Adjustable clamp of engraving and milling machine

Abstract

The utility model discloses an adjustable clamp of an engraving and milling machine, which comprises a frame, a workbench arranged at the front end of the frame, a bottom plate arranged at the lower end of the middle part of the frame, a sliding column arranged at the rear end between the bottom plate and the frame, a sliding block connected with the middle part of the outer cambered surface of the sliding column in a sliding manner, a supporting plate arranged at the front end of the sliding block, and an adjustable clamping mechanism, the adjustable clamping mechanism comprises clamping bins, rotating clamping jaws and middle clamping jaws, the clamping bins are installed at the left end and the right end of the front side face of the supporting plate correspondingly, the rotating clamping jaws are rotationally connected to the front end and the rear end of the interior of each clamping bin, the middle clamping jaws are installed in the clamping bins correspondingly, and the middle clamping jaws are located between the two rotating clamping jaws adjacent in the front-back direction correspondingly. The adjustable clamping mechanism further comprises a rotating shaft and a rotating block. According to the adjustable clamp of the engraving and milling machine, the adjustable clamping mechanism is operated to change the clamping area of the clamp according to different sizes of different workpieces, so that the workpieces of different sizes are clamped, and the applicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of engraving and milling machines, in particular to an adjustable clamp of an engraving and milling machine. Background Art

[0002] A milling machine is a CNC machine tool that combines engraving and milling functions. It is widely used in mold manufacturing, precision parts processing, artwork engraving and other fields. It has the characteristics of high precision, high efficiency and high flexibility, and is suitable for processing tasks of various complex shapes.

[0003] During the engraving and milling process, the workpiece usually needs to be clamped to ensure stability. However, some traditional clamping technologies use fixed jaws to clamp the workpiece. When the size of the workpiece changes, the worker needs to replace the jaws with those that match the workpiece size and re-clamp. The clamp cannot be adjusted according to the workpiece size, and the clamp needs to be replaced according to the workpiece size, which has significant limitations. To this end, an adjustable clamp for engraving and milling machines is proposed. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide an adjustable clamp for an engraving and milling machine. According to the different sizes of different workpieces, the adjustable clamping mechanism is operated to change the clamping area of ​​the clamp to clamp workpieces of different sizes. The clamp has strong applicability and can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an adjustable clamp for an engraving and milling machine, comprising a frame, a workbench provided at the front end of the frame, a base plate provided at the middle lower end of the frame, a sliding column provided at the rear end between the base plate and the frame, a slider slidably connected to the middle portion of the outer arc surface of the sliding column, a support plate provided at the front end of the slider, and an adjustable clamping mechanism;

[0006] Adjustable clamping mechanism: It includes a clamping bin, a rotating clamping jaw and an intermediate clamping jaw. The clamping bin is respectively installed on the left and right ends of the front side of the support plate. The front and rear ends of the clamping bin are rotatably connected with the rotating clamping jaws. The inside of the clamping bin is installed with an intermediate clamping jaw. The intermediate clamping jaws are respectively located between the two adjacent rotating clamping jaws in the front and rear. According to the different sizes of different workpieces, the adjustable clamping mechanism is operated to change the clamping area of ​​the fixture to clamp workpieces of different sizes, and it has strong applicability.

[0007] Furthermore, the adjustable clamping mechanism also includes a rotating shaft, a rotating block, a guide slide and a bidirectional screw. The rotating jaws are rotatably connected between the upper and lower inner walls of the clamping bin through the rotating shaft, and the bidirectional screws are rotatably connected between the front and rear inner walls of the clamping bin. The front and rear ends of the bidirectional screw are threadedly connected with a rotating block, and the inner ends of the rotating blocks are rotatably connected to the outer ends of the laterally adjacent rotating jaws. The guide slides are arranged between the front and rear inner walls of the clamping bin, and the lower ends of the rotating blocks are slidably connected to the outer arc surfaces of the longitudinally adjacent guide slides, so as to facilitate adjustment of the clamping area of ​​the clamping mechanism.

[0008] Furthermore, a control switch group is provided on the upper side of the workbench, and the input end of the control switch group is electrically connected to an external power supply for stable control.

[0009] Furthermore, motors are installed on the front sides of the clamping bins, and the output shafts of the motors are fixedly connected to the front ends of the front and rear adjacent bidirectional screw rods. The input ends of the motors are electrically connected to the output ends of the control switch groups for stable driving.

[0010] Furthermore, mounting plates are provided at both ends of the front side of the support plate, slide rails are provided on the upper side of the mounting plates, and the upper ends of the slide rails are slidably connected to movable plates, and the clamping bins are fixedly connected to the upper side of the movable plates for easy movement.

[0011] Furthermore, the rear ends of the mounting plates are each installed with an electric cylinder, the telescopic ends of the electric cylinder are fixedly connected to the rear ends of the laterally adjacent movable plates, and the input ends of the electric cylinder are electrically connected to the output ends of the control switch group to facilitate drive clamping.

[0012] Furthermore, a screw rod is rotatably connected between the base plate and the top wall of the frame, the middle part of the slider is threadedly connected to the middle part of the screw rod, and an electric motor is installed on the lower side of the base plate. The output shaft of the motor is fixedly connected to the lower end of the screw rod, and the input end of the motor is electrically connected to the output end of the control switch group for stable drive.

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

[0014] With the cooperation of rotating the clamping jaws, workers can operate the adjustable clamping mechanism to change the clamping area of ​​the clamp according to the different sizes of different workpieces to clamp workpieces of different sizes, with strong applicability. 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 It is a structural diagram of the rear side of the utility model;

[0017] Figure 3It is a schematic structural diagram of a partial cross-section of the adjustable clamping mechanism of the utility model.

[0018] In the figure: 1 frame, 2 adjustable clamping mechanism, 21 clamping chamber, 22 rotating jaw, 23 rotating shaft, 24 rotating block, 25 intermediate jaw, 26 guide slide, 27 bidirectional screw, 3 mounting plate, 4 slide rail, 5 moving plate, 6 motor, 7 electric cylinder, 8 support plate, 9 slider, 10 screw, 11 slide, 12 bottom plate, 13 motor, 14 workbench, 15 control switch group. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on 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 1-3 , this embodiment provides a technical solution: an adjustable fixture of an engraving and milling machine, comprising a frame 1, a workbench 14 is provided at the front end of the frame 1, a control switch group 15 is provided on the upper side of the workbench 14, the input end of the control switch group 15 is electrically connected to an external power supply, a bottom plate 12 is provided at the lower end of the middle part of the frame 1, a sliding column 11 is provided at the rear end between the bottom plate 12 and the frame 1, a slider 9 is slidably connected to the middle part of the outer arc surface of the sliding column 11, a screw rod 10 is rotatably connected between the bottom plate 12 and the top wall of the frame 1, the middle part of the slider 9 is threadedly connected to the middle part of the screw rod 10, a motor 13 is installed on the lower side of the bottom plate 12, the output shaft of the motor 13 is fixedly connected to the lower end of the screw rod 10, the input end of the motor 13 is electrically connected to the output end of the control switch group 15, and a support plate 8 is provided at the front end of the slider 9.

[0021] The adjustable clamping mechanism 2 includes a clamping bin 21, a rotating clamping jaw 22 and an intermediate clamping jaw 25. The clamping bin 21 is respectively mounted on the left and right ends of the front side of the support plate 8. The left and right ends of the front side of the support plate 8 are provided with mounting plates 3. The upper side of the mounting plate 3 is provided with a slide rail 4. The upper end of the slide rail 4 is slidably connected to the movable plate 5. The clamping bin 21 is fixedly connected to the upper side of the movable plate 5. The rear end of the mounting plate 3 is installed with an electric cylinder 7. The telescopic end of the electric cylinder 7 is fixedly connected to the rear end of the laterally adjacent movable plate 5. The input end of the electric cylinder 7 is electrically connected to the output end of the control switch group 15. The front and rear ends of the interior of the clamping bin 21 are rotatably connected to the rotating clamping jaw 22. The interior of the clamping bin 21 is provided with an intermediate clamping jaw 25. The intermediate clamping jaw 25 is respectively located at the two front and rear adjacent rotating clamping jaws 22. The adjustable clamping mechanism 2 also includes a rotating shaft 23, a rotating block 24, a guide slide 26 and a bidirectional screw 27. The rotating jaws 22 are rotatably connected between the upper and lower inner walls of the clamping bin 21 through the rotating shaft 23, and the bidirectional screw 27 are rotatably connected between the front and rear inner walls of the clamping bin 21. The front side of the clamping bin 21 is equipped with a motor 6, and the output shaft of the motor 6 is fixedly connected to the front end of the front and rear adjacent bidirectional screws 27. The input end of the motor 6 is electrically connected to the output end of the control switch group 15. The front and rear ends of the bidirectional screw 27 are threadedly connected with the rotating block 24, and the inner end of the rotating block 24 is rotatably connected to the outer end of the laterally adjacent rotating jaw 22. The guide slides 26 are arranged between the front and rear inner walls of the clamping bin 21, and the lower end of the rotating block 24 is slidably connected to the outer arc surface of the longitudinally adjacent guide slide 26.

[0022] The working principle of this utility model is as follows:

[0023] First, the worker installs the adjustable clamp of the engraving and milling machine inside the engraving and milling machine, and then the worker places the workpiece to be engraved and milled on the workbench 14. According to the different sizes of different workpieces, the worker can operate the adjustable clamping mechanism 2 to change the clamping area of ​​the clamp to clamp workpieces of different sizes. The worker operates the control switch group 15 to make the motor 6 run at the same time. At this time, the motor 6 drives the adjacent two-way screw rods 27 to rotate. At this time, under the rotation limit of the two-way screw rod 27 thread and the guide slide column 26, the front and rear rotating blocks 24 begin to move relative to or oppositely. At this time, the rotating block 24 drives the outer end of the adjacent rotating jaw 22 to move, and under the position limit of the rotating shaft 23 , the rotating jaws 22 rotate around the adjacent rotating shaft 23, and the outer ends of the rotating jaws 22 rotate on the inner ends of the adjacent rotating blocks 24. At this time, by rotating the rotating jaws 22, the distance between the two rotating jaws 22 is changed to adapt to clamping workpieces of different sizes. Then the worker manipulates the control switch group 15 to make the electric cylinder 7 operate simultaneously. The telescopic end of the electric cylinder 7 pushes the adjacent movable plate 5 and the clamping bin 21 to slide inward along the track of the adjacent slide rail 4. During the movement of the clamping bin 21, the rotating jaws 22 and the middle jaws 25 inside it are driven to move inward synchronously until they clamp the surface of the workpiece, thereby completing the effect of clamping the workpiece;

[0024] Depending on the height of the workpiece, in order to ensure stability during the engraving and milling process, it is necessary to clamp the middle position of the workpiece. At this time, the worker operates the control switch group 15 to operate the motor 13, and the output shaft of the motor 13 drives the screw rod 10 to rotate. At this time, under the cooperation of the screw rod 10 thread and the rotation limit of the slide column 11, the slider 9 drives the support plate 8 to move, and then drives the adjustable clamping mechanism 2 to move. When the adjustable clamping mechanism 2 moves to the appropriate position, the worker operates the adjustable clamping mechanism 2 to cooperate and complete the clamping of the workpiece.

[0025] It is worth noting that the motor 13 disclosed in the above embodiment can be model 13YE3-631-2, the motor 6 can be model YEJ-631-2, and the electric cylinder 7 can be model FY0141. The control switch group 15 is provided with control buttons that correspond one-to-one to the motor 6, the electric cylinder 7 and the motor 13 and are used to control their switches.

[0026] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An adjustable fixture for a milling machine, comprising a frame (1), a workbench (14) provided at the front end of the frame (1), a base plate (12) provided at the lower middle end of the frame (1), a slide column (11) provided at the rear end between the base plate (12) and the frame (1), a slider (9) slidably connected to the middle portion of the outer arc surface of the slide column (11), a support plate (8) provided at the front end of the slider (9), characterized in that: Also included is an adjustable clamping mechanism (2); The adjustable clamping mechanism (2) comprises a clamping bin (21), a rotating clamping jaw (22) and an intermediate clamping jaw (25); the clamping bin (21) is respectively mounted on the left and right ends of the front side of the support plate (8); the front and rear ends of the clamping bin (21) are both rotatably connected to the rotating clamping jaw (22); the interior of the clamping bin (21) is respectively mounted with an intermediate clamping jaw (25); the intermediate clamping jaw (25) is respectively located between two adjacent rotating clamping jaws (22) at the front and rear ends.

2. The adjustable fixture for an engraving and milling machine according to claim 1, characterized in that: The adjustable clamping mechanism (2) further comprises a rotating shaft (23), a rotating block (24), a guide slide (26) and a bidirectional screw rod (27); the rotating jaws (22) are rotatably connected between the upper and lower inner walls of the clamping bin (21) via the rotating shaft (23); the bidirectional screw rod (27) is rotatably connected between the front and rear inner walls of the clamping bin (21); the front and rear ends of the bidirectional screw rod (27) are threadedly connected to the rotating block (24); the inner ends of the rotating blocks (24) are rotatably connected to the outer ends of the laterally adjacent rotating jaws (22); the guide slide rods (26) are arranged between the front and rear inner walls of the clamping bin (21); the lower ends of the rotating blocks (24) are slidably connected to the outer arc surfaces of the longitudinally adjacent guide slide rods (26).

3. The adjustable fixture for an engraving and milling machine according to claim 2, characterized in that: A control switch group (15) is provided on the upper side of the workbench (14), and an input end of the control switch group (15) is electrically connected to an external power supply.

4. The adjustable fixture for an engraving and milling machine according to claim 3, characterized in that: The front side of the clamping bin (21) is equipped with a motor (6), the output shaft of the motor (6) is fixedly connected to the front end of the front and rear adjacent bidirectional screw rods (27), and the input end of the motor (6) is electrically connected to the output end of the control switch group (15).

5. The adjustable fixture for an engraving and milling machine according to claim 3, characterized in that: The left and right ends of the front side of the support plate (8) are both provided with mounting plates (3), the upper side of the mounting plate (3) is provided with a slide rail (4), the upper end of the slide rail (4) is slidably connected to a movable plate (5), and the clamping bin (21) is fixedly connected to the upper side of the movable plate (5).

6. The adjustable fixture for an engraving and milling machine according to claim 5, characterized in that: The rear ends of the mounting plates (3) are each mounted with an electric cylinder (7), the telescopic ends of the electric cylinders (7) are each fixedly connected to the rear ends of the laterally adjacent movable plates (5), and the input ends of the electric cylinders (7) are each electrically connected to the output ends of the control switch group (15).

7. The adjustable fixture for an engraving and milling machine according to claim 3, characterized in that: A screw rod (10) is rotatably connected between the base plate (12) and the top wall of the frame (1), the middle portion of the slider (9) is threadedly connected to the middle portion of the screw rod (10), a motor (13) is installed on the lower side of the base plate (12), the output shaft of the motor (13) is fixedly connected to the lower end of the screw rod (10), and the input end of the motor (13) is electrically connected to the output end of the control switch group (15).

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