Pneumatic workpiece positioning tool for machine tool machining
By using a pneumatic workpiece positioning fixture to achieve automatic locking and positioning of the workpiece, the problems of low clamping accuracy and inconvenience of manual locking in traditional machining are solved, thus improving machining efficiency.
Patent Information
- Application Number
- CN202520111898.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In traditional machining, the workpiece positioning fixtures have low clamping accuracy and are inconvenient to manually lock, resulting in low machining efficiency.
A pneumatic workpiece positioning fixture is adopted, including a positioning base, a top pressing platform, a pneumatic side-end clamping structure, and a clamping clamping structure. The pneumatic side-end clamping structure realizes the automatic locking and positioning of the workpiece.
It improves the processing efficiency of workpieces, is easy to operate, and eliminates the need for multi-directional operations after positioning, thus simplifying the workpiece processing flow.
Smart Images

Figure CN223700115U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of workpiece processing technology, and in particular to a pneumatic workpiece positioning fixture for machine tool machining. Background Technology
[0002] Machining is a method of processing various materials using mechanical equipment, such as milling machines, lathes, drilling machines, and sawing machines. Machining is performed by programming the workpiece, placing it within a machining coordinate system, and then the controller automatically processes the workpiece according to the requirements by recognizing and interpreting the programming language. Traditionally, after placing the workpiece, its position needs to be adjusted according to its structural shape before positioning, which is inconvenient for handling. Furthermore, positioning requires clamping from multiple directions, resulting in insufficient clamping tightness and inconvenient manual locking and adjustment, leading to low processing efficiency. Therefore, this invention proposes a pneumatic workpiece positioning fixture that solves the above problems. Utility Model Content
[0003] The purpose of this invention is to provide a pneumatic workpiece positioning fixture for machine tool machining, which solves the problems of low clamping accuracy and inconvenience of manual locking in machining positioning fixtures.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a pneumatic workpiece positioning fixture for machine tool machining, including a machining positioning table structure and a set of positioning and machining fixture structures disposed on the upper part of the machining positioning table structure, characterized in that: the positioning and machining fixture structure includes a positioning base body, a top pressure table body disposed on the upper part of the positioning base body, a pneumatic side end clamping structure disposed in the top pressure table body, and a clamping clamping seat structure disposed outside the pneumatic side end clamping structure, the pneumatic side end clamping structure includes a side pressure control cylinder disposed in the top pressure table body and a connecting guide rod body disposed at the output end of the side pressure control cylinder, the connecting guide rod body being connected to the clamping clamping seat structure.
[0005] The clamping structure includes a sleeve connecting body connected to the connecting guide rod body, a linkage frame body connected to the sleeve connecting body, and a clamping body structure located on the outside of the linkage frame body.
[0006] The clamping body structure includes a clamping connecting block located at the rear end of the linkage frame, a clamping block located in the clamping connecting block, and an edge locking screw assembly located in the clamping connecting block.
[0007] The machining positioning table structure includes a CNC transmission base and a machining connection table located on the upper part of the CNC transmission base.
[0008] The beneficial effects of this utility model are as follows: After the workpiece is initially abutted and fixed by the clamping structure, the workpiece is locked by the movement of the pneumatic side clamping structure in the pressure table body. This can achieve the positioning function for workpieces of different shapes. Moreover, the operation is simple when processing the workpiece after positioning and when canceling the positioning after processing. It does not require operation from multiple different directions, thus improving the processing efficiency of the workpiece.
[0009] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 for Figure 1 A schematic diagram of the structure of a positioning machining fixture.
[0012] Figure 3 for Figure 2 Internal display image.
[0013] Figure 4 for Figure 2 A schematic diagram of the compression body structure.
[0014] In the diagram: 1. CNC transmission base, 2. Machining connecting table, 3. Positioning base body, 4. Top pressure table body, 5. Side pressure control cylinder, 6. Connecting guide rod body, 7. Kit connecting body, 8. Linkage frame body, 9. Pressing connecting block, 10. Pressing block, 11. Side locking screw assembly, 12. Positioning mounting hole, 13. Extension edge, 14. Mounting block, 15. Cylinder mounting groove, 16. Lubrication groove. Detailed Implementation
[0015] The terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end" used in the application text to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0017] Example 1, such as Figure 1-4 As shown, a pneumatic workpiece positioning fixture for machine tool machining includes a machining positioning table structure and a set of positioning and machining fixture structures disposed on the upper part of the machining positioning table structure. The machining positioning table structure includes a CNC transmission seat 1 and a machining connecting table 2 disposed on the upper part of the CNC transmission seat. The positioning and machining fixture structure includes a positioning seat body 3, a top pressure table body 4 disposed on the upper part of the positioning seat body, a pneumatic side end clamping structure disposed in the top pressure table body, and a clamping clamping seat structure disposed outside the pneumatic side end clamping structure. The pneumatic side end clamping structure includes a side pressure control cylinder 5 disposed in the top pressure table body and a connecting guide rod body 6 disposed at the output end of the side pressure control cylinder. After the workpiece is initially abutted and fixed by the clamping clamping seat structure, the workpiece is locked by moving the pneumatic side end clamping structure in the top pressure table body. It can realize the positioning function of workpieces of different shapes. Moreover, the operation is simple when machining after positioning and when canceling positioning after machining, without the need to operate from multiple different directions, thus improving the machining efficiency of the workpiece. The top pressure platform 4 is provided with a cylinder mounting groove 15 for installing the side pressure control cylinder 5. The top pressure platform 4 is also provided with a lubrication groove 16 for transition connecting guide rod body 6 to ensure smooth operation of pneumatic components during use.
[0018] The connecting guide rod body is connected to the clamping seat structure. The positioning seat body 3 is provided with a positioning mounting hole 12 for connecting to the machining connection table 2, and an extension edge 13 is provided on the inner end of the positioning seat body 3. The clamping seat structure includes a sleeve connecting body 7 connected to the connecting guide rod body, a linkage frame body 8 connected to the sleeve connecting body, and a pressing body structure located on the outside of the linkage frame body. The front end of the connecting guide rod body 6 is provided with a mounting block 14, which is connected to the sleeve connecting body 7. The pressing body structure includes a pressing connecting block 9 located at the rear end of the linkage frame body, a pressing block 10 located in the pressing connecting block, and an edge locking screw assembly 11 located in the pressing connecting block.
[0019] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
[0020] The parts not covered in this utility model are the same as or can be implemented using existing technologies.
Claims
1. A pneumatic workpiece positioning fixture for machine tool machining, comprising a machining positioning table structure and a set of positioning and machining fixture structures disposed on the upper part of the machining positioning table structure, characterized in that: The positioning and machining fixture structure includes a positioning base, a top pressure platform on the upper part of the positioning base, a pneumatic side-end clamping structure in the top pressure platform, and a clamping clamping structure on the outside of the pneumatic side-end clamping structure. The pneumatic side-end clamping structure includes a side pressure control cylinder in the top pressure platform and a connecting guide rod at the output end of the side pressure control cylinder. The connecting guide rod is connected to the clamping clamping structure.
2. The pneumatic workpiece positioning fixture for machine tool machining as described in claim 1, characterized in that: The clamping structure includes a sleeve connecting body connected to the connecting guide rod body, a linkage frame body connected to the sleeve connecting body, and a clamping body structure located on the outside of the linkage frame body.
3. The pneumatic workpiece positioning fixture for machine tool machining as described in claim 2, characterized in that: The clamping body structure includes a clamping connecting block located at the rear end of the linkage frame, a clamping block located in the clamping connecting block, and an edge locking screw assembly located in the clamping connecting block.
4. The pneumatic workpiece positioning fixture for machine tool machining as described in claim 1, characterized in that: The machining positioning table structure includes a CNC transmission base and a machining connection table located on the upper part of the CNC transmission base.