Fixing clamp for paint spraying of die casting

By combining a rotating device and a flexible clamping assembly, the problem of scratches caused by repeated clamping of fixed clamps for painting die-cast parts is solved, realizing flexible fixing and precise rotation of die-cast parts, and improving the efficiency and accuracy of painting processing.

CN223888271UActive Publication Date: 2026-02-10NANTONG PROD QUALITY SUPERVISION & INSPECTION INST
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Patent Information

Application Number
CN202520313783.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-02-10
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Existing fixtures for painting die-cast parts are prone to surface scratches during repeated clamping and cannot adapt to die-cast parts of different heights and shapes, resulting in inaccurate machining.

Method used

A fixing fixture including a rotating device and a flexible clamping assembly was designed. The rotating shaft driven by the motor drives the rotating disk to rotate. Combined with the damper and spring of the flexible clamping assembly, the die-cast parts can be flexibly fixed and rotated to adapt to different surface shapes.

Benefits of technology

It reduces surface scratches, improves work efficiency, and can precisely fix and rotate die-cast parts to the appropriate angle, ensuring the accuracy of the painting process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223888271U_ABST
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Abstract

The fixing clamp comprises a base, four supporting columns are arranged at the bottom end of the base, a protection box is arranged in the middle of the bottom end of the base, a rotating device is arranged in the protection box, a rotating hole is formed in the middle of the top end of the base, a rotating shaft is arranged in the rotating hole, and a rotating disc is fixedly connected to the rotating shaft. Fixing frames are fixedly connected to the two sides of the top end of the rotating disc, two hydraulic telescopic cylinders are fixedly connected to the fixing frames, flexible clamp assemblies are arranged on the hydraulic telescopic cylinders, a connecting column is fixedly connected to the middle of the rear end of the base, a connecting plate is fixedly connected to the top of the front end of the connecting column, and a reinforcing plate is fixedly connected to the rear portion of the bottom end of the connecting plate; a nozzle is arranged on the front portion of the bottom end of the connecting plate and communicates with the outside through a connecting pipe. The die casting device has the advantages that the rotating device is designed, so that the rotating disc can drive a die casting to rotate to a designated position; and the flexible clamp assembly is designed, so that scratches generated on the surface of the die casting when the die casting is fixed are reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to die casting processing technical field, concretely points to a kind of die casting paint spraying with fixed clamp. BACKGROUND

[0002] Die casting is a metal casting process, mainly used for producing metal parts with complex geometry. This process involves pouring molten metal into a carefully designed mold under high pressure, and then cooling to form a solid metal part. Before the die casting is put into market, it needs to be painted, at this time a die casting paint spraying with fixed clamp is needed to ensure that the die casting remains fixed during the painting process.

[0003] Chinese patent CN221270921U discloses a die casting limiting block fixing jig, which belongs to the technical field of jigs. It includes a die casting, a plurality of reinforcing plates arranged on the top convex edge of the die casting, a platform assembly arranged below the die casting, a plurality of limiting assemblies connected to the platform assembly through bolts, and a plurality of limiting assemblies arranged on the top of each limiting assembly. The top of each limiting assembly is in contact with the top convex edge of the die casting, and each limiting assembly is located between two adjacent reinforcing plates. The die casting is placed on the top of each limiting assembly, and the top of each limiting plate is in contact with the top convex edge of the die casting. Each limiting plate is located between two adjacent reinforcing plates. The die casting is fixed by the cooperation of the plurality of clamp assemblies, and the die casting and the processing platform have a gap. The plurality of limiting assemblies horizontally position the die casting to prevent horizontal movement and friction between the die casting and the processing platform. However, there are still defects that can be improved.

[0004] 1. The utility model fixes the die casting by setting limiting assemblies and clamp assemblies on the processing platform. However, in reality, the die casting needs to be processed from all angles. If a fixed type is used, multiple clamping is required, which may cause scratches on the surface of the die casting, resulting in a failure to meet the processing requirements of the die casting.

[0005] 2. The utility model clamps the die casting by setting clamp assemblies on the processing platform. However, the heights of the clamp assemblies are consistent and cannot be changed. The surface height of most die castings is not always the same. If the height is consistent, it may cause excessive pressure on the surface of the part during compression or fail to fix it in place. UTILITY MODEL CONTENTS

[0006] The utility model solves the above problems and provides a die casting paint spraying with fixed clamp.

[0007] To solve the above technical problems, the utility model provides a technical scheme for a fixing clamp for die casting paint spraying, which comprises a base, support columns fixedly connected to the front and rear parts of both sides of the bottom end of the base, a protection box fixedly connected to the middle part of the bottom end of the base, a rotating device arranged in the protection box, a rotating hole opened in the middle part of the top end of the base, a rotating shaft bearing connected in the rotating hole, a rotating disc fixedly connected to the top end of the rotating shaft, fixed frames fixedly connected to both sides of the top end of the rotating disc, hydraulic telescopic cylinders with self-locking function fixedly connected to the front and rear parts of both sides of the fixed frames, flexible clamp assemblies arranged on both sides of the hydraulic telescopic cylinders, a connecting column fixedly connected to the middle part of the rear end of the base, a connecting plate fixedly connected to the top of the front end of the connecting column, a reinforcing plate fixedly connected to the bottom end of the rear part of the connecting plate, the rear end of the reinforcing plate fixedly connected to the connecting column, a spray head arranged on the front part of the bottom end of the connecting plate, the spray head communicated with the outside through a connecting pipe.

[0008] As an improvement, the rotating device comprises a worm wheel fixedly connected to the bottom end of the rotating shaft, a rotating shaft fixedly connected to the middle part of the bottom end of the worm wheel, and the bottom end of the rotating shaft is rotatably connected to the bottom wall of the protection box.

[0009] As an improvement, the front end of the worm wheel is engaged with a worm, rotating frames rotatably connected to both sides of the worm, and the bottom ends of both sides of the rotating frames are fixedly connected to the bottom wall of the protection box.

[0010] As an improvement, one side of the rotating frame is provided with a motor, the motor is fixedly connected to the bottom wall of the protection box through a motor base, and the output shaft of the motor penetrates the rotating frame and is fixedly connected with the worm.

[0011] As an improvement, the flexible clamp assembly comprises a fixed block fixedly connected to the side of the hydraulic telescopic cylinder away from the fixed frame, the bottom end of the fixed block is slidingly connected to the rotating disc, and a plurality of grooves are opened in the side of the fixed block away from the fixed frame.

[0012] As an improvement, a damper is fixedly connected to the side wall of the groove near the fixed frame, a sliding block is fixedly connected to the side of the damper away from the fixed frame, the sliding block is slidingly connected in the groove, a spring is arranged around the damper, and the two sides of the spring are fixedly connected to the side wall of the groove and the sliding block respectively.

[0013] As an improvement, a stud is arranged on the sliding block, and an abutting block is threadedly connected to the threaded part of the side of the stud away from the sliding block.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model discloses a rotating device is seted up in the protection case, and rotating device and rotating shaft cooperate and use. Through the drive of motor, finally realizes that rotating shaft can drive rotary plate to rotate, so that the clamp on rotary plate can drive die casting to rotate, reduces the scratch of surface because of multiple clamping, increases work efficiency simultaneously.

[0016] 2. The utility model discloses two flexible clamp components are seted up in the top of rotary plate. When the abutment block touches die casting, will compress corresponding damper and spring, at this moment, different abutment blocks will compress spring and damper to different degrees according to the shape of die casting surface, thereby reducing the damage of die casting surface because of over-tightening DRAWINGS

[0017] Figure 1 It is a kind of fixed clamp structure for die casting paint of the utility model.

[0018] Figure 2 It is a kind of fixed clamp perspective drawing for die casting paint of the utility model.

[0019] Figure 3 It is the structure diagram of rotating device in a kind of fixed clamp for die casting paint of the utility model.

[0020] Figure 4 It is the top view of part structure of a kind of fixed clamp for die casting paint of the utility model.

[0021] Figure 5 It is the enlarged view of a kind of fixed clamp for die casting paint of the utility model at A place.

[0022] As shown in the figure:

[0023] 1, base;2, support column;3, protection case;

[0024] 4, rotating device;401, worm wheel;402, rotating shaft;403, worm;404, rotating frame;405, motor;406, motor base;

[0025] 5, rotating hole;6, rotating shaft;7, rotary plate;

[0026] 8, fixed frame;9, hydraulic telescopic cylinder;

[0027] 10, flexible clamp component;1001, fixed block;1002, recess;1003, damper;1004, sliding block;1005, spring;1006, stud;1007, abutment block;

[0028] 11, connecting column;12, connecting plate;

[0029] 13, reinforcing plate;14, spray head. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings.

[0031] The working principle of this utility model is as follows: Figures 1-5 As shown, a fixing fixture for painting die-cast parts includes a base 1. A connecting plate 12 is firstly positioned above the base 1, with a connecting column 11 fixedly connected to the rear end of the connecting plate 12. The connecting column 11 is fixedly connected to the middle of the rear end of the base 1. To enhance the stability of the equipment, a reinforcing plate 13 is fixedly connected to the middle of the front end of the connecting column 11, with the top of the reinforcing plate 13 fixedly connected to the rear of the bottom end of the connecting plate 12. Simultaneously, a spray nozzle 14 for painting is positioned at the front of the bottom end of the connecting plate 12. Notably, the spray nozzle 14 is connected to the outside via a connecting pipe; that is, when paint is supplied from the outside into the connecting pipe, the spray nozzle 14 will spray paint onto the die-cast part. Then, a rotating disk 7 is positioned in the middle above the base 1, with fixing frames 8 fixedly connected to both sides of the top of the rotating disk 7. Hydraulic telescopic cylinders 9 are fixedly connected to the front and rear of the adjacent sides of the fixing frames 8. It has a built-in self-locking function. Then, flexible clamping components 10 are set on the adjacent sides of the hydraulic telescopic cylinders 9 on both sides. The effect achieved is that the die-casting part is placed between the rotating disks 7, and then the hydraulic telescopic cylinders 9 on both sides push the flexible clamping components 10 to the designated position. After the die-casting part is clamped, the self-locking function of the hydraulic telescopic cylinders 9 provides continuous pressure to achieve the purpose of continuous clamping. In order to make the rotating disk 7 rotate, a rotating hole 5 is opened in the middle of the top of the base 1, and a rotating shaft 6 is connected to the rotating hole 5 by a bearing. The top of the rotating shaft 6 is fixedly connected to the middle of the bottom of the rotating disk 7. Then, a protective box 3 is fixedly connected to the middle of the bottom of the base 1. A rotating device 4 is set in the protective box 3, and the rotating device 4 works with the rotating shaft 6 to enable the rotating shaft 6 to drive the rotating disk 7 to rotate. Finally, support columns 2 are fixedly connected to the front and rear of the two points on both sides of the bottom of the base 1.

[0032] The above-mentioned structures together constitute the general appearance of the fixing fixture for painting die-cast parts according to this utility model.

[0033] To further explain the specific working principle of the fixing fixture for painting die-cast parts according to this utility model, the aforementioned flexible fixture assembly 10 includes a fixing block 1001 fixedly connected to the side of the hydraulic telescopic cylinder 9 away from the fixing frame 8. It is worth noting that the bottom end of the fixing block 1001 is slidably connected to the rotating disk 7. Then, several grooves 1002 are formed on the side of the fixing block 1001 away from the fixing frame 8. Sliding blocks 1004 are slidably connected within the grooves 1002. A spring 1005 is fixedly connected to the side of the sliding block 1004 closest to the fixing frame 8, and the end of the spring 1005 away from the sliding block 1004 is fixedly connected to the side wall of the groove 1002. Simultaneously, a damper 1003 is provided within the spring 1005. The side of the damper 1003 closest to the fixed frame 8 is fixedly connected to the side wall of the groove 1002, while the side of the damper 1003 furthest from the fixed frame 8 is fixedly connected to the sliding block 1004. The effect achieved is that when the sliding block 1004 moves toward the side of the fixed frame 8, it will compress the damper 1003 and the spring 1005. Then, an abutment block 1007 is provided on the side of the sliding block 1004 furthest from the fixed frame 8. The abutment block 1007 is in direct contact with the die-cast part and is used to fix the die-cast part. Since it is in frequent contact with the die-cast part, the abutment block 1007 is designed to be detachable. A double-ended bolt 1006 is provided on the sliding block 1004, and the abutment block 1007 is threadedly connected to the threaded part of the double-ended bolt 1006 furthest from the sliding block 1004.

[0034] The technical effect achieved by the technical solution composed of the above-mentioned technical features is as follows: When it is necessary to fix the die-cast part, the hydraulic telescopic cylinder 9 first pushes the fixing block 1001 away from the fixing frame 8. After the abutment block 1007 contacts the die-cast part, the hydraulic telescopic cylinder 9 continues to push the fixing block 1001 to move. During this process, the abutment block 1007 transmits force to the sliding block 1004 through the double-ended bolt 1006. Then, the sliding block 1004 will continuously compress the damper 1003 and the spring 1005. Due to the surface of the die-cast part... The surface shapes are different, and the height of the undulations is also different. The compression dampers 1003 and springs 1005 of the several sliding blocks 1004 are also different. This results in different extension amounts of the different sliding blocks 1004. When the hydraulic telescopic cylinder 9 pushes the fixed block 1001 to a certain position, each abutment block 1007 will play a positioning role for the die casting. At the same time, since the extension amounts of the sliding blocks 1004 are different, the abutment blocks 1007 can limit the lateral displacement of the die casting while also limiting the longitudinal displacement of the die casting.

[0035] To further explain the specific working principle of the fixing fixture for painting die-cast parts according to this utility model, the rotating device 4 includes two rotating frames 404 fixedly connected to the front of the bottom wall of the protective box 3. It is worth noting that the two rotating frames 404 are symmetrically arranged on both sides of the front of the bottom wall of the protective box 3. Then, a worm gear 403 is rotatably connected to the adjacent side of the two rotating frames 404. Then, a worm wheel 401 is engaged at the middle of the rear end of the worm gear 403. The top of the worm wheel 401 is fixedly connected to the rotating shaft 6, and the middle of the bottom end of the worm wheel 401 is fixedly connected to the rotating shaft 4. 02, where the bottom end of the rotating shaft 402 is rotatably connected to the middle of the bottom wall of the protective box 3. The effect achieved is that when the worm 403 drives the worm wheel 401 to rotate, the worm wheel 401 will simultaneously drive the rotating shaft 6 and the rotating shaft 402 to rotate together. In order to allow the worm 403 to rotate on its own, a motor 405 is provided on the side of the rotating frame 404 away from the worm 403. The motor 405 is fixedly connected to the bottom wall of the protective box 3 by a motor seat 406. At the same time, the output shaft of the motor 405 passes through the rotating frame 404 and is fixedly connected to the worm 403.

[0036] The technical effect achieved by the technical solution composed of the above-mentioned technical features is as follows: When it is necessary to control the rotation of the rotating shaft 6, the motor 405 will drive the worm 403 to rotate. While the worm 403 rotates on the rotating frame 404, the worm wheel 401 meshing with it will simultaneously drive the rotating shaft 402 at the bottom and the rotating shaft 6 at the top to rotate together. When the rotating shaft 6 rotates in the rotating hole 5, the rotating shaft 6 will also drive the rotating disk 7 to rotate together. Thus, the rotating disk 7 will drive the die-casting part to rotate to a suitable angle. It is worth noting that since the rotation between the worm wheel 401 and the worm 403 has a self-locking property, that is, when the motor 405 stops, the rotating shaft 6 will no longer rotate, ensuring the accuracy of the painting process.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0038] In addition, all electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The hydraulic telescopic cylinder mentioned in the article is connected to an external oil circuit. The detailed description of known functions and known components is omitted in the specific implementation of this disclosure. In order to ensure the compatibility of the equipment, the operating methods adopted are consistent with the parameters of commercially available instruments.

Claims

1. A fixing fixture for painting die-cast parts, comprising a base (1), characterized in that: Support columns (2) are fixedly connected to the front and rear parts of both sides of the bottom end of the base (1). A protective box (3) is fixedly connected to the middle of the bottom end of the base (1). A rotating device (4) is installed inside the protective box (3). A rotating hole (5) is opened in the middle of the top end of the base (1). A rotating shaft (6) is connected to the rotating hole (5) by a bearing. A rotating disk (7) is fixedly connected to the top end of the rotating shaft (6). Fixing brackets (8) are fixedly connected to both sides of the top end of the rotating disk (7). A self-locking device is fixedly connected to the front and rear parts of the two sides of the fixing brackets (8) that are close to each other. The hydraulic telescopic cylinder (9) is provided with flexible clamping components (10) on the adjacent sides of both sides of the hydraulic telescopic cylinder (9). A connecting column (11) is fixedly connected to the middle of the rear end of the base (1). A connecting plate (12) is fixedly connected to the top of the front end of the connecting column (11). A reinforcing plate (13) is fixedly connected to the rear of the bottom end of the connecting plate (12). The rear end of the reinforcing plate (13) is fixedly connected to the connecting column (11). A nozzle (14) is provided at the front of the bottom end of the connecting plate (12). The nozzle (14) is connected to the outside through a connecting pipe.

2. The fixing fixture for painting die-cast parts according to claim 1, characterized in that: The rotating device (4) includes a worm gear (401) fixedly connected to the bottom end of the rotating shaft (6). A rotating shaft (402) is fixedly connected to the middle of the bottom end of the worm gear (401). The bottom end of the rotating shaft (402) is rotatably connected to the bottom wall of the protective box (3).

3. A fixing fixture for painting die-cast parts according to claim 2, characterized in that: The front end of the worm gear (401) is engaged with a worm (403), and both sides of the worm (403) are rotatably connected to a rotating frame (404). The bottom ends of both rotating frames (404) are fixedly connected to the bottom wall of the protective box (3).

4. A fixing fixture for painting die-cast parts according to claim 3, characterized in that: A motor (405) is provided on one side of the rotating frame (404). The motor (405) is fixedly connected to the bottom wall of the protective box (3) by a motor base (406). The output shaft of the motor (405) passes through the rotating frame (404) and is fixedly connected to the worm gear (403).

5. A fixing fixture for painting die-cast parts according to claim 1, characterized in that: The flexible clamp assembly (10) includes a fixing block (1001) fixedly connected to the side of the hydraulic telescopic cylinder (9) away from the fixing frame (8). The bottom end of the fixing block (1001) is slidably connected to the rotating disk (7). The side of the fixing block (1001) away from the fixing frame (8) has several grooves (1002).

6. A fixing fixture for painting die-cast parts according to claim 5, characterized in that: A damper (1003) is fixedly connected to the side wall of the groove (1002) near the fixed frame (8). A sliding block (1004) is fixedly connected to the side of the damper (1003) away from the fixed frame (8). The sliding block (1004) is slidably connected in the groove (1002). A spring (1005) is provided around the damper (1003). The two sides of the spring (1005) are fixedly connected to the side wall of the groove (1002) and the sliding block (1004), respectively.

7. A fixing fixture for painting die-cast parts according to claim 6, characterized in that: The sliding block (1004) is provided with a double-ended bolt (1006), and an abutment block (1007) is threadedly connected to the threaded portion of the double-ended bolt (1006) away from the sliding block (1004).

Citation Information

Patent Citations

  • Die casting limiting block fixing jig

    CN221270921U