CN211330993U

CN211330993U - Large-angle pressing mechanism for parts

Info

Publication number: CN211330993U
Application number: CN201922447082.5U
Authority: CN
Inventors: 耿耕坤; 李懂续; 牛攀龙; 丁顺风; 李喜东
Original assignee: Faw Mould Tianjin Co ltd
Current assignee: Faw Mould Tianjin Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-25
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a large-angle pressing mechanism for a workpiece, which is arranged between an upper die and a lower die to realize the pressing of the stamping angle of the workpiece, and comprises a rotating arm, a pressing head, a limiting block component, a spring driver and a supporting frame; the limiting block assembly and the spring driver are fixedly connected with the upper die, one end of the rotating arm is hinged with the limiting block assembly, the pressing head is fixedly installed at the end of the rotating arm, and the other end of the rotating arm is arranged below the spring driver and is in contact with the spring driver; the support frame is fixedly connected with the lower die, and the support frame is located at one end of the rotating arm matched with the spring driver. The utility model discloses can improve the finished piece and bordure stamping effect, improve the part qualification rate.

Description

Large-angle pressing mechanism for parts

Technical Field

The utility model mainly relates to a car cold stamping die correlation technique field specifically is a big angle pressing mechanism of system spare.

Background

In the automobile processing workshop, the mould of borduring of four doors two covers of car is used for the punching press of finished piece angle, and the finished piece angle generally can not be too big, controls within 45 degrees, if too big, can lead to borduring bad condition emergence. In the prior art, the pressing of the angle of the workpiece is generally realized through an inclined pressing head connected to an upper die, and when the upper die moves downwards towards the direction close to a lower die, the workpiece on a workpiece support body is punched through the pressing head to realize the large-angle punching of the workpiece.

Along with the gradual improvement of present automobile manufacturing requirement, among the prior art, because the pressfitting head is the rigid connection with last finished piece, when carrying out the punching press, this rigid pressfitting head effort direct action on the finished piece, appear easily borduring the emergence of punching press angle bad condition for the part qualification rate reduces, and this condition also is difficult to improve through debugging technique.

SUMMERY OF THE UTILITY MODEL

For solving the not enough of prior art, the utility model discloses combine prior art, set out from practical application, provide a big angle pressing mechanism of finished piece to improve the finished piece and bordure stamping effect, improve the part qualification rate.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a large-angle pressing mechanism for a workpiece is arranged between an upper die and a lower die to realize stamping angle pressing of the workpiece, and comprises a rotating arm, a pressing head, a limiting block assembly, a spring driver and a supporting frame;

the limiting block assembly and the spring driver are fixedly connected with the upper die, one end of the rotating arm is hinged with the limiting block assembly, the pressing head is fixedly installed at the end of the rotating arm, and the other end of the rotating arm is arranged below the spring driver and is in contact with the spring driver;

the support frame is fixedly connected with the lower die, and the support frame is located at one end of the rotating arm matched with the spring driver.

The end part of the rotating arm is provided with a transverse plate which is abutted to a telescopic head of the spring driver, and a supporting head is arranged below the transverse plate and is abutted to the supporting frame when the upper die moves downwards.

The bottom surface of the support head, which is used for being matched with the support frame, is an arc surface.

The limiting block assembly comprises a connector, a rotating limiting block and a pressing limiting block, wherein the rotating limiting block and the pressing limiting block are arranged on one side of the connector;

the swinging boom is connected with the connector through the pivot is articulated, when rotatory stopper is used for spacing last mould to go upward the turned angle of swinging boom, the pressfitting stopper is used for injecing when going upward the mould fixed angle of swinging boom.

The upper surface of the rotating arm and the end, matched with the limiting block component, of the rotating arm is a plane, the lower surface of the pressing limiting block is a plane, and the lower surface of the rotating limiting block is an inclined plane.

The upper surfaces of the connector, the rotary limiting block and the press-fit limiting block are connected with the upper die through screws.

The utility model has the advantages that:

1. the utility model discloses the pressing mechanism who sets up through setting up the pressfitting head into the structure with adjustable angle, makes to become incomplete rigid connection between pressfitting head and the last mould through the cooperation of stop block subassembly and spring driver, so structural design for the pressfitting head is when carrying out the finished piece punching press, and its effort to the finished piece progressively increases and for rotatory pressure application, compares in pure rigidity punching press, and its punching press effect that can obviously promote the finished piece improves the qualification rate of finished piece.

2. The utility model provides a support frame and spacing subassembly concrete structural design is reasonable, realizes the injecing of pressfitting head angle through rotatory stopper and pressfitting stopper, and the accessible is changed or the simple mode of debugging the stopper is adjusted the pressfitting angle of pressfitting head, and it can be very convenient in proper order further improves the pressfitting effect of finished piece through debugging technique.

Drawings

FIG. 1 is a schematic view of the structure of the working state of the present invention;

FIG. 2 is a schematic view of the non-operating structure of the present invention;

FIG. 3 is a schematic structural view of the utility model with the upper mold removed;

FIG. 4 is a first schematic structural view of the pressing mechanism of the present invention;

FIG. 5 is a schematic structural view of a pressing mechanism of the present invention;

fig. 6 is a schematic view of the working principle of the present invention.

Reference numerals shown in the drawings:

1. an upper die; 2. a lower die; 3. a pressing mechanism;

31. a stop block assembly; 311. a connector; 312. rotating the limiting block; 313. pressing a limiting block; 314. a rotating shaft;

32. a rotating arm; 321. a transverse plate; 322. a support head;

33. a spring driver;

34. a press-fit head;

35. a support frame;

4. and (5) supporting the workpiece.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope defined in the present application.

As shown in FIGS. 1-6, for the utility model provides a big angle pressing mechanism of system is relevant structure and principle sketch map.

The utility model discloses a big angle pressing mechanism of finished piece for install and realize finished piece punching press angle pressfitting between last mould 1 and lower mould 2.

The pressing mechanism comprises a rotating arm 32, a pressing head 34, a limiting block component 31, a spring driver 33 and a supporting frame 35; the limiting block assembly 31 and the spring driver 33 are fixedly connected with the upper die 1, one end of the rotating arm 32 is hinged with the limiting block assembly 31 and is fixedly provided with the pressing head 34, and the other end of the rotating arm 32 is arranged below the spring driver 33 and is in contact with the spring driver 33; support frame 35 and lower mould 2 fixed connection, just support frame 35 is located swinging boom 32 and spring driver 33 matched with one end. In the present invention, the limiting block assembly 31 is used for connecting with the upper die 1, and is used for providing a rotation supporting point for the rotating arm 32 and limiting the specific rotation angle of the rotating arm 32; the spring driver 33 is used to apply a downward elastic force to one end of the rotating arm 32 downward, so that the rotating arm 32 can rotate a certain angle without the working force of the upper and lower molds. The supporting frame 35 is fixed on the lower die 2, and is mainly used for providing a supporting force for the rotating arm 32 when the upper die 1 and the lower die 2 work, so that the rotating arm 32 can overcome the force of the spring driver 33 to ensure that the pressing head 34 can be in a normal pressing state.

Preferably, in the present invention, a transverse plate 321 is disposed at an end of the rotating arm 32, the transverse plate 321 abuts against the retractable head of the spring driver 33, a supporting head 322 is disposed below the transverse plate 321, and the supporting head 322 abuts against the supporting frame 35 when the upper die 1 moves downward. Spring driver 33 has a flexible head, and this flexible head has decurrent power under the effect of the inside spring of spring driver 33, and this flexible head butt can transmit effort in swinging boom 32 and then make swinging boom 32 can rotate through diaphragm 321 on diaphragm 321, supports head 322 and is used for cooperating with support frame 35, and its bottom surface is the cambered surface, and structural design like this, at the during operation, the rotation of swinging boom 32 is more nimble, can not lead to the fact the damage to supporting head 322 and support frame 35.

Preferably, in the present invention, the stopper assembly 31 includes a connector 311, and a rotation stopper 312 and a press stopper 313 disposed on one side of the connector 311; the rotating arm 32 is hinged to the connector 311 through a rotating shaft 314, the rotating limiting block 312 is used for limiting the rotating angle of the rotating arm 32 when the upper die 1 moves upwards, and the pressing limiting block 313 is used for limiting the fixed angle of the rotating arm 32 when the upper die 1 moves downwards. Connector 311, rotation limiting block 312, the upper surface of pressfitting limiting block 313 is the plane, and all be equipped with the mounting hole be used for with last mould 1 fixed connection, connector 311 bottom is connected the swinging boom 32 through pivot 314 and then is made the swinging boom 32 can revolve around pivot 314 rotatory, rotation limiting block 312, pressfitting limiting block 313 is located the both sides of pivot 314 respectively, consequently both can inject the limit angle of swinging boom 32 when clockwise and anticlockwise rotate respectively, and then guarantee the completion pressfitting action that the pressfitting head 34 of being connected with swinging boom 32 can be normal. The utility model discloses in, it is concrete, the upper surface of swinging boom 32 and stopper subassembly 31 cooperation one end is the plane, pressfitting stopper 313 lower surface is the plane, rotatory stopper 312 lower surface is the inclined plane, and the inclination on this inclined plane is confirmed according to actual conditions. Just the utility model discloses in, the upper surface of connector 311, rotatory stopper 312, pressfitting stopper 313 with go up all through the screw connection between the mould 1, change that can be convenient rotatory stopper 312, pressfitting stopper 313 are in order to ensure the accurate pressfitting of pressfitting head 34.

As shown in fig. 6, the working principle of the present invention is as follows:

as shown in fig. (a), when the upper mold 1 is separated from the lower mold 2, the rotating arm 32 is inclined downward by a certain angle under the action of the spring driver 33, and at this time, the pressing head 34 connected thereto is also inclined by a certain angle; as shown in fig. b, when the upper die 1 moves downward to enter the working state, the rotating arm 32 moves downward until contacting the supporting frame 35, at this time, due to the blocking of the supporting frame 35, the spring in the spring driver 33 is compressed, the angle of the rotating arm 32 gradually returns to the original position, the pressing head 34 changes in angle and moves downward to realize the stamping of the workpiece placed on the supporting body 4, after the stamping is completed, the upper die 1 moves upward, and under the action of the spring driver 33, the rotating arm 33 returns to the state of (a) again, so that the whole stamping process is completed.

Claims

1. A large-angle pressing mechanism for a workpiece is arranged between an upper die and a lower die to realize stamping angle pressing of the workpiece, and is characterized in that the pressing mechanism comprises a rotating arm, a pressing head, a limiting block assembly, a spring driver and a supporting frame;

2. The large-angle workpiece pressing mechanism according to claim 1, wherein a transverse plate is arranged at an end of the rotating arm and abuts against a telescopic head of the spring driver, and a support head is arranged below the transverse plate and is used for abutting against the support frame when the upper die moves downwards.

3. The large-angle pressing mechanism for the workpieces as recited in claim 2, wherein the bottom surface of the supporting head for fitting with the supporting frame is an arc surface.

4. The large-angle workpiece pressing mechanism according to claim 1, wherein the limiting block assembly comprises a connector, and a rotation limiting block and a pressing limiting block which are arranged on one side of the connector;

5. The large-angle pressing mechanism for the manufactured parts according to claim 4, wherein the upper surface of the end of the rotating arm, which is matched with the limiting block assembly, is a plane, the lower surface of the pressing limiting block is a plane, and the lower surface of the rotating limiting block is an inclined surface.

6. The large-angle pressing mechanism for the workpieces as claimed in claim 5, wherein the upper surfaces of the connector, the rotation limiting block and the pressing limiting block are connected with the upper die through screws.