Positioning clamp for grinding machining

Abstract

The grinding machining positioning clamp comprises a table body, two moving grooves are formed in the upper portion of the table body, sliding rods are fixedly arranged in the moving grooves, the sliding rods are arranged in a penetrating mode and slidably connected with sliding blocks, moving rods are fixedly connected to the upper portions of the sliding blocks, and the outer walls of the sliding rods are arranged in a penetrating mode and slidably connected with moving blocks. The movable blocks are elastically connected with the sliding blocks through springs, the fastening degree of clamping can be adjusted by changing the positions of the movable blocks, according to the scheme, by treading a rotating plate, an ejector block ascends to drive the movable plate to move upwards, two second sliding blocks also move upwards, two first sliding blocks drive the two sliding blocks to move in the direction away from the center of the table body, and the springs are compressed; the rotating plate is loosened, the first sliding blocks release limiting, due to the elastic force effect of the springs, the two sliding blocks move in the direction close to the center of the table body, clamping of the workpiece is completed, if the clamping force needs to be adjusted, the bolts are rotated to enable the moving blocks to move, and the clamping force is changed by changing the compressed degree of the springs.

Description

Technical Field

[0001] The present application relates to the technical field of grinding processing, and in particular to a grinding processing positioning fixture. Background Art

[0002] Grinding is a common metal processing method that uses abrasives to cut or polish the surface of the workpiece to achieve the desired size, shape and surface quality. Grinding can be used to process various metal materials, such as steel, iron, aluminum, etc. Grinding usually uses abrasives such as grindstones, grinding wheels or abrasive grains for cutting operations. During the grinding process, the relative movement between the abrasive particles and the workpiece surface will generate cutting force and remove material from the workpiece surface to achieve the processing goal.

[0003] During the grinding process, the workpiece needs to be clamped and positioned. The movement of the workpiece will affect the grinding effect. Due to the material and processing accuracy requirements of some workpieces, if they are clamped too tightly during grinding, the surface will be worn or even dented. In addition, the traditional clamping and positioning method is mostly clamped by moving the clamping plate, which is time-consuming and labor-intensive. Therefore, in order to solve the above problems, this application provides a grinding positioning fixture.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Utility Model Content

[0005] In order to solve the problem that the clamping force is difficult to adjust and the clamping is inconvenient, the present application provides a grinding processing positioning fixture.

[0006] The present application provides a grinding processing positioning fixture, including a table body, with two movable grooves on the top of the table body, sliding rods are fixedly arranged in the movable grooves, the sliding rods are through-arranged and slidably connected to sliding blocks, the sliding blocks are fixedly connected to the tops of the sliding rods, the outer walls of the sliding rods are through-arranged and slidably connected to moving blocks, the moving blocks are elastically connected to the sliding blocks by springs, and the position of the moving blocks can be changed to adjust the tightness of the clamping.

[0007] Preferably, two bolts are provided through and threadedly connected to the side wall of the platform body, one end of each bolt is located in one of the movable grooves, and one end of the bolt located in the movable groove is located above the sliding rod and is rotatably connected to the side wall of the movable block.

[0008] Preferably, the lower wall of the sliding block is fixedly connected with a fixing rod, and the lower end of the fixing rod is fixedly connected with a first sliding block.

[0009] Preferably, a telescopic rod is fixedly connected to the lower wall of the platform body, a movable plate is fixedly connected to the lower end of the telescopic rod, and two second sliding blocks are fixedly connected to the upper wall of the movable plate.

[0010] Preferably, the second sliders cooperate with the first sliders above them respectively, the second sliders move upward to contact with the first sliders, and the first sliders drive the sliding block to move horizontally.

[0011] Preferably, a connecting rod is fixedly connected to the lower wall of the platform body, a rotating plate is rotatably arranged below the connecting rod, and the connecting rod is rotatably connected to the middle part of the upper wall of the rotating plate through a rotating shaft.

[0012] Preferably, a top block is fixedly connected to an upper wall of one end of the rotating plate close to the center of the platform body, and the top block is located directly below the movable plate.

[0013] Preferably, two limit rods are fixedly provided on the upper wall of the platform, and the two limit rods cooperate with the two moving rods to clamp and position.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] By stepping on the rotating plate, the top block rises and drives the movable plate to move upward. At this time, the two second sliders also move upward. After the second slider abuts against the first slider, the two first sliders drive the two sliding blocks to move away from the center of the table body through the fixed rod, and the spring is compressed; the workpiece is placed above the table body and abuts against the outer walls of the two limit rods, the rotating plate is released, and the first slider releases the limit. Due to the elastic force of the spring, the two sliding blocks move toward the center of the table body to complete the clamping of the workpiece. If the clamping force is small or large, the bolt is rotated to move the movable block, and the clamping force is changed by changing the degree of compression of the spring. Compared with the traditional clamp, the clamp makes clamping and positioning faster and more convenient, and the clamping force can be changed according to the material of the workpiece and the requirements of processing accuracy, thereby improving the applicability of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure from a first viewing angle in the first embodiment of the present application;

[0017] Figure 2 is a schematic diagram of the overall structure of the second viewing angle in the first embodiment of the present application;

[0018] Figure 3 It is a schematic diagram of the overall structure of the third viewing angle in Example 1 of the present application.

[0019] Explanation of the accompanying drawings: 1. platform body; 2. limit rod; 3. moving rod; 4. sliding rod; 5. sliding block; 6. moving block; 7. spring; 8. bolt; 9. moving groove; 10. fixing rod; 11. first sliding block; 12. second sliding block; 13. moving plate; 14. telescopic rod; 15. connecting rod; 16. rotating shaft; 17. rotating plate; 18. top block. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-3 This application is described in further detail.

[0021] Embodiment 1

[0022] Reference Figure 1-3 A grinding positioning fixture includes a table body 1, two moving grooves 9 are provided on the top of the table body 1, sliding rods 4 are fixedly arranged in the moving grooves 9, sliding blocks 5 are provided through the sliding rods 4 and are slidably connected, moving rods 3 are fixedly connected above the sliding blocks 5, two limit rods 2 are fixedly arranged on the upper wall of the table body 1, and the two limit rods 2 cooperate with the two moving rods 3 to clamp and position. Moving blocks 6 are provided through the outer walls of the sliding rods 4 and are slidably connected, and the moving blocks 6 are elastically connected to the sliding blocks 5 through springs 7, and two bolts 8 are provided through the side walls of the table body 1 and are threadedly connected, and one end of the bolts 8 is respectively located in a moving groove 9, and the end of the bolt 8 located in the moving groove 9 is located above the sliding rod 4 and is rotatably connected to the side wall of the moving block 6.

[0023] The lower wall of the sliding block 5 is fixedly connected with a fixed rod 10, and the lower end of the fixed rod 10 is fixedly connected with a first slider 11. The lower wall of the platform body 1 is fixedly connected with a telescopic rod 14, and the lower end of the telescopic rod 14 is fixedly connected with a moving plate 13, and the upper wall of the moving plate 13 is fixedly connected with two second sliders 12.

[0024] The second sliders 12 cooperate with the first sliders 11 above them respectively. The second sliders 12 move upward to contact the first sliders 11 , and the first sliders 11 drive the sliding block 5 to move horizontally.

[0025] The lower wall of the platform body 1 is fixedly connected with a connecting rod 15, and a rotating plate 17 is rotatably arranged below the connecting rod 15. The connecting rod 15 is rotatably connected to the middle part of the upper wall of the rotating plate 17 through a rotating shaft 16. A top block 18 is fixedly connected to the upper wall of one end of the rotating plate 17 near the center of the platform body 1, and the top block 18 is located directly below the moving plate 13.

[0026] Stepping on the rotating plate 17 makes the top block 18 rise, driving the moving plate 13 to move upward, at this time the two second sliding blocks 12 also move upward, after the second sliding block 12 abuts against the first sliding block 11, the two first sliding blocks 11 drive the two sliding blocks 5 to move in the direction away from the center of the platform body 1 through the fixed rod 10, and the spring 7 is compressed; place the workpiece above the platform body 1 and abut against the outer walls of the two limit rods 2, loosen the rotating plate 17, the first sliding block 11 releases the limit, and due to the elastic force of the spring 7, the two sliding blocks 5 move in the direction close to the center of the platform body 1, and the workpiece is clamped by the cooperation of the moving rod 3 and the limit rod 2. If the clamping force is small or large, the bolt 8 is rotated to move the moving block 6 threadedly connected thereto. Since the moving rod 3 abuts against the outer wall of the workpiece, the position of the sliding block 5 does not change, and the degree of compression of the spring 7 is changed, thereby changing the clamping force.

[0027] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A grinding positioning fixture, comprising a table body (1), characterized in that: Two movable grooves (9) are provided above the platform body (1), and sliding rods (4) are fixedly arranged in the movable grooves (9), and sliding blocks (5) are arranged through the sliding rods (4) and are slidably connected to the sliding blocks (5), and movable rods (3) are fixedly connected above the sliding blocks (5), and movable blocks (6) are arranged through the outer walls of the sliding rods (4) and are slidably connected to the sliding blocks (6), and the movable blocks (6) are elastically connected to the sliding blocks (5) through springs (7), and the degree of clamping tightness can be adjusted by changing the position of the movable blocks (6).

2. A grinding positioning fixture according to claim 1, characterized in that: Two bolts (8) are provided through the side wall of the platform body (1) and are threadedly connected. One end of the bolts (8) is respectively located in one of the movable grooves (9). The end of the bolts (8) located in the movable groove (9) is located above the sliding rod (4) and is rotatably connected to the side wall of the movable block (6).

3. The grinding positioning fixture according to claim 1, characterized in that: The lower wall of the sliding block (5) is fixedly connected to a fixing rod (10), and the lower end of the fixing rod (10) is fixedly connected to a first sliding block (11).

4. A grinding positioning fixture according to claim 3, characterized in that: The lower wall of the platform body (1) is fixedly connected to a telescopic rod (14), the lower end of the telescopic rod (14) is fixedly connected to a movable plate (13), and the upper wall of the movable plate (13) is fixedly connected to two second sliding blocks (12).

5. A grinding positioning fixture according to claim 4, characterized in that: The second sliding blocks (12) are respectively matched with the first sliding blocks (11) above them. The second sliding blocks (12) move upwards to contact the first sliding blocks (11), and the first sliding blocks (11) drive the sliding blocks (5) to move horizontally.

6. The grinding positioning fixture according to claim 4, characterized in that: The lower wall of the platform body (1) is fixedly connected with a connecting rod (15), a rotating plate (17) is rotatably arranged below the connecting rod (15), and the connecting rod (15) is rotatably connected to the middle part of the upper wall of the rotating plate (17) via a rotating shaft (16).

7. A grinding positioning fixture according to claim 6, characterized in that: A top block (18) is fixedly connected to the upper wall of one end of the rotating plate (17) close to the center of the platform body (1), and the top block (18) is located directly below the moving plate (13).

8. The grinding positioning fixture according to claim 1, characterized in that: Two limiting rods (2) are fixedly arranged on the upper wall of the platform body (1), and the two limiting rods (2) cooperate with the two moving rods (3) to clamp and position.

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