Workpiece clamping device for engraving machine

Abstract

The utility model discloses a workpiece clamping device for a carving machine, which comprises a carving table, clamping components are mounted on four sides of the top end of the carving table, each clamping component comprises fixing plates fixedly mounted on the four sides of the top end of the carving table, and clamping spaces are arranged on the sides, close to each other, of the fixing plates. Clamping blocks are arranged on the sides, close to the clamping space, of the fixing plates, the ends, close to the fixing plates, of the clamping blocks are fixedly connected with the output ends of air cylinders, the air cylinders are fixedly installed on the sides, away from the clamping blocks, of the fixing plates, and auxiliary fixing units are installed at the top ends of the clamping blocks; in the working process, when the vertical plate is perpendicular to the clamping block and the clamping block clamps a workpiece, the top wall of the edge of the workpiece can be pressed by screwing the pressing screw rod, and when the vertical plate rotates to be parallel to the clamping block, the transverse plate leaves the position above the edge of the workpiece, the top wall of the edge of the workpiece can be carved conveniently, and workpiece carving is prevented from being hindered.

Description

Technical Field

[0001] The utility model belongs to the technical field of engraving machines, in particular to a workpiece clamping device for engraving machines. Background Art

[0002] According to the patent document with the authorization announcement number of "CN210941120U" and the invention name of "A workpiece clamping device for an engraving machine", the specification states that the limit mechanism includes a limit seat, a limit rod and a clamping plate. The cross-section of the limit seat is L-shaped. Ear plates are fixedly welded on both sides of the lower half of the limit seat. A limit bolt threadedly connected to the limit groove is provided in the limit hole drilled in the center of the ear plate. The workpiece is placed on the top of the support plate, and the position of the limit groove where the limit bolt is located is adjusted to adjust the distance between the four groups of limit seats, so as to adjust and fix according to the size of the workpiece. The limit rod is threadedly connected in the connecting groove dug in the center of the upper half of the limit seat. The top and the outer periphery of the limit rod are respectively fixedly welded to the inner ring of the limit valve and the limit bearing seat, and the bottom of the limit bearing seat is fixedly welded to the top of the clamping plate. The limit valve is rotated to drive the limit rod to rotate, and the distance between the clamping plate and the support plate is adjusted, so as to adjust and fix according to the thickness of the workpiece. However, the following defects still exist:

[0003] When the workpiece is clamped, the top wall of the workpiece is pressed from top to bottom by a screw. When the top wall at the edge of the workpiece needs to be engraved, the engraving of the workpiece is discontinuous due to obstacles, resulting in poor engraving effect. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a workpiece clamping device for an engraving machine, which effectively solves the problem that the clamping member may hinder the top wall at the edge of the workpiece when engraving.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a workpiece clamping device for an engraving machine, comprising an engraving table, wherein clamping components are installed on the four sides of the top of the engraving table;

[0006] The clamping assembly includes fixing plates fixedly installed on the four sides of the top of the engraving table, the sides of each fixing plate close to each other are set as clamping space, and the sides of the fixing plates close to the clamping space are provided with clamping blocks, and the ends of the clamping blocks close to the fixing plates are fixedly connected to the output ends of the cylinders, and the cylinders are fixedly installed on the sides of the fixing plates away from the clamping blocks, and the tops of the clamping blocks are installed with auxiliary fixing units.

[0007] Preferably, the auxiliary fixing unit comprises side plates symmetrically mounted on the top of the clamping block, a fixing shaft is fixedly mounted between the two side plates, and the side plate is located on a side of the top of the clamping block away from the fixing plate.

[0008] Preferably, a vertical plate is provided above the clamping block. The bottom end of the vertical plate is rotatably connected to the fixed shaft, and a horizontal plate is fixedly installed at the top end of the vertical plate. The horizontal plate is perpendicular to the vertical plate, and a positioning and fixing unit is installed between the vertical plate and the clamping block.

[0009] Preferably, a screw cylinder is fixedly installed on the horizontal plate. A pressing screw is installed in the screw cylinder in a threaded manner. A rotating handle is fixedly installed at the top end of the pressing screw, and a pressing block is fixedly installed at the bottom end of the pressing screw. The pressing block is located below the horizontal plate.

[0010] Preferably, the positioning and fixing unit includes a first card slot opened at the bottom end of the vertical plate. A second card slot is opened on one side of the vertical plate close to the fixed plate. The first card slot and the second card slot are equally angled on the outside of the fixed shaft, and the inner diameter of the first card slot is the same as that of the second card slot.

[0011] Preferably, a movable slot is opened inside the clamping block. A movable plate is movably installed inside the movable slot. A clamping rod is fixedly installed at the top end of the movable plate. The top end of the clamping rod is inserted into the first card slot. A spring is fixedly installed at the bottom end of the clamping rod. The bottom end of the spring is fixedly connected to the inner bottom wall of the movable slot. An electromagnet is fixedly installed on the inner bottom wall of the movable plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] During the work, when the vertical plate and the clamping block are perpendicular, when the clamping block clamps the workpiece, turning the pressing screw can press the top wall of the edge of the workpiece. When the vertical plate rotates to a state parallel to the clamping block, the horizontal plate moves away from above the edge of the workpiece, which is convenient for engraving the top wall of the edge of the workpiece and avoids hindering the engraving of the workpiece.

[0014] During the work, when it is necessary to press the workpiece, the vertical plate is in a state perpendicular to the clamping block. At this time, the clamping rod is clamped with the first card slot. When it is necessary to engrave the top wall of the edge of the workpiece, the vertical plate is in a state parallel to the clamping block. At this time, the clamping rod is clamped with the second card slot, which is convenient for positioning the position of the vertical plate and convenient for engraving.

[0015] During the work, when it is necessary to engrave the top wall of the edge of the workpiece and the vertical plate is in a state parallel to the clamping block, the pressing screw can move horizontally and extend. When the clamping block moves to the limit position and cannot contact the outer wall of the workpiece, turn the pressing screw to make the pressing screw move horizontally for auxiliary clamping, which is convenient for engraving the workpiece. Description of the Drawings

[0016] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model.

[0017] In the accompanying drawings:

[0018] Figure 1 This is a schematic structural diagram of a workpiece clamping device for a engraving machine of the present utility model;

[0019] Figure 2 This is a schematic structural diagram of the clamping assembly of the present utility model;

[0020] Figure 3 This is a schematic structural diagram of the auxiliary fixing unit of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the positioning and fixing unit of the present utility model.

[0022] In the figure: 1, engraving table; 2, clamping assembly; 201, fixing plate; 202, clamping block; 203, cylinder; 204, auxiliary fixing unit; 2041, vertical plate; 2042, horizontal plate; 2043, screw barrel; 2044, pressing screw; 2045, turning handle; 2046, pressing block; 2047, side plate; 2048, fixed shaft; 205, positioning and fixing unit; 2051, first card slot; 2052, second card slot; 2053, movable slot; 2054, movable plate; 2055, clamping rod; 2056, spring; 2057, electromagnet; 2058, magnetic block. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0024] Embodiment 1, given by Figures 1-4 This utility model relates to a workpiece clamping device for an engraving machine, including an engraving table 1, and clamping assemblies 2 are installed on the four sides of the top end of the engraving table 1;

[0025] The clamping assembly 2 includes fixing plates 201 fixedly installed on the four sides of the top end of the engraving table 1. The side of each fixing plate 201 close to each other is set as a clamping space. Clamping blocks 202 are arranged on the side of the fixing plate 201 close to the clamping space. One end of the clamping block 202 close to the fixing plate 201 is fixedly connected to the output end of a cylinder 203. The cylinder 203 is fixedly installed on the side of the fixing plate 201 away from the clamping block 202. An auxiliary fixing unit 204 is installed at the top end of the clamping block 202.

[0026] The auxiliary fixing unit 204 includes side plates 2047 symmetrically installed at the top of the clamping block 202. A fixing shaft 2048 is fixedly installed between the two side plates 2047. The side plates 2047 are located on the side of the top of the clamping block 202 away from the fixing plate 201. A vertical plate 2041 is provided above the clamping block 202. The bottom end of the vertical plate 2041 is rotatably connected to the fixing shaft 2048. The top end of the vertical plate 2041 is fixedly installed with a horizontal plate 2042. The horizontal plate 2042 is perpendicular to the vertical plate 2041. A positioning and fixing unit 205 is installed between the vertical plate 2041 and the clamping block 202. A screw cylinder 2043 is fixedly installed on the horizontal plate 2042. A pressing screw 2044 is threadedly installed inside the screw cylinder 2043. The top end of the pressing screw 2044 is fixedly installed with a turning handle 2045. The bottom end of the pressing screw 2044 is fixedly installed with a pressing block 2046. The pressing block 2046 is located below the horizontal plate 2042. When the vertical plate 2041 is perpendicular to the clamping block 202 and the clamping block 202 clamps the workpiece, turning the pressing screw 2044 can press the top wall of the edge of the workpiece. When the vertical plate 2041 rotates to a state parallel to the clamping block 202, the horizontal plate 2042 moves away from above the edge of the workpiece, facilitating engraving on the top wall of the edge of the workpiece and avoiding obstruction to the engraving of the workpiece. When it is necessary to engrave the top wall of the edge of the workpiece and the vertical plate 2041 is in a state parallel to the clamping block 202, the pressing screw 2044 can move horizontally and extend. When the clamping block 202 moves to the limit position and cannot contact the outer wall of the workpiece, turning the pressing screw 2044 causes the pressing screw 2044 to move horizontally for auxiliary clamping, facilitating the engraving of the workpiece.

[0027] The positioning and fixing unit 205 includes a first card slot 2051 opened at the bottom end of the vertical plate 2041. A second card slot 2052 is opened on the side of the vertical plate 2041 close to the fixing plate 201. The first card slot 2051 and the second card slot 2052 are located outside the fixing shaft 2048 at equal angles. The inner diameter of the first card slot 2051 is the same as the inner diameter of the second card slot 2052. An activity slot 2053 is opened inside the clamping block 202. An activity plate 2054 is movably installed inside the activity slot 2053. A clamping rod 2055 is fixedly installed at the top end of the activity plate 2054. The top end of the clamping rod 2055 is clamped into the inside of the first card slot 2051. A spring 2056 is fixedly installed at the bottom end of the clamping rod 2055. The bottom end of the spring 2056 is fixedly connected to the inner bottom wall of the activity slot 2053. An electromagnet 2057 is fixedly installed on the inner bottom wall of the activity plate 2054. When it is necessary to press the workpiece, the vertical plate 2041 is in a state perpendicular to the clamping block 202. At this time, the clamping rod 2055 is clamped with the first card slot 2051. When it is necessary to engrave the top wall of the edge of the workpiece, the vertical plate 2041 is in a state parallel to the clamping block 202. At this time, the clamping rod 2055 is clamped with the second card slot 2052, facilitating the positioning of the position of the vertical plate 2041 and facilitating engraving.

[0028] Working principle: During operation, first place the workpiece to be clamped in the area between each fixed plate 201. Then, turn on the air cylinder 203 so that the output end of the air cylinder 203 extends, pushing each clamping block 202 towards the workpiece to clamp the workpiece. At this time, the cross plate 2042 moves above the workpiece. Then, turn the compression screw 2044. Since the compression screw 2044 is threadedly connected to the screw barrel 2043, it drives the compression screw 2044 to move downward, causing the compression block 2046 to press the top wall of the edge position of the workpiece, improving the clamping stability;

[0029] When engraving the top wall of the edge position of the workpiece, during clamping, first energize the electromagnet 2057 to generate an attractive force on the magnetic block 2058, causing the clamping rod 2055 to move downward and disengage from the first clamping groove 2051. Then, rotate the vertical plate 2041 clockwise so that the vertical plate 2041 is parallel to the clamping block 202. Then, the electromagnet 2057 is powered off, and the clamping rod 2055 moves back under the elastic force of the spring 2056 and is clamped into the second clamping groove 2052 to position the vertical plate 2041, facilitating the retraction of the cross plate 2042 and avoiding obstruction to engraving. In this case, when the workpiece is far from the clamping block 202 and the clamping block 202 still cannot contact the workpiece when the output end of the air cylinder 203 is fully extended, turn the compression screw 2044 so that the compression screw 2044 moves horizontally towards the workpiece, making the compression block 2046 closely adhere to the outer wall of the workpiece to complete clamping, which is convenient for use.

Claims

1. A workpiece clamping device for an engraving machine, comprising an engraving table (1), characterized in that: The four sides of the top of the engraving table (1) are all equipped with clamping components (2); The clamping assembly (2) comprises a fixing plate (201) fixedly mounted on four sides of the top of the engraving table (1); the sides of the fixing plates (201) close to each other are set as a clamping space; the sides of the fixing plates (201) close to the clamping space are each provided with a clamping block (202); one end of the clamping block (202) close to the fixing plate (201) is fixedly connected to the output end of the cylinder (203); the cylinder (203) is fixedly mounted on the side of the fixing plate (201) away from the clamping block (202); and the top of the clamping block (202) is provided with an auxiliary fixing unit (204).

2. A workpiece clamping device for an engraving machine according to claim 1, characterized in that: The auxiliary fixing unit (204) comprises a side plate (2047) symmetrically mounted on the top of the clamping block (202), a fixing shaft (2048) being fixedly mounted between the two side plates (2047), and the side plate (2047) is located on a side of the top of the clamping block (202) away from the fixing plate (201).

3. A workpiece clamping device for an engraving machine according to claim 2, characterized in that: A vertical plate (2041) is provided above the clamping block (202), the bottom end of the vertical plate (2041) is rotatably connected to a fixed shaft (2048), a horizontal plate (2042) is fixedly installed on the top of the vertical plate (2041), the horizontal plate (2042) and the vertical plate (2041) are vertically arranged, and a positioning and fixing unit (205) is installed between the vertical plate (2041) and the clamping block (202).

4. A workpiece clamping device for an engraving machine according to claim 3, characterized in that: A screw barrel (2043) is fixedly mounted on the transverse plate (2042), a clamping screw (2044) is mounted on the internal thread of the screw barrel (2043), a turning handle (2045) is fixedly mounted on the top end of the clamping screw (2044), a clamping block (2046) is fixedly mounted on the bottom end of the clamping screw (2044), and the clamping block (2046) is located below the transverse plate (2042).

5. A workpiece clamping device for an engraving machine according to claim 3, characterized in that: The positioning and fixing unit (205) comprises a first slot (2051) formed at the bottom end of the vertical plate (2041); a second slot (2052) is formed on a side of the vertical plate (2041) close to the fixing plate (201); the first slot (2051) and the second slot (2052) are located at the same angle on the outside of the fixing shaft (2048); and the inner diameter of the first slot (2051) is the same as the inner diameter of the second slot (2052).

6. A workpiece clamping device for an engraving machine according to claim 5, characterized in that: The clamping block (202) is provided with a movable groove (2053) inside, a movable plate (2054) is movably installed inside the movable groove (2053), a clamping rod (2055) is fixedly installed on the top of the movable plate (2054), the top of the clamping rod (2055) is clamped into the inside of the first clamping groove (2051), a spring (2056) is fixedly installed on the bottom end of the clamping rod (2055), the bottom end of the spring (2056) is fixedly connected to the inner bottom wall of the movable groove (2053), and an electromagnet (2057) is fixedly installed on the inner bottom wall of the movable plate (2054).

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