A compression mechanism

Abstract

The utility model discloses a kind of compression mechanisms, including mounting block, the front end surface of mounting block is provided with two straight line guides parallel, two straight line guides are installed with mounting plate, the mounting plate is installed with pressing plate seat, the lower end of the pressing plate seat is provided with connecting shaft, the lower end of the connecting shaft is provided with pneumatic cylinder, the upper end of the pressing plate seat is provided with pressing plate, the front end of the pressing plate is welded with floating pressing plate head;The utility model structure design is reasonable, practical convenient, by designing pneumatic cylinder depression and deadweight depression, can make compression mechanism realize two different depression modes to workpiece and be compressed and fixed, while two different depression modes can be adjusted to the compression force of workpiece, improve the practical flexibility of compression mechanism.

Description

Technical Field

[0001] This utility model relates to the field of mechanical production equipment, and in particular to a pressing mechanism. Background Technology

[0002] In the production and processing of mechanical parts, some workpieces often need to be welded. In order to prevent the workpieces from deviating or falling off the welding position during the welding process, a clamping mechanism is used to firmly fix the workpieces at the welding position. Traditional clamping mechanisms simply use a cylinder to directly drive the clamping plate to clamp the workpiece. This method is relatively simple and crude, and it cannot achieve easy adjustment of the clamping force. When the clamping plate clamps the workpiece, the workpiece is easily damaged due to excessive clamping force, resulting in more defective workpieces and hindering the production of high-quality workpieces. Therefore, improvements are still needed. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a pressing mechanism, including a mounting block. Two linear guide rails are arranged parallel to each other on the front end face of the mounting block, and a mounting plate is mounted on the two linear guide rails. A pressure plate seat is mounted on the mounting plate, a connecting shaft is provided at the lower end of the pressure plate seat, and a cylinder is provided at the lower end of the connecting shaft. A pressure plate is provided at the upper end of the pressure plate seat, and a floating pressure plate head is welded to the front end of the pressure plate. A bracket is provided near the front end of the lower end face of the pressure plate, and a pressure sensor is mounted on the bracket. A scale block is mounted on the upper end face of the pressure plate, and an adjusting slider is mounted on the scale block. A counterweight is mounted on the adjusting slider. A pressure regulating valve is mounted on one side wall of the mounting block, and an air pipe is provided between the pressure regulating valve and the cylinder, and the air pipe connects them.

[0004] Preferably, a first stop is provided at the lower end of the linear guide rail, and the first stop is fixedly installed on the mounting block. A second stop is provided at the upper end of the linear guide rail, and the second stop is fixedly installed on the mounting block.

[0005] Preferably, multiple positioning posts are provided on both the left and right sides of the adjusting slider.

[0006] Preferably, the upper end of the mounting block has a rectangular slot for placing the scale block.

[0007] Preferably, a key is provided between the pressure plate seat and the pressure plate.

[0008] Preferably, the rear end face of the mounting block is provided with reinforcing ribs.

[0009] Preferably, a third stop is provided at the front end of the scale block.

[0010] The beneficial effects of this utility model are: the structure of this utility model is reasonable and convenient to use. By designing cylinder pressing and self-weight pressing, the clamping mechanism can achieve two different pressing methods to clamp and fix the workpiece. At the same time, the clamping force on the workpiece can be adjusted in both different pressing methods, which improves the practical flexibility of the clamping mechanism. Attached Figure Description

[0011] This utility model will be described by way of example and with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a top view of the structure of this utility model; In the diagram: 1. Positioning pin; 2. Cylinder; 3. Pressure sensor; 4. Linear guide rail; 5. Pressure regulating valve; 6. Floating pressure plate head; 7. Air pipe; 8. Connecting shaft; 9. Mounting plate; 10. Pressure plate seat; 11. Reinforcing rib; 12. Key; 13. Bracket; 14. First stop block; 15. Second stop block; 16. Mounting block; 17. Counterweight block; 18. Third stop block; 19. Adjusting slider; 20. Scale block; 21. Pressure plate. Detailed Implementation

[0012] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0013] Unless otherwise stated, any feature in this specification may be replaced by other equivalent or similar features. That is, unless otherwise stated, each feature is merely one example of a series of equivalent or similar features.

[0014] like Figure 1 , 2A pressing mechanism as shown in Figure 3 includes a mounting block 16. Two linear guide rails 4 are arranged parallel to each other on the front end face of the mounting block 16. A mounting plate 9 is mounted on the two linear guide rails 4. A pressure plate seat 10 is mounted on the mounting plate 9. A connecting shaft 8 is provided at the lower end of the pressure plate seat 10. A cylinder 2 is provided at the lower end of the connecting shaft 8. A pressure plate 21 is provided at the upper end of the pressure plate seat 10. A floating pressure plate head 6 is welded to the front end of the pressure plate 21. A bracket 13 is provided near the front end position on the lower end face of the pressure plate 21. A pressure sensor 3 is mounted on the bracket 13. A scale block 20 is mounted on the upper end face of the pressure plate 21. An adjusting slider 19 is mounted on the scale block 20. A counterweight block 17 is mounted on the adjusting slider 19. A pressure regulating valve 5 is mounted on one side wall of the mounting block 16. An air pipe 7 is provided between the pressure regulating valve 5 and the cylinder 2 and is connected to the cylinder 2.

[0015] A first stop 14 is provided at the lower end of the linear guide rail 4 and is fixedly installed on the mounting block 16. A second stop 15 is provided at the upper end of the linear guide rail 4 and is fixedly installed on the mounting block 16.

[0016] Multiple positioning posts 1 are provided on both the left and right sides of the adjusting slider 19.

[0017] The upper end of the mounting block 16 is provided with a rectangular slot for placing the scale block 20.

[0018] A key 12 is provided between the pressure plate seat 10 and the pressure plate 21.

[0019] A reinforcing rib 11 is provided on the rear end face of the mounting block 16.

[0020] A third stop block 18 is provided at the front end of the scale block 20.

[0021] The cylinder 2 is mounted on the base plate of the fixture. Example 1

[0022] During use, the workpiece to be clamped is placed directly below the floating pressure head 6. After the workpiece is positioned, the connecting shaft 8 is pulled by the cylinder 2, which further moves the mounting plate 9 downward on the linear guide rail 4. This causes the pressure plate seat 10, the pressure plate 21, and the floating pressure head 6 to move downward until the floating pressure head 6 contacts the workpiece and applies pressure to it. At this time, the pressure sensor 3 transmits the pressure applied to the workpiece by the floating pressure head 6 in real time. If it is necessary to adjust the pressure applied to the workpiece by the floating pressure head 6, the air pressure supplied to the cylinder is adjusted by the pressure regulating valve, thereby adjusting the pressure applied to the workpiece by the floating pressure head 6. Example 2

[0023] During use, the workpiece to be clamped is placed directly below the floating pressure plate head 6. After the workpiece is positioned, the adjusting slider 19 is pushed forward on the scale block 20. As the adjusting slider 19 moves forward on the scale block 20, the weight of the adjusting slider 19 and the counterweight 17 on it gradually moves towards the front end of the pressure plate 21, thereby applying pressure to the pressure plate 21. This causes the pressure plate 21 and the floating pressure plate head 6 to move downward until the floating pressure plate head 6 contacts the workpiece and applies pressure to it. If it is necessary to adjust the pressure applied to the workpiece by the floating pressure plate head 6, simply move the position of the adjusting slider 19 on the scale block 20 to adjust the pressure applied to the workpiece by the floating pressure plate head 6. When it is not necessary to adjust the pressure applied to the workpiece by the floating pressure plate head 6, the adjusting slider 19 can be fixed at a certain position on the scale block 20 by turning the knob positioning post 1.

[0024] The reinforcing rib 11 makes the installation of the mounting block 16 more stable.

[0025] The first baffle 14 and the second baffle 15 are configured to limit the movement distance of the mounting plate 9 to the linear guide rail 4.

[0026] The third baffle 18 can limit the maximum movement distance of the adjustment slider 19 on the scale block 20.

[0027] The beneficial effects of this utility model are: the structure of this utility model is reasonable and convenient to use. By designing cylinder pressing and self-weight pressing, the clamping mechanism can achieve two different pressing methods to clamp and fix the workpiece. At the same time, the clamping force on the workpiece can be adjusted in both different pressing methods, which improves the practical flexibility of the clamping mechanism.

[0028] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A clamping mechanism, comprising a mounting block (16), characterized in that, Two linear guide rails (4) are arranged parallel to each other on the front end face of the mounting block (16). A mounting plate (9) is mounted on the two linear guide rails (4). A pressure plate seat (10) is mounted on the mounting plate (9). A connecting shaft (8) is provided at the lower end of the pressure plate seat (10). A cylinder (2) is provided at the lower end of the connecting shaft (8). A pressure plate (21) is provided at the upper end of the pressure plate seat (10). A floating pressure plate head (6) is welded to the front end of the pressure plate (21). The lower end of the pressure plate (21) A bracket (13) is provided near the front end of the plate. A pressure sensor (3) is installed on the bracket (13). A scale block (20) is installed on the upper surface of the pressure plate (21). An adjustment slider (19) is installed on the scale block (20). A counterweight block (17) is installed on the adjustment slider (19). A pressure regulating valve (5) is installed on one side wall of the mounting block (16). An air pipe (7) is provided between the pressure regulating valve (5) and the cylinder (2) and is connected through the air pipe (7).

2. The clamping mechanism according to claim 1, characterized in that, A first stop (14) is provided at the lower end of the linear guide (4), and the first stop (14) is fixedly installed on the mounting block (16). A second stop (15) is provided at the upper end of the linear guide (4), and the second stop (15) is fixedly installed on the mounting block (16).

3. The clamping mechanism according to claim 1, characterized in that, Multiple positioning posts (1) are provided on both the left and right sides of the adjusting slider (19).

4. The clamping mechanism according to claim 1, characterized in that, The upper end of the mounting block (16) is provided with a rectangular slot for placing the scale block (20).

5. A clamping mechanism according to claim 1, characterized in that, A key (12) is provided between the pressure plate seat (10) and the pressure plate (21).

6. A clamping mechanism according to claim 1, characterized in that, The rear end face of the mounting block (16) is provided with reinforcing ribs (11).

7. A clamping mechanism according to claim 1, characterized in that, The scale block (20) is provided with a third stop (18) at its front end.

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