CN219851670U

CN219851670U - Punching device for workpiece

Info

Publication number: CN219851670U
Application number: CN202321635205.8U
Authority: CN
Inventors: 吕少松; 石国金; 张琼叶
Original assignee: Ningbo Hongxie Corp ltd
Current assignee: Ningbo Hongxie Corp ltd
Priority date: 2023-06-27
Filing date: 2023-06-27
Publication date: 2023-10-20
Anticipated expiration: 2033-06-27

Abstract

The utility model belongs to the field of workpiece punching, and provides a punching device for a workpiece, which comprises: the upper die assembly is provided with a first punch, a second punch and a switching piece which is detachably arranged; in a first working state of the switching piece, the switching piece is abutted against the first punch and a gap is reserved between the switching piece and the second punch, the first punch punches a first hole-shaped structure on a workpiece, and the second punch does not punch the workpiece; and in a second working state of the switching piece, the switching piece is abutted against the second punch and has a gap with the first punch, the second punch punches a second hole-shaped structure on the workpiece, and the first punch does not punch the workpiece. Compared with the prior art, the device has the advantages that the design switching piece in the device can directly perform position movement to achieve the effect of actual operation of different punches, is convenient to operate and accelerates the whole production beat of a factory.

Description

Punching device for workpiece

Technical Field

The utility model belongs to the field of workpiece punching, and particularly relates to a punching device for a workpiece.

Background

The shape of the hole on the workpiece needs to be developed along with the development of the market, at least two kinds of holes with different shapes are required to be produced under the condition that the same product shape is the same, but the existing punching device shares a pair of tools, the first required hole, such as a waist-shaped hole, is punched on the workpiece, the tools are disassembled after the batch is punched, the spearhead with the other shape is replaced, and then the second batch of punching, such as the round hole is punched, the replacement and disassembly operations are troublesome, the time for changing the mortise head is increased, and the production beat of enterprises is reduced.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a punching device for a workpiece aiming at the current state of the art.

In order to solve the above technical problems, the present utility model provides a punching device for a workpiece, including: the workpiece is provided with at least a first working state and a second working state, and a first hole-shaped structure or a second hole-shaped structure is required to be formed on the workpiece;

the upper die assembly is movably arranged above the lower die assembly, the lower die assembly is used for positioning a workpiece to be punched, and the upper die assembly is provided with a first punch, a second punch and a switching piece which is detachably arranged;

in a first working state of the switching piece, the switching piece is abutted against the first punch and a gap is reserved between the switching piece and the second punch, the first punch punches the first hole-shaped structure on the workpiece, and the second punch does not punch the workpiece;

and in a second working state of the switching piece, the switching piece is abutted against the second punch and a gap is reserved between the switching piece and the first punch, the second punch punches the second hole-shaped structure on the workpiece, and the first punch does not punch the workpiece.

In the above-mentioned punching device for work piece, the switching piece includes fixed block and selection piece, selection piece one end is in through bolted connection on the fixed block, first recess and second recess have been seted up on the selection piece, first punch upper end activity is located in the first recess, second punch upper end activity is located in the second recess.

In the above-described punching device for a workpiece, the upper die assembly includes: the upper pressing block is provided with at least two step punching holes, and the first punch and the second punch can penetrate through the step punching holes to punch the workpiece;

the limiting block is arranged on the upper pressing block, a containing groove is formed in the lower end face of the limiting block, the selecting block is movably located in the containing groove, a connecting block is arranged on the upper end face of the limiting block, and the fixing block is connected to one side of the connecting block.

In the above-mentioned punching device for work piece, the inside one end of holding tank is provided with to the top surface, the holding tank inner wall is formed with preceding spacing face, back spacing face and last spacing face, the holding tank other end is provided with and is used for the spacing mouth that the selection piece got into.

In the punching device for the workpiece, the lower die assembly is provided with the lower pressing block, at least two pressing blocks are inlaid on the lower pressing block, through holes communicated with the step punching holes are formed in the pressing blocks, bolt holes are formed in the lower pressing block, and a notch communicated with the bolt holes is formed in one corner of the pressing block.

In the above-mentioned punching device for work piece, the lower mould subassembly still includes the workstation, be provided with the connecting seat on the workstation, the connecting seat upper end is provided with the supporting shoe, be provided with the connecting plate on the supporting shoe, the supporting shoe with the through-hole of mutual intercommunication has all been seted up to the connecting plate, the through-hole with the through-hole communicates, connecting seat one side is provided with and is located the inclined plane of through-hole below.

In the punching device for the workpiece, a first limiting column is arranged on the lower end face of the connecting block, and a second limiting column which is movably abutted to the end face of the first limiting column is arranged on the supporting block.

In the punching device for the workpiece, the guide sleeve is further arranged on the supporting block, the guide post is further arranged on the lower end face of the connecting block, and the guide post is movably sleeved in the guide sleeve.

Compared with the prior art, the utility model has the advantages that:

1. the device is provided with the switching piece, so that the disassembly of the tool on the machine table can be avoided, the effect of actual operation of different punches can be realized by directly moving the position of the switching piece, the operation is convenient, the time is saved, and the whole production beat of a factory is accelerated.

2. The working states of different punches can be realized by adjusting the positions of the selection blocks through screwing and unscrewing the bolts, so that the operation is convenient and the production efficiency is improved.

3. The upper end face of the upper pressing block, the front limiting face, the rear limiting face and the upper limiting face form a limiting accommodating groove against the top face, and the limiting effect on the selection block is achieved, so that the accuracy of the position movement of the selection block is guaranteed.

4. The setting is inlayed supports tight piece and can directly change to support tight piece and play the cost-effective effect, inserts the bolt hole through the bolt and can make to support tight piece and fasten in the compact heap down, prevents to fall out when operation or transport, sets up the breach and can prevent the position mistake when supporting tight piece and assembling.

5. Waste materials after the punching operation is finished on the workpiece can fall into the through holes and the through holes, and the waste materials can be conveniently cleaned in a centralized mode between the connecting seats through inclined planes.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a perspective view of a punching apparatus for a workpiece;

FIG. 2 is a cross-sectional view of FIGS. 1B-B;

FIG. 3 is a perspective view of a first hole-like structure in a workpiece;

FIG. 4 is a perspective view of a second hole-like structure in the workpiece;

FIG. 5 is a perspective view of a punching device;

FIG. 6 is a perspective view of the stopper;

FIG. 7 is a perspective view of the switch on the stopper;

FIG. 8 is a perspective view of the lower compression block;

FIG. 9 is a perspective view of the tightening block;

FIG. 10 is a perspective view of the upper press block;

fig. 11 is a cross-sectional view of fig. 10 A-A.

In the figure, 1, a first hole-shaped structure; 2. a second hole structure; 3. a first punch; 4. a second punch; 5. a fixed block; 6. selecting a block; 7. a first groove; 8. a second groove; 9. pressing into blocks; 10. step punching; 11. a workpiece; 12. a limiting block; 13. a connecting block; 14. a top surface; 15. a front limit surface; 16. a rear limit surface; 17. an upper limit surface; 18. a lower compaction block; 19. a tightening block; 20. a via hole; 21. a bolt hole; 22. a first limit post; 23. the second limit column; 24. guide sleeve; 25. a guide post; 26. a through hole; 27. a notch; 28. a work table; 29. a connecting seat; 30. a support block; 31. an inclined plane; 32. and (5) connecting a plate.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 5, a punching device for a workpiece of the present utility model includes: the workpiece 11 is provided with at least a first working state and a second working state, and a first hole-shaped structure 1 or a second hole-shaped structure 2 is required to be formed on the workpiece 11; the upper die assembly is movably arranged above the lower die assembly, the lower die assembly is used for positioning a workpiece 11 to be punched, and the upper die assembly is provided with a first punch 3, a second punch 4 and a switching piece which is detachably arranged; in a first working state of the switching piece, the switching piece is abutted against the first punch 3 and has a gap with the second punch 4, the first punch 3 punches the first hole-shaped structure 1 on the workpiece 11, and the second punch 4 does not punch the workpiece 11; in the second working state of the switching piece, the switching piece is abutted against the second punch 4 and has a gap with the first punch 3, the second punch 4 punches the second hole-shaped structure 2 on the workpiece 11, and the first punch 3 does not punch the workpiece 11.

The enterprise production needs to produce the products with different hole shapes under the condition of the same product appearance, the first batch is a first hole-shaped structure 1, such as a waist-shaped hole as shown in fig. 3, the second batch is a second hole-shaped structure 2, such as a round hole type as shown in fig. 4, the punching device is arranged on a machine table, a workpiece 11 needing to be punched is arranged on a lower die assembly, the upper die assembly moves the position of a switching piece according to the requirements of different hole batches in the production workpiece 11, when the switching piece moves to the right to form the position as shown in fig. 2 as shown in fig. 5, the switching piece is in a second working state, a gap is reserved between the lower end surface of the switching piece and the second punch 4 and between the lower end surface of the switching piece and the first punch 3, then when the upper die assembly moves downwards to perform die assembly closing operation, the lower end surface of the switching piece and the upper end of the second punch 4 can die the second hole-shaped structure 2 due to the fact that the lower end surface of the switching piece is blocked by the upper end of the switching piece and the upper end of the second punch 4, for example, a round hole is punched, the upper end of the first punch 3 and the lower end face of the switching piece have a gap, the upper die assembly is pressed downwards to have no propping force on the first punch 3, so that the first punch 3 does not punch the workpiece 11, when holes of other batches are required to be punched, the upper die assembly and the lower die assembly are opened, the workpiece 11 to be punched is placed on the lower die assembly again, at the moment, the position of the switching piece is only required to be changed, the switching piece is moved leftwards as shown in fig. 2 to form a first working state, the lower end face of the switching piece is abutted against the first punch 3 and has a gap with the second punch 4, then, when the upper die assembly is moved towards the lower die assembly to perform die clamping operation, the lower end face of the switching piece and the upper end of the first punch 3 are propped against each other, so that the workpiece 11 can be punched into a first hole-shaped structure 1, for example, a waist-shaped hole is punched, the upper end of the second punch 4 is in clearance with the lower end face of the switching piece, the upper die assembly is pressed downwards, the second punch 4 does not punch the workpiece 11 because of no abutting force to the second punch 4, compared with the prior art that the tooling is required to be disassembled for replacing the punches after punching holes of different batches on the same workpiece 11, the switching piece is designed in the device in the scheme, the dismounting of the tooling on a machine table can be avoided, the actual running effect of different punches can be realized by directly carrying out position movement on the switching piece, the operation is convenient, the time is saved, and the whole production beat of a factory is accelerated.

As shown in fig. 1 to 5 and 7, the switching member comprises a fixed block 5 and a selection block 6, one end of the selection block 6 is connected to the fixed block 5 through a bolt, a first groove 7 and a second groove 8 are formed in the selection block 6, the upper end of the first punch 3 is movably located in the first groove 7, and the upper end of the second punch 4 is movably located in the second groove 8.

At least two rows of threaded holes can be formed at one end of the selection block 6, when the position of the selection block 6 needs to be moved, the selection block 6 and the fixed block 5 are in an unconnected state by unscrewing the bolts, when the selection block 6 moves rightwards as shown in fig. 5 to form the position shown in fig. 2, the second working state is the second working state, the lower end face of the selection block 6 abuts against the second punch 4, a gap is formed between the upper end of the first punch 3 and the first groove 7, after the position movement of the selection block 6 is completed, the selection block 6 is locked on the fixed block 5 through a plurality of rows of threaded holes formed on the selection block 6, then the upper die assembly moves downwards to perform die assembly operation, the second punching structure 2 can be punched on the workpiece 11 due to the fact that the lower end face of the selection block 6 and the upper end of the second punch 4 are in a dead state, for example, the first punch 3 upper end and the first groove 7 are in a gap, the first punch 3 enters into the first groove 7, the first punch 3 does not punch operation on the workpiece 11, when the position of the first punch 3 does not punch the workpiece 11 need to perform die assembly operation on the workpiece 11, the first die assembly does not press the first punch 4, the second punch 4 can be in a gap, the second punch operation efficiency can be conveniently achieved by screwing the first punch 3 and the second punch 4 into the second punch structure through the gap, and the second punch 4 can be adjusted to the position when the upper end of the second punch 4 is in a gap, and the position of the second punch assembly 4 is in a gap 4.

As shown in fig. 1 to 5, 7, 10, and 11, the upper die assembly includes: the upper pressing block 9 is provided with at least two step punching holes 10, and the first punch 3 and the second punch 4 can penetrate through the step punching holes 10 to punch the workpiece 11; the limiting block 12 is arranged on the upper pressing block 9, the lower end face of the limiting block 12 is provided with a containing groove, the selection block 6 is movably positioned in the containing groove, the upper end face of the limiting block 12 is provided with a connecting block 13, and the fixed block 5 is connected to one side of the connecting block 13.

When the first punch 3 and the second punch 4 alternately have a gap with the selection block 6, the step punching 10 can move upwards as shown in fig. 2 during die assembly so as not to perform punching operation, and the step punching 10 can also play a limiting role on the first punch 3 and the second punch 4 so as to prevent the first punch 4 from separating from the upper pressing block 9, and when the selection block 6 is in a second working state as shown in fig. 2 in the accommodating groove, the selection block 6 can be abutted in the accommodating groove so as to play a limiting role.

As shown in fig. 2, 6 and 7, one end inside the accommodating groove is provided with a propping surface 14, the inner wall of the accommodating groove is provided with a front limiting surface 15, a rear limiting surface 16 and an upper limiting surface 17, the other end of the accommodating groove is provided with a limiting opening for the selection block 6 to enter, the selection block 6 can move left and right at the limiting opening and then can be switched from a first working state to a second working state, one end inside the selection block 6 is propped against the propping surface 14 to display the second working state, after the limiting block 12 is placed on the upper pressing block 9, the upper end surface of the upper pressing block 9 forms a limiting accommodating groove with the front limiting surface 15, the rear limiting surface 16 and the upper limiting surface 17, the limiting effect is achieved on the selection block 6, and the accuracy of the position movement of the selection block 6 is guaranteed.

As shown in fig. 2, 8 and 9, a lower compression block 18 is arranged on the lower die assembly, at least two abutting blocks 19 are embedded on the lower compression block 18, through holes 20 communicated with the step punching holes 10 are formed in the abutting blocks 19, bolt holes 21 are formed in the lower compression block 18, and a notch 27 communicated with the bolt holes 21 is formed in one corner of the abutting blocks 19.

Besides the pressing of the workpiece 11, the pressing block 19 is required to be pressed against the lower surface of the workpiece 11 during punching operation, so that a gap is formed between the punching position and the lower pressing block 18, burrs are formed in the hole during punching operation when the gap is formed, the hardness requirement on the punching position is high, if the whole lower pressing block 18 is designed to be high in hardness, the cost is high, the pressing block 19 embedded can be saved, the pressing block 19 can be directly replaced due to deformation state generated by long-term operation stress at the punching position, the pressing block 19 can be fastened in the lower pressing block 18 through inserting pins into the pin holes 21 after the pressing block 19 is placed in the lower pressing block 18, the pressing block is prevented from falling out during operation or transportation, and the notch 27 can be arranged to prevent position errors during assembling of the pressing block 19.

As shown in fig. 2 and 5, the lower die assembly further comprises a workbench 28, a connecting seat 29 is arranged on the workbench 28, a supporting block 30 is arranged at the upper end of the connecting seat 29, a connecting plate 32 is arranged on the supporting block 30, through holes 26 which are mutually communicated are formed in the supporting block 30 and the connecting plate 32, the through holes 26 are communicated with the through holes 20, an inclined plane 31 which is positioned below the through holes 26 is arranged on one side of the connecting seat 29, waste falls into the workpiece 11 after the punching operation is completed, the waste falls into the through holes 20 and the through holes 26, then falls into the connecting seat 29 from the inclined plane 31, and the waste can be collected and cleaned by an air gun or a brush.

As shown in fig. 5, a first limit post 22 is disposed on the lower end surface of the connecting block 13, a second limit post 23 movably abutted against the end surface of the first limit post 22 is disposed on the support block 30, and when the upper die assembly and the lower die assembly are clamped until the lower end surface of the first limit post 22 is attached to the upper end surface of the second limit post 23, the die clamping is completed at this time, thereby achieving a limit effect.

As shown in fig. 5, the supporting block 30 is further provided with a guide sleeve 24, the lower end surface of the connecting block 13 is further provided with a guide post 25, the guide post 25 is movably sleeved in the guide sleeve 24, and when the upper die assembly and the lower die assembly are assembled, the guide post 25 moves in the guide sleeve 24 to play a role in guiding the assembly and the disassembly.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. A punching apparatus for a workpiece, comprising: the workpiece is provided with at least a first working state and a second working state, and a first hole-shaped structure or a second hole-shaped structure is required to be formed on the workpiece;

2. The punching device for workpieces according to claim 1, wherein the switching piece comprises a fixed block and a selection block, one end of the selection block is connected to the fixed block through a bolt, a first groove and a second groove are formed in the selection block, the upper end of the first punch is movably located in the first groove, and the upper end of the second punch is movably located in the second groove.

3. A punching device for a workpiece according to claim 2, characterized in that the upper die assembly comprises: the upper pressing block is provided with at least two step punching holes, and the first punch and the second punch can penetrate through the step punching holes to punch the workpiece;

4. A punching device for a workpiece according to claim 3, wherein one end of the inside of the accommodating groove is provided with a top-abutting surface, the inner wall of the accommodating groove is formed with a front limit surface, a rear limit surface and an upper limit surface, and the other end of the accommodating groove is provided with a limit opening for the entry of the selection block.

5. The punching device for workpieces according to claim 4, wherein a lower pressing block is arranged on the lower die assembly, at least two abutting blocks are inlaid on the lower pressing block, through holes communicated with the step punching holes are formed in the abutting blocks, bolt holes are formed in the lower pressing block, and a notch communicated with the bolt holes is formed in one corner of each abutting block.

6. The punching device for workpieces according to claim 5, wherein the lower die assembly further comprises a workbench, a connecting seat is arranged on the workbench, a supporting block is arranged at the upper end of the connecting seat, a connecting plate is arranged on the supporting block, through holes which are communicated with each other are formed in the supporting block and the connecting plate, the through holes are communicated with the through holes, and an inclined plane which is located below the through holes is arranged on one side of the connecting seat.

7. The punching device for workpieces according to claim 6, wherein a first limit post is arranged on the lower end face of the connecting block, and a second limit post which is movably abutted against the end face of the first limit post is arranged on the supporting block.

8. The punching device for workpieces according to claim 6, wherein the supporting block is further provided with a guide sleeve, the lower end face of the connecting block is further provided with a guide post, and the guide post is movably sleeved in the guide sleeve.