CN213033436U - Double-camber bumper shaping stamping die - Google Patents

Abstract

The utility model discloses a double-camber bumper shaping stamping die, which comprises a lower die, a movable shaping block and an upper die, wherein the lower die comprises a lower die holder, a female die shaping block and a fixed shaping block; the movable shaping block is arranged at the top of the lower die base in a sliding manner and can slide along the direction vertical to the extending direction of the female die shaping block relative to the lower die base; the upper die comprises a male die forming block which is arranged corresponding to the female die forming block, the upper die can be pressed with the lower die to drive the male die forming block to be pressed with the female die forming block, the movable shaping block is driven to slide to be close to the female die forming block, the shaping bumper can be evenly extruded in two directions, the consistency of the bumper is guaranteed, the shaping precision is guaranteed, the product quality and the processing efficiency are improved, and the practicability is high.

Description

Double-camber bumper shaping stamping die

Technical Field

The utility model belongs to the technical field of stamping die, especially, relate to a double arc degree bumper plastic stamping die.

Background

The bumper of the automobile is a main safety component which plays a role in protecting passengers and an automobile body when the automobile collides, and the structural design of the bumper not only needs to consider the safety performance, but also needs to consider the structures of other parts around the bumper and the overall appearance design of the automobile. Various automobile bumpers on the market are designed into a bent shape for matching with the shapes of an engine room cover and a front skin, the forming process commonly adopted in the production process is a stamping and bending forming process, a rigid integral bending die is adopted in the stamping and bending forming process, and the phenomenon of resilience of a bent workpiece can occur after pressure is unloaded. In order to control the springback, the mould trimming and shaping are needed, the existing shaping mould can only carry out shaping in one direction generally, and when the shaping mould carries out shaping in the other direction for the second time, the precision of the shaping for the first time is damaged. Therefore, a shaping mold capable of trimming the mold in two directions simultaneously is needed to ensure the shaping precision, improve the consistency of products and improve the quality of the products.

The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model aims at providing a double arc degree bumper plastic stamping die can be at two orientation plastic bumpers, makes the bumper shape unanimous that produces, and stability is high, keeps the product uniformity, improves the product quality, improves machining efficiency, and the practicality is strong.

In order to achieve the purpose, the utility model provides a double-radian bumper plastic stamping die which is characterized in that, the double-radian bumper plastic stamping die comprises a lower die, a movable shaping block and an upper die, the lower die comprises a lower die holder, a female die shaping block and a fixed shaping block, the female die shaping block is fixedly arranged at the top of the lower die holder along the length direction of the lower die holder, the female die shaping block is used for placing a bumper, an end opening of the bumper is positioned at the end part of the female die shaping block, and the two fixed shaping blocks are fixedly arranged at the top of the lower die holder and are respectively clung to the inward bending sides of the two end parts of the female die shaping block; the movable shaping blocks are arranged at the top of the lower die holder in a sliding manner, each movable shaping block comprises a plurality of inner arc movable shaping blocks which are arranged at intervals along the length direction of the female die shaping blocks and at the inner bending side of the female die shaping block between the two fixed shaping blocks, and a plurality of outer arc movable shaping blocks which are opposite to the fixed shaping blocks or the inner arc movable shaping blocks and are arranged at the outer bending side of the female die shaping block, and the movable shaping blocks can slide relative to the lower die holder along the direction vertical to the extension direction of the female die shaping blocks; the upper die comprises a male die forming block which is arranged corresponding to the female die forming block, the upper die can be pressed with the lower die to drive the male die forming block and the female die forming block to be pressed and shaped so as to extrude and shape the upper side and the lower side of the bumper, meanwhile, the movable shaping block slides to be close to the female die forming block, and the outer arc movable shaping block is matched with the inner arc movable shaping block or the fixed shaping block to extrude and shape the inner curved side and the outer curved side of the bumper.

In one example, the lower die further comprises a slider seat, the slider seat is fixedly arranged at the top of the lower die seat corresponding to the movable shaping block, a horizontal sliding groove extending towards the female die shaping block is formed in the top of the slider seat, and the movable shaping block is arranged in the horizontal sliding groove in a sliding manner.

In one example, the side of the movable shaping block facing away from the female die forming block has a guide slope, the upper side of the guide slope is inclined towards the female die forming block relative to the lower side; the upper die further comprises a cutter inserting block which is arranged corresponding to the movable shaping block, the cutter inserting block is provided with a matching inclined plane matched with the guide inclined plane, the upper die is pressed downwards to the lower die in a pressing mode, the matching inclined plane of the cutter inserting block can be driven to be in matching sliding contact with the guide inclined plane, and the movable shaping block is driven to perform sliding motion relative to the lower die base in an extrusion mode.

In one example, a sliding hook is fixedly arranged on one side surface of the movable shaping block adjacent to the guide inclined surface, the sliding hook extends along the sliding direction of the movable shaping block, and the free end of the sliding hook protrudes out of the guide inclined surface and is provided with a hook body protruding towards one side of the guide inclined surface; the slotting tool block is provided with a sliding hook groove corresponding to the hook body, the extending direction of the sliding hook groove is parallel to the guide inclined plane, the bottom of the sliding hook groove is provided with an opening, and the hook body can be matched with and slidably arranged in the sliding hook groove; the upper die moves upwards to drive the slotting tool block to move upwards, the hook body is pulled by the hook groove to slide along the hook groove, the hook body is pulled by the hook body to drive the movable shaping block to slide away from the female die shaping block, and the hook body can be separated from the hook groove through the opening of the hook groove.

In one example, the double-radian bumper shaping and stamping die further comprises supporting mechanisms, the two supporting mechanisms are arranged at two ends of the female die forming block along the length direction, each supporting mechanism comprises a supporting piece and a supporting frame, the cross section shape and the size of each supporting piece are matched with those of an end opening of the bumper, the supporting frame is arranged at the top of the lower die holder in a sliding mode, the supporting pieces are arranged on the supporting frames and are just opposite to the end portions of the female die forming block, and the supporting frames can be close to or far away from the female die forming block relative to the lower die holder in a sliding mode so as to drive the supporting pieces to stretch into or pull out the end openings of the bumper.

In one example, the support member comprises a wedge-shaped block and a support block, wherein wedge-shaped block inclined surfaces are symmetrically arranged on the upper side and the lower side of the wedge-shaped block, and the wedge-shaped block inclined surfaces incline towards the female die forming block; two the supporting shoe symmetry set up in the upper and lower both sides of wedge to can for the support frame slides along vertical direction, the supporting shoe have with the supporting shoe inclined plane of wedge inclined plane looks adaptation, the wedge can move towards the horizontal translation motion of die shaping piece drives the wedge inclined plane cooperatees the contact and extrudees the supporting shoe inclined plane is kept away from the motion about the drive two the supporting shoe.

In one example, the lower die further comprises positioning blocks, the two positioning blocks are respectively fixedly arranged at the tops of two ends of the female die forming block in the length direction and are close to the fixed shaping block, the positioning blocks are provided with bumper positioning surfaces which face the fixed shaping block and are matched with the end surface shape of the bumper, and the positioning blocks and the fixed shaping block can be matched with each other to clamp and position the end part of the bumper; the positioning block is provided with a through positioning hole along the extending direction of the female die forming block, the shape and the size of the positioning hole are matched with the shape and the size of an end opening of the bumper, and the supporting piece can penetrate through the positioning hole to limit the translational motion direction of the supporting piece.

In one example, the opposite two sides of the wedge block, which are adjacent to the inclined plane of the wedge block and perpendicular to the length direction, are convexly provided with guide sliding ribs extending horizontally along the length direction, the inner side of the positioning hole is correspondingly provided with a guide sliding groove, and the guide sliding ribs are matched and slidably arranged in the guide sliding groove so as to limit the translational motion direction of the wedge block.

In one example, the lower die further comprises guide rails, the two groups of guide rails are arranged at the top of the lower die holder and are respectively positioned at the outer sides of two ends of the female die forming block, the guide rails extend along the extending direction of the end part of the female die forming block, and the supporting mechanism is slidably supported on the guide rails through the supporting frame.

In one example, the outer arc movable shaping block corresponding to the fixed shaping block is provided with a marking printing plate, the marking printing plate is embedded and arranged on one side, close to the female die forming block, of the outer arc movable shaping block, the outer side surface of the marking printing plate is flush with the outer side surface of the outer arc movable shaping block, and when the bumper is extruded by the outer arc movable shaping block, the marking printing plate can mark the bumper at the same time.

Through the utility model provides a double arc degree bumper plastic stamping die can bring following beneficial effect:

1. through activity shaping block and fixed shaping block and die shaping block and terrace die shaping block mutually supporting, can evenly extrude the plastic bumper in two directions, the different sides of plastic bumper perpendicular to length direction avoid many times plastic to repair the mould simultaneously, make the bumper shape unanimous that produces, stability is high, guarantees the plastic precision, improves the product uniformity, improves the product quality, improves machining efficiency, and the practicality is strong.

2. The movable shaping block slides in a horizontal sliding groove in a translational mode, the movable shaping block stably moves towards the bumper and is not prone to shaking, the guiding limiting effect is good, the movable shaping block applies pressure to the bumper and is even and stable, the shaping effect is improved, the product consistency is improved, the product quality is guaranteed, and the practicability is high.

3. The slotting tool block follows the synchronous motion of the upper die, the movable shaping block is extruded downwards to move towards the female die shaping block so as to finish the shaping in the horizontal direction, the female die shaping block and the male die shaping block are driven by the upper die to shape the bumper in the vertical direction, the shaping in two different directions is driven by the upper die, the shaping in the two directions can be synchronously performed, the shaping effect can be guaranteed, the product consistency is guaranteed, the defective rate is reduced, the product quality is guaranteed, and the practicability is high.

4. The sliding hook and the sliding groove are matched to pull the sliding shaping block to slide when the upper die goes upwards to keep away from the female die shaping block, so that a bumper can be taken out conveniently, the bottom of the sliding groove is provided with an opening, the sliding groove is automatically separated from the hook body conveniently, manual operation is reduced, the automation degree of the die is improved, the processing efficiency is improved, the production cost is reduced, and the practicability is high.

5. The supporting mechanism is used for supporting the opening of the end part of the bumper, can effectively prevent the end part of the bumper from collapsing, can improve the shaping effect of the end part of the bumper, improves the consistency of products, reduces the defective rate, ensures the quality of the products and has strong practicability.

6. The wedge can extrude the drive supporting shoe and keep away from top to bottom in order to support the upper and lower inside wall of bumper tip, prevents that bumper tip collapse from contracting, can further guarantee the ascending plastic effect of the vertical side of bumper tip, reduces the defective percentage, guarantees product quality, reduction in production cost, and the practicality is strong.

7. The locating piece can cooperate the centre gripping bumper tip with fixed shaping piece, guarantees that the bumper position places the accuracy, makes things convenient for swiftly putting into of bumper, improves machining efficiency, and the locating hole can spacing support piece's direction of motion, can guarantee that support piece accuracy sends into the tip opening of bumper, guarantees product quality, reduces the defective percentage, reduction in production cost, and the practicality is strong.

8. The movable shaping block extrudes the bumper to mark, so that the bumper is prevented from being deformed in the marking process, the product quality is ensured, the processing procedures of the bumper are reduced, the production cost is reduced, and the practicability is high.

Drawings

The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:

fig. 1 is a schematic view of a double-camber bumper shaping and stamping die according to the present invention;

FIG. 2 is a schematic view of the lower mold of the present invention;

FIG. 3 is a schematic view of the upper mold of the present invention;

fig. 4 is a schematic perspective view of the movable shaping block of the present invention;

fig. 5 is a schematic perspective view of the slotting tool block of the present invention;

fig. 6 is a schematic perspective view of the supporting mechanism of the present invention;

fig. 7 is a schematic perspective view of the supporting member of the present invention;

fig. 8 is a schematic perspective view of the positioning block of the present invention;

fig. 9 is a schematic perspective view of the outer arc movable shaping block with the marking plate of the present invention.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. In the description herein, references to the description of the terms "an aspect," "some aspects," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more aspects or examples.

As shown in fig. 1 to 9, an embodiment of the present invention provides a double-curvature bumper shaping stamping die 100, which includes a lower die 1, a movable shaping block 2 and an upper die 3; the lower die 1 comprises a lower die seat 11, a female die forming block 12 and two fixing shaping blocks 13, wherein the female die forming block 12 is fixedly arranged at the top of the lower die seat 11 along the length direction of the lower die seat 11, the female die forming block 12 is used for placing a bumper 200, an opening at the end part of the bumper 200 is positioned at the end part of the female die forming block 12, and the two fixing shaping blocks 13 are fixedly arranged at the top of the lower die seat 11 and are respectively clung to the inward bending sides of the two end parts of the female die forming block 12; the movable shaping block 2 is arranged at the top of the lower die holder 11 in a sliding manner, the movable shaping block 2 comprises a plurality of inner arc movable shaping blocks 201 which are arranged at intervals along the length direction of the female die forming block 12 at the inner bending side of the female die forming block 12 between the two fixed shaping blocks 13, and a plurality of outer arc movable shaping blocks 202 which are arranged at the outer bending side of the female die forming block 12 opposite to the fixed shaping blocks 13 or the inner arc movable shaping blocks 201, and the movable shaping block 2 can slide relative to the lower die holder 11 along the direction vertical to the extending direction of the female die forming block 12; go up mould 3 and include the terrace die shaping piece 31 with the corresponding setting of die shaping piece 12, go up mould 3 can with 1 pressfitting of lower mould, drive terrace die shaping piece 31 and the pressfitting of die shaping piece 12 in order to extrude the upper and lower side of plastic bumper 200, the movable shaping piece 2 slides simultaneously and is close to die shaping piece 12, outer arc movable shaping piece 202 and inner arc movable shaping piece 201 or fixed shaping piece 13 cooperation extrusion plastic bumper 200's interior outer side of bending. Through activity shaping piece 2 and fixed shaping piece 13 and die shaping piece 12 and terrace die shaping piece 31 mutually supporting, can evenly extrude plastic bumper 200 in two directions, the different sides of plastic bumper 200 perpendicular to length direction avoid many times the plastic to repair the mould simultaneously, make the bumper 200 shape of producing unanimous, stability is high, guarantees the plastic precision, improves the product uniformity, improves the product quality, improves machining efficiency, and the practicality is strong.

Specifically, lower mould 1 still includes slider seat 14, and slider seat 14 corresponds to movable shaping block 2 and fixedly sets up in the top of die holder 11, and horizontal spout 141 towards the extension of die shaping block 12 is seted up at slider seat 14 top, and movable shaping block 2 slides and sets up in horizontal spout 141. The movable shaping block 2 slides in the horizontal sliding groove 141 in a translational manner, the movable shaping block 2 stably moves towards the bumper 200 and is not prone to shaking, the guiding limiting effect is good, the movable shaping block 2 applies pressure to the bumper 200 and is even and stable, the shaping effect is improved, the product consistency is improved, the product quality is guaranteed, and the practicability is high.

In a specific embodiment, a ball is further disposed between the contact surfaces of the movable shaping block 2 and the horizontal sliding groove 141 to reduce contact friction between the movable shaping block 2 and the horizontal sliding groove 141.

Specifically, one side of the movable shaping block 2, which is far away from the female die forming block 12, is provided with a guide inclined surface 21, and the upper side of the guide inclined surface 21 is inclined towards the female die forming block 12 relative to the lower side; the upper die 3 further comprises a slotting tool block 32 which is arranged corresponding to the movable shaping block 2, the slotting tool block 32 is provided with a matching inclined surface 321 which is matched with the guide inclined surface 21, the upper die 3 moves downwards to press the lower die 1, the matching inclined surface 321 of the slotting tool block 32 can be driven to be matched with the guide inclined surface 21 to be in sliding contact, and the movable shaping block 2 is driven to perform sliding motion relative to the lower die base 11 through extrusion. The slotting tool piece 32 follows last mould 3 synchronous motion, move in order to accomplish the plastic of horizontal direction with extrusion activity shaping piece 2 down towards die shaping piece 12, die shaping piece 12 is also driven by last mould 3 with the plastic of punch shaping piece 31 to the vertical direction of bumper 200 simultaneously, the plastic of two not equidirectional is driven by last mould 3, can guarantee that the plastic in two directions goes on in step, be favorable to guaranteeing the plastic effect, guarantee the product uniformity, reduce the defective percentage, guarantee product quality, therefore, the clothes hanger is strong in practicability.

In one embodiment, a pressing roller may be additionally disposed on the slotting tool block 32 to reduce the abrasion of the movable shaping block 2, and the friction resistance and shaping pressure can be reduced.

Specifically, a sliding hook 22 is fixedly arranged on one side surface of the movable shaping block 2 adjacent to the guide inclined surface 21, the sliding hook 22 extends along the sliding direction of the movable shaping block 2, and the free end of the sliding hook 22 protrudes out of the guide inclined surface 21 and is provided with a hook body 221 protruding towards one side of the guide inclined surface 21; the cutter inserting block 32 is provided with a sliding hook groove 322 corresponding to the hook body, the extending direction of the sliding hook groove 322 is parallel to the guide inclined plane 21, the bottom of the sliding hook groove 322 is provided with an opening, and the hook body 221 can be matched with and slidably arranged in the sliding hook groove 322; go up mould 3 and go up and drive broach piece 32 and move up, smooth collude groove 322 pulling colludes body 221 and slides along smooth collude groove 322, colludes body 221 pulling smooth collude 22 and drive movable shaping block 2 and slide and keep away from die shaping block 12, colludes body 221 and can deviate from smooth collude groove 322 by the opening of smooth collude groove 322. Smooth colluding 22 and smooth slot 322 cooperation can be gone up mould 3 and the time pulling slip shaping piece 2 slides and keeps away from die shaping piece 12, makes things convenient for bumper 200 to take out, and smooth slot 322 bottom has the opening, conveniently colludes body 221 and breaks away from smooth slot 322 automatically, reduces manual operation, improves mould degree of automation, improves machining efficiency, reduction in production cost, and the practicality is strong.

Specifically, the double-curvature bumper shaping and stamping die 100 further comprises a supporting mechanism 4, the two supporting mechanisms 4 are arranged at two ends of the female die forming block 12 along the length direction, the supporting mechanism 4 comprises a supporting piece 41 and a supporting frame 42, the cross section shape and the size of the supporting piece 41 are matched with those of an end opening of the bumper 200, the supporting frame 42 is arranged at the top of the lower die base 11 in a sliding mode, the supporting piece 41 is arranged on the supporting frame 42 and is opposite to the end portion of the female die forming block 12, and the supporting frame 42 can slide relative to the lower die base 11 to be close to or far away from the female die forming block 12 so as to drive the supporting piece 41 to stretch into or draw. The supporting mechanism 4 is used for supporting the end opening of the bumper 200, can effectively prevent the end collapse of the bumper 200, can improve the shaping effect of the end of the bumper 200, improves the consistency of products, reduces the defective rate, ensures the quality of the products, and has strong practicability.

Specifically, the supporting member 41 includes a wedge block 411 and a supporting block 412, the upper side and the lower side of the wedge block 411 are symmetrically provided with wedge block inclined surfaces, and the wedge block inclined surfaces are inclined towards the female die forming block 12; the two supporting blocks 412 are symmetrically arranged on the upper side and the lower side of the wedge-shaped block 411 and can slide in the vertical direction relative to the supporting frame 42, the supporting blocks 412 are provided with supporting block inclined planes matched with the wedge-shaped block inclined planes, and the wedge-shaped block 411 can horizontally move towards the female die forming block 12 to drive the wedge-shaped block inclined planes to be matched and contacted with each other and extrude the supporting block inclined planes so as to drive the two supporting blocks 412 to move away from each other up and down. Wedge 411 can extrude drive supporting shoe 412 and keep away from top to bottom in order to support the upper and lower inside wall of bumper 200 tip, prevents that bumper 200 tip from collapsing to contract, can further guarantee the ascending plastic effect of bumper 200 tip vertical side, reduces the defective percentage, guarantees product quality, reduction in production cost, and the practicality is strong.

Specifically, the lower die 1 further comprises positioning blocks 15, the two positioning blocks 15 are respectively fixedly arranged at the tops of two ends of the female die forming block 12 in the length direction and are close to the fixed shaping block 13, the positioning blocks 15 are provided with bumper positioning surfaces 151 facing the fixed shaping block 13 and matched with the end surface shape of the bumper 200, and the positioning blocks 15 and the fixed shaping block 13 can be matched with each other to clamp and position the end part of the bumper 200; the positioning block 15 is further provided with a through positioning hole 152 along the extending direction of the die forming block 12, the shape and size of the positioning hole 152 are matched with the shape and size of the end opening of the bumper 200, and the supporting member 41 can pass through the positioning hole 152 to limit the translational movement direction of the supporting member 41. Locating piece 15 and fixed shaping piece 13 can cooperate centre gripping bumper 200 tip, guarantee that bumper 200 position places the accuracy, make things convenient for swiftly putting into of bumper 200, improve machining efficiency, and the locating hole 152 can spacing support piece 41's direction of motion, can guarantee that support piece 41 accuracy sends into bumper 200's tip opening, guarantees product quality, reduces the defective percentage, reduction in production cost, and the practicality is strong.

Specifically, the opposite two sides of the wedge block 411 adjacent to the inclined plane of the wedge block and perpendicular to the length direction are provided with guide sliding ribs 4111 extending horizontally along the length direction in a protruding manner, the inner side of the positioning hole 152 is correspondingly provided with guide sliding grooves 1521, and the guide sliding ribs 4111 are matched with and arranged in the guide sliding grooves 1521 in a sliding manner so as to limit the translational movement direction of the wedge block 411. The removal of wedge 411 vertical direction is injectd to direction smooth muscle 4111, and cooperation locating hole 152 leads spacingly in coordination to wedge 411, guarantees that wedge 411 sends into bumper 200 tip opening smoothly to guarantee that wedge 411 can extrude drive supporting shoe 412 and keep away from top to bottom, guarantee that the course of working is reliable and stable goes on, guarantee product quality, the practicality is strong.

Specifically, the lower die 1 further includes guide rails 16, two sets of guide rails 16 are disposed on the top of the lower die base 11 and located outside two ends of the female die forming block 12, respectively, the guide rails 16 extend along the extending direction of the end of the female die forming block 12, and the support mechanism 4 is slidably supported on the guide rails 16 through a support frame 42. The supporting frame 42 can move on the guide rail 16 in a translation mode to drive the supporting piece 41 to move stably, so that the supporting piece 41 is accurately sent into the opening in the end portion of the bumper 200, the product quality is guaranteed, the defective rate is reduced, meanwhile, the vibration damage of the supporting mechanism is reduced, the service life of the machine is prolonged, the production cost is reduced, and the practicability is high.

In one embodiment, each set of rails 16 includes two rails 16 arranged in parallel.

Specifically, the outer arc movable shaping block 202 corresponding to the fixed shaping block 13 is provided with a marking plate 2021, the marking plate 2021 is embedded and arranged on one side of the outer arc movable shaping block 202 close to the female die shaping block 12, the outer side surface of the marking plate 2021 is flush with the outer side surface of the outer arc movable shaping block 202, and when the bumper 200 is extruded by the outer arc movable shaping block 202, the marking plate 2021 can mark the bumper 200 at the same time. The movable shaping block 2 extrudes the bumper 200 to mark, so that the deformation of the bumper 200 caused by the marking process is avoided, the product quality is ensured, the processing procedures of the bumper 200 are reduced, the production cost is reduced, and the practicability is high.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a double radian bumper plastic stamping die which characterized in that, double radian bumper plastic stamping die includes:

the lower die comprises a lower die seat, a female die forming block and two fixed shaping blocks, the female die forming block is fixedly arranged at the top of the lower die seat along the length direction of the lower die seat, the female die forming block is used for placing a bumper, an opening at the end part of the bumper is positioned at the end part of the female die forming block, and the two fixed shaping blocks are fixedly arranged at the top of the lower die seat and are respectively tightly attached to the inward bending sides of the two end parts of the female die forming block;

the movable shaping block is arranged at the top of the lower die holder in a sliding manner, the movable shaping block comprises a plurality of inner arc movable shaping blocks which are arranged between the two fixed shaping blocks at intervals along the length direction of the female die shaping block and a plurality of outer arc movable shaping blocks which are opposite to the fixed shaping blocks or the inner arc movable shaping blocks are arranged on the outer bending side of the female die shaping block, and the movable shaping block can slide relative to the lower die holder along the direction vertical to the extension direction of the female die shaping block; and

the upper die comprises a male die forming block which is arranged corresponding to the female die forming block, the upper die can be pressed with the lower die to drive the male die forming block and the female die forming block to be pressed together to extrude and shape the upper side and the lower side of the bumper, meanwhile, the movable shaping block slides to be close to the female die forming block, and the outer arc movable shaping block is matched with the inner arc movable shaping block or the fixed shaping block to extrude and shape the inner and outer curved sides of the bumper.

2. The double-arc-degree bumper shaping and stamping die according to claim 1, wherein the lower die further comprises a slider seat, the slider seat is fixedly arranged at the top of the lower die seat corresponding to the movable shaping block, a horizontal sliding groove extending towards the female die forming block is formed in the top of the slider seat, and the movable shaping block is slidably arranged in the horizontal sliding groove.

3. The double-curvature bumper shaping stamping die of claim 1, wherein one side of the movable shaping block, which faces away from the female die forming block, is provided with a guide inclined surface, and the upper side of the guide inclined surface is inclined towards the female die forming block relative to the lower side; the upper die further comprises a cutter inserting block which is arranged corresponding to the movable shaping block, the cutter inserting block is provided with a matching inclined plane matched with the guide inclined plane, the upper die is pressed downwards to the lower die in a pressing mode, the matching inclined plane of the cutter inserting block can be driven to be in matching sliding contact with the guide inclined plane, and the movable shaping block is driven to perform sliding motion relative to the lower die base in an extrusion mode.

4. The double-radian bumper shaping and stamping die as claimed in claim 3, wherein a sliding hook is fixedly arranged on one side surface of the movable shaping block adjacent to the guide inclined surface, the sliding hook extends along the sliding direction of the movable shaping block, the free end of the sliding hook protrudes out of the guide inclined surface, and the sliding hook is provided with a hook body protruding towards one side of the guide inclined surface; the slotting tool block is provided with a sliding hook groove corresponding to the hook body, the extending direction of the sliding hook groove is parallel to the guide inclined plane, the bottom of the sliding hook groove is provided with an opening, and the hook body can be matched with and slidably arranged in the sliding hook groove;

the upper die moves upwards to drive the slotting tool block to move upwards, the hook body is pulled by the hook groove to slide along the hook groove, the hook body is pulled by the hook body to drive the movable shaping block to slide away from the female die shaping block, and the hook body can be separated from the hook groove through the opening of the hook groove.

5. The double-radian bumper shaping stamping die as claimed in any one of claims 1 to 4, further comprising two supporting mechanisms, wherein the two supporting mechanisms are arranged at two ends of the female die forming block along the length direction, the supporting mechanisms comprise supporting members and supporting frames, the cross-sectional shapes and the sizes of the supporting members are matched with those of end openings of the bumpers, the supporting frames are slidably arranged at the top of the lower die holder, the supporting members are arranged on the supporting frames and face the ends of the female die forming block, and the supporting frames can slide relative to the lower die holder to be close to or far away from the female die forming block so as to drive the supporting members to extend into or withdraw from the end openings of the bumpers.

6. The double-radian bumper shaping and stamping die as claimed in claim 5, wherein the supporting member comprises a wedge block and a supporting block, wedge block inclined surfaces are symmetrically arranged on the upper side and the lower side of the wedge block, and the wedge block inclined surfaces are inclined towards the female die forming block;

two the supporting shoe symmetry set up in the upper and lower both sides of wedge to can for the support frame slides along vertical direction, the supporting shoe have with the supporting shoe inclined plane of wedge inclined plane looks adaptation, the wedge can move towards the horizontal translation motion of die shaping piece drives the wedge inclined plane cooperatees the contact and extrudees the supporting shoe inclined plane is kept away from the motion about the drive two the supporting shoe.

7. The double-arc-degree bumper shaping and stamping die according to claim 6, wherein the lower die further comprises positioning blocks, the two positioning blocks are fixedly arranged at the tops of two ends of the female die forming block in the length direction and are close to the fixed shaping block respectively, the positioning blocks are provided with bumper positioning surfaces facing the fixed shaping block and matched with the end surface shape of the bumper, and the positioning blocks and the fixed shaping block can be matched with each other to clamp and position the end part of the bumper;

the positioning block is provided with a through positioning hole along the extending direction of the female die forming block, the shape and the size of the positioning hole are matched with the shape and the size of an end opening of the bumper, and the supporting piece can penetrate through the positioning hole to limit the translational motion direction of the supporting piece.

8. The double-radian bumper shaping and stamping die as claimed in claim 7, wherein two opposite sides of the wedge block, which are adjacent to the inclined plane of the wedge block and perpendicular to the length direction, are convexly provided with guide sliding ribs extending horizontally along the length direction, the inner sides of the positioning holes are correspondingly provided with guide sliding grooves, and the guide sliding ribs are matched and slidably arranged in the guide sliding grooves so as to limit the translational movement direction of the wedge block.

9. The double-radian bumper shaping and stamping die according to claim 5, wherein the lower die further comprises guide rails, two sets of the guide rails are arranged at the top of the lower die base and located outside two ends of the female die forming block respectively, the guide rails extend along the extending direction of the end portions of the female die forming block, and the supporting mechanism is slidably supported on the guide rails through the supporting frame.

10. The shaping and stamping die for the double-arc bumper according to claim 1, wherein the outer arc movable shaping block corresponding to the fixed shaping block is provided with a marking plate, the marking plate is embedded and arranged on one side of the outer arc movable shaping block close to the female die shaping block, the outer side surface of the marking plate is flush with the outer side surface of the outer arc movable shaping block, and when the bumper is extruded by the outer arc movable shaping block, the marking plate can mark the bumper at the same time.

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