Pneumatic positioning fixture

Abstract

This utility model provides a pneumatic positioning clamp, relating to the field of pneumatic clamps. It includes a base shell, with a base fixedly connected to the top of the base shell. A support arm is rotatably connected to the inner side of the base. An external air pipe connects to a valve core to adjust the position of the piston in the cylinder by inflating or deflating it, causing the output end to contract. A connecting piece drives the support arm to rotate inside the base, lifting the support arm upwards. A workpiece to be clamped is placed on the surface of the flat plate. A reverse control valve core extends the output end, causing a pressure block to press against the workpiece surface, facilitating workpiece clamping and improving the adaptability of the device. A knob presses against the surface of the support arm, and rotating the knob limits the position of the threaded post, improving the stability of the threaded post during installation. A support plate is positioned below the pressure block, providing support for the flat plate and the workpiece placed on its surface. A rotating bolt positions the flat plate, facilitating adjustment of the crossbar position.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic clamps, and in particular to a pneumatic positioning clamp. Background Technology

[0002] A pneumatic clamp is a mechanical device that uses air pressure as a power source. It is mainly used to fix the workpiece during the manufacturing process and ensure that it maintains the correct position during processing or inspection.

[0003] In the prior art, such as the pneumatic positioning fixture disclosed in Chinese Publication No. CN212217125U, a pneumatic positioning fixture includes: a bracket; a cylinder fixed on the bracket; and a chuck disposed on the bracket. The chuck includes a pair of symmetrically arranged arc-shaped clips, one of which is fixed on the bracket, and the other arc-shaped clip is connected to the end of the piston rod of the cylinder. The cylinder controls the engagement and disengagement of the other arc-shaped clip with the first arc-shaped clip for fixing and loading / unloading workpieces. This utility model has the function of quickly and accurately positioning the workpiece to be processed.

[0004] The aforementioned application achieves the function of quickly and accurately positioning the workpiece to be processed through multiple components. However, the device does not easily achieve the effect of conveniently adjusting the position of the workpiece to be clamped, which to some extent reduces the overall convenience and timeliness. Utility Model Content

[0005] This invention facilitates the adjustment of the position of the crossbar, thereby adjusting the position of the workpiece being clamped, and improves the adaptability of the device. By controlling the position of the threaded column, this invention facilitates the clamping of workpieces of different sizes, further improving the adaptability of the device and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a pneumatic positioning clamp, including a base shell, a base fixedly connected to the top of the base shell, a support arm rotatably connected to the inner side of the base, a threaded post internally threaded into the support arm, a pressure block fixedly connected to the bottom of the threaded post, a slide rail fixedly connected to the inner side of the base shell, a flat plate engaged at the top of the slide rail, a crossbar fixedly connected to the top of the flat plate, a groove formed on the top surface of the flat plate, a connecting shaft fixedly connected to the top surface of the base shell, and a cylinder rotatably connected to the top of the base shell via the connecting shaft. When using the device, the support arm rotates to a suitable position within the base to clamp the workpiece. Furthermore, the installation method of the flat plate and slide rail facilitates adjustment of the positions of the flat plate and crossbar, thereby positioning the workpiece to be clamped and improving the adaptability of the device.

[0007] Preferably, the threaded post has a knob threadedly fitted on its surface, and the number of knobs is set to two. The inner side of the knob abuts against the surface of the support arm. When using the device, the design of the number and position of the knobs makes it easy to rotate the knobs to limit the threaded post, thereby improving the stability of the threaded post during installation.

[0008] Preferably, a support plate is fixedly connected inside the bottom shell, and the top surface of the support plate is slidably connected to the flat plate. The support plate is located below the pressure block. When using the device, the connection method and position design of the support plate enable the support plate to support the flat plate and the workpiece placed on the surface of the flat plate, thereby improving the stability of the device during operation.

[0009] Preferably, the slide rail has a threaded connection with bolts, which press against the surface of the flat plate. The slide rail and the slide groove are slidably connected. When using the device, the connection method between the bolts and the flat plate and the slide groove enables the bolts to position the flat plate, thereby improving the stability of the flat plate after adjustment.

[0010] Preferably, the output end of the cylinder is fixedly connected to a connector, and the inner side of the connector is rotatably connected to one end of the support arm. The support arm is T-shaped. When using the device, the connection method between the connector, the cylinder, and the support arm is designed to facilitate the rotation of the support arm by the cylinder.

[0011] Preferably, valve cores are fixedly connected to the top of the cylinder near both ends. When using the device, the valve core design at the top of the cylinder facilitates control of the extension and retraction of the cylinder's output end.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the position of the piston in the cylinder is adjusted by connecting the valve core through the external air pipe to charge and depress the cylinder, so that the output end contracts. The connecting piece drives the support arm to rotate inside the base, and the support arm is raised upward. The workpiece to be clamped is placed on the surface of the flat plate. By controlling the connecting valve core in the reverse direction, the output end is stretched, and the pressure block presses the workpiece surface, which facilitates the clamping of the workpiece and improves the adaptability of the device.

[0013] 2. In this utility model, the inner side of the knob is pressed against the surface of the support arm, and the screw thread is limited by rotating the knob, which improves the stability of the screw thread during installation. The support plate is set below the pressure block, so that the support plate supports the flat plate and the workpiece placed on the flat plate surface. The rotating bolt has a positioning effect on the flat plate, which makes it easy to adjust the position of the crossbar. Attached Figure Description

[0014] Figure 1 This utility model provides a perspective view of the main structure of a pneumatic positioning fixture; Figure 2An enlarged perspective view of the connected flat plate structure in a pneumatic positioning fixture is provided for this utility model; Figure 3 An enlarged perspective view of the support arm connection structure in a pneumatic positioning fixture is provided for this utility model; Figure 4 This utility model provides an enlarged side view of the structure of a pneumatic positioning fixture.

[0015] Legend: 1. Bottom shell; 2. Base; 3. Support arm; 4. Threaded column; 5. Pressure block; 6. Knob; 7. Slide rail; 8. Support plate; 9. Flat plate; 10. Crossbar; 11. Slide groove; 12. Bolt; 13. Connecting shaft; 14. Cylinder; 141. Valve core; 15. Connecting parts. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Please see Figures 1-4 This utility model provides a technical solution: a pneumatic positioning clamp, including a base shell 1, a base 2 fixedly connected to the top of the base shell 1, a support arm 3 rotatably connected to the inner side of the base 2, a threaded post 4 threadedly fitted inside the support arm 3, a pressure block 5 fixedly connected to the bottom of the threaded post 4, a slide rail 7 fixedly connected to the inner side of the base shell 1, a flat plate 9 engaged at the top of the slide rail 7, a crossbar 10 fixedly connected to the top of the flat plate 9, a groove 11 formed on the top surface of the flat plate 9, a connecting shaft 13 fixedly connected to the top surface of the base shell 1, and a cylinder 14 rotatably connected to the top of the base shell 1 via the connecting shaft 13. When using the device, the support arm 3 is rotated to a suitable position inside the base 2 to clamp the workpiece. The installation method of the flat plate 9 and the slide rail 7 facilitates the adjustment of the position of the flat plate 9 and the crossbar 10, thereby positioning the workpiece to be clamped and improving the adaptability of the device.

[0019] like Figure 1 As shown, the threaded column 4 has a threaded fit with a knob 6. There are two knobs 6. The inner side of the knob 6 abuts against the surface of the support arm 3. When using the device, the number and position of the knobs 6 make it easy to rotate the knobs 6 to limit the threaded column 4, thereby improving the stability of the threaded column 4 during installation.

[0020] like Figure 2 and Figure 3 As shown, a support plate 8 is fixedly connected inside the bottom shell 1. The top surface of the support plate 8 is slidably connected to the plate 9. The support plate 8 is located below the pressure block 5. When using the device, the connection method and position design of the support plate 8 enable the support plate 8 to support the plate 9 and the workpiece placed on the surface of the plate 9, thereby improving the stability of the device during operation.

[0021] like Figure 3 As shown, the surface of the slide rail 7 is threaded with bolts 12, which press against the surface of the plate 9. The slide rail 7 and the slide groove 11 are slidably connected. When using the device, the connection between the bolts 12 and the plate 9 and the slide groove 11 is designed so that the bolts 12 can position the plate 9, thereby improving the stability of the plate 9 after adjustment.

[0022] like Figure 2 As shown, the output end of the cylinder 14 is fixedly connected to the connector 15, and the inner side of the connector 15 is rotatably connected to one end of the support arm 3. The support arm 3 is T-shaped. When using the device, the connection method between the connector 15 and the cylinder 14 and the support arm 3 is designed to facilitate the rotation of the support arm 3 by the cylinder 14.

[0023] like Figure 1 As shown, valve cores 141 are fixedly connected to the top of cylinder 14 near both ends. When using the device, the valve cores 141 on the top of cylinder 14 facilitate the control of the extension and retraction of the output end of cylinder 14.

[0024] The usage method and working principle of this device are as follows: First, the external air pipe connects to the valve core 141 to inflate and evacuate the cylinder 14 to adjust the position of the piston, so that the output end contracts. The connecting piece 15 drives the support arm 3 to rotate inside the base 2. The support arm 3 is raised 45 degrees and the workpiece to be clamped is placed on the surface of the plate 9. By controlling the valve core 141 in the reverse direction, the output end is stretched and the pressure block 5 presses the surface of the workpiece. Secondly, there are two knobs 6. The inner side of the knob 6 presses against the surface of the support arm 3. Rotating the knob 6 limits the threaded column 4. The support plate 8 is set below the pressure block 5 so that the support plate 8 supports the plate 9 and the workpiece placed on the surface of the plate 9. The rotating bolt 12 positions the plate 9, making it easy to adjust the position of the crossbar 10.

[0025] The cylinders used in this application are all common conventional equipment on the market and are well known to those skilled in the art. In this application, the above-mentioned equipment is used in a conventional manner without any modification to its structure and function. As for their settings, installation and electrical connection methods, those skilled in the art can debug and operate them according to the corresponding product instruction manuals, so they will not be described in detail here.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A pneumatic positioning fixture, characterized in that, Includes a bottom shell (1), a base (2) is fixedly connected to the top of the bottom shell (1), a support arm (3) is rotatably connected to the inner side of the base (2), a threaded column (4) is threaded inside the support arm (3), a pressure block (5) is fixedly connected to the bottom of the threaded column (4), a slide rail (7) is fixedly connected to the inner side of the bottom shell (1), a plate (9) is fitted on the top of the slide rail (7), a crossbar (10) is fixedly connected to the top of the plate (9), a groove (11) is opened on the top surface of the plate (9), a connecting shaft (13) is fixedly connected to the top surface of the bottom shell (1), and a cylinder (14) is rotatably connected to the top of the bottom shell (1) through the connecting shaft (13).

2. The pneumatic positioning fixture according to claim 1, characterized in that: The threaded column (4) has a knob (6) threadedly fitted on its surface. The number of knobs (6) is set to two, and the inner side of the knob (6) abuts against the surface of the support arm (3).

3. A pneumatic positioning fixture according to claim 1, characterized in that: The bottom shell (1) is fixedly connected to a support plate (8), the top surface of the support plate (8) is slidably connected to the flat plate (9), and the support plate (8) is located below the pressure block (5).

4. A pneumatic positioning fixture according to claim 1, characterized in that: The slide rail (7) has a threaded fit with a bolt (12), which presses against the surface of the plate (9). The slide rail (7) and the slide groove (11) are slidably connected.

5. A pneumatic positioning fixture according to claim 1, characterized in that: The output end of the cylinder (14) is fixedly connected to a connector (15), and the inner side of the connector (15) is rotatably connected to one end of the support arm (3), which is T-shaped.

6. A pneumatic positioning fixture according to claim 1, characterized in that: Valve cores (141) are fixedly connected to the top of the cylinder (14) near both ends.

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