Interactive tapered wedge mechanism of repairing and punching die

Abstract

The utility model relates to the technical field of trimming and punching devices, in particular to an interactive wedge mechanism of a trimming and punching die, which comprises an upper die piece, a lower die piece and a lower die piece, the lower mold piece comprises a lower mold casting, two guide sliding rails are slidably connected to the bottom of the lower mold casting in a left-right limiting mode through second limiting sliding grooves, inclined wedge sliding blocks are fixedly connected to the tops of the two guide sliding rails, inclined face parts are arranged on the sides, close to each other, of the two inclined wedge sliding blocks, and the wedge-shaped body is located between the two inclined wedge sliding blocks; and the two inclined surfaces of the wedge-shaped body can be synchronously matched with the inclined surface parts of the two inclined wedge sliding blocks. According to the device, the contours punched at the same positions of the two sides of the workpiece at one time are completely synchronous, and the positions are accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a trimming device technical field especially relates to trimming die interactive wedge mechanism. BACKGROUND

[0002] The existing trimming structure is a forming processing method that relies on a press and a die to exert an external force on a plate, a strip, a pipe and a profile, so that plastic deformation or separation is generated, thereby obtaining a workpiece (stamped part) with a required shape and size. A wedge mechanism is often used in the stamping device. The current wedge trimming is limited to single-side fine trimming. If the same positions on both sides of the workpiece are single-trimmed, the profiles cannot be completely synchronized, and the position degree is deviated.

[0003] Therefore, the trimming die interactive wedge mechanism is designed to completely synchronize the profiles of the same positions on both sides of the workpiece that are single-trimmed, and the positions are accurate. UTILITY MODEL CONTENTS

[0004] The utility model wants to solve the technical problem of overcoming the defects of the prior art. The trimming die interactive wedge mechanism is proposed to completely synchronize the profiles of the same positions on both sides of the workpiece that are single-trimmed, and the positions are accurate.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a trimming die interactive wedge mechanism, which comprises:

[0006] An upper die set comprises an upper die driving plate and a wedge-shaped body installed at the bottom of the upper die driving plate, and the two side slopes of the wedge-shaped body are symmetrically arranged;

[0007] A lower die set comprises a lower die casting, two guide sliding rails are connected to the lower die casting through a second limiting sliding groove on the left and right sides of the bottom of the lower die casting, and a wedge sliding block is fixedly connected to the top of each guide sliding rail. The side of each wedge sliding block close to each other has a slope part. The wedge-shaped body is located between the two wedge sliding blocks, and the two slopes of the wedge-shaped body can be synchronized with the slope parts of the two wedge sliding blocks. The two wedge sliding blocks are used to make the two wedge sliding blocks move away from each other, and a trimming head is installed on the side of each wedge sliding block away from each other.

[0008] A profile fixing piece is installed on the lower die casting and used to install the workpiece at the same positions on both sides of the profile fixing piece away from each other on the side of each trimming head, so that the two trimming heads can perform synchronous trimming operation on the same positions on both sides of the workpiece.

[0009] Further, a nitrogen gas spring is fixedly installed in the lower die casting, an elastic expansion end of the nitrogen gas spring is fixedly connected with a connecting plate, and the connecting plate is fixedly connected with the guide sliding rail.

[0010] Further, one side of the inclined wedge away from the inclined surface part is fixedly installed with a trimming head mounting plate, and the trimming head mounting plate is fixedly installed with a trimming head.

[0011] Further, the top of the upper die driving plate is fixedly installed with a hydraulic cylinder.

[0012] Further, the profile fixing part comprises two first lateral pressing plates, and the two first lateral pressing plates are arranged on the left and right sides of the lower die casting.

[0013] Further, the profile fixing part further comprises four second longitudinal pressing plates, and each two second longitudinal pressing plates are arranged on the left and right sides of the lower die casting.

[0014] Further, the stabilizing part comprises a threaded rod and a limiting guide rod, the threaded rod is rotationally connected to the first lateral pressing plate or the second longitudinal pressing plate in a limiting mode, the limiting guide rod is fixedly installed on the first lateral pressing plate or the second longitudinal pressing plate, the limiting guide rod is slidingly connected to a first limiting sliding groove on the lower die casting in a limiting mode, the threaded rod is threadedly connected to a threaded groove on the lower die casting, and a rotating wheel is fixedly installed on the position of the threaded rod outside the lower die casting.

[0015] Compared with the prior art, the beneficial effects of the utility model include:

[0016] The device can completely synchronize the profiles of the workpiece trimmed at the same position on both sides at a time, and the position is accurate.

[0017] The device can fix various types of workpieces.

[0018] The improved interactive inclined wedge can effectively avoid the problems of machining deviation and deviation tolerance caused by one-side trimming, the nitrogen cylinder spring facilitates the constant elastic pressure and delay action of the inclined wedge, improves the return force, reduces the wear of the trimming head and the guide rail in work, prolongs the service life of the inclined wedge, and simultaneously, the guide rail, the inclined wedge block and the wedge-shaped body are made of nodular cast iron, have high comprehensive performance, good wear resistance and damping performance, and good casting process performance. BRIEF DESCRIPTION OF DRAWINGS

[0019] The disclosed content of the utility model is explained with reference to the drawings. It should be understood that the drawings are only for illustrative purposes, and are not intended to limit the protection scope of the utility model. In the drawings, the same reference signs are used to refer to the same parts. Among them:

[0020] Figure 1 It is a front structure schematic view of the utility model;

[0021] Figure 2 It is a structure schematic view of the sectional lower mold casting of the utility model;

[0022] Figure 3 It is a structure schematic view of the sectional lower mold casting of the utility model;

[0023] Figure 4 It is a structure schematic view of the sectional lower mold casting of the utility model; Figure 2 It is an enlarged structure schematic view of A of the sectional lower mold casting of the utility model;

[0024] Figure 5 It is an enlarged structure schematic view of B of the sectional lower mold casting of the utility model; Figure 2 It is an enlarged structure schematic view of C of the sectional lower mold casting of the utility model;

[0025] Figure 6 It is an enlarged structure schematic view of C of the sectional lower mold casting of the utility model; Figure 3 It is an enlarged structure schematic view of C of the sectional lower mold casting of the utility model.

[0026] Marked number in drawing: 1, lower mold casting; 2, upper mold driving plate; 3, wedge-shaped body; 4, hydraulic cylinder; 5, rotating wheel; 6, threaded rod; 7, first transverse pressing plate; 8, second longitudinal pressing plate; 9, first limiting sliding groove; 10, threaded groove; 11, trimming punch mounting plate; 12, trimming punch; 13, inclined wedge sliding block; 14, guide sliding rail; 15, nitrogen gas spring; 16, connecting plate; 17, inclined surface part; 18, second limiting sliding groove; 19, limiting guide rod. Specific implementation

[0027] It is easy to understand that according to the technical scheme of the utility model, a plurality of structure modes and implementation modes that can be replaced with each other can be proposed by the general technical personnel in the field without changing the essential spirit of the utility model. Therefore, the following specific implementation and the drawing are only exemplary description to the technical scheme of the utility model, and should not be regarded as the whole of the utility model or regarded as the limitation or restriction to the technical scheme of the utility model.

[0028] Embodiment 1

[0029] Key reference Figures 1-2 , Figures 4-6 The device mainly includes lower mold casting 1, upper mold driving plate 2, wedge-shaped body 3, hydraulic cylinder 4, inclined wedge sliding block 13.

[0030] The shape of wedge-shaped body 3 is that a cuboid is provided with inclined surface on left and right sides, and the two inclined surfaces are symmetrically arranged, and the inclined surface extends outward from bottom to top.

[0031] The bottom of upper mold driving plate 2 is fixedly installed with wedge-shaped body 3.

[0032] The telescopic end of the hydraulic cylinder 4 is fixedly connected to the top of the upper die driving plate 2.

[0033] The lower die casting 1 is in the form of an open-top box.

[0034] The inner bottom of the lower die casting 1 is slidably connected with two guide rails 14 through the left and right limiting sliding grooves 18, the top of the two guide rails 14 is fixedly connected with two inclined wedge blocks 13, the side of the two inclined wedge blocks 13 close to each other is provided with an inclined surface 17, the wedge-shaped body 3 is located between the two inclined wedge blocks 13, and the two inclined surfaces of the wedge-shaped body 3 can be synchronously matched with the inclined surface 17 of the two inclined wedge blocks 13, so as to make the two inclined wedge blocks 13 synchronously move away from each other, the side of the two inclined wedge blocks 13 away from each other is provided with a trimming punch mounting plate 11, and the side of the two trimming punch mounting plates 11 away from each other is fixedly provided with a trimming punch 12.

[0035] At this time, the workpiece in the form of a Z-shaped or frame-shaped is placed on the lower die casting 1 and fixed. At this time, the same positions on the two sides of the workpiece in the form of a Z-shaped or frame-shaped are at the same distance from the two trimming punches 12, and the hydraulic cylinder 4 is started at this time to make the wedge-shaped body 3 press against the inclined surface 17 of the two inclined wedge blocks 13, so that the two trimming punches 12 stamp the same positions on the two sides of the workpiece in the form of a Z-shaped or frame-shaped, and the two profiles trimmed at a time are completely synchronous.

[0036] Embodiment 2

[0037] In this embodiment, on the basis of embodiment 1, technical means for keeping the workpiece in the form of a Z-shaped or frame-shaped in a stable state is added.

[0038] This embodiment mainly includes two first transverse pressing plates 7 and four second longitudinal pressing plates 8.

[0039] Key reference Figure 3 and Figure 4 The two first transverse pressing plates 7 are arranged on the left and right sides of the lower die casting 1, and every two second longitudinal pressing plates 8 are arranged on the left and right sides of the lower die casting 1, and the two second longitudinal pressing plates 8 arranged on one side are arranged on the front and back of one side of the lower die casting 1.

[0040] The first transverse pressing plate 7 or the second longitudinal pressing plate 8 is provided with a threaded rod 6 rotatably connected thereon, and a limiting guide rod 19 is fixedly arranged on the first transverse pressing plate 7 or the second longitudinal pressing plate 8, the limiting guide rod 19 is slidably connected in a first limiting sliding groove 9 on the lower die casting 1, the threaded rod 6 is threadedly connected in a threaded groove 10 on the lower die casting 1, and a rotating wheel 5 is fixedly arranged on the position of the threaded rod 6 outside the lower die casting 1.

[0041] The other structures of this embodiment are the same as those of embodiment 1.

[0042] Embodiment 3

[0043] In this embodiment, on the basis of embodiment 2, the technical means that makes the device can stable and safe operation when stamping is added.

[0044] This embodiment mainly includes nitrogen spring 15, connecting plate 16.

[0045] Focus on Figure 5 The lower die casting 1 is fixedly provided with nitrogen spring 15, and the elastic expansion end of the nitrogen spring 15 is fixedly connected with connecting plate 16, and the connecting plate 16 is fixedly connected with the guide slide rail 14.

[0046] The materials of the wedge body 3, the inclined wedge sliding block 13 and the guide slide rail 14 are all nodular cast iron, which has the characteristics of high comprehensive performance, good wear resistance and damping resistance, and good casting process performance, thereby further reducing the wear of the wedge body 3, the inclined wedge sliding block 13 and the guide slide rail 14 in work.

[0047] The other structures of this embodiment are the same as those of embodiment 2.

[0048] The first transverse pressing plate 7 is provided with an auxiliary groove for assisting in trimming.

[0049] In the specific implementation,

[0050] Firstly, the workpiece in the shape of a frame or a box is placed on the inner bottom of the lower die casting 1, and at this time, the workpiece in the shape of a frame or a box is placed in the preset position by tightening the rotating wheels 5, that is, the same positions on both sides of the workpiece are kept the same distance from the two trimming heads 12.

[0051] The hydraulic cylinder 4 is started to make the wedge body 3 move downward, and the inclined surfaces on both sides of the wedge body 3 are in contact with the inclined surface parts 17 of the two inclined wedge sliding blocks 13 to be extruded, so that the two inclined wedge sliding blocks 13 are away from each other, and at this time, the two trimming heads 12 simultaneously trim the same positions on both sides of the workpiece.

[0052] After trimming, the nitrogen spring 15 returns to the initial position for the next trimming operation.

[0053] The technical scope of the utility model is not limited to the content in the above description, and those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical thought of the utility model, and these deformations and modifications should all belong to the protection scope of the utility model.

Claims

1. A die trimmer interacting cam mechanism characterized by, The utility model relates to a double-sided synchronous trimming die for profiled material, which comprises an upper die and a lower die. The upper die comprises an upper die driving plate (2) and a wedge-shaped body (3) installed at the bottom of the upper die driving plate (2), and the two side slopes of the wedge-shaped body (3) are symmetrically arranged. The lower die comprises a lower die casting (1), two guide sliding rails (14) are connected to the bottom of the lower die casting (1) through the left and right limiting sliding grooves (18), the top of the two guide sliding rails (14) is fixedly connected with two inclined wedge sliding blocks (13), the side of the two inclined wedge sliding blocks (13) close to each other is provided with an inclined surface part (17), the wedge-shaped body (3) is located between the two inclined wedge sliding blocks (13), and the two side slopes of the wedge-shaped body (3) can be synchronously matched with the inclined surface parts (17) of the two inclined wedge sliding blocks (13) to make the two inclined wedge sliding blocks (13) synchronously move away from each other, and the side of the two inclined wedge sliding blocks (13) far away from each other is provided with two trimming heads (12). The profiled material fixing part is installed on the lower die casting (1) to fix the workpiece at the same position on the two sides of the two trimming heads (12) far away from each other, so that the two trimming heads (12) can synchronously trim the same position on the two sides of the workpiece.

2. The die trimmer interacting cam mechanism according to claim 1, wherein, The nitrogen gas spring (15) is fixedly installed in the lower die casting (1), the elastic expansion end of the nitrogen gas spring (15) is fixedly connected with a connecting plate (16), and the connecting plate (16) is fixedly connected with the guide sliding rail (14).

3. The die trimmer interacting cam mechanism according to claim 1, wherein, The side of the inclined wedge sliding block (13) far away from the inclined surface part (17) is fixedly installed with a trimming head mounting plate (11), and the trimming head (12) is fixedly installed on the trimming head mounting plate (11).

4. The die trimmer interacting cam mechanism according to claim 1, wherein, The top of the upper die driving plate (2) is fixedly installed with a hydraulic cylinder (4).

5. The die trimmer interacting cam mechanism according to claim 1, wherein, The profiled material fixing part comprises two first transverse pressing plates (7), the two first transverse pressing plates (7) are arranged on the left and right sides of the lower die casting (1), the lower die casting (1) is provided with a stabilizing part for keeping the first transverse pressing plate (7) stable, and the two sides of the workpiece are fixed.

6. The die trimmer interacting cam mechanism according to claim 5, wherein, The profiled material fixing part further comprises four second longitudinal pressing plates (8), every two second longitudinal pressing plates (8) are arranged on the left and right sides of the lower die casting (1), and the two second longitudinal pressing plates (8) arranged on one side are arranged on the front and back of one side of the lower die casting (1), the lower die casting (1) is provided with a stabilizing part for keeping the second longitudinal pressing plate (8) stable, and the front and back of the workpiece are fixed.

7. The die trimmer interacting cam mechanism according to claim 6, wherein The stabilizing part comprises a threaded rod (6) and a limiting guide rod (19), the threaded rod (6) is rotatably connected to the first transverse pressing plate (7) or the second longitudinal pressing plate (8), the limiting guide rod (19) is fixedly installed on the first transverse pressing plate (7) or the second longitudinal pressing plate (8), the limiting guide rod (19) is limitingly and slidably connected in the first limiting sliding groove (9) on the lower die casting (1), the threaded rod (6) is screwedly connected in the threaded groove (10) on the lower die casting (1), and the part of the threaded rod (6) arranged outside the lower die casting (1) is fixedly installed with a rotating wheel (5).

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