CN112366909A

CN112366909A - Horizontal riveting device of motor

Info

Publication number: CN112366909A
Application number: CN202011409844.3A
Authority: CN
Inventors: 王守生; 梁启进
Original assignee: Guangdong Huilipu Intelligent Technology Co ltd
Current assignee: Guangdong Huilipu Intelligent Technology Co ltd
Priority date: 2020-12-04
Filing date: 2020-12-04
Publication date: 2021-02-12

Abstract

The invention discloses a transverse riveting device of a motor, which comprises a clamping jig for clamping the motor, a positioning mechanism which can vertically move relative to the motor and extend into the opening part of a bottom shell of the motor and can abut against the inner wall of the bottom shell, and a top punching mechanism which can radially move relative to the motor after the positioning mechanism positions the bottom shell of the motor so as to punch a preset part of the bottom shell and bend the punched part of the bottom shell towards the inner side of the bottom shell and is fastened to a motor end cover. Prevent that the inside components and parts of motor from being harmed, still have work efficiency height simultaneously, characteristics that the yield is high.

Description

Horizontal riveting device of motor

[ technical field ] A method for producing a semiconductor device

The invention relates to a horizontal riveting device of a motor.

[ background of the invention ]

Motor casing on the existing market includes drain pan and end cover, and the end cover is riveted on the drain pan through the riveting mode, however, current riveting device is when riveting end cover and drain pan together, riveting device's the vertical roof pressure drain pan of riveting part usually, it has the block tongue to make to be cut out on the drain pan, simultaneously with riveting part roof pressure block tongue toward the inboard bending of drain pan and with drain pan and end cover riveting together, this kind of riveting mode can cause drain pan or end cover to receive great riveting pressure all the time at riveting during operation, make drain pan or end cover take place deformation and toward the inboard sunken of drain pan, thereby extrude the inside components and parts of harm motor casing, lead to at the bottom of the finished product power and manufacturing cost height.

Meanwhile, the existing riveting device is complex in structure and low in working efficiency.

Therefore, the present invention has been made in view of the above problems.

[ summary of the invention ]

The invention aims to overcome the defects of the prior art, and provides a transverse riveting device of a motor, which can solve the problems in the prior art, and the transverse riveting device of the motor can extend into the opening part of a bottom shell of the motor and can be abutted against the inner wall of the bottom shell through the vertical movement of a positioning mechanism relative to the motor, and a punching mechanism moves radially relative to the motor to punch a preset part of the bottom shell and bend the punched part of the bottom shell towards the inner side of the bottom shell to be buckled on a motor end cover, so that the bottom shell and the end cover can be prevented from deforming during riveting operation, and internal components of the motor are prevented from being damaged.

The invention is realized by the following technical scheme:

a horizontal riveting device of a motor comprises a clamping jig 31 for clamping the motor 100 and a positioning mechanism 10 which can vertically move relative to the motor 100, stretch into an opening part of a bottom shell 110 of the motor 100 and abut against the inner wall of the bottom shell 110, and further comprises an ejection mechanism 20 which can radially move relative to the motor 100 after the positioning mechanism 10 positions the bottom shell 110 of the motor 100 so as to eject a preset part 111 of the bottom shell 110 and enable the ejected part of the bottom shell 110 to bend towards the inner side of the bottom shell 110 and be fastened to an end cover 120 of the motor 100.

The transverse riveting device of the motor is characterized by further comprising a lower die table 3, wherein the clamping jig 31 is arranged on the lower die table 3; the positioning mechanism 10 comprises an upper die assembly, the upper die assembly comprises a middle die table 2 capable of moving up and down relative to a lower die table 3, an upper die table 1 capable of moving up and down relative to the lower die table 3 together with the middle die table 2 and moving up and down relative to the middle die table 2 independently is connected above the middle die table 2, the punching and ejecting mechanism 20 is connected on the upper die table 1, and when the upper die table 1 moves relative to the middle die table 2, the punching and ejecting mechanism 20 can move radially relative to the motor 100 to punch and eject a preset part 111 of the bottom shell 110; the positioning mechanism 10 further includes a positioning column 101 disposed between the upper mold table 1 and the middle mold table 2, and extending into the opening of the bottom shell 110 of the motor 100 and abutting against the inner wall of the bottom shell 110 when the upper mold assembly moves vertically relative to the motor 100.

The transverse riveting device for the motor is characterized in that the positioning column 101 is provided with a positioning hole 1011 for allowing the output shaft 130 of the motor 100 to penetrate into and be positioned when the upper die assembly moves vertically relative to the motor 100.

The transverse riveting device for the motor is characterized in that the positioning column 101 is slidably connected to the middle die table 2, and a positioning column spring 1012 which can prevent the positioning column 101 from moving when the positioning column 101 extends into the opening of the bottom shell 110 is arranged between the positioning column 101 and the upper die table 1.

The horizontal riveting device for the motor is characterized in that a screw rod 11 is arranged between the upper die table 1 and the middle die table 2, the lower end of the screw rod 11 is in threaded connection with the middle die table 2, the upper portion of the screw rod 11 penetrates through the upper die table 1 to enable the upper die table 1 to be in sliding connection with the screw rod 11, an elastic piece 12 is sleeved on the screw rod 11, the upper end of the elastic piece 12 is connected with the upper die table 1, and the lower end of the elastic piece 12 is connected with the middle die table 2.

The motor horizontal riveting device is characterized in that the middle die table 2 is provided with a mandril 27 which can be pressed against the lower die table 3 when the positioning column 101 extends into the opening of the bottom shell 110 of the motor 100 and is pressed against the inner wall of the bottom shell 110, so that the middle die table 2 is fixed relative to the lower die table 1.

The transverse riveting device of the motor is characterized in that the top punching mechanism 20 comprises a radial sliding hole 21 arranged on the middle die table 2, a sliding block 22 is connected in the radial sliding hole 21 in a sliding manner, a cutter 23 is fixedly connected to the outer end of the sliding block 22, a cutting edge 231 capable of abutting against the preset part 111 of the bottom shell 110 is arranged on the cutter 23, the cutting edge 231 is arranged in an inclined manner, and an avoiding groove 1013 aligned with the cutter 23 is arranged on the positioning column 101; the middle die table 2 is provided with a vertical sliding hole 24 communicated with the radial sliding hole 21, a driving block 25 is connected in the vertical sliding hole 24 in a sliding mode, one end, far away from the sliding block 22, of the driving block 25 is fixedly connected with the upper die table 1 relatively and moves along with the upper die table, and a driving structure 26 capable of driving the sliding block 22 to move radially relative to the middle die table 2 when the driving block 25 moves vertically relative to the middle die table 2 is arranged between the driving block 25 and the sliding block 22.

The electric cross riveting device is characterized in that the driving structure 26 comprises a driving guide inclined surface 261 arranged at one end of the driving block 25 close to the sliding block 22, and a sliding guide inclined surface 262 which can be matched with the driving guide inclined surface 261 and can enable the sliding block 22 to move radially relative to the middle die table 2 is arranged at one end of the sliding block 22 close to the driving block 25.

The transverse riveting device for the motor is characterized in that a sliding block return spring 221 which can enable the sliding block 22 to return relative to the middle die table 2 after the cutting knife 23 enables the pushed part of the bottom shell 110 to bend towards the inner side of the bottom shell 110 and is buckled on the end cover 120 of the motor 100 is arranged between the sliding block 22 and the middle die table 2.

The transverse riveting device for the motor is characterized in that at least two groups of ejection mechanisms 20 are arranged, and the two groups of ejection mechanisms 20 are arranged outside the positioning column 101 along the circumferential direction of the positioning column 101.

Compared with the prior art, the invention has the following advantages:

1. the invention comprises a clamping jig for clamping a motor, a positioning mechanism which can move vertically relative to the motor and extend into the opening part of a bottom shell of the motor and can abut against the inner wall of the bottom shell, and a top punching mechanism which can move radially relative to the motor after the positioning mechanism positions the bottom shell of the motor so as to punch a preset part of the bottom shell and bend the punched part of the bottom shell towards the inner side of the bottom shell and is fastened to a motor end cover, wherein when the device works, the positioning mechanism is driven to move vertically relative to the motor and extend into the opening part of the bottom shell of the motor and can abut against the inner wall of the bottom shell, then the top punching mechanism is driven to move radially relative to the motor so as to punch the preset part of the bottom shell and bend the punched part of the bottom shell towards the inner side of the bottom shell and be fastened to a motor end cover, so that the bottom shell and the end cover cannot, meanwhile, the device has the characteristics of reasonable design, high working efficiency and high yield.

2. In order to enable the top punching mechanism to punch the preset part of the bottom shell more accurately and stably and improve the stability of the top punching mechanism, and meanwhile, when the top punching mechanism works, components inside the motor are prevented from shaking, and the positioning column is provided with a positioning hole for the output shaft of the motor to penetrate into for positioning when the upper die assembly moves vertically relative to the motor.

3. When carrying out riveting during operation, in order to prevent the reference column drunkenness, ensure that reference column lateral wall and drain pan inside wall are stable to be leaned on, the reference column is connected on middle mould platform with sliding, be equipped with the reference column spring that can prevent the reference column drunkenness when the reference column stretches into drain pan oral area between reference column and the last mould platform.

4. In order to reduce the production cost of the horizontal riveting device, the middle die table is provided with an ejector rod which can push the lower die table to fix the middle die table relative to the lower die table when the positioning column stretches into the opening part of the motor bottom shell and pushes against the inner wall of the bottom shell.

5. A sliding block return spring which is used as a cutter to bend the part of the bottom shell which is punched to be jacked towards the inner side of the bottom shell and is buckled on the motor end cover to enable the sliding block to return relative to the middle die table is arranged between the sliding block and the middle die table; after the work of the punching mechanism is finished, the sliding block reset spring can reset the sliding block relative to the middle die table, and the punching mechanism has the characteristics of reasonable design and high working efficiency.

6. The punching and jacking mechanisms are at least two groups, and the two groups of punching and jacking mechanisms are arranged on the outer sides of the positioning columns along the circumferential direction of the positioning columns; when the punching and jacking device is used for punching and jacking, the bottom shell can be uniformly stressed, the bottom shell is prevented from deforming, and the punching and jacking working efficiency and automation can be improved.

[ description of the drawings ]

The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:

fig. 1 is a perspective view of the present invention.

FIG. 2 is a bottom view of the upper die assembly of the present invention.

Fig. 3 is a cross-sectional view a-a of fig. 2.

Fig. 4 is an enlarged schematic view of B in fig. 3.

Fig. 5 is one of the exploded views of the present invention.

Fig. 6 is an exploded view of the second embodiment of the present invention.

Fig. 7 is a schematic view of an intermediate mold table of the present invention.

Fig. 8 is a schematic structural view of the ram mechanism of the present invention.

Fig. 9 is a schematic diagram of the positional relationship between the punch mechanism and the bottom case of the motor according to the present invention.

Fig. 10 is a schematic view of a lower die table of the present invention.

Fig. 11 is a schematic view of the initial state among the upper mold table, the middle mold table and the lower mold table of the present invention.

FIG. 12 is a schematic view of the positioning mechanism of the present invention in a use state extending into the opening of the bottom casing of the motor and abutting against the inner wall of the bottom casing.

Fig. 13 is a schematic view of the use state of the ejection mechanism of the present invention in which the predetermined portion of the bottom case is ejected and the ejected portion of the bottom case is bent toward the inner side of the bottom case and fastened to the motor end cap.

Fig. 14 is a schematic view of the motor of the present invention.

[ detailed description ] embodiments

Embodiments of the present invention will be described in detail below with reference to fig. 1-14.

As shown in fig. 1 to 14, the horizontal riveting device for a motor of the present invention includes a clamping fixture 31 for clamping the motor 100, and a positioning mechanism 10 capable of moving vertically relative to the motor 100 to extend into an opening of the bottom casing 110 of the motor 100 and abut against an inner wall of the bottom casing 110, and further includes a top punching mechanism 20 capable of moving radially relative to the motor 100 to punch a predetermined portion 111 of the bottom casing 110 and bend a top punched portion of the bottom casing 110 toward an inner side of the bottom casing 110 to be fastened to an end cover 120 of the motor 100 after the positioning mechanism 10 positions the bottom casing 110 of the motor 100. The external driving device drives the positioning mechanism 10 to vertically move relative to the motor 100 to extend into the opening of the bottom shell 110 of the motor 100 and abut against the inner wall of the bottom shell 110, and then drives the ejection mechanism 20 to radially move relative to the motor 100 to eject the preset part 111 of the bottom shell 110 and bend the ejected part of the bottom shell 110 towards the inner side of the bottom shell 110 to be fastened on the end cover 120 of the motor 100, so that the bottom shell 110 and the end cover 120 are prevented from deforming during riveting operation, internal components of the motor 100 are prevented from being damaged, and the external driving device has the characteristics of reasonable design, high working efficiency and high yield.

The clamping fixture 31 is arranged on the lower die table 3; the positioning mechanism 10 comprises an upper die assembly, the upper die assembly comprises a middle die table 2 capable of moving up and down relative to a lower die table 3, an upper die table 1 capable of moving up and down relative to the lower die table 3 together with the middle die table 2 and moving up and down relative to the middle die table 2 independently is connected above the middle die table 2, the punching and ejecting mechanism 20 is connected on the upper die table 1, and when the upper die table 1 moves relative to the middle die table 2, the punching and ejecting mechanism 20 can move radially relative to the motor 100 to punch and eject a preset part 111 of the bottom shell 110; the positioning mechanism 10 further includes a positioning column 101 disposed between the upper mold table 1 and the middle mold table 2, and extending into the opening of the bottom shell 110 of the motor 100 and abutting against the inner wall of the bottom shell 110 when the upper mold assembly moves vertically relative to the motor 100. During operation, the external driving device drives the upper die assembly to vertically move relative to the lower die table, that is, the upper die assembly moves toward one side of the motor on the clamping fixture, then the middle die table 2 abuts against the lower die table 3 to fix the middle die table 2 relative to the lower die table 3, meanwhile, the positioning column 101 extends into the mouth of the bottom shell 110 of the motor 100 and the outer side wall of the positioning column 101 abuts against the inner side wall of the bottom shell 110, then the driving device continues to drive the upper die assembly to move toward one side of the lower die table 3, that is, the upper die table 1 moves relative to the middle die table 2, and simultaneously, the upper die table 1 drives the ejection mechanism 20 to radially move relative to the motor 100 to eject the preset part 111 of the bottom shell 110 and bend the ejected part of the bottom shell 110 toward the inner side.

In order to make to dash and to push up the mechanism and can more accurately, steadily dash the position of predetermineeing of pushing up the drain pan, simultaneously at the during operation that pushes up, prevent that the inside components and parts of motor from rocking, be equipped with on the reference column 101 and supply motor 100 output shaft 130 to penetrate the locating hole 1011 of location when the relative motor 100 vertical motion of last die assembly.

When riveting work is carried out, in order to prevent the positioning column from moving and ensure that the outer side wall of the positioning column is stably abutted against the inner side wall of the bottom shell, the positioning column 101 is connected on the middle die table 2 in a sliding manner, and a positioning column spring 1012 which can prevent the positioning column 101 from moving when the positioning column 101 extends into the opening part of the bottom shell 110 is arranged between the positioning column 101 and the upper die table 1.

According to the design demand, be equipped with screw rod 11 between last mould platform 1 and the

middle mould platform

2, 11 lower extremes of screw rod and 2 threaded connection of middle mould platform, 11 upper portions of screw rod pass last mould platform 1 and make and go up mould platform 1 and can follow screw rod 11 sliding connection, the cover is equipped with elastic component 12 on the screw rod 11, elastic component 12 upper end is connected with last mould platform 1, elastic component 12 lower extreme is connected with middle mould platform 2.

In order to reduce the production cost of the horizontal riveting device, the middle mold table 2 is provided with a mandril 27 which can be pressed against the lower mold table 3 when the positioning column 101 extends into the opening of the bottom shell 110 of the motor 100 and is pressed against the inner wall of the bottom shell 110, so that the middle mold table 2 is fixed relative to the lower mold table 1.

The top punching mechanism 20 comprises a radial sliding hole 21 arranged on the middle die table 2, a sliding block 22 is connected in the radial sliding hole 21 in a sliding manner, a cutter 23 is fixedly connected to the outer end of the sliding block 22, a cutting edge 231 capable of abutting against the preset part 111 of the bottom shell 110 is arranged on the cutter 23, the cutting edge 231 is arranged in an inclined manner, and an avoiding groove 1013 aligned with the cutter 23 is arranged on the positioning column 101; the middle die table 2 is provided with a vertical sliding hole 24 communicated with the radial sliding hole 21, a driving block 25 is connected in the vertical sliding hole 24 in a sliding mode, one end, far away from the sliding block 22, of the driving block 25 is fixedly connected with the upper die table 1 relatively and moves along with the upper die table, and a driving structure 26 capable of driving the sliding block 22 to move radially relative to the middle die table 2 when the driving block 25 moves vertically relative to the middle die table 2 is arranged between the driving block 25 and the sliding block 22. When the machine works, the external driving device drives the upper die assembly to move vertically relative to the lower die table, namely the upper die assembly moves towards one side of the motor on the clamping jig, then the middle die table 2 abuts against the lower die table 3 to enable the middle die table 2 to be fixed relative to the lower die table 3, meanwhile, the positioning column 101 extends into the mouth part of the bottom shell 110 of the motor 100 and the outer side wall of the positioning column 101 abuts against the inner side wall of the bottom shell 110, the cutting edge 231 of the cutting knife 23 abuts against or is aligned with the preset part 111 of the bottom shell 110 in a radial direction, then the driving device continuously drives the upper die assembly to move towards one side of the lower die table 3, namely the upper die table 1 moves relative to the middle die table 2, meanwhile, the upper die table 1 drives the driving block 25 to move downwards relative to the middle die table 3 to drive the sliding block 22 to move radially relative to the middle die table 3, namely, the cutting edge 231 of the cutting knife 23 moves radially towards, until it snaps onto the end cap 120 of the motor 100.

According to the design requirement, and in order to make the punching mechanism work more stably, the driving structure 26 includes a driving guide inclined plane 261 provided on the end of the driving block 25 close to the sliding block 22, and a sliding guide inclined plane 262 capable of cooperating with the driving guide inclined plane 261 and making the sliding block 22 move radially relative to the intermediate die table 2 is provided on the end of the sliding block 22 close to the driving block 25.

A sliding block return spring 221 is arranged between the sliding block 22 and the intermediate die table 2, and can enable the sliding block 22 to return relative to the intermediate die table 2 after the cutting knife 23 enables the pushed part of the bottom shell 110 to bend towards the inner side of the bottom shell 110 and is buckled on the end cover 120 of the motor 100. After the work of the punching mechanism is finished, the sliding block reset spring can reset the sliding block relative to the middle die table, and the punching mechanism has the characteristics of reasonable design and high working efficiency.

At least two groups of the ejection mechanisms 20 are provided, and the two groups of the ejection mechanisms 20 are arranged outside the positioning columns 101 along the circumferential direction of the positioning columns 101. When the punching and jacking device is used for punching and jacking, the bottom shell can be uniformly stressed, the bottom shell is prevented from deforming, and the punching and jacking working efficiency and automation can be improved.

The working principle is as follows:

during operation, the external driving device drives the upper mold assembly to move vertically relative to the lower mold table, i.e. the upper mold assembly moves toward one side of the motor on the clamping fixture, then the middle mold table 2 abuts against the lower mold table 3 to fix the middle mold table 2 relative to the lower mold table 3, meanwhile, the positioning post 101 extends into the mouth of the bottom shell 110 of the motor 100 and the outer side wall of the positioning post 101 abuts against the inner side wall of the bottom shell 110, and the cutting edge 231 of the cutting knife 23 abuts against or is aligned with the preset part 111 of the bottom shell 110, then the driving device continues to drive the upper mold assembly to move toward one side of the lower mold table, i.e. the upper mold table 1 moves relative to the middle mold table 2, meanwhile, the upper mold table 1 drives the driving block 25 to move downward relative to the middle mold table 3 so as to drive the guiding inclined plane 261 to cooperate with the sliding guiding inclined plane 262 to drive the sliding block 22, and the punching top preset part 111 is bent into the avoiding groove 1013 towards the inner side of the bottom shell 110 until being buckled on the end cover 120 of the motor 100, so that when the punching top works, the outer side wall of the positioning column 101 is abutted against the inner side wall of the bottom shell 110, so that the cutting edge 230 of the cutting knife 23 can ensure that the bottom shell 110 cannot deform when being punched by the cutting knife 23 at the time of punching the preset part 111 of the bottom shell 110, and the punching top machine has the characteristics of reasonable design, high working efficiency and high yield.

Claims

1. The utility model provides a device is riveted violently to motor, its characterized in that is including clamping tool (31) that are used for clamping motor (100) and can stretch into motor (100) drain pan (110) oral area and can support by positioning mechanism (10) of drain pan (110) inner wall relative to motor (100) vertical motion, the device is riveted violently still includes and can be relative motor (100) radial motion after positioning mechanism (10) to motor (100) drain pan (110) with dashing preset position (111) of top drain pan (110) and make on drain pan (110) towards the position of top bend towards drain pan (110) inboard and lock joint to motor (100) end cover (120) towards top mechanism (20).

2. The cross riveting device of the motor is characterized by further comprising a lower die table (3), wherein the clamping jig (31) is arranged on the lower die table (3); the positioning mechanism (10) comprises an upper die assembly, the upper die assembly comprises a middle die table (2) capable of moving up and down relative to a lower die table (3), an upper die table (1) capable of moving up and down relative to the lower die table (3) together with the middle die table (2) and moving up and down relative to the middle die table (2) independently is connected above the middle die table (2), the punching and ejecting mechanism (20) is connected to the upper die table (1), and when the upper die table (1) moves relative to the middle die table (2), the punching and ejecting mechanism (20) can move radially relative to the motor (100) to punch a preset part (111) of the bottom shell (110); the positioning mechanism (10) further comprises a positioning column (101) which is arranged between the upper die table (1) and the middle die table (2) and extends into the opening part of the bottom shell (110) of the motor (100) when the upper die assembly moves vertically relative to the motor (100) and can abut against the inner wall of the bottom shell (110).

3. The horizontal riveting device of the motor according to claim 2, wherein the positioning column (101) is provided with a positioning hole (1011) for the output shaft (130) of the motor (100) to penetrate into and be positioned when the upper die assembly moves vertically relative to the motor (100).

4. The cross riveting device of the motor according to claim 2, characterized in that the positioning column (101) is slidably connected to the middle die table (2), and a positioning column spring (1012) capable of preventing the positioning column (101) from moving when the positioning column (101) extends into the mouth of the bottom shell (110) is arranged between the positioning column (101) and the upper die table (1).

5. The horizontal riveting device of the motor according to claim 2, characterized in that a screw (11) is arranged between the upper die table (1) and the middle die table (2), the lower end of the screw (11) is in threaded connection with the middle die table (2), the upper part of the screw (11) penetrates through the upper die table (1) to enable the upper die table (1) to be in sliding connection along the screw (11), an elastic member (12) is sleeved on the screw (11), the upper end of the elastic member (12) is connected with the upper die table (1), and the lower end of the elastic member (12) is connected with the middle die table (2).

6. The horizontal riveting device of the motor according to claim 2, characterized in that the middle die table (2) is provided with a mandril (27) which can be pressed against the lower die table (3) when the positioning column (101) extends into the mouth of the bottom shell (110) of the motor (100) and abuts against the inner wall of the bottom shell (110) so as to fix the middle die table (2) relative to the lower die table (1).

7. The cross riveting device of the motor according to any one of claims 2-6, wherein the punching and jacking mechanism (20) comprises a radial sliding hole (21) arranged on the middle die table (2), a sliding block (22) is slidably connected in the radial sliding hole (21), a cutter (23) is fixedly connected to the outer end of the sliding block (22), a cutting edge (231) capable of abutting against a preset part (111) of the bottom shell (110) is arranged on the cutter (23), the cutting edge (231) is obliquely arranged, and an avoiding groove (1013) aligned with the cutter (23) is arranged on the positioning column (101); be equipped with on middle mould platform (2) with radial sliding hole (21) communicating vertical sliding hole (24), sliding connection has drive block (25) in vertical sliding hole (24), sliding block (22) one end is kept away from in drive block (25) and last mould platform (1) relatively fixed connection and along with its motion, be equipped with between drive block (25) and sliding block (22) and order about sliding block (22) relative middle mould platform (2) radial motion's drive structure (26) when drive block (25) relative middle mould platform (2) vertical motion.

8. A device according to claim 7, characterized in that said driving structure (26) comprises a driving guide ramp (261) provided on the end of the driving block (25) close to the sliding block (22), said end of the sliding block (22) close to the driving block (25) being provided with a sliding guide ramp (262) able to cooperate with the driving guide ramp (261) and to cause the sliding block (22) to move radially with respect to the intermediate die table (2).

9. The cross riveting device of the motor according to claim 7, characterized in that a sliding block return spring (221) which can enable the sliding block (22) to return relative to the middle die table (2) after the cutting knife (23) enables the part of the bottom shell (110) which is punched to bend towards the inner side of the bottom shell (110) and is buckled on the end cover (120) of the motor (100) is arranged between the sliding block (22) and the middle die table (2).

10. The horizontal riveting device of the motor according to claim 7, wherein the punching mechanisms (20) have at least two groups, and the two groups of punching mechanisms (20) are arranged outside the positioning column (101) along the circumferential direction of the positioning column (101).