Clamp for machining sheet metal workpiece

Abstract

The utility model relates to the technical field of sheet metal clamps, in particular to a clamp for sheet metal workpiece machining, which comprises a base, a clamping block, a clamping plate and a clamping plate. A lifting groove is formed in the surface of the extension frame, a lifting plate is arranged in the lifting groove, a sliding groove is formed in the surface of the lifting plate, and a connecting rod is arranged in the sliding groove; the lower pressing block is arranged at the top of the clamping block; the device has the beneficial effects that a workpiece is placed on the surface of the base, a first screw rod is screwed, so that a clamping block moves at the bottom of the base, a rubber strip abuts against the surface of the workpiece, abutting plates are retracted into the clamping block, the ends of the abutting plates make contact with the surface of the workpiece, and the rubber strip has elasticity; and a second screw rod is screwed, a limiting ring drives a lifting plate to move downwards in a lifting groove, so that a connecting rod moves downwards along with the lifting plate, and in the moving process of a clamping block, the connecting rod can move in a sliding groove, and the connecting rod drives a downward pressing block to move downwards.

Description

Technical Field

[0001] The utility model relates to the field of sheet metal fixtures, in particular to a fixture for processing sheet metal workpieces. Background Art

[0002] Sheet metal has not yet had a relatively complete definition, it can be defined as: Sheet metal is a comprehensive cold processing technology for metal sheets, including shearing, punching, cutting, compounding, folding, welding, riveting, splicing, forming, etc.

[0003] However, when a circular sheet metal workpiece is currently clamped using a fixture, it is necessary to replace the clamping component that adapts to the arc of the workpiece, which slows down work efficiency. If the clamping component that adapts to the arc of the workpiece is not used, the workpiece will be deformed due to the clamping. Utility Model Content

[0004] The purpose of the present utility model is to provide a clamp for processing sheet metal workpieces to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A clamp for processing sheet metal workpieces, comprising: a base, a clamping block is provided on the top of the base;

[0006] An extension frame, wherein a lifting slot is provided on the surface of the extension frame, a lifting plate is provided in the lifting slot, a sliding slot is provided on the surface of the lifting plate, and a connecting rod is provided in the sliding slot;

[0007] The pressing block is arranged on the top of the clamping block.

[0008] Preferably, the clamping blocks are provided in two groups, one group of clamping blocks has a slider at the bottom, a slide groove is provided at the top of the base, the slider is located in the slide groove, and the other group of clamping blocks is fixed to the surface of the base.

[0009] Preferably, a limiting rod is inserted into the end of the clamping block, a first screw is inserted into the end of the clamping block, the first screw is screwed to the surface of the base, and a pressing block is inserted into the top of the clamping block, which can be raised and lowered inside the clamping block.

[0010] Preferably, a top holding plate is inserted into the surface of the clamping block, a spring is provided at one end of the top holding plate located inside the clamping block, a rack is fixed on the surface of the top holding plate, and a rubber strip is provided at the end of the top holding plate.

[0011] Preferably, a rack is provided at the bottom of the lower pressing block, and the lower pressing block is supported on the surface of the supporting plate after moving downward.

[0012] Preferably, the end of the connecting rod is fixed to the surface of the lower pressure block, and the connecting rod can move in the slide groove. The bottom of the base is screwed with a second screw rod, and the surface of the second screw rod is provided with a limiting ring. There are two groups of limiting rings, which are located at the top and bottom of the lifting plate. The lifting plate can be lifted and lowered in the lifting groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model proposes that the workpiece is placed on the surface of the base, and the first screw is screwed so that the clamping block moves on the bottom of the base, and the rubber strip is held on the surface of the workpiece, so that the top holding plate is retracted into the inside of the clamping block, and the ends of multiple groups of top holding plates are in contact with the surface of the workpiece, and the rubber strip is elastic, so that the ends of multiple groups of top holding plates fit the surface of the workpiece, and the second screw is screwed to drive the lifting plate to move down in the lifting groove through the limit ring, so that the connecting rod moves down with the lifting plate, and during the movement of the clamping block, the connecting rod can move in the slide groove, and the connecting rod drives the lower pressing block to move down, and the lower pressing block is held on the surface of the top holding plate, and a rack is provided at the bottom of the lower pressing block, and the rack at the bottom of the lower pressing block is stuck in the rack on the surface of the top holding plate to stabilize the position of the top holding plate, and continue to screw the first screw to clamp the workpiece by moving the top holding plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a structural schematic diagram of another perspective of the utility model;

[0017] Figure 3 for Figure 1 A magnified schematic diagram of the structure in the middle.

[0018] In the figure: base 1, pressing block 2, clamping block 3, limiting rod 4, first screw 5, connecting rod 6, slide 7, extension frame 8, second screw 9, limiting ring 10, top holding plate 11, rack 12, rubber strip 13, lifting plate 14, lifting slot 15. DETAILED DESCRIPTION

[0019] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 3The utility model provides a technical solution: a clamp for processing sheet metal workpieces, comprising: a clamping block 3 is provided on the top of the base 1, and the clamping block 3 is provided with two groups, a slider is provided at the bottom of one group of clamping blocks 3, a slide groove is provided at the top of the base 1, and the slider is located in the slide groove, and the other group of clamping blocks 3 is fixed to the surface of the base 1, and a top holding plate 11 is plugged into the surface of the clamping block 3, and a spring is provided at one end of the top holding plate 11 located inside the clamping block 3, and the spring is located inside the clamping block 3, and a rack 12 is fixed to the surface of the top holding plate 11, and a rubber strip 13 is provided at the end of the top holding plate 11, and the lower pressing block 2 is held on the surface of the top holding plate 11, and a rack 12 is provided at the bottom of the lower pressing block 2, and the rack 12 at the bottom of the lower pressing block 2 is stuck in the rack 12 on the surface of the top holding plate 11, so as to stabilize the position of the top holding plate 11;

[0021] A lifting groove 15 is provided on the surface of the extension frame 8, and a lifting plate 14 is provided in the lifting groove 15. A slide groove 7 is provided on the surface of the lifting plate 14, and a connecting rod 6 is provided in the slide groove 7. The end of the connecting rod 6 is fixed to the surface of the lower pressing block 2, and the connecting rod 6 can move in the slide groove 7. A second screw rod 9 is screwed to the bottom of the base 1, and a limit ring 10 is provided on the surface of the second screw rod 9. The limit ring 10 is provided with two groups, which are located at the top and bottom of the lifting plate 14. The lifting plate 14 can be lifted and lowered in the lifting groove 15. The second screw rod 9 is screwed to drive the lifting plate 14 to move downward in the lifting groove 15 through the limit ring 10, so that the connecting rod 6 moves downward with the lifting plate 14.

[0022] The pressing block 2 is arranged at the top of the clamping block 3, and the end of the clamping block 3 is connected with a limiting rod 4, and the end of the clamping block 3 is connected with a first screw 5, and the first screw 5 is screwed to the surface of the base 1. The top of the clamping block 3 is connected with the pressing block 2, and the pressing block 2 can be raised and lowered inside the clamping block 3. A rack 12 is provided at the bottom of the pressing block 2. After the pressing block 2 moves down, it is supported on the surface of the supporting plate 11.

[0023] When the workpiece is placed on the surface of the base 1, the first screw 5 is screwed, so that the clamping block 3 moves at the bottom of the base 1, and the rubber strip 13 is supported on the surface of the workpiece, so that the top holding plate 11 is retracted into the inside of the clamping block 3. The ends of the multiple groups of top holding plates 11 are in contact with the surface of the workpiece, and the rubber strip 13 is elastic, so that the ends of the multiple groups of top holding plates 11 are in contact with the surface of the workpiece. The second screw 9 is screwed, and the lifting plate 14 is driven to move down in the lifting groove 15 through the limit ring 10, so that the connecting rod 6 moves down with the lifting plate 14, and during the movement of the clamping block 3, the connecting rod 6 can move in the slide groove 7, and the connecting rod 6 drives the lower pressing block 2 to move down. The lower pressing block 2 is supported on the surface of the top holding plate 11, and the bottom of the lower pressing block 2 is provided with a rack 12. The rack 12 at the bottom of the lower pressing block 2 is stuck in the rack 12 on the surface of the top holding plate 11, stabilizing the position of the top holding plate 11, and continuing to screw the first screw 5, the workpiece is clamped by moving the top holding plate 11.

[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for processing sheet metal workpieces, characterized by: include: A base (1), wherein a clamping block (3) is provided on the top of the base (1); An extension frame (8), a lifting groove (15) is provided on the surface of the extension frame (8), a lifting plate (14) is provided in the lifting groove (15), a sliding groove (7) is provided on the surface of the lifting plate (14), and a connecting rod (6) is provided in the sliding groove (7); The pressing block (2) is arranged on the top of the clamping block (3).

2. A fixture for processing sheet metal workpieces according to claim 1, characterized in that: The clamping blocks (3) are provided in two groups. The bottom of one group of clamping blocks (3) is provided with a slider, the top of the base (1) is provided with a slide groove, and the slider is located in the slide groove. The other group of clamping blocks (3) is fixed on the surface of the base (1).

3. A fixture for processing sheet metal workpieces according to claim 2, characterized in that: The end of the clamping block (3) is plugged with a limiting rod (4), the end of the clamping block (3) is plugged with a first screw (5), the first screw (5) is screwed to the surface of the base (1), and the top of the clamping block (3) is plugged with a lower pressing block (2), which can be raised and lowered inside the clamping block (3).

4. A fixture for processing sheet metal workpieces according to claim 3, characterized in that: A top holding plate (11) is inserted into the surface of the clamping block (3), a spring is provided at one end of the top holding plate (11) located inside the clamping block (3), the spring is located inside the clamping block (3), a rack (12) is fixed on the surface of the top holding plate (11), and a rubber strip (13) is provided at the end of the top holding plate (11).

5. The fixture for processing sheet metal workpieces according to claim 4, characterized in that: A rack (12) is provided at the bottom of the lower pressing block (2), and the lower pressing block (2) is supported on the surface of the supporting plate (11) after moving downward.

6. The fixture for processing sheet metal workpieces according to claim 5, characterized in that: The end of the connecting rod (6) is fixed to the surface of the lower pressing block (2), and the connecting rod (6) can move in the sliding groove (7). The bottom of the base (1) is screwed with a second screw rod (9), and the surface of the second screw rod (9) is provided with a limiting ring (10). The limiting ring (10) is provided with two groups and is located at the top and bottom of the lifting plate (14). The lifting plate (14) can be raised and lowered in the lifting groove (15).

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