Rear pneumatic clamping device for workpiece machining

Abstract

The utility model belongs to the field of workpiece clamping equipment, and particularly relates to a rear pneumatic clamping device for workpiece machining, which comprises a clamping component, the clamping component is clamped into the bottom of a claw-shaped structure of a workpiece to be machined in a rotating mode, and the workpiece to be machined is rotatably mounted in a clamping frame. And a clamping frame is pulled down through a lifting air cylinder in the clamping assembly, so that the to-be-machined workpiece is tightly pressed on the top of the shell. The clamping assembly is arranged, the clamping frame on the clamping assembly is used for clamping a special-shaped workpiece to be machined into the clamping opening, the workpiece to be machined is fed into the inner layer in a rotating mode, the clamping frame in linkage with the lifting air cylinder is pulled downwards through the closing operation of the lifting air cylinder, and then the workpiece to be machined is clamped into the clamping opening. The lifting air cylinder drives the to-be-machined workpiece to be compacted on the top of the shell, fastening of the special-shaped workpiece can be achieved only through the simple inner buckle screwing-in effect and the pull-down compaction effect, follow-up machining is facilitated, the workpiece does not need to be directly machined manually, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to the field of workpiece clamping devices, in particular to a pneumatic clamping device for workpiece machining. Background Technique

[0002] During the machining process of special-shaped parts, due to their unique shapes, traditional clamping fixtures cannot effectively clamp them, let alone perform clamping machining. Manual clamping operations are often required, but during manual machining operations, there may be situations where the residue of the workpiece splashes or the machining is not uniform enough, resulting in both safety problems and unqualified product quality. In order to effectively solve the problem of machining special-shaped parts, the utility model proposes a pneumatic clamping device for workpiece machining that can effectively fix special-shaped parts with a multi-claw structure. Content of the Utility Model

[0003] The purpose of the utility model is to solve the problems in the background technique, and a pneumatic clamping device for workpiece machining is proposed.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme: A pneumatic clamping device for workpiece machining includes a clamping component. The clamping component is clamped into the bottom of the claw-shaped structure of the workpiece to be machined by rotation, so that the workpiece to be machined is rotatably installed inside the clamping frame, and then the clamping frame is pulled down by a lifting cylinder inside the clamping component, so that the workpiece to be machined is pressed against the top of the housing.

[0005] In the above pneumatic clamping device for workpiece machining, the clamping component is provided with a clamping position opening that matches the number of claws of the workpiece to be machined, and the clamping position opening is arranged on the upper surface of the clamping frame. The effect of matching clamping positions is effectively achieved.

[0006] In the above pneumatic clamping device for workpiece machining, the clamping frame is arranged in a columnar connection in upper and lower layers. The upper layer plate surface is provided with a fan-shaped clamping position opening, and the lower layer plate is connected to the upper layer plate by a connecting column. The lower layer plate is slidably arranged inside the housing. Through the effect of upper layer clamping and lower layer limiting, the effect of firmly grasping the workpiece is effectively achieved.

[0007] In the above pneumatic clamping device for workpiece machining, the outer edge of the lower layer plate is provided with an arc-shaped notch, and a guiding column for matching the arc-shaped notch is arranged inside the housing, which is beneficial to improving the stability when the cylinder drives the lower layer plate to move.

[0008] In the above-mentioned pneumatic clamping device for workpiece processing, a lifting cylinder is installed inside the housing, and a socket moving disc is installed at the movable end of the lifting cylinder. During assembly, the protrusion in the middle of the socket moving disc is fixedly connected to the middle of the lower layer plate, so that when the lifting cylinder retracts, it can drive the workpiece to be processed and press it on the limit plate.

[0009] In the above-mentioned pneumatic clamping device for workpiece processing, a limit plate is further provided on one side of the top of the housing facing the workpiece to be processed. The limit plate is locked to the top of the housing by screws. During assembly, the workpiece to be processed is pressed on the limit plate, effectively realizing the functions of positioning and limiting.

[0010] In the above-mentioned pneumatic clamping device for workpiece processing, a positioning step is provided on the limit plate to facilitate the embedding of the limit plate.

[0011] In the above-mentioned pneumatic clamping device for workpiece processing, a mounting seat is sleeved on the bottom of the housing from bottom to top. A cavity is provided in the middle of the mounting seat, and the lifting cylinder is fixedly installed inside the cavity.

[0012] In the above-mentioned pneumatic clamping device for workpiece processing, there are at least two or more positioning ports to facilitate multi-position clamping.

[0013] In the above-mentioned pneumatic clamping device for workpiece processing, the clamping assembly is externally connected to a robotic arm or mechanical component for processing.

[0014] Compared with the existing technology, the advantages of the above-mentioned pneumatic clamping device for workpiece processing are as follows:

[0015] In the present utility model, by setting the clamping assembly and using the clamping frame on the clamping assembly, the special-shaped workpiece to be processed is clamped into the positioning ports. By rotating, the workpiece to be processed is first sent into the inner layer. At the same time, the rotating operation can adjust the position of the claw structure of the processed workpiece, so that the workpiece to be processed is misaligned and installed on the clamping frame. By operating the lifting cylinder to close, the clamping frame linked to the lifting cylinder is pulled downward, that is, the workpiece to be processed is driven by the lifting cylinder and pressed on the top of the housing, thereby achieving the effect of limiting. Only by simply screwing in the inner buckle and pulling down and pressing can the fastening of the special-shaped part be realized, which is convenient for subsequent processing without directly processing the workpiece manually, reducing potential safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exploded view of the present utility model with the workpiece to be processed;

[0017] Figure 2 is an assembly drawing of the present utility model;

[0018] Figure 3 isFigure 2 Top view;

[0019] Figure 4 Is the split view of the present utility model;

[0020] Figure 5 Is Figure 2 Side view;

[0021] Figure 6 Is the three-dimensional view of the clamping assembly;

[0022] Figure 7 Is Figure 6 Side view;

[0023] Figure 8 Is Figure 7 The sectional view taken along B-B in

[0024] In the figure: workpiece to be processed (1), clamping assembly (2), clamping position opening (21), clamping frame (22), limiting plate (23), socketed movable disk (24), lifting cylinder (25,), housing (26), mounting seat (27). Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] Refer to Figure 1-8 , the first embodiment of a pneumatic clamping device for workpiece processing, including a clamping assembly 2. The clamping assembly 2 is clamped into the bottom of the claw-shaped structure of the workpiece to be processed 1 by rotation, so that the workpiece to be processed 1 is rotatably installed inside the clamping frame 22. Then, the clamping frame 22 is pulled down by the lifting cylinder 25 inside the clamping assembly 2, so that the workpiece to be processed 1 is pressed against the top of the housing 26. The workpiece to be processed 1 is positioned in the clamping frame 22, and then pulled towards the lifting cylinder 25 to achieve the compaction effect;

[0027] For details, refer to Figure 2 , 3 and 6. The clamping assembly 2 is provided with clamping position openings 21 that match the number of claws of the workpiece to be processed 1. The clamping position openings 21 are arranged on the upper surface of the clamping frame 22. By providing the clamping position openings 21, it is convenient to transfer the workpiece to be processed 1 into the clamping position. Among them, at least two or more clamping position openings 21 are provided, and it should be noted that the clamping position openings 21 are evenly distributed on the clamping frame 22.

[0028] For details, refer to Figure 1 and 4, in order to facilitate the realization of the compaction effect of the workpiece 1 to be processed, the clamping frame 22 is arranged in a columnar connection in two layers up and down. The upper layer plate surface is provided with the fan-shaped clamping opening 21. The lower layer plate is connected to the upper layer plate through a connecting column. The lower layer plate is slidably arranged inside the housing 26. In order to enable the lifting cylinder 25 to drive the clamping frame 22 smoothly, an arc-shaped notch is provided at the outer edge of the lower layer plate of the clamping frame 22. At the same time, a guiding column for matching the arc-shaped notch is provided inside the housing 26, which not only has the effect of limiting sliding but also has the effect of guiding;

[0029] See the appendix Figure 4 , 5 and 8. A limiting plate 23 is further provided on one side of the top of the housing 26 facing the workpiece 1 to be processed. The limiting plate 23 is locked to the top of the housing 26 by screws. During assembly, the workpiece 1 to be processed is compacted on the limiting plate 23. In order to facilitate the compaction effect, a clamping step is provided on the limiting plate 23. Specifically: the lifting cylinder 25 is installed inside the housing 26, and a socket movable disk 24 is installed at the movable end of the lifting cylinder 25. During assembly, the protrusion in the middle of the socket movable disk 24 is fixedly connected to the middle of the lower layer plate. The lower layer plate is driven to move downward through the socket movable disk 24, so that the workpiece 1 to be processed is compacted on the limiting plate 23;

[0030] In order to facilitate the installation of the lifting cylinder 25, a mounting seat 27 is sleeved under the bottom of the housing 26. A cavity is provided in the middle of the mounting seat 27, and the lifting cylinder 25 is fixedly installed inside the cavity.

[0031] When the present utility model is in use, the lifting cylinder is in an open state. At this time, the workpiece to be processed has not been inserted yet. After the workpiece to be processed is pressed into through the clamping opening and slightly rotated in other directions, the bottom of the claw-shaped structure of the workpiece to be processed is buckled on the clamping frame. The lower layer plate of the clamping frame itself is linked with the socket movable disk at the movable end of the lifting cylinder. The clamping frame is driven to move back through the socket movable disk, that is, the lifting cylinder is closed at this time, and the movable end in the lifting cylinder is retracted inward. At this time, the workpiece to be processed is also driven to press downward against the top of the housing and finally compacted on the limiting plate at the top of the housing, achieving the effect of fixed clamping and facilitating subsequent machining. It should be noted that this device requires manual cooperation to first screw in the workpiece to be processed, rather than being completely automatic. After the manual completes this task, they can leave the processing area to reduce the impact during machining.

[0032] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A pneumatic clamping device for workpiece processing, characterized in that: The invention comprises a clamping assembly (2), wherein the clamping assembly (2) comprises a clamping frame (22), a lifting cylinder (25) and a shell (26), wherein the clamping frame (22) and the lifting cylinder (25) are arranged on the inner side of the shell (26), the clamping frame (22) is arranged above the lifting cylinder (25) and is connected thereto, and the clamping assembly (2) is provided with a clamping opening (21) matching the number of claws of a workpiece (1) to be processed; during assembly, the clamping assembly (2) is rotated and clamped into the bottom of the claw structure of the workpiece (1) to be processed.

2. A pneumatic clamping device for workpiece processing according to claim 1, characterized in that: The locking opening (21) is arranged on the upper surface of the clamping frame (22).

3. A pneumatic clamping device for workpiece processing according to claim 1 or 2, characterized in that: The clamping frame (22) is arranged in a columnar connection of two layers, the upper layer plate surface is provided with a fan-shaped clamping opening (21), the lower layer plate is connected to the upper layer plate via a connecting column, and the lower layer plate is slidably arranged inside the shell (26).

4. A pneumatic clamping device for workpiece processing according to claim 3, characterized in that: An arc-shaped notch is arranged at the outer edge of the lower plate, and a guide column for matching the arc-shaped notch is arranged on the inner side of the outer shell (26).

5. A pneumatic clamping device for workpiece processing according to claim 4, characterized in that: The lifting cylinder (25) is installed inside the shell (26), and the movable end of the lifting cylinder (25) is installed with a sleeve movable disk (24). During assembly, the protrusion in the middle of the sleeve movable disk (24) is fixedly connected to the middle of the lower plate.

6. A pneumatic clamping device for workpiece processing according to claim 5, characterized in that: A limiting plate (23) is also provided on the top of the shell (26) facing the side of the workpiece (1) to be processed. The limiting plate (23) is screwed to the top of the shell (26). During assembly, the workpiece (1) to be processed is pressed against the limiting plate (23).

7. A pneumatic clamping device for workpiece processing according to claim 6, characterized in that: The limiting plate (23) is provided with a locking step.

8. A pneumatic clamping device for workpiece processing according to claim 7, characterized in that: A mounting seat (27) is sleeved below the bottom of the housing (26), and a cavity is provided in the middle of the mounting seat (27), and the lifting cylinder (25) is fixedly mounted inside the cavity.

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