Combined pneumatic milling jig

By designing a combined pneumatic milling fixture, the synchronous clamping and position adjustment of multiple parts are achieved, solving the problem of low single-clamping efficiency of existing milling fixtures and improving the production efficiency of small batches of diverse parts.

CN224347445UActive Publication Date: 2026-06-12PANZHOU VOCATIONAL & TECH SCHOOL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PANZHOU VOCATIONAL & TECH SCHOOL
Filing Date
2025-07-21
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing milling fixtures can only clamp a single part at a time, resulting in low production efficiency and failing to meet the production needs of small batches of diverse parts.

Method used

A combined pneumatic milling fixture was designed, which adopts a combination structure of base, cylinder, cover plate, pressure mechanism and side clamping mechanism. The synchronous clamping and position adjustment of the parts are realized through the connection of the cylinder and the control components, which can adapt to the rapid clamping of parts of different specifications.

Benefits of technology

It improves clamping efficiency, enabling the simultaneous clamping of parts of similar size but different specifications, adapting to the needs of small-batch production and improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a combined pneumatic milling fixture, relating to the field of parts processing technology. The utility model includes a base, a cylinder mounted in the middle of the base, a cover plate mounted on the top of the base, a pressure mechanism mounted in the middle of the top of the cover plate, and side clamping mechanisms detachably connected to both sides of the top of the cover plate. A control component is mounted on one side of the base, electrically connected to the cylinder, which controls the clamping force of the pressure mechanism on the parts. This utility model achieves rapid batch clamping of different parts by installing independent side clamping mechanisms on both sides of the top of the cover plate, installing a pressure mechanism between the two side clamping mechanisms, and installing a movable locking bolt between the pressure mechanism and the cylinder at the bottom of the cover plate. The extension and retraction control of the cylinder by the control component enables rapid batch clamping of different parts.
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Description

Technical Field

[0001] This utility model belongs to the field of parts processing technology, specifically relating to a combined pneumatic milling fixture. Background Technology

[0002] The coal industry requires the use of corresponding coal mining machinery. Most of the small parts used in some domestically produced coal mining machinery, such as farad plates, hydraulic valve cores, and hydraulic locks, are mostly purchased from outside sources. The cost of purchasing from outside sources is high. Similarly, the cost of domestic production is also high due to small-batch production. Therefore, it is necessary to use milling fixtures for processing small parts of coal mining machinery.

[0003] Existing milling fixtures typically hold individual parts. The drawback of this approach is that companies have diverse requirements for small parts, but some parts have certain similarities, resulting in low efficiency when producing them one by one.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] The purpose of this utility model is to provide a combined pneumatic milling fixture, and the technical problem to be solved is as follows: existing milling tools can only clamp a single part at a time, resulting in low production efficiency.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] A combined pneumatic milling fixture includes a base, a cylinder mounted in the middle of the base, a cover plate mounted on the top of the base, a pressurizing mechanism mounted in the middle of the top of the cover plate, side clamping mechanisms detachably connected to both sides of the top of the cover plate, and a control component mounted on one side of the base. The control component is electrically connected to the cylinder, and the cylinder is used to control the clamping force of the pressurizing mechanism on the workpiece.

[0008] As a further embodiment of this utility model: the side clamping mechanism includes four sets of adjustment holes disposed on the top of the cover plate, a fixed clamp block is placed on the top of the cover plate, and a locking bolt is threadedly connected between the fixed clamp block and one of the sets of adjustment holes.

[0009] As a further embodiment of this utility model: a fixed stop block is attached to one side of the fixed clamp block, an adjustment groove is provided in the middle of the fixed stop block, and a locking handle is threadedly connected between the adjustment groove and the end of the fixed clamp block.

[0010] As a further embodiment of this utility model: the cylinder includes a cylinder seat placed inside the base, two air intake ports are provided on one side of the bottom of the cylinder seat, an air intake pipe is installed between the air intake ports and the control component, a piston is inserted into the cylinder seat above the two air intake ports, a cylinder cover is installed on the top of the cylinder seat, and four locking bolts are threadedly connected between the cover plate and the cylinder seat along the edge.

[0011] As a further embodiment of this utility model: the pressurizing mechanism includes two side supports placed on the top of the cover plate, a pressure block is slidably connected between the two side supports, the contact surface between the side supports and the pressure block is an inclined surface, a locking bolt four is threadedly connected to the middle of the pressure block, the locking bolt four passes through the cover plate and the cylinder head, and is threadedly connected to the piston, and a movable clamp block is fixedly connected to the outside of the side supports.

[0012] As a further embodiment of this utility model: an anti-detachment column is fixedly connected to one side of the pressure block, and an anti-detachment groove is provided on the side support seat to accommodate the anti-detachment column.

[0013] The beneficial effects of this utility model are:

[0014] 1. By installing independent side clamping mechanisms on both sides of the top of the cover plate and a pressurizing mechanism in the middle of the two side clamping mechanisms, and installing a cylinder inside the base at the bottom of the cover plate and connecting the cylinder to the control component, when in use, the control component applies negative pressure to the piston inside the cylinder to attract and lock the bolt, thereby driving the pressure block to push the side support seats on both sides, thus completing the synchronous clamping function of the parts on both sides of the top of the cover plate, so as to improve the clamping efficiency of the fixture.

[0015] Furthermore, since the positions of the fixed clamp blocks in the side clamping mechanisms are adjustable, and the positions of the fixed stops installed on the sides of the fixed clamp blocks are also adjustable, the size of the parts clamped on both sides can be changed, thereby realizing the synchronous clamping function of similar but different specifications of parts, so as to meet the needs of rapid production of small batches of different parts.

[0016] 2. By setting a base on the cover plate base and installing a cylinder inside the base, and installing a locking bolt that can be moved by the piston between the cylinder and the pressurizing mechanism, the cylinder is connected to a control component with an air pump and a controller. The position of the cylinder piston can be adjusted by the control component, and the pressurizing position of the side support and the moving clamp block can be adjusted by the position of the pressure block, so as to realize the automatic and convenient pneumatic clamping function of the parts. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a partial exploded view of this utility model;

[0020] Figure 3 This is a partial half-sectional view of the present invention;

[0021] Figure 4 This is a utility model Figure 3 A magnified view of the details at point A in the middle.

[0022] In the diagram: 1. Base; 2. Cylinder; 21. Cylinder seat; 22. Air extraction port; 23. Air extraction pipe; 24. Piston; 25. Cylinder head; 26. Locking bolt three; 3. Cover plate; 4. Pressurizing mechanism; 41. Side support; 42. Pressure block; 43. Anti-detachment column; 44. Anti-detachment groove; 45. Locking bolt four; 46. Moving clamp block; 5. Side clamping mechanism; 51. Adjustment hole; 52. Fixed clamp block; 53. Locking bolt one; 54. Fixed stop block; 55. Adjustment groove; 56. Locking handle two; 6. Control component. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0024] like Figures 1 to 4 As shown, a combined pneumatic milling fixture includes a base 1, a cylinder 2 installed in the middle of the base 1, a cover plate 3 installed at the top of the base 1, a pressure mechanism 4 installed at the middle of the top of the cover plate 3, and side clamping mechanisms 5 detachably connected to both sides of the top of the cover plate 3. A control component 6 is installed on one side of the base 1, and the control component 6 is electrically connected to the cylinder 2. The cylinder 2 is used to control the clamping force of the pressure mechanism 4.

[0025] It should be noted that the bottom of the base 1 is a support plate, and the top center is provided with a cylinder chamber. The cylinder 2 is installed in the middle of the cylinder chamber. The control component 6 connected to the cylinder 2 includes a built-in PLC controller and an air pump controlled by the PLC controller. The control component 6 realizes the regulation of the air pumping volume of the cylinder 2 through the electronically controlled air pump, thereby realizing the pressure regulation function of the pressurizing mechanism 4.

[0026] The side clamping mechanism 5 includes four sets of adjustment holes 51 set at the top of the cover plate 3. A fixed clamp block 52 is placed at the top of the cover plate 3. The fixed clamp block 52 is threadedly connected to one of the sets of adjustment holes 51 with a locking bolt 53. A fixed stop block 54 is attached to one side of the fixed clamp block 52. An adjustment groove 55 is set in the middle of the fixed stop block 54. A locking handle 56 is threadedly connected to the end of the fixed clamp block 52 with the adjustment groove 55.

[0027] It should be noted that before clamping the workpiece to be processed by the pressure mechanism 4, the workpiece needs to be roughly positioned. At this time, the two locking bolts 53 need to be released, and then the fixed clamp block 52 is moved to one of the adjustment holes 51 that conform to the size of the workpiece. Then, it is re-locked, and then the locking handle 56 at the end of the fixed clamp block 52 is removed. The position of the locking handle 56 at the adjustment slot 55 is adjusted so that the fixed stop block 54 locks the side position of the workpiece. This achieves the pre-positioning of the workpiece processing position. Then, the pressure mechanism 4 clamps the adjacent sides of the workpiece to achieve the final locking of the workpiece for subsequent processing.

[0028] Furthermore, since the two side clamping mechanisms 5 on both sides of the cover plate 3 are independently adjustable, the clamp can simultaneously clamp two types of parts with similar but different sizes when clamping parts, thereby enabling rapid production of small batches of parts with different specifications to meet the production needs of coal machinery enterprises that are not large in scale but also have production efficiency requirements.

[0029] Cylinder 2 is installed in cylinder seat 21 inside base 1. Two air intake ports 22 are provided on one side of the bottom of cylinder seat 21. Air intake pipe 23 is installed between air intake ports 22 and control component 6. Piston 24 is inserted above the two air intake ports 22 in the middle of cylinder seat 21. Cylinder cover 25 is installed at the top of cylinder seat 21. Four locking bolts 26 are threaded along the edge between cover plate 3 and cylinder seat 21.

[0030] The pressurizing mechanism 4 includes two side support seats 41 placed on the top of the cover plate 3. A pressure block 42 is slidably connected between the two side support seats 41. The contact surface between the side support seats 41 and the pressure block 42 is an inclined surface. An anti-detachment column 43 is fixedly connected to one side of the pressure block 42. The side support seats 41 are adapted to the anti-detachment column 43 and are provided with an anti-detachment groove 44. A locking bolt 45 is threadedly connected to the middle of the pressure block 42. The locking bolt 45 passes through the cover plate 3 and the cylinder head 25 and is threadedly connected to the piston 24. A moving clamp block 46 is fixedly connected to the outside of the side support seats 41.

[0031] It should be noted that cylinder 2 is installed directly below pressurizing mechanism 4, and the top of cylinder head 25 is attached to the bottom surface of cover plate 3, and the two are locked by locking bolt 3 26. When control component 6 controls air pump to draw air from cylinder 2, the airflow is drawn out from the air intake port 22 inside cylinder seat 21 and pulls down piston 24 (see Figure 4 When the locking bolt 45 installed between the cylinder 2 and the pressurizing mechanism 4 moves downward, it drives the pressure block 42 to slide downward, and the side support 41 with the inclined joint opens outward, completing the final clamping function of the pre-placed part. The clamping force can be adjusted by the strength of the air suction pressure. When the processing is completed, the clamped part can be released by re-injecting airflow.

[0032] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A combined pneumatic milling fixture, comprising a base (1), characterized in that, A cylinder (2) is installed in the middle of the base (1), a cover plate (3) is installed at the top of the base (1), a pressure mechanism (4) is installed in the middle of the top of the cover plate (3), and side clamping mechanisms (5) can be detachably connected to both sides of the top of the cover plate (3). A control component (6) is installed on one side of the base (1), and the control component (6) is electrically connected to the cylinder (2). The cylinder (2) is used to control the clamping force of the pressure mechanism (4) on the part.

2. The combined pneumatic milling fixture according to claim 1, characterized in that, The side clamping mechanism (5) includes four sets of adjustment holes (51) located at the top of the cover plate (3). A fixed clamp block (52) is placed at the top of the cover plate (3). A locking bolt (53) is threadedly connected between the fixed clamp block (52) and one of the sets of adjustment holes (51).

3. A combined pneumatic milling fixture according to claim 2, characterized in that, A fixed stop block (54) is attached to one side of the fixed clamp block (52), and an adjustment slot (55) is provided in the middle of the fixed stop block (54). A locking handle (56) is threaded between the adjustment slot (55) and the end of the fixed clamp block (52).

4. A combined pneumatic milling fixture according to claim 1, characterized in that, The cylinder (2) includes a cylinder seat (21) placed inside the base (1). Two air intake ports (22) are provided on one side of the bottom of the cylinder seat (21). An air intake pipe (23) is installed between the air intake ports (22) and the control component (6). A piston (24) is inserted above the two air intake ports (22) of the cylinder seat (21). A cylinder cover (25) is installed on the top of the cylinder seat (21). Four locking bolts (26) are threaded along the edge between the cover plate (3) and the cylinder seat (21).

5. A combined pneumatic milling fixture according to claim 4, characterized in that, The pressurizing mechanism (4) includes two side supports (41) placed on the top of the cover plate (3). A pressure block (42) is slidably connected between the two side supports (41). The contact surface between the side supports (41) and the pressure block (42) is an inclined surface. A locking bolt (45) is threadedly connected to the middle of the pressure block (42). The locking bolt (45) passes through the cover plate (3) and the cylinder head (25) and is threadedly connected to the piston (24). A moving clamp block (46) is fixedly connected to the outside of the side supports (41).

6. A combined pneumatic milling fixture according to claim 5, characterized in that, The pressure block (42) is fixedly connected to an anti-detachment column (43) on one side, and the side support (41) is adapted to the anti-detachment column (43) and is provided with an anti-detachment groove (44).