Automatic deviation correction and insertion mechanism

Abstract

The present invention discloses an automatic deviation-correcting plug-in mechanism, the technical solution of which mainly comprises a mounting member for mounting on an EOL test device; a bearing seat connected to the mounting member; a relatively movable connection between the mounting member and the bearing seat, wherein the relative movement has a non-longitudinal component; a forward-facing correction block is mounted on the bearing seat, wherein the correction block has a directly opposite surface and a guiding inclined surface, and during the process of the bearing seat being driven forward, if the guiding inclined surface first contacts a battery module, the bearing seat performs the above-mentioned relative movement against the battery module under the guidance of the guiding inclined surface until the directly opposite surface contacts the battery module, and when the outer dimensions of the battery module to be tested have a deviation within an allowable error range, the bearing seat moves under the guidance of the guiding inclined surface of the correction block until the directly opposite surface of the correction block contacts the battery module, thereby achieving the purpose of automatically correcting the plug according to the battery module to be tested and better plugging the plug with the socket.

Description

Technical Field

[0001] The present invention relates to the technical field of battery module testing equipment, and more specifically, to an automatic deviation-correcting and plugging mechanism for battery module EOL testing equipment. Background Art

[0002] In the post-assembly testing process of the power battery module in the new energy industry, it is necessary to test the temperature and voltage inside the battery module, and connect the socket inside the battery module with the external test plug. Traditional testing methods mainly rely on manual detection, but due to the huge amount of data and the complicated means of testing tools, they have long been unable to adapt to the current production requirements for high efficiency in product testing. At present, there are automated EOL testing equipment on the market for comprehensive testing of battery module EOL (End of Line Test / production line test application), and they have won a good response from the market. However, the position of the plug of the plug-in mechanism in these automated EOL testing equipment relative to the test bearing plane is fixed. When the external dimensions of the battery module to be tested have deviations within the allowable error range, the plug of the plug-in mechanism and the socket of the battery module to be tested may not be well plugged in, and may even cause damage to the plug and socket. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic deviation correction and plugging mechanism, so that the plug can be automatically corrected according to the battery module to be tested, so that the plug and the socket can be better plugged.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: an automatic deviation correction and insertion mechanism, comprising:

[0005] A mounting part, which is used for mounting on the EOL test equipment;

[0006] A bearing seat connected to the above-mentioned mounting member;

[0007] A plug mounted on the support base, used for longitudinally plugging into the battery module to be tested;

[0008] Features:

[0009] The connection between the mounting member and the bearing seat is a relatively movable connection, and the relative movement has a non-longitudinal component;

[0010] The support seat is provided with a forward correction block, which has a directly opposite surface and a guiding inclined surface. When the support seat is driven forward, if the guiding inclined surface contacts the battery module first, the support seat will perform the above-mentioned relative movement along the battery module under the guidance of the guiding inclined surface until the directly opposite surface contacts the battery module.

[0011] As a further optimization, the above relative movement between the mounting member and the bearing seat has a lateral component, a lateral deviation correction assembly is connected between the mounting member and the bearing seat, and the lateral deviation correction assembly includes a lateral guide block and a lateral guide rail that can move laterally relative to each other, one of the lateral guide block and the lateral guide rail is connected to the bearing seat, and the other is connected to the mounting member;

[0012] The correction block includes a transverse correction block, which has a directly opposite surface and a guiding inclined surface. When the supporting seat is driven forward, if the guiding inclined surface of the transverse correction block contacts the battery module first, the supporting seat moves laterally along the battery module under the guidance of the guiding inclined surface of the transverse correction block, and the transverse guide block moves laterally relative to the transverse guide rail until the directly opposite surface of the transverse correction block contacts the battery module.

[0013] As a further optimization, the lateral deviation correction assembly includes two lateral limit blocks, and the two lateral limit blocks are respectively located at the front and rear ends of the lateral guide block and / or the lateral guide rail in the lateral movement direction.

[0014] As a further optimization, a buffer spring is provided between the lateral correction block and the bearing.

[0015] As a further optimization, the above-mentioned movement between the mounting member and the bearing seat has a vertical component, a vertical deviation correction assembly is connected between the mounting member and the bearing seat, and the vertical deviation correction assembly includes a vertical guide block and a vertical guide rail that can move vertically relative to each other, one of the vertical guide block and the vertical guide rail is connected to the bearing seat, and the other is connected to the mounting member;

[0016] The correction block includes a vertical correction block, which has a directly opposite surface and a guiding inclined surface. When the supporting seat is driven forward, if the guiding inclined surface of the vertical correction block contacts the battery module first, the supporting seat moves vertically along the battery module under the guidance of the guiding inclined surface of the vertical correction block, and the vertical guide block moves vertically relative to the vertical guide rail until the directly opposite surface of the vertical correction block contacts the battery module.

[0017] As a further optimization, the vertical correction assembly includes a vertical limit block and a vertical fixed plate, one of the vertical guide block and the vertical guide rail is connected to the bearing seat, and the other is connected to the vertical fixed plate, the mounting part is installed together with the vertical fixed plate, the vertical fixed plate is provided with a vertical limit opening, the vertical limit block is connected to the bearing seat, the vertical limit block is inserted into the vertical limit opening, and when the bearing seat moves vertically, the vertical limit block moves vertically in the vertical limit opening.

[0018] As a further optimization, a buffer spring is provided between the vertical correction block and the bearing seat.

[0019] As a further optimization, it also includes screws, the mounting piece has a vertical waist-shaped mounting hole, and the vertical fixing plate has a mounting hole. The mounting piece and the vertical fixing plate are installed together by inserting the screws into the mounting holes on the mounting piece and the mounting holes on the vertical fixing plate in sequence.

[0020] As a further optimization, the amount by which the vertical position of the plug can be adjusted through the mounting hole is greater than the amount by which the vertical position of the plug can be adjusted through the vertical deviation correcting assembly.

[0021] As a further optimization, a plug assembly is provided on the bearing seat, and the plug assembly includes a plug mounting plate, a floating block and a positioning pin. The above-mentioned plug is arranged on the floating block, and the floating block is mounted on the plug mounting plate through the positioning pin. The plug mounting plate is connected to the bearing seat, and the floating block can swing relative to the plug mounting plate with the positioning pin as the axis.

[0022] In summary, the present invention has the following beneficial effects: when the supporting seat is driven forward to realize the plugging of the plug and the battery module to be tested, if the external dimensions of the battery module to be tested have deviations within the allowable error range, the supporting seat moves under the guidance of the guiding inclined surface of the correction block until the opposite side of the correction block contacts the battery module, thereby achieving the purpose of automatically correcting the plug according to the battery module to be tested and better plugging the plug and the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a structural schematic diagram of an automatic deviation-correcting and insertion mechanism in an embodiment after partial decomposition from one viewing angle;

[0024] Figure 2 is a structural schematic diagram of another perspective after the automatic deviation-correcting and insertion mechanism in the embodiment is partially decomposed;

[0025] Figure 3 is a schematic diagram of the coordination relationship between the automatic deviation-correcting plug-in mechanism and the battery module to be detected in the embodiment;

[0026] Figure 4 is a structural schematic diagram of a plug assembly of an automatic deviation-correcting plug-in mechanism in an embodiment;

[0027] Figure 5 It is an enlarged schematic diagram of the matching relationship between the plug mounting plate and the floating block of the plug assembly of the automatic deviation correction mechanism in the embodiment after partial sectioning;

[0028] Figure 6 It is a schematic diagram of the structure of the plug component of the automatic deviation-correcting mechanism in the embodiment after partial decomposition.

[0029] In the figure: 1. Plug assembly; 11. Plug; 12. Plug push cylinder; 13. Connecting block; 14. Connecting seat; 15. Plug mounting plate; 16. Floating block; 161. Limiting hole; 162. Through hole; 2. Bearing seat; 21. Linkage plate; 3. Horizontal deviation correction assembly; 31. Horizontal fixing plate; 32. Horizontal guide block; 33. Horizontal guide rail; 34. Horizontal limiting block; 4. Vertical deviation correction assembly; 41. Vertical fixing plate; 411. Vertical limiting opening; 412. Mounting hole; 42. Vertical Guide block; 43, vertical guide rail; 44, vertical limit block; 5, lateral correction block; 50, guide column; 51, bayonet; 511, guide entrance; 512, opposite; 6, vertical correction block; 60, guide column; 61, guide slope; 62, opposite; 63, vertical adjustment screw; 7, mounting part; 71, mounting hole; 81, positioning pin; 82, limit pin; 83, spring adjustment screw; 84, reset spring; 91, push rail; 92, push guide block; 100, battery module. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0031] It is worth noting that, in conjunction with the drawings, the longitudinal direction in this embodiment is the front-to-back direction in the drawings, the transverse direction is the left-right direction in the drawings, and the vertical direction is the up-down direction.

[0032] Figure 1 and Figure 2 The structure of the automatic deflection correction and plugging mechanism from two different perspectives is shown respectively. The automatic deflection correction and plugging mechanism includes a plug assembly 1, a bearing seat 2, a lateral deflection correction assembly 3, a vertical deflection correction assembly 4, a lateral correction block 5, a vertical correction block 6 and a mounting member 7. The plug assembly 1, the vertical correction block 4 and the lateral correction block 3 are all mounted on the bearing seat 2. The mounting member 7 is used to install the automatic deflection correction and plugging mechanism on the EOL test equipment. Figure 3As shown, the plug assembly 1 includes a plug 11, which is used to longitudinally plug into the socket of the battery module 100 to be tested. The lateral correction assembly 3 and the vertical correction assembly 4 are installed between the mounting member 7 and the bearing seat 2, so that the connection between the mounting member 7 and the bearing seat 2 is a relatively movable connection, and the relative movement has a non-longitudinal component, which includes a lateral component and a vertical component in this embodiment. The lateral correction assembly 3 is used to achieve the relative movement of the lateral component, and the vertical correction assembly 4 is used to achieve the relative movement of the vertical component. The lateral correction block 5 and the vertical correction block 6 are correction blocks, which have a facing surface and a guiding inclined surface. When the bearing seat 2 is driven by the driving mechanism on the EOL test equipment to move forward close to the battery module 100, if the guiding inclined surface of the correction block first contacts the battery module 100, the bearing seat 2 is guided by the guiding inclined surface and moves relative to the battery module 100, until the facing surface of the correction block contacts the battery module 100. In order to achieve relative movement between the mounting member 7 and the bearing seat 2, in other embodiments, relative movement in multiple directions can also be achieved through universal joints, ball connectors, etc.

[0033] Combination Figure 1 , Figure 2 and Figure 3 As shown, the transverse correction block 5 is provided with a trumpet-shaped bayonet 51, which includes a guide inlet 511 and a directly opposite side 512. The guide inlet 511 gradually decreases from the outside to the inside and is an arc-shaped transition. The guide inlet 511 is a guide slope of the transverse correction block 5. Because the battery module 100 is fixed, when the support seat 2 is driven forward, if the guide inlet 511 of the transverse correction block 5 first contacts the battery module 100, the support seat 2 moves laterally along the battery module 100 under the guidance of the guide inlet 511 of the transverse correction block 5 until the directly opposite side 512 of the transverse correction block 5 contacts the battery module 100. A guide column 50 is provided between the transverse correction block 5 and the support seat 2, and a buffer spring (not shown in the figure) is provided between the guide column 50 and the support seat 2. When the travel of the support seat 2 and the transverse correction block 5 moving toward the battery module 100 is too long, the buffer spring buffers the retraction. The transverse deviation correction assembly 3 includes a transverse fixing plate 31, a transverse guide block 32 and a transverse guide rail 33. The transverse guide block 32 is mounted on the front end surface of the transverse fixing plate 31, and the transverse guide block 32 is mounted on the transverse guide rail 33. The transverse guide block 32 and the transverse guide rail 33 limit each other in the vertical direction. A linkage plate 21 is provided on the bearing seat 2, and the transverse guide rail 33 is mounted on the rear end surface of the linkage plate 21. The bearing seat 2 is mounted on the front end surface of the linkage plate 21, and the transverse fixing plate 31 is located at the rear side of the linkage plate 21. When the bearing seat 2 moves laterally, the transverse guide rail 33 moves laterally relative to the transverse guide block 32, so that the bearing seat 2 moves laterally relative to the mounting member 7. As an optimization, transverse limit blocks 34 are provided at both ends of the front end surface of the transverse fixing plate 31. The transverse limit blocks 34 are used to limit and prevent the transverse guide block 32 from sliding out of the transverse guide rail 33.

[0034] Combination Figure 1 , Figure 2 and Figure 3 As shown, the vertical correction block 6 is provided with a guiding bevel 61 and a directly opposite surface 62. When the supporting seat 2 is driven forward, if the guiding bevel 61 of the vertical correction block 6 first contacts the battery module 100, the supporting seat 2 moves vertically along the battery module 100 under the guidance of the guiding bevel 61 of the vertical correction block 6 until the directly opposite surface 62 of the vertical correction block 6 contacts the battery module 100. A guide column 60 is provided between the vertical correction block 6 and the supporting seat 2, and a buffer spring is provided between the guide column 60 and the supporting seat 2. When the vertical correction block 6 contacts the battery module 100, the vertical correction block 6 is forced to move laterally toward the supporting seat 2, and the buffer spring plays a role of buffering and resetting. A vertical adjustment screw 63 is provided above the vertical correction block 6, and the vertical adjustment screw 63 is used to adjust the vertical installation position of the vertical correction block 6. The vertical deviation correction assembly 4 includes a vertical fixing plate 41, a vertical guide block 42 and a vertical guide rail 43. The vertical guide rail 43 is mounted on the rear end surface of the horizontal fixing plate 31, and the vertical guide block 42 is mounted on the front end surface of the vertical fixing plate 41. The vertical guide block 42 is mounted on the vertical guide rail 43, and the vertical guide block 42 and the vertical guide rail 43 are mutually limited in the horizontal direction. When the bearing seat 2 moves vertically, the vertical guide rail 43 moves vertically relative to the vertical guide block 42, so that the bearing seat 2 moves vertically relative to the mounting member 7.

[0035] Combination Figure 1 , Figure 2 and Figure 3 As shown, as an optimization, the vertical deviation correction component 4 includes a vertical limit block 44, which is installed on the rear end surface of the horizontal fixing plate 31, and the vertical fixing plate 41 is provided with a vertical limit opening 411, and the vertical limit block 44 is inserted into the vertical limit opening 411, and the vertical height of the vertical limit opening 411 is greater than the vertical height of the part of the vertical limit block 44 inserted into the vertical limit opening 411. Due to its own gravity, the vertical limit block 44 normally contacts the lower end of the vertical limit opening 411, and when performing vertical automatic deviation correction, the vertical limit block 44 moves upward, and the vertical limit block 44 cooperates with the vertical limit opening 411 to limit the vertical adjustment amount.

[0036] Combination Figure 1 , Figure 2 and Figure 3As shown, the mounting member 7 is installed at the rear end of the vertical fixing plate 41, and the mounting member 7 is used to install the automatic deviation correction and insertion mechanism on the EOL test equipment. The mounting member 7 is provided with a vertical waist-shaped mounting hole 71, and the vertical fixing plate 41 is provided with a mounting hole 412. Screws are inserted into the mounting hole 71 and the mounting hole 412 in sequence to achieve the installation and fixation between the mounting member 7 and the vertical fixing plate 41. The waist-shaped mounting hole 71 is set so that the vertical fixing plate 41 can be installed on the mounting member 7 higher or lower as needed, so as to roughly set the vertical position of the plug 11. The vertical height of the waist-shaped mounting hole 71 is greater than the vertical height of the vertical limit opening 411. The waist-shaped mounting hole 71 is used for roughly setting the vertical position of the plug 11, and the vertical deviation correction component 4 is used for fine adjustment of the vertical position of the plug 11. The amount of the vertical position of the plug 11 that can be adjusted through the mounting hole 71 is greater than the amount of the vertical position of the plug 11 that can be adjusted through the vertical deviation correction component 4.

[0037] Combination Figure 4 , Figure 5 and Figure 6 As shown, the floating plug assembly 1 includes a plug pushing cylinder 12, a connecting block 13, a connecting seat 14, a plug mounting plate 15 and a floating block 16. The telescopic rod of the plug pushing cylinder 12 is installed together with the connecting block 13. The connecting block 13 is installed and fixed on the connecting seat 14. The plug mounting plate 15 is installed and fixed on the connecting seat 14. The plug 11 is set on the floating block 16. The floating block 16 is installed on the plug mounting plate 15 by a positioning pin 81 and a limit pin 82. The positioning pin 81 is located at the rear side of the limit pin 82. A limit hole 161 is provided on the floating block 16, and the limit pin 82 is inserted into the limit hole 161. There is a certain gap between the limit hole 161 and the limit pin 82. The floating block 16 can swing with the positioning pin 81 as the axis, and the limit pin 82 limits the swing amplitude of the floating block 16. When the socket on the battery module 100 to be tested has a deviation within the allowable error range due to welding, the plug 11 and the floating block 16 can swing relative to the plug mounting plate 15 to achieve automatic correction and adjustment, so that the plug 11 and the socket can be better plugged in. The floating block 16 can swing freely in both directions by 0-3° and fine-tune within a small angle range. The gap between the limit pin 82 and the limit hole 161 will affect the swing amplitude of the floating block 16. In this embodiment, there is a gap of 0.55mm between the limit pin 82 and the limit hole 161.

[0038] Combination Figure 4 , Figure 5 and Figure 6As shown, as an optimization, the floating block 16 is provided with a through hole 162, which intersects the limiting hole 161 vertically, and an adjusting screw 83 is inserted into the left and right ends of the through hole 162, and a reset spring 84 is provided between the two adjusting screws 83 and the floating block 16. When the floating block 16 swings relative to the plug mounting plate 15, one of the two reset springs 84 is stretched and the other is compressed, and the elastic force generated by the two reset springs 84 can drive the floating block 15 to automatically swing and reset. The symmetrical arrangement of the two reset springs 84 can adjust the force balance on both sides of the floating block 16 after the floating block 16 swings and resets to the center, and the adjusting screw 83 presses the reset spring 84 into the through hole 162 or moves outward to loosen the reset spring 84, thereby adjusting the force balance on both sides of the floating block 16.

[0039] Combination Figure 4 and Figure 6 As shown, after the plug push cylinder 12 is started, its telescopic rod is extended, and the telescopic rod drives the connection seat 14 and the plug mounting plate 15 to move through the connection block 13, so that the plug 11 on the floating block 16 is inserted into the socket of the battery module 100. The bearing seat 2 is provided with a push guide rail 91, and the connection seat 14 is provided with a push guide block 92. The push guide block 92 is inserted into the push guide rail 91. When the plug push cylinder 12 drives the connection seat 14 to move, the push guide block 92 moves forward or backward along the push guide rail 91. The cooperation between the push guide block 92 and the push guide rail 91 better ensures the linear motion of the connection seat 14, and further ensures the linear motion of the plug 11.

[0040] The above specific embodiments are merely explanations of the present invention, and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the above embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. Automatic deviation correction and insertion mechanism, including: A mounting member (7) for mounting on an EOL test device; A bearing seat (2) connected to the mounting member (7); A plug (11) mounted on the support seat (2) and used for longitudinally plugging into a battery module to be tested; Features: The connection between the mounting member (7) and the bearing seat (2) is a relatively movable connection, and the relative movement has a non-longitudinal component; The support seat (2) is provided with forward-facing correction blocks (5, 6), the correction blocks (5, 6) having a front surface and a guide inclined surface, and when the support seat (2) is driven forward, if the guide inclined surface first contacts the battery module, the support seat (2) is guided by the guide inclined surface to perform the above-mentioned relative movement close to the battery module until the front surface contacts the battery module; The above-mentioned relative movement between the mounting member (7) and the bearing seat (2) has a lateral component, a lateral deviation correction assembly (3) is connected between the mounting member (7) and the bearing seat (2), and the lateral deviation correction assembly (3) comprises a lateral guide block (32) and a lateral guide rail (33) which can move relative to each other in the lateral direction, one of the lateral guide block (32) and the lateral guide rail (33) is connected to the bearing seat (2), and the other is connected to the mounting member (7); The correction block comprises a transverse correction block (5), the transverse correction block (5) having a facing surface (512) and a guiding inclined surface (511), and when the support seat (2) is driven forward, if the guiding inclined surface (511) of the transverse correction block (5) contacts the battery module first, the support seat (2) moves laterally along the battery module under the guidance of the guiding inclined surface (511) of the transverse correction block (5), and the transverse guide block (32) moves laterally relative to the transverse guide rail (33) until the facing surface (512) of the transverse correction block (5) contacts the battery module; A plug assembly (1) is provided on the bearing seat (2), the plug assembly (1) comprising a plug mounting plate (15), a floating block (16) and a positioning pin (81), the plug (11) being arranged on the floating block (16), the floating block (16) being mounted on the plug mounting plate (15) via the positioning pin (81), the plug mounting plate (15) being connected to the bearing seat (2), and the floating block (16) being able to swing relative to the plug mounting plate (15) with the positioning pin (81) as an axis.

2. The automatic deviation-correcting and plugging mechanism according to claim 1, characterized in that: The transverse deviation correction component (3) comprises two transverse limit blocks (33), and the two transverse limit blocks (33) are respectively located at the front and rear ends of the transverse guide block (32) and / or the transverse guide rail (33) in the transverse movement direction.

3. The automatic deviation-correcting and plugging mechanism according to claim 1, characterized in that: A buffer spring is provided between the lateral correction block (5) and the bearing seat (2).

4. The automatic deviation-correcting and plugging mechanism according to claim 1, characterized in that: The above-mentioned movement between the mounting member (7) and the bearing seat (2) has a vertical component, a vertical deviation correction assembly (4) is connected between the mounting member (7) and the bearing seat (2), and the vertical deviation correction assembly (4) comprises a vertical guide block (42) and a vertical guide rail (43) that can move vertically relative to each other, one of the vertical guide block (42) and the vertical guide rail (43) is connected to the bearing seat (2), and the other is connected to the mounting member (7); The correction block comprises a vertical correction block (6), the vertical correction block (6) having a directly opposite face (62) and a guiding inclined surface (61). When the support seat (2) is driven forward, if the guiding inclined surface (61) of the vertical correction block (6) contacts the battery module first, the support seat (2) moves vertically along the battery module under the guidance of the guiding inclined surface (61) of the vertical correction block (6), and the vertical guide block (42) moves vertically relative to the vertical guide rail (43) until the directly opposite face (62) of the vertical correction block (6) contacts the battery module.

5. The automatic deviation-correcting and plugging mechanism according to claim 4, characterized in that: The vertical deviation correction assembly (4) comprises a vertical limit block (44) and a vertical fixing plate (41); one of the vertical guide block (42) and the vertical guide rail (43) is connected to the bearing seat (2), and the other is connected to the vertical fixing plate (41); the mounting member (7) is mounted together with the vertical fixing plate (41); the vertical fixing plate (41) is provided with a vertical limit opening (411); the vertical limit block (44) is connected to the bearing seat (2); the vertical limit block (44) is inserted into the vertical limit opening (411); when the bearing seat (2) moves vertically, the vertical limit block (44) moves vertically in the vertical limit opening (411).

6. The automatic deviation-correcting and plugging mechanism according to claim 4, characterized in that: A buffer spring is provided between the vertical correction block (6) and the bearing seat (2).

7. The automatic deviation-correcting and plugging mechanism according to claim 6, characterized in that: The mounting member (7) also includes a vertical waist-shaped mounting hole (71), and the vertical fixing plate (41) includes a mounting hole (412). The mounting member (7) and the vertical fixing plate (41) are mounted together by inserting the screws into the mounting hole (71) on the mounting member (7) and the mounting hole (412) on the vertical fixing plate (41) in sequence.

8. The automatic deviation-correcting and plugging mechanism according to claim 7, characterized in that: The amount by which the vertical position of the plug (11) can be adjusted through the mounting hole (71) is greater than the amount by which the vertical position of the plug (11) can be adjusted through the vertical deviation correcting assembly (4).

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