Special-shaped multi-workpiece clamp

Abstract

The utility model discloses a special-shaped multiworkpiece clamp, including the substrate, the upper surface of substrate is equipped with the recess that is circular, and three groups of installation groove for clamping special-shaped workpiece, three groups of installation groove are with the center of the circle of recess as the center circumferential array, and three groups of installation groove are linked together with the recess, and installation groove includes the first installation groove for placing special-shaped workpiece and the second installation groove for placing the pressing block, and the first installation groove and the second installation groove are linked together, and the pressing block is fixed in the first installation groove through the abutment special-shaped workpiece and second installation groove groove wall of its both sides respectively to special-shaped workpiece, in the utility model, installation groove is provided with three groups, can carry out clamping fixation to three groups of special-shaped workpiece simultaneously, thereby facilitating vertical machining center to process three groups of special-shaped workpiece simultaneously, and the processing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, and more specifically, to a fixture for irregularly shaped multi-workpieces. Background Technology

[0002] In the process of machining mechanical products, some irregularly shaped parts are inevitably produced. These irregularly shaped parts are collectively referred to as irregularly shaped workpieces.

[0003] However, existing fixtures generally use symmetrically arranged clamping plates to clamp workpieces symmetrically. Irregularly shaped workpieces, due to their inherent asymmetry, are difficult to clamp and fix using existing fixtures. In the prior art, Chinese utility model publication CN222570501U discloses a fixture for processing irregularly shaped workpieces, including a fixture base. The upper surface of the fixture base has symmetrically formed mounting grooves around its perimeter. A rotating shaft is rotatably mounted within these grooves, extending horizontally beyond the upper surface of the fixture base. An adjustment groove is formed on the rotating shaft, and a clamping plate is slidably mounted on the adjustment groove. A screw is rotatably mounted within the adjustment groove, its thread penetrating the clamping plate. A handle is fixed to the bottom of the end of the rotating shaft furthest from the fixture base. A movable plate is elastically mounted on the side of the handle, and an abutment piece is fixed to the top of the movable plate. This fixture can fix the rotating shaft at various angles to the edge of the fixture base, thereby securing the irregularly shaped workpiece to the upper surface of the fixture base.

[0004] The above-mentioned fixture can only hold and fix one irregularly shaped workpiece when in use, resulting in low processing efficiency.

[0005] Therefore, a new solution is needed to address the above problems. Utility Model Content

[0006] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a fixture for irregularly shaped multi-workpieces.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A multi-workpiece fixture with irregular shapes includes a base plate. The upper surface of the base plate has a circular groove and three sets of mounting slots for clamping irregular-shaped workpieces. The three sets of mounting slots are arranged circumferentially around the center of the groove and are connected to the groove. Each mounting slot includes a first mounting slot for placing irregular-shaped workpieces and a second mounting slot for placing pressure blocks. The first and second mounting slots are connected. The pressure blocks fix the irregular-shaped workpieces in the first mounting slot by abutting against the walls of the second and second mounting slots on their respective sides.

[0009] Furthermore, the irregularly shaped workpiece has a triangular structure, and the two sides of the pressure block abut against one side of the irregularly shaped workpiece and the groove wall of the second mounting groove, respectively.

[0010] Furthermore, the first mounting groove is provided with a first positioning groove and a second positioning groove that are adapted to the two end corners of the irregular workpiece.

[0011] Furthermore, the pressure block has an inverted trapezoidal structure, one side of the pressure block used to abut against one side of the irregular workpiece is a flat surface, and the side of the pressure block used to abut against the wall of the second mounting groove is a downward and inward inclined surface.

[0012] Furthermore, mounting holes are provided at both ends of the pressure block, and screw holes are provided at the bottom of the second mounting groove corresponding to the mounting hole positions. Screws are provided in the mounting holes, and the pressure block is driven to move down and be fixed by the threaded connection between the screws and the screw holes.

[0013] Furthermore, the length of the pressure block is less than the length of the second mounting groove.

[0014] The beneficial effects of this utility model are:

[0015] 1. In this utility model, the mounting slot is provided in three sets, which can clamp and fix three sets of irregular workpieces at the same time, thereby facilitating the vertical machining center to process three sets of irregular workpieces at the same time and improving the processing efficiency.

[0016] 2. In this utility model, the screw, mounting hole and screw hole are used in combination. On the one hand, the pressure block can be fixed in the second mounting groove. On the other hand, during the process of screw thread connection to screw hole, as the screw continues to extend into the screw hole, the pressure block is driven to move down by the screw, so that the two sides of the pressure block effectively abut against the irregular workpiece and the groove wall of the second mounting groove, thereby realizing the clamping and fixing of the irregular workpiece.

[0017] 3. The fixture of this utility model has few components and is easy to assemble and disassemble. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a multi-workpiece fixture with irregular shapes in this embodiment;

[0019] Figure 2 This is a schematic diagram of one structure of the substrate in this embodiment;

[0020] Figure 3 This is a schematic diagram of one structure of the pressure block in this embodiment;

[0021] Figure 4 This is a schematic diagram of a structure of an irregularly shaped workpiece in this embodiment;

[0022] Figure 5This is a schematic diagram illustrating the use of the multi-workpiece fixture with irregular shapes in this embodiment;

[0023] Figure 6 For this embodiment, along Figure 5 A schematic diagram of a cross-section cut along line AA.

[0024] Reference numerals: 1. Substrate; 2. Groove; 3. Mounting groove; 4. First mounting groove; 5. Second mounting groove; 6. First positioning groove; 7. Second positioning groove; 8. Screw hole; 9. Pressure block; 10. Mounting hole; 11. Screw; 12. Irregularly shaped workpiece; 13. Arc-shaped protrusion; 14. First protrusion; 15. Second protrusion; 16. Reference numerals: 1. Substrate; 2. Groove; 3. Mounting groove; 4. Mounting hole; 5. Screw; 6. Irregularly shaped workpiece; 7. Arc-shaped protrusion; 8. First protrusion; 9. Second protrusion; 10. Detailed Implementation

[0025] 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 protection scope of the present utility model.

[0026] Example: A multi-workpiece fixture with irregular shapes, such as Figures 1-6 As shown, the system includes a substrate 1. The upper surface of the substrate 1 has a circular groove 2 and three sets of mounting slots 3 for clamping irregularly shaped workpieces 6. The three sets of mounting slots 3 are arranged circumferentially around the center of the groove 2, and are connected to the groove 2. In use, the substrate 1 is mounted on the worktable of a vertical machining center. By creating the circular groove 2 on the substrate 1, the center of the groove 2 facilitates positioning during machining by the vertical machining center. Furthermore, the groove 2 allows for the simultaneous placement of the arc-shaped protrusions 601 at the corners of the three sets of irregularly shaped workpieces 6, saving space and reducing the size of the substrate 1. Preferably, the center of the groove 2 can be marked to facilitate positioning during machining by the vertical machining center.

[0027] Furthermore, such as Figure 1 and Figure 2 As shown, there are three sets of mounting slots 3, each corresponding to one of the three sets of irregularly shaped workpieces 6. Each set of mounting slots 3 includes a first mounting slot 301 for placing the irregularly shaped workpiece 6 and a second mounting slot 302 for placing the pressure block 4. The first mounting slot 301 and the second mounting slot 302 are connected. In use, the irregularly shaped workpiece 6 is first placed in the first mounting slot 301, and the pressure block 4 is placed in the second mounting slot 302. Then, the pressure block 4 is driven to move down. The irregularly shaped workpiece 6 is clamped by the two sides of the pressure block 4 abutting against the walls of the irregularly shaped workpiece 6 and the second mounting slot 302, thus fixing the irregularly shaped workpiece 6 in the first mounting slot 301.

[0028] By setting three sets of mounting slots 3, three sets of irregularly shaped workpieces 6 can be clamped and fixed simultaneously, which facilitates the vertical machining center to process three sets of irregularly shaped workpieces 6 at the same time, thus improving processing efficiency. Of course, during the processing, one or two sets of mounting slots 3 can also be used, but the processing efficiency will be reduced compared to using three sets.

[0029] Furthermore, such as Figure 1 and Figure 4 As shown, the irregularly shaped workpiece 6 has a triangular structure with three end corners. The lower surface of one end corner of the workpiece 6 has a downward-convex arc-shaped protrusion 601. The lower surfaces of the other two end corners of the workpiece 6 have downward-convex first protrusion 602 and second protrusion 603, respectively. The first protrusion 602 and second protrusion 603 have a cylindrical structure. When the irregularly shaped workpiece 6 is installed in the first mounting groove 301, one side of the workpiece 6 faces the pressure block 4, and the other two sides of the workpiece 6 abut against the groove wall of the first mounting groove 301. When the pressure block 4 is installed in the second mounting groove 302, both sides of the pressure block 4 abut against one side of the irregularly shaped workpiece 6 and the groove wall of the second mounting groove 302, respectively.

[0030] Furthermore, such as Figure 1 , Figure 2 and Figure 4 As shown, the first mounting groove 301 has a first positioning groove 303 and a second positioning groove 304. The first positioning groove 303 is adapted to the first protrusion 602 of the irregular workpiece 6, and the second positioning groove 304 is adapted to the second protrusion 603 of the irregular workpiece 6. When the irregular workpiece 6 is installed in the first mounting groove 301, the first protrusion 602 of the irregular workpiece 6 is located in the first positioning groove 303, and the second protrusion 603 of the irregular workpiece 6 is located in the second positioning groove 304. By utilizing the cooperation of the first protrusion 602, the second protrusion 603, the arc-shaped protrusion 601, the first positioning groove 303, the second positioning groove 304, and the groove 2, the irregular workpiece 6 is limited in the first mounting groove 301, thereby facilitating the pressure block 4 to abut and fix the irregular workpiece 6.

[0031] Furthermore, such as Figure 3 As shown, the pressure block 4 has an inverted trapezoidal structure. One side of the pressure block 4 that abuts against one side of the irregularly shaped workpiece 6 is a flat surface, while the other side that abuts against the wall of the second mounting groove 302 is a downwardly and inwardly inclined surface. By making the side of the pressure block 4 that abuts against one side of the irregularly shaped workpiece 6 a flat surface, the contact area between the pressure block 4 and the irregularly shaped workpiece 6 is increased, thereby improving the fixing effect and stability of the irregularly shaped workpiece 6. By making the side of the pressure block 4 that abuts against the wall of the second mounting groove 302 an inclined surface, the pressure block 4 is effectively limited in its position. It should be noted that the side of the second mounting groove 302 that abuts against the inclined surface of the pressure block 4 is also an inclined surface, matching the inclined surface of the pressure block 4.

[0032] Furthermore, mounting holes 401 are provided at both ends of the pressure block 4, and screw holes 305 are provided at the bottom of the second mounting groove 302 corresponding to the positions of the mounting holes 401. Screws 5 are provided in the mounting holes 401, and the screws 5 pass through the mounting holes 401 and are threaded into the screw holes 305. By using the screws 5, mounting holes 401 and screw holes 305 in cooperation, on the one hand, the pressure block 4 can be fixed, so that the pressure block 4 is fixed in the second mounting groove 302. On the other hand, during the process of the screws 5 threading into the screw holes 305, as the screws 5 continue to extend into the screw holes 305, the pressure block 4 is driven to move downward by the screws 5, so that the two sides of the pressure block 4 effectively abut against the irregular workpiece 6 and the groove wall of the second mounting groove 302, thereby realizing the clamping and fixing of the irregular workpiece 6.

[0033] Furthermore, such as Figure 1 and Figure 5 As shown, by setting the length of the pressure block 4 to be less than the length of the second mounting groove 302, it is easier to remove the pressure block 4 from the second mounting groove 302.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A multi-workpiece fixture with irregular shapes, comprising a base plate (1), characterized in that, The upper surface of the substrate (1) is provided with a circular groove (2) and three sets of mounting grooves (3) for clamping irregular workpieces (6). The three sets of mounting grooves (3) are arranged in a circumferential array with the center of the groove (2) as the center, and the three sets of mounting grooves (3) are connected to the groove (2). The mounting groove (3) includes a first mounting groove (301) for placing irregular workpieces (6) and a second mounting groove (302) for placing pressure block (4). The first mounting groove (301) and the second mounting groove (302) are connected. The pressure block (4) fixes the irregular workpiece (6) in the first mounting groove (301) by abutting against the walls of the irregular workpiece (6) and the second mounting groove (302) on its two sides respectively.

2. The irregularly shaped multi-workpiece fixture according to claim 1, characterized in that, The irregular workpiece (6) has a triangular structure, and the two sides of the pressure block (4) abut against one side of the irregular workpiece (6) and the groove wall of the second mounting groove (302).

3. A multi-workpiece fixture with irregular shapes according to claim 2, characterized in that, The first mounting groove (301) has a first positioning groove (303) and a second positioning groove (304) that are adapted to the two end corners of the irregular workpiece (6).

4. A multi-workpiece fixture with irregular shapes according to claim 2, characterized in that, The pressure block (4) has an inverted trapezoidal structure. The pressure block (4) is used to abut against one side of the irregular workpiece (6), which is a flat surface. The side of the pressure block (4) used to abut against the wall of the second mounting groove (302) is a downward and inward inclined surface.

5. A multi-workpiece fixture with irregular shapes according to claim 4, characterized in that, The pressure block (4) has mounting holes (401) at both ends. The bottom of the second mounting groove (302) has a screw hole (305) corresponding to the mounting hole (401). The mounting hole (401) has a screw (5). The screw (5) and the screw hole (305) are connected by threads to drive the pressure block (4) to move down and fix the pressure block (4).

6. A multi-workpiece fixture with irregular shapes according to claim 1, characterized in that, The length of the pressure block (4) is less than the length of the second mounting groove (302).

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