Pneumatic jig for clamping multiple workpieces

Abstract

The utility model relates to the technical field of clamps, and discloses a multi-workpiece clamping pneumatic jig which comprises a workbench, a base is fixedly installed at the bottom of the workbench, a pneumatic control mechanism is fixedly installed on one side of the base, one end of the pneumatic control mechanism is connected with an external air pump through a pipeline, and a plurality of bases are fixedly installed on the workbench. A plurality of sliding grooves are formed in the base, Y-direction adjusting pipes are installed in the sliding grooves in a penetrating mode, X-direction adjusting blocks are installed in the Y-direction adjusting pipes in a penetrating mode, and an air cylinder is further fixedly installed at the position, close to the Y-direction adjusting pipes, of the base. The two sliding grooves are formed in the base, the first tooth grooves are formed in the two sides in the sliding grooves, the Y-direction adjusting pipes are installed in the sliding grooves in a penetrating and inserting mode, the X-direction adjusting blocks are installed in the Y-direction adjusting pipes in a penetrating and inserting mode, and therefore the adjusting accuracy of the installation position of the air cylinder can be improved in cooperation with the multiple first installation holes in the workbench, and the adjusting accuracy of the clamping point position of the contact head is adjusted; and therefore, the clamping stability of different workpieces is improved.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and in particular to a pneumatic fixture for clamping multiple workpieces. Background Technology

[0002] Pneumatic clamps for workpiece machining and fixing are automated clamps that use compressed air as a power source to quickly clamp and release workpieces. They are widely used in industrial scenarios such as machining, assembly, and welding.

[0003] Traditional clamps often have fixed cylinder mounting positions or can only be adjusted in one direction, making it difficult to adapt to the clamping point requirements of workpieces of different sizes and shapes. When batch processing complex workpieces such as stepped shafts and irregular flanges, insufficient adjustment accuracy in the X / Y axis directions often leads to the contact head failing to accurately abut against the workpiece positioning surface, causing clamping deviations, affecting the consistency of machining dimensions, and even requiring rework. Even if the cylinder is fixed to the worktable by an external clamp, although the accuracy of the cylinder mounting position adjustment can be improved, it is often necessary to use a four-way adjustment mechanism to adjust the clamping position of the contact head, which makes the entire adjustment process complicated. In addition, additional shims are needed between the external clamp and the cylinder, which further increases the difficulty of adjusting the cylinder mounting position. Utility Model Content

[0004] The purpose of this utility model is to provide a pneumatic fixture for clamping multiple workpieces, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multi-workpiece clamping pneumatic fixture includes a worktable, a base fixedly mounted on the bottom of the worktable, a pneumatic control mechanism fixedly mounted on one side of the base, one end of the pneumatic control mechanism being connected to an external air pump via a pipe, multiple bases fixedly mounted on the worktable, multiple sliding grooves formed within the bases, Y-axis adjusting pipes inserted into the sliding grooves, X-axis adjusting blocks inserted into the Y-axis adjusting pipes, a cylinder fixedly mounted on the base near the Y-axis adjusting pipes, the cylinder being connected to the pneumatic control mechanism via an air pipe, a limit block fixedly mounted on one side of the cylinder, a piston rod movably mounted within the cylinder, and a contact head fixedly mounted at one end of the piston rod.

[0007] As a further preferred embodiment of this utility model, the workbench is provided with a plurality of first mounting holes, making the workbench a perforated plate structure, thereby facilitating the precise adjustment of the cylinder mounting position by the base in conjunction with the internal Y-axis adjusting tube and X-axis adjusting block.

[0008] As a further preferred embodiment of this utility model, the base has first toothed grooves on both sides.

[0009] As a further preferred embodiment of this utility model, a first limiting flange is fixedly installed on the top of the Y-direction adjusting tube, and multiple first tooth blocks are fixedly installed on both sides of the bottom of the first limiting flange. The two sides of the first limiting flange are inserted into the corresponding first tooth grooves. After the Y-direction adjusting tube is inserted into the slide groove, the Y-direction adjusting tube can slide and adjust its position in the slide groove with the help of the first limiting flange, and provide conditions for the subsequent movement and limiting of the Y-direction adjusting tube.

[0010] As a further preferred embodiment of this utility model, a positioning groove is provided in the first limiting flange, and a second toothed groove is provided on both sides of the bottom of the positioning groove. The opening of the positioning groove can provide conditions for the X-direction adjusting block to be inserted and installed in the Y-direction adjusting tube.

[0011] As a further preferred embodiment of this utility model, a second limiting flange is fixedly installed on the upper sides of both sides of the X-axis adjusting block. A plurality of second tooth blocks are fixedly installed at the bottom of the second limiting flange. The second limiting flange is inserted into one of the second tooth grooves in the positioning groove. After the X-axis adjusting block is installed in the Y-axis adjusting tube through the second limiting flanges on both sides, the second tooth block can engage with the second tooth groove after being subjected to the downward pressure of the bolt end, while the first tooth block engages with the first tooth groove. This allows for the rapid synchronous limiting of the movement of the Y-axis adjusting tube and the X-axis adjusting block, thereby improving the clamping accuracy of the contact head according to different types of workpieces by improving the precise adjustment of the cylinder installation position.

[0012] As a further preferred embodiment of this utility model, a second mounting hole is provided in the middle of the X-axis adjusting block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this utility model, two sliding grooves are opened in the base, and first toothed grooves are opened on both sides of the sliding grooves. A Y-axis adjusting tube is inserted and installed in the sliding grooves, and an X-axis adjusting block is inserted and installed in the Y-axis adjusting tube. This can be combined with multiple first mounting holes in the worktable to improve the adjustment accuracy of the cylinder mounting position, thereby adjusting the adjustment accuracy of the clamping point of the contact head, and thus improving the clamping stability of different workpieces. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the base and cylinder structure of this utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the disassembled structure of the Y-axis adjusting tube and the X-axis adjusting block of this utility model.

[0019] In the diagram: 1. Workbench; 2. Base; 3. Pneumatic control mechanism; 4. Base; 5. Slide groove; 6. Y-axis adjusting pipe; 7. X-axis adjusting block; 8. Cylinder; 9. Limiting block; 10. Piston rod; 11. Contact head; 12. First mounting hole; 13. First tooth groove; 14. First limiting flange; 15. First tooth block; 16. Positioning groove; 17. Second tooth groove; 18. Second limiting flange; 19. Second tooth block; 20. Second mounting hole. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] like Figures 1-4 As shown, the present invention provides a multi-workpiece clamping pneumatic fixture, including a worktable 1, a base 2 fixedly installed at the bottom of the worktable 1, a pneumatic control mechanism 3 fixedly installed on one side of the base 2, one end of the pneumatic control mechanism 3 being connected to an external air pump via a pipe, multiple bases 4 fixedly installed on the worktable 1, multiple sliding grooves 5 being opened in the bases 4, Y-axis adjusting pipes 6 being inserted into the sliding grooves 5, X-axis adjusting blocks 7 being inserted into the Y-axis adjusting pipes 6, a cylinder 8 being fixedly installed on the base 4 near the Y-axis adjusting pipes 6, the cylinder 8 being connected to the pneumatic control mechanism 3 via an air pipe, a limit block 9 being fixedly installed on one side of the cylinder 8, a piston rod 10 being movably installed inside the cylinder 8, and a contact head 11 being fixedly installed at one end of the piston rod 10.

[0022] like Figure 1 As shown, the workbench 1 has multiple first mounting holes 12, making the workbench 1 a perforated plate structure, which facilitates the precise adjustment of the cylinder 8 mounting position by the base 4 in conjunction with the internal Y-axis adjusting tube 6 and X-axis adjusting block 7.

[0023] like Figures 2-4As shown, the base 4 has first toothed grooves 13 on both sides. A first limiting flange 14 is fixedly installed on the top of the Y-direction adjusting tube 6. Multiple first toothed blocks 15 are fixedly installed on both sides of the bottom of the first limiting flange 14, and the two sides of the first limiting flange 14 are inserted into the corresponding first toothed grooves 13. After the Y-direction adjusting tube 6 is inserted into the slide groove 5, the Y-direction adjusting tube 6 can slide and adjust its position in the slide groove 5 with the help of the first limiting flange 14, and provide conditions for the subsequent movement and limiting of the Y-direction adjusting tube 6. A positioning groove 16 is opened in the first limiting flange 14. A second toothed groove 17 is opened on both sides of the bottom of the positioning groove 16. The opening of the positioning groove 16 can provide conditions for the X-direction adjusting block 7 to be inserted into the Y-direction adjusting tube 6. The X-direction adjusting block 7 has two toothed grooves on both sides. A second limiting flange 18 is fixedly installed at each of the two sides. Multiple second tooth blocks 19 are fixedly installed at the bottom of the second limiting flange 18. The second limiting flange 18 is inserted into one of the second tooth grooves 17 in the positioning groove 16. After the X-direction adjusting block 7 is installed in the Y-direction adjusting tube 6 through the second limiting flanges 18 on both sides, the second tooth block 19 can be engaged with the second tooth groove 17 after being subjected to the downward pressure of the bolt end. The first tooth block 15 is engaged with the first tooth groove 13, which can quickly and synchronously limit the movement of the Y-direction adjusting tube 6 and the X-direction adjusting block 7. In this way, the clamping accuracy of the contact head 11 can be improved according to different types of workpieces by accurately adjusting the installation position of the lifting cylinder 8. A second mounting hole 20 is opened in the middle of the X-direction adjusting block 7.

[0024] It should be noted that this utility model is a multi-workpiece clamping pneumatic fixture. In use, the base 4 is first placed on the worktable 1, and the installation position of the cylinder 8 is adjusted by adjusting the position of the base 4. Then, the clamping point of the contact head 11 is adjusted by adjusting the installation position of the cylinder 8. Next, according to the workpiece size, the Y-axis adjusting tube 6 slides within the groove 5 of the base 4 to adjust the Y-axis position of the second mounting hole 20. Simultaneously, the X-axis adjusting block 7 slides within the Y-axis adjusting tube 6 to adjust the X-axis position of the second mounting hole 20, thereby achieving… Aligning the second mounting hole 20 in the X-axis adjusting block 7 with the corresponding first mounting hole 12 improves the adjustment accuracy of the clamping point of the contact head 11 and simplifies the adjustment and fixing process. After adjustment, the pneumatic control mechanism 3 controls the piston rod 10 in the cylinder 8 to extend, driving the contact head 11 to press against the workpiece. The limit block 9 limits the stroke of the piston rod 10 to ensure uniform clamping force. When the workpiece model needs to be changed, it is only necessary to readjust the installation position of the base 4 and the cylinder 8 by adjusting the Y-axis adjusting tube 6 and the X-axis adjusting block 7. This allows for quick adaptation to the clamping point requirements of different workpieces.

[0025] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pneumatic fixture for clamping multiple workpieces, characterized in that: The device includes a workbench (1), a base (2) fixedly installed at the bottom of the workbench (1), a pneumatic control mechanism (3) fixedly installed on one side of the base (2), one end of the pneumatic control mechanism (3) being connected to an external air pump through a pipe, multiple bases (4) fixedly installed on the workbench (1), multiple sliding grooves (5) being opened in the bases (4), Y-direction adjusting pipes (6) being inserted in the sliding grooves (5), X-direction adjusting blocks (7) being inserted in the Y-direction adjusting pipes (6), a cylinder (8) being fixedly installed on the bases (4) near the Y-direction adjusting pipes (6), the cylinder (8) being connected to the pneumatic control mechanism (3) through an air pipe, a limit block (9) being fixedly installed on one side of the cylinder (8), a piston rod (10) being movably installed in the cylinder (8), and a contact head (11) being fixedly installed at one end of the piston rod (10).

2. The multi-workpiece clamping pneumatic fixture according to claim 1, characterized in that: The workbench (1) has multiple first mounting holes (12).

3. The multi-workpiece clamping pneumatic fixture according to claim 1, characterized in that: The base (4) has a first toothed groove (13) on both sides.

4. A multi-workpiece clamping pneumatic fixture according to claim 3, characterized in that: The top of the Y-direction adjusting tube (6) is fixedly installed with a first limiting flange (14), and multiple first tooth blocks (15) are fixedly installed on both sides of the bottom of the first limiting flange (14), and the two sides of the first limiting flange (14) are inserted into the corresponding first tooth groove (13).

5. A multi-workpiece clamping pneumatic fixture according to claim 4, characterized in that: The first limiting flange (14) has a positioning groove (16) inside, and the bottom sides of the positioning groove (16) have second toothed grooves (17).

6. A multi-workpiece clamping pneumatic fixture according to claim 5, characterized in that: The upper sides of the X-direction adjusting block (7) are fixedly installed with second limiting flanges (18), and multiple second tooth blocks (19) are fixedly installed at the bottom of the second limiting flanges (18). The second limiting flanges (18) are inserted into one of the second tooth grooves (17) in the positioning groove (16).

7. A multi-workpiece clamping pneumatic fixture according to claim 1, characterized in that: A second mounting hole (20) is provided in the middle of the X-axis adjustment block (7).

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