Metal casting machining clamp

Abstract

The utility model belongs to the field of metal casting machining, and particularly relates to a metal casting machining clamp which comprises an operation table. A plurality of supporting legs are fixedly connected to the operation table; a workpiece is arranged on the operation table; a limiting hole is formed in the workpiece; a plurality of air cylinders are fixedly connected to the operation table. The output ends of the multiple air cylinders are fixedly connected with connecting rods. The connecting rod and the operation table are arranged in a penetrating mode. A pressing block is hinged to the connecting rod; a connecting strip is hinged to the pressing block; the connecting strip is fixedly connected with a connecting block; the connecting block is fixedly connected with the operation table; a plurality of supporting columns are fixedly connected to the operation table, a pressing block is hinged to a connecting rod, a connecting strip is hinged to the pressing block, and a connecting block is hinged to the connecting strip, so that the pressing block can be driven to move when the connecting rod moves, and a workpiece is clamped and fixed when the pressing block moves to a designated position.

Description

Technical Field

[0001] This utility model relates to the field of metal casting processing, specifically a metal casting machining fixture. Background Technology

[0002] Metal casting machining fixtures are special tools used in the metal casting machining process to quickly and accurately position and fix the workpiece. They play a crucial role in the metal casting machining process. Selecting the appropriate fixture type, following design principles, and properly applying and maintaining the fixtures can significantly improve machining accuracy, production efficiency, and safety.

[0003] Clamping is crucial in the machining of metal castings. Clamping secures the casting, preventing movement or deformation during processing, thus ensuring machining accuracy and dimensional stability. Precise clamping and positioning ensures the relative position of the tool and the casting, avoiding machining errors. Clamping in metal casting machining is a key factor in ensuring machining accuracy, improving production efficiency, protecting machine tools and cutting tools, guaranteeing machining safety, adapting to diverse machining needs, and controlling machining costs. Therefore, the selection and application of clamping mechanisms must be carefully considered in metal casting machining.

[0004] Existing metal casting machining fixtures typically place the workpiece to be clamped on the machining table and process it directly. However, during use and observation, it has been found that this machining method can easily cause the workpiece to shift due to the force on its surface, thus affecting the machining process.

[0005] Therefore, a machining fixture for metal castings is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A metal casting machining fixture of this utility model includes an operating table; multiple support legs are fixedly connected to the operating table; a workpiece is placed on the operating table; a limit hole is opened on the workpiece; multiple cylinders are fixedly connected to the operating table; a connecting rod is fixedly connected to the output end of the multiple cylinders; the connecting rod and the operating table are through-connected; a pressing block is hinged to the connecting rod; a connecting strip is hinged to the pressing block; a connecting block is fixedly connected to the connecting strip; the connecting block and the operating table are fixedly connected; multiple support columns are fixedly connected to the operating table. By hinged pressing blocks to the connecting rods, connecting strips to the pressing blocks, and connecting blocks to the connecting strips, the pressing blocks can be driven to move when the connecting rods move, and the workpiece is clamped and fixed when the pressing blocks move to the designated position.

[0008] Preferably, a first rubber block is fixedly attached to the plurality of pressing blocks; the first rubber block is located between the workpiece and the pressing block, and when the pressing block moves to clamp and fix the workpiece, the first rubber block first contacts the workpiece, and when the first rubber block contacts the workpiece, the first rubber block fixes the workpiece. By fixing the first rubber block to the pressing block, the situation where the pressing block contacts the workpiece when clamping and fixing the workpiece can be reduced, thus reducing the possibility of scratches on the surface of the workpiece.

[0009] Preferably, a second rubber block is fixedly connected to one of the plurality of support columns; the second rubber block is located between the workpiece and the support column. By fixing the second rubber block to the support column, the second rubber block can contact the workpiece first when the support column and the workpiece come into contact, reducing the situation where the workpiece is scratched due to direct contact between the workpiece and the support column. At the same time, it can increase the friction between the support column and the workpiece and reduce the situation where the workpiece slides during the processing.

[0010] Preferably, a fixing column is fixedly connected to the operating table; the fixing column and the limiting hole are correspondingly set. When the workpiece is placed on the support column, the fixing column enters the limiting hole. At this time, the fixing column fixes the limiting hole. By fixing the fixing column to the operating table, the workpiece can be fixed when the fixing column enters the limiting hole, reducing the workpiece shaking during processing.

[0011] Preferably, a plurality of ball bearings are rotatably connected to the fixed post; the ball bearings are located between the fixed post and the limiting hole. By rotatably connecting a plurality of ball bearings to the fixed post, the ball bearings can roll on the inner wall of the limiting hole when the fixed post enters the limiting hole, making the fixed post enter the limiting hole more smoothly and reducing the occurrence of movement jamming when the fixed post enters the limiting hole.

[0012] Preferably, multiple springs are fixedly connected to the operating table; support plates are fixedly connected to the multiple springs; by fixing support plates to the springs, the workpiece can be lifted upwards after processing, making it easier to remove the workpiece after processing and facilitating subsequent processing of the workpiece.

[0013] The advantages of this utility model are:

[0014] 1. The metal casting machining fixture of this utility model has a pressing block hinged to a connecting rod, a connecting strip hinged to the pressing block, and a connecting block hinged to the connecting strip. When the connecting rod moves, it can drive the pressing block to move. When the pressing block moves to the designated position, it can clamp and fix the workpiece.

[0015] 2. The metal casting machining fixture of this utility model, by fixing a second rubber block to the support column, enables the second rubber block to contact the workpiece first when the support column and the workpiece come into contact, reducing the situation where the workpiece is scratched due to direct contact between the workpiece and the support column. At the same time, it can increase the friction between the support column and the workpiece and reduce the situation where the workpiece slides during the processing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the main body of this utility model;

[0018] Figure 2 This is a schematic diagram of the workpiece structure in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the second rubber block in this utility model;

[0020] Figure 4 This is a schematic diagram of the ball bearing structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the support plate in this utility model.

[0022] Legend: 1. Operating table; 11. Support leg; 12. Workpiece; 13. Limiting hole; 14. Cylinder; 15. Connecting rod; 16. Pressing block; 17. Connecting strip; 18. Connecting block; 19. Support column; 2. First rubber block; 3. Second rubber block; 4. Fixed column; 5. Ball bearing; 6. Spring; 61. Support plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] Specific implementation examples are given below.

[0025] like Figures 1 to 5As shown in the embodiment of this utility model, a metal casting machining fixture includes an operating table 1; multiple support legs 11 are fixedly connected to the operating table 1; a workpiece 12 is disposed on the operating table 1; a limit hole 13 is formed on the workpiece 12; multiple cylinders 14 are fixedly connected to the operating table 1; a connecting rod 15 is fixedly connected to the output end of the multiple cylinders 14; the connecting rod 15 and the operating table 1 are through-connected; a pressing block 16 is hinged to the connecting rod 15; a connecting strip 17 is hinged to the pressing block 16; a connecting block 18 is fixedly connected to the connecting strip 17; the connecting block 18 and the operating table 1 are fixedly connected; the operating table 1 is fixedly connected to... There are multiple support columns 19. The workpiece 12 is placed on the support columns 19. Then, the cylinder 14 is turned on. When the cylinder 14 is turned on, it drives the connecting rod 15 to move. When the connecting rod 15 moves, it drives the pressing block 16 to move. When the pressing block 16 moves to the designated position, the pressing block 16 contacts the workpiece 12. At this time, the pressing block 16 clamps and fixes the workpiece 12. By hinged to the pressing block 16 on the connecting rod 15, and to the pressing block 16, and to the connecting rod 17, and to the connecting block 18, the pressing block 16 can be driven to move when the connecting rod 15 moves. When the pressing block 16 moves to the designated position, the workpiece 12 is clamped and fixed.

[0026] like Figure 2 As shown, a first rubber block 2 is fixedly attached to a plurality of pressing blocks 16; the first rubber block 2 is located between the workpiece 12 and the pressing block 16. When the pressing block 16 moves to clamp and fix the workpiece 12, the first rubber block 2 first contacts the workpiece 12. When the first rubber block 2 contacts the workpiece 12, the first rubber block 2 fixes the workpiece 12. By fixing the first rubber block 2 to the pressing block 16, the situation where the pressing block 16 contacts the workpiece 12 when clamping and fixing the workpiece 12 can be reduced, thus reducing the possibility of scratches on the surface of the workpiece 12.

[0027] like Figure 3 As shown, a second rubber block 3 is fixedly attached to a plurality of the support columns 19. The second rubber block 3 is located between the workpiece 12 and the support column 19. When it is necessary to fix the workpiece 12, the workpiece 12 is first placed on the support column 19. When the workpiece 12 is placed on the support column 19, the second rubber block 3 contacts the workpiece 12 first. By fixing the second rubber block 3 to the support column 19, the second rubber block 3 contacts the workpiece 12 first when the support column 19 and the workpiece 12 come into contact, reducing the situation where the workpiece 12 is scratched due to direct contact between the workpiece 12 and the support column 19. At the same time, it can increase the friction between the support column 19 and the workpiece 12 and reduce the situation where the workpiece 12 slides during the processing.

[0028] like Figure 4As shown, a fixing column 4 is fixedly connected to the operating table 1; the fixing column 4 and the limiting hole 13 are correspondingly arranged. When the workpiece 12 is placed on the support column 19, the fixing column 4 enters the limiting hole 13. At this time, the fixing column 4 fixes the limiting hole 13. By fixing the fixing column 4 to the operating table 1, the workpiece 12 can be fixed when the fixing column 4 enters the limiting hole 13, reducing the shaking of the workpiece 12 during the processing.

[0029] like Figure 5 As shown, multiple ball bearings 5 ​​are rotatably connected to the fixed post 4; the ball bearings 5 ​​are located between the fixed posts 4 in the limiting hole 13. When the fixed post 4 enters the limiting hole 13, the ball bearings 5 ​​contact the inner wall of the limiting hole 13. At this time, the ball bearings 5 ​​roll on the inner wall of the limiting hole 13. By rotatably connecting multiple ball bearings 5 ​​to the fixed post 4, the ball bearings 5 ​​can roll on the inner wall of the limiting hole 13 when the fixed post 4 enters the limiting hole 13, making the fixed post 4 enter the limiting hole 13 more smoothly and reducing the possibility of the fixed post 4 getting stuck when entering the limiting hole 13.

[0030] like Figure 5 As shown, multiple springs 6 are fixedly connected to the operating table 1; support plates 61 are fixedly connected to the multiple springs 6; when the workpiece 12 is placed on the support column 19, the workpiece 12 presses down on the support plate 61, at which time the springs 6 are compressed. When the workpiece 12 is finished being processed, the pressing block 16 releases the clamping and fixing workpiece 12. At this time, the springs 6 push the support plate 61 upward under their own elastic force. The support plate 61 then pushes the workpiece 12 upward. By fixing the support plate 61 to the springs 6, the workpiece 12 can be pushed upward after the workpiece 12 is finished being processed, which makes it easier to remove the workpiece 12 after processing and facilitates subsequent processing of the workpiece 12.

[0031] Working principle: The workpiece 12 is placed on the support column 19, and then the cylinder 14 is turned on. When the cylinder 14 is turned on, it drives the connecting rod 15 to move. When the connecting rod 15 moves, it drives the pressing block 16 to move. When the pressing block 16 moves to the designated position, it contacts the workpiece 12, thus clamping and fixing the workpiece 12. When the pressing block 16 moves to clamp and fix the workpiece 12, the first rubber block 2 first contacts the workpiece 12, thus fixing the workpiece 12. When it is necessary to fix the workpiece 12, the workpiece 12 is first placed on the support column 19. When the second rubber block 3 first contacts the workpiece 12, when the workpiece 12 is placed on the support column 19, the fixing column 4 enters the limiting hole 13. At this time, the fixing column 4 fixes the limiting hole 13. When the fixing column 4 enters the limiting hole 13, the ball 5 contacts the inner wall of the limiting hole 13. At this time, the ball 5 rolls on the inner wall of the limiting hole 13. When the workpiece 12 is placed on the support column 19, the workpiece 12 presses down on the support plate 61. At this time, the spring 6 is compressed. When the workpiece 12 is processed, the pressing block 16 releases the clamping and fixing workpiece 12. At this time, the spring 6 pushes the support plate 61 upward under its own elastic force. At this time, the support plate 61 pushes the workpiece 12 upward.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A metal casting machine tooling fixture comprising an operating table (1); characterized in that: The operating table (1) is fixed with a plurality of supporting legs (11); The operating table (1) is provided with a workpiece (12); The workpiece (12) is provided with a limiting hole (13); The operating table (1) is fixed with a plurality of air cylinders (14); A plurality of air cylinders (14) output end is fixed with connecting rod (15); The connecting rod (15) and operating table (1) are through setting; The connecting rod (15) is hinged with a pressing block (16); The pressing block (16) is hinged with a connecting strip (17); The connecting strip (17) is fixed with a connecting block (18); The connecting block (18) and operating table (1) are in fixed connection; The operating table (1) is fixed with a plurality of supporting columns (19).

2. A metal casting machining fixture according to claim 1, characterized in that: A plurality of pressing blocks (16) are fixed with first rubber blocks (2); The first rubber block (2) is located between the workpiece (12) and the pressing block (16).

3. A metal casting machining fixture according to claim 2, characterized in that: A plurality of supporting columns (19) are fixed with second rubber blocks (3); The second rubber block (3) is located between the workpiece (12) and the supporting column (19).

4. A metal casting machining fixture according to claim 3, characterized in that: The operating table (1) is fixed with a fixed column (4); The fixed column (4) and the limiting hole (13) are correspondingly arranged.

5. A metal casting machining fixture according to claim 4, characterized in that: A plurality of rolling balls (5) are rotatably connected to the fixed column (4); The rolling ball (5) is located between the limiting hole (13) and the fixed column (4).

6. A metal casting machining fixture according to claim 5, characterized in that: A plurality of springs (6) are fixed to the operating table (1); A plurality of supporting plates (61) are fixed to the springs (6).

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