CN214517034U

CN214517034U - Motor iron core cold stamping trimming die

Info

Publication number: CN214517034U
Application number: CN202120055881.2U
Authority: CN
Inventors: 汪朝俊
Original assignee: Tonghe Precision Mould Changzhou Co ltd
Current assignee: Tonghe Precision Mould Changzhou Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-10-29
Anticipated expiration: 2031-01-08

Abstract

The utility model discloses a motor core cold stamping deburring mould relates to mould technical field, including the base, fixed surface installs the mould on the base, and the mould lower extreme is provided with fixing device, and the mould upper end is provided with power device, and fixing device is including interior fixing device, and interior fixing device movable mounting puts in bottom surface central point under the lower mould, and interior fixing device left and right sides just bottom surface movable mounting has outer fixing device under the lower mould, and outer fixing device left and right sides movable mounting has clamping device. The utility model discloses an increase outer trimming moulding-die and interior trimming moulding-die, realize two-way deburring for the deburring process is once accomplished, saves the deburring time, improves deburring efficiency, avoids one-way deburring to make the problem of repairing one side earlier and producing the burr simultaneously, increases fixing device, can once punch press on the earth when guaranteeing to go up the mould punching press, avoids changing after the deburring of upper end and presss from both sides the dress position and carry out the deburring again, saves time, raises the efficiency, simplifies technology simultaneously, one shot forming.

Description

Motor iron core cold stamping trimming die

Technical Field

The utility model relates to a mould relates to mould technical field, concretely relates to cold stamping trimming die of motor core.

Background

The cold stamping is a pressure processing method which applies pressure to a plate or a hot material on a press machine by utilizing a stamping die at normal temperature to cause the plate or the hot material to generate plastic deformation or separation so as to obtain a part with a required shape and size. The following problems exist in the prior art:

1. when the cold stamping technology is used for trimming, a one-way trimming mode is usually adopted, namely one side of the inner part and the outer part is firstly trimmed, and then the other side is stamped and trimmed, and the one-way trimming mode can cause that the trimmed side generates burrs again in the trimming process, so that the trimming operation process is increased and becomes more complicated;

2. when the material is fixed in the die, the fixing piece occupies a part of space, the upper die stamping equipment cannot reach the lowest end, the clamping position needs to be changed after the upper end is trimmed, and then trimming is carried out again, so that the process is complicated, and one-step forming cannot be carried out.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cold stamping trimming die for a motor iron core, which aims to have bidirectional trimming capability and solve the problem that burrs are generated on one side of the prior trimming due to unidirectional trimming; the other purpose is to solve the problem that the bottom cannot be punched at one time so as to achieve the effect of one-time forming.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

a cold stamping and trimming die for a motor iron core comprises a base, wherein a die is fixedly arranged on the upper surface of the base, a fixing device is arranged at the lower end of the die, and a power device is arranged at the upper end of the die;

the die comprises a lower die, the lower die is fixedly arranged on the upper surface of the base, and an upper die is movably arranged at the upper end of the lower die;

the fixing device comprises an inner fixing device, the inner fixing device is movably arranged at the center of the lower bottom surface of the lower die, outer fixing devices are movably arranged on the left side and the right side of the inner fixing device and on the lower bottom surface of the lower die, and clamping devices are movably arranged on the left side and the right side of the outer fixing device.

The utility model discloses technical scheme's further improvement lies in: the lower mould is including the lower mould shell, the inside lower mould inner chamber that is provided with of lower mould shell, surface central point puts fixed mounting has the reference column around the lower mould inner chamber.

The utility model discloses technical scheme's further improvement lies in: an inner trimming pressing die is fixedly arranged at the center of the lower bottom surface inside the upper die, outer trimming pressing dies are fixedly arranged on the left side and the right side of the inner trimming pressing die and on the bottom surface of the inner portion of the upper die, and positioning holes are formed in the front lower surface and the rear lower surface of the upper die.

The utility model discloses technical scheme's further improvement lies in: the power device comprises a stamping column, the stamping column is fixedly installed at the center of the upper surface of the upper die, demolding stamping columns are arranged on the left side and the right side of the stamping column, and demolding thimbles are fixedly installed at the lower ends of the demolding stamping columns.

The utility model discloses technical scheme's further improvement lies in: the clamping device comprises a fastening sleeve, the fastening sleeve is fixedly arranged on the surfaces of the left side and the right side of the lower die, a fastening bolt is sleeved on the internal thread of the fastening sleeve, and one end of the inner side of the fastening bolt is movably connected with a fastening pressing sheet.

The utility model discloses technical scheme's further improvement lies in: the outer fixing device comprises an outer fixing plate which is movably connected to the inner side surface of the fastening pressing plate, an outer movable groove is formed in the lower end of the outer fixing plate and in the lower surface of the lower die, and an outer reset spring is fixedly mounted on the bottom surface inside the outer movable groove.

The utility model discloses technical scheme's further improvement lies in: the inner fixing device comprises an inner fixing block, the inner fixing block is movably mounted at the center of the lower surface of the lower die, an inner moving groove is formed in the lower end of the inner fixing block and in the lower surface of the lower die, and an inner reset spring is fixedly mounted on the bottom surface inside the inner moving groove.

Owing to adopted above-mentioned technical scheme, the utility model discloses relative prior art, the technological progress who gains is:

1. the utility model provides a motor core cold stamping deburring mould, the utility model discloses increase outer trimming moulding-die and interior trimming moulding-die, during the deburring, fix motor core in the lower mould, drive whole last mould downstream by moulding-die punching press post, insert motor core inside earlier with interior trimming moulding-die and carry out inside deburring, can use outer trimming moulding-die to carry out outside deburring to motor core when continuing the downstream, two-way deburring makes the deburring process once accomplish, save the deburring time, improve deburring efficiency, avoid one-way deburring to make the problem of repairing one side earlier and producing the burr simultaneously, the deburring operation is simplified.

2. The utility model provides a cold stamping trimming die for motor iron core, the utility model discloses increase fixing device, interior fixing device and outer fixing device among the fixing device all can be in the lower mould activity from top to bottom, motor iron core puts into between outer fixed plate and the interior fixed block, screw up fastening bolt, make the fastening preforming hug closely outer fixed plate, prevent that outer fixed plate from rocking, later go up the mould and push down, can push down interior fixed block by interior trimming moulding-die at the in-process of pushing down, outer fixed plate is pushed down to exterior trimming moulding-die, make inside fixed block and outer fixed plate including the effect of reset spring and outer reset spring downstream, can once punch when guaranteeing to go up the mould punching press with this, avoid changing after the upper end deburring and press from both sides the dress position and carry out the deburring again, time saving, the efficiency is raised, the technology is simplified simultaneously, one shot forming.

Drawings

Fig. 1 is a schematic structural view of the present invention;

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

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

FIG. 4 is a schematic view of the structure of the power device of the present invention;

fig. 5 is a schematic structural view of the clamping device of the present invention;

fig. 6 is a schematic structural view of the external fixing device and the internal fixing device of the present invention.

In the figure: 1. a base; 2. a mold; 21. a lower die; 22. an upper die; 211. a lower die shell; 212. an inner cavity of the lower die; 213. a positioning column; 221. externally trimming and pressing the edges; 222. internally trimming the edge and pressing the die; 223. positioning holes;

3. a power plant; 31. pressing the die to punch the column; 32. demoulding the punching column; 33. demolding the thimble;

4. a fixing device; 41. a clamping device; 42. an external fixation device; 43. an internal fixation device; 411. fastening the sleeve; 412. fastening a bolt; 413. fastening the pressing sheet; 421. an outer fixing plate; 422. an outer movable groove; 423. an external reset spring; 431. an inner fixed block; 432. an inner movable groove; 433. an internal reset spring.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in fig. 1-6, the utility model provides a motor core cold stamping deburring mould, including base 1, fixed surface installs mould 2 on the base 1, and 2 lower extremes of mould are provided with fixing

device

4, and 2 upper ends of mould are provided with power device 3.

In the embodiment, the die 2 is responsible for shape limitation of the motor core, the fixing device 4 is used for fixing the motor core, and the power device 3 is used for power supply of stamping.

As shown in fig. 1-6, in the present embodiment, preferably, the lower mold 21 includes a lower mold housing 211, a lower mold cavity 212 is disposed inside the lower mold housing 211, a positioning post 213 is fixedly mounted at a central position of a front surface and a rear surface of the lower mold cavity 212, the power device 3 includes a stamping post 31, the stamping post 31 is fixedly mounted at a central position of an upper surface of the upper mold 22, stripping posts 32 are disposed at left and right sides of the stamping post 31, a stripping thimble 33 is fixedly mounted at a lower end of the stripping post 32, the positioning post 213 defines a position between the upper mold 22 and the lower mold 21 in cooperation with the positioning hole 223, the stamping post 31 drives the upper mold 22 to stamp, and the stripping post 32 drives the stripping thimble 33 to eject the punched and trimmed motor core out of the upper mold 22.

Example 2

As shown in fig. 1-6, on the basis of embodiment 1, the utility model provides a technical solution: preferably, the mold 2 includes a lower mold 21, the lower mold 21 is fixedly installed on the upper surface of the base 1, the upper mold 22 is movably installed at the upper end of the lower mold 21, an inner trimming pressing mold 222 is fixedly installed at the center position of the lower bottom surface inside the upper mold 22, outer trimming pressing molds 221 are fixedly installed on the left side and the right side of the inner trimming pressing mold 222 and on the bottom surface inside the upper mold 22, positioning holes 223 are formed in the front lower surface and the rear lower surface of the upper mold 22, the motor core is fixed in the lower mold 21, the whole upper mold 22 is driven by a pressing mold punching column 31 to move downwards, the inner trimming pressing mold 222 is firstly inserted into the motor core to perform inner trimming, the outer trimming pressing mold 221 is used for performing outer trimming on the motor core when the downward movement is continued, the bidirectional trimming process is completed at one time, trimming time is saved, and trimming efficiency is improved.

Example 3

As shown in fig. 1-6, on the basis of embodiment 1, the utility model provides a technical solution: preferably, the fixing device 4 comprises an inner fixing device 43, the inner fixing device 43 is movably mounted at the center of the lower bottom surface of the lower die 21, the outer fixing device 42 is movably mounted at the left and right sides of the inner fixing device 43 and at the lower bottom surface of the lower die 21, the clamping device 41 is movably mounted at the left and right sides of the outer fixing device 42, the clamping device 41 comprises a fastening sleeve 411, the fastening sleeve 411 is fixedly mounted on the left and right side surfaces of the lower die 21, a fastening bolt 412 is sleeved on the internal thread of the fastening sleeve 411, one end of the internal side of the fastening bolt 412 is movably connected with a fastening pressing sheet 413, the outer fixing device 42 comprises an outer fixing plate 421, the outer fixing plate 421 is movably connected to the internal side surface of the fastening pressing sheet 413, an outer movable groove 422 is formed at the lower end of the outer fixing plate 421 and at the lower surface of the lower die 21, an outer return spring 423 is fixedly mounted at the bottom surface of the internal movable groove 422, the inner fixing device 43 comprises an inner fixing block 431, the inner fixed block 431 is movably arranged at the center of the lower surface of the lower die 21, the lower end of the inner fixed block 431 is provided with an inner movable groove 432 on the lower surface of the lower die 21, the inner bottom surface of the inner movable groove 432 is fixedly provided with an inner return spring 433, the inner fixing device 43 and the outer fixing device 42 in the fixing device 4 can move up and down in the lower die 21, a motor iron core is placed between the outer fixed plate 421 and the inner fixed block 431, the fastening bolt 412 is screwed down to enable the fastening pressing sheet 413 to be tightly attached to the outer fixed plate 421 to prevent the outer fixed plate 421 from shaking, then the upper die 22 is pressed down, the inner fixed block 431 is pressed down by the inner trimming pressing die 222 and the outer trimming pressing die 221 presses down the outer fixed plate 421 to enable the inner fixed block 431 and the outer fixed plate 421 to move downwards under the action of the inner return spring 433 and the outer return spring 423 during pressing, so as to ensure that the bottom of the upper die 22 can be pressed once, the situation that the clamping position is not changed and the trimming is carried out again after the upper end is trimmed is carried out, time is saved, and efficiency is improved.

The working principle of the cold stamping and trimming die for the motor iron core is described in detail below.

As shown in fig. 1-6, the motor core is placed between the outer fixing plate 421 and the inner fixing block 431, the fastening bolt 412 is tightened to make the fastening pressing piece 413 tightly contact the outer fixing plate 421 to prevent the outer fixing plate 421 from shaking, then the entire upper die 22 is driven by the die punching column 31 to move downwards, the inner trimming die 222 is inserted into the motor core for internal trimming, the outer trimming die 221 is used for external trimming of the motor core when continuing to move downwards, the inner fixing block 431 is pressed downwards by the inner trimming die 222 during the pressing process, the outer trimming die 221 presses the outer fixing plate 421 downwards, so that the inner fixing block 431 and the outer fixing plate 421 move downwards under the action of the inner return spring 433 and the outer return spring 423, and thus the upper die 22 can be pressed to the bottom at one time during the pressing process.

The present invention has been described in detail with reference to the above general description, but it will be apparent to one of ordinary skill in the art that modifications and improvements can be made to the invention. Therefore, modifications or improvements without departing from the spirit of the invention are within the scope of the invention.

Claims

1. The utility model provides a motor core cold stamping deburring mould, includes base (1), its characterized in that: a mould (2) is fixedly arranged on the upper surface of the base (1), a fixing device (4) is arranged at the lower end of the mould (2), and a power device (3) is arranged at the upper end of the mould (2);

the die (2) comprises a lower die (21), the lower die (21) is fixedly arranged on the upper surface of the base (1), and an upper die (22) is movably arranged at the upper end of the lower die (21);

fixing device (4) including interior fixing device (43), bottom surface central point puts under interior fixing device (43) movable mounting lower mould (21), interior fixing device (43) left and right sides and bottom surface movable mounting have outer fixing device (42) under lower mould (21), outer fixing device (42) left and right sides movable mounting has clamping device (41).

2. The cold stamping and trimming die for the motor iron core according to claim 1, wherein: lower mould (21) is including lower mould shell (211), lower mould inner chamber (212) are provided with in lower mould shell (211), surface central point puts fixed mounting has reference column (213) around lower mould inner chamber (212).

3. The cold stamping and trimming die for the motor iron core according to claim 1, wherein: an inner trimming pressing die (222) is fixedly mounted at the center of the lower bottom surface inside the upper die (22), outer trimming pressing dies (221) are fixedly mounted on the left side and the right side of the inner trimming pressing die (222) and on the bottom surface inside the upper die (22), and positioning holes (223) are formed in the front lower surface and the rear lower surface of the upper die (22).

4. The cold stamping and trimming die for the motor iron core according to claim 1, wherein: the power device (3) comprises a stamping column (31), the stamping column (31) is fixedly installed at the center of the upper surface of the upper die (22), demolding stamping columns (32) are arranged on the left side and the right side of the stamping column (31), and demolding thimbles (33) are fixedly installed at the lower ends of the demolding stamping columns (32).

5. The cold stamping and trimming die for the motor iron core according to claim 1, wherein: the clamping device (41) comprises a fastening sleeve (411), the fastening sleeve (411) is fixedly installed on the surfaces of the left side and the right side of the lower die (21), a fastening bolt (412) is sleeved on the internal thread of the fastening sleeve (411), and one end of the inner side of the fastening bolt (412) is movably connected with a fastening pressing sheet (413).

6. The cold stamping and trimming die for the motor iron core according to claim 1, wherein: the outer fixing device (42) comprises an outer fixing plate (421), the outer fixing plate (421) is movably connected to the inner side surface of the fastening pressing plate (413), an outer movable groove (422) is formed in the lower end of the outer fixing plate (421) and in the lower surface of the lower die (21), and an outer reset spring (423) is fixedly installed on the inner bottom surface of the outer movable groove (422).

7. The cold stamping and trimming die for the motor iron core according to claim 1, wherein: the inner fixing device (43) comprises an inner fixing block (431), the inner fixing block (431) is movably mounted at the center of the lower surface of the lower die (21), an inner moving groove (432) is formed in the lower end of the inner fixing block (431) and in the lower surface of the lower die (21), and an inner return spring (433) is fixedly mounted on the inner bottom surface of the inner moving groove (432).