Machining clamp

Abstract

The utility model discloses a machining clamp which comprises a bottom plate and a workpiece, a butt joint hole is formed in the bottom plate, a movable block is fixedly connected to the upper surface of the bottom plate, a T-shaped block is fixedly connected to the upper surface of the movable block, and a first positioning block is fixedly connected to the upper surface of the bottom plate. Through the arrangement of structures such as limiting rods, a telescopic air cylinder and a second positioning block, a workpiece is placed between the limiting rods, preliminary positioning of the workpiece can be achieved, the workpiece cannot move left and right, then the telescopic air cylinder is started, the second positioning block makes contact with the workpiece, and therefore the workpiece can be limited; through the arrangement of the first supporting block, the second supporting block, the center rod, the groove and other structures, the center, the periphery and the corners of the workpiece can be supported, and the stability of the workpiece in the machining process is further improved.

Description

Technical Field

[0001] The utility model relates to the field of clamps, in particular to a machining clamp. Background Art

[0002] A fixture is a device used to fix the object to be processed in the mechanical manufacturing process so that it occupies the correct position for construction or inspection. It is also called a clamp. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process in the process can be called a fixture.

[0003] In the prior art, after the cast aluminum base parts are injection molded, in order to improve the assembly smoothness and aesthetics of the workpiece, the workpiece needs to be processed in the next step. However, most of the workpieces after injection molding are irregular in shape and are not suitable for general standard fixtures. Therefore, a machining fixture is required. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a machining fixture. By setting structures such as a limit rod, a telescopic cylinder and a second positioning block, the workpiece can be initially positioned by placing the workpiece between the limit rods, so that the workpiece will not move left and right. Then, the telescopic cylinder is started to make the second positioning block contact with the workpiece, so that the workpiece can be restricted and the workpiece will not move up and down, thereby fixing the workpiece and preventing the workpiece from moving during processing. In addition, by setting structures such as the first positioning block, the second supporting block, the center rod and the groove, the center, periphery and corners of the workpiece can be supported, thereby further improving the stability of the workpiece during processing.

[0005] The utility model also provides the above-mentioned machining fixture, including a base plate and a workpiece, the base plate is provided with a docking hole, the upper surface of the base plate is fixedly connected with a movable block, the upper surface of the movable block is fixedly connected with a T-shaped block, the upper surface of the base plate is fixedly connected with a first positioning block, the upper surface of the first positioning block is fixedly connected with a limiting rod, the upper surface of the base plate is fixedly connected with a first supporting block, the first supporting block is provided with a groove, the upper surface of the base plate is fixedly connected with a second supporting block, the upper surface of the base plate is fixedly connected with a center table, and the upper surface of the center table is fixed A connecting plate is connected, a center rod is fixedly connected to the upper surface of the connecting plate, a telescopic cylinder is fixedly connected to the upper surface of the base plate, a docking block is fixedly connected to the output end of the telescopic cylinder, the inner surface of the docking block is rotatably connected to a connecting rod, a second positioning block is fixedly connected to the side surface of the connecting rod, a connecting block is fixedly connected to the telescopic cylinder, the inner surface of the connecting block is rotatably connected to a first connecting shaft, an I-block is fixedly connected to the side surface of the first connecting shaft, the inner surface of the second positioning block is fixedly connected to the second connecting shaft, and a support column is fixedly connected to the upper surface of the base plate.

[0006] According to the machining fixture, the upper surface of the T-block is in contact with the workpiece, and the telescopic cylinder is electrically connected to an external power source.

[0007] According to the machining fixture, the outer surface of the limit rod is in contact with the workpiece, and there are multiple limit rods. Under the action of the limit rods, the workpiece will not move left and right.

[0008] According to the machining fixture, the upper surfaces of the support column and the center rod are in contact with the workpiece, and the inner surface of the groove is in contact with the workpiece, so as to support the workpiece.

[0009] According to the machining fixture, the outer surface of the docking block contacts the second positioning block, and the outer surface of the second positioning block contacts the I-block, thereby supporting the corners of the workpiece.

[0010] According to the machining fixture, the outer surface of the connecting block is in contact with the I-shaped block, and the outer surface of the second connecting shaft is rotatably connected to the I-shaped block.

[0011] According to the machining fixture, the upper surface of the second support block contacts the workpiece, and the number of the second support blocks is three.

[0012] According to the machining fixture, the lower surface of the second positioning block contacts the workpiece, and the number of the second positioning blocks is three. Under the action of the second positioning blocks, the workpiece will not move up and down.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is an overall structural diagram of a machining fixture of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a limit rod part of a machining fixture of the utility model;

[0017] Figure 3 It is a structural schematic diagram of a workpiece part of a machining fixture of the utility model;

[0018] Figure 4 This is a structural schematic diagram of the center table portion of a machining fixture of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the telescopic cylinder part of a machining fixture of the utility model;

[0020] Figure 6 It is a structural schematic diagram of the cross-section of a docking block of a machining fixture of the utility model;

[0021] Figure 7 The utility model is a structural schematic diagram of the cross-section of an I-shaped block of a machining fixture.

[0022] Legend:

[0023] 1. Base plate; 2. Workpiece; 3. Docking hole; 4. Movable block; 5. T-block; 6. First positioning block; 7. Limit rod; 8. First support block; 9. Second support block; 10. Center table; 11. Support column; 12. Connecting plate; 13. Center rod; 14. Telescopic cylinder; 15. Connecting block; 16. Docking block; 17. Connecting rod; 18. Second positioning block; 19. First connecting axis; 20. I-block; 21. Second connecting axis; 22. Groove. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0025] Reference Figure 1-7The utility model embodiment provides a machining fixture, which includes a base plate 1 and a workpiece 2. The base plate 1 is provided with a docking hole 3. The upper surface of the base plate 1 is fixedly connected with a movable block 4. The upper surface of the movable block 4 is fixedly connected with a T-shaped block 5. The upper surface of the base plate 1 is fixedly connected with a first positioning block 6. The upper surface of the first positioning block 6 is fixedly connected with a limiting rod 7. The upper surface of the base plate 1 is fixedly connected with a first supporting block 8. The first supporting block 8 is provided with a groove 22. The upper surface of the base plate 1 is fixedly connected with a second supporting block 8. Block 9, the upper surface of the bottom plate 1 is fixedly connected with a center platform 10, the upper surface of the center platform 10 is fixedly connected with a connecting plate 12, the upper surface of the connecting plate 12 is fixedly connected with a center rod 13, the upper surface of the bottom plate 1 is fixedly connected with a telescopic cylinder 14, the output end of the telescopic cylinder 14 is fixedly connected with a docking block 16, the inner surface of the docking block 16 is rotatably connected with a connecting rod 17, the side surface of the connecting rod 17 is fixedly connected with a second positioning block 18, the telescopic cylinder 14 is fixedly connected with a connecting block 15, the connecting block The inner surface of 15 is rotatably connected with the first connecting shaft 19, the side surface of the first connecting shaft 19 is fixedly connected with the I-block 20, the inner surface of the second positioning block 18 is fixedly connected with the second connecting shaft 21, the upper surface of the bottom plate 1 is fixedly connected with the support column 11, the upper surface of the T-block 5 contacts the workpiece 2, the telescopic cylinder 14 is electrically connected to the external power supply, the outer surface of the limit rod 7 contacts the workpiece 2, the number of the limit rods 7 is multiple, the upper surfaces of the support column 11 and the center rod 13 are both in contact with the workpiece 2, the inner surface of the groove 22 contacts the workpiece 2, the outer surface of the docking block 16 contacts the second positioning block 18, the outer surface of the second positioning block 18 contacts the I-block 20, the outer surface of the connecting block 15 contacts the I-block 20, the outer surface of the second connecting shaft 21 is rotatably connected with the I-block 20, the upper surface of the second support block 9 contacts the workpiece 2, the number of the second support blocks 9 is three, the lower surface of the second positioning block 18 contacts the workpiece 2, the number of the second positioning blocks 18 is three.

[0026] Working principle: The fixture as a whole can be connected to other processing equipment through the docking hole 3 on the bottom plate 1. When the workpiece 2 on the bottom plate 1 is processed, the telescopic cylinder 14 is started to shrink the output end of the telescopic cylinder 14, so that the docking block 16 and the connecting rod 17 move downward, and the moving connecting rod 17 drives one end of the second positioning block 18 to move downward, so that the second positioning block 18 is no longer in contact with the workpiece 2, and the fixation of the workpiece 2 is released, so that the workpiece 2 can be removed from the bottom plate 1, and the new workpiece 2 can be placed between the multiple limit rods 7 to achieve the initial positioning of the workpiece 2. When the workpiece 2 is placed and contacts the first support block 8, the second support block 9, and the groove 22, the position around the workpiece 2 can be supported and lifted. The stability of the workpiece 2 during processing, and when the four corners of the workpiece 2 are in contact with the T-block 5 on the movable block 4, the four corners of the workpiece 2 can be supported to further improve the stability of the workpiece 2, and then the telescopic cylinder 14 is started, so that the output end of the telescopic cylinder 14 is extended after starting, so that the docking block 16 and the connecting rod 17 move upward, so that the moving connecting rod 17 pushes the second positioning block 18 to rotate with the connecting rod 17 as the center axis, and the rotating second positioning block 18 will push the second connecting shaft 21 on the I-block 20, so that the second connecting shaft 21 drives the I-block 20 to rotate with the first connecting shaft 19 as the center axis. When the rotated second positioning block 18 contacts the workpiece 2, the telescopic cylinder 14 is closed to complete the fixation of the workpiece 2.

[0027] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A machining fixture, characterized in that: include: A base plate (1) and a workpiece (2), wherein the base plate (1) is provided with a docking hole (3), the upper surface of the base plate (1) is fixedly connected with a movable block (4), the upper surface of the movable block (4) is fixedly connected with a T-shaped block (5), the upper surface of the base plate (1) is fixedly connected with a first positioning block (6), the upper surface of the first positioning block (6) is fixedly connected with a limiting rod (7), the upper surface of the base plate (1) is fixedly connected with a first supporting block (8), the first supporting block (8) is provided with a groove (22), the upper surface of the base plate (1) is fixedly connected with a second supporting block (9), the upper surface of the base plate (1) is fixedly connected with a center table (10), the upper surface of the center table (10) is fixedly connected with a connecting plate (12), the connecting plate (12 ) is fixedly connected to the upper surface of a center rod (13); a telescopic cylinder (14) is fixedly connected to the upper surface of the base plate (1); an output end of the telescopic cylinder (14) is fixedly connected to a docking block (16); an inner surface of the docking block (16) is rotatably connected to a connecting rod (17); a side surface of the connecting rod (17) is fixedly connected to a second positioning block (18); a connecting block (15) is fixedly connected to the telescopic cylinder (14); an inner surface of the connecting block (15) is rotatably connected to a first connecting shaft (19); a side surface of the first connecting shaft (19) is fixedly connected to an I-shaped block (20); an inner surface of the second positioning block (18) is fixedly connected to a second connecting shaft (21); and a support column (11) is fixedly connected to the upper surface of the base plate (1).

2. A machining fixture according to claim 1, characterized in that: The upper surface of the T-block (5) is in contact with the workpiece (2), and the telescopic cylinder (14) is electrically connected to an external power source.

3. A machining fixture according to claim 1, characterized in that: The outer surface of the limiting rod (7) is in contact with the workpiece (2), and there are multiple limiting rods (7).

4. A machining fixture according to claim 1, characterized in that: The upper surfaces of the support column (11) and the center rod (13) are in contact with the workpiece (2), and the inner surface of the groove (22) is in contact with the workpiece (2).

5. A machining fixture according to claim 1, characterized in that: The outer surface of the docking block (16) contacts the second positioning block (18), and the outer surface of the second positioning block (18) contacts the I-shaped block (20).

6. A machining fixture according to claim 1, characterized in that: The outer surface of the connecting block (15) is in contact with the I-shaped block (20), and the outer surface of the second connecting shaft (21) is rotatably connected to the I-shaped block (20).

7. A machining fixture according to claim 1, characterized in that: The upper surface of the second support block (9) is in contact with the workpiece (2), and the number of the second support blocks (9) is three.

8. The machining fixture according to claim 1, characterized in that: The lower surface of the second positioning block (18) is in contact with the workpiece (2), and the number of the second positioning blocks (18) is three.

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