Clamp for shell machining
By designing a fixture with multiple types of clamping parts and lifting components, the problem of low fixture integration is solved, stable clamping that can efficiently adapt to shells of different sizes is achieved, and production efficiency is improved.
Patent Information
- Application Number
- CN202423224991.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The existing technology has low integration of fixtures of different sizes, resulting in large space occupation and time consumption, poor clamping effect, and inability to adapt to the center of gravity of the shell.
A fixture is designed, which includes various types of clamping parts and lifting components. The clamping parts adapt to different diameters through arc-shaped contact surfaces, and the lifting components adjust the height of the shell to adapt to the center of gravity of the shell.
The integration and space utilization of the fixture are improved, the clamping parts can be quickly switched, the clamping effect is ensured, and production efficiency is improved.
Smart Images
Figure CN223313543U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of shell processing, and particularly relates to a clamp used for shell processing. Background Art
[0002] As an encapsulation structure, the housing protects key internal components, such as the motor, controller, and reducer, from external contaminants such as dust, moisture, and chemicals, while also preventing damage from mechanical shock and collision. During the housing machining process, especially when drilling or cutting, a fixture is required to hold the housing in place and ensure its stability during machining.
[0003] In the prior art, for shells of different sizes, it is usually necessary to use a variety of clamps of different sizes to match them. On the one hand, the low integration between the clamps results in a large space occupation, and it takes time to match the corresponding clamps according to the shell size during use. On the other hand, the clamping points of the clamps and the shell cannot be adaptively adjusted according to the center of gravity of the shell, resulting in poor clamping effect. Summary of the Invention
[0004] In view of this, an object of the present invention is to provide a fixture for shell processing, so as to solve the technical problem of low integration of fixtures of different sizes in the prior art.
[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:
[0006] A fixture for processing a shell, comprising a workbench, a clamping assembly located above the workbench for clamping the shell, and a lifting assembly located below the workbench for adjusting the height of the shell. The workbench includes a tabletop, and the clamping assembly includes a support plate fixedly connected to the tabletop. The support plates are two in number and arranged opposite to each other. The support plates are provided with clamping members of various types. A single clamping member includes multiple clamping blocks. The inner end surfaces of the multiple clamping blocks are curved surfaces of varying degrees and together form a discontinuous curved contact surface. As the height increases, the curvature corresponding to the curved contact surface formed by the clamping blocks in different clamping members gradually decreases, and the size and spacing of the clamping blocks in different clamping members increase synchronously.
[0007] Furthermore, a through hole is formed on the support plate, and the clamping block passes through the through hole, with its inner end located on the inner side of the support plate and its outer end located on the outer side of the support plate;
[0008] Furthermore, the outer end of the clamping block is fixedly connected with a connecting plate, and multiple clamping blocks on the same horizontal plane are connected through the connecting plate to form a whole, which facilitates the synchronous advancement or pulling out of multiple holding blocks;
[0009] Furthermore, the length of the connecting plate is greater than the span of the clamping block and both ends of the connecting plate are exposed outside the clamping block, and locking pieces are provided at both ends of the connecting plate. A through hole is provided at the end of the connecting plate, and a threaded rod is inserted into the through hole. The threaded rod is perpendicular to the plate surface of the support plate and the end surface of the fixed end of the threaded rod is fixedly connected to the outer plate surface of the support plate. The free end of the threaded rod is exposed outside the connecting plate and a nut is threadedly connected to the free end, and the nut is located on the outside of the connecting plate.
[0010] Furthermore, a receiving groove is provided on the upper surface of the table, and the receiving groove is located at the center between the clamping assemblies on both sides. The lifting assembly includes a lifting plate with a shape and size that matches the receiving groove and an electric cylinder located directly below the lifting plate. A connecting hole is provided at the center of the bottom of the receiving groove, and the output shaft of the electric cylinder passes through the connecting hole and is fixedly connected to the bottom surface of the lifting plate.
[0011] Furthermore, side plates are provided on both sides of the support plate, and a plurality of limit plates are provided between the side plates at intervals along the height direction. The limit plates correspond to the clamping members one by one, and the clamping blocks penetrate the limit plates and are slidably connected to the limit plates.
[0012] The beneficial effects of the present invention are:
[0013] (1) Compared with the existing technology, by providing multiple types of clamping parts, it is possible to adapt to shells of different diameters, and multiple types of clamping parts are integrated into the same clamping assembly, which significantly improves the integration level. This not only improves the utilization rate of space, but also allows for rapid switching of different types of clamping parts during the actual production process, thereby ensuring work efficiency.
[0014] (2) In addition, by setting up a lifting component, the height of the shell can be adaptively adjusted according to the height position of different types of clamping parts and the size of the corresponding shell itself, so that the clamping point is adapted to the center of gravity of the shell, thereby ensuring the clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the present invention is described with the following drawings:
[0016] Figure 1 This is a schematic diagram of the overall structure of a fixture used for shell processing in Example 1 of the present utility model;
[0017] Figure 2 for Figure 1 A magnified view of point A1 in the middle;
[0018] Figure 3 This is a partial cross-sectional view of a fixture used for shell processing in Example 1 of the present utility model.
[0019] The following are marked in the accompanying drawings:
[0020] Workbench 1, table top 11, accommodating groove 111, connecting hole 112, limiting hole 113, column 12, clamping assembly 2, support plate 21, side plate 22, first clamping member 23, first clamping block 231, second clamping member 24, second clamping block 241, third clamping member 25, third clamping block 251, connecting plate 26, limiting plate 27, locking member 28, threaded rod 281, nut 282, lifting assembly 3, lifting plate 31, limiting rod 32, limiting ring 33, electric cylinder 34. DETAILED DESCRIPTION
[0021] Example 1, specifically as Figure 1-Figure 3 shown.
[0022] A fixture for shell processing comprises a workbench 1, a clamping assembly 2 located above the workbench 1 for clamping the shell, and a lifting assembly 3 located below the workbench 1 for adjusting the height of the shell.
[0023] like Figure 1 As shown, the workbench 1 includes a plate-shaped table top 11 and a column 12 for supporting the table top 11. The clamping assembly 2 includes two vertical support plates 21 fixedly connected to the table top 11. The support plates 21 are arranged in pairs and are arranged opposite each other. The bottom ends of the support plates 21 are detachably connected to the table top 11 via threads, which facilitates subsequent maintenance and replacement.
[0024] Multiple types of clamping members are spaced apart along the height direction of the support plate 21 from bottom to top. The clamping members on the two support plates 21 correspond to each other. In this embodiment, three types of clamping members are provided on one support plate 21, including a first clamping member 23, a second clamping member 24, and a third clamping member 25. A single clamping member includes multiple clamping blocks spaced apart along the length of the support plate 21. Taking the first clamping member 23 as an example, the first clamping member 23 includes multiple first clamping blocks 231 spaced apart along the length of the support plate 21. The support plate 21 has a through hole. The first clamping block 231 passes through the through hole, with its inner end located inside the support plate 21 and its outer end located outside the support plate 21. Similarly, the second clamping member 24 includes multiple second clamping blocks 241, and the third clamping member 25 includes multiple third clamping blocks 251. The connection relationship between the second clamping blocks 241 and the third clamping blocks 251 and the support plate 21 is the same as the connection relationship between the first clamping block 231 and the support plate 21, which will not be elaborated here.
[0025] In this embodiment, the first clamping blocks 231, the second clamping blocks 241, and the third clamping blocks 251 are identical in number, each comprising seven. The inner end surfaces of the seven first clamping blocks 231 are curved to varying degrees and collectively form a discontinuous curved contact surface. Similarly, the inner end surfaces of the seven second clamping blocks 241 and the seven third clamping blocks 251 also form a discontinuous curved contact surface. The curved contact surface increases the contact area between the clamping blocks and the housing, thereby achieving a snug clamping fit and ensuring clamping stability. This prevents vibration of the housing due to external forces during machining, which could affect machining accuracy.
[0026] It should be particularly emphasized that as the height increases, on the one hand, the curvature corresponding to the arc-shaped contact surfaces respectively formed by the first clamping block 231, the second clamping block 241 and the third clamping block 251 gradually decreases, and on the other hand, the size and spacing of the clamping blocks in different clamping parts increase synchronously to adapt to shells of different diameters.
[0027] like Figure 1 As shown, the outer ends of the first clamping block 231, the second clamping block 241 and the third clamping block 251 are welded with connecting plates 26. The connecting plates 26 connect the multiple clamping blocks on the same horizontal plane and form a whole, which facilitates the synchronous advancement or pulling out of multiple supporting blocks. The length of the connecting plate 26 is greater than the span of the clamping block and both ends of the connecting plate 26 are exposed outside the clamping block. Locking members 28 are provided at both ends of the connecting plate 26, as shown in FIG. Figure 2 As shown, a through hole is opened at the end of the connecting plate 26, and a threaded rod 281 is inserted into the through hole. The threaded rod 281 is perpendicular to the plate surface of the support plate 21 and the end face of the fixed end of the threaded rod 281 is welded and fixed to the outer plate surface of the support plate 21. The free end of the threaded rod 281 is exposed to the outside of the connecting plate 26 and a nut 282 is threadedly connected to the free end. The nut 282 is located on the outside of the connecting plate 26.
[0028] The upper surface of the table 11 is provided with a circular receiving groove 111, which is located at the center between the clamping components 2 on both sides. Figure 1 、 Figure 3 As shown, the lifting assembly 3 includes a lifting plate 31 whose shape and size match the receiving groove 111, and an electric cylinder 34 located directly below the lifting plate 31. The electric cylinder 34 is fixed to the lower surface of the table 11 by a threaded connection. A connecting hole 112 is formed at the center of the bottom of the receiving groove 111. The output shaft of the electric cylinder 34 passes through the connecting hole 112 and is fixedly connected to the bottom surface of the lifting plate 31. The connection method can be threaded or welded. In this embodiment, threaded connection is preferred.
[0029] When in use, first, place the shell on the lifting plate 31, and select a certain type of clamping piece that is compatible with it according to the size of the shell. When the height of the shell needs to be adjusted to ensure that the clamping point is adapted to the center of gravity of the shell, turn on the electric cylinder 34 to push the lifting plate 31 and the shell up or down; then, push the connecting plate 26 to make the clamping pieces on both sides move inward. The power source required for pushing is manpower or mechanical equipment such as cylinders. The clamping pieces on both sides move relative to each other until the inner end face of the clamping block is fit and pressed against the side of the shell, thereby forming a positioning clamp; finally, by tightening the nut 282 so that the nut 282 is against the outer side of the connecting plate 26, the connecting plate 26 and the clamping piece are limited, so that the clamping piece can continue to clamp the shell.
[0030] By providing multiple types of clamps, it is possible to adapt to shells of different diameters, and by integrating multiple types of clamps into the same clamping assembly, the integration level is significantly improved. This not only improves space utilization, but also allows for quick switching between different types of clamps during actual production, thereby ensuring work efficiency. In addition, by providing a lifting assembly, the height of the shell can be adaptively adjusted according to the height position of different types of clamps and the size of the corresponding shell itself, so that the clamping point is adapted to the center of gravity of the shell, thereby ensuring the clamping effect.
[0031] like Figure 1 As shown, side panels 22 of the same height as the support panel 21 are provided on both sides of the support panel 21. The side panels 22 are fixedly connected to the tabletop 11 by threads. The side panels 22 are welded to the inner panel surface and the side surface of the support panel 21. In this embodiment, the outer side surface of the side panel 22 is flush with the outer surface of the support panel 21. A plurality of rectangular limiting plates 27 are provided between the side panels 22 at intervals along the height direction. The limiting plates 27 correspond to the clamping members one by one. In this embodiment, there are three limiting plates 27. The clamping block penetrates the limiting plates 27 and is slidably connected to the limiting plates 27. The cross-sectional dimensions of the through-holes on the limiting plates 27 are consistent with the cross-sectional dimensions of the clamping block. The limiting plates 27 can provide support and limiting effects on the clamping block, preventing the clamping block from swinging and bending during use.
[0032] The bottom of the receiving groove 111 is provided with a plurality of evenly spaced limiting holes 113 along the circumference. The limiting holes 113 are located around the connecting hole 112. In this embodiment, there are four limiting holes 113. A limiting rod 32 is slidably connected within the limiting holes 113. The upper end of the limiting rod 32 is welded to the lower surface of the lifting plate 31, and the lower end of the limiting rod 32 is welded to a limiting ring 33, which forms a whole with the limiting rod 32. The provision of the limiting rod 32 and the limiting ring 33 can, on the one hand, further enhance the stability of the lifting plate 31 during its ascent and descent. On the other hand, when the lifting plate 31 is stabilized at a certain height, the horizontal stability of the lifting plate 31 can be further enhanced, effectively preventing the lifting plate 31 from deflecting.
[0033] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the present invention.
Claims
1. A fixture for shell processing, characterized in that: It includes a workbench, a clamping assembly located above the workbench for clamping the shell, and a lifting assembly located below the workbench for adjusting the height of the shell. The workbench includes a table top. The clamping assembly includes a support plate fixedly connected to the table top. There are two support plates and they are arranged opposite to each other. Various types of clamping parts are arranged on the support plates. A single clamping part includes multiple clamping blocks. The inner end faces of the multiple clamping blocks are arc surfaces of different degrees and together constitute a discontinuous arc-shaped contact surface. As the height increases, the curvature corresponding to the arc-shaped contact surface formed by the clamping blocks in different clamping parts gradually decreases, and the size and spacing of the clamping blocks in different clamping parts increase synchronously.
2. The fixture for shell processing according to claim 1, characterized in that: A through hole is opened on the support plate, and the clamping block passes through the through hole, with the inner end thereof being located on the inner side of the support plate and the outer end thereof being located on the outer side of the support plate.
3. The fixture for shell processing according to claim 2, characterized in that: The outer end of the clamping block is fixedly connected with a connecting plate, and multiple clamping blocks on the same horizontal plane are connected through the connecting plate to form a whole, which facilitates the synchronous advancement or pulling out of multiple clamping blocks.
4. The fixture for shell processing according to claim 3, characterized in that: The length of the connecting plate is greater than the span of the clamping block and both ends of the connecting plate are exposed outside the clamping block. Locking parts are provided at both ends of the connecting plate. A through hole is opened at the end of the connecting plate, and a threaded rod is inserted into the through hole. The threaded rod is perpendicular to the plate surface of the support plate and the end face of the fixed end of the threaded rod is fixedly connected to the outer plate surface of the support plate. The free end of the threaded rod is exposed outside the connecting plate and a nut is threaded on the free end. The nut is located on the outside of the connecting plate.
5. The fixture for shell processing according to claim 4, characterized in that: A receiving groove is provided on the upper surface of the table, which is located at the center between the clamping components on both sides. The lifting component includes a lifting plate that is adapted to the shape and size of the receiving groove and an electric cylinder located directly below the lifting plate. A connecting hole is provided at the center of the bottom of the receiving groove, and the output shaft of the electric cylinder passes through the connecting hole and is fixedly connected to the bottom surface of the lifting plate.
6. The fixture for shell processing according to claim 5, characterized in that: Side plates are provided on both sides of the support plate, and a plurality of limit plates are provided between the side plates at intervals along the height direction. The limit plates correspond to the clamping members one by one, and the clamping blocks penetrate the limit plates and are slidably connected to the limit plates.