Motor stator lower tooling device and stator press machine

Abstract

The present application discloses a motor stator lower fixture device, which belongs to the technical field of motor stator and rotor assembly. The motor stator lower fixture device includes: a first mounting base, the first mounting base is provided with a first through hole; a first driving mechanism, the first driving mechanism is connected to the first mounting base; an inner support mechanism, the inner support mechanism includes an inner support rod and a plurality of inner support blocks, the inner support rod is connected to the first driving mechanism, and the inner support rod is passed through the first through hole, the plurality of inner support blocks are connected to the inner support rod, and the plurality of inner support blocks are evenly distributed on the circumference of the inner support rod; when the first driving mechanism drives the inner support rod to move along the axial direction of the inner support rod, the inner support block can move along the radial direction of the inner support rod to fix the stator inner core. The above scheme can solve the problem of poor quality of the stator core pressed out by the stator press.

Description

Technical Field

[0001] The present application belongs to the technical field of motor stator and rotor assembly, and specifically relates to a motor stator lower tooling device and a stator press-fitting machine. Background Art

[0002] With the increasing number of automated equipment, the demand for servo motors is also increasing, which requires manufacturing companies to improve production efficiency and realize mechanization and automation of production.

[0003] The stator and rotor are key components of a servo motor. A gap exists between the inner wall of the stator and the outer wall of the rotor, allowing the rotor to rotate. The stator consists of a stator core and stator coils, which are wound around the stator core. The stator core consists of an inner core and an outer core. During assembly, the inner core is placed on the lower assembly platform, the outer core is placed on the upper assembly platform, and then the outer core is press-fitted onto the inner core, forming the stator core.

[0004] When the lower assembly platform fixes the inner core, the axis of the inner core is likely to deviate from the axis of the outer core mounted on the upper assembly platform, resulting in poor quality of the press-assembled stator core. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a motor stator lower tooling device and a stator press machine, which can solve the problem of poor quality of the stator core pressed by the stator press machine.

[0006] In order to solve the above technical problems, this application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides a motor stator lower fixture device, the motor stator lower fixture device comprising:

[0008] a first mounting base, wherein the first mounting base is provided with a first through hole;

[0009] a first driving mechanism connected to the first mounting base;

[0010] An internal support mechanism, the internal support mechanism comprising an internal support rod and a plurality of internal support blocks, the internal support rod being connected to the first driving mechanism and passing through the first through hole, the plurality of internal support blocks being connected to the internal support rod and being evenly distributed on the circumference of the internal support rod;

[0011] When the first driving mechanism drives the inner support rod to move in the axial direction of the inner support rod, the inner support block can move in the radial direction of the inner support rod to fix the stator inner core.

[0012] In a second aspect, an embodiment of the present application provides a stator press, which includes an upper motor stator lower tooling device and a fourth drive mechanism, wherein the fourth drive mechanism is connected to the motor stator lower tooling device, and the fourth drive mechanism can drive the motor stator lower tooling device to rotate.

[0013] In an embodiment of the present application, when the stator core needs to be fixed, the stator core is first sleeved onto the multiple inner support blocks. Then, the first drive mechanism drives the inner support rod to move along its axial direction. During this movement, the inner support rod drives the inner support blocks to move radially along the inner support rod, thereby supporting the stator core and fixing the stator core. Because the multiple inner support blocks are evenly distributed around the circumference of the inner support rod, the multiple inner support blocks can keep the axis of the stator core collinear with the axis of the outer core of the upper assembly platform during movement, thereby ensuring the quality of the stator core during the press-fitting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figures 1 to 3 This is a schematic structural diagram of the motor stator lower tooling device disclosed in an embodiment of the present application;

[0015] Figure 4 for Figure 3 sectional view of

[0016] Figure 5 This is a partial structural diagram of the motor stator lower tooling device disclosed in an embodiment of the present application;

[0017] Figure 6 for Figure 5 Exploded diagram;

[0018] Figure 7 A schematic diagram of a portion of the structure of the motor stator lower tooling device disclosed in an embodiment of the present application;

[0019] Figure 8 for Figure 7 sectional view of

[0020] Figure 9 A schematic structural diagram of the first drive mechanism and the third drive mechanism disclosed in the embodiment of the present application;

[0021] Figure 10 This is a schematic structural diagram of the second driving mechanism disclosed in an embodiment of the present application;

[0022] Figure 11 This is a structural diagram of the first mounting base disclosed in an embodiment of the present application;

[0023] Figure 12 A schematic diagram of a portion of the structure of the internal support mechanism disclosed in an embodiment of the present application;

[0024] Figure 13This is a schematic structural diagram of the third mounting base disclosed in the embodiment of this application;

[0025] Figure 14 A schematic structural diagram of a contact member disclosed in an embodiment of the present application;

[0026] Figure 15 This is a schematic structural diagram of the support member disclosed in an embodiment of the present application.

[0027] Description of reference numerals:

[0028] 110 - first mounting base, 110a - first through hole, 110b - first strip hole, 111 - first substrate, 112 - connecting shaft, 113 - auxiliary component;

[0029] 120 - first drive mechanism, 121 - first drive source, 122 - transmission shaft, 123 - bushing, 124 - first floating joint;

[0030] 130 - internal support mechanism, 131 - internal support rod, 131a - cone, 132 - internal support block, 133 - first elastic member, 134 - cover, 135 - internal support cover, 136 - third rotating shaft;

[0031] 140 - second mounting base, 140a - second strip-shaped hole, 141 - second substrate, 142 - second cover;

[0032] 150-first connecting member;

[0033] 160 - coil pressing plate, 161 - first groove, 162 - fourth strip hole, 163 - fifth strip hole;

[0034] 170 - second driving mechanism, 171 - second driving source, 172 - second connecting member, 172a - protrusion, 173 - second fixing plate, 174 - second mounting seat, 175 - fourth connecting member, 176 - second floating joint, 177 - second linear bearing;

[0035] 180 - third driving mechanism, 181 - third driving source, 182 - connecting plate, 183 - connecting rod, 184 - push ring, 185 - third floating joint, 186 - first mounting plate, 187 - third fixing plate, 188 - third linear bearing;

[0036] 190 - transmission mechanism, 191 - contact member, 191a - contact portion, 191b - mounting portion, 192 - third connecting member, 193 - second elastic member;

[0037] 200 - third mounting base, 200a - third strip-shaped hole, 201 - third substrate, 201a - third groove, 202 - third cover plate;

[0038] 210-first rotating shaft;

[0039] 220-second rotating shaft;

[0040] 230-support member;

[0041] 240- auxiliary ring;

[0042] 250-positioning axis;

[0043] 300- stator core. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0045] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0046] The motor stator lower tooling device provided in the embodiment of the present application is described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0047] like Figures 1 to 15 As shown, an embodiment of the present application provides a motor stator lower fixture device, which includes a first mounting base 110 , a first driving mechanism 120 and an inner supporting mechanism 130 .

[0048] The first mounting base 110 is provided with a first through-hole 110a. The first mounting base 110 may include a first base plate 111, a connecting shaft 112, and an auxiliary component 113. The first base plate 111 is connected to the auxiliary component 113 via the connecting shaft 112. Both the first base plate 111 and the auxiliary component 113 are sleeved onto the connecting shaft 112, which is provided with the first through-hole 110a. To ensure the quality of the press-fit stator, the first mounting base 110 may be an annular structure. The surface finish of the first mounting base 110 may be 3.2, the perpendicularity may be 0.025, and the parallelism of the two opposing circumferential surfaces may be 0.01.

[0049] The first drive mechanism 120 is connected to the first mounting base 110. The first drive mechanism 120 may include a first drive source 121, a transmission shaft 122, and a sleeve 123. The first drive source 121 is connected to the transmission shaft 122, and the sleeve 123 is sleeved on the transmission shaft 122. The sleeve 123 can provide a guide for the transmission shaft 122. To effectively protect the first drive source 121, the first drive mechanism 120 may further include a first floating joint 124. The first drive source 121 is connected to the transmission shaft 122 via the first floating joint 124. This ensures that the first drive source 121 is evenly stressed during operation, thereby extending its service life. The first drive source 121 may be a cylinder.

[0050] The internal support mechanism 130 may include an internal support rod 131 and a plurality of internal support blocks 132. The internal support rod 131 is connected to the first drive mechanism 120. Optionally, the internal support rod 131 is connected to the first drive source 121 via a transmission shaft 122, and the internal support rod 131 is passed through the first through hole 110a. The plurality of internal support blocks 132 are connected to the internal support rod 131, and the plurality of internal support blocks 132 are evenly distributed around the circumference of the internal support rod 131. In order to ensure the roundness of the internal support blocks 132, the motor stator lower tooling device may also include a support member 230, which is sleeved on the internal support blocks 132 to prevent the internal support blocks 132 from falling off.

[0051] When the first driving mechanism 120 drives the inner support rod 131 to move along the axial direction of the inner support rod 131 , the inner support block 132 may move along the radial direction of the inner support rod 131 to fix the stator inner core 300 .

[0052] In the embodiment of the present application, when the stator inner core 300 needs to be fixed, the stator inner core 300 is first sleeved on the multiple inner support blocks 132. Then, the first drive mechanism 120 drives the inner support rod 131 to move along its axial direction. During the movement, the inner support rod 131 drives the inner support blocks 132 to move along the radial direction of the inner support rod 131, thereby supporting the stator inner core 300 and fixing the stator inner core 300. Because the multiple inner support blocks 132 are evenly distributed on the circumference of the inner support rod 131, the multiple inner support blocks 132 can keep the axis of the stator inner core 300 collinear with the axis of the outer core of the upper assembly platform during the movement, thereby ensuring the quality of the stator core during the press-fitting process.

[0053] In one embodiment, the outer circumference of the inner support rod 131 is provided with a cone 131a, and the inner support block 132 has a tapered surface with which the cone 131a can contact. When the first drive mechanism 120 drives the inner support rod 131 to move axially, the cone 131a contacts the tapered surface, driving the inner support block 132 to move radially along the inner support rod 131. This embodiment has a simple structure and improved reliability.

[0054] In an optional embodiment, the internal support mechanism 130 may further include a first elastic member 133, one end of the first elastic member 133 being connected to the first mounting base 110, and the other end being connected to the internal support rod 131. When the first driving mechanism 120 drives the internal support rod 131 to move in a direction away from the stator inner core 300, the first elastic member 133 undergoes elastic deformation. When the first driving mechanism 120 drives the internal support rod 131 to move along the axial direction of the internal support rod 131, the first elastic member 133 undergoes elastic deformation, thereby accumulating elastic potential energy. When the pressed-fit stator needs to be removed, the first elastic member 133 restores its elastic deformation, thereby releasing the elastic potential energy to drive the internal support rod 131 to move in a direction close to the stator inner core 300. At this time, the force exerted by the internal support block 132 on the stator inner core 300 is reduced, which is conducive to removing the pressed-fit stator. The internal support mechanism 130 may further include a housing 134, an internal support cover 135, and a third rotating shaft 136. The housing 134 may be mounted on the first elastic member 133, and the first elastic member 133 is connected to the first mounting base 110 via the housing 134. The first end of the internal support block 132 is located within the internal support cover 135 and is slidably connected to the internal support cover 135 via the third rotating shaft 136. The end of the connecting shaft 112 facing the stator inner core 300 is provided with a second protrusion, and the second end of the internal support block 132 is provided with a fourth groove that is capable of engaging with the second protrusion. Both the fourth groove and the second protrusion extend radially along the inner support rod 131. Furthermore, the second end engages with the connecting shaft 112 via a pin, the axis of the pin being parallel to the axis of the connecting shaft 112. The internal support mechanism 130 may further include a third elastic member, which is mounted on the plurality of internal support blocks 132. When the first elastic member 133 drives the inner support rod 131 to move toward the stator inner core 300, the third elastic member releases elastic potential energy and recovers elastic deformation, thereby driving the plurality of inner support blocks to move radially along the inner support rod 131. Both the first elastic member 133 and the third elastic member can be springs.

[0055] In an optional embodiment, the motor stator lower fixture device may further include a second mounting base 140, a first connector 150, and a plurality of coil pressing plates 160. The second mounting base 140 is connected to the first mounting base 110 via the first connector 150, and the plurality of coil pressing plates 160 are disposed on the first mounting base 110 and the second mounting base 140. The motor stator lower fixture device may further include a second drive mechanism 170, which is connected to the first mounting base 110 and can be connected to the coil pressing plates 160. When the second drive mechanism 170 is connected to the coil pressing plates 160, the second drive mechanism 170 can drive the coil pressing plates 160 to move away from the stator inner core 300 to place the stator coils. The second drive mechanism 170 can also drive the coil pressing plates 160 to move toward the stator inner core 300 to pre-compress the stator coils. When the second driving mechanism 170 drives the coil pressing plate 160 to move in a direction away from the stator inner core 300, the stator coil can be easily installed on the stator inner core 300; when the second driving mechanism 170 drives the coil pressing plate 160 to move in a direction close to the stator inner core 300, the coil pressing plate 160 can pre-press the stator coil to prevent the stator coil from falling, and then perform stator press-fitting.

[0056] In one embodiment, the second drive mechanism 170 may include a second drive source 171 and a second connector 172. The second drive source 171 may be connected to the coil pressing plate 160 via the second connector 172. The second connector 172 may have a protrusion 172a, and the coil pressing plate 160 may have a first groove 161. When the second connector 172 is connected to the coil pressing plate 160, the protrusion 172a may engage with the first groove 161. The engagement of the protrusion 172a with the first groove 161 allows the second connector 172 to be quickly connected to the coil pressing plate 160. The second drive source 171 may be a cylinder.

[0057] The second drive mechanism 170 may further include a second fixed plate 173, a second mounting seat 174, a fourth connecting member 175, a second floating joint 176, and a second linear bearing 177. The second drive source 171 may be connected to other structures of the stator press via the second fixed plate 173 to secure the second drive source 171. The second mounting seat 174 may be sleeved onto the second connecting member 172. The second fixed plate 173 may be connected to the second mounting seat 174 via the fourth connecting member 175. The second drive source 171 may be connected to the second connecting member 172 via a second floating joint 176. The second floating joint 176 and the second connecting member 172 have a clearance fit, which effectively prevents uneven force on the second drive source 171 during operation, thereby shortening the life of the second drive source 171. Furthermore, the above-described connection method is compact and space-saving. The second connecting member 172 can be slidably connected to the second mounting seat 174 via the second linear bearing 177 , thereby achieving low-friction, high-precision linear motion, thereby ensuring accurate matching between the protrusion 172 a and the first groove 161 .

[0058] In an optional embodiment, the motor stator lower fixture may further include a third drive mechanism 180 and a transmission mechanism 190. The third drive mechanism 180 is connected to the first mounting base 110, and the third drive mechanism 180 can drive the coil pressing plate 160 to move radially along the inner support rod 131 through the transmission mechanism 190. After the stator coil is installed, the third drive mechanism 180 drives the coil pressing plate 160 to move radially along the inner support rod 131, thereby pre-pressing the stator coil to facilitate subsequent press-fitting.

[0059] In one embodiment, the motor stator lower tooling device may further include a third mounting base 200, which is sleeved on the first mounting base 110 and located on the side of the first mounting base 110 facing away from the second mounting base 140. The first mounting base 110 is provided with a first strip hole 110b, the second mounting base 140 is provided with a second strip hole 140a, and the third mounting base 200 is provided with a third strip hole 200a. The coil pressing plate 160 is embedded in the first strip hole 110b, the second strip hole 140a, and the third strip hole 200a. The third driving mechanism 180 can drive the third mounting base 200 to move via the transmission mechanism 190, so that the third mounting base 200 drives the coil pressing plate 160 to move radially along the inner support rod 131. The first strip-shaped hole 110 b , the second strip-shaped hole 140 a and the third strip-shaped hole 200 a can limit the coil pressing plate 160 to facilitate accurate movement of the coil pressing plate 160 .

[0060] The motor stator lower fixture may further include an auxiliary ring 240 and a positioning shaft 250. The auxiliary ring 240 is connected to the third mounting base 200 via the positioning shaft 250. The auxiliary ring 240 is provided with a groove corresponding to the coil pressing plate 160. The auxiliary ring 240 is sleeved on the coil pressing plate 160 to ensure the coaxiality between the coil pressing plate 160 and the stator coil.

[0061] In an optional embodiment, the coil pressing plate 160 is provided with a fourth strip hole 162 and a fifth strip hole 163, and the fourth strip hole 162 and the fifth strip hole 163 both extend in the axial direction of the inner support rod 131. The fourth strip hole 162 may include a first section, a second section, and a third section connected in sequence, wherein the extension directions of the first section and the third section are parallel to the extension direction of the inner support rod 131, and the extension direction of the second section gradually moves away from the inner support rod 131. The motor stator lower fixture device may further include a first rotating shaft 210 and a second rotating shaft 220, wherein the first rotating shaft 210 is provided through the fourth strip hole 162 and is rotatably connected to the third mounting base 200, and the second rotating shaft 220 is provided through the fifth strip hole 163 and is rotatably connected to the second mounting base 140. During the movement of the coil pressing plate 160, the first rotating shaft 210 and the second rotating shaft 220 can limit the position of the coil pressing plate 160. In addition, the rotation of the first rotating shaft 210 and the second rotating shaft 220 can reduce friction, thereby facilitating the movement of the coil pressing plate 160 and reducing the power consumption of the third driving mechanism 180. The second mounting base 140 can include a stacked second substrate 141 and a second cover plate 142. The second substrate 141 and the second cover plate 142 are each provided with a second strip-shaped hole 140a. The second substrate 141 is provided with a second groove. The first rotating shaft 210 is disposed within the second groove. The second cover plate 142 can limit the first rotating shaft 210 to prevent it from falling off. The third mounting base 200 can include a stacked third substrate 201 and a third cover plate 202. The third substrate 201 and the third cover plate 202 are each provided with a third strip-shaped hole 200a. The third substrate 201 is provided with a third groove 201a. The second rotating shaft 220 is disposed within the third groove 201a. The third cover plate 202 can limit the second rotating shaft 220 to prevent it from falling off.

[0062] In an optional embodiment, the transmission mechanism 190 may include a contact member 191, a third connecting member 192, and a second elastic member 193. The contact member 191 may contact the third driving mechanism 180 and is connected to the third mounting base 200 via the third connecting member 192. The second elastic member 193 is connected to the contact member 191 at one end and to the first mounting base 110 at the other end. When the third driving mechanism 180 drives the third mounting base 200 to move via the third connecting member 192, the second elastic member 193 undergoes elastic deformation. When the third driving mechanism 180 contacts the contact member 191, the contact member 191 can drive the third connecting member 192 to move in a direction approaching the stator inner core 300. The third connecting member 192 can drive the third mounting base 200 to move, and the third mounting base 200 can drive the coil pressure plate 160 to move radially along the inner support rod 131. Simultaneously, the second elastic member 193 undergoes elastic deformation. After the stator is press-fitted, the second elastic member 193 recovers its elastic deformation, releasing its elastic potential energy, thereby driving the third connecting member 192 and the third mounting base 200 to move away from the stator inner core 300, thereby reducing the power consumption of the third driving mechanism 180 and ensuring the reliability of the movement of the transmission mechanism 190. Optionally, the second elastic member 193 is a spring.

[0063] Contact member 191 may include a contact portion 191a and a mounting portion 191b. Mounting portion 191b surrounds contact portion 191a. There are at least two mounting portions 191b, evenly spaced about contact portion 191a, and spaced apart. This structure of contact member 191 fully utilizes the space available under the motor stator fixture, provides uniform force distribution, and enhances reliability.

[0064] The third drive mechanism 180 may include a third drive source 181, a connecting plate 182, a connecting rod 183, a push ring 184, a third floating joint 185, a first mounting plate 186, a third fixed plate 187, and a third linear bearing 188. The third drive source 181 is connected to the connecting rod 183 via the connecting plate 182. The connecting rod 183 contacts the contact member 191 via the push ring 184. Specifically, the push ring 184 may contact the contact portion 191a. The third drive source 181 is connected to the first mounting plate 186 via the third floating joint 185. The first mounting plate 186 has a U-shaped groove, and the third floating joint 185 is positioned within the U-shaped groove and has a clearance fit therewith. The clearance fit between the third floating joint 185 and the first mounting plate 186 effectively prevents uneven force on the third drive source 181 during operation, which could shorten the life of the third drive source 181. The third drive source 181 may be secured by the third fixed plate 187. Connecting rod 183 passes through third fixing plate 187 and is slidably connected to third fixing plate 187 via third linear bearing 188, effectively reducing friction and ensuring the accuracy of linear motion and structural stability. Third drive source 181 may be a pneumatic cylinder. Push ring 184 may be sleeved on sleeve 123.

[0065] An embodiment of the present application also discloses a stator press, which includes the motor stator lower tooling device and a fourth drive mechanism in any of the above embodiments. The fourth drive mechanism is connected to the motor stator lower tooling device, and the fourth drive mechanism can drive the motor stator lower tooling device to rotate.

[0066] The stator press machine may further include a frame and a second mounting plate, the motor stator lower tooling device is connected to the frame via the second mounting plate, and the third fixing plate 187 may be connected to the second mounting plate.

[0067] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A motor stator lower tooling device, characterized in that: include: A first mounting base (110), the first mounting base (110) being provided with a first through hole (110a); a first driving mechanism (120), the first driving mechanism (120) being connected to the first mounting base (110); An internal support mechanism (130), the internal support mechanism (130) comprising an internal support rod (131) and a plurality of internal support blocks (132), the internal support rod (131) being connected to the first driving mechanism (120), and the internal support rod (131) being passed through the first through hole (110a), the plurality of internal support blocks (132) being connected to the internal support rod (131), and the plurality of internal support blocks (132) being uniformly distributed in a circumferential direction of the internal support rod (131); When the first driving mechanism (120) drives the inner support rod (131) to move along the axial direction of the inner support rod (131), the inner support block (132) can move along the radial direction of the inner support rod (131) to fix the stator inner core (300); The motor stator lower tooling device further comprises a second mounting base (140), a first connecting member (150) and a plurality of coil pressing plates (160), wherein the second mounting base (140) is connected to the first mounting base (110) via the first connecting member (150), and the plurality of coil pressing plates (160) are arranged on the first mounting base (110) and the second mounting base (140); The motor stator lower fixture further comprises a second drive mechanism (170), the second drive mechanism (170) being connected to the first mounting base (110), and the second drive mechanism (170) being connectable to the coil pressing plate (160); When the second driving mechanism (170) is connected to the coil pressing plate (160), the second driving mechanism (170) can drive the coil pressing plate (160) to move in a direction away from the stator inner core (300) to place the stator coil, and the second driving mechanism (170) can drive the coil pressing plate (160) to move in a direction close to the stator inner core (300) to pre-press the stator coil; The second driving mechanism (170) comprises a second driving source (171) and a second connecting member (172), and the second driving source (171) can be connected to the coil pressing plate (160) via the second connecting member (172); The second connecting member (172) is provided with a protrusion (172a), and the coil pressing plate (160) is provided with a first groove (161), and when the second connecting member (172) is connected to the coil pressing plate (160), the protrusion (172a) can cooperate with the first groove (161); The motor stator lower tooling device further comprises a third driving mechanism (180) and a transmission mechanism (190), wherein the third driving mechanism (180) is connected to the first mounting base (110), and the third driving mechanism (180) can drive the coil pressing plate (160) to move radially along the inner support rod (131) through the transmission mechanism (190).

2. The motor stator lower fixture device according to claim 1, characterized in that: The outer peripheral surface of the inner support rod (131) is provided with a cone (131a), the inner support block (132) has a cone surface, and the cone (131a) can contact the cone surface.

3. The motor stator lower fixture device according to claim 1, characterized in that: The inner support mechanism (130) further includes a first elastic member (133), one end of the first elastic member (133) being connected to the first mounting base (110), and the other end being connected to the inner support rod (131); When the first driving mechanism (120) drives the inner support rod (131) to move in a direction away from the stator inner core (300), the first elastic member (133) undergoes elastic deformation.

4. The motor stator lower fixture device according to claim 1, characterized in that: The motor stator lower tooling device further comprises a third mounting base (200), wherein the third mounting base (200) is sleeved on the first mounting base (110), and the third mounting base (200) is located on a side of the first mounting base (110) facing away from the second mounting base (140); The first mounting base (110) is provided with a first strip-shaped hole (110b), the second mounting base (140) is provided with a second strip-shaped hole (140a), the third mounting base (200) is provided with a third strip-shaped hole (200a), and the coil pressing plate (160) is embedded in the first strip-shaped hole (110b), the second strip-shaped hole (140a), and the third strip-shaped hole (200a); The third driving mechanism (180) can drive the third mounting base (200) to move via the transmission mechanism (190), so that the third mounting base (200) drives the coil pressing plate (160) to move radially along the inner support rod (131).

5. The motor stator lower fixture device according to claim 4, characterized in that: The coil pressing plate (160) is provided with a fourth strip hole (162) and a fifth strip hole (163), and the fourth strip hole (162) and the fifth strip hole (163) both extend in the axial direction of the inner support rod (131); The motor stator lower tooling device further includes a first rotating shaft (210) and a second rotating shaft (220), wherein the first rotating shaft (210) is passed through the fourth strip hole (162) and is rotatably connected to the third mounting base (200), and the second rotating shaft (220) is passed through the fifth strip hole (163) and is rotatably connected to the second mounting base (140).

6. The motor stator lower fixture device according to claim 4, characterized in that: The transmission mechanism (190) includes a contact member (191), a third connecting member (192) and a second elastic member (193); the contact member (191) can contact the third driving mechanism (180), and the contact member (191) is connected to the third mounting base (200) via the third connecting member (192); one end of the second elastic member (193) is connected to the contact member (191), and the other end is connected to the first mounting base (110); When the third driving mechanism (180) drives the third mounting base (200) to move via the third connecting member (192), the second elastic member (193) undergoes elastic deformation.

7. A stator press machine, characterized in that: It comprises the motor stator lower fixture device according to any one of claims 1 to 6 and a fourth drive mechanism, wherein the fourth drive mechanism is connected to the motor stator lower fixture device, and the fourth drive mechanism can drive the motor stator lower fixture device to rotate.

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