Sheet metal machining clamping device

Abstract

The utility model relates to the technical field of sheet metal working, and discloses a sheet metal working clamping device which comprises a fixed clamping frame, the inner side wall of the fixed clamping frame is connected with an upper movable clamping piece in a sliding mode through an upper guide column connected with the middle of the top in a sliding mode, and the top of the inner side wall of the fixed clamping frame is connected with the upper movable clamping piece through a first spring. Electromagnet strips are embedded in the left and right ends of the bottom of the upper movable clamping piece, and magnet strips opposite to the electromagnet strips in magnetic pole are elastically connected into strip grooves in the left and right ends of the bottom of the inner side wall of the fixed clamping frame through lower guide assemblies and second springs; according to the clamping device for sheet metal machining, the upper movable clamping piece is elastically and slidably connected to the upper portion of the inner side wall of the fixed clamping frame, a workpiece to be machined can be rapidly clamped, the upper movable clamping piece can be attracted to the lower portion through the elastic magnetic attraction assemblies arranged at the two ends of the bottom of the upper movable clamping piece, on the basis of rapid clamping, the workpiece can be clamped more tightly, and the machining efficiency is improved. And loosening is not easy.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal processing, in particular to a sheet metal processing clamping device. Background Art

[0002] Sheet metal is a comprehensive cold processing technology for thin metal plates, including shearing, punching / cutting / combining, folding, welding, riveting, splicing, forming, etc. Its notable feature is that the thickness of the same part is consistent. The product processed by the sheet metal process is called a sheet metal part. During sheet metal processing, the sheet metal plate needs to be clamped, so a clamping device is needed.

[0003] Patent No. CN202322277615.6 discloses a sheet metal processing clamping device. By setting a support rod and a movable rod, cooperating with threaded holes and bolts, the area of ​​the clamping plate can be adjusted so that the clamping force is at different positions of the sheet metal plate, thereby improving the clamping effect of the sheet metal plate. By setting an electric push rod to provide a channel for the rotation of the sheet metal plate, and cooperating with the first motor, the sheet metal plate can be rotated, thereby facilitating the all-round processing of the sheet metal plate.

[0004] The sheet metal processing clamping device disclosed in the above patent is clamped by a first L-shaped clamping plate and a pressure plate threadedly connected to the top of the clamping plate by a threaded rod. Although it can clamp firmly, it is necessary to loosen the bolts one by one each time, and then tighten the bolts after clamping the workpiece, which is very time-consuming and cannot clamp quickly while ensuring firm clamping. Utility Model Content

[0005] The purpose of the utility model is to provide a sheet metal processing clamping device. The sheet metal processing clamping device disclosed in the utility model can quickly clamp the workpiece through an upper movable clamp elastically slidably connected to the upper part of the inner wall of the fixed clamp frame. The upper movable clamp can be adsorbed to the lower part through elastic magnetic suction components arranged at both ends of the bottom of the upper movable clamp. On the basis of rapid clamping, the upper movable clamp can be clamped tighter and not easy to loosen, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sheet metal processing clamping device, comprising a fixed clamping frame, an inner wall of the fixed clamping frame is slidably connected to an upper movable clamp through an upper guide column slidably connected to the middle of the top, the top of the inner wall of the fixed clamping frame and the upper movable clamp are connected by a first spring, and electromagnet bars are embedded and installed on both the left and right ends of the bottom of the upper movable clamp, and magnet bars with opposite magnetic poles to the electromagnet bars are elastically connected in the bar grooves at the left and right ends of the bottom of the inner wall of the fixed clamping frame through a lower guide assembly and a second spring.

[0007] Preferably, there are two fixed clamp frames, and both are installed on the work surface by sliding toward each other through a bidirectional linear displacement drive assembly.

[0008] Preferably, the bidirectional linear displacement drive assembly comprises a bidirectional threaded screw rotatably connected to the inner side wall of the mounting shell, and the power input end of the bidirectional threaded screw is connected to the power output end of the motor.

[0009] Preferably, the left-handed thread and the right-handed thread ends of the bidirectional threaded screw are both threadedly connected with a screw sleeve, and the outer side wall of the screw sleeve is connected with a fixed clamp frame through a bearing and an electric telescopic rod.

[0010] Preferably, the lower guide assembly comprises lower guide columns slidably connected in grooves at left and right ends of the bottom of the inner side wall of the fixed clamp frame, and a magnet bar is fixedly connected to the top of the lower guide column.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The sheet metal processing clamping device disclosed in the utility model can quickly clamp the workpiece to be processed by means of an upper movable clamping piece elastically slidably connected to the upper part of the inner side wall of the fixed clamping frame. The upper movable clamping piece can be adsorbed to the lower part by means of elastic magnetic suction components arranged at both ends of the bottom of the upper movable clamping piece. On the basis of rapid clamping, the clamping is made tighter and not easy to loosen. This solves the problem that the sheet metal processing clamping device disclosed in the above patent is clamped by means of a first L-shaped clamping plate and a pressure plate threadedly connected to the top of the clamping plate by a threaded rod. Although it can clamp firmly, it is necessary to loosen the bolts one by one for each clamping, and then tighten the bolts after clamping the workpiece, which is very time-consuming and cannot achieve rapid clamping while ensuring firm clamping. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 3 for Figure 2 The structural diagram at A in the middle;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model.

[0017] In the figure: 1. fixed clamp frame; 2. upper guide column; 3. first spring; 4. upper movable clamp; 5. electromagnet bar; 6. electric telescopic rod; 7. magnet bar; 8. second spring; 9. lower guide column; 10. mounting shell; 11. motor; 12. bidirectional threaded screw; 13. screw sleeve; 14. bearing. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-Figure 4 The sheet metal processing clamping device shown in the figure comprises a fixed clamping frame 1, an upper guide column 2 slidably connected to the inner wall of the fixed clamping frame 1 through the top middle sliding connection is slidably connected with an upper movable clamping piece 4, the top of the inner wall of the fixed clamping frame 1 and the upper movable clamping piece 4 are connected by a first spring 3, and the left and right ends of the bottom of the upper movable clamping piece 4 are embedded and installed with an electromagnet bar 5, and the left and right ends of the bottom of the inner wall of the fixed clamping frame 1 are elastically connected with a magnet bar 7 with the opposite magnetic pole to the electromagnet bar 5 through a lower guide component and a second spring 8. The sheet metal processing clamping device disclosed in the utility model can quickly clamp the workpiece by the upper movable clamping piece 4 elastically slidably connected to the upper part of the inner wall of the fixed clamping frame 1, and the upper movable clamping piece 4 can be adsorbed to the lower part by the elastic magnetic suction components arranged at the two ends of the bottom of the upper movable clamping piece 4, so that it can be clamped more tightly and not easy to loosen on the basis of rapid clamping.

[0020] Furthermore, there are two fixed clamping frames 1, and both are installed on the workbench by sliding toward each other through a bidirectional linear displacement drive component, which is convenient for clamping; further, the bidirectional linear displacement drive component includes a bidirectional threaded screw 12 rotatably connected to the inner wall of the mounting shell 10, and the power input end of the bidirectional threaded screw 12 is connected to the power output end of the motor 11, which is convenient for driving; further, the left-handed thread and the right-handed thread ends of the bidirectional threaded screw 12 are both threadedly connected with a screw sleeve 13, and the outer wall of the screw sleeve 13 is connected to the fixed clamping frame 1 through a bearing 14 and an electric telescopic rod 6, which is convenient for transmission; further, the lower guide component includes a lower guide column 9 slidably connected in the grooves at the left and right ends of the bottom inner wall of the fixed clamping frame 1, and the top of the lower guide column 9 is fixedly connected with a magnet bar 7, which has an excellent guiding effect.

[0021] The upper movable clamping piece 4 is elastically and slidably connected to the upper inner wall of the fixed clamping frame 1 during use, and the workpiece to be processed can be quickly clamped. The upper movable clamping piece 4 can be adsorbed on the lower part by the elastic magnetic suction components arranged at the two ends of the bottom of the upper movable clamping piece 4, so that it can be clamped more tightly and not easy to loosen. When clamping is needed, the external power supply controls the bidirectional linear displacement drive component to drive the two fixed clamping frames 1 to separate through the external switch, and then drives the two fixed clamping frames 1 to move toward the middle to adapt to the length of the workpiece to be clamped after one end is clamped. The electromagnet bar 5 is closed, and the upper guide column 2 is pulled upward to make the upper movable clamping piece 4 move upward with the upper guide column 2. At this time, the second A spring 3 is compressed and shortened, and the part to be clamped is placed between the upper movable clamp 4 and the bottom plate of the inner wall of the fixed clamp frame 1, and the upper guide column 2 is released. The first spring 3 rebounds and resets, causing the upper movable clamp 4 to move downward and reset, clamping the part to be clamped. At this time, the electromagnet bar 5 is controlled to open. Since the magnetic pole of the magnet bar 7 is opposite to that of the electromagnet bar 5, the magnet bar 7 and the electromagnet bar 5 are firmly attracted together, further making the upper movable clamp 4 firmly clamp the part to be clamped. At the same time, the magnet bar 7 is elastically slidably connected to the left and right ends of the bottom of the inner wall of the fixed clamp frame 1 through the lower guide column 9 and the second spring 8, and the height of the magnetic suction component can be slightly and automatically adjusted according to the thickness of the plate to be clamped (the electromagnet bar 5, the electric telescopic rod 6 and the motor 11 are all existing products on the market).

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal processing clamping device, comprising a fixed clamping frame (1), characterized in that: The inner wall of the fixed clamp frame (1) is slidably connected to an upper movable clamp (4) via an upper guide column (2) slidably connected in the middle of the top; the top of the inner wall of the fixed clamp frame (1) and the upper movable clamp (4) are connected via a first spring (3); the left and right ends of the bottom of the upper movable clamp (4) are embedded with an electromagnet bar (5); the left and right ends of the bottom of the inner wall of the fixed clamp frame (1) are elastically connected to a magnet bar (7) with a magnetic pole opposite to that of the electromagnet bar (5) via a lower guide assembly and a second spring (8).

2. A sheet metal processing clamping device according to claim 1, characterized in that: There are two fixed clamp frames (1), which are both installed on the work surface by sliding toward each other through a bidirectional linear displacement drive component.

3. A sheet metal processing clamping device according to claim 2, characterized in that: The bidirectional linear displacement drive assembly comprises a bidirectional threaded screw (12) rotatably connected to the inner wall of the mounting shell (10), wherein the power input end of the bidirectional threaded screw (12) is connected to the power output end of the motor (11).

4. A sheet metal processing clamping device according to claim 3, characterized in that: The left-handed thread and the right-handed thread ends of the bidirectional threaded screw (12) are both threadedly connected to a screw sleeve (13), and the outer side wall of the screw sleeve (13) is connected to a fixed clamp frame (1) via a bearing (14) and an electric telescopic rod (6).

5. The sheet metal processing clamping device according to claim 1, characterized in that: The lower guide assembly comprises lower guide columns (9) slidably connected in grooves at the left and right ends of the bottom of the inner side wall of the fixed clamp frame (1), and a magnet bar (7) is fixedly connected to the top of the lower guide column (9).

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