Riveting die

Abstract

A riveting die comprises an upper die part and a lower die part used for placing a workpiece, a positioning device is arranged on the lower die part and comprises a driver and a sliding block, and the driver is in driving connection with the sliding block; when a workpiece is riveted, the driver drives the sliding block to move in the direction of the workpiece, so that one side of the sliding block is pressed on the workpiece, and then the workpiece is positioned; after the workpiece is riveted, the driver drives the sliding block to move in the direction away from the workpiece so that the sliding block can return; a limiting block is arranged at the bottom of the upper die part, after the sliding block moves towards the workpiece, the upper die part drives the limiting block to move downwards, and the other side of the sliding block abuts against the limiting block. According to the riveting die, the air cylinder is adopted to replace an original spring to return the sliding block, and the air cylinder is adopted to drive the sliding block to position a workpiece, so that the sliding block and a limiting block (pushing block) basically do not need to be matched through an inclined plane, abrasion of the sliding block can be greatly reduced, the positioning accuracy of the workpiece is improved, and then the accuracy of the die is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to die technical field, especially a riveting die. BACKGROUND

[0002] The box body of the traditional microwave oven or oven, the box body includes the shell and the bottom plate, the shell and the bottom plate are riveted through the riveting die, need to position the shell when riveting, the riveting die includes the upper die part and the lower die part, is provided with the slider and the spring on the lower die part, is provided with the push block on the upper die part, the push block and the slider are all provided with the inclined plane, the upper die part drives the push block to move down, the push block drives the slider to move to the direction of the shell through the cooperation of the inclined plane, to make the slider press on the shell, and then position the shell, after the shell and the bottom plate riveting, the upper die part drives the push block to move up, the slider is reset through the cooperation of the inclined plane under the action of the spring, the slider of this structure is easy to wear after using for many times, the accuracy of positioning is low after wearing, and then the accuracy of the die is reduced.

[0003] Therefore, it is necessary to make further improvement. CONTENT

[0004] The utility model discloses a riveting die with simple structure, which can reduce the wear of the slider, has accurate positioning, high accuracy and strong practicability, and overcomes the defects of the prior art.

[0005] A riveting die designed for this purpose comprises an upper die part and a lower die part for placing a workpiece, characterized in that the lower die part is provided with a positioning device, the positioning device comprises a drive and a slider, and the drive is drivingly connected to the slider; when the workpiece is riveted, the drive drives the slider to move towards the workpiece, so that one side of the slider presses on the workpiece, thereby positioning the workpiece; after the workpiece is riveted, the drive drives the slider to move away from the workpiece, so that the slider is reset.

[0006] The upper die part is provided with a limiting block at the bottom, and the upper die part drives the limiting block to move down after the slider moves towards the workpiece, and the other side of the slider abuts against the limiting block.

[0007] The other side of the slider is provided with a first inclined surface, and the limiting block is provided with a second inclined surface, and the first inclined surface and the second inclined surface can cooperate with each other when the upper die part drives the limiting block to move down.

[0008] The output end of the drive is connected to a connecting head, the connecting head is connected to the slider in cooperation, the bottom of the limiting block is provided with a clearance, and the connecting head is at least partially located in the clearance after the upper die part drives the limiting block to move down.

[0009] The drive is a pneumatic cylinder, the pneumatic cylinder is provided with a pneumatic telescopic piston rod, and the piston rod is connected to the connecting head in cooperation.

[0010] The slider bottom is provided with a guide groove, and the lower die part is provided with a slide rail, and the slider is slidably arranged on the slide rail through the guide groove.

[0011] The slider is provided with an acting surface on one side for pressing on the workpiece.

[0012] The lower die part is provided with a mounting groove for placing the workpiece, and the positioning device is distributed on the circumferential side of the mounting groove.

[0013] The bottom of the slider is provided with a plurality of punches for acting on the workpiece.

[0014] The lower die part comprises a lower die assembly and a movable plate elastically movably arranged on the lower die assembly, and the positioning device is mounted on the movable plate, and the upper die part moves downward to act on the movable plate, so that the movable plate drives the punch to move downward, and then the punch acts on the workpiece.

[0015] The riveting die of the utility model drives the slider to move to the direction of the workpiece through the cylinder to make the slider press on the workpiece on one side, and then the workpiece is positioned; after the workpiece is riveted, the cylinder drives the slider to move to the direction away from the workpiece to make the slider reset, the cylinder is used to replace the original spring to reset the slider, and the cylinder is used to drive the slider to position the workpiece, so that the slider and the limiting block (push block) basically do not need to cooperate through the inclined surface, the wear of the slider can be greatly reduced, the positioning accuracy of the workpiece is improved, and then the accuracy of the die is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure schematic view of the riveting die in an embodiment of the utility model.

[0017] Figure 2 It is the sectional view of the riveting die in an embodiment of the utility model.

[0018] Figure 3 It is the sectional view of the riveting die in another orientation in an embodiment of the utility model.

[0019] Figure 4 It is the sectional view of the riveting die in another orientation in an embodiment of the utility model. Figure 2 It is the enlarged structure schematic view of the position A.

[0020] Figure 5 It is the enlarged structure schematic view of the position B. Figure 3 It is the enlarged structure schematic view of the position B.

[0021] Figure 6 It is the overall structure schematic view of the positioning device in an embodiment of the utility model.

[0022] Figure 7 It is the overall structure schematic view of the positioning device in another orientation in an embodiment of the utility model.

[0023] Figure 8 It is the exploded structural schematic view of the lower die part and the workpiece in one embodiment of the utility model.

[0024] Figure 9 It is the whole structural schematic view of the upper die part in one embodiment of the utility model. DETAILED DESCRIPTION

[0025] The utility model will be further described in connection with the drawings and embodiments.

[0026] Referring to Figures 1-9 , the riveting die, including upper die part 1 and the lower die part 2 for placing workpiece, be provided with positioning device 3 on lower die part 2, positioning device 3 includes driver 4 and slider 5, driver 4 drives and connects slider 5;When riveting workpiece, driver 4 drives slider 5 to the direction of workpiece movement, to make the one side of slider 5 press on workpiece, and then position workpiece;After riveting workpiece, driver 4 drives slider 5 to the direction of workpiece movement, to make slider 5 reset.

[0027] The bottom of upper die part 1 is provided with limit block 6, after slider 5 to the direction of workpiece movement, upper die part 1 drives limit block 6 to move down (machine power part drives upper die part 1 to move down), the other side of slider 5 is resisted on limit block 6, can prevent slider 5 to the direction of workpiece movement and influence the accuracy of workpiece positioning.

[0028] The other side top of slider 5 is provided with first inclined plane 7, and the bottom of limit block 6 is provided with second inclined plane 8, when upper die part 1 drives limit block 6 to move down, first inclined plane 7 and second inclined plane 8 can mutually cooperate;When driver 4 drives slider 5 to the direction of workpiece movement and does not reach the position, when upper die part 1 drives limit block 6 to move down, first inclined plane 7 and second inclined plane 8 will mutually cooperate, and then push slider 5 to the direction of workpiece movement and reach the position.

[0029] The output end of driver 4 is connected with connecting head 9, and connecting head 9 is connected with slider 5, and the bottom of limit block 6 is provided with avoiding notch 10, after upper die part 1 drives limit block 6 to move down, connecting head 9 is at least partially located in avoiding notch 10, to prevent limit block 6 from moving down and interfering with connecting head 9.

[0030] Driver 4 is air cylinder, and the air cylinder is provided with pneumatic telescopic piston rod 11, and piston rod 11 is connected with connecting head 9, and piston rod 11 is telescopic and drives slider 5 to move through connecting head 9.

[0031] The bottom of slider 5 is provided with guide slot 12, and the lower die part 2 is provided with slide rail 13, and slider 5 is slidably arranged on slide rail 13 through guide slot 12.

[0032] The slide 5 is provided with an acting surface 16 on one side for pressing against the workpiece.

[0033] The lower die part 2 is provided with a mounting groove 14 for placing the workpiece, and the positioning device 3 is distributed on the circumferential side of the mounting groove 14; the workpiece is a cabinet 19 of a microwave oven or oven, which includes a shell 20 and a bottom plate 21, and the bottom plate 21 is positioned on the mounting groove 14, and the slide 5 presses against the side of the shell 20 through the acting surface 16, thereby positioning the shell 20, and the positioning device 3 is distributed on the left and right sides and the rear side of the cabinet 19 (the shell 20).

[0034] The bottom of the slide 5 is provided with a plurality of punches 15 for acting on the workpiece.

[0035] The lower die part 2 includes a lower die assembly 17 and a movable plate 18 movably arranged on the lower die assembly 17 in an up-down elastic manner, and the positioning device 3 (i.e. the driver 4) is installed on the movable plate 18; when the upper die part 1 moves downward (after the driver 4 drives the slide 5 to position the workpiece), the movable plate 18 is acted on by the upper die part 1, so as to drive the punches 15 to move downward, and then the punches 15 act on the workpiece.

[0036] The shell 19 is provided with a flange 22 at the bottom, and the flange 22 is provided with a plurality of through holes 23; the edge of the bottom plate 21 is provided with a plurality of riveting edges 24, and the riveting edges 24 pass through the through holes 23 upward; when the movable plate 18 drives the punches 15 to move downward, the punches 15 press downward on the riveting edges 24, so as to make the riveting edges 24 turn outward, and the flange 22 is pressed between the riveting edges 24 and the edge of the bottom plate 21, so as to rivet the shell 19 and the bottom plate 21.

[0037] The lower die assembly 17 and the movable plate 18 are provided with a reset spring 25; after the shell 19 and the bottom plate 21 are riveted, the upper die part 1 moves upward to reset, the movable plate 18 moves upward to reset under the elastic force of the reset spring 25, and the driver 4 drives the slide 5 to reset.

[0038] The bottom of the upper die part 1 is provided with an acting column 26; when the upper die part 1 moves downward, the acting column 26 acts on the movable plate 18, so as to drive the punches 15 to move downward.

[0039] The above is the preferred scheme of the utility model, which displays and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A riveting die comprising an upper die portion (1) and a lower die portion (2) for receiving a workpiece, characterised in that: The lower mold part (2) is provided with a positioning device (3), the positioning device (3) comprises a driver (4) and a sliding block (5), the driver (4) is drivingly connected with the sliding block (5); when the workpiece is riveted, the driver (4) drives the sliding block (5) to move towards the workpiece, so that one side of the sliding block (5) is pressed on the workpiece, and then the workpiece is positioned; after the workpiece is riveted, the driver (4) drives the sliding block (5) to move away from the workpiece, so that the sliding block (5) is returned.

2. The rivet die of claim 1, wherein: The upper mold part (1) is provided with a limiting block (6) at the bottom, after the sliding block (5) moves towards the workpiece, the upper mold part (1) drives the limiting block (6) to move downwards, and the other side of the sliding block (5) is abutted against the limiting block (6).

3. The rivet die of claim 2, wherein: The other side of the sliding block (5) is provided with a first inclined surface (7), the limiting block (6) is provided with a second inclined surface (8), when the upper mold part (1) drives the limiting block (6) to move downwards, the first inclined surface (7) and the second inclined surface (8) can cooperate with each other.

4. The rivet die of claim 2, wherein: The output end of the driver (4) is connected with a connecting head (9), the connecting head (9) is connected with the sliding block (5) in a matched mode, the bottom of the limiting block (6) is provided with an avoiding gap (10), after the upper mold part (1) drives the limiting block (6) to move downwards, the connecting head (9) is at least partially located in the avoiding gap (10).

5. The rivet die of claim 4, wherein: The driver (4) is a pneumatic cylinder, the pneumatic cylinder is provided with a pneumatic telescopic piston rod (11), the piston rod (11) is connected with the connecting head (9) in a matched mode.

6. The rivet die of claim 1, wherein: The bottom of the sliding block (5) is provided with a guide groove (12), the lower mold part (2) is provided with a sliding rail (13), and the sliding block (5) is slidingly arranged on the sliding rail (13) through the guide groove (12).

7. The rivet die of claim 1, wherein: One side of the sliding block (5) is provided with an acting surface (16) for pressing on the workpiece.

8. The rivet die of claim 1, wherein: The middle of the lower mold part (2) is provided with a mounting groove (14) for placing the workpiece, and the positioning device (3) is distributed on the circumferential side of the mounting groove (14).

9. The rivet die of claim 1, wherein: The bottom of the sliding block (5) is provided with a plurality of punches (15) for acting on the workpiece.

10. The rivet die of claim 9, wherein: The lower mold part (2) comprises a lower mold assembly (17) and a movable plate (18) movably arranged on the lower mold assembly (17) in an up-down mode, the positioning device (3) is mounted on the movable plate (18), and the upper mold part (1) acts on the movable plate (18) when moving downwards, so that the movable plate (18) drives the punches (15) to move downwards, and then the punches (15) act on the workpiece.

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