CN219233685U

CN219233685U - Burr pressing tool

Info

Publication number: CN219233685U
Application number: CN202223609333.3U
Authority: CN
Inventors: 刘腾腾
Original assignee: Suzhou Alto Electromechanical Co ltd
Current assignee: Suzhou Alto Electromechanical Co ltd
Priority date: 2022-12-31
Filing date: 2022-12-31
Publication date: 2023-06-23
Anticipated expiration: 2032-12-31

Abstract

The application relates to a press burr frock relates to stamping die technical field, a press burr frock, include: the device comprises a frame, an upper die and a lower die, wherein the upper die is connected to the frame in a sliding manner, and the lower die is fixedly connected with the frame; the top surface of the lower die is provided with a positioning component capable of positioning the silicon steel sheet; the bottom surface of the upper die is provided with a die for removing burrs on the inner hole wall of the silicon steel sheet, the bottom surface of the die is provided with a groove, and the intersection of two side surfaces of the groove is provided with a processing surface. The burr pressing tool has the effect of increasing the working efficiency of the burr pressing tool.

Description

Pressing device Burr tool

Technical Field

The application relates to the technical field of stamping dies, in particular to a burr pressing tool.

Background

After the annular silicon steel sheet is formed by stamping, burrs are generated on the inner hole wall of the silicon steel sheet, and the quality of the silicon steel sheet is affected. The deburring is usually required, and after the deburring, the peripheral wall of the silicon steel sheet is required to be chamfered, so that the possibility that the outer edge of the silicon steel sheet scratches a user is reduced.

In the related art, the deburring mechanism comprises a frame, an upper die and a lower die, wherein the upper die is in sliding connection with the frame, the lower die is fixed on the frame, and a groove matched with the shape of the silicon steel sheet is formed in the bottom surface of the upper die. When the die is used, the silicon steel sheet is fixed on the lower die, the upper die is moved downwards, the silicon steel sheet is embedded into the groove, and burrs on the inner hole wall of the silicon steel sheet are cut off by the side wall of the groove. And taking down the silicon steel sheet after taking out the burrs, placing the silicon steel sheet on a chamfering machine, and chamfering the silicon steel sheet.

Aiming at the related technology, two steps are needed to be carried out on the finished silicon steel sheet, deburring is carried out firstly, chamfering is carried out later, the process is complex, and the efficiency is low.

Disclosure of Invention

The utility model aims at providing a press burr frock of increase work efficiency.

The application provides a press burr the tool adopts the following technical scheme: a deburring tool comprising: the device comprises a frame, an upper die and a lower die, wherein the upper die is connected to the frame in a sliding manner, and the lower die is fixedly connected with the frame;

the top surface of the lower die is provided with a positioning component capable of positioning the silicon steel sheet;

the bottom surface of the upper die is provided with a die which is used for removing burrs on the inner hole wall of the silicon steel sheet and chamfering the outer peripheral wall of the silicon steel sheet, the bottom surface of the die is provided with a groove, and a machining surface is arranged at the intersection of the two inner side walls of the groove.

Through adopting above-mentioned technical scheme, when the upper mould is close to lower mould position, make the silicon steel sheet pressed into in the recess, the inner wall that the recess is close to upper mould center is hugged closely with silicon steel sheet hole wall, and the burr of silicon steel sheet inner hole wall is cut off, and the machined surface and the outer peripheral face butt of silicon steel sheet extrude the silicon steel sheet this moment, and then make the silicon steel sheet form the chamfer. And when the silicon steel sheet is subjected to deburring, the silicon steel sheet is chamfered, so that the process of extra chamfering is omitted, and the machining efficiency of the machine is further improved.

Optionally, the positioning component comprises a positioning block and an elastic piece, the top surface of the lower die is provided with a plurality of blind holes, one positioning block is arranged in each blind hole, and the positioning block slides in each blind hole;

the elastic piece is arranged between the inner wall of the blind hole and the positioning block, one end of the elastic piece is fixedly connected with the positioning block, and the other end of the elastic piece is fixedly connected with the inner wall of the blind hole.

Through adopting above-mentioned technical scheme, place the silicon steel sheet between a plurality of locating piece, make the locating piece fix the silicon steel sheet position, push the locating piece to slide in the blind hole in the in-process of last mould pushing down, make the locating piece completely pressed into in the blind hole, and then make the silicon steel sheet press into in the recess and process. When the upper die is reset, the elastic piece is restored, and then the positioning block is driven to reset.

Optionally, an arc-shaped groove for assisting in positioning the silicon steel sheet is formed in the positioning block.

The positioning block is generally rectangular, the silicon steel sheet is annular, further the contact with the positioning block is point contact, the contact area is small, and the limiting effect is poor.

Optionally, the inner wall of the groove is fixedly connected with a step, and the height of the step is smaller than that of the positioning block.

The silicon steel sheet is generally directly placed on the top surface of the lower die, and after the silicon steel sheet is processed, the silicon steel sheet is placed on the top surface of the lower die, and the gap between the silicon steel sheet and the top surface of the lower die is smaller, so that the silicon steel sheet is inconvenient to take out; by adopting the technical scheme, the silicon steel sheet is placed on the step, after the silicon steel sheet is processed, the step drives the silicon steel sheet to move towards the direction away from the lower die, so that a certain gap is reserved between the lower die and the silicon steel sheet, and the silicon steel sheet is conveniently taken out.

Optionally, the die is detachably connected with the upper die, a locking piece for fixing the die is arranged between the die and the upper die.

Through adopting above-mentioned technical scheme, when the chamfer specification on the silicon steel sheet needs to change, open the locking piece, take off the mould, change new mould, and then process the silicon steel sheet again to the suitability of machine has been increased.

Optionally, the bottom surface of the upper die is fixedly connected with a plurality of first positioning columns, the top surface of the lower die is provided with a plurality of first positioning holes, and the first positioning columns are matched with the positioning holes.

Through adopting above-mentioned technical scheme, in the in-process that moves down at last mould, make first locating column insert in the first locating hole to carry out spacingly to the position of last mould and lower mould, and then reduce the position deviation between last mould and the lower mould, thereby reduced the error of the silicon steel sheet of processing out.

Optionally, the bottom surface of the first positioning column is provided with a rounded corner surface.

By adopting the technical proposal, in the process of inserting the first positioning column into the first positioning hole, the round angle surface is contacted with the inner wall of the first positioning hole firstly, under the guiding action of the round angle surface, the first locating column is inserted into the first locating hole completely, and then the round angle surface can finely tune the positions of the upper die and the lower die, so that the possibility that the machine stops running due to the fact that the first locating column directly collides with the top surface of the lower die is reduced.

Optionally, the bottom surface of the die is provided with a plurality of second positioning columns, and the height of each second positioning column is lower than that of each first positioning column;

and the top surface of the lower die is provided with a plurality of second positioning holes, and the second positioning holes are matched with the second positioning columns.

Through adopting above-mentioned technical scheme, insert first locating hole after first reference column, the second reference column inserts in the second locating hole, and then carries out spacingly to the position of mould and lower mould, has reduced the mould and has taken place the skew in the installation to lead to the great possibility of error of the silicon steel sheet of processing out.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the upper die is close to the lower die, the silicon steel sheet is pressed into the groove, the inner wall of the groove close to the center of the upper die is clung to the inner hole wall of the silicon steel sheet, burrs on the inner hole wall of the silicon steel sheet are cut off, the machining surface is abutted with the outer peripheral surface of the silicon steel sheet at the moment, the silicon steel sheet is extruded, and then the silicon steel sheet forms a chamfer. Chamfering is carried out on the silicon steel sheet while deburring is carried out on the silicon steel sheet, so that the process of extra chamfering is omitted, and the machining efficiency of the machine is further improved;

2. and placing the silicon steel sheets among the plurality of positioning blocks, fixing the positions of the silicon steel sheets by the positioning blocks, pushing the positioning blocks to slide into the blind holes in the pressing-down process of the upper die, and completely pressing the positioning blocks into the blind holes so as to press the silicon steel sheets into the grooves for processing. When the upper die is reset, the elastic piece is restored, and then the positioning block is driven to reset;

3. and placing the silicon steel sheet on the step, and after the silicon steel sheet is processed, driving the silicon steel sheet to move in the direction away from the lower die by the step, so that a certain gap is reserved between the lower die and the silicon steel sheet, and further, the silicon steel sheet is conveniently taken out.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a deburring tool according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram for showing a positional relationship between an upper die and a mold according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram for showing a positional relationship between a lower die and a positioning component according to an embodiment of the present application.

Fig. 4 is a schematic cross-sectional structure of a lower die according to an embodiment of the present application.

In the drawing the view of the figure, 1, a frame; 11. a cylinder;

2. an upper die; 21. a mold; 211. groove the method comprises the steps of carrying out a first treatment on the surface of the; 212. processing a noodle; 213. a second positioning column; 22. a locking member; 23. a first positioning column; 231. round angle surface;

3. lower part(s) molding; 31. a first positioning hole; 32. a second positioning hole; 33. a blind hole;

4. a positioning assembly; 41. a positioning block; 411. an arc-shaped groove; 412. step the method comprises the steps of carrying out a first treatment on the surface of the; 42. an elastic member.

Detailed Description

The present application is described in further detail below with reference to fig. 1-4.

Referring to fig. 1, the burr pressing tool comprises a frame 1, an upper die 2 and a lower die 3. The frame 1 is placed on the ground, and upper die 2 and frame 1 sliding connection, lower die 3 and frame 1 fixed connection, and upper die 2 is located directly over lower die 3. A plurality of cylinders 11 are fixedly connected to the frame 1, in this embodiment, 4 cylinders 11 are arranged, one end of each cylinder 11 is fixedly connected with the frame 1, and the other end of each cylinder 11 is fixedly connected with the top surface of the upper die 2.

The positioning component 4 is installed on the top surface of the lower die 3, the die 21 is arranged on the bottom surface of the upper die 2, the locking piece 22 is arranged between the die 21 and the upper die 2, and in the embodiment, the locking piece 22 adopts bolts. A locking member 22 is threaded through the upper die 2 and into the die 21.

Referring to fig. 2, a groove 211 is formed in the bottom surface of the mold 21, and the shape of the groove 211 is adapted to the shape of the silicon steel sheet. The inner side wall of the groove 211 far from the center of the die 21 and the junction of the bottom wall of the groove 211 are provided with processing surfaces 212.

The bottom surface of the upper die 2 is fixedly connected with a first positioning column 23, the bottom surface of the die 21 is fixedly connected with a second positioning column 213, and the height of the second positioning column 213 is lower than that of the first positioning column 23. The first positioning column 23 is provided with a rounded corner surface 231 on a surface remote from the upper die 2.

Referring to fig. 3, a first positioning hole 31 and a second positioning hole 32 are formed in the top surface of the lower die 3, the first positioning hole 31 is adapted to the first positioning column 23, and the second positioning hole 32 is adapted to the second positioning column 213.

When the deburring and chamfering of the silicon steel sheet are required, the silicon steel sheet is placed on the lower die 3, and the silicon steel sheet is fixed through the positioning component 4. Then the cylinder 11 is extended to drive the upper die 2 to move towards the direction of the lower die 3 until the first positioning column 23 is inserted into the first positioning hole 31, the cylinder 11 continues to extend so that the second positioning column 213 is inserted into the second positioning hole 32, and the groove 211 corresponds to the position of the silicon steel sheet. The cylinder 11 continues to extend, so that the silicon steel sheet is connected with the inner side wall of the groove 211, the inner side wall of the groove 211, which is close to the center of the die 21, is tightly attached to the inner hole wall of the silicon steel sheet, and burrs on the inner hole wall of the silicon steel sheet are cut off. The outer wall of the silicon steel sheet is in contact with the processing surface 212, and the processing surface 212 extrudes the silicon steel sheet to enable the outer wall of the silicon steel sheet to form a chamfer, so that the processing of the silicon steel sheet is completed.

When the chamfering specification on the silicon steel sheet is changed, the locking piece 22 is unscrewed, the die 21 is taken down, a new die 21 with the specification matched with the silicon steel sheet is replaced, the locking piece 22 is screwed down, the new die 21 is fixed, and the silicon steel sheet can be processed again.

Referring to fig. 4, the positioning assembly 4 includes a positioning block 41 and an elastic member 42, in this embodiment, the elastic member 42 is a spring. The top surface of the lower die 3 is provided with a plurality of blind holes 33, in this embodiment, three blind holes 33 are uniformly distributed along the central axis 360 degrees of the lower die 3, and each blind hole 33 is internally provided with a positioning block 41 and the positioning block 41 slides in the blind hole 33. The elastic member 42 is disposed between the inner wall of the blind hole 33 and the positioning block 41, one end of the elastic piece 42 is fixedly connected with the positioning block 41, and the other end of the elastic piece 42 is fixedly connected with the inner wall of the blind hole 33.

The top surface of the positioning block 41 is provided with an arc-shaped slot 411, the shape of the arc-shaped slot 411 is matched with the shape of the peripheral wall of the silicon steel sheet, and the arc-shaped slot 411 is positioned at one end of the positioning block 41, which is close to the center of the lower die 3. The inner wall of the arc-shaped slot 411 is fixedly connected with a step 412, and the height of the step 412 is lower than that of the positioning block 41.

The silicon steel sheet is placed on the step 412, and the inner wall of the arc-shaped slot 411 abuts against the outer peripheral wall of the silicon steel sheet. In the process of pressing down the upper die 2, the positioning block 41 and the step 412 are pressed down by the upper die 2 until the silicon steel sheet contacts the surface of the lower die 3, the positioning block 41 and the step 412 are pressed into the blind hole 33, and at this time, the silicon steel sheet is pressed into the groove 211 for processing. After the processing of the silicon steel sheet is completed, the upper die 2 moves upwards, the elastic piece 42 is restored, the positioning block 41 and the step 412 are driven to move upwards, and the positioning block 41 and the step 412 are reset, so that the processed silicon steel sheet can be taken down.

The implementation principle of the embodiment of the application is as follows: the silicon steel sheet to be processed is placed on the step 412, the cylinder 11 is extended to drive the upper die 2 to move downward until the first positioning column 23 is inserted into the first positioning hole 31, the second positioning column 213 is inserted into the second positioning hole 32, the cylinder 11 continues to extend to enable the positioning block 41 to be in contact with the bottom surface of the upper die 2, and the upper die 2 moves downwards to enable the positioning block 41 to be pressed into the blind hole 33, and further the step 412 is driven to be pressed into the blind hole 33. The silicon steel sheet is contacted with the top surface of the lower die 3 and then pressed into the groove 211, the inner wall of the groove 211, which is close to the center of the upper die 2, is abutted with the inner hole wall of the silicon steel sheet, and burrs on the inner hole wall of the silicon steel sheet are cut off. The peripheral wall of the silicon steel sheet is in contact with the processing surface 212, and is pressed by the processing surface 212 to form a chamfer.

After the processing is finished, the cylinder 11 is contracted, the upper die 2 is driven to reset, the elastic piece 42 is driven to reset, the positioning block 41 and the step 412 are driven to reset, and at the moment, the processed silicon steel sheet can be taken out.

The embodiments of this embodiment are all preferred embodiments of the present application, and are not intended to limit the scope of the present application, in which like parts are denoted by like reference numerals. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A deburring tool comprising: frame (1), go up mould (2) and lower mould (3), its characterized in that: the upper die (2) is connected to the frame (1) in a sliding manner, and the lower die (3) is fixedly connected with the frame (1);

a positioning assembly (4) capable of positioning the silicon steel sheet is arranged on the top surface of the lower die (3);

the die is characterized in that a die (21) for removing burrs of the inner hole wall of the silicon steel sheet and chamfering the outer peripheral wall of the silicon steel sheet is arranged on the bottom surface of the upper die (2), a groove (211) is formed in the bottom surface of the die (21), and machining surfaces (212) are arranged at the intersections of two side surfaces of the groove (211).

2. The deburring tool as set forth in claim 1, wherein: the positioning assembly (4) comprises a positioning block (41) and an elastic piece (42), a plurality of blind holes (33) are formed in the top surface of the lower die (3), one positioning block (41) is arranged in each blind hole (33), and the positioning blocks (41) slide in the blind holes (33);

the elastic piece (42) is arranged between the inner wall of the blind hole (33) and the positioning block (41), one end of the elastic piece (42) is fixedly connected with the positioning block (41), and the other end of the elastic piece (42) is fixedly connected with the inner wall of the blind hole (33).

3. The deburring tool as set forth in claim 2, wherein: an arc-shaped groove (411) for assisting in positioning the silicon steel sheet is formed in the positioning block (41).

4. A deburring tool as claimed in claim 3 wherein: the inner wall of the arc-shaped groove (411) is fixedly connected with a step (412), and the height of the step (412) is smaller than that of the positioning block (41).

5. The deburring tool as set forth in claim 1, wherein: the die (21) is detachably connected with the upper die (2), and a locking piece (22) for fixing the die (21) is arranged between the die (21) and the upper die (2).

6. The deburring tool as set forth in claim 2, wherein: the upper die (2) is fixedly connected with a plurality of first positioning columns (23) on the bottom surface, a plurality of first positioning holes (31) are formed in the top surface of the lower die (3), and the first positioning columns (23) are matched with the first positioning holes (31).

7. The deburring tool as set forth in claim 6, wherein: the bottom surface of the first positioning column (23) is provided with a round angle surface (231).

8. The deburring tool as set forth in claim 6, wherein: the bottom surface of the die (21) is provided with a plurality of second positioning columns (213), and the height of each second positioning column (213) is lower than that of each first positioning column (23);

a plurality of second positioning holes (32) are formed in the top surface of the lower die (3), and the second positioning holes (32) are matched with the second positioning columns (213).