CN217789531U

CN217789531U - Stator pre-clamping machine

Info

Publication number: CN217789531U
Application number: CN202220775120.9U
Authority: CN
Inventors: 谢俊; 周华国; 廖建勇
Original assignee: Shenzhen Honest Mechatronic Equipment Co Ltd
Current assignee: Shenzhen Honest Intelligent Equipment Co Ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-11-11
Anticipated expiration: 2032-04-06

Abstract

The utility model discloses a stator presss from both sides machine in advance, press from both sides the mechanism in advance including being used for to stator location and pressing from both sides tight to stator U-shaped terminal in advance, press from both sides the mechanism in advance and include support, mounting panel, be used for extruding stator U-shaped terminal and then make the clamping device of stator U-shaped terminal tight wire rod, be used for driving the clamping cylinder that clamping device opened and shut, be used for making the stator remain stable with the cooperation clamping device clamping wire positioner, be used for driving positioning device, clamping cylinder and the positioning motor that clamping device goes up and down in step. After motor stator coiled the line, its stator lead-out wire can reserve unnecessary length, and the manual work cuts, influences motor stator's production efficiency, and the line double-layered line is dialled to the manual work moreover, dials into the depth difference of stator U-shaped terminal with the wire rod, the tight dynamics of clamp is also different, and the quality of stator is uneven, the utility model provides a stator presss from both sides machine in advance can effectively overcome the drawback in the above-mentioned stator production process, improves production efficiency, practices thrift manufacturing cost, promotes the quality of stator.

Description

Stator pre-clamping machine

Technical Field

The utility model relates to a motor assembly field, concretely relates to stator presss from both sides machine in advance.

Background

In the manufacturing of a motor, the quality of stator manufacturing is a key place for determining the quality of the motor, redundant wires can be led out from a stator winding coil, a U-shaped terminal is positioned on the side face of the stator, the wire is pulled into the U-shaped terminal and clamped tightly during stator trimming welding, the redundant wires are cut off, the U-shaped terminal and the wires are welded, the length of a stator lead is easy to overlong or overlong, so that the assembly efficiency and the quality of a compressor are affected, after the wire is wound around a motor stator in the prior art, redundant lengths of stator lead-out wires can be reserved, most of the redundant lengths of the stator lead-out wires need to be cut off by using a pair of scissors manually, before trimming, the wires are pulled into the inner side of the U-shaped terminal of the stator manually and clamp the U-shaped terminal of the stator from the outer side of the U-shaped terminal of the stator inwards by using tools such as pliers, so that the U-shaped terminal of the stator is plastically deformed, so that the U-shaped terminal of the stator clamps the wires, manual measurement is carried out, manual cutting is carried out, the production efficiency of the motor stator is affected, the manual wire pulling into the stator clamping wires, the stator terminal is pulled into the stator with different in shallow U-shaped terminal, and the stator clamping force is not uniform.

Therefore, a stator pre-clamping machine is desired to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to have proposed the stator and press from both sides the machine in advance to above-mentioned problem, overcomes the drawback in the stator production process, improves production efficiency, practices thrift manufacturing cost, promotes the quality of stator.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a stator pre-clamping machine comprises a pre-clamping mechanism for positioning a stator and pre-clamping a U-shaped terminal of the stator, wherein the pre-clamping mechanism comprises a support, a mounting plate, a wire clamping device for extruding the U-shaped terminal of the stator to clamp a wire, a wire clamping cylinder for driving the wire clamping device to open and close, a positioning device for enabling the stator to keep stable to match with the wire clamping device, and a positioning motor for driving the positioning device, the wire clamping cylinder and the wire clamping device to synchronously lift; the stator pre-clamping machine also comprises a conveying mechanism, a rotating mechanism and a wire poking mechanism, wherein the conveying mechanism is used for moving the stator into or out of the position right below the pre-clamping mechanism, the rotating mechanism is used for driving the stator to rotate so as to transfer wires into or out of the position right below the wire clamping device one by one, and the wire poking mechanism is used for being matched with the rotating mechanism to poke the wires into the U-shaped terminals of the stator; the conveying mechanism is transversely arranged below the pre-clamping mechanism, the rotating mechanism is arranged at the output end of the conveying mechanism and is movably located right below the pre-clamping mechanism, and the wire shifting mechanism is located beside the pre-clamping mechanism.

Preferably, the mounting plate is provided with a vertical guide rail, the positioning motor is vertically and downwardly mounted on the mounting plate, and the output end of the positioning motor is movably mounted on the guide rail.

Preferably, the positioning device comprises a U-shaped assembly and a baffle assembly, and the U-shaped assembly and the baffle assembly form an accommodating space for installing the wire clamping device.

Preferably, an L-shaped assembly for mounting the positioning block is vertically arranged on one side surface of the U-shaped assembly, and the vertical surface of the L-shaped assembly is mounted on the side surface of the U-shaped assembly.

Preferably, a position of the positioning block, which is close to the thread clamping device, is provided with a notch which is convenient for the thread clamping device to clamp the thread.

Preferably, the thread clamping device comprises a pair of clamping arms and a triangular chuck, the pair of clamping arms penetrate through the accommodating space in the vertical direction and are pivoted on the U-shaped assembly and the baffle assembly, a gap used for rotation is reserved between the pair of clamping arms, the upper portions of the pair of clamping arms are elastically connected through tension springs, and the output end of the thread clamping cylinder is provided with a wedge block used for retreating or wedging the gap so as to enable the triangular chuck to be opened and closed.

Preferably, a clamping component for installing a tension spring is arranged on each of the pair of clamping arms, and the tension spring is detachably installed on the pair of clamping components.

Preferably, dial line mechanism including be used for dialling the wire rod into the line rifle of dialling of stator U-shaped terminal, be used for the drive to dial the line rifle vertically to stretch into or shift out the vertical line cylinder of dialling in wire rod the place ahead and be used for the vertical line electric jar of dialling that the drive vertically dials the line cylinder and goes up and down, dial the line rifle level and vertically install and vertically dial the output and the retractable of line cylinder and be located vertically between dialling line device and the wire rod, vertically dial the line cylinder and install vertical line electric jar of dialling.

Preferably, the thread drawing gun is needle-shaped.

Preferably, the rotating direction of the rotating mechanism is opposite to the opening direction of the stator U-shaped terminal to be clamped.

The utility model provides a technical problem be, after the motor stator among the prior art has been around the line, its stator lead-out wire can reserve unnecessary length, need earlier artifical instrument of dialling the wire rod into the inboard of stator U-shaped terminal and using pliers and so on before the trimming to inwards press from both sides stator U-shaped terminal from the stator U-shaped terminal outside, make stator U-shaped terminal take place plastic deformation, and then make the tight wire rod of stator U-shaped terminal clamp, carry out manual measurement afterwards, artifical cutting, influence motor stator's production efficiency, and artifical line clamp of dialling, the depth degree of dialling into stator U-shaped terminal with the wire rod is different, tight dynamics is also different, the quality discrepancy of stator. The utility model provides a stator presss from both sides machine in advance can effectively overcome the drawback in the above-mentioned stator production process, improves production efficiency, practices thrift manufacturing cost, promotes the quality of stator.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Wherein:

FIG. 1 is a schematic perspective view of a stator pre-clamping machine according to the present invention;

fig. 2 is a top view of the stator pre-clamping machine of the present invention.

The attached drawings indicate the following:

10. a pre-clamping mechanism; 11. a support; 111. a fastener; 12. mounting a plate; 121. a guide rail; 13. a positioning device; 131. an extension plate; 132. a U-shaped component; 133. a baffle plate assembly; 134. Positioning blocks; 135. an L-shaped component; 136. a fixing plate; 14. a wire clamping device; 141. clamping arms; 142. a triangular chuck; 143. a pivoting lever; 144. a tension spring; 15. positioning a motor; 16. A wire clamping cylinder; 161. a wedge block; 20. a conveying mechanism; 21. a slide rail; 22. a slide plate; 221. a jig; 222. a rodless electric cylinder; 30. a rotation mechanism; 31. a rotating electric machine; 40. a wire-pulling mechanism; 41. a line drawing gun; 42. a longitudinal wire shifting cylinder; 43. vertical wire-shifting electric cylinder.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in fig. 1 to 2, a stator pre-clamping machine comprises a pre-clamping mechanism 10 for positioning a stator and pre-clamping a U-shaped terminal of the stator, wherein the pre-clamping mechanism comprises a support 11, a mounting plate 12, a wire clamping device 14 for extruding the U-shaped terminal of the stator so as to clamp a wire by the U-shaped terminal of the stator, a wire clamping cylinder 16 for driving the wire clamping device to open and close, a positioning device 13 for keeping the stator stable to match with the wire clamping device, and a positioning motor 15 for driving the positioning device, the wire clamping cylinder 16 and the wire clamping device 14 to synchronously lift, the mounting plate 12 is mounted on the support 11, the positioning motor 15 is mounted on the mounting plate 12, the positioning device 13 is mounted at an output end of the positioning motor 15, and the wire clamping cylinder 16 and the wire clamping device 14 are mounted on the positioning device 13; the stator pre-clamping machine also comprises a conveying mechanism 20 for moving the stator into or out of the position right below the pre-clamping mechanism 10, a rotating mechanism 30 for driving the stator to rotate to transfer the wire materials into or out of the position right below the wire clamping device 14 one by one, and a wire poking mechanism 40 for matching with the rotating mechanism 30 to poke the wire materials into the U-shaped terminals of the stator; the conveying mechanism 20 is transversely arranged below the pre-clamping mechanism 10, the rotating mechanism 30 is installed at the output end of the conveying mechanism 20 and is movably located right below the pre-clamping mechanism 10, and the wire poking mechanism 40 is located beside the pre-clamping mechanism 10. The direction of the conveyor 20 is noted as the lateral direction.

The number of the brackets 11 is plural, preferably four, and the brackets 11 are distributed in two rows, the brackets 11 in the same row are transversely and fixedly connected by using fasteners 111, the plural brackets 11 and the brackets 11 on the same side are transversely and fixedly connected by using fasteners 111, and the design structure ensures that the brackets 11 have stability; a mounting plate 12 is vertically and fixedly mounted on the upper part of the two rows of brackets 11, and a vertical guide rail 121 is mounted on the mounting plate 12, and the guide rail 121 is used for increasing the stability of the output end of the positioning motor 15. The positioning motor 15 is vertically and downwards fixedly arranged in the middle of the mounting plate 12; the output end of the positioning motor 15 is movably mounted on the guide rail 121. The positioning device 13 is arranged at the output end of the positioning motor 15, and a longitudinal vertical extension plate 131 is arranged at the output end of the positioning motor 15; the lower part of the extension plate 131 is provided with a U-shaped component 132 perpendicular to the extension plate 131 and horizontally, the U-shaped opening of the U-shaped component 132 faces the direction away from the extension plate 131, and the surface of the U-shaped component 132 opposite to the direction of the U-shaped opening is fixedly connected with the extension plate 131; the surface corresponding to the U-shaped opening of the U-shaped component 132 is detachably provided with a baffle component 133, and the U-shaped component 132 is detachably connected with the baffle component 133 to form an accommodating space for installing the wire clamping device 14; an L-shaped component 135 used for installing a positioning block 134 is detachably and vertically arranged on one side face of the U-shaped component 132, the vertical face of the L-shaped component 135 is detachably connected with the side face of the U-shaped component 132, the bending direction of the horizontal plane of the L-shaped component 135 faces the direction below the U-shaped component 132, the horizontal plane of the L-shaped component 135 is located below the side face of the U-shaped component 132, a positioning block 134 used for abutting against and fixing a stator is fixedly installed on the lower portion of the horizontal plane of the L-shaped component 135, the positioning block 134 is circular in a notch, the diameter of the positioning block 134 is consistent with that of a stator core, the positioning block 134 is located above the stator, the positioning block 134 is located above a U-shaped terminal of the stator, the notch can be in any shape, preferably in a U shape, a minor arc notch is further formed in the direction of the U-shaped notch of the positioning block 134, and the arrangement of the U-shaped notch and the minor arc notch of the positioning block 134 are arranged to reserve a wire clamping space for a wire clamping device on the premise of ensuring the stator to be fixed. The positioning motor 15 drives the positioning device 13 and the wire clamping device 14 to descend, so that the positioning block 134 of the positioning device 13 extends into the stator and simultaneously the pair of triangular clamping heads 142 reaches the outside of the U-shaped terminal of the stator, the wire clamping cylinder 16 drives the wedge-shaped block 161 to wedge into a gap between the pair of clamping arms 141 of the wire clamping device 14, so that the upper parts of the pair of clamping arms 141 are opened, the tension spring 144 is pulled open, and simultaneously the pair of triangular clamping heads 142 clamp the U-shaped terminal of the stator; the output end of the positioning electric cylinder 15 is raised, the wire clamping cylinder 16 drives the wedge block 161 to rise, the tension spring 144 contracts and pulls the lower portions of the pair of clamping arms 141 and the pair of triangular chucks 142 into a relaxed state.

The thread clamping device 14 comprises a pair of clamping arms 141, a pair of triangular chucks 142 installed at the lower ends of the pair of clamping arms for clamping threads, and a pair of pivoting rods 143 for pivoting the pair of clamping arms 141, wherein the pair of clamping arms 141 vertically penetrate through the U-shaped opening of the U-shaped assembly 132 and are transversely pivoted on the U-shaped assembly 132 and the corresponding baffle assembly 133, specifically, the pair of clamping arms 141 are pivoted on the surface corresponding to the U-shaped opening of the U-shaped assembly 132 and the baffle assembly 133 by the pair of pivoting rods 143, the pivoting rods 143 for pivoting the pair of clamping arms 141 are kept at a certain distance so that a rotatable gap is left between the pair of clamping arms 141, one triangular chuck 142 is installed at the lower part of the gap side surface between the pair of clamping arms 141, the inclined surfaces of the pair of triangular chucks 142 are on the outer side and the inner side, and the pair of triangular chucks 142 are located right above the threads. A tension spring 144 having a contracting function is connected to upper ends of the upper portions of the pair of arm parts 141, and the tension spring 144 acts to contract the upper portions of the pair of arm parts 141 and maintain lower portions of the pair of arm parts 141 and the pair of collet jaws 142 in a relaxed state. The moving range of the triangular chuck 142 of the clamping arm 141 close to the positioning block 134 comprises a U-shaped notch and a minor arc notch, and specifically, when the wire clamping device 14 descends, the triangular chuck 142 of the clamping arm 141 close to the positioning block 134 passes through the U-shaped notch and moves longitudinally at the positions of the U-shaped notch and the minor arc notch to clamp or release the stator U-shaped terminal. The rotating motor 31 continues to rotate, and the clamping electric cylinder 23 is matched with the wire clamping device 14 to repeatedly clamp the wire; after the wire clamping is finished, the vertical wire-pulling electric cylinder 43 of the wire-pulling mechanism 40 drives the wire-pulling gun 41 to ascend, the clamping electric cylinder 23 drives the wire-clamping device 14 to ascend, and the rodless electric cylinder 222 of the conveying device drives the jig 221 to leave the position below the positioning block 134 of the fixing mechanism.

The wire clamping cylinder 16 is installed on the upper portion of the extension plate 131 and ascends and descends synchronously with the positioning device 13 along with the ascending and descending of the output end of the positioning motor 15. Specifically, a fixing plate 136 is detachably mounted on the upper portion of the extension plate 131, the fixing plate 136 is horizontally perpendicular to the extension plate 131, the wire clamping cylinder 16 is vertically nested downwards in the fixing plate 136, the output end of the wire clamping cylinder 16 is a wedge-shaped block 161, the wire clamping cylinder 16 is used for driving the wedge-shaped block 161 to wedge into or withdraw from the gap between the upper portions of the pair of clamping arms 141 so as to drive the wire clamping device 14 to open or close, specifically, when the wire clamping cylinder 16 drives the wedge-shaped block 161 to descend, two sides of the wedge-shaped block 161 and the inner sides of the upper portions of the pair of clamping arms 141 are frictionally squeezed and wedged into the gap between the upper portions of the pair of clamping arms 141, the upper portions of the pair of clamping arms 141 are far away from each other, the gap between the upper portions of the pair of clamping arms 141 is increased, the pair of clamping arms 141 rotate around the pair of pivoting rods 143, correspondingly, the lower portions of the pair of clamping arms 141 are close to each other, and the gap is decreased, so that the vertical surfaces of the two triangular clamping heads 142 are attached and clamped. The positioning motor 15 drives the positioning device 13 and the wire clamping device 14 to descend, so that the positioning block 134 of the positioning device 13 extends into the stator and simultaneously the pair of triangular clamping heads 142 reaches the outside of the U-shaped terminal of the stator, the wire clamping cylinder 16 drives the wedge-shaped block 161 to wedge into a gap between the pair of clamping arms 141 of the wire clamping device 14, so that the upper parts of the pair of clamping arms 141 are opened, the tension spring 144 is pulled open, and simultaneously the pair of triangular clamping heads 142 clamp the U-shaped terminal of the stator; the output end of the positioning electric cylinder 15 is raised, the wire clamping cylinder 16 drives the wedge block 161 to rise, the tension spring 144 contracts and pulls the lower portions of the pair of clamping arms 141 and the pair of triangular chucks 142 into a relaxed state.

The conveying mechanism 20 is transversely arranged in the middle of the support 11 and located right below the positioning device 13, the conveying mechanism 20 is a rail integrated electric cylinder, and comprises a slide rail 21, a slide plate 22 movably mounted on the slide rail 21, and a rodless electric cylinder 222 used for driving the slide plate 22 to enter or move out of the position right below the positioning block 134, and the rodless electric cylinder 222 is integrally connected with the slide rail 21.

The slide plate 22 is provided with a hollow jig 221 for placing a stator.

The rotating mechanism 30 is installed under the jig 221 of the conveying mechanism 20, the rotating mechanism 30 includes a rotating motor 31 and a rotating jig 221 located at the output end of the rotating motor 31, the jig 221 is installed on the upper portion of the sliding plate 22, the rotating motor 31 is installed at the bottom of the sliding plate 22, and the output end of the rotating motor 31 and the jig 221 are connected through the sliding plate 22. The rotating direction of the rotating motor 31 is opposite to the opening direction of the stator U-shaped terminal to be clamped, and the wire is pulled into the stator U-shaped terminal by matching with the wire pulling device 40. The rotating mechanism 30 is installed in the sliding plate 22 of the conveying mechanism 20, when the stator is placed into the fixture 221, the rodless cylinder 222 of the conveying mechanism 20 drives the fixture 221 to move to the position below the positioning block 134 of the fixing mechanism; the rotating mechanism 30 drives the stator to rotate along the direction opposite to the opening direction of the U-shaped terminal of the stator.

The wire poking mechanism 40 is installed beside the side of the support 11, the wire poking mechanism 40 comprises a wire poking gun 41 for poking wires into a U-shaped terminal of the stator, a longitudinal wire poking cylinder 42 for driving the wire poking gun 41 to longitudinally extend into or move out of the front of the wires and a vertical wire poking electric cylinder 43 for driving the longitudinal wire poking cylinder 42 to lift, the wire poking gun 41 is horizontally and longitudinally installed at the output end of the longitudinal wire poking cylinder 42, the longitudinal wire poking cylinder 42 is installed on the vertical wire poking electric cylinder 43, and the wire poking gun 41 is in a needle shape. Specifically, when the wire rotates, the wire-poking gun 41 extends into the front of the excess wire to block the advance, and the wire is poked into the U-shaped terminal of the stator by the wire-poking gun 41. The vertical wire-pulling electric cylinder 43 of the wire-pulling mechanism 40 drives the vertical wire-pulling cylinder 42 and the wire-pulling gun 41 to descend; the longitudinal wire-shifting cylinder 42 drives the wire-shifting gun 41 to longitudinally extend out and contact with a vertical wire, and the wire is shifted into the U-shaped terminal of the stator.

The principle and the flow of the machine are as follows: the rotating mechanism 30 is installed in the sliding plate 22 of the conveying mechanism 20, when the stator is placed into the fixture 221, the rodless cylinder 222 of the conveying mechanism drives the fixture 221 to move to the position below the positioning block 134 of the fixing mechanism; the rotating mechanism 30 drives the stator to rotate along the direction opposite to the opening direction of the U-shaped terminal of the stator; the vertical wire-pulling electric cylinder 43 of the wire-pulling mechanism 40 drives the vertical wire-pulling cylinder 42 and the wire-pulling gun 41 to descend; the longitudinal wire-poking cylinder 42 drives the wire-poking gun 41 to longitudinally extend out and touch a vertical wire, and the wire is poked into the U-shaped terminal of the stator; the positioning motor 15 drives the positioning device 13 and the wire clamping device 14 to descend, so that the positioning block 134 of the positioning device 13 extends into the stator and simultaneously the pair of triangular chucks 142 reach the outside of the U-shaped terminal of the stator, the wire clamping cylinder 16 drives the wedge-shaped block 161 to wedge into a gap between the pair of clamping arms 141 of the wire clamping device 14, so that the upper parts of the pair of clamping arms 141 are opened, the tension spring 144 is pulled open, and simultaneously the pair of triangular chucks 142 clamp the U-shaped terminal of the stator; the output end of the positioning electric cylinder 15 rises, the wire clamping cylinder 16 drives the wedge block 161 to rise, the tension spring 144 contracts and pulls the lower parts of the pair of clamping arms 141 and the pair of triangular clamping heads 142 into a relaxation state; the rotating motor 31 continues to rotate, and the clamping electric cylinder 23 is matched with the wire clamping device 14 to repeatedly clamp the wire; after the wire clamping is finished, the vertical wire-pulling electric cylinder 43 of the wire-pulling mechanism 40 drives the wire-pulling gun 41 to ascend, the clamping electric cylinder 23 drives the wire-clamping device 14 to ascend, and the rodless electric cylinder 222 of the conveying device drives the jig 221 to leave the position below the positioning block 134 of the fixing mechanism.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can substitute or change the technical solution of the present application and the inventive concept thereof within the technical scope of the present application, and shall be covered by the scope of the present application. In addition, although specific terms are used herein, they are used in a descriptive sense only and not for purposes of limitation.

Claims

1. A stator pre-clamping machine is characterized by comprising a pre-clamping mechanism for positioning a stator and pre-clamping a U-shaped terminal of the stator, wherein the pre-clamping mechanism comprises a support, a mounting plate, a wire clamping device for extruding the U-shaped terminal of the stator to clamp a wire, a wire clamping cylinder for driving the wire clamping device to open and close, a positioning device for keeping the stator stable to match with the wire clamping device for clamping the wire, and a positioning motor for driving the positioning device, the wire clamping cylinder and the wire clamping device to synchronously lift, the mounting plate is mounted on the support, the positioning motor is mounted on the mounting plate, the positioning device is mounted at the output end of the positioning motor, and the wire clamping cylinder and the wire clamping device are mounted on the positioning device; the stator pre-clamping machine also comprises a conveying mechanism used for moving the stator into or out of the position right below the pre-clamping mechanism, a rotating mechanism used for driving the stator to rotate to transfer the wire rods into or out of the position right below the wire clamping device one by one, and a wire shifting mechanism used for matching with the rotating mechanism to shift the wire rods into the U-shaped terminals of the stator; the conveying mechanism is transversely arranged below the pre-clamping mechanism, the rotating mechanism is arranged at the output end of the conveying mechanism and is movably located right below the pre-clamping mechanism, and the wire shifting mechanism is located beside the pre-clamping mechanism.

2. The stator pre-clamping machine according to claim 1, wherein the mounting plate is provided with a vertical guide rail, the positioning motor is vertically and downwardly mounted on the mounting plate, and an output end of the positioning motor is movably mounted on the guide rail.

3. The stator pre-clamping machine according to claim 1, wherein the positioning device comprises a U-shaped assembly and a baffle assembly, and the U-shaped assembly and the baffle assembly form an accommodating space for installing a wire clamping device.

4. The stator pre-clamping machine according to claim 3, wherein an L-shaped assembly for installing a positioning block is vertically arranged on one side surface of the U-shaped assembly, and the vertical surface of the L-shaped assembly is installed on the side surface of the U-shaped assembly.

5. The stator pre-clamping machine as claimed in claim 4, wherein the positioning block is provided with a notch for facilitating the clamping of the wire clamping device at a position close to the wire clamping device.

6. The stator pre-clamping machine according to claim 3, wherein the wire clamping device comprises a pair of clamping arms and a triangular chuck, the pair of clamping arms vertically penetrates through the accommodating space and is pivoted on the U-shaped assembly and the baffle assembly, a gap for rotation is kept between the pair of clamping arms, the upper parts of the pair of clamping arms are elastically connected through a tension spring, and the output end of the wire clamping cylinder is provided with a wedge block for retreating or wedging the gap to open and close the triangular chuck.

7. The stator pre-clamping machine as claimed in claim 6, wherein the pair of clamping arms are respectively provided with a clamping component for mounting a tension spring, and the tension spring is detachably mounted on the pair of clamping components.

8. The stator pre-clamping machine according to claim 1, wherein the wire-poking mechanism comprises a wire-poking gun for poking wires into the U-shaped terminal of the stator, a longitudinal wire-poking cylinder for driving the wire-poking gun to longitudinally extend into or out of the front of the wires, and a vertical wire-poking electric cylinder for driving the longitudinal wire-poking cylinder to lift, the wire-poking gun is horizontally and longitudinally arranged at the output end of the longitudinal wire-poking cylinder and is telescopic and positioned between the longitudinal wire-poking device and the wires, and the longitudinal wire-poking cylinder is arranged on the vertical wire-poking electric cylinder.

9. The stator pre-clamping machine of claim 8, wherein the wire-setting gun is needle-shaped.

10. The stator pre-clamping machine according to claim 1, wherein the rotating direction of the rotating mechanism is opposite to the opening direction of the stator U-shaped terminal to be clamped.