Composite universal clamping device

Abstract

The utility model relates to a compound type universal clamping device, which comprises a leaning positioning plate and a movable clamp, the movable clamp comprises a track, the top surface of the track is provided with a groove, a rack is horizontally arranged in the groove, and a wedge block clamping part is arranged above the track in a sliding manner; the wedge block clamping part comprises a lower inclined wedge pressing block, the lower inclined wedge pressing block is arranged above the rail in a sliding mode, a small rack is arranged in a sliding groove in the bottom of the lower inclined wedge pressing block in a sliding mode and can be meshed with a rack above the rail, and a rack positioning screw is arranged in the position, corresponding to the top of the small rack, of the lower inclined wedge pressing block in a penetrating mode; the inclined face of the lower inclined wedge pressing block is connected with an upper inclined wedge pressing block through an adjusting screw. According to the clamping device, the leaning fixing plate is matched with the movable clamp, so that the clamping distance can be flexibly adjusted, the clamping device is suitable for clamping structural parts of different types and different specifications, the simple structural design is adopted, the clamping efficiency is high, the applicability is high, the machining efficiency can be remarkably improved, and the machining cost can be remarkably reduced.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining technology, specifically to a composite universal clamping device. Background Technology

[0002] With the increasing complexity and diversity of market demands, the need for small-batch, multi-category, and multi-specification components is growing. For example, 3C electronics, medical, and aerospace components are characterized by small batches and a wide variety of products. Even within the same category of components, there are variations in shape, size, and dimensions. Aircraft components, such as slide rails, are a common example. Faced with this market environment, processing companies inevitably encounter the challenge of reducing costs and increasing efficiency. Improving the adaptability and processing efficiency of machining centers is key to reducing processing costs, making it a crucial research focus for these companies.

[0003] In terms of clamping tools, most machining centers currently use a set of clamping tools to process a single type or class of parts. The clamping tools have low versatility. Different types or specifications of parts require corresponding clamping tools, which inevitably increases tooling costs. Moreover, the clamping tools need to be changed frequently when processing different parts, resulting in low clamping efficiency and affecting the overall machining benefits.

[0004] Therefore, there is an urgent need to develop a set of clamping tools that can adapt to the processing of multiple categories and specifications of parts, in order to meet the diverse product processing needs of the market, improve processing efficiency, and reduce processing costs. Utility Model Content

[0005] This utility model provides a composite universal clamping device.

[0006] The specific technical solution of this utility model is as follows: a composite universal clamping device, including a mounting positioning plate and a movable clamp, the movable clamp including a track, a groove being formed on the top surface of the track, a rack being horizontally arranged in the groove, and a wedge clamping part being slidably arranged above the track; the wedge clamping part including a lower inclined wedge pressing block, the lower inclined wedge pressing block being slidably arranged above the track, a small rack being slidably arranged in the bottom groove of the lower inclined wedge pressing block, the small rack being able to mesh with the rack above the track, a rack positioning screw being provided through the lower inclined wedge pressing block corresponding to the top of the small rack, and an upper inclined wedge pressing block being connected to the inclined surface of the lower inclined wedge pressing block by an adjusting screw.

[0007] Furthermore, preferably, a spring is fitted onto the outer surface of the adjusting screw.

[0008] Furthermore, preferably, the opposing surfaces of the mounting positioning plate and the upper inclined wedge pressing block acting on the workpiece are flexible sawtooth shapes.

[0009] Furthermore, preferably, the two ends of the rack are connected to the base plate of the track by screws.

[0010] Furthermore, preferably, both the mounting positioning plate and the track base plate have multiple screws running through them for connecting the worktable.

[0011] Furthermore, preferably, a positioning groove is provided laterally at the bottom of the track, and a track positioning key is installed in the positioning groove.

[0012] Furthermore, preferably, it also includes several columns of equal height for supporting the workpiece.

[0013] Furthermore, preferably, the equal-height columns are symmetrically arranged on both sides of the track.

[0014] The present invention provides a composite universal clamping device, which includes at least a mounting positioning plate and a movable clamp as described above.

[0015] Furthermore, preferably, it includes a mounting positioning plate and two movable clamps, and the two movable clamps are arranged on the same side or both sides of the mounting positioning plate; when both sides are arranged, both sides of the mounting positioning plate are flexible sawtooth shapes.

[0016] The beneficial effects of this utility model are as follows: This clamping device can flexibly adjust the clamping distance by cooperating with the fixed plate and the moving fixture, adapting to the clamping of different types and specifications of structural parts. Its simple and convenient structural design allows for easy movement and fixation of the wedge clamping part through the combination of the track and the rack. Adjusting the rack positioning screw and the adjusting screw can quickly achieve the clamping and loosening of the workpiece. It not only has high clamping efficiency and strong applicability, but also can achieve the effect of clamping multiple parts at once by changing the number and combination of the fixed plate and the moving fixture, which is conducive to batch clamping production. It has obvious advantages for complex and diverse processing needs, and can significantly improve processing efficiency and reduce processing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a composite universal clamping device according to Embodiment 1. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a composite universal clamping device according to Embodiment 1. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the structure of a composite universal clamping device according to Embodiment 1. Figure 3 ;

[0020] Figure 4 This is a schematic diagram of the moving fixture in Example 1;

[0021] Figure 5This is a top view of the moving fixture;

[0022] Figure 6 AA section view of the moving fixture;

[0023] Figure 7 This is a schematic diagram of the track structure;

[0024] Figure 8 This is a top view of the track;

[0025] Figure 9 A schematic diagram of the track positioning key;

[0026] Figure 10 This is a top view of the rack;

[0027] Figure 11 This is a cross-sectional view of the rack (AA section).

[0028] Figure 12 This is an exploded structural diagram of the wedge clamping part;

[0029] Figure 13 This is a schematic diagram of the working state structure of Example 1;

[0030] Figure 14 This is a schematic diagram of the working state structure of Example 2. Figure 1 ;

[0031] Figure 15 This is a schematic diagram of the working state structure of Example 2. Figure 2 ;

[0032] Figure 16 This is a schematic diagram of the working state structure of Example 3;

[0033] In the diagram: 1-Mount positioning plate; 2-Moving fixture; 3-Rail; 31-Groove; 32-Positioning groove; 33-Rail positioning key; 4-Rack; 5-Wedge clamping part; 51-Lower inclined wedge pressure block; 52-Upper inclined wedge pressure block; 53-Small rack; 54-Rack positioning screw; 55-Adjusting screw; 56-Spring; 6-Equal height column; 7-Workpiece; 8-Worktable. Detailed Implementation

[0034] To make the technical problems and solutions solved by this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0035] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 this utility model.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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. Example 1

[0037] like Figures 1 to 3 As shown, this embodiment provides a composite universal clamping device, including a mounting positioning plate 1 and a movable clamp 2. As... Figures 4 to 8 As shown, the movable clamp 2 includes a track 3, a groove 31 is provided on the top surface of the track 3, a rack 4 is horizontally provided in the groove 31, and a wedge clamping part 5 is slidably provided above the track 3. The wedge clamping part 5 can slide along the track 3 to approach or move away from the mounting positioning plate 1, thereby realizing the clamping of workpieces 7 of different types and specifications.

[0038] like Figure 6 Figure 11 As shown, the wedge clamping part 5 includes a lower inclined wedge pressing block 51, which is slidably disposed above the track 3. A small rack 53 is slidably disposed in the bottom groove of the lower inclined wedge pressing block 51. The small rack 53 can mesh with the rack 4 above the track 3. A rack positioning screw 54 is disposed through the lower inclined wedge pressing block 51 corresponding to the top of the small rack 53. When the rack positioning screw 54 is tightened, the rack positioning screw 54 will push the small rack 53 downward to mesh with the rack 4, thereby completing the fixation of the lower inclined wedge pressing block 51. An upper inclined wedge pressing block 52 is connected to the inclined surface of the lower inclined wedge pressing block 51 by an adjusting screw 55. After the lower inclined wedge pressing block 51 is fixed, the adjusting screw 55 is tightened. The downward movement of the adjusting screw 55 will drive the upper inclined wedge pressing block 52 to slide downward along the inclined surface of the lower inclined wedge pressing block 51, thereby clamping the workpiece 7.

[0039] Preferably, a spring 56 is fitted onto the outer surface of the adjusting screw 55, and a washer is provided between the adjusting screw 55 and the top surface of the upper inclined wedge block 52 to limit the movement of the spring 56. The spring 56 facilitates the reset of the upper inclined wedge block 52. When switching from a clamped state to a loosened state, the adjusting screw 55 is turned in the opposite direction. Under the reset force of the spring 56, the upper inclined wedge block 52 slides upward along the inclined surface while being loosened, releasing the clamping of the workpiece 7 and finally resetting. The automatic springback reset of the upper inclined wedge block driven by the spring replaces the cumbersome manual pulling, further improving the convenience of clamping.

[0040] Preferably, the opposing surfaces of the aforementioned mounting positioning plate 1 and the upper inclined wedge pressure block 52 acting on the workpiece are flexible sawtooth-shaped. Such flexible sawtooth-shaped pressing surfaces can match the surface curvature of slide rail-type parts, allowing the clamping device to better fit the workpiece surface, thereby providing a more uniform clamping force, improving clamping stability, and reducing workpiece deformation caused by uneven force.

[0041] Preferably, the bottom of the track 3 is provided with a horizontal positioning groove 32, and a track positioning key 33 is installed in the positioning groove 32 to improve the installation stability of the track 3.

[0042] Preferably, the clamping device further includes several level posts 6 for supporting the workpiece. The specific number and position of the level posts 6 can be rationally configured according to the workpiece support requirements, with the principle of stable workpiece support. Of course, the placement of the level posts 6 can also be as follows... Figure 1 As shown, the two sides of track 3 are symmetrically arranged, or as shown in the figure. Figure 2 As shown, it is positioned between the two moving clamps 2 on the left and right.

[0043] The connection details of the above components are as follows:

[0044] like Figure 1 Figure 8 As shown, multiple screw holes are provided on the mounting positioning plate 1 and the bottom plate of the track 3. After screws are inserted through the screw holes, they can be easily connected and fixed to the worktable 8.

[0045] like Figure 3 Figure 8 Figure 9 As shown, a screw hole is provided at the center of the base plate of track 3, which corresponds to the screw hole at the center of track positioning key 33. The two parts can be connected together by passing through the screw. In addition, there are two small screw holes on track positioning key 33. By passing through the screw, it can be further secured in the positioning groove 32 of track 3.

[0046] like Figure 8 Figure 10 Figure 11As shown, the bottom plate of track 3 has screw holes at both ends, which correspond to the screw holes at both ends of rack 4. The two parts can be connected together by passing screws through them.

[0047] like Figures 1 to 3 As shown, a screw for connecting the worktable 8 passes through the center of the contour column.

[0048] like Figure 12 As shown, the top and side surfaces of the lower inclined wedge block 51 are provided with screw holes, and the bottom is an L-shaped groove opening. The small rack 53 is slidably disposed in the L-shaped groove, and the rack positioning screw 54 is screwed into the screw hole on the top surface. The top surface of the upper inclined wedge block 52 can also be provided with screw holes. The adjusting screw 55 is screwed into the screw hole on the top surface of the upper inclined wedge block 52 and the screw hole on the top surface of the lower inclined wedge block 51 in sequence, thereby connecting the upper inclined wedge block 52 to the inclined surface of the lower inclined wedge block 51.

[0049] The clamping device provided in this embodiment includes a mounting positioning plate 1 and a movable clamp 2 of the above-described structure, and its working state is as follows: Figure 13 As shown. In use, the mounting positioning plate 1 and the track 3 are installed on the worktable 8. The equal-height column 6 is installed on the worktable 8 according to the size of the workpiece 7. Then, the assembled wedge clamping part 5 is slidably installed on the track 3. The workpiece 7 is placed between the mounting positioning plate 1 and the wedge clamping part 5. The wedge clamping part 5 is slid until the upper inclined wedge pressure block 52 presses against the workpiece 7. The rack positioning screw 54 is tightened, and the small rack 53 is pressed down to move and mesh with the rack 4, thus completing the fixing of the lower inclined wedge pressure block 51. Then, the adjusting screw 55 is tightened, which drives the upper inclined wedge pressure block 52 to slide down along the inclined surface of the lower inclined wedge pressure block 51 to clamp the workpiece 7, and the workpiece 7 can then be processed.

[0050] After the workpiece 7 is processed, loosen the adjusting screw 55 in the reverse direction. Under the reset force of the spring 56, the upper inclined wedge block 52 slides upward along the inclined plane while being loosened, releasing the clamping of the workpiece 7 and finally resetting. Then loosen the rack positioning screw 54 to release the pressure of the rack positioning screw 54 on the small rack 53. The engagement state between the small rack 53 and the rack 4 is released, and the wedge clamping part 5 can slide along the track 3 away from the mounting positioning plate 1, completely releasing the clamping of the workpiece 7, and the workpiece 7 can be removed.

[0051] This clamping device allows for flexible adjustment of the clamping distance through the cooperation of the fixed plate and the moving fixture. It is suitable for clamping different types and specifications of structural parts. Its simple and convenient structural design allows for easy movement and fixation of the wedge clamping part through the combination of the track and the rack. The workpiece can be quickly clamped and released by adjusting the rack positioning screw and the adjusting screw. It has high clamping efficiency and strong applicability. Example 2

[0052] The difference between this embodiment and the previous embodiment is that the clamping device provided in this embodiment includes a mounting positioning plate 1 and two movable clamps 2 of the above structure. The specific configuration is as follows:

[0053] like Figure 14 As shown, two movable clamps 2 are set on the same side of the mounting positioning plate 1. The two movable clamps 2 and the mounting positioning plate 1 clamp a workpiece 7 at the same time. This design is suitable for clamping workpieces 7 with larger dimensions.

[0054] like Figure 15 As shown, two movable clamps 2 are set on both sides of the mounting positioning plate 1. The mounting positioning plate 1 and the movable clamps 2 on both sides can clamp two workpieces 7 at the same time, which is beneficial to improving processing efficiency. Example 3

[0055] The difference between this embodiment and the previous embodiment is that the clamping device provided in this embodiment includes a mounting positioning plate 1 and four movable clamps 2 of the above structure. Specific configuration is as follows: Figure 16 As shown, four movable clamps 2 are symmetrically arranged on both sides of the mounting positioning plate 1. The mounting positioning plate 1 and the movable clamps 2 on both sides can clamp four workpieces 7 at the same time, further improving processing efficiency.

[0056] It should also be noted that the number and combination of the mounting positioning plate and the moving fixture of the clamping device are not limited to the situation described in the above embodiments. In actual use, they can be reasonably configured and combined according to processing needs, worktable size, etc., to achieve multiple parts processing at one time and improve processing efficiency.

[0057] The present invention has been described in detail above through specific and preferred embodiments. However, those skilled in the art should understand that the present invention is not limited to the embodiments described above. Any modifications or equivalent substitutions made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A composite universal clamping device, characterized in that: The device includes a mounting positioning plate (1) and a moving clamp (2). The moving clamp (2) includes a track (3). The top surface of the track (3) has a groove (31). A rack (4) is horizontally arranged in the groove (31). A wedge clamping part (5) is slidably arranged above the track (3). The wedge clamping part (5) includes a lower inclined wedge pressing block (51). The lower inclined wedge pressing block (51) is slidably arranged above the track (3). A small rack (53) is slidably arranged in the bottom groove of the lower inclined wedge pressing block (51). The small rack (53) can mesh with the rack (4) above the track (3). A rack positioning screw (54) is provided through the lower inclined wedge pressing block (51) corresponding to the top of the small rack (53). An upper inclined wedge pressing block (52) is connected to the inclined surface of the lower inclined wedge pressing block (51) by an adjusting screw (55).

2. The composite universal clamping device according to claim 1, characterized in that: A spring (56) is fitted onto the outer surface of the adjusting screw (55).

3. A composite universal clamping device according to claim 1 or 2, characterized in that: The opposing surfaces of the mounting positioning plate (1) and the upper inclined wedge pressure block (52) acting on the workpiece are flexible sawtooth-shaped.

4. The composite universal clamping device according to claim 3, characterized in that: The rack (4) is connected to the base plate of the track (3) by screws at both ends.

5. The composite universal clamping device according to claim 4, characterized in that: Both the mounting plate (1) and the bottom plate of the track (3) have multiple screws for connecting the worktable.

6. The composite universal clamping device according to claim 5, characterized in that: The bottom of the track (3) is provided with a horizontal positioning groove (32), and a track positioning key (33) is installed in the positioning groove (32).

7. A composite universal clamping device according to any one of claims 4-6, characterized in that: It also includes several equal-height columns (6) for supporting the workpiece.

8. The composite universal clamping device according to claim 7, characterized in that: The contour columns (6) are symmetrically arranged on both sides of the track (3).

9. A composite universal clamping device, characterized in that: It includes at least one mounting positioning plate (1) and one moving clamp (2) as described in any one of claims 1-8 above.

10. A composite universal clamping device according to claim 9, characterized in that: It includes a mounting positioning plate (1) and two movable clamps (2), and the two movable clamps (2) are set on the same side or both sides of the mounting positioning plate (1); when both sides are set, both sides of the mounting positioning plate (1) are flexible sawtooth shapes.

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