Positioning tool for processing battery pack sleeve

Abstract

This utility model discloses a positioning fixture for processing battery pack sleeves, including a base plate. Positioning fixtures are fixedly installed at both ends of the base plate, and a battery pack is placed between the positioning fixtures. A PVC heat-shrink sleeve is fitted over the outer side of the battery pack. This utility model uses a mechanical snap-fit ​​structure to fix the locking plate, resulting in a stable and reliable structure. Compared to prior art, it is less susceptible to accidental detachment due to external temperature or elasticity, thus helping the battery pack sleeve maintain a stable positioning state during heat shrinking and preventing displacement. By using a sliding rod, pressure plate, and spring, pressure can be applied between the heat-shrink sleeve and the battery pack, ensuring uniform contact between the sleeve and the battery pack surface during heat shrinking, avoiding localized loosening or wrinkling. Furthermore, the sleeve may undergo slight deformation due to temperature changes during heat shrinking; the spring's elasticity can adaptively compensate for this, maintaining stable pressure and preventing displacement.

Description

Technical Field

[0001] This utility model relates to the technical field of battery pack processing equipment, specifically a positioning fixture for processing battery pack sleeves. Background Technology

[0002] Battery pack sleeves are sleeves used to protect battery packs. They are usually made of PVC heat shrink tubing and have the property of shrinking when heated. They are widely used in various lithium batteries, nickel-metal hydride batteries, nickel-cadmium batteries, etc. Their main functions include insulation, moisture protection, corrosion protection, and dust protection. They can beautify the appearance of the battery and protect it from the influence of the external environment. During the processing of battery pack sleeves, positioning fixtures can be used to position and clamp the battery pack sleeves to ensure accurate heat shrinking.

[0003] The prior art, disclosed in patent document CN220699345U, provides the following technical solution: a heat shrink tubing positioning fixture, relating to the field of high-voltage wire harness technology; comprising a base, wherein positioning seats are fixed on the top of the base near both sides, and a first placement groove is provided on the top of each of the two positioning seats; a support seat is provided between the two positioning seats, and a second placement groove is provided on the top of the support seat; a stop block is fixed in the placement groove of each of the two positioning seats; a baffle is provided on the side of the positioning seat near the support seat, and a slot is provided on the top of the baffle.

[0004] The above technical solution uses a magnet to press the movable plate onto the positioning seat. During the pressing process, the upper and lower grooves merge into an ellipse, causing the wire harness to generate a rebound force to return to a circular shape. If the magnetic attraction is insufficient to counteract this force, the movable plate may loosen. Furthermore, the magnetic force of the magnet decreases during the heating process, which further leads to an insufficiently firm connection between the movable plate and the positioning seat, thereby affecting the heat shrinking of the heat shrink tubing. Utility Model Content

[0005] The purpose of this utility model is to provide a positioning tooling for processing battery pack sleeves, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for processing battery pack sleeves, including a base plate, with positioning fixtures fixedly installed at both ends of the base plate, a battery pack placed between the positioning fixtures, and a PVC heat shrink sleeve fitted on the outside of the battery pack.

[0007] The positioning fixture includes a positioning bracket. A support plate is movably connected to one side of the upper end of the positioning bracket via a hinge. A locking plate is fixedly connected to the bottom of the other side of the support plate. The locking plate has slots on both its front and rear sides. A locking groove is formed at the top of the other side of the positioning bracket. An i-shaped mounting groove is formed below the locking groove. A screw is provided below the i-shaped mounting groove. The screw has opposite threads on both sides. Movable plates are threaded to the outer walls of both sides of the screw. The movable plates extend upward to above the i-shaped mounting groove. A snap-fit ​​protrusion is fixedly connected between the two movable plates. A through groove is formed between the side walls of the i-shaped mounting groove and the locking groove. The snap-fit ​​protrusion passes through the through groove and snaps into the slot.

[0008] In the above technical solution, a mechanical snap-fit ​​structure is set to fix the locking plate. The structure is stable and reliable. Compared with the prior art, it is less susceptible to accidental detachment caused by external temperature or elasticity. This helps the battery pack sleeve maintain a stable positioning during the heat shrinking process and makes it less likely for the heat shrink sleeve to shift.

[0009] As a further preferred embodiment of this technical solution, a sliding rod is slidably connected to each through hole above the support plate, a pressure plate is fixedly connected to the bottom of the sliding rod, a spring is sleeved between the pressure plate and the support plate and on the outside of the sliding rod, and a top plate is fixedly connected to the top side of the sliding rod.

[0010] In the above technical solution, pressure can be applied between the heat shrink tubing and the battery pack to ensure uniform contact between the tubing and the battery pack surface during the heat shrinking process, avoiding local loosening or wrinkling. Furthermore, the tubing may undergo slight deformation due to temperature changes during the heat shrinking process, and the elasticity of the spring can adaptively compensate for this, maintaining stable pressure and preventing displacement.

[0011] As a further preferred embodiment of this technical solution, the side walls of both sides of the support plate are provided with sliding grooves, and the inner walls of the sliding grooves are slidably connected to the outer walls of both ends of the top plate.

[0012] As a further preferred embodiment of this technical solution, ventilation holes are arranged at the bottom of the pressure plate and the positioning bracket.

[0013] In the above technical solution, the ventilation holes can maintain ventilation during the subsequent heat shrinking of the heat shrink tubing, and prevent hot air from failing to reach the outer surface of the tubing.

[0014] As a further preferred embodiment of this technical solution, a limiting groove is provided in the middle of the bottom side of the C-shaped mounting groove, and limiting blocks are slidably connected to both ends of the limiting groove, and the limiting blocks are fixedly connected to the bottom side of the movable plate.

[0015] The above technical solution can limit the rotation of the screw, so that the movable plate can move stably.

[0016] As a further preferred embodiment of this technical solution, a knob is provided on one side of the screw, and the knob is located outside the positioning bracket.

[0017] As a further preferred embodiment of this technical solution, the locking plate is engaged with the locking groove.

[0018] This utility model provides a positioning fixture for processing battery pack sleeves, which has the following advantages: (1) This utility model fixes the locking plate by setting a mechanical snap-fit ​​structure, which is stable and reliable. Compared with the prior art, it is less susceptible to accidental detachment caused by external temperature or elasticity, which helps the battery pack sleeve maintain a stable positioning state during the heat shrinking process and makes it less likely for the heat shrink sleeve to shift.

[0019] (2) By setting a sliding rod, a pressure plate and a spring, this utility model can apply pressure between the heat shrink tubing and the battery pack, ensuring that the tubing and the battery pack surface are in uniform contact during the heat shrinking process, avoiding local loosening or wrinkling. Furthermore, the tubing may undergo slight deformation due to temperature changes during the heat shrinking process, and the elasticity of the spring can adaptively compensate for this, maintaining stable pressure and preventing deviation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the positioning tooling of this utility model; Figure 3 This is an enlarged view of Figure A of this utility model; Figure 4 This is a partial cross-sectional view of the positioning bracket of this utility model; Figure 5 This is an enlarged view of Figure B of this utility model; In the diagram: 1. Base plate; 2. Positioning fixture; 3. Battery pack; 4. PVC heat shrink tubing; 21. Positioning bracket; 22. Support plate; 221. Slide groove; 23. Slide rod; 24. Pressure plate; 25. Spring; 26. Top plate; 27. Ventilation hole; 28. Locking plate; 281. Slot; 29. ​​Locking groove; 291. C-shaped mounting groove; 292. Screw; 293. Movable plate; 294. Snap-fit ​​protrusion; 295. Through groove; 296. Limiting block; 297. Limiting groove. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figure 1As shown in this embodiment, a positioning fixture for processing battery pack sleeves includes a base plate 1. The base plate 1 is fixed in a designated position by mounting holes and bolts around its perimeter. Positioning fixtures 2 are fixedly installed at both ends of the base plate 1. A battery pack 3 is placed between the positioning fixtures 2. A PVC heat shrink sleeve 4 is sleeved on the outside of the battery pack 3. The PVC heat shrink sleeve 4 shrinks when heated and has insulation, moisture-proof, corrosion-proof and dust-proof properties, which can beautify the appearance of the battery and protect the battery from the influence of the external environment.

[0023] like Figure 4 and Figure 5 As shown, the positioning fixture 2 includes a positioning bracket 21. A support plate 22 is movably connected to one side of the upper end of the positioning bracket 21 via a hinge. A locking plate 28 is fixedly connected to the bottom of the other side of the support plate 22. The locking plate 28 has slots 281 on both its front and rear sides. A locking groove 29 is formed at the top of the other side of the positioning bracket 21. An inverted mounting groove 291 is formed below the locking groove 29. A screw 292 is installed below the inverted mounting groove 291. The threads on both sides of the screw 292 are opposite in direction. A knob is located on one side of the screw 292. When the user rotates the knob, the screw 292 rotates, causing the movable plates 293 on both sides to face each other. This allows the locking protrusion 294 to pass through the through groove 295 and insert into the slot 281, achieving mechanical fixation of the support plate 22. The operation is simple and easy to learn. The knob is located outside the positioning bracket 21, and the outer walls of both sides of the screw 292 are threaded together. The movable plate 293 has a limiting groove 297 in the middle of the bottom side of the C-shaped mounting groove 291. Both ends of the limiting groove 297 are slidably connected to limiting blocks 296, which are fixedly connected to the bottom side of the movable plate 293. The movable plate 293 extends upward above the C-shaped mounting groove 291. A snap-fit ​​protrusion 294 is fixedly connected between the two movable plates 293. A through groove 295 is opened between the side wall of the C-shaped mounting groove 291 and the locking groove 29. The snap-fit ​​protrusion 294 passes through the through groove 295 and snaps into the snap-fit ​​groove 281. The locking plate 28 snaps into the locking groove 29. The locking plate 28 is fixed by the mechanical snap-fit ​​structure. The structure is stable and reliable. Compared with the prior art, it is less susceptible to accidental detachment caused by external temperature or elasticity. This is conducive to maintaining a stable positioning state of the battery pack sleeve during heat shrinking and is less likely to cause displacement of the heat shrink sleeve.

[0024] like Figure 2 and Figure 3As shown, slide rods 23 are slidably connected to the through holes above the support plate 22. A pressure plate 24 is fixedly connected to the bottom of the slide rod 23. A spring 25 is sleeved between the pressure plate 24 and the support plate 22 and outside the slide rod 23. A top plate 26 is fixedly connected to the top side of the slide rod 23. Slide grooves 221 are opened on both sides of the support plate 22. The inner wall of the slide groove 221 is slidably connected to the outer walls of both ends of the top plate 26. Ventilation holes 27 are arranged at the bottom of the pressure plate 24 and the positioning bracket 21. The ventilation holes 27 can maintain ventilation during the heat shrinking of the heat shrink tubing and prevent hot air from not reaching the outer surface of the tubing. By setting the slide rods 23, pressure plates 24 and springs 25, pressure can be applied between the heat shrink tubing and the battery pack to ensure uniform contact between the tubing and the battery pack surface during the heat shrinking process, avoiding local loosening or wrinkling. In addition, the tubing may undergo slight deformation due to temperature changes during the heat shrinking process. The elasticity of the spring can adaptively compensate for this, maintain stable pressure, and prevent displacement.

[0025] This utility model provides a positioning fixture for battery pack sleeve processing. The specific working principle is as follows: PVC heat shrink tubing 4 is sleeved on the battery pack 3, and then positioned in the positioning fixtures 2 at both ends. The support plate 22 is closed so that the locking plate 28 is engaged in the locking groove 29. The user rotates the knob to drive the screw 292 to rotate, so that the movable plates 293 on both sides face one side, so that the locking protrusion 294 passes through the through groove 295 and is inserted into the slot 281, realizing the mechanical fixation of the support plate 22. After fixation, the pressure plate 24 is pressed against the PVC heat shrink tubing 4 under the action of the spring 25. Then, the PVC heat shrink tubing 4 is heat-shrinked by a hot air blower so that it wraps around the battery pack 3. Subsequently, the knob is reversed so that the movable plates 293 on both sides move in opposite directions until the locking protrusion 294 moves away from the slot 281. Then the support plate 22 can be rotated to take out the heat-shrinked battery pack.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning fixture for processing battery pack sleeves, comprising a base plate (1), characterized in that: The base plate (1) is fixedly installed with positioning fixtures (2) at both ends, and a battery pack (3) is placed between the positioning fixtures (2). A PVC heat shrink sleeve (4) is fitted on the outside of the battery pack (3). The positioning fixture (2) includes a positioning bracket (21). A support plate (22) is movably connected to one side of the upper end of the positioning bracket (21) via a hinge. A locking plate (28) is fixedly connected to the bottom of the other side of the support plate (22). The locking plate (28) has slots (281) on both the front and rear sides. A locking groove (29) is provided at the top of the other side of the positioning bracket (21). A U-shaped mounting groove (291) is provided below the locking groove (29). A screw is provided below the U-shaped mounting groove (291). The screw (292) has opposite thread directions on both sides. The outer walls of both sides of the screw (292) are threaded with movable plates (293). The movable plates (293) extend upward to the top of the U-shaped mounting groove (291). The two movable plates (293) are fixedly connected with snap-fit ​​protrusions (294). The U-shaped mounting groove (291) and the side wall of the locking groove (29) are provided with through grooves (295). The snap-fit ​​protrusions (294) pass through the through grooves (295) and snap into the snap-fit ​​grooves (281).

2. The positioning fixture for processing battery pack sleeves according to claim 1, characterized in that: A sliding rod (23) is slidably connected to the through hole above the support plate (22). A pressure plate (24) is fixedly connected to the bottom of the sliding rod (23). A spring (25) is sleeved between the pressure plate (24) and the support plate (22) and on the outside of the sliding rod (23). A top plate (26) is fixedly connected to the top side of the sliding rod (23).

3. The positioning fixture for processing battery pack sleeves according to claim 1, characterized in that: The support plate (22) has sliding grooves (221) on both sides of its sidewalls, and the inner wall of the sliding groove (221) is slidably connected to the outer walls of both ends of the top plate (26).

4. The positioning fixture for processing battery pack sleeves according to claim 2, characterized in that: Ventilation holes (27) are arranged at the bottom of the pressure plate (24) and the positioning bracket (21).

5. The positioning fixture for processing battery pack sleeves according to claim 1, characterized in that: A limiting groove (297) is provided in the middle of the bottom side of the C-shaped mounting groove (291). Both ends of the limiting groove (297) are slidably connected to limiting blocks (296), and the limiting blocks (296) are fixedly connected to the bottom side of the movable plate (293).

6. The positioning fixture for processing battery pack sleeves according to claim 1, characterized in that: A knob is provided on one side of the screw (292), and the knob is located outside the positioning bracket (21).

7. The positioning fixture for processing battery pack sleeves according to claim 1, characterized in that: The locking plate (28) engages with the locking groove (29).

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