CN218340799U

CN218340799U - Thin-wall pipe stamping forming die

Info

Publication number: CN218340799U
Application number: CN202222841510.4U
Authority: CN
Inventors: 刘思涛
Original assignee: IMPULSE (QINGDAO) HEALTH TECH CO LTD
Current assignee: IMPULSE (QINGDAO) HEALTH TECH CO LTD
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-01-20
Anticipated expiration: 2032-10-27

Abstract

The application provides a thin-wall pipe stamping forming die which comprises an upper die assembly, a die shank arranged on the upper die assembly and a male die arranged at the bottom of the upper die assembly; the pipe fitting device comprises a lower template, wherein a fixed mold core and a sizing block are fixedly mounted on the lower template, the fixed mold core is provided with a first chute, and the sizing block is padded between the fixed mold core and the lower template so as to form a pipe fitting space between the fixed mold core and the lower template; the mold further comprises a movable mold core provided with a second chute, a positioning column vertically and slidably mounted on the fixed mold core and the movable mold core, and an intermediate slide block which is used for sliding along the first chute and the second chute under external thrust and is inserted between the movable mold core and the fixed mold core, wherein the intermediate slide block and the movable mold core are provided with sliding inclined planes which are matched with each other. This application simple operation, high efficiency, the punching press of saving time are effectual, easily get the piece.

Description

Thin-wall pipe stamping forming die

Technical Field

The application relates to the technical field of pipe stamping equipment, in particular to a thin-wall pipe stamping forming die.

Background

In manufacturing, particularly metal manufacturing, it is often necessary to press a pipe material. In the prior art, blanking and blanking (including punching, slotting and end part R arc punching) are mainly used for processing the pipe, and the pipe can be easily drawn out after blanking. However, the pipe press forming device on the market has unsatisfactory forming effect and complicated operation, and the pipe cannot be easily drawn out from the mold core due to deformation after press forming, so that the technical problem that the part is difficult to take out after stamping exists.

SUMMERY OF THE UTILITY MODEL

The application provides a thin wall tubular product stamping forming mould, thin wall tubular product stamping forming is effectual, and the simple operation conveniently gets the piece after the punching press.

The application provides a thin-walled tube punch forming die which comprises an upper die assembly, a die shank arranged at the center of the top of the upper die assembly and a male die arranged at the bottom of the upper die assembly; the pipe fitting mold further comprises a lower template, wherein a fixed mold core and a sizing block are fixedly mounted on the lower template, the fixed mold core is provided with a first chute, and the sizing block is padded between the fixed mold core and the lower template so as to form a pipe fitting space between the fixed mold core and the lower template;

the movable mold core is arranged on the upper portion of the fixed mold core and provided with a second sliding groove, the positioning column is vertically slidably installed on the fixed mold core and the movable mold core, the middle sliding block is used for sliding along the first sliding groove and the second sliding groove under external thrust to be inserted into or separated from the movable mold core and the fixed mold core, and the middle sliding block and the movable mold core are respectively provided with a sliding inclined plane which is matched with each other.

In some embodiments, the upper die assembly includes an upper die plate and a punch retainer fixedly mounted to a bottom portion of the upper die plate.

In some embodiments, the movable die core is provided with a limiting pin for limiting the movement end position of the pipe to be punched.

In some embodiments, at least one pair of guide sleeves is arranged at the bottom of the male die holder, a plurality of guide columns are arranged on the lower template in a one-to-one correspondence manner with the guide sleeves, and each guide sleeve and the male die are arranged at the bottom of the male die holder.

In some embodiments, the two pairs of guide sleeves are respectively arranged at four corners of the punch holder.

In some embodiments, the handle is used for directly or indirectly connecting the side wall of the intermediate sliding block to push the intermediate sliding block to slide along the first sliding groove and the second sliding groove.

In some embodiments, the handle is rotatably mounted on the lower template, a connecting block is mounted on the side wall of the middle sliding block, and a long connecting rod is hinged between the handle and the connecting block.

In some embodiments, the handle is provided with a hand grip portion for engaging with a hand when gripped by the hand.

In some embodiments, the grip portion is provided with a slip-resistant structure.

The application provides a thin wall tubular product stamping forming mould, through two spout slip nimble regulation movable mold core positions about following, installation, top tight and the processing after finishing taking out before the thin wall tubular product of conveniently waiting to process processing. Before machining, the upper die assembly is installed on equipment such as a punch press, the middle sliding block is adjusted to slide out, the movable die core descends along the positioning column, a thin-walled pipe to be machined is sleeved on the movable die core and the fixed die core, the middle sliding block slides in along the sliding chute, the movable die core ascends along the positioning column, and the pipe is tightly pressed; during punching, the positions of the upper die assembly and the lower die assembly need to be adjusted, and after the adjustment is correct, the pipe is subjected to punch forming by using the male die; after the punching press, along the spout with middle slider roll-off, the movable mould core descends along the reference column, treats that the upper surface of movable mould core is less than the lower surface after tubular product warp, just can take tubular product out comparatively easily. This application can carry out the synchronous stamping forming of one or more department to tubular product, through changing movable mold core, can satisfy the punching press demand of multiple shape tubular product, and the punching press is effectual, and the profile is clear to the punching press degree of depth is adjustable. The middle sliding block sliding structure is convenient for the pipe to tightly push and take out parts after processing, is convenient to operate, high in stamping efficiency and easy to take parts, and solves the technical problems that the traditional stamping die is not high in forming rate and inconvenient to take parts during processing.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of a thin-walled tube punch forming die provided in the present application;

FIG. 2 is a cross-sectional view of the intermediate slide of FIG. 1 in a slide-in state;

FIG. 3 is a cross-sectional view of the intermediate slide of FIG. 1 in a slide-out position;

fig. 4 is an exploded view of the lower die plate, the fixed die core, the sizing block, the movable die core and the middle slider in fig. 1.

Wherein, 01-pipe, 1-upper template, 2-terrace die holder, 3-die shank, 4-terrace die, 5-guide bush, 6-lower template, 7-guide pillar, 8-fixed die core, 9-sizing block, 10-movable die core, 11-locating column, 12-middle slide block, 13-spacing pin, 14-handle, 15-long connecting rod, 16-connecting block;

101-a concave die.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 4, fig. 1 is a schematic structural view of a thin-walled tube stamping forming mold provided in the present application; FIG. 2 is a cross-sectional view of the intermediate slide of FIG. 1 in a slide-in state;

FIG. 3 is a cross-sectional view of the intermediate slide of FIG. 1 in a slide-out position; fig. 4 is an exploded view of the lower die plate, the fixed die core, the sizing block, the movable die core and the middle slider in fig. 1.

The application provides a thin-walled tube stamping forming die, is used for various thin-walled tubes that need shaping or press word, including last mould subassembly, die shank 3, terrace die 4, lower bolster 6, fixed mold core 8, parallels 9, activity die core 10, reference column 11 and middle slider 12.

The die shank 3 is arranged at the top of the upper die component and used for being connected with punching equipment such as an external punch press and a hydraulic press, and the die shank 3 can be embedded into the upper die component and can also be connected with the upper die component or welded with the upper die component through a connecting piece in a threaded manner. The die shank 3 is preferably, but not limited to, disposed at the center of the punch holder 2, for example, in the case of tube bending, punching or other reasons causing interference with the punch press, the die shank 3 may be disposed in an eccentric configuration to solve this problem. The male die 4 is mounted at the bottom of the upper die assembly.

In addition, still fixed mold core 8 and parallels 9 are fixed to be installed on the lower bolster 6, and parallels 9 are filled up and are made between fixed mold core 8 and lower bolster 6, pass through the screw fastening between three. The fixed mold core 8 and the sizing block 9 are preferably arranged on one side of the lower template 6, and the length of the fixed mold core 8 is longer than that of the sizing block 9, so that the space between the fixed mold core 8 and the lower template 6 except for the sizing block 9 forms a pipe insertion space, and the height of the space is set according to the wall thickness of a pipe to be punched, so that the pipe to be punched is ensured to be smoothly inserted and separated.

The bottom surface of the fixed mold core 8 is provided with a first pipe fitting surface which is completely matched with the inner wall of the pipe to be punched, the top of the fixed mold core 8 is provided with a first sliding groove, and the first sliding groove is preferably a rectangular section groove and is distributed along the length direction of the fixed mold core 8.

The upper part of the fixed mold core 8 is provided with a movable mold core 10, the bottom of the movable mold core 10 is provided with a second sliding chute, the second sliding chute is opposite to the first sliding chute, and the two sliding chutes form a sliding cavity. Fixed mold core 8 and activity mold core 10 are provided with vertical distribution's reference column installation cavity, set up reference column 11 in the reference column installation cavity, and reference column 11 is equipped with spacing step, and reference column 11 plays the effect of direction and location, when satisfying along reference column installation cavity gliding from top to bottom, can prevent from following deviating from. An intermediate slide block 12 is arranged in a slide cavity formed by the second slide groove and the first slide groove in a sliding mode, and under the action of external thrust, the intermediate slide block 12 can slide along the slide cavity so as to be inserted into the slide groove between the movable mold core 10 and the fixed mold core 8 or be separated from the slide grooves of the two mold cores. The top surface of the middle slide block 12 and the bottom surface of the movable mold core 10 are respectively provided with a sliding inclined surface, the inclination of the two sliding inclined surfaces is the same, and the two sliding inclined surfaces are ensured to be always completely matched in the sliding motion of the middle slide block 12.

This application comprises integrated configuration by movable mold core 10, middle slider 12 and fixed mold core 8, and through the lift removal of the movable mold core 10 of the sliding guide of middle slider 12, the piece is got after the top of the work piece of conveniently treating processing and processing, and the simple operation is high-efficient.

Specifically, the upper die assembly comprises an upper die plate 1 and two male die holding seats 2, the male die holding seats 2 are fixedly mounted at the bottom of the upper die plate 1 and are fixed through a connecting piece, the die shank 3 is arranged in the middle of the upper die plate 1, the number of the male dies 4 is two, and the two male dies 4 are symmetrically arranged at the bottom of the male die holding seats 2.

In a preferred embodiment, at least one pair of guide sleeves 5 are arranged at the bottom of the upper die assembly, guide pillars 7 are arranged on the lower die plate 6, each pair of guide sleeves 5 is arranged at the bottom of the male die holder 2 and is preferably distributed outside the male die 4, a plurality of guide pillars 7 are fixedly arranged on the lower die plate 6, each guide pillar 7 is arranged corresponding to each guide sleeve 5, and the guide pillars 7 are sleeved inside the guide sleeves 5 and can slide up and down along the inner cavity of the guide sleeves 5. When the upper die assembly moves up and down, a guide effect is provided through the matching of the guide sleeve 5 and the guide pillar 7, the upper die assembly and the lower die assembly can be punched without being adjusted, and the stability of the movement track and the accuracy of the movement of the male die 4 during punching are ensured.

Preferably, the number of the guide sleeves 5 is four, and the four guide sleeves 5 are respectively arranged at four corners of the male die holder 2, and correspondingly, the number of the guide posts 7 is four, and the four guide sleeves 5 are respectively arranged corresponding to the guide sleeves 5, and the guide sleeves 5 and the guide posts 7 are ensured to be coaxially distributed. It should be noted that, the specific number of the guide sleeves 5 and the guide posts 7 can be set according to actual requirements, and is not limited herein.

The application provides a stamping forming mould not only is applicable to the stamping forming of the two oval tubular product that show in the picture, can also be applicable to oval pipe, square pipe, rectangular pipe, special-shaped pipe or the tubular product 01 of other specifications. It can be understood that, since it is necessary that the outer contour surfaces of the movable core 10 and the fixed core 8 can be completely attached to the inner wall of the workpiece after the workpiece is tightly pressed, the outer contour shapes of the movable core 10 and the fixed core 8 can be set according to the shape and size of the pipe 01.

Similarly, besides the circular stamping forming surface shown in the figure, the forming hole may also be a forming hole with other shapes such as a rectangle, an ellipse, etc., or a letter, a number, etc. and the like, and it is only necessary to make a corresponding shape when making the die and match the male die 4 with the female die 101 of the movable die core 10, and the specific shape of the stamping forming is not limited herein.

In addition, the number of the male dies 4 is not limited to two shown in the figures, and may be one or more, specifically, the number is set according to the actual situation.

In an embodiment, in order to perform position location on the pipe to be punched in order to facilitate the situation of adopting end surface location when most of the pipes are punched, a limit pin 13 may be disposed on the movable mold core 10, and the limit pin 13 may be disposed at the top of the movable mold core 10 or embedded inside the movable mold core 10. The spacing pin 13 may be one, two or more. The limiting pin 13 is arranged to limit the movement end position of the pipe to be punched. In addition, the method can be used for stamping the pipe without end face positioning under special conditions, and can also be used for post positioning or hole positioning and the like.

In order to facilitate the pushing of the middle slider 12, the handle 14 may be directly or indirectly connected to the side wall of the middle slider 12, and when the handle 14 is directly connected to the middle slider 12, the handle 14 may directly move the middle slider 12, so that the operation is convenient. Besides, the handle 14 and the middle sliding block 12 can be connected through a connecting rod assembly, the handle 14 is rotatably installed on the lower template 6, a connecting block 16 is installed on the side wall of the middle sliding block 12, and a long connecting rod 15 is hinged between the handle 14 and the connecting block 16. When the handle 14 is operated, the handle 14 drives the long connecting rod 15 and the connecting block 16 to enable the middle sliding block 12 to slide in or out, so that the adjusting precision is higher, and more labor is saved.

Specifically, the handle 14 is pulled, the middle sliding block 12 slides out through the long connecting rod 15 and the connecting block 16, the movable mold core 10 descends along the positioning column 11, and at the moment, the pipe 01 is inserted into the position of the limiting pin 13; the handle 14 is pulled again, so that the middle sliding block 12 slides in, the movable die core 10 rises along the positioning column 11, the pipe 01 is tightly extruded, and at the moment, the punch forming operation can be carried out. After the punching press was accomplished, tubular product 01 warp, can't extract, stirs handle 14 once more, makes middle slider 12 roll-off, and movable mould core 10 descends along reference column 11, and movable mould core 10 upper surface is less than the lower surface after tubular product 01 warp this moment, can easily take tubular product 01 out.

In order to conveniently grip the handle 14, a holding part can be arranged on the handle 14, and the holding part is arranged according to ergonomics and is guaranteed to be well attached to human hands, so that the handle 14 is more comfortable to grip, and the handle 14 is more labor-saving to operate.

Further, can hold portion at hand and set up anti-skidding structure, this anti-skidding structure specifically is anti-skidding line, anti-skidding recess or anti-skidding arch to increase and the frictional force between the hand, prevent that the hand from skidding, make handle 14 grip more firmly.

It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The thin-wall pipe stamping forming die provided by the application is described in detail above. The principles and embodiments of the present application are described herein using specific examples, which are only used to help understand the method and its core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. A thin-wall pipe stamping forming die is characterized by comprising an upper die assembly, a die shank (3) arranged at the top of the upper die assembly and a male die (4) arranged at the bottom of the upper die assembly; the pipe fitting mold further comprises a lower template (6), wherein a fixed mold core (8) and a sizing block (9) are fixedly mounted on the lower template (6), the fixed mold core (8) is provided with a first sliding groove, and the sizing block (9) is cushioned between the fixed mold core (8) and the lower template (6) so as to form a pipe fitting space between the fixed mold core (8) and the lower template (6);

still including set up in the upper portion of fixed mold core (8) and be equipped with movable mold core (10) of second spout, vertical slidable mounting in fixed mold core (8) with reference column (11) of movable mold core (10) to and be used for external thrust down along first spout with the second spout slides, in order to insert or deviate from in movable mold core (10) with middle slider (12) between fixed mold core (8), middle slider (12) reach movable mold core (10) respectively are equipped with the inclined plane that slides of looks adaptation.

2. The thin-walled tube punch forming die according to claim 1, wherein the upper die assembly comprises an upper die plate (1) and a punch holder (2) fixedly mounted at the bottom of the upper die plate (1).

3. The thin-walled tube punch forming die according to claim 1, wherein the movable die core (10) is provided with a limiting pin (13) for limiting the movement end position of the tube to be punched.

4. The thin-walled tube punch forming die according to claim 2, wherein the bottom of the punch holder (2) is provided with at least one pair of guide sleeves (5), the lower die plate (6) is provided with a plurality of guide posts (7) corresponding to the guide sleeves (5), and the guide sleeves (5) and the punch (4) are arranged at the bottom of the punch holder (2).

5. The thin-walled tube punch forming die according to claim 4, wherein the two pairs of guide sleeves (5) are respectively arranged at four corners of the male die holder (2).

6. The thin-walled tube punch forming die according to any one of claims 1 to 5, further comprising a handle (14) for directly or indirectly connecting the side wall of the intermediate sliding block (12) to push the intermediate sliding block (12) to slide along the first sliding groove and the second sliding groove.

7. The thin-walled tube punch forming die according to claim 6, wherein the handle (14) is rotatably mounted on the lower die plate (6), a connecting block (16) is mounted on the side wall of the middle sliding block (12), and a long connecting rod (15) is hinged between the handle (14) and the connecting block (16).

8. The thin-walled tube punch forming die according to claim 6, wherein the handle (14) is provided with a hand grip portion for being attached to a hand during gripping.

9. The thin-walled tube punch forming die according to claim 8, wherein the holding part is provided with an anti-slip structure.