and an auxiliary cleaning mechanism for cleaning the test bench surface is arranged on the side surface of the test bench body (3); The auxiliary clamping mechanism includes a first arc plate (402), and a reciprocating screw rod (401) for driving the first arc plate (402) to move is rotatably connected to the arc surface of the first arc plate (402), and the reciprocating screw rod (401) is threadedly connected to one end of the top surface of the test bench body (3); The auxiliary cleaning mechanism includes an L-shaped support plate (501), and a first rotating disk (503) for driving the operation of the auxiliary cleaning mechanism is rotatably connected to the side of the L-shaped support plate (501) close to the test bench body (3).

2. The multi-station electrostatic test bench for workpiece testing according to claim 1, wherein: The auxiliary clamping mechanism further includes a second arc plate (403), the first arc plate (402) is slidably connected to the top surface of the test bench body (3), the second arc plate (403) is rotatably connected to the side of the first arc plate (402) away from the reciprocating screw rod (401), and a clamping block (404) is rotatably connected to the side of the second arc plate (403) away from the first arc plate (402).

3. The multi-station electrostatic test bench for workpiece testing according to claim 2, characterized in that: An inflation device (409) is fixedly connected to the bottom surface of the inner wall of the clamping block (404), an auxiliary plate (407) is fixedly connected to the inside of the clamping block (404), two touch plates (408) are fixedly connected to the inside of the clamping block (404), and the two touch plates (408) are located on both sides of the auxiliary plate (407), and an air bag (410) is fixedly connected to the inside of the clamping block (404).

4. A multi-station electrostatic test bench for workpiece testing according to claim 3, characterized in that: A third arc plate (405) is fixedly connected to one end of the test bench body (3) away from the first arc plate (402), and a fourth arc plate (406) is rotatably connected to the side of the third arc plate (405) close to the first arc plate (402).

5. A multi-station electrostatic test bench for workpiece testing according to claim 1, characterized in that: The auxiliary cleaning mechanism further includes a rack (502), the L-shaped support plate (501) is fixedly connected to the arc surface of the first arc plate (402), the rack (502) is fixedly connected to the side of the test bench body (3) close to the L-shaped support plate (501), a placement groove body (512) is fixedly connected to the bottom surface of the side of the test bench body (3) away from the first arc plate (402), a gear (504) is fixedly connected to the side of the first rotating disk (503) away from the L-shaped support plate (501), and a cleaning roller (505) is fixedly connected to the side of the gear (504) away from the first rotating disk (503).

6. The multi-station electrostatic test bench for workpiece testing according to claim 5, characterized in that: One side of the L-shaped support plate (501) close to the first rotating disk (503) is rotatably connected to a second rotating disk (506). A dust suction fan blade (508) is fixedly connected to a side of the second rotating disk (506) away from the L-shaped support plate (501). An L-shaped connecting plate (510) is fixedly connected to a side of the L-shaped support plate (501) close to the dust suction fan blade (508). One end of the L-shaped connecting plate (510) away from the L-shaped support plate (501) is fixedly connected to a dust suction head (507). A dust suction pipe (509) is fixedly communicated with an arc surface of the dust suction head (507). One end of the dust suction pipe (509) away from the dust suction head (507) is fixedly communicated with a collection tank body (511).

7. A multi-station electrostatic test bench for workpiece testing according to claim 3, characterized in that: The touch plate (408) is electrically connected to the inflation device (409).

8. A multi-station electrostatic test bench for workpiece testing according to claim 5, characterized in that: The gear (504) is meshed with the rack (502).

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