A horizontal riveting device for a motor
By designing the positioning and top punching mechanism of the transverse rivet device in the motor, the problem of deformation of the bottom shell or end cover during the riveting process is solved, and stable and efficient riveting pressure is achieved, production costs are reduced and yield is improved.
Patent Information
- Application Number
- CN202011409844.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-12-04
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2040-12-04
AI Technical Summary
The existing motor riveting device causes deformation of the bottom shell or end cap during riveting, damages components, and has complex structure and low working efficiency, which increases the challenges of production costs and yield.
A horizontal rivet device is designed, including a positioning mechanism and a top punching mechanism, which extends into the bottom shell mouth against the inner wall of the bottom shell through vertical movement with respect to the motor, and in radial movement, the bottom shell is preset to bending the inner side of the bottom shell. Cable to the end cap to avoid deformation while improving work efficiency and yield.
It ensures the stability of the bottom shell and end cap during the riveting process, prevents components from being damaged, reduces production costs, improves work efficiency and yield, and has a rational structure.
Smart Images
Figure CN112366909B_ABST
Abstract
Description
[Technical field]
[0001] The invention relates to a transverse riveting device for a motor. [Background technology]
[0002] The motor housing on the market currently includes a bottom shell and an end cover, and the end cover is riveted to the bottom shell by riveting. However, when the existing riveting device rivets the end cover and the bottom shell together, the riveting component of the riveting device usually presses the bottom shell vertically, so that a tongue is punched out on the bottom shell, and at the same time, the riveting component presses the tongue toward the inside of the bottom shell to bend the bottom shell and rivet the bottom shell and the end cover together. This riveting method will cause the bottom shell or the end cover to be always subjected to a large riveting pressure during the riveting operation, causing the bottom shell or the end cover to deform and sink toward the inside of the bottom shell, thereby squeezing and damaging the components inside the motor housing, resulting in low finished product strength and high production costs.
[0003] Meanwhile, the existing riveting devices have the problems of complex structure and low working efficiency.
[0004] Therefore, the present invention is studied and proposed in view of the above problems. [Summary of the invention]
[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a transverse riveting device for a motor, which can improve the problems existing in the prior art, and through the vertical movement of the positioning mechanism relative to the motor, it extends into the opening of the motor bottom shell and can abut against the inner wall of the bottom shell, and the punching mechanism moves radially relative to the motor to punch a preset position of the bottom shell and make the punched position on the bottom shell bend toward the inside of the bottom shell and buckle onto the motor end cover, thereby ensuring that the bottom shell and the end cover will not be deformed during the riveting work, preventing the internal components of the motor from being damaged, and at the same time it has the characteristics of high working efficiency and high yield.
[0006] The present invention is achieved through the following technical solutions:
[0007] A transverse riveting device for a motor includes a clamping fixture 31 for clamping a motor 100 and a positioning mechanism 10 that can move vertically relative to the motor 100 to extend into the opening of a bottom shell 110 of the motor 100 and can abut against the inner wall of the bottom shell 110. The transverse riveting device also includes a punching mechanism 20 that can move radially relative to the motor 100 after the positioning mechanism 10 positions the bottom shell 110 of the motor 100 to punch a preset position 111 of the bottom shell 110 and make the punched position on the bottom shell 110 bend toward the inside of the bottom shell 110 and buckle to the end cover 120 of the motor 100.
[0008] A transverse riveting device for a motor as described above is characterized in that it also includes a lower die table 3, and the clamping fixture 31 is arranged on the lower die table 3; the positioning mechanism 10 includes an upper die assembly, and the upper die assembly includes an intermediate die table 2 that can move up and down relative to the lower die table 3, and the upper die table 1 is connected to the upper part of the intermediate die table 2, which can move up and down relative to the lower die table 3 together with the intermediate die table 2 and can move up and down relative to the intermediate die table 2 alone, and the punching mechanism 20 is connected to the upper die table 1, and when the upper die table 1 moves relative to the intermediate die table 2, the punching mechanism 20 can move radially relative to the motor 100 and punch the preset position 111 of the bottom shell 110; the positioning mechanism 10 also includes a positioning column 101 that is arranged between the upper die table 1 and the intermediate die table 2 and extends into the mouth of the bottom shell 110 of the motor 100 and can abut against the inner wall of the bottom shell 110 when the upper die assembly moves vertically relative to the motor 100.
[0009] The transverse riveting device for a motor as described above is characterized in that the positioning column 101 is provided with a positioning hole 1011 for the output shaft 130 of the power supply motor 100 to penetrate and position when the upper mold assembly moves vertically relative to the motor 100.
[0010] The horizontal riveting device for a motor as described above is characterized in that the positioning column 101 is slidably connected to the middle die table 2, and a positioning column spring 1012 is provided between the positioning column 101 and the upper die table 1 to prevent the positioning column 101 from moving when the positioning column 101 extends into the mouth of the bottom shell 110.
[0011] As described above, a transverse riveting device for a motor is characterized in that a screw rod 11 is provided between the upper die table 1 and the middle die table 2, the lower end of the screw rod 11 is threadedly connected to the middle die table 2, the upper part of the screw rod 11 passes through the upper die table 1 so that the upper die table 1 can be slidably connected along the screw rod 11, an elastic member 12 is sleeved on the screw 11, the upper end of the elastic member 12 is connected to the upper die table 1, and the lower end of the elastic member 12 is connected to the middle die table 2.
[0012] The horizontal riveting device for a motor as described above is characterized in that the middle die table 2 is provided with a push rod 27 which can press 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 abuts against the inner wall of the bottom shell 110, thereby fixing the middle die table 2 relative to the lower die table 1.
[0013] A transverse riveting device for a motor as described above is characterized in that the punching mechanism 20 includes 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, the cutter 23 is provided with a cutting edge 231 that can contact with the preset position 111 of the bottom shell 110, the cutting edge 231 is inclined, and the positioning column 101 is provided with an avoidance groove 1013 aligned with the cutter 23; a vertical sliding hole 24 communicating with the radial sliding hole 21 is provided on the middle die table 2, a driving block 25 is slidably connected in the vertical sliding hole 24, the driving block 25 is relatively fixedly connected to the upper die table 1 at one end away from the sliding block 22 and moves therewith, and a driving structure 26 is provided between the driving block 25 and the sliding block 22, which can drive 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.
[0014] The transverse riveting device of a motor as described above is characterized in that the driving structure 26 includes a driving guide inclined surface 261 arranged on the end of the driving block 25 close to the sliding block 22, and the sliding block 22 is provided with a sliding guide inclined surface 262 on the end close to the driving block 25, which can cooperate with the driving guide inclined surface 261 and enable the sliding block 22 to move radially relative to the middle mold table 2.
[0015] As described above, a transverse riveting device for a motor is characterized in that a sliding block reset spring 221 is provided between the sliding block 22 and the intermediate die table 2, which can reset the sliding block 22 relative to the intermediate die table 2 when the cutter 23 causes the punched portion of the bottom shell 110 to bend toward the inside of the bottom shell 110 and buckle onto the end cover 120 of the motor 100.
[0016] The transverse riveting device for a motor as described above is characterized in that the punching mechanism 20 has at least two groups, and the two groups of the punching mechanism 20 are arranged outside the positioning column 101 along the circumferential direction of the positioning column 101.
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] 1. The present invention includes a clamping fixture for clamping the motor and a positioning mechanism that can move vertically relative to the motor to extend into the opening of the motor bottom shell and abut against the inner wall of the bottom shell. The transverse riveting device also includes a punching mechanism that can move radially relative to the motor to punch a preset position of the bottom shell after the positioning mechanism positions the motor bottom shell, and makes the punched position on the bottom shell bend toward the inside of the bottom shell and buckle to the motor end cover. When the present invention is working, the positioning mechanism is driven to move vertically relative to the motor to extend into the opening of the motor bottom shell and abut against the inner wall of the bottom shell, and then the punching mechanism is driven to move radially relative to the motor to punch a preset position of the bottom shell, and makes the punched position on the bottom shell bend toward the inside of the bottom shell and buckle to the motor end cover, thereby ensuring that the bottom shell and the end cover will not be deformed during the riveting work, preventing the internal components of the motor from being damaged. At the same time, it also has the characteristics of reasonable design, high working efficiency and high yield.
[0019] 2. In order to enable the punching mechanism to punch the preset position of the bottom shell more accurately and stably, improve the stability of the present invention, and prevent the internal components of the motor from shaking during the punching operation, the positioning column is provided with a positioning hole for the output shaft of the power motor to penetrate and position when the upper mold assembly moves vertically relative to the motor.
[0020] 3. During the riveting work, in order to prevent the positioning column from moving and ensure that the outer wall of the positioning column and the inner wall of the bottom shell are stably abutted, the positioning column is slidably connected to the middle die table, and a positioning column spring is provided between the positioning column and the upper die table to prevent the positioning column from moving when the positioning column extends into the bottom shell opening.
[0021] 4. In order to reduce the production cost of the transverse riveting device, the middle die table is provided with a push rod which can push against the lower die table when the positioning column extends into the opening of the motor bottom shell and abuts against the inner wall of the bottom shell, thereby fixing the middle die table relative to the lower die table.
[0022] 5. A sliding block reset spring is provided between the sliding block and the middle die table, which can reset the sliding block relative to the middle die table when the cutting knife causes the punched portion of the bottom shell to bend toward the inside of the bottom shell and buckle onto the motor end cover; when the punching mechanism finishes working, the sliding block reset spring can reset the sliding block relative to the middle die table, which has the characteristics of reasonable design and high working efficiency.
[0023] 6. There are at least two groups of the punching mechanism, and the two groups of the punching mechanism are arranged outside the positioning column along the circumferential direction of the positioning column; when performing the punching work, it can ensure that the bottom shell is subjected to uniform force, prevent the bottom shell from deformation, and improve the efficiency and automation of the punching work.
Brief Description of the Drawings
[0024] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:
[0025] Figure 1It is a stereogram of the present invention.
[0026] Figure 2 It is a bottom view of the upper mold assembly of the present invention.
[0027] Figure 3 for Figure 2 Sectional view of AA.
[0028] Figure 4 for Figure 3 A magnified schematic diagram of B.
[0029] Figure 5 It is one of the exploded views of the present invention.
[0030] Figure 6 This is the second explosion diagram of the present invention.
[0031] Figure 7 It is a schematic diagram of the intermediate mold platform of the present invention.
[0032] Figure 8 It is a structural schematic diagram of the punching mechanism of the present invention.
[0033] Fig. 9 It is a schematic diagram of the positional relationship between the punching mechanism and the motor bottom shell of the present invention.
[0034] Fig.10 It is a schematic diagram of the lower die table of the present invention.
[0035] Fig.11 It is a schematic diagram of the initial state between the upper die table, the middle die table and the lower die table of the present invention.
[0036] Fig.12 It is a schematic diagram of the use state when the positioning mechanism of the present invention extends into the opening of the motor bottom shell and can abut against the inner wall of the bottom shell.
[0037] Fig.13 It is a schematic diagram of the use state in which the punching mechanism of the present invention punches a preset position of the bottom shell and makes the punched position on the bottom shell bend toward the inside of the bottom shell and buckle onto the motor end cover.
[0038] Fig.14 Schematic diagram of the motor of the present invention. [Specific implementation method]
[0039] The following is combined with Figure 1-14 Embodiments of the present invention are described in detail.
[0040] like Figure 1-14As shown, the present invention provides a transverse riveting device for a motor, comprising a clamping fixture 31 for clamping the motor 100 and a positioning mechanism 10 that can move vertically relative to the motor 100 to extend into the opening of the bottom shell 110 of the motor 100 and can abut against the inner wall of the bottom shell 110. The transverse riveting device also includes a punching mechanism 20 that can move radially relative to the motor 100 to punch a preset position 111 of the bottom shell 110 after the positioning mechanism 10 positions the bottom shell 110 of the motor 100, and makes the punched position on the bottom shell 110 bend toward the inside of the bottom shell 110 and be buckled onto the end cover 120 of the motor 100. The present invention is driven to work by an external driving device. When the present invention is working, the external driving device drives the positioning mechanism 10 to move vertically relative to the motor 100 to extend into the mouth of the bottom shell 110 of the motor 100 and abut against the inner wall of the bottom shell 110, and then drives the punching mechanism 20 to move radially relative to the motor 100 to punch the preset position 111 of the bottom shell 110 and make the punched position on the bottom shell 110 bend toward the inside of the bottom shell 110 and buckle onto the end cover 120 of the motor 100, thereby ensuring that the bottom shell 110 and the end cover 120 will not be deformed during the riveting work, preventing the internal components of the motor 100 from being damaged. At the same time, it also has the characteristics of reasonable design, high working efficiency and high yield rate.
[0041] It also includes a lower die table 3, and the clamping fixture 31 is arranged on the lower die table 3; the positioning mechanism 10 includes an upper die assembly, and the upper die assembly includes an intermediate die table 2 that can move up and down relative to the lower die table 3, and the upper die table 1 is connected to the upper part of the intermediate die table 2, which can move up and down relative to the lower die table 3 together with the intermediate die table 2 and can move up and down relative to the intermediate die table 2 alone; the punching mechanism 20 is connected to the upper die table 1, and when the upper die table 1 moves relative to the intermediate die table 2, the punching mechanism 20 can move radially relative to the motor 100 and punch the preset position 111 of the bottom shell 110; the positioning mechanism 10 also includes a positioning column 101 that is arranged between the upper die table 1 and the intermediate die table 2 and extends into the mouth of the bottom shell 110 of the motor 100 and can abut against the inner wall of the bottom shell 110 when the upper die assembly moves vertically relative to the motor 100. During operation, the external driving device drives the upper mold assembly to move vertically relative to the lower mold platform, that is, the upper mold assembly moves toward the side of the motor on the clamping fixture, and then the middle mold platform 2 abuts against the lower mold platform 3 to fix the middle mold platform 2 relative to the lower mold platform 3, and at the same time, the positioning column 101 extends into the mouth of the bottom shell 110 of the motor 100 and the outer wall of the positioning column 101 abuts against the inner wall of the bottom shell 110, and then the driving device continues to drive the upper mold assembly to move toward the side of the lower mold platform 3, that is, the upper mold platform 1 moves relative to the middle mold platform 2, and at the same time, the upper mold platform 1 drives the punching mechanism 20 to move radially relative to the motor 100 to punch the preset position 111 of the bottom shell 110 and make the punched portion of the bottom shell 110 bend toward the inside of the bottom shell 110 and buckle onto the end cover 120 of the motor 100.
[0042] In order to enable the punching mechanism to punch the preset position of the bottom shell more accurately and stably, and prevent the internal components of the motor from shaking during the punching operation, the positioning column 101 is provided with a positioning hole 1011 for the output shaft 130 of the power supply motor 100 to penetrate and position when the upper mold assembly moves vertically relative to the motor 100.
[0043] During the riveting operation, in order to prevent the positioning column from moving and ensure that the outer wall of the positioning column and the inner wall of the bottom shell are stably abutted, the positioning column 101 is slidably connected to the middle mold platform 2, and a positioning column spring 1012 is provided between the positioning column 101 and the upper mold platform 1 to prevent the positioning column 101 from moving when the positioning column 101 extends into the mouth of the bottom shell 110.
[0044] According to design requirements, a screw rod 11 is provided between the upper mold platform 1 and the middle mold platform 2, and the lower end of the screw rod 11 is threadedly connected to the middle mold platform 2. The upper part of the screw rod 11 passes through the upper mold platform 1 so that the upper mold platform 1 can be slidably connected along the screw rod 11. An elastic member 12 is sleeved on the screw 11, and the upper end of the elastic member 12 is connected to the upper mold platform 1, and the lower end of the elastic member 12 is connected to the middle mold platform 2.
[0045] In order to reduce the production cost of the transverse riveting device, the middle die table 2 is provided with a push rod 27 which can push 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 abuts against the inner wall of the bottom shell 110 to fix the middle die table 2 relative to the lower die table 1.
[0046] The punching mechanism 20 includes 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, and a cutting edge 231 is provided on the cutter 23 which can abut against the preset position 111 of the bottom shell 110, and the cutting edge 231 is inclined, and an avoidance groove 1013 aligned with the cutter 23 is provided on the positioning column 101; a vertical sliding hole 24 communicating with the radial sliding hole 21 is provided on the middle die table 2, a driving block 25 is slidably connected in the vertical sliding hole 24, and the driving block 25 is relatively fixedly connected to the upper die table 1 at one end away from the sliding block 22 and moves therewith, and a driving structure 26 is provided between the driving block 25 and the sliding block 22, which can drive 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. During operation, the external driving device drives the upper mold assembly to move vertically relative to the lower mold table, that is, the upper mold assembly moves toward the motor side of the clamping fixture, and 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. At the same time, the positioning column 101 extends into the mouth of the bottom shell 110 of the motor 100 and the outer wall of the positioning column 101 abuts against the inner wall of the bottom shell 110, and the cutting edge 231 of the cutter 23 abuts against or radially aligns with the preset position 111 of the bottom shell 110, and then the driving device Continue to drive the upper mold assembly to move toward the side of the lower mold platform 3, that is, the upper mold platform 1 moves relative to the middle mold platform 2, and at the same time, the upper mold platform 1 drives the driving block 25 to move downward relative to the middle mold platform 3, thereby driving the sliding block 22 to move radially relative to the middle mold platform 3, that is, the cutting edge 231 of the cutter 23 moves radially toward the side of the motor 100 to hit the preset position 111 of the bottom shell 110, and the preset position 111 is bent toward the inner side of the bottom shell 110 into the avoidance groove 1013 until it is buckled onto the end cover 120 of the motor 100.
[0047] According to design requirements and in order to make the punch mechanism work more stably, the driving structure 26 includes a driving guide bevel 261 arranged on the end of the driving block 25 close to the sliding block 22, and the sliding block 22 is provided with a sliding guide bevel 262 on the end close to the driving block 25, which can cooperate with the driving guide bevel 261 and enable the sliding block 22 to move radially relative to the middle mold table 2.
[0048] A sliding block return spring 221 is provided between the sliding block 22 and the middle die table 2. When the cutter 23 causes the punched portion of the bottom shell 110 to bend toward the inside of the bottom shell 110 and buckle onto the end cover 120 of the motor 100, the sliding block 22 can be returned relative to the middle die table 2. When the punching mechanism is finished working, the sliding block return spring can return the sliding block relative to the middle die table, which has the characteristics of reasonable design and high working efficiency.
[0049] There are at least two groups of the punching mechanism 20, and the two groups of the punching mechanism 20 are arranged outside the positioning column 101 along the circumferential direction of the positioning column 101. When performing the punching work, it can ensure that the bottom shell is evenly stressed, prevent the bottom shell from deformation, and improve the punching work efficiency and automation.
[0050] Working principle:
[0051] During operation, the external driving device drives the upper mold assembly to move vertically relative to the lower mold table, that is, the upper mold assembly moves toward the motor side of the clamping fixture, and 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, and at the same time, the positioning column 101 extends into the mouth of the bottom shell 110 of the motor 100 and the outer wall of the positioning column 101 abuts against the inner wall of the bottom shell 110, and the cutting edge 231 of the cutting knife 23 abuts against or radially aligns with the preset position 111 of the bottom shell 110, and then the driving device continues to drive the upper mold assembly to move toward the side of the lower mold table, that is, the upper mold table 1 moves relative to the middle mold table 2, and at the same time, the upper mold table 1 drives the driving block 25 to move downward relative to the middle mold table 3, thereby driving the guide ramp 261 cooperates with the sliding guide inclined surface 262 to drive the sliding block 22 to move radially relative to the middle die table 3, that is, the cutting edge 231 of the cutter 23 moves radially toward one side of the motor to punch the preset position 111 of the bottom shell 110, and the preset position 111 is bent toward the inner side of the bottom shell 110 into the avoidance groove 1013 until it is buckled onto the end cover 120 of the motor 100. Therefore, when the present invention is punching, the outer wall of the positioning column 101 abuts against the inner wall of the bottom shell 110, so that the cutting edge 230 of the cutter 23 punches the preset position 111 of the bottom shell 110, which can ensure that the bottom shell 110 will not be deformed when being punched by the cutter 23, and has the characteristics of reasonable design, high working efficiency and high yield.
Claims
1. A horizontal riveting device for a motor, characterized in that The invention comprises a clamping fixture (31) for clamping a motor (100) and a positioning mechanism (10) capable of vertically moving relative to the motor (100) to extend into the opening of a bottom shell (110) of the motor (100) and to abut against the inner wall of the bottom shell (110); the transverse riveting device further comprises a punching mechanism (20) capable of radially moving relative to the motor (100) to punch a preset portion (111) of the bottom shell (110) after the positioning mechanism (10) has positioned the bottom shell (110) of the motor (100) and causing the punched portion of the bottom shell (110) to bend toward the inside of the bottom shell (110) and be buckled onto an end cover (120) of the motor (100); It also includes a lower die table (3), the clamping fixture (31) is arranged on the lower die table (3); the positioning mechanism (10) includes an upper die assembly, the upper die assembly includes an intermediate die table (2) that can move up and down relative to the lower die table (3), the upper die table (1) is connected to the upper die table (2) and can move up and down relative to the lower die table (3) together with the intermediate die table (2) and can move up and down relative to the intermediate die table (2) alone, the punching mechanism (20) is connected to the upper die table (1), and when the upper die table (1) moves relative to the intermediate die table (2), the punching mechanism (20) can move radially relative to the motor (100) to punch a preset position (111) of the bottom shell (110); A screw rod (11) is provided between the upper die platform (1) and the middle die platform (2), the lower end of the screw rod (11) is threadedly connected to the middle die platform (2), the upper part of the screw rod (11) passes through the upper die platform (1) so that the upper die platform (1) can be slidably connected along the screw rod (11), an elastic member (12) is sleeved on the screw rod (11), the upper end of the elastic member (12) is connected to the upper die platform (1), and the lower end of the elastic member (12) is connected to the middle die platform (2); During operation, the positioning mechanism is driven to move vertically relative to the motor to extend into the opening of the motor bottom shell and abut against the inner wall of the bottom shell, and then the punching mechanism is driven to move radially relative to the motor to punch a preset position of the bottom shell and make the punched position on the bottom shell bend toward the inside of the bottom shell and buckle onto the motor end cover.
2. A horizontal riveting device for a motor according to claim 1, characterized in that 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 which extends into the opening of the bottom shell (110) of the motor (100) and can abut against the inner wall of the bottom shell (110) when the upper die assembly moves vertically relative to the motor (100).
3. A horizontal riveting device for a motor according to claim 2, characterized in that The positioning column (101) is provided with a positioning hole (1011) into which the output shaft (130) of the power supply machine (100) penetrates and is positioned when the upper mold assembly moves vertically relative to the motor (100).
4. A transverse riveting device for a motor according to claim 2, characterized in that The positioning column (101) is slidably connected to the middle die platform (2), and a positioning column spring (1012) is provided between the positioning column (101) and the upper die platform (1) to prevent the positioning column (101) from moving when the positioning column (101) extends into the opening of the bottom shell (110).
5. A transverse riveting device for a motor according to claim 2, characterized in that The middle die table (2) is provided with a push rod (27) which can abut 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 abuts against the inner wall of the bottom shell (110), thereby fixing the middle die table (2) relative to the lower die table (1).
6. A transverse riveting device for a motor according to any one of claims 1 to 5, characterized in that The punching mechanism (20) comprises a radial sliding hole (21) provided on the middle die table (2), a sliding block (22) being slidably connected in the radial sliding hole (21), a cutter (23) being fixedly connected to the outer end of the sliding block (22), a cutting edge (231) being provided on the cutter (23) capable of contacting with a preset position (111) of the bottom shell (110), the cutting edge (231) being arranged in an inclined manner, and an avoidance groove (1013) being aligned with the cutter (23) being provided on the positioning column (101); The intermediate die table (2) is provided with a vertical sliding hole (24) which is in communication with the radial sliding hole (21); a driving block (25) is slidably connected in the vertical sliding hole (24); an end of the driving block (25) which is away from the sliding block (22) is relatively fixedly connected to the upper die table (1) and moves with the upper die table (1); a driving structure (26) is provided between the driving block (25) and the sliding block (22) which can drive the sliding block (22) to move radially relative to the intermediate die table (2) when the driving block (25) moves vertically relative to the intermediate die table (2).
7. A transverse riveting device for a motor according to claim 6, characterized in that The driving structure (26) comprises a driving guide inclined surface (261) provided on one end of the driving block (25) close to the sliding block (22); and the sliding block (22) is provided on one end close to the driving block (25) with a sliding guide inclined surface (262) which can cooperate with the driving guide inclined surface (261) and enable the sliding block (22) to move radially relative to the middle mold platform (2).
8. A transverse riveting device for a motor according to claim 6, characterized in that A sliding block return spring (221) is provided between the sliding block (22) and the middle die table (2), which can return the sliding block (22) relative to the middle die table (2) when the cutter (23) causes the punched portion of the bottom shell (110) to bend toward the inside of the bottom shell (110) and buckle onto the end cover (120) of the motor (100).
9. A horizontal riveting device for a motor according to claim 6, characterized in that There are at least two groups of the punching mechanisms (20), and the two groups of the punching mechanisms (20) are arranged outside the positioning column (101) along the circumferential direction of the positioning column (101).