Fixing device for processing plastic shell of low-voltage electric appliance

By designing a cylinder-driven telescopic rod and a gear rack structure, the problem of wobbling during processing of irregular low-voltage electrical appliance plastic shells was solved, achieving stable clamping and efficient processing results.

CN223776970UActive Publication Date: 2026-01-09KUNSHAN YINXINFENG PRECISION MOLD CO LTD
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Patent Information

Application Number
CN202520027859.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2026-01-09
Estimated Expiration
2035-01-02

AI Technical Summary

Technical Problem

Existing fixing devices are prone to shaking or instability when clamping irregularly shaped or uneven plastic housings of low-voltage electrical appliances, affecting the stability and efficiency of processing.

Method used

A fixing device comprising a cylinder, a fixed shell, a connecting shell, and a gear and rack structure is designed. By cooperating with the telescopic rod driven by the cylinder and the spring, and utilizing the gear and rack transmission and the inclined plane structure, a stable clamping of irregular plastic shells is achieved, increasing the contact area between the clamping surface and the shell.

Benefits of technology

It effectively avoids shaking during processing, ensuring processing stability and efficiency, and preventing damage to the plastic shell.

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Abstract

The utility model relates to the technical field of low-voltage electric appliance plastic shell processing, and discloses a fixing device for low-voltage electric appliance plastic shell processing, which comprises a base, the top of the base is fixedly connected with a fixing block, and the inside of the fixing block is fixedly connected with an air cylinder. The irregular surface of the plastic shell of the low-voltage electric appliance pushes part of the telescopic rod to extrude the second spring to be shortest, and part of the telescopic rod does not extrude the second spring to be shortest, so that the part of the telescopic rod which extrudes the second spring to be shortest pushes the connecting shell to move towards the interior of the fixed shell, and the connecting shell drives the first gear to rotate on the first rack plate; when the machining fixture is in use, the inclined surface on the moving block extrudes the inclined surface on the movable plate, the movable plate is pushed to move downwards, and the telescopic rod is clamped and fixed by the movable plate and the fixed plate, so that the contact surface of the clamping surface of the machining fixture and the plastic shell of the low-voltage electric appliance is increased, and the machining fixture is prevented from shaking or being unstable in the machining process; and therefore, the machining stability and efficiency are ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to low voltage electrical apparatus plastic shell processing technical field, specifically for a kind of low voltage electrical apparatus plastic shell processing is with fixing device. BACKGROUND

[0002] Low voltage electrical apparatus plastic shell refers to the external protective shell for low voltage electrical apparatus, usually made of plastic material, these shells not only provide physical protection, but also have a variety of functions and characteristics;Commonly used materials for low voltage electrical apparatus plastic shell include ABS, PC, PA, etc. ABS plastic has high strength, high toughness and good electrical properties, suitable for various environments;PC plastic has excellent electrical insulation, heat resistance and chemical corrosion resistance, while PA plastic has high strength and wear resistance;The choice of these materials depends on the specific application requirements and environmental conditions.

[0003] The existing fixing device may cause the processing clamp to shake or be unstable during processing when clamping and fixing the workpiece, thereby affecting the stability and efficiency of processing, because the clamping surface of the processing clamp is a plane, and some low voltage electrical apparatus plastic shells are irregular in shape or have uneven surfaces. SUMMARY

[0004] To achieve the above object, the utility model provides a kind of fixing device for low voltage electrical apparatus plastic shell processing.

[0005] The technical scheme of the utility model is realized as follows: a kind of fixing device for low voltage electrical apparatus plastic shell processing, including base, the base top is fixedly connected with fixed block, the fixed block is fixedly connected with cylinder in the inside, the cylinder is provided with the fixed mechanism for fixing irregular workpiece on it, the cylinder one side is fixedly connected with fixed shell, the fixed shell is slidably connected with connecting shell in the inside, the fixed shell is fixedly connected with first spring in the inside, the fixed shell is fixedly connected with first rack plate in the inside, the connecting shell is slidably connected with telescopic link in the inside, the connecting shell is rotatably connected with rotating rod in the inside, the rotating rod top is fixedly connected with first gear, the rotating rod outer circular surface is fixedly connected with second gear, the connecting shell is slidably connected with second sliding block in the inside, the second sliding block one side is fixedly connected with moving block, the moving block one side is fixedly connected with second rack plate, the connecting shell is fixedly connected with fixed plate in the inside, the connecting shell is fixedly connected with second spring in the inside, the connecting shell is fixedly connected with fixed column in the inside, the fixed column is slidably connected with connecting rod in the inside, the connecting rod is fixedly connected with movable plate outside, the movable plate bottom is provided with arc slot, the fixed column is provided with third spring in the inside, and located at the bottom of connecting rod.

[0006] Preferably, the first spring is fixedly connected with the connecting shell, and the fixed plate is provided with a groove, and the telescopic rod and the second spring are located in the groove.

[0007] Preferably, the first rack plate is in meshing connection with the first gear, and the second gear is in meshing connection with the second rack plate.

[0008] Preferably, the moving block is provided with a slope at one end, and the movable plate is provided with a slope at both ends.

[0009] Preferably, the second sliding block is in a T shape.

[0010] Preferably, the telescopic rod is fixedly connected with a rubber head at one side.

[0011] Preferably, a sliding groove is formed in the fixed shell, a first sliding block in a T shape is fixedly connected at one end of the connecting shell, and the first sliding block is in sliding connection with the sliding groove in the fixed shell.

[0012] Preferably, a motor is fixedly connected inside the base, and a placing table is rotatably connected inside the base, and the motor is fixedly connected with the placing table.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] The fixing device for processing low-voltage electric appliance plastic shell pushes the telescopic rod to extrude the second spring to the shortest through the irregular surface of the low-voltage electric appliance plastic shell, and also makes part of the telescopic rod not extrude the second spring to the shortest, pushes the connecting shell to move into the fixed shell through the telescopic rod extruding the second spring to the shortest, drives the first gear to rotate on the first rack plate through the connecting shell, drives the rotating rod and the second gear to rotate through the first gear, drives the second rack plate to move through the second gear, drives the moving block and the second sliding block to move through the second rack plate, extrudes the slope on the moving block to the slope on the movable plate, pushes the movable plate to move downwards, and the arc-shaped groove on the movable plate is attached to the outer cylindrical surface of the telescopic rod. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a connecting shell related position schematic view of the utility model;

[0017] Figure 3 It is a first rack plate related position schematic view of the utility model;

[0018] Figure 4 It is a first gear related position schematic view of the utility model;

[0019] Figure 5 is a related position diagram of the utility model connecting rod;

[0020] Figure 6 is a related position diagram of the utility model connecting rod;

[0021] Figure 7 is a related position diagram of the utility model third spring;

[0022] Figure 8 is a related position diagram of the utility model second rack plate;

[0023] Figure 9 is a related position diagram of the utility model motor.

[0024] In the drawings, various reference signs represent:

[0025] 1, base; 2, fixed block; 3, air cylinder; 4, fixed mechanism; 401, fixed shell; 402, connecting shell; 403, first spring; 404, sliding slot; 405, first rack plate; 406, telescopic rod; 407, first sliding block; 408, first gear; 409, rotating rod; 410, second gear; 411, moving block; 412, second rack plate; 413, second sliding block; 414, fixed plate; 415, second spring; 416, movable plate; 417, arc-shaped slot; 418, connecting rod; 419, fixed column; 420, third spring; 5, rubber head; 6, placing table; 7, motor. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] For example, Figures 1-9As shown, the fixing device for processing low-voltage electrical plastic shell provided by the embodiment comprises a base 1, the top of the base 1 is fixedly connected with a fixing block 2, the inside of the fixing block 2 is fixedly connected with a gas cylinder 3, the gas cylinder 3 is provided with a fixing mechanism 4 for fixing irregular workpieces, one side of the gas cylinder 3 is fixedly connected with a fixed shell 401, the inside of the fixed shell 401 is slidably connected with a connecting shell 402, the inside of the fixed shell 401 is fixedly connected with a first spring 403, the inside of the fixed shell 401 is fixedly connected with a first rack plate 405, the inside of the connecting shell 402 is slidably connected with a telescopic rod 406, the inside of the connecting shell 402 is rotatably connected with a rotating rod 409, the top of the rotating rod 409 is fixedly connected with a first gear 408, the outer circular surface of the rotating rod 409 is fixedly connected with a second gear 410, the inside of the connecting shell 402 is slidably connected with a second sliding block 413, one side of the second sliding block 413 is fixedly connected with a moving block 411, one side of the moving block 411 is fixedly connected with a second rack plate 412, the inside of the connecting shell 402 is fixedly connected with a fixed plate 414, the inside of the connecting shell 402 is fixedly connected with a second spring 415, the inside of the connecting shell 402 is fixedly connected with a fixed column 419, the inside of the fixed column 419 is slidably connected with a connecting rod 418, the outside of the connecting rod 418 is fixedly connected with a movable plate 416, the bottom of the movable plate 416 is provided with an arc-shaped groove 417, the inside of the fixed column 419 is provided with a third spring 420, and the third spring 420 is located at the bottom of the connecting rod 418.

[0028] Further, the first spring 403 is fixedly connected with the connecting shell 402, a groove is formed in the fixed plate 414, and the telescopic rod 406 and the second spring 415 are located in the groove.

[0029] Through the above technical scheme, when the telescopic rod 406 passively extrudes the second spring 415 to the shortest, the connecting shell 402 is driven to move, so that the connecting shell 402 extrudes the first spring 403, and when the fixing mechanism 4 is not fixed to the workpiece, the first spring 403 and the second spring 415 reset the connecting shell 402 and the telescopic rod 406.

[0030] Further, the first rack plate 405 is engaged with the first gear 408, and the second gear 410 is engaged with the second rack plate 412.

[0031] Through the above technical scheme, when the connecting shell 402 drives the first gear 408 to move, the first gear 408 rotates through the first rack plate 405, the first gear 408 drives the rotating rod 409 to rotate, the rotating rod 409 drives the second gear 410 to rotate, and the second gear 410 drives the second rack plate 412 to move.

[0032] Further, one end of the moving block 411 is provided with an inclined surface, and both ends of the movable plate 416 are provided with inclined surfaces.

[0033] By adopting the technical scheme, the second rack plate 412 drives the moving block 411 to move, so that the inclined surface on the moving block 411 is attached to the inclined surface on the movable plate 416, and the moving block 411 pushes the movable plate 416 to move downward.

[0034] Further, the second sliding block 413 is in a "T" shape.

[0035] By adopting the technical scheme, the second sliding block 413 makes the moving block 411 stable during movement.

[0036] Further, one side of the telescopic rod 406 is fixedly connected with a rubber head 5.

[0037] By adopting the technical scheme, the rubber head 5 can play a buffering role between the telescopic rod 406 and the low-voltage electrical appliance plastic shell, preventing the low-voltage electrical appliance plastic shell from being damaged.

[0038] Further, the fixed shell 401 is internally provided with a sliding groove 404, one end of the connecting shell 402 is fixedly connected with a first sliding block 407, the first sliding block 407 is in a "T" shape, and the first sliding block 407 is slidably connected with the sliding groove 404 on the fixed shell 401.

[0039] By adopting the technical scheme, the first sliding block 407 makes the connecting shell 402 stable during movement.

[0040] Further, the base 1 is internally fixedly connected with a motor 7, and the base 1 is internally rotatably connected with a placing table 6, and the motor 7 is fixedly connected with the placing table 6.

[0041] By adopting the technical scheme, the motor 7 drives the placing table 6 to rotate, so that the materials on the placing table 6 and the low-voltage electrical appliance plastic shell rotate synchronously, so as to process different sides of the low-voltage electrical appliance plastic shell.

[0042] Working principle: after the staff places the low-voltage electrical plastic shell on the placing table 6, the cylinder 3 is started, the cylinder 3 extends the fixing mechanism 4, the fixing mechanism 4 approaches the low-voltage electrical plastic shell, when the rubber head 5 on the telescopic rod 406 contacts the irregular surface of the low-voltage electrical plastic shell, the low-voltage electrical plastic shell pushes the telescopic rod 406 to move into the connecting shell 402, the telescopic rod 406 extrudes the second spring 415, due to the irregular surface of the low-voltage electrical plastic shell, part of the telescopic rod 406 extrudes the second spring 415 to the shortest, also part of the telescopic rod 406 does not extrude the second spring 415 to the shortest, since the cylinder 3 is still extended, the part of the telescopic rod 406 that extrudes the second spring 415 to the shortest pushes the connecting shell 402 to move into the fixed shell 401, the connecting shell 402 drives the first sliding block 407 to slide in the sliding groove 404 on the fixed shell 401, the connecting shell 402 extrudes the first spring 403 in the fixed shell 401, at the same time, the connecting shell 402 drives the first gear 408 to move, the first gear 408 rotates through the first rack plate 405, so that the first gear 408 drives the rotating rod 409 and the second gear 410 to rotate, the second gear 410 drives the second rack plate 412 to move, the second rack plate 412 drives the moving block 411 and the second sliding block 413 to move, the inclined surface on the moving block 411 extrudes the inclined surface on the movable plate 416, so as to push the movable plate 416 to move downward, the movable plate 416 drives the connecting rod 418 to extrude the third spring 420 in the fixed column 419, at the same time, the arc-shaped groove 417 on the movable plate 416 is attached to the outer cylindrical surface of the telescopic rod 406, when the connecting shell 402 cannot move into the fixed shell 401 any more, the movable plate 416 and the fixed plate 414 fix the telescopic rod 406, so that the telescopic rod 406 cannot move due to the shaking of the low-voltage electrical plastic shell, so that the irregular low-voltage electrical plastic shell is fixed.

[0043] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the changes, modifications, equivalents, substitutions and variations of the embodiments can be made by those skilled in the art without departing from the spirit and principles of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fixing device for processing low-voltage electrical plastic housings, comprising a base (1), characterized in that: The base (1) top fixedly connected with fixed block (2), the fixed block (2) inside fixedly connected with air cylinder (3), the air cylinder (3) is provided with a fixing mechanism (4) for fixing irregular workpiece, the air cylinder (3) one side fixedly connected with fixed shell (401), the fixed shell (401) inside slidingly connected with connecting shell (402), the fixed shell (401) inside fixedly connected with first spring (403), fixed shell (401) inside fixedly connected with first rack plate (405), the connecting shell (402) inside slidingly connected with telescopic rod (406), the connecting shell (402) inside rotatably connected with rotating rod (409), the rotating rod (409) top fixedly connected with first gear (408), the rotating rod (409) outer circular face fixedly connected with second gear (410), the connecting shell (402) inside slidingly connected with second sliding block (413), the second sliding block (413) one side fixedly connected with moving block (411), the moving block (411) one side fixedly connected with second rack plate (412), the connecting shell (402) inside fixedly connected with fixed plate (414), the connecting shell (402) inside fixedly connected with second spring (415), the connecting shell (402) inside fixedly connected with fixed column (419), the fixed column (419) inside slidingly connected with connecting rod (418), the connecting rod (418) outside fixedly connected with movable plate (416), the movable plate (416) bottom is provided with arc slot (417), the fixed column (419) inside is provided with third spring (420), and located at the connecting rod (418) bottom.

2. The fixing device for processing low-voltage electrical plastic housings according to claim 1, characterized in that: The first spring (403) is fixedly connected with the connecting shell (402), recesses are formed in the fixed plate (414), and the telescopic rod (406) and the second spring (415) are located in the recesses.

3. The fixing device for processing low-voltage electrical plastic housings according to claim 1, characterized in that: The first rack plate (405) is engagedly connected with the first gear (408), and the second gear (410) is engagedly connected with the second rack plate (412).

4. The device according to claim 1, wherein: the device is used for fixing a low-voltage electrical appliance plastic shell during processing. The moving block (411) is provided with inclined surfaces at two ends, and the movable plate (416) is provided with inclined surfaces at two ends.

5. The device according to claim 1, wherein: the device is used for fixing a low-voltage electrical appliance plastic shell during processing. The second sliding block (413) is in the shape of "T".

6. The device according to claim 1, wherein: the device is used for processing a low-voltage electrical appliance plastic shell. The telescopic rod (406) is fixedly connected with a rubber head (5) on one side.

7. The device according to claim 1, wherein: the device is used for processing a low-voltage electrical appliance plastic shell. A sliding groove (404) is formed in the fixed shell (401), and a first sliding block (407) is fixedly connected to one end of the connecting shell (402), the first sliding block (407) is in the shape of "T", and the first sliding block (407) is slidingly connected with the sliding groove (404) in the fixed shell (401).

8. The device according to claim 1, wherein: the device is used for processing a low-voltage electrical appliance plastic shell. A motor (7) is fixedly connected to the base (1), and a placement table (6) is rotatably connected to the base (1), and the motor (7) is fixedly connected with the placement table (6).