Clamp for assembling lithium battery

Abstract

The utility model provides a fixture for lithium battery assembly, which belongs to the field of lithium battery assembly and comprises a base and a clamping mechanism connected onto the base, the clamping mechanism comprises a first clamping structure and a second clamping structure which are mounted at two ends of the base, the first clamping structure comprises a base, a clamping block connecting mechanism is mounted on the base, and a clamping block is mounted on the clamping block connecting mechanism. The clamping block connecting mechanism is connected with a clamping block used for clamping a lithium battery, the structure of the second clamping structure is the same as that of the first clamping structure, and a positioning structure fixedly connected to the base is arranged between the first clamping structure and the second clamping structure; through the arrangement of the clamping block connecting mechanism, when the clamping block is disassembled and assembled, the clamping block can be easily disassembled or assembled only by pulling out the handle of the connecting mechanism, the operation is convenient, the clamping block replacement time is saved, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of lithium battery assembly, and particularly relates to a fixture for lithium battery assembly. Background Technique

[0002] A lithium battery is a type of battery with lithium metal or lithium alloy as the positive / negative electrode material and using a non-aqueous electrolyte solution. Due to its high energy ratio and long service life, lithium batteries have been widely used in various fields. However, primary lithium batteries have poor safety performance and a risk of explosion. In order to prevent the lithium battery from moving or being bumped during the assembly process, ensure the accuracy and stability of the component position, and improve production efficiency, it is necessary to use a fixture for fixed assembly.

[0003] At present, lithium battery assembly manufacturers have basically achieved automated batch production. During the assembly process of lithium batteries, the robotic arm first grabs a lithium battery from the raw material area and places the lithium battery on the fixture. The fixture is used to grab and fix the lithium battery, facilitating surface dust removal and glue application to the lithium battery. After the glue application is completed, the robotic arm transfers the glued lithium battery to the assembly area to complete the lithium battery assembly.

[0004] When changing the production specifications of another batch of batteries, only the clamping block and the positioning block need to be removed from the base and the corresponding clamping block and positioning block need to be replaced. At present, the fixing method of the clamping block and the positioning block on the base is mainly bolt fixing. There are 4 - 6 bolts on a set of fixtures, and there are 10 - 30 sets of fixtures on a production line. Removing and replacing the clamping blocks on the fixtures one by one takes a relatively long time and the workload is relatively large. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fixture for lithium battery assembly, which has the advantages of convenient assembly, simple disassembly and replacement of the clamping block and the fixing block, and solves the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A fixture for lithium battery assembly, comprising a base;

[0008] A clamping mechanism, the base is provided with a clamping mechanism for clamping and fixing the lithium battery. The clamping mechanism includes a first clamping structure and a second clamping structure installed at both ends of the base. The first clamping structure is fixedly connected to the base, and the second clamping structure is slidably assembled on the base through a translation mechanism; the clamping mechanism has a clamping position and a release position. The first clamping structure and the second clamping structure at the clamping position are close to each other to clamp and fix the lithium battery, and the first clamping structure and the second clamping structure at the release position are far from each other to release the clamping.

[0009] The first clamping structure includes a base, on which a clamping block connecting mechanism is installed. The clamping block connecting mechanism is connected with a clamping block for clamping a lithium battery. The clamping block connecting mechanism includes a sleeve horizontally installed on the base. An expansion structure is provided at one end of the sleeve close to the second clamping structure. A limit pin for expanding the expansion structure is slidably assembled in the sleeve, and a compression spring is sleeved on the limit pin.

[0010] The structure of the second clamping structure is the same as that of the first clamping structure.

[0011] A positioning mechanism is arranged between the first clamping structure and the second clamping structure. The positioning mechanism is used for positioning the lithium battery. The positioning mechanism includes a lifting mechanism fixedly installed on the base. A positioning connecting mechanism is longitudinally installed at the top of the lifting mechanism. The positioning connecting mechanism is detachably connected with a positioning block, and the positioning block is provided with a positioning groove for positioning the lithium battery.

[0012] As a further improvement, the translation mechanism is a rodless cylinder.

[0013] As a further improvement, the lifting mechanism is a lifting cylinder.

[0014] As a further improvement, the expansion structure includes metal elastic sheets distributed at intervals along the circumferential direction of the sleeve, and a wedge block is connected to the inner side of the metal elastic sheet.

[0015] As a further improvement, there are two sleeves and limit pins installed in the sleeves.

[0016] As a further improvement, the clamping block and the positioning block are provided with mating holes for easy fixation.

[0017] As a further improvement, the two limit pins are connected by a handle so as to take out the limit pins simultaneously.

[0018] The beneficial effects of the above technical solutions of the present utility model are as follows:

[0019] By improving the clamping block connecting mechanism and the positioning connecting mechanism, the present utility model realizes the rebound contraction or extrusion expansion of the expansion structure by pulling out or pushing in the limit pin, realizes the rapid disassembly, replacement, installation and fixation of the clamping block and the positioning block, thereby saving the time required for replacing the clamping block and the positioning block and improving the work efficiency. Description of the Drawings

[0020] By referring to the accompanying drawings and reading the following detailed description, the above and other objects, features and advantages of the exemplary embodiments of the present utility model will become easy to understand. In the drawings, several embodiments of the present utility model are shown in an exemplary rather than restrictive manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0021] Figure 1 This is an axonometric view of the overall structure of the lithium battery assembly fixture of the present utility model;

[0022] Figure 2 This is a front view of the overall structure of the lithium battery assembly fixture of the present utility model;

[0023] Figure 3 This is a schematic structural view of the clamping block connection mechanism of the lithium battery assembly fixture of the present utility model.

[0024] Explanation of reference numerals:

[0025] 1. Base; 2. Clamping mechanism; 21. First clamping structure; 211. Base; 212. Clamping block connection mechanism; 2121. Sleeve; 2122. Expansion structure; 2123. Limit pin; 2124. Compression spring; 2125. Handle; 2126. Metal elastic sheet; 2127. Wedge block; 213. Clamping block; 2131. Matching hole; 22. Second clamping structure; 23. Translation mechanism; 3. Positioning mechanism; 31. Lifting mechanism; 32. Positioning block; 33. Positioning connection mechanism. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Those skilled in the art should know that the embodiments described below are a part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.

[0027] In the existing technology, the existing fixture for lithium battery assembly production mainly connects the clamping block and the base through bolts. When changing the production specifications, the steps of replacing the clamping block take a relatively long time and the workload is relatively large. In this solution, the bolt connection structure is optimized into an expansion connection mechanism. When disassembling and assembling the clamping block, pull the handle, and the limit pin will withdraw accordingly. The expansion structure loses the internal pressure and then rebounds and contracts inward, and the clamping block can be quickly disassembled. When installing the clamping block, connect the matching hole of the clamping block with the expansion structure, release the handle, and the limit pin is squeezed towards the expansion structure end under the action of the compression spring, and the expansion structure expands to realize the quick fixation of the base and the clamping block.

[0028] After introducing the basic principle of the present utility model, the various non-limiting implementation manners of the present utility model will be specifically introduced below. The number of any element in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.

[0029] Next, referring to several representative implementation manners of the present utility model, the principle and spirit of the present utility model will be elaborated in detail.

[0030] Embodiment 1 of the lithium battery assembly fixture provided by the present utility model:

[0031] As Figure 1 and Figure 2 shown, the lithium battery assembly fixture includes a base 1, a clamping mechanism 2 and a positioning mechanism 3.

[0032] As Figure 1 and Figure 2 shown, a clamping structure 2 is connected to the base 1. The clamping mechanism 2 includes a first clamping structure 21 and a second clamping structure 22 connected to both ends of the base. The first clamping structure 21 is fixedly connected to the base 1, and the second clamping structure 22 is slidably assembled on the base 1 through a translation mechanism 23. In this embodiment, the translation mechanism 23 is a rodless cylinder. The first clamping structure 21 includes a base 211, and a clamp block connection mechanism 212 is installed on the base 211. The clamp block connection mechanism 212 is connected to a clamp block 213 for clamping the lithium battery. The clamp block 213 has a mating hole 2131 that cooperates with the clamp block connection mechanism 212 for connection and fixation. The structure of the second clamping structure 22 is the same as that of the first clamping structure 21.

[0033] As Figure 2 and Figure 3 shown, the clamp block connection mechanism 212 includes a sleeve 2121 horizontally installed on the base 211. An expansion structure 2122 is provided at one end of the sleeve 2121 close to the second clamping structure 22. The expansion structure 2123 includes metal elastic sheets 2126 circumferentially and spaced apart along the sleeve 2121. A wedge block 2127 is integrally formed on the inner side of the metal elastic sheet 2126. A limit pin 2123 for expanding the expansion structure 2122 is slidably assembled in the sleeve 2121. A compression spring 2124 is sleeved on the limit pin 2123. There are two limit pins 2123, which are fixedly connected by a handle 2125. When disassembling and assembling the clamp block 213, pull the handle 2125, and the limit pin 2123 will withdraw accordingly. The expansion structure 2122 loses internal pressure and then rebounds and contracts inward, and the clamp block 213 can be quickly disassembled. When installing the clamp block 213, the mating hole 2131 on the clamp block 213 is connected to the expansion structure 2122 in a mating manner. Release the handle 2125, and the limit pin 2123 is squeezed towards the expansion structure 2122 end under the action of the compression spring 2124, and the expansion structure 2122 expands to achieve rapid fixation of the base 211 and the clamp block 213.

[0034] As Figure 1 and Figure 2As shown in the figure, the positioning mechanism 3 is between the first clamping structure 21 and the second clamping structure 22, and includes a lifting mechanism 31 fixedly installed on the base 1. The lifting structure 31 is a lifting cylinder. A positioning connection mechanism 33 is longitudinally installed at the top of the lifting mechanism 31. The structure of the positioning connection mechanism 33 is the same as that of the clamp block connection mechanism 212. The positioning connection mechanism 33 is detachably connected with a positioning block 32. The positioning block 32 is provided with a mating hole 2131 for the positioning connection mechanism 33 and a positioning groove for positioning the lithium battery.

[0035] As Figure 2 shown in the figure, the positioning mechanism 3 preliminarily positions the lithium battery grabbed by the robotic arm through the positioning groove on the positioning block 32. At this time, the rodless cylinder drives the second clamping structure 22 to horizontally move towards the first clamping structure 21 to realize the fixed clamping of the lithium battery by the clamping mechanism 2. After the lithium battery is clamped by the clamping mechanism, the lifting cylinder drives the positioning block to descend, and the positioning block is separated from the lithium battery, and the positioning is released, so as to remove dust and apply glue to the surface of the lithium battery.

[0036] Embodiment 2 of the lithium battery assembly fixture provided by the present utility model:

[0037] The main difference from Embodiment 1 is that:

[0038] In Embodiment 1, the handle 2125 and the two limit pins 2123 are detachably connected by bolts.

[0039] In this embodiment, the handle 2125 and the two limit pins 2123 are integrally formed, which increases the stability between the handle 2125 and the limit pins 2123. However, correspondingly, when the limit pins 2123 are damaged, only the clamp block connection mechanism 212 or the positioning connection mechanism 33 can be replaced as a whole, increasing the material loss.

[0040] Although this specification has shown and described multiple embodiments of the present utility model, it is obvious to those skilled in the art that such embodiments are provided only by way of example. Those skilled in the art will think of many changes, alterations, and alternative ways without departing from the spirit and concept of the present utility model. It should be understood that various alternative solutions of the embodiments of the present utility model described herein can be adopted in the process of practicing the present utility model. The appended claims are intended to define the protection scope of the present utility model and thus cover the module compositions, equivalents, or alternative solutions within the protection scope of these claims.

Claims

1. A fixture for lithium battery assembly, comprising: Base (1); The invention is characterized in that a clamping mechanism (2) for clamping and fixing a lithium battery is provided on the base (1), the clamping mechanism (2) comprising a first clamping structure (21) and a second clamping structure (22) mounted at two ends of the base (1), the first clamping structure (21) being fixedly connected to the base (1), and the second clamping structure (22) being slidably assembled on the base (1) via a translation mechanism (23); The first clamping structure (21) comprises a base (211), a clamping block connecting mechanism (212) is mounted on the base (211), the clamping block connecting mechanism (212) is connected to a clamping block (213) for clamping a lithium battery, the clamping block connecting mechanism (212) comprises a sleeve (2121) mounted horizontally on the base (211), an expansion structure (2122) is provided at one end of the sleeve (2121) close to the second clamping structure (22), a limiting pin (2123) for propping up the expansion structure (2122) is slidably mounted in the sleeve (2121), and a compression spring (2124) is sleeved on the limiting pin (2123); The structure of the second clamping structure (22) is the same as that of the first clamping structure (21); A positioning mechanism (3) is arranged between the first clamping structure (21) and the second clamping structure (22), the positioning mechanism (3) being used to position the lithium battery, the positioning mechanism (3) comprising a lifting mechanism (31) fixedly mounted on the base (1), a positioning connection mechanism (33) being longitudinally mounted on the top of the lifting mechanism (31), the structure of the positioning connection mechanism (33) being the same as that of the clamping block connection mechanism (212), the positioning connection mechanism (33) being detachably connected to a positioning block (32), the positioning block (32) being provided with a positioning groove for positioning the lithium battery.

2. The fixture for assembling lithium batteries according to claim 1, characterized in that: The translation mechanism (23) is a rodless cylinder.

3. The fixture for assembling lithium batteries according to claim 1, characterized in that: The lifting mechanism (31) is a lifting cylinder.

4. The fixture for assembling lithium batteries according to claim 1, characterized in that: The expansion structure (2122) comprises metal elastic sheets (2126) distributed at intervals along the circumference of the sleeve (2121), and a wedge block (2127) is connected to the inner side of the metal elastic sheet (2126).

5. The fixture for assembling a lithium battery according to claim 1, wherein two of the sleeve (2121) and two of the limit pins (2123) installed in the sleeve (2121) are provided.

6. The fixture for assembling lithium batteries according to claim 4, characterized in that: The clamping block (213) and the positioning block (32) are provided with matching holes (2131) for facilitating fixation.

7. The fixture for assembling a lithium battery according to claim 4, wherein the two limit pins (2123) are connected by a handle (2125) so that the limit pins (2123) can be taken out simultaneously.

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