Polymer soft package battery secondary sealing edge voltage testing mechanism

Abstract

The utility model discloses a polymer soft package battery two-sealing test edge voltage mechanism, which comprises two opposite test stations arranged at an interval, and any one test station is provided with a test probe assembly. The sliding platform is arranged in a gap between the two test stations; the two shaping mechanisms are oppositely arranged on the sliding platform in a spaced mode, any shaping mechanism comprises a shaping platform, four shaping assemblies and a bayonet, and a square and size-adjustable positioning shaping area limited by the four shaping assemblies is formed on the shaping platform; the to-be-tested battery is positioned in the positioning and shaping area by the four shaping assemblies during shaping, and the bayonet is arranged corresponding to the side, away from the positive tab, of the negative tab of the to-be-tested battery in the positioning and shaping area or the top sealing edge of the side, away from the negative tab, of the positive tab and can move towards or away from the positioning and shaping area. As the hardness of the top sealing edge of the edge area is high, the aluminum plastic film is not easy to bend when the bayonet pierces, and the problem that detection cannot be carried out due to poor contact is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy technology field, concretely relates to a polymer soft package battery two seal test edge voltage mechanism. BACKGROUND

[0002] Lithium ion batteries have the advantages of high specific energy, multiple cycle times and long storage time, among which lithium ion soft package batteries are more and more widely applied in the field of portable mobile devices due to the advantages of large capacity, good safety performance, small volume and flexible size design.

[0003] The polymer soft package battery is a battery using aluminum plastic packaging film as packaging material, mainly including a battery cell, a positive tab and a negative tab respectively electrically connected to the battery cell, and an aluminum plastic film (the aluminum plastic film is a three-layer composite layer, from outside to inside, ON / AL / CPP (outer nylon layer / intermediate aluminum foil layer / inner heat sealing layer)).

[0004] When the aluminum plastic film is punched, it is easy to be damaged at the four corners. At this time, the aluminum layer will be short-circuited with the tab, causing the aluminum foil to corrode and further causing the battery to leak, swell, and have low voltage and a series of problems. Therefore, it is necessary to test the edge voltage to screen the qualified batteries. Currently, an edge voltage testing mechanism is usually used for testing, which mainly includes a bayonet that can pierce the outer layer of the battery and contact the intermediate aluminum foil layer to realize conduction during testing. However, due to the softness of the intermediate top sealing edge, the top sealing edge is easy to bend when the bayonet pierces, resulting in the bayonet not being able to pierce the aluminum plastic film and not being able to contact the aluminum foil layer, which cannot form conduction, causing poor contact and further unable to detect the edge voltage or low detection efficiency. In addition, the existing edge voltage testing mechanism is easy to pierce the top sealing edge, which may cause liquid leakage. In addition, the existing edge voltage testing mechanism usually has only one test station, and the test structure is simple but the test efficiency is low. Therefore, the utility model comes into being. UTILITY MODEL CONTENTS

[0005] In view of at least one of the above technical problems, the utility model aims to provide a polymer soft package battery two seal test edge voltage mechanism, which contacts the bayonet on the outside of one of the positive and negative tabs of the battery. Due to the hardness of the edge region, the aluminum plastic film is not easy to bend when the bayonet pierces, solving the problem of poor contact in the prior art.

[0006] The technical solution of the utility model is:

[0007] The utility model aims to provide a polymer soft package battery two seal test edge voltage mechanism, which includes:

[0008] Two opposite and spaced test stations, any of which is provided with a test probe assembly vertically movable;

[0009] A sliding platform arranged in the space between the two test stations and capable of moving towards or away from any of the test stations;

[0010] Two shaping mechanisms arranged opposite and spaced on the sliding platform along the direction of displacement of the sliding platform, any of which comprises a shaping platform, four shaping assemblies arranged on the shaping platform and spaced in the circumferential direction and at least one of which is capable of moving towards or away from the other ones, and a bayonet arranged on one side of the shaping platform, the shaping platform being formed with a square positioning and shaping area defined by the four shaping assemblies, the battery to be tested being positioned in the positioning and shaping area by the four shaping assemblies during shaping, the bayonet being arranged corresponding to the top sealing edge of the side of the battery to be tested in the positioning and shaping area away from the positive or negative tab and being capable of being driven to move towards or away from the positioning and shaping area.

[0011] Preferably, any of the test probe assemblies comprises:

[0012] A fixed frame extending vertically;

[0013] A fixed plate having one end fixed on the side of the fixed frame and the other end extending horizontally outward;

[0014] A mechanical claw arranged on the bottom surface of the fixed plate and capable of vertically extending and retracting and rotating around a vertical line, the clamping part of the mechanical claw being implemented as a plate block arranged in the horizontal direction and having a plurality of vertical through holes;

[0015] Two test probes arranged opposite and spaced on the clamping part of the mechanical claw in the vertical direction;

[0016] A limiting block arranged on one side of the clamping part and extending vertically, the limiting block being adapted to press on the upper surface of the position of the battery to be tested pierced by the bayonet during testing.

[0017] Preferably, the bottom end of the limiting block is provided with a recess on the side facing the bayonet during testing, the bayonet penetrating into the recess and piercing into the soft package battery.

[0018] Preferably, the four shaping assemblies include two fixed shaping assemblies fixed on the shaping platform and two movable shaping assemblies movable relative to the shaping platform, any of the fixed shaping assemblies includes a fixed shaping plate, any of the movable shaping assemblies includes a movable shaping plate movably arranged on the shaping platform and a shaping driving member arranged at the bottom of the shaping platform and connected with the movable shaping plate, and the two fixed shaping plates are arranged adjacent to each other, the two movable shaping plates are also arranged adjacent to each other, and the two fixed shaping plates and the two movable shaping plates define the positioning and shaping area.

[0019] Preferably, the bayonet is arranged at the outer side of the fixed shaping plate corresponding to the bayonet, and the fixed shaping plate corresponding to the bayonet is provided with an avoiding gap at a position corresponding to the bayonet.

[0020] During the test, the positive and negative electrode ears of the top sealing edge of the battery to be tested are respectively arranged on the upper surface of the fixed shaping plate corresponding to the bayonet.

[0021] Preferably, the shaping platform is provided with a plurality of connecting holes, any of the fixed shaping plates is provided with a first adjusting groove extending along the respective width direction, and any of the fixed shaping plates is connected with the shaping platform by penetrating the first adjusting groove on the fixed shaping plate and the connecting hole on the shaping platform with a first connecting member.

[0022] Preferably, any of the movable shaping plates is provided with a second adjusting groove extending along the respective length direction, and any of the movable shaping plates is connected with the shaping platform by penetrating the second adjusting groove on the movable shaping plate and the connecting hole on the shaping platform with a second connecting member.

[0023] Preferably, the sliding platform includes two slide rails arranged opposite to each other and spaced apart in the direction perpendicular to the sliding direction, two slide plates arranged opposite to each other and spaced apart on the two slide rails, and a sliding driving member arranged at the outer side of the slide rails and used for driving the two slide plates to slide back and forth along the slide rails.

[0024] The two shaping mechanisms are respectively fixed on the upper sides of the two slide plates through a plurality of supporting columns.

[0025] Preferably, a connecting plate is arranged between the two slide plates, the number of the sliding driving members is one, and the driving end of the sliding driving member is connected with one of the slide plates to drive the two adjusting mechanisms to slide back and forth between the two test stations.

[0026] Compared with the prior art, the utility model has the advantages that:

[0027] The utility model discloses a polymer soft package battery two seal test edge voltage mechanism, and the bayonet contacts the outside of one of the positive and negative pole lug of the battery, and because the hardness of the top seal edge of the edge area is strong, the aluminum plastic film is not easy to bend when the bayonet is stabbed, and the problem that the existing technology cannot be detected due to poor contact is solved. In addition, the limiting block that the bayonet on the top seal edge is pressed into the area above the aluminum plastic film is added during testing, which can solve the problem of liquid leakage caused by the bayonet stabbing the top seal edge. Two test stations are provided, and a sliding platform is arranged, and the two shaping mechanisms are driven to reciprocate and switch between the two test stations through the sliding platform, so that the testing of two batteries can be realized in one test operation, and the structure is simple and the efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] The utility model will be further described below in combination with the drawings and examples:

[0029] Figure 1 It is the front view structural schematic drawing of polymer soft package battery two seal test edge voltage mechanism of the utility model embodiment;

[0030] Figure 2 It is the three-dimensional structure schematic drawing of polymer soft package battery two seal test edge voltage mechanism of the utility model embodiment;

[0031] Figure 3 It is the structure schematic drawing of any shaping mechanism of polymer soft package battery two seal test edge voltage mechanism of the utility model embodiment;

[0032] Figure 4 It is the structure schematic drawing of the specific position of the bayonet stabbing the top seal edge of the battery to be tested of polymer soft package battery two seal test edge voltage mechanism of the utility model embodiment;

[0033] Figure 5 It is the structure schematic drawing of the test probe assembly of polymer soft package battery two seal test edge voltage mechanism of the utility model embodiment;

[0034] Figure 6 It is Figure 5 The partial close-up view of middle A part.

[0035] Wherein: 10, test probe assembly; 11, fixed frame; 12, fixed plate; 13, mechanical claw; 131, clamping claw part; 132, driving body; 14, test probe; 15, limiting block; 151, avoiding groove; 20, sliding platform; 21, sliding rail; 22, sliding plate; 23, sliding driving piece; 24, connecting plate; 30, shaping mechanism; 31, shaping platform; 311, connecting hole; 32, shaping assembly; 321, fixed shaping plate; 3211, first adjusting groove; 322, movable shaping plate; 3221, second adjusting groove; 33, bayonet; 330, bayonet driving piece; 40, battery to be tested; 401, top sealing edge; 41, positive electrode lug; 42, negative electrode lug. DETAILED DESCRIPTION

[0036] To make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below in combination with specific embodiments and referring to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0037] Referring to Figures 1 to 6 , the polymer soft package battery two-seal test edge voltage mechanism of the utility model embodiment comprises two test probe 14 assemblies 10, a sliding platform 20 and two shaping mechanisms 30. Specifically, as shown in Figure 1 , the two test probe 14 assemblies 10 are arranged opposite and spaced apart, and the lower side of any test probe 14 assembly 10 corresponds to a test station. A sliding platform 20 is arranged in the interval between the two test stations and is displaced towards or away from any test station, i.e. the sliding platform 20 is arranged to slide in the interval between the two test stations. The two shaping mechanisms 30 are opposite, specifically along the displacement direction of the sliding platform 20, i.e. as shown in Figure 1The left-right direction shown is opposite and spaced apart on the sliding platform 20. Any shaping mechanism 30 includes a shaping platform 31, four shaping components 32 and a bayonet 33. The shaping platform 31 is exemplarily a square platform and is arranged above the sliding platform 20. The four shaping components 32 are distributed in a circumferential direction and at least one can be displaced in a direction close to or away from the other several to realize the size of the positioning shaping area defined by the four shaping components 32. The bayonet 33 is arranged corresponding to the top sealing edge 401 of the negative tab 42 of the battery to be tested 40 away from the positive tab 41 or the positive tab 41 away from the negative tab 42 side in the positioning shaping area, and the bayonet 33 can be driven to be displaced in a direction towards or away from the positioning shaping area. In the embodiment of the utility model, the bayonet 33 pierces into the aluminum plastic film area of the battery to be tested 40, not the middle area of the positive and negative tabs 42 as in the background art, but the outside of the positive tab 41 or the negative tab 42, that is, the edge area. Since the hardness of the top sealing edge 401 of the edge area is strong, the top sealing edge 401 is not easy to bend when the bayonet 33 pierces into the aluminum plastic film when it is displaced close, and it can smoothly pierce into and contact the aluminum plastic film to form a conduction, improving the test efficiency. At the same time, two test stations are arranged, and the switching is realized through the sliding platform 20, so that the test of two batteries can be completed in one test operation, further improving the test efficiency.

[0038] The structures of the two test probe 14 components 10 are the same. For any test probe 14 component 10, Figure 5 and Figure 6 as shown, it includes a fixed frame 11, a fixed plate 12, a mechanical claw 13, two test probes 14 and a limiting block 15. The fixed frame 11 is a square column extending in the vertical direction. The fixed plate 12 is a square plate, one end of which is fixed to the side of the fixed frame 11, specifically to the side facing the other fixed frame 11, and the other end extends horizontally outward, that is, towards the other fixed frame 11. A mechanical claw 13 is arranged at the bottom of the fixed plate 12. The mechanical claw 13 includes a driving body 132 and a clamping jaw part 131. The driving body 132 is fixed to the bottom surface of the fixed plate 12 and is a conventional driving mechanism that can drive the clamping jaw part 131 to stretch and retract in the vertical direction and rotate around the vertical line. No specific description and limitation is made. The clamping jaw part 131 is a square plate arranged horizontally and has a plurality of vertical through holes on it to facilitate the insertion and fixation of the test probes 14. Figure 6 The two test probes 14 are opposite, that is, as shown in Figure 6The front and / or rear sides have transverse through holes (not shown). Bolts (not shown) are inserted into these through holes, with their inner ends pressing against the side of the test probe 14 to secure it. A limiting block 15 is provided on the side of the gripper portion 131, for example... Figure 5 Extending vertically downwards from the rear side as shown, the limiting block 15 is designed to press against the area on the battery under test 40 that is pierced by the bayonet 33 during testing. Its function is to prevent the bayonet 33 from piercing the top seal edge and causing leakage. Specifically, the side of the limiting block 15 at its bottom end faces the bayonet 33 during testing. Figure 6 The front side shown has a relief groove 151 extending upwards and backwards. This relief groove 151 does not penetrate the rear side of the limiting block 15. It should be noted that when the limiting block 15 presses against the upper surface of the battery 40 to be tested, the piercing 33 penetrates into the relief groove 151 and, upon reaching the bottom of the groove, can pierce the aluminum-plastic film in contact with the battery and form a conductive connection. As an alternative embodiment, the relief groove 151 may not be provided; in the above embodiment, that is... Figure 6 The thickness of the limiting block 15 can be reduced to the distance between the rear side of the limiting block 15 and the bottom surface of the clearance groove 151, based on the limiting block 15 shown.

[0039] For shaping component 32, such as Figure 3 As shown, in some preferred embodiments, the four shaping components 32 include two fixed shaping components and two movable shaping components. Each fixed shaping component includes a square fixed shaping plate 321. Each movable shaping component includes a square movable shaping plate 322 and a shaping drive connected to the movable shaping plate 322. Two fixed shaping plates 321 are arranged adjacent to each other, for example... Figure 3 The rear and left sides, as well as the two movable shaping plates 322 shown, are also arranged adjacent to each other, for example, as... Figure 3 The right and front sides, as shown, define a square positioning and shaping area defined by two fixed shaping plates 321 and two movable shaping plates 322. Two shaping drive components are disposed on the bottom surface of the shaping platform 31, and their drive ends can extend or retract horizontally from the bottom surface of the shaping platform 31. The shaping drive components can be conventional cylinders. The two movable shaping plates 322 are driven by their respective shaping drive components to move towards or away from the two fixed shaping plates 321 to adjust the size of the positioning and shaping area. It should be noted that in this embodiment, the long sides of the two fixed shaping plates 321, i.e., their lengths, correspond to the two adjacent sides of the positioning and shaping area, and the short sides of the movable shaping plates 322, i.e., their widths, correspond to the other two sides of the positioning and shaping area. One of the fixed shaping plates 321 is exemplarily as shown below. Figure 3 The outer side of the fixed shaping plate 321 on the left side, as shown, is also...Figure 3 A bayonet 33 is provided on the left side as shown. To avoid interference when the bayonet 33 pierces the battery 40 under test, a fixing and shaping plate 321 is provided corresponding to the bayonet 33. Figure 3 The left-side fixing and shaping plate 321 shown has a clearance notch (not indicated) corresponding to the bayonet 33 position. This clearance notch is formed by... Figure 3 The left side extends to the right but does not penetrate the rear side. It should be noted that the fixed shaping plate 321 is not completely fixed in position to the shaping platform 31; it is only fixed during testing. For example... Figure 3 As shown, the shaping platform 31 has several openings along the edges... Figure 3 The connecting holes 311 shown are spaced apart in the front-back and left-right directions and penetrate the thickness direction of the shaping platform 31. Each fixed shaping plate 321 has two first adjustment grooves 3211 that are symmetrically arranged about its centerline parallel to the width direction and extend along the width direction of the fixed shaping plate 321. Each fixed shaping plate 321 is connected to the shaping platform 31 by a first connector (not shown), such as a bolt, passing through the first adjustment groove 3211 and the connecting holes 311 on the shaping platform 31. The first adjustment grooves 3211 are provided to adjust the size of the positioning and shaping area to accommodate the shaping of polymer soft-pack batteries of different sizes. Similarly, each movable shaping plate 322 has two second adjustment grooves 3221 symmetrically arranged about the centerline parallel to its long side and extending along the length of the movable shaping plate 322. Similarly, each movable shaping plate 322 is connected to the shaping platform 31 through the second adjustment grooves 3221 and the connecting holes 311 on the shaping platform 31 by a second connector (not shown), such as a bolt, which passes through the second adjustment grooves 3221. The second adjustment grooves 3221 can guide the movement of the movable shaping plate 322, ensuring the straightness during movement, thereby improving the edge flatness of the battery under test 40, that is, improving the shaping quality.

[0040] The bayonet drive unit 330 that drives the bayonet 33 to pierce can be a conventional cylinder. The specific structure of the bayonet 33 is not described or limited; it is the structure of a bayonet 33 used in conventional edge voltage testing mechanisms.

[0041] For the sliding platform 20, such as Figure 2 As shown, it includes two slide rails 21, two slide plates 22, and a sliding drive component 23. The two slide rails 21 slide along a direction perpendicular to the sliding platform 20, i.e., as shown... Figure 2 The slides are arranged in a front-to-back direction and spaced apart, with each slide rail 21 extending along the sliding displacement direction of the sliding platform 20. The two slide plates 22 also extend along the sliding displacement direction, i.e., as shown... Figure 2 The slides are arranged above two slide rails 21, facing each other and spaced apart. Several ( ) are provided above each slide plate 22.Figure 3 The two shaping mechanisms 30 are respectively arranged above the support columns on the two sliding plates 22. The sliding drive 23 is arranged on the outside of the rear sliding rail 21 as shown in the figure, and is fixed at one end and connected with the sliding plate 22 at the other end, i.e., the driving end. Figure 2 The sliding drive 23 can be a conventional air cylinder, and can be extended or retracted in the left-right direction as shown in the figure, i.e., the direction parallel to the sliding displacement direction. The two sliding plates 22 are connected by a connecting plate 24, so that the two sliding plates 22 and the two shaping mechanisms 30 on the sliding plates 22 can be driven synchronously to move close to or away from the test station on the corresponding side by one sliding drive 23. The number of components is less, the structure is simpler, and the cost is lower. Figure 2

[0042] The working process of the polymer soft-pack battery two-seal test edge voltage mechanism is as follows: the two batteries to be tested 40 are respectively placed in the positioning and shaping areas on the shaping platforms 31 of the two shaping mechanisms 30, the movable shaping plate 322 is driven to move close to the fixed shaping plate 321 and press against the side of the battery to be tested 40, and the battery to be tested 40 is pressed against the two fixed shaping plates 321 on the two sides corresponding to the two fixed shaping plates 321 to complete the shaping of the battery to be tested 40. Figure 1 The movable shaping plate 322 is driven to move close to the top seal edge position of the negative electrode lug of the battery to be tested 40 at the test station 1, and the bayonet 33 is in contact with the aluminum-plastic film to form a conduction path. Then, the mechanical claw 13 at the test station 1 is lowered to make the test probe 14 contact the battery to be tested 40 to complete the test. Then, the sliding platform 20 moves towards the test station 2, and the same operation is performed to complete the test.

[0043] It should be understood that the above specific embodiments of the utility model are only used for example or explanation of the principle of the utility model, and do not constitute a limitation on the utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the utility model shall be included in the protection scope of the utility model. In addition, the appended claims of the utility model are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.​

Claims

1. A polymer soft-pack battery dual-seal test edge voltage mechanism, characterized in that, include: Two opposing and spaced-apart test stations, each of which is provided with a test probe assembly that can be raised and lowered vertically; A sliding platform is positioned within the interval between the two test stations and can move closer to or further away from either test station. Two shaping mechanisms are disposed opposite to and spaced apart on the sliding platform along the displacement direction of the sliding platform. Each shaping mechanism includes a shaping platform, four shaping components disposed on the shaping platform that are circumferentially spaced apart, at least one of which can move closer to or away from the other components, and a bayonet disposed on one side of the shaping platform. A square and adjustable positioning shaping area is formed on the shaping platform by the four shaping components. During shaping, the battery under test is positioned in the positioning shaping area by the four shaping components. The bayonet is disposed corresponding to the top sealing edge of the negative electrode tab of the battery under test in the positioning shaping area that is away from the positive electrode tab or the positive electrode tab that is away from the negative electrode tab, and can be driven to move toward or away from the positioning shaping area.

2. The polymer soft-pack battery dual-seal test edge voltage mechanism according to claim 1, characterized in that, Any of the test probe components includes: A fixed frame that extends vertically; A fixing plate, one end of which is fixed to the side of the fixing frame and the other end extends outward horizontally; A mechanical gripper is disposed on the bottom surface of the fixed plate and is vertically extendable and rotatable about a vertical line. The gripper portion of the mechanical gripper is implemented as a plate arranged in the horizontal direction and having several through holes that extend vertically. Two test probes are vertically opposite to each other and spaced apart on the gripper portion of the mechanical claw; A limiting block is provided on one side of the gripper portion and extends vertically. During testing, the limiting block is adapted to press against the top of the position on the battery under test where the piercing is located.

3. The polymer soft-pack battery dual-seal test edge voltage mechanism according to claim 2, characterized in that, The bottom end of the limiting block has an clearance groove on the side facing the bayonet during testing, and the bayonet penetrates the clearance groove and pierces the soft-pack battery.

4. The polymer soft-pack battery dual-seal test edge voltage mechanism according to claim 1, characterized in that, The four shaping components include two fixed shaping components fixed to the shaping platform and two movable shaping components movable relative to the shaping platform. Each fixed shaping component includes a fixed shaping plate, and each movable shaping component includes a movable shaping plate movably disposed on the shaping platform and a shaping drive component disposed at the bottom of the shaping platform and connected to the movable shaping plate. The two fixed shaping plates are arranged adjacent to each other, and the two fixed shaping plates and the two movable shaping plates define the positioning shaping area.

5. The polymer soft-pack battery dual-seal test edge voltage mechanism according to claim 4, characterized in that, The bayonet is disposed on the outer side of one of the fixed shaping plates, and an avoidance notch is opened on the fixed shaping plate corresponding to the bayonet at the position of the bayonet; During testing, the positive and negative tabs of the top sealing edge of the battery under test rest on the upper surface of the fixed shaping plate corresponding to the bayonet.

6. The polymer soft-pack battery dual-seal test edge voltage mechanism according to claim 4, characterized in that, The shaping platform has a plurality of connecting holes, and each of the fixed shaping plates has a first adjusting groove extending along its width direction. Each of the fixed shaping plates is connected to the shaping platform by a first connecting member passing through the first adjusting groove and the connecting holes on the shaping platform.

7. The polymer soft-pack battery dual-seal test edge voltage mechanism according to claim 4, characterized in that, Each of the movable shaping plates has a second adjustment groove extending along its respective length direction, and each of the movable shaping plates is connected to the shaping platform through the second adjustment groove and the connection hole on the shaping platform via a second connector passing through it.

8. The polymer soft-pack battery dual-seal test edge voltage mechanism according to claim 1, characterized in that, The sliding platform includes two slide rails that are opposite to each other and spaced apart along a direction perpendicular to their sliding direction, a sliding plate that is slidably disposed on the two slide rails and is opposite to each other and spaced apart, and a sliding drive component disposed outside the slide rails for driving the two sliding plates to reciprocate along the slide rails. The two shaping mechanisms are respectively fixed above the two sliding plates by a number of support columns.

9. The polymer soft-pack battery dual-seal test edge voltage mechanism according to claim 8, characterized in that, A connecting plate is provided between the two slide plates, and there is one sliding drive component, the drive end of which is connected to one of the slide plates to drive the two adjustment mechanisms to slide back and forth between the two test stations.

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