Machining fixing clamp

Abstract

The utility model relates to the technical field of machining, and discloses a machining fixing clamp which comprises a fixing table, a sliding frame is fixedly connected to the upper end of the fixing table, a threaded rod is slidably connected to the inner wall of the sliding frame, a connecting rod is slidably connected to the inner wall of the upper end of the sliding frame, and a fixing mechanism is arranged on the inner wall of the sliding frame. The fixing mechanism comprises an upper clamping block, the outer wall of the upper clamping block is in sliding connection with the inner wall of the sliding frame, the inner wall of the upper clamping block is in sliding connection with a connecting rod, the inner wall of the sliding frame is fixedly connected with a lower clamping block, and the outer wall of the upper clamping block and the outer wall of the lower clamping block are combined to be in threaded connection with the outer wall of a screw. The upper clamping block is elastically connected with the sliding frame through an outer spring. According to the utility model, through the design of the fixing mechanism, the sliding block can be directly slid to quickly adjust the position of the sliding block and then the screw is used for clamping before the sliding block and the sliding frame clamp a part by using the rotation of the screw.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field especially, relates to a mechanical processing fixed clamp. BACKGROUND

[0002] Mechanical processing clamp plays a vital role in mechanical manufacturing, and the fixed clamp can position and fix the workpiece accurately, ensure that the position of the workpiece does not change in the processing, thereby improving the processing precision, in addition, the use of the clamp can also improve the production efficiency, and reduce the labor intensity of the operator, and using different types of clamps can also make the machine tool be able to process more kinds of workpieces, thereby expanding the process range of the machine tool.

[0003] The fixed clamp in mechanical processing is mainly composed of the following key parts, the clamping device is used for clamping the workpiece, ensuring that the positioning accuracy of the workpiece is not damaged due to external force in the processing, the clamping device is usually composed of a power device, an intermediate force transmission mechanism and a clamping element, the clamp body is used for connecting or fixing each element and device on the clamp, so as to become a basic part of the whole, and the clamp is usually connected and positioned with the relevant parts of the machine tool, so that the clamp has a certain position relative to the machine tool.

[0004] The general mechanical processing fixed clamp uses a screw rod to adjust when in use, rotates the screw rod to clamp the parts by the clamp body, the position of the clamp body can be adjusted more accurately before clamping in this way, but the speed of moving the clamp body by rotating the screw rod is very slow when adjusting for a long distance, which wastes time and manpower, therefore, the brush machine for workpiece processing is proposed to solve the above problems. UTILITARIAN CONTENT

[0005] In order to make up for the above shortcomings, the utility model provides a kind of mechanical processing fixed clamp, to improve the problem of slow clamp adjustment in prior art.

[0006] In order to realize the above purpose, the utility model adopts the following technical scheme: a kind of mechanical processing fixed clamp, including fixed platform, the upper end of the fixed platform is fixedly connected with sliding frame, the inner wall of the sliding frame is slidably connected with screw rod, the upper end inner wall of the sliding frame is slidably connected with connecting rod, the inner wall of the sliding frame is provided with fixed mechanism, the fixed mechanism includes upper clamping block, the outer wall of the upper clamping block is slidably connected with the inner wall of the sliding frame, the inner wall of the upper clamping block is slidably connected with connecting rod, the inner wall of the sliding frame is fixedly connected with lower clamping block, the outer wall of the upper clamping block and the outer wall of the lower clamping block are combined with the outer wall of the screw rod and are threadedly connected, and the upper clamping block is elastically connected with the sliding frame by outer spring.

[0007] As a further description of the above technical scheme:

[0008] The outer wall of the sliding frame is slidably connected to a sliding block, the left side of the screw is fixedly connected to a rotating head, the right end of the screw is rotatably connected to the inner wall of the sliding block, and the outer wall of the sliding frame is provided with an oil filling hole.

[0009] As a further description of the above technical solution:

[0010] One end of the outer spring is fixedly connected to the upper end of the upper clamping block, and the other end of the outer spring is fixedly connected to the inner wall of the sliding frame.

[0011] As a further description of the above technical solution:

[0012] The inner wall of the sliding frame is fixedly connected with a protrusion, the inner wall of the upper end of the upper clamping block is slidably connected with a slider, the slider is elastically connected to the upper clamping block through an inner spring, and the upper end of the slider contacts the lower end of the protrusion.

[0013] As a further description of the above technical solution:

[0014] One end of the inner spring is fixedly connected to the lower end of the slider, and the other end of the inner spring is fixedly connected to the inner wall of the upper clamping block.

[0015] As a further description of the above technical solution:

[0016] An oil filling port is provided on the outer wall of the upper clamping block, an oil storage tank is provided on the inner wall of the upper clamping block, and an oil outlet is provided at the lower end of the upper clamping block.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the connecting rod is fixedly connected with a wedge-shaped sliding pad, the upper end of the wedge-shaped sliding pad is rotatably connected to the inner wall of the upper clamping block, the inner wall of the lower clamping block is fixedly connected with a wedge-shaped fixed pad, and the lower end of the wedge-shaped sliding pad is slidably connected to the upper end of the wedge-shaped fixed pad.

[0019] As a further description of the above technical solution:

[0020] The lower end of the upper clamping block is fixedly connected to a guide rod, and the outer wall of the guide rod is slidably connected to the inner wall of the lower clamping block. The utility model has the following beneficial effects:

[0021] 1. In the utility model, through the design of the fixing mechanism, before using the screw to rotate the sliding block and the sliding frame to clamp the parts, the sliding block can be directly slid to quickly adjust the position of the sliding block and then the screw can be used for clamping, which makes the operation more convenient and quick.

[0022] 2. In the present invention, the design of the slider, the protrusion, the oil filling port and the oil outlet allows the oil storage tank to be directly filled with oil when lubricating the screw and the upper clamping block. Each time the upper clamping block is moved, the screw is lubricated, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of a mechanical processing fixing fixture proposed by the present utility model;

[0024] Figure 2 This is a schematic diagram of an upper clamping block of a mechanical processing fixing fixture proposed by the present invention;

[0025] Figure 3 This is a schematic diagram of a slider of a machining fixing fixture proposed by the present invention;

[0026] Figure 4 This is a schematic diagram of a wedge-shaped sliding pad of a machining fixing fixture proposed by the present invention.

[0027] Legend:

[0028] 1. Fixed table; 2. Sliding frame; 3. Screw; 4. Rotating head; 5. Sliding block; 6. Oil filling hole; 7. Connecting rod; 8. Upper clamping block; 9. Lower clamping block; 10. Outer spring; 11. Bump; 12. Sliding block; 13. Oil filling port; 14. Inner spring; 15. Wedge-shaped sliding pad; 16. Oil outlet; 17. Guide rod; 18. Wedge-shaped fixing pad. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] Reference Figure 1 - Figure 3The present invention provides an embodiment of a machining fixing fixture, comprising a fixed table 1, which provides a fixing effect for the sliding frame 2 at the upper end. The upper end of the fixed table 1 is fixedly connected to the sliding frame 2, and the sliding frame 2 is used to place the parts to be processed and provide a support effect. The inner wall of the sliding frame 2 is slidably connected with a screw 3, and the screw 3 is combined with the upper clamping block 8 and the lower clamping block 9 on the inner wall to fix the sliding block 5 and the sliding frame 2 to provide a stable effect. The inner wall of the upper end of the sliding frame 2 is slidably connected with a connecting rod 7, and the upward movement of the connecting rod 7 will drive the connected wedge-shaped sliding pad 15 to move upward, so that the upper clamping block 8 moves upward to release the threaded connection with the screw 3. The inner wall of the sliding frame 2 is provided with a fixing mechanism, which includes an upper clamping block 8. The upper clamping block 8 provides a fixing effect on the screw 3 by squeezing the outer spring 10, and the outer wall of the upper clamping block 8 slides with the inner wall of the sliding frame 2 The upper clamping block 8 is connected with the guide rod 17 and the wedge-shaped sliding pad 15, and the lower clamping block 9 provides a stable support effect to the guide rod 17 and the wedge-shaped sliding pad 15. The outer wall of the upper clamping block 8 and the outer wall of the lower clamping block 9 are combined with the outer wall of the screw rod 3 and the upper end of the lower clamping block 9 has a thread that is threadedly connected to the screw rod 3. When the upper clamping block 8 and the lower clamping block 9 are no longer threadedly connected to the screw rod 3, the upper clamping block 8 is elastically connected to the sliding frame 2 by the outer spring 10. One end of the outer spring 10 is fixedly connected to the upper end of the upper clamping block 8, and the other end of the outer spring 10 is fixedly connected to the inner wall of the sliding frame 2. The upper clamping block 8 is tightly connected to the screw rod 3 by the thrust of the outer spring 10, and the upper clamping block 8 and the screw rod 3 can be moved away from each other when external force is applied.

[0031] refer to Figure 3 、 Figure 4 The outer wall of the connecting rod 7 is fixedly connected with a wedge-shaped sliding pad 15, the upper end of the wedge-shaped sliding pad 15 is rotatably connected to the inner wall of the upper clamping block 8, and the inner wall of the lower clamping block 9 is fixedly connected with a wedge-shaped fixed pad 18, and the wedge-shaped fixed pad 18 and the wedge-shaped sliding pad 15 are designed to be displaced up and down, as shown in the attached Figure 3-Figure 4 , so that the bottom of the wedge-shaped sliding pad 15 and the top of the wedge-shaped fixed pad 18 have an inclined surface that can fit together. When the wedge-shaped sliding pad 15 is rotated, because the two groups are connected by inclined surfaces, the wedge-shaped sliding pad 15 will move upward, thereby driving the connecting rod 7 to move upward, and the lower end of the wedge-shaped sliding pad 15 is slidably connected to the upper end of the wedge-shaped fixed pad 18. The lower end of the upper clamping block 8 is fixedly connected to a guide rod 17, which provides a guiding effect for the upper clamping block 8. The outer wall of the guide rod 17 is slidably connected to the inner wall of the lower clamping block 9. The guide rod 17 will only move up and down on the inner wall of the lower clamping block 9, thereby causing the upper clamping block 8 fixed at the upper end to move up and down.

[0032] refer to Figure 1The outer wall of the sliding frame 2 is slidably connected with a sliding block 5, which moves laterally on the sliding frame 2. When the sliding block 5 is fixed, it combines with the left part of the sliding frame 2 to clamp the processed parts. The left side of the screw rod 3 is fixedly connected with a rotating head 4, which can rotate the screw rod 3. The right end of the screw rod 3 is rotatably connected to the inner wall of the sliding block 5, so that the position of the sliding block 5 will not be affected when the screw rod 3 rotates, providing a fixing effect for the screw 3. An oil filling hole 6 is provided on the outer wall of the sliding frame 2, and lubricating oil can be injected into the oil filling port 13 inside through the oil filling hole 6.

[0033] refer to Figure 3 The inner wall of the sliding frame 2 is fixedly connected with a protrusion 11, and the inner wall of the upper end of the upper clamping block 8 is slidably connected with a slider 12. The slider 12 moves on the inner wall of the upper clamping block 8 to squeeze the inside of the oil storage tank. A limit is provided at the lower end of the slider 12 to prevent the slider 12 from sliding out. The slider 12 is elastically connected to the upper clamping block 8 through an inner spring 14. One end of the inner spring 14 is fixedly connected to the lower end of the slider 12, and the other end of the inner spring 14 is fixedly connected to the inner wall of the upper clamping block 8. In the absence of external force, the inner spring 14 will press the slider 12 Providing thrust, the upper end of the slider 12 contacts the lower end of the protrusion 11. When the upper block 8 moves upward, the protrusion 11 will squeeze the slider 12 to squeeze the inside of the oil storage tank. The outer wall of the upper block 8 is provided with an oil filling port 13. The oil filling port 13 can inject lubricating oil into the oil storage tank. The inner wall of the upper block 8 is provided with an oil storage tank. The lower end of the upper block 8 is provided with an oil outlet 16. When the slider 12 squeezes the oil storage tank, the lubricating oil on the inner wall will be squeezed so that the lubricating oil flows out from the oil outlet 16 to lubricate the screw 3.

[0034] Working principle: When processing parts, use a clamp to clamp them. First, rotate the connecting rod 7 to make the wedge-shaped sliding pad 15 drive the upper clamping block 8 to move upward, release the threaded connection between the upper clamping block 8 and the screw 3, slide the sliding block 5 to adjust it to the appropriate position, and rotate the connecting rod 7 in the opposite direction to re-thread the upper clamping block 8 with the screw 3. Use the rotating head 4 to rotate the screw 3 so that the sliding block 5 and the sliding frame 2 clamp the parts. By first releasing the threaded connection of the screw 3, the position of the sliding block 5 can be quickly adjusted, and then the tightening operation using the screw 3 is faster.

[0035] When the screw rod 3 is used for a long time, the connection between the screw rod 3 and the upper clamping block 8 needs to be lubricated. Use a lubricating can with a long nozzle to inject the lubricating oil into the oil filling port 13 through the oil filling hole 6. When the upper clamping block 8 is separated from the screw rod 3, the protrusion 11 in the sliding frame 2 will squeeze the slider 12 to squeeze the inside of the oil storage tank. When the upper clamping block 8 moves upward, the positions of the oil filling hole 6 and the oil filling port 13 will be staggered, and the inner wall of the sliding frame 2 will block the oil filling port 13, so that the lubricating oil in the oil storage tank will only flow out from the oil outlet 16 to lubricate the connection between the screw rod 3 and the upper clamping block 8.

[0036] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A machining fixture, comprising a fixing table (1), characterized in that: The upper end of the fixed platform (1) is fixedly connected to a sliding frame (2), the inner wall of the sliding frame (2) is slidably connected to a screw rod (3), the inner wall of the upper end of the sliding frame (2) is slidably connected to a connecting rod (7), the inner wall of the sliding frame (2) is provided with a fixing mechanism, the fixing mechanism includes an upper clamping block (8), the outer wall of the upper clamping block (8) is slidably connected to the inner wall of the sliding frame (2), the inner wall of the upper clamping block (8) is slidably connected to the connecting rod (7), the inner wall of the sliding frame (2) is fixedly connected to a lower clamping block (9), the outer wall of the upper clamping block (8) and the outer wall of the lower clamping block (9) are combined and threadedly connected to the outer wall of the screw rod (3), and the upper clamping block (8) is elastically connected to the sliding frame (2) through an external spring (10).

2. A machining fixture according to claim 1, characterized in that: The outer wall of the sliding frame (2) is slidably connected to a sliding block (5), the left side of the screw rod (3) is fixedly connected to a rotating head (4), the right end of the screw rod (3) is rotatably connected to the inner wall of the sliding block (5), and the outer wall of the sliding frame (2) is provided with an oil filling hole (6).

3. The machining fixture according to claim 1, characterized in that: One end of the outer spring (10) is fixedly connected to the upper end of the upper clamping block (8), and the other end of the outer spring (10) is fixedly connected to the inner wall of the sliding frame (2).

4. The machining fixture according to claim 1, characterized in that: The inner wall of the sliding frame (2) is fixedly connected to a protrusion (11), and the inner wall of the upper end of the upper clamping block (8) is slidably connected to a slider (12). The slider (12) is elastically connected to the upper clamping block (8) through an inner spring (14), and the upper end of the slider (12) contacts the lower end of the protrusion (11).

5. The machining fixture according to claim 4, characterized in that: One end of the inner spring (14) is fixedly connected to the lower end of the slider (12), and the other end of the inner spring (14) is fixedly connected to the inner wall of the upper clamping block (8).

6. The machining fixture according to claim 1, characterized in that: An oil filling port (13) is provided on the outer wall of the upper clamping block (8), an oil storage tank is provided on the inner wall of the upper clamping block (8), and an oil outlet (16) is provided at the lower end of the upper clamping block (8).

7. The machining fixture according to claim 1, characterized in that: The outer wall of the connecting rod (7) is fixedly connected with a wedge-shaped sliding pad (15), the upper end of the wedge-shaped sliding pad (15) is rotatably connected to the inner wall of the upper clamping block (8), the inner wall of the lower clamping block (9) is fixedly connected with a wedge-shaped fixed pad (18), and the lower end of the wedge-shaped sliding pad (15) is slidably connected to the upper end of the wedge-shaped fixed pad (18).

8. The machining fixture according to claim 1, characterized in that: The lower end of the upper clamping block (8) is fixedly connected to a guide rod (17), and the outer wall of the guide rod (17) is slidably connected to the inner wall of the lower clamping block (9).

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