Compatible battery jig

Abstract

The utility model provides a compatible type battery jig which comprises a compatible type jig assembly and a compatible type jig adjusting assembly, the compatible type jig assembly is arranged on the left side, and the compatible type jig adjusting assembly is arranged on the right side and is fixed on an external machine table. The compatible jig adjusting assembly can adjust the width of the battery clamping position of the compatible jig assembly clamping the battery in the width direction of the battery, so that the compatible jig assembly can clamp the batteries with various lengths, widths and height specifications.

Description

Technical Field

[0001] This utility model belongs to the technical field of cylindrical battery manufacturing equipment, and particularly relates to a compatible battery fixture. Background Technology

[0002] Square aluminum-cased batteries are generally 120-250mm long, 22-100mm wide, and 80-250mm high. Battery specifications are defined by the numerical values ​​of their length, width, and height, and are generally in the range of 120-20-80 to 250-100-250.

[0003] A battery is a sealed container containing battery cells and anhydrous electrolyte. Poor sealing can cause electrolyte leakage during use, and more seriously, moisture can seep in. This moisture condenses and enters the electrolyte, damaging the insulation of the battery's internal electrochemical system. Even a small amount of water can cause abnormally high currents during charging, leading to abnormal heating and even explosions or fires. The sealing of a battery is crucial to the safety of the battery and devices that use it, such as electric vehicles.

[0004] After the battery top cover is welded and the sealing pins are welded, the airtightness must be tested. The industry uses helium as a tracer gas for leak detection. A pressure difference is created between the inside and outside of the battery, causing helium to leak from the inside to the outside. The helium leak rate is detected using a helium mass spectrometer; this is called helium detection. After the top cover is welded, helium is introduced into the battery into a vacuum chamber for leak detection; this is called pre-helium detection. After the sealing pins are welded, helium is used in a vacuum chamber to detect leaks using helium pre-sealed inside the battery; this is called post-helium detection.

[0005] During testing, the battery is placed in a sealed cavity and a vacuum pump is used to create a vacuum chamber, forming a pressure difference between the inside and outside of the battery. This causes helium to leak from the inside out through possible leaks, cracks, pores, or inclusions. A detection pump draws vacuum air from the vacuum chamber containing the leaked helium and feeds it to a helium detector. After a certain period of time, when the rate at which the detection pump draws helium from the vacuum chamber for the detector equals the rate at which the battery leaks helium into the vacuum chamber, i.e., when the detected helium flow rate is equal to the leakage rate, the helium leakage rate per unit time is the battery's helium leakage rate.

[0006] Leakage in sealed containers is absolute; leak-free operation is relative. The standard for the airtightness of cylindrical batteries is a helium leakage rate ≥9.9×10⁻⁻¹ at 23°C. 7 Pa·m 3 A value of / s is considered unqualified. Products failing the sealing test are inspected and rejected according to this standard to ensure the sealing performance of batteries entering use, thereby ensuring the safety performance of batteries used in the market.

[0007] The requirements for battery helium testing are:

[0008] (i) Vacuuming for 2 seconds to achieve an air pressure of ≤20Pa inside the sealed cavity.

[0009] (ii) Vacuum chamber sealing: After the air pressure reaches ≤20Pa, the air pressure increases by ≤1Pa / s.

[0010] In existing helium testing technology, one set of fixtures can only be used for one type of battery. To address this, we have developed a compatible battery fixture that can perform sealing tests on batteries of various specifications, reducing the number of replacements and thus significantly lowering replacement costs. Utility Model Content

[0011] The purpose of this utility model is to provide a compatible battery fixture for sealing tests of batteries of various specifications, including: a compatible fixture assembly and a compatible fixture adjustment assembly; the compatible fixture assembly is fixed on the external machine base with the compatible fixture assembly on the left and the compatible fixture adjustment assembly on the right; the compatible fixture adjustment assembly can adjust the width of the battery clamping position of the compatible fixture assembly clamping the battery from the width direction of the battery, so that the compatible fixture assembly can clamp batteries of various lengths, widths and heights.

[0012] Furthermore, the compatible fixture assembly includes a fixture bracket, a fixture lifting driver, a fixture slide plate, a lower sealing ring, and a fixture. The fixture bracket includes a fixture bracket base plate, four fixture bracket sliding columns, two fixture bracket top plates, and four fixture lifting sleeves. The fixture bracket base plate is fixed to the external machine base. The four fixture bracket sliding columns are fixed at the four corners of the fixture bracket base plate. The two fixture bracket top plates are respectively fixed to the tops of the two fixture bracket sliding columns. The four fixture lifting sleeves are respectively fitted over the four fixture bracket sliding columns. The fixture lifting driver is vertically fixed to the middle of the fixture bracket base plate. The fixture slide plate is fixed to the four fixture lifting sleeves and to the output end of the fixture lifting driver. The fixture is fixed to the middle of the fixture slide plate. The lower sealing ring is fixed inside the outer edge of the fixture slide plate and is located around the fixture for sealing the fixture with the external cavity cover mechanism. The fixture lifting driver is used to drive the fixture slide plate to rise along the fixture bracket sliding columns to seal the fixture with the external cavity cover mechanism for helium detection.

[0013] Furthermore, the fixture includes a fixture base plate, two front fixture supports, two rear fixture supports, a fixture adjustment first drive plate, three fixture adjustment first linkage plates, a fixture adjustment second drive plate, three fixture adjustment second linkage plates, three fixture adjustment first linkage rods, three fixture adjustment second linkage rods, a fixture adjustment first drive nut, a fixture adjustment second drive nut, a fixture adjustment double-ended lead screw, sixteen fixture adjustment first sliding sleeves, sixteen fixture adjustment second sliding sleeves, two fixture adjustment first sliding rods, two fixture adjustment second sliding rods, a fixture adjustment drive first magnetic coupling, eight fixture clamping plates, four battery clamping positions, and a fixture height marker.

[0014] The fixture base plate is fixed to the middle of the fixture slide plate. Two front fixture supports are fixed to the two ends at the front of the fixture base plate, and two rear fixture supports are fixed to the two ends at the rear of the fixture base plate. Two first fixture adjustment slide rods are fixedly mounted on the upper and lower ends of the two front fixture supports. Sixteen first fixture adjustment sleeves, eight of each, are fitted onto the two first fixture adjustment slide rods. Two second fixture adjustment slide rods are fixedly mounted on the upper and lower ends of the two rear fixture supports, and sixteen second fixture adjustment sleeves, eight of each, are fitted onto the two second fixture adjustment slide rods. The double-ended fixture adjustment screw is rotatably mounted on the middle of the two front fixture supports. The first and second drive nuts for fixture adjustment are respectively fitted onto the right and left ends of the double-ended lead screw for fixture adjustment. The first drive plate for fixture adjustment is fixed to the first drive nut for fixture adjustment and to each of the two first and two second slide sleeves for fixture adjustment on the right. The second drive plate for fixture adjustment is fixed to the second drive nut for fixture adjustment and to each of the two first and two second slide sleeves for fixture adjustment on the left. The three first linkage plates for fixture adjustment are respectively fixed to each of the two first and two second slide sleeves for fixture adjustment in the middle. The three first linkage rods for fixture adjustment are respectively fixed to the first drive nut for fixture adjustment. Between the moving plate and the three fixture adjustment first linkage plates, the three fixture adjustment second linkage plates are respectively fixed on the two fixture adjustment first sliding sleeves and two fixture adjustment second sliding sleeves in the middle. Three fixture adjustment second linkage rods are respectively fixed between the fixture adjustment second drive plate and the three fixture adjustment second linkage plates. The fixture adjustment drive first magnetic coupling is fixed to the right end of the fixture adjustment double-ended lead screw. Four fixture clamping plates are respectively fixed on the left side of the fixture adjustment first drive plate and the three fixture adjustment first linkage plates, and another four fixture clamping plates are respectively fixed on the right side of the fixture adjustment second drive plate and the three fixture adjustment second linkage plates, in pairs adjacent to each other. Four battery clamping positions are formed between the jig clamping plates. The jig height marker is fixed on the outside right side of the jig adjustment first drive plate, located above the jig adjustment drive first magnetic coupling, and is used to detect the position of the jig relative to the compatible jig adjustment assembly. The jig adjustment double-headed lead screw can rotate to drive the jig adjustment first drive plate and the three jig adjustment first linkage plates to move in unison with the four jig clamping plates. At the same time, it drives the jig adjustment second drive plate and the three jig adjustment second linkage plates to move in unison with the four jig clamping plates in the opposite direction, so as to increase or decrease the width of the four battery clamping positions formed between the two adjacent jig clamping plates. The jig can clamp batteries of various specifications.

[0015] Furthermore, the compatible fixture adjustment assembly includes a fixture adjustment bracket, a fixture adjustment advance / retreat driver mounting plate, a fixture adjustment slide block, a fixture adjustment advance / retreat driver, a fixture adjustment carriage, a fixture adjustment limiter, a fixture adjustment driver, a fixture adjustment drive second magnetic coupling, and a fixture height detector.

[0016] Furthermore, near the compatible jig assembly, the jig adjustment advance / retreat driver mounting plate is fixed to the top of the jig adjustment bracket, the slide rail of the jig adjustment slide group is fixed to the top surface of the jig adjustment bracket, facing the compatible jig assembly, the jig adjustment advance / retreat driver is horizontally fixed to the jig adjustment advance / retreat driver mounting plate, the jig adjustment carriage is fixed to the output end of the jig adjustment advance / retreat driver and the slider of the jig adjustment slide group, the jig adjustment driver is horizontally fixed to the jig adjustment carriage, the jig adjustment drive second magnetic coupling is fixed to the output end of the jig adjustment driver, facing and aligning with the jig adjustment drive first magnetic coupling of the compatible jig assembly, the jig height detector is fixed to the top surface of the jig adjustment bracket, facing and aligning with the jig height marker of the compatible jig assembly, used to detect the position of the jig relative to the compatible jig adjustment assembly; the jig adjustment limiter is fixed to the top surface of the jig adjustment bracket, used to limit the position of the jig adjustment carriage advancing and engaging the jig adjustment drive first magnetic coupling.

[0017] The advantages of compatible battery fixtures are:

[0018] The compatible fixture assembly is fixed on the external machine base with the compatible fixture adjustment assembly on the left and the compatible fixture adjustment assembly on the right. The compatible fixture adjustment assembly can adjust the width of the battery clamping position of the compatible fixture assembly from the battery width direction, so that the compatible fixture assembly can clamp batteries of various lengths, widths and heights. Attached Figure Description

[0019] Figure 1 Structural diagram of a compatible battery fixture;

[0020] Figure 2 Compatible fixture component structure diagram;

[0021] Figure 3 Front view of the fixture;

[0022] Figure 4 Reverse structural diagram of the fixture;

[0023] Figure 5 Structural diagram of the compatible fixture adjustment component.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Battery;

[0026] 300. Compatible battery fixture;

[0027] 310. Compatible fixture components;

[0028] 311. Jig bracket; 3111. Jig bracket bottom plate; 3112. Jig bracket sliding column;

[0029] 3113. Fixture support top plate; 3114. Fixture lifting sliding sleeve;

[0030] 312. Fixture lifting drive;

[0031] 313. Fixture skateboard;

[0032] 314. Lower sealing ring;

[0033] 315. Fixture; 3151. Fixture base plate; 3152. Fixture front support; 3152A. Fixture rear support; 3153. Fixture adjustment first drive plate; 3153A. Fixture adjustment first linkage plate; 3154. Fixture adjustment second drive plate; 3154A. Fixture adjustment second linkage plate; 3155. Fixture adjustment first linkage rod; 3155A. Fixture adjustment second linkage rod; 3156. Fixture adjustment first drive plate Moving nut; 3156A, Fixture adjustment second drive nut; 3157, Fixture adjustment double-ended lead screw; 3158, Fixture adjustment first sliding sleeve; 3158A, Fixture adjustment second sliding sleeve; 3159, Fixture adjustment first sliding rod; 3159A, Fixture adjustment second sliding rod; 315A, Fixture adjustment drive first magnetic coupling; 315B, Fixture clamping plate; 315C, Battery clamping position; 315D, Fixture height marker;

[0034] 320. Compatible jig adjustment assembly; 321. Jig adjustment bracket; 322. Jig adjustment advance / retreat driver mounting plate; 323. Jig adjustment slide block; 324. Jig adjustment advance / retreat driver; 325. Jig adjustment carriage; 326. Jig adjustment limiter; 327. Jig adjustment driver; 328. Jig adjustment drive second magnetic coupling; 329. Jig height detector. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection within two components. For those skilled in the art, the specific meaning of the terms in this utility model can be understood according to the specific circumstances.

[0037] See Figure 1 This embodiment provides a compatible battery fixture for sealing tests on batteries of various specifications. It includes a compatible fixture assembly 310 and a compatible fixture adjustment assembly 320. The compatible fixture assembly 310 is fixed on the left and the compatible fixture adjustment assembly 320 is fixed on the right on an external machine. The compatible fixture adjustment assembly 320 can adjust the width of the battery clamping position 315C of the compatible fixture assembly 310 clamping the battery 10 from the width direction of the battery 10, so that the compatible fixture assembly 310 can clamp batteries 10 of various lengths, widths and heights.

[0038] See Figure 2Furthermore, the compatible jig assembly 310 includes a jig bracket 311, a jig lifting driver 312, a jig slide plate 313, a lower sealing ring 314, and a jig 315; the jig bracket 311 includes a jig bracket base plate 3111, four jig bracket sliding columns 3112, two jig bracket top plates 3113, and four jig lifting sliding sleeves 3114. The jig bracket base plate 3111 is fixed to the external machine platform, the four jig bracket sliding columns 3112 are fixed to the four corners of the jig bracket base plate 3111, the two jig bracket top plates 3113 are respectively fixed to the tops of the two jig bracket sliding columns 3112, and the four jig lifting sliding sleeves 3114... Each fixture is fitted onto the four fixture support slide columns 3112; the fixture lifting driver 312 is vertically fixed to the middle of the fixture support base plate 3111; the fixture slide plate 313 is fixed on the four fixture lifting slide sleeves 3114 and fixed on the output end of the fixture lifting driver 312; the fixture 315 is fixed on the middle of the fixture slide plate 313; the lower sealing ring 314 is fixed inside the outer edge of the fixture slide plate 313 and is located around the fixture 315 for sealing the fixture 315 with the external cavity cover mechanism; the fixture lifting driver 312 is used to drive the fixture slide plate 313 to rise along the fixture support slide column 3112 to seal the fixture 315 with the external cavity cover mechanism for helium detection.

[0039] See Figure 3 and Figure 4 Furthermore, the jig 315 includes a jig base plate 3151, two jig front supports 3152, two jig rear supports 3152A, a jig adjustment first drive plate 3153, three jig adjustment first linkage plates 3153A, a jig adjustment second drive plate 3154, three jig adjustment second linkage plates 3154A, three jig adjustment first linkage rods 3155, three jig adjustment second linkage rods 3155A, and a jig adjustment first drive plate. Nut 3156, jig adjustment second drive nut 3156A, jig adjustment double-ended lead screw 3157, sixteen jig adjustment first sliding sleeves 3158, sixteen jig adjustment second sliding sleeves 3158A, two jig adjustment first sliding rods 3159, two jig adjustment second sliding rods 3159A, jig adjustment drive first magnetic coupling 315A, eight jig clamping plates 315B, four battery clamping positions 315C, and jig height marker 315D;

[0040] The jig base plate 3151 is fixed to the middle of the jig slide plate 313. Two jig front supports 3152 are fixed to the two ends at the front of the jig base plate 3151, and two jig rear supports 3152A are fixed to the two ends at the rear of the jig base plate 3151. Two jig adjustment first slide rods 3159 are fixedly mounted on the upper and lower ends of the two jig front supports 3152, respectively. Sixteen jig adjustment first sliding sleeves 3158 are fitted onto the two jig adjustment first slide rods 3159 in eight-to-one arrangement. Two jig adjustment second slide rods 3159A are fixedly mounted on the upper and lower ends of the two jig rear supports 3152A, respectively. Sixteen jig adjustment second sliding sleeves 3158A are fitted onto the two jig adjustment first slide rods 3159 in eight-to-one arrangement. On the two sliding rods 3159A, the jig adjustment double-ended lead screw 3157 is rotatably mounted on the middle of the two jig front supports 3152. The jig adjustment first drive nut 3156 and jig adjustment second drive nut 3156A are respectively sleeved on the right and left ends of the jig adjustment double-ended lead screw 3157. The jig adjustment first drive plate 3153 is fixed on the jig adjustment first drive nut 3156 and on the two jig adjustment first sliding sleeves 3158 and two jig adjustment second sliding sleeves 3158A on the right. The jig adjustment second drive plate 3154 is fixed on the jig adjustment second drive nut 3156A and on the two jig adjustment first sliding sleeves 3158 and two jig adjustment second sliding sleeves 3158A on the left. Three fixture adjustment first linkage plates 3153A are respectively fixed on two fixture adjustment first sliding sleeves 3158 and two fixture adjustment second sliding sleeves 3158A in the middle. Three fixture adjustment first linkage rods 3155 are respectively fixed between the fixture adjustment first drive plate 3153 and the three fixture adjustment first linkage plates 3153A. Three fixture adjustment second linkage plates 3154A are respectively fixed on two fixture adjustment first sliding sleeves 3158 and two fixture adjustment second sliding sleeves 3158A in the middle. Three fixture adjustment second linkage rods 3155A are respectively fixed between the fixture adjustment second drive plate 3154 and the three fixture adjustment second linkage plates 3154A. Fixture adjustment drive first magnetic coupling 3 15A is fixed on the right end of the jig adjustment double-headed lead screw 3157. Four jig clamping plates 315B are respectively fixed on the left side of the jig adjustment first drive plate 3153 and three jig adjustment first linkage plates 3153A. Another four jig clamping plates 315B are respectively fixed on the right side of the jig adjustment second drive plate 3154 and three jig adjustment second linkage plates 3154A. Four battery clamping positions 315C are formed between the two adjacent jig clamping plates 315B. The jig height marker 315D is fixed on the outside right side of the jig adjustment first drive plate 3153, located above the jig adjustment drive first magnetic coupling 315A, and is used to detect the position of the jig 315 relative to the compatible jig adjustment assembly 320.The jig adjustment double-headed lead screw 3157 can rotate to drive the jig adjustment first drive plate 3153 and the three jig adjustment first linkage plates 3153A to move in unison with the four jig clamping plates 315B. Simultaneously, it drives the jig adjustment second drive plate 3154 and the three jig adjustment second linkage plates 3154A to move in unison with the four jig clamping plates 315B, thereby increasing or decreasing the width of the four battery clamping positions 315C formed between pairs of adjacent jig clamping plates 315B. The jig 315 can clamp batteries of various specifications 10.

[0041] See Figure 5 Furthermore, the compatible fixture adjustment assembly 320 includes a fixture adjustment bracket 321, a fixture adjustment advance / retreat driver mounting plate 322, a fixture adjustment slide 323, a fixture adjustment advance / retreat driver 324, a fixture adjustment carriage 325, a fixture adjustment limiter 326, a fixture adjustment driver 327, a fixture adjustment drive second magnetic coupling 328, and a fixture height detector 329;

[0042] The fixture adjustment bracket 321 is fixed to the external machine base, close to the compatible fixture assembly 310. The fixture adjustment advance / retreat driver mounting plate 322 is fixed to the top of the fixture adjustment bracket 321. The slide rail of the fixture adjustment slide group 323 is fixed to the top surface of the fixture adjustment bracket 321, facing the compatible fixture assembly 310. The fixture adjustment advance / retreat driver 324 is horizontally fixed to the fixture adjustment advance / retreat driver mounting plate 322. The fixture adjustment carriage 325 is fixed to the output end of the fixture adjustment advance / retreat driver 324 and the slider of the fixture adjustment slide group 323. The fixture adjustment driver 327 is horizontally fixed to the fixture adjustment carriage 325. Fixture adjustment... The second magnetic coupling 328 is fixed to the output end of the jig adjustment driver 327, facing and aligning with the jig adjustment driver first magnetic coupling 315A of the compatible jig assembly 310. The jig height detector 329 is fixed to the top surface of the jig adjustment bracket 321, facing and aligning with the jig height marker 315D of the compatible jig assembly 310, and is used to detect the position of the jig 315 relative to the compatible jig adjustment assembly 320. The jig adjustment limiter 326 is fixed to the top surface of the jig adjustment bracket 321 and is used to limit the forward movement of the jig adjustment carriage 325 to engage the jig adjustment driver first magnetic coupling 315A.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compatible battery fixture (300), characterized in that, include: A compatible fixture assembly (310) and a compatible fixture adjustment assembly (320) are fixed on an external machine base. The compatible fixture assembly (310) is on the left and the compatible fixture adjustment assembly (320) is on the right. The compatible fixture adjustment assembly (320) can adjust the width of the battery clamping position (315C) of the compatible fixture assembly (310) clamping the battery (10) from the width direction of the battery (10), so that the compatible fixture assembly (310) can clamp batteries (10) of various lengths, widths and heights.

2. The compatible battery fixture (300) according to claim 1, characterized in that, The compatible jig assembly (310) includes a jig bracket (311), a jig lifting driver (312), a jig slide plate (313), a lower sealing ring (314), and a jig (315). The jig bracket (311) includes a jig bracket base plate (3111), four jig bracket sliding columns (3112), two jig bracket top plates (3113), and four jig lifting sleeves (3114). The jig bracket base plate (3111) is fixed to an external machine platform. The four jig bracket sliding columns (3112) are fixed to the four corners of the jig bracket base plate (3111). The two jig bracket top plates (3113) are respectively fixed to the tops of the two jig bracket sliding columns (3112). The four jig lifting sleeves (3114) are respectively fitted onto the four jig bracket sliding columns (3112). The fixture is located outside the support slide column (3112); the fixture lifting driver (312) is vertically fixed to the middle of the fixture support base plate (3111), the fixture slide plate (313) is fixed on the four fixture lifting slide sleeves (3114) and fixed on the output end of the fixture lifting driver (312), the fixture (315) is fixed on the middle of the fixture slide plate (313), and the lower sealing ring (314) is fixed inside the outer edge of the fixture slide plate (313) and located around the fixture (315) for sealing the fixture (315) with the external cavity cover mechanism; the fixture lifting driver (312) is used to drive the fixture slide plate (313) to rise along the fixture support slide column (3112) and seal the fixture (315) with the external cavity cover mechanism for helium detection.

3. The compatible battery fixture (300) according to claim 2, characterized in that, The fixture (315) includes a fixture base plate (3151), two front fixture supports (3152), two rear fixture supports (3152A), a fixture adjustment first drive plate (3153), three fixture adjustment first linkage plates (3153A), a fixture adjustment second drive plate (3154), three fixture adjustment second linkage plates (3154A), three fixture adjustment first linkage rods (3155), three fixture adjustment second linkage rods (3155A), and a fixture adjustment first drive nut (3155A). 56) Fixture adjustment second drive nut (3156A), fixture adjustment double-ended lead screw (3157), sixteen fixture adjustment first sliding sleeves (3158), sixteen fixture adjustment second sliding sleeves (3158A), two fixture adjustment first sliding rods (3159), two fixture adjustment second sliding rods (3159A), fixture adjustment drive first magnetic coupling (315A), eight fixture clamping plates (315B), four battery clamping positions (315C), and fixture height marker (315D); The fixture base plate (3151) is fixed to the middle of the fixture slide plate (313). Two fixture front supports (3152) are fixed to the two ends in front of the fixture base plate (3151), and two fixture rear supports (3152A) are fixed to the two ends behind the fixture base plate (3151). Two fixture adjustment first slide rods (3159) are fixedly mounted on the upper and lower ends of the two fixture front supports (3152). Sixteen fixture adjustment first sliding sleeves (3158) are fitted onto the two fixture adjustment first slide rods (3159) in eight-slot configuration. Two fixture adjustment second slide rods (3159A) are fixedly mounted on the two fixture rear supports. At the upper and lower ends of (3152A), sixteen of the aforementioned fixture adjustment second sliding sleeves (3158A), eight of which are respectively fitted onto two of the aforementioned fixture adjustment second sliding rods (3159A). The fixture adjustment double-ended lead screw (3157) is rotatably mounted on the middle of the two aforementioned fixture front support columns (3152). The fixture adjustment first drive nut (3156) and the fixture adjustment second drive nut (3156A) are respectively fitted onto the right and left ends of the fixture adjustment double-ended lead screw (3157). The fixture adjustment first drive plate (3153) is fixed on the fixture adjustment first drive nut (3156) and on the two fixture adjustment first sliding sleeves (3158) on the right and two of the aforementioned fixture adjustment second sliding rods (3159A). The fixture adjustment second sliding sleeve (3158A) is fixed on the fixture adjustment second drive plate (3154), the fixture adjustment second drive nut (3156A), and the two fixture adjustment first sliding sleeves (3158) and two fixture adjustment second sliding sleeves (3158A) on the left. Three fixture adjustment first linkage plates (3153A) are respectively fixed on the two fixture adjustment first sliding sleeves (3158) and two fixture adjustment second sliding sleeves (3158A) in the middle. Three fixture adjustment first linkage rods (3155) are respectively fixed between the fixture adjustment first drive plate (3153) and the three fixture adjustment first linkage plates (3153A). The fixture adjustment second linkage plate (3154A) is fixed to each of the two fixture adjustment first sliding sleeves (3158) and the two fixture adjustment second sliding sleeves (3158A) in the middle. The three fixture adjustment second linkage rods (3155A) are fixed between the fixture adjustment second drive plate (3154) and the three fixture adjustment second linkage plates (3154A). The fixture adjustment drive first magnetic coupling (315A) is fixed to the right end of the fixture adjustment double-ended lead screw (3157). The four fixture clamping plates (315B) are fixed to the left side of the fixture adjustment first drive plate (3153) and the three fixture adjustment first linkage plates (3153A).The other four fixture clamping plates (315B) are respectively fixed to the right side of the fixture adjustment second drive plate (3154) and the three fixture adjustment second linkage plates (3154A). Four battery clamping positions (315C) are formed between the two adjacent fixture clamping plates (315B). The fixture height marker (315D) is fixed to the outside of the right side of the fixture adjustment first drive plate (3153) and located above the fixture adjustment drive first magnetic coupling (315A) to detect the position of the fixture (315) relative to the compatible fixture adjustment assembly (320); the fixture adjustment double head The lead screw (3157) can rotate to drive the first drive plate (3153) of the fixture adjustment and the three first linkage plates (3153A) of the fixture adjustment, along with the four fixture clamping plates (315B), to move in unison. Simultaneously, it drives the second drive plate (3154) of the fixture adjustment and the three second linkage plates (3154A) of the fixture adjustment, along with the four fixture clamping plates (315B), to move in the opposite direction. This increases or decreases the width of the four battery clamping positions (315C) formed between two adjacent fixture clamping plates (315B). The fixture (315) can clamp batteries (10) of various specifications.

4. The compatible battery fixture (300) according to claim 3, characterized in that, The compatible fixture adjustment assembly (320) includes a fixture adjustment bracket (321), a fixture adjustment advance / retreat driver mounting plate (322), a fixture adjustment slide (323), a fixture adjustment advance / retreat driver (324), a fixture adjustment slide (325), a fixture adjustment limiter (326), a fixture adjustment driver (327), a fixture adjustment drive second magnetic coupling (328), and a fixture height detector (329). The fixture adjustment bracket (321) is fixed on an external machine base, close to the compatible fixture assembly (310). The fixture adjustment advance / retreat driver mounting plate (322) is fixed on the top of the fixture adjustment bracket (321). The slide rail of the fixture adjustment slide group (323) is fixed on the top surface of the fixture adjustment bracket (321), facing the compatible fixture assembly (310). The fixture adjustment advance / retreat driver (324) is horizontally fixed on the fixture adjustment advance / retreat driver mounting plate (322). The fixture adjustment carriage (325) is fixed on the output end of the fixture adjustment advance / retreat driver (324) and on the slider of the fixture adjustment slide group (323). The fixture adjustment driver (327) is horizontally fixed on the fixture adjustment carriage (325). The fixture... The adjustment drive second magnetic coupling (328) is fixed on the output end of the jig adjustment driver (327), facing and aligning with the jig adjustment drive first magnetic coupling (315A) of the compatible jig assembly (310). The jig height detector (329) is fixed on the top surface of the jig adjustment bracket (321), facing and aligning with the jig height marker (315D) of the compatible jig assembly (310), for detecting the position of the jig (315) relative to the compatible jig adjustment assembly (320). The jig adjustment limiter (326) is fixed on the top surface of the jig adjustment bracket (321), for limiting the position of the jig adjustment carriage (325) forward to engage the jig adjustment drive first magnetic coupling (315A).

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