Coil tail coil thread end twisting device for coreless motor coil automatic production line

Abstract

The utility model discloses a coil last coil thread end twisting device for a coreless motor coil automatic production line, which comprises a sliding mounting frame and a clamping and rotating unit mounted on the sliding mounting frame, and the clamping and rotating unit comprises a pneumatic opening and closing clamping jaw, a rotating main shaft, a rotating joint and a rotating drive; the rotating main shaft is mounted on the sliding mounting frame, and the rotating main shaft is rotationally connected with the sliding mounting frame; the rotary drive is mounted on the sliding mounting frame, is positioned on one side of the rotary main shaft and is used for driving the rotary main shaft to rotate; the pneumatic opening and closing clamping jaw and the rotating connector are installed at the two ends of the rotating main shaft respectively. And a pressure gas circuit is arranged on the rotating main shaft. Compared with the prior art, the device is applied to an automatic production line of a coreless motor coil, and automatic twisting of wire ends at the two ends of a coreless coil semi-finished product can be achieved. The device is compact in overall structure, small in size and accurate and reliable in action.

Description

Technical Field

[0001] The utility model belongs to the technical field of hollow cup coil production, in particular to a coil last turn thread end twisting device used for a hollow cup motor coil automatic production line. Background Art

[0002] The coreless motor coil is a coil wrapped around the coreless motor shaft, and is shaped like a coreless motor body. When in use, magnets are provided inside and outside the coil.

[0003] The production process of hollow cup motor coil includes: first winding and forming, and then making Figure 1 As shown, a sheet-like hollow cup coil semi-finished product 100 has a thread end 101 extending from the last circle at each end. The sheet-like hollow cup coil semi-finished product is then attached to a suitable shaping column 200 and lifted up for rolling and shaping. The thread ends at both ends are then twisted together, and the tail wires are cut to obtain a ring-shaped hollow cup coil semi-finished product 300. Subsequent processes such as tinning and rounding are then carried out to obtain a finished hollow cup motor coil (this description is only for providing background information related to the present utility model and does not constitute prior art).

[0004] The prior art lacks an automated device for twisting the two ends of the wire together.

[0005] Therefore, it is necessary to provide a new coil end twisting device for the hollow cup motor coil automatic production line to solve the above technical problems. Summary of the Invention

[0006] (1) Technical issues to be resolved

[0007] Based on this, the utility model provides a coil end thread twisting device for an automatic production line of hollow cup motor coils, aiming to solve the lack of a device in the prior art for automatically twisting the end threads of the hollow cup coil semi-finished products.

[0008] (2) Technical solution

[0009] In order to solve the above technical problems, the utility model proposes a coil end twisting device for a hollow cup motor coil automatic production line, comprising: a sliding mounting frame and a clamping and rotating unit mounted on the sliding mounting frame, the clamping and rotating unit comprising: a pneumatic opening and closing clamping jaw, a rotating spindle, a rotating joint and a rotating drive; the rotating spindle is mounted on the sliding mounting frame, and the rotating spindle is rotatably connected to the sliding mounting frame; the rotating drive is mounted on the sliding mounting frame, and the rotating drive is located on one side of the rotating spindle and is used to drive the The rotating spindle rotates; the pneumatic opening and closing clamps and the rotary joint are respectively installed at the two ends of the rotating spindle; a pressure air circuit is provided on the rotating spindle, and the pneumatic opening and closing clamps include: a casing, two clamping fingers arranged at the same end of the casing, and a driving air circuit inlet arranged on the side of the casing, the two ends of the pressure air circuit are respectively an air source connecting end and an air clamping end, the air source connecting end is connected to the rotary joint for introducing a pressure air source; the air clamping end is connected to the driving air circuit inlet for introducing pressure gas to drive the two clamping fingers to open and / or close.

[0010] Preferably, the air claw end is located on one side of the rotating spindle, the air claw end is provided with an air pipe joint, the driving air circuit inlet is provided with a speed regulating valve, and the clamping and rotating unit also includes a connecting air pipe connecting the air pipe joint and the speed regulating valve.

[0011] Preferably, the coil end thread tightening device for the hollow cup motor coil automatic production line also includes a telescopic drive and a fixed mounting frame, the fixed mounting frame is arranged on one side of the sliding mounting frame, and the sliding mounting frame is slidably connected to the fixed mounting frame, the telescopic drive includes a cylinder body and a cylinder rod, the coil end thread tightening device for the hollow cup motor coil automatic production line also includes a floating joint connected to the cylinder rod, the cylinder body is fixedly mounted on the fixed mounting frame; the cylinder rod is connected to the sliding mounting frame via the floating joint, and is used to drive the sliding mounting frame to slide; the clamping and rotating unit also includes a bearing seat, the rotating main shaft passes through the bearing seat, and a bearing is provided between the rotating main shaft and the bearing seat.

[0012] Preferably, the rotary drive includes: a rotary motor, a driving toothed belt pulley, a rotary motor for driving the driving toothed belt pulley to rotate, a driven toothed belt pulley fixedly sleeved outside the rotating main shaft, and a toothed transmission belt arranged around the driving toothed belt pulley and the driven toothed belt pulley and used to transmit the power of the driving toothed belt pulley to the driven toothed belt pulley; the rotary motor is installed on the sliding mounting frame.

[0013] Preferably, the sliding mounting frame includes: a spindle mounting plate, a joint mounting plate, a motor mounting plate, a slider mounting plate and a connecting column; the joint mounting plate is spaced apart and arranged just above the spindle mounting plate, and the motor mounting plate is located on one side above the spindle mounting plate; both ends of the connecting column are fixedly connected to the spindle mounting plate and the motor mounting plate respectively; the slider mounting plate is located on the other side above the spindle mounting plate, and the upper and lower ends of the slider mounting plate are fixedly connected to the joint mounting plate and the spindle mounting plate respectively; the bearing seat passes through the spindle mounting plate, and the bearing The seat is fixedly connected to the spindle mounting plate, the floating joint is mounted on the joint mounting plate, and the slider mounting plate is fixedly connected to the fixed mounting frame; the spindle mounting plate, the motor mounting plate and the connecting column together form a transmission component installation space; the driving toothed pulley, the driven toothed pulley, the toothed conveyor belt and the upper part of the bearing seat are all located in the transmission component installation space, the upper part of the rotating motor is mounted on the upper part of the motor mounting plate, and the lower part of the rotating motor passes through the motor mounting plate and extends into the transmission component installation space and is connected to the driving toothed pulley.

[0014] Preferably, the height of the joint mounting plate is higher than the height of the motor mounting plate.

[0015] Preferably, the fixed mounting frame includes: a cylinder mounting plate arranged above the joint mounting plate, a guide rail mounting plate located at the lower part of the slider mounting plate away from the motor mounting plate; the cylinder mounting plate and the guide rail mounting plate together form a right-angle plate shape; the cylinder body is installed on the upper part of the cylinder mounting plate, and the cylinder rod passes through the cylinder mounting plate; a guide rail slider assembly is provided between the slider mounting plate and the guide rail mounting plate, and the slider mounting plate is fixedly connected to the fixed mounting frame via the guide rail slider assembly, and the guide rail slider assembly includes: a guide rail body fixedly connected to the guide rail mounting plate, a slider body fixedly connected to the slider mounting plate, and the guide rail body and the slider body are slidably connected.

[0016] Preferably, the bearing seat includes a seat body that is annular as a whole, a raised seat flange is provided on the outer side of the seat body, the lower part of the seat body extends into the spindle mounting plate, and the seat flange is fixedly connected to the spindle mounting plate.

[0017] Preferably, the telescopic drive is an oil cylinder or a pneumatic cylinder.

[0018] Preferably, the two clamping fingers are respectively the first clamping finger and the second clamping finger, the first clamping finger is connected to the first thread twisting hook needle, the second clamping finger is connected to the second thread twisting hook needle, the first thread twisting hook needle is provided with a wire pressing wire protruding toward the second thread twisting hook needle at one end away from the first clamping finger, the second thread twisting hook needle is provided with a pressure head protruding toward the first thread twisting hook needle at one end away from the second clamping finger, and the pressure head is provided with a concave wire pressing groove at a position opposite to the wire pressing wire.

[0019] (3) Beneficial effects

[0020] Compared with the existing technology, the application of the present invention to the automated production line of hollow cup motor coils can automatically twist the ends of the hollow cup coil semi-finished products together. In addition, the device of the present invention has a compact overall structure, a small size, and precise and reliable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 The schematic diagram of the manufacturing process of the hollow cup motor coil mentioned in the background technology section of this utility model;

[0023] Figure 2 A three-dimensional diagram of the overall structure of the utility model Figure 1 ;

[0024] Figure 3 A three-dimensional diagram of the overall structure of the utility model Figure 2 ;

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle;

[0026] Figure 5 This is a schematic diagram of the overall structure of the utility model;

[0027] Figure 6 For the Figure 5 Schematic cross-sectional view along the midline BB.

[0028] Description of reference numerals:

[0029] 100, sheet-shaped hollow cup coil semi-finished product; 101, thread end; 200, shaping column; 300, annular hollow cup coil semi-finished product;

[0030] 1. Sliding mounting frame; 2. Clamping and rotating unit; 3. Telescopic drive; 4. Fixed mounting frame; 5. Floating joint; 6. Guide rail slider assembly;

[0031] 11. Spindle mounting plate; 12. Connector mounting plate; 13. Motor mounting plate; 14. Slider mounting plate; 15. Connecting column; 16. Transmission component installation space;

[0032] 21. Pneumatic opening and closing gripper; 22. Rotating spindle; 23. Rotary joint; 24. Rotary drive; 25. Bearing seat; 26. Bearing; 27. Air pipe joint;

[0033] 31. Cylinder body; 32. Cylinder rod;

[0034] 41. Cylinder mounting plate; 42. Guide rail mounting plate;

[0035] 61. Guide rail body; 62. Slider body;

[0036] 211, first gripping finger; 212, second gripping finger; 213, first thread-twisting hook; 214, second thread-twisting hook; 215, thread-pressing wire; 216, pressing head; 217, thread-pressing groove; 218, speed regulating valve; 219, connecting air pipe; 230, housing; 221, pressure air circuit; 222, air source connection end; 223, air claw connection end;

[0037] 241. Rotating motor; 242. Driving toothed pulley; 243. Driven toothed pulley; 244. Toothed conveyor belt;

[0038] 251. Seat body; 252. Seat flange. DETAILED DESCRIPTION

[0039] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] The following is combined with Figure 1-6 The utility model is further described on the coil last turn thread end twisting device used in the hollow cup motor coil automatic production line.

[0041] The utility model discloses a coil end twisting device for an automatic production line of a coreless cup motor coil, comprising: a sliding mounting frame 1 and a clamping and rotating unit 2 mounted on the sliding mounting frame 1, wherein the clamping and rotating unit 2 comprises: a pneumatic opening and closing clamping jaw 21, a rotating spindle 22, a rotating joint 23 and a rotating drive 24; the rotating spindle 22 is mounted on the sliding mounting frame 1, and the rotating spindle 22 is rotatably connected to the sliding mounting frame 1; the rotating drive 24 is mounted on the sliding mounting frame 1, and the rotating drive 24 is located on one side of the rotating spindle 22 and is used to drive the rotating spindle 22 to rotate; the pneumatic opening and closing clamping jaw 21 is a pneumatic opening and closing clamping jaw 21, a rotating spindle 22, a rotating joint 23 and a rotating drive 24; the rotating spindle 22 is mounted on the sliding mounting frame 1, and the rotating spindle 22 is rotatably connected to the sliding mounting frame 1; the rotating drive 24 is mounted on the sliding mounting frame 1, and the rotating drive 24 is located on one side of the rotating spindle 22 and is used to drive the rotating spindle 22 to rotate; The claw 21 and the rotary joint 23 are respectively installed at the two ends of the rotating main shaft 22; a pressure air circuit 221 is provided on the rotating main shaft 22, and the pneumatic opening and closing clamping claw 21 includes: a housing 230, two clamping fingers arranged at the same end of the housing 230, and a driving air circuit inlet (not shown in the figure) arranged on the side of the housing 230. The two ends of the pressure air circuit 221 are respectively an air source connecting end 222 and an air claw connecting end 223. The air source connecting end 222 is connected to the rotary joint 23 for introducing a pressure air source; the air claw connecting end 223 is connected to the driving air circuit inlet for introducing pressure gas to drive the two clamping fingers to open and / or close.

[0042] The components and their functions in this embodiment are described in detail below.

[0043] The sliding mounting frame 1 is used to provide a mounting base.

[0044] The pneumatic opening and closing jaw 21 is an existing two-finger pneumatic opening and closing jaw structure, and the pneumatic opening and closing jaw 21 can be directly purchased from outside. It can be a normally closed type or a normally open type, and its normally closed or normally open can be controlled by a spring. When it is a normally closed type, a pressure air source is used to drive the two clamping fingers to open; when it is a normally open type, a pressure air source is used to drive the two clamping fingers to close; of course, the pneumatic opening and closing jaw 21 can also be a structure that is completely driven to close and open by a pressure air source. Since the rotating main shaft 22 of this embodiment can only provide one driving air path, a reversing structure is required to be provided in the pneumatic opening and closing jaw 21 to control the driving air source to be directed to the air cavity in the pneumatic opening and closing jaw 21 to control the opening of the two clamping fingers, or to the air cavity in the pneumatic opening and closing jaw 21 to control the closing of the two clamping fingers.

[0045] The driving air inlet is located on the side of the housing 230 , which is the structure of the existing pneumatic opening and closing gripper 21 . Therefore, there is no need to change the position of the driving air inlet of the existing two-finger pneumatic opening and closing gripper.

[0046] The rotary drive 24 is used to provide rotational power. It can have various configurations, such as a combination of a motor and a belt drive. Alternatively, the motor drives a gear train, which includes a driving gear connected to the motor and a driven gear connected to the main shaft 22. The driving gear and the driven gear mesh with each other. Rotation of the motor drives the driving gear, which in turn drives the driven gear and the main shaft 22 to rotate as a whole.

[0047] The rotating spindle 22 is used to transmit the rotational power of the rotary drive 24 to the pneumatic opening and closing clamping jaws 21. The rotating spindle 22 is also used to introduce a pressurized air source into the pneumatic opening and closing clamping jaws 21 to drive the pneumatic opening and closing clamping jaws 21 to open and / or close.

[0048] The main utility model features of this embodiment are: the inner hole of the rotating main shaft 22, which is aligned with the rotation center of the pneumatic opening and closing clamping jaw 21, is used to provide a driving air source for the pneumatic opening and closing clamping jaw 21. When the pneumatic opening and closing clamping jaw 21 rotates, the rotating main shaft 22 and the pneumatic opening and closing clamping jaw 21 rotate as a whole. Pressurized air is introduced through the pressure air path 221 inside the rotating main shaft 22. The other end of the air pipe connected to the rotary joint 23 is connected to the rotating main shaft 22. The rotary joint 23 is used to connect the pressure air source and the pressure air path 221 inside the rotating main shaft 22, and can also achieve relative rotation.

[0049] The use process of the present utility model is as follows: After the motor coil is wound and pressed into a sheet, it is attached to a suitable shaping column 200 and lifted for shaping. Then, the coil end thread tightening device for the hollow cup motor coil automatic production line of this embodiment is moved as a whole to the vicinity of the thread ends 101 of the last turn of the hollow cup coil semi-finished product at both ends. The pneumatic opening and closing clamps 21 clamp the two thread ends 101 of the last turn of the hollow cup coil semi-finished product at both ends. Driven by the rotary drive 24, the pneumatic opening and closing clamps 21 rotate, driving the two thread ends 101 to rotate and twist the two end thread ends 101 together, thus completing the automatic tightening process of the thread ends 101. After the tightening is completed, the pneumatic opening and closing clamps 21 open, and the product is transferred to the next process. The use of the coil end thread tightening device for the hollow cup motor coil automatic production line of this embodiment can provide conditions for the automatic production of motor coils.

[0050] According to a specific embodiment of the present invention, the air claw end 223 is located on one side of the rotating main shaft 22, the air claw end 223 is provided with an air pipe joint 27, the driving air circuit inlet is provided with a speed regulating valve 218, and the clamping rotating unit 2 also includes a connecting air pipe 219 connecting the air pipe joint 27 and the speed regulating valve 218.

[0051] In this embodiment, the air pipe joint 27 and the speed regulating valve 218 both serve as connections. The connecting air pipe 219 is used to connect the air pipe joint 27 and the speed regulating valve 218. The speed regulating valve 218 also serves as a speed regulating function, which can adjust the speed of the two clamping finger actions.

[0052] According to a specific embodiment of the present invention, the coil end thread tightening device for the hollow cup motor coil automatic production line also includes a telescopic drive 3 and a fixed mounting frame 4, the fixed mounting frame 4 is arranged on one side of the sliding mounting frame 1, and the sliding mounting frame 1 is slidably connected to the fixed mounting frame 4, the telescopic drive 3 includes a cylinder body 31 and a cylinder rod 32, and the coil end thread tightening device for the hollow cup motor coil automatic production line also includes a floating joint 5 connected to the cylinder rod 32, the cylinder body 31 is fixedly mounted on the fixed mounting frame 4; the cylinder rod 32 is connected to the sliding mounting frame 1 via the floating joint 5, and is used to drive the sliding mounting frame 1 to slide.

[0053] In this embodiment, telescopic drive 3 provides the telescopic power and can be a pneumatic cylinder, oil cylinder, or cam. Telescopic drive 3 is used to pull the sliding mounting frame 1, along with the pneumatic opening and closing jaws 21 and rotary drive 24, to slide back and forth, thereby controlling the opening and closing jaws to move closer to or away from the workpiece (the semi-finished coil).

[0054] According to a specific embodiment of the present invention, the clamping and rotating unit 2 further includes a bearing seat 25 , the rotating main shaft 22 passes through the bearing seat 25 , and a bearing 26 is provided between the rotating main shaft 22 and the bearing seat 25 .

[0055] In this embodiment, this structure enables the rotating main shaft 22 and the bearing seat 25 to be connected to each other in a stable and smooth rotation.

[0056] According to a specific embodiment of the present invention, the rotary drive 24 includes: a rotary motor 241, a driving toothed pulley 242, a rotary motor 241 for driving the driving toothed pulley 242 to rotate, a driven toothed pulley 243 fixedly sleeved outside the rotating main shaft 22, and a toothed transmission belt 244 that is arranged around the driving toothed pulley 242 and the driven toothed pulley 243 and is used to transmit the power of the driving toothed pulley 242 to the driven toothed pulley 243; the rotary motor 241 is installed on the sliding mounting frame 1.

[0057] In this embodiment, the rotating motor 241 drives a toothed belt drive structure to provide rotational power to the rotating spindle 22. The belt drive structure can achieve long-distance transmission, avoid interference between the rotating motor 241 and the telescopic drive 3, and the toothed belt drive structure has good transmission accuracy and stability, ensuring the movement accuracy of the rotating spindle 22.

[0058] According to a specific embodiment of the present invention, the sliding mounting frame 1 includes: a spindle mounting plate 11, a joint mounting plate 12, a motor mounting plate 13, a slider mounting plate 14 and a connecting column 15; the joint mounting plate 12 is spaced apart and arranged just above the spindle mounting plate 11, and the motor mounting plate 13 is located on one side above the spindle mounting plate 11; the two ends of the connecting column 15 are respectively fixedly connected to the spindle mounting plate 11 and the motor mounting plate 13; the slider mounting plate 14 is located on the other side above the spindle mounting plate 11, and the upper and lower ends of the slider mounting plate 14 are respectively fixedly connected to the joint mounting plate 12 and the spindle mounting plate 11; the bearing seat 25 passes through the spindle mounting plate 11, The bearing seat 25 is fixedly connected to the main shaft mounting plate 11, the floating joint 5 is installed on the joint mounting plate 12, and the slider mounting plate 14 is fixedly connected to the fixed mounting frame 4; the main shaft mounting plate 11, the motor mounting plate 13 and the connecting column 15 together form a transmission component installation space 16; the driving toothed pulley 242, the driven toothed pulley 243, the toothed conveyor belt 244 and the upper part of the bearing seat 25 are all located in the transmission component installation space 16, the upper part of the rotating motor 241 is installed on the upper part of the motor mounting plate 13, and the lower part of the rotating motor 241 passes through the motor mounting plate 13 and extends into the transmission component installation space 16 and is connected to the driving toothed pulley 242.

[0059] This embodiment specifically discloses the structure of a sliding mounting frame 1 . The overall structure of the sliding mounting frame 1 is simple, reliable, and rationally arranged, providing space for the installation of the rotary drive 24 , the telescopic drive 3 , and linear slides (e.g., the guide rail and slider assembly 6 ). This is described in detail below.

[0060] One side of the spindle mounting plate 11 is connected to the motor mounting plate 13 via a connecting column 15 , and the other side of the spindle mounting plate 11 is connected to the joint mounting plate 12 via a slider mounting plate 14 to form an integrated stable structure.

[0061] The spindle mounting plate 11 is used to mount the bearing seat 25, allowing the rotating spindle 22 to penetrate and form a rotational connection structure with the spindle mounting plate 11. The motor mounting plate 13 is located on the upper side of the spindle mounting plate 11, facilitating the installation of the rotary drive 24 on one side of the spindle. Under the action of the connecting column 15, a transmission component installation space 16 is formed, providing space for the installation of related components. The output shaft of the rotating motor 241 faces downward, and the motor housing is located above the motor mounting plate 13, which can effectively avoid interference while achieving power output and fully utilize space.

[0062] According to a specific embodiment of the present invention, the height of the joint mounting plate 12 is higher than the height of the motor mounting plate 13 .

[0063] In this embodiment, a space for accommodating the rotating structure is formed below the joint mounting plate 12 , thereby ensuring the compactness of the structure and further improving the rationality of the layout.

[0064] According to the specific embodiment of the present utility model, the fixed mounting frame 4 includes: a cylinder mounting plate 41 provided above the joint mounting plate 12, and a guide rail mounting plate 42 located at the lower part of the slider mounting plate 14 away from the motor mounting plate 13; the cylinder mounting plate 41 and the guide rail mounting plate 42 together form a right-angle plate shape; the cylinder body 31 is installed on the upper part of the cylinder mounting plate 41, and the cylinder rod 32 passes through the cylinder mounting plate 41; a guide rail slider assembly 6 is provided between the slider mounting plate 14 and the guide rail mounting plate 42, and the slider mounting plate 14 is fixedly connected to the fixed mounting frame 4 via the guide rail slider assembly 6, and the guide rail slider assembly 6 includes: a guide rail body 61 fixedly connected to the guide rail mounting plate 42, and a slider body 62 fixedly connected to the slider mounting plate 14, and the guide rail body 61 and the slider body 62 are slidably connected.

[0065] In this embodiment, the guide rail mounting plate 42 is positioned closely against the slide mounting frame 1 to form a slider connection structure. The fixed mounting plate, which is a rectangular plate, cooperates with the slider mounting plate 14 to facilitate the functions of mounting plate support, relative sliding, and component installation, while forming a regular and compact structure. The guide rail slider assembly 6 can be directly purchased.

[0066] According to a specific embodiment of the present utility model, the bearing seat 25 includes a seat body 251 which is annular as a whole, and a raised seat flange 252 is provided on the outer side of the seat body 251. The lower part of the seat body 251 extends into the spindle mounting plate 11, and the seat flange 252 is fixedly connected to the spindle mounting plate 11.

[0067] In this embodiment, a specific structure of a bearing seat 25 is provided, wherein a seat body 251 is used to accommodate two upper and lower bearings 26, a seat flange 252 is fixed on the spindle mounting plate 11, and the lower part of the seat body 251 extends into the spindle mounting plate 11, which can ensure that the stability of the installation of the bearing seat 25 is further improved, and the protruding size of the bearing seat 25 is reduced, which is further conducive to the compactness of the structure.

[0068] According to a specific embodiment of the present invention, the telescopic drive 3 is an oil cylinder or a pneumatic cylinder.

[0069] In this embodiment, the oil cylinder or the air cylinder can be directly purchased from outside, and the structure is simple and the space occupied is small. The telescopic drive 3 is preferably an air cylinder, which can share an air source station with the pneumatic opening and closing jaws 21 to reduce equipment costs.

[0070] According to the specific implementation of the present utility model, the two clamping fingers are respectively the first clamping finger 211 and the second clamping finger 212, the first clamping finger 211 is connected to the first thread twisting hook needle 213, and the second clamping finger 212 is connected to the second thread twisting hook needle 214, and the end of the first thread twisting hook needle 213 away from the first clamping finger 211 is provided with a wire pressing wire 215 protruding toward the second thread twisting hook needle 214, and the end of the second thread twisting hook needle 214 away from the second clamping finger 212 is provided with a pressure head 216 protruding toward the first thread twisting hook needle 213, and the pressure head 216 is provided with a recessed wire pressing groove 217 at the position opposite to the annular wire pressing wire 215.

[0071] In this embodiment, the added thread twisting hook needles (the first thread twisting hook needle 213 and the second thread twisting hook needle 214) are used to replace the clamping fingers (the first clamping fingers 211 and the second clamping fingers 212) to directly contact the wire end 101 of the motor coil. The wire pressing wire 215 is made of steel wire and has a certain elasticity. When the wire pressing wire 215 is clamped with the wire pressing groove 217, the elastic wire pressing wire 215 can press the wire end 101 into the wire pressing groove 217. The wire pressing groove 217 can limit the wire end 101 to prevent the wire from sliding. Therefore, using the structure of this embodiment, the wire pressing wire 215 cooperates with the wire pressing groove 217 to press the wire end 101. Compared with directly using the first clamping finger 211 and the second clamping finger 212 to clamp the wire end 101, the clamping stability is better.

[0072] It should be noted that in the present invention, directional words including "upper" and "lower" are only used to describe the relative positions of components and should not be understood as limiting the structure of the present invention. The overall installation orientation of the present invention should be adjusted according to specific usage needs.

[0073] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium; it can mean internal communication between two elements, or a "transmission connection," i.e., a power connection through various appropriate means such as a belt drive, a gear drive, or a sprocket drive. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A coil end thread tightening device for an automatic production line of hollow cup motor coils, characterized in that: include:

7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod is pivotally connected to said linking rod. said linking rod is pivotally connected to said linking rod.

2. The coil end thread tightening device for the hollow cup motor coil automatic production line according to claim 1 is characterized in that: The air claw end is located on one side of the rotating spindle, the air claw end is provided with an air pipe joint, the driving air circuit inlet is provided with a speed regulating valve, and the clamping and rotating unit also includes a connecting air pipe connecting the air pipe joint and the speed regulating valve.

3. The coil end thread tightening device for the hollow cup motor coil automatic production line according to claim 2 is characterized in that: The coil end thread tightening device for the hollow cup motor coil automatic production line also includes a telescopic drive and a fixed mounting frame, the fixed mounting frame is arranged on one side of the sliding mounting frame, and the sliding mounting frame is slidably connected to the fixed mounting frame, the telescopic drive includes a cylinder body and a cylinder rod, the coil end thread tightening device for the hollow cup motor coil automatic production line also includes a floating joint connected to the cylinder rod, the cylinder body is fixedly installed on the fixed mounting frame; the cylinder rod is connected to the sliding mounting frame via the floating joint, and is used to drive the sliding mounting frame to slide; the clamping and rotating unit also includes a bearing seat, the rotating main shaft passes through the bearing seat, and a bearing is provided between the rotating main shaft and the bearing seat.

4. The coil end thread tightening device for the hollow cup motor coil automatic production line according to claim 3 is characterized in that: The rotary drive includes: a rotary motor, a driving toothed belt pulley, a rotary motor for driving the driving toothed belt pulley to rotate, a driven toothed belt pulley fixedly sleeved outside the rotating main shaft, and a toothed transmission belt arranged around the driving toothed belt pulley and the driven toothed belt pulley and used for transmitting power from the driving toothed belt pulley to the driven toothed belt pulley; the rotary motor is installed on the sliding mounting frame.

5. The coil end thread tightening device for the hollow cup motor coil automatic production line according to claim 4 is characterized in that: The sliding mounting frame includes: a spindle mounting plate, a joint mounting plate, a motor mounting plate, a slider mounting plate and a connecting column; the joint mounting plate is spaced apart and arranged just above the spindle mounting plate, and the motor mounting plate is located on one side above the spindle mounting plate; the two ends of the connecting column are fixedly connected to the spindle mounting plate and the motor mounting plate respectively; the slider mounting plate is located on the other side above the spindle mounting plate, and the upper and lower ends of the slider mounting plate are fixedly connected to the joint mounting plate and the spindle mounting plate respectively; the bearing seat passes through the spindle mounting plate, and the bearing seat is fixed to the The main shaft mounting plates are fixedly connected, the floating joint is mounted on the joint mounting plate, and the slider mounting plate is fixedly connected to the fixed mounting frame; the main shaft mounting plate, the motor mounting plate and the connecting column together form a transmission component mounting space; the driving toothed belt pulley, the driven toothed belt pulley, the toothed conveyor belt and the upper part of the bearing seat are all located in the transmission component mounting space, the upper part of the rotating motor is mounted on the upper part of the motor mounting plate, and the lower part of the rotating motor passes through the motor mounting plate and extends into the transmission component mounting space and is connected to the driving toothed belt pulley.

6. The coil end thread tightening device for the hollow cup motor coil automatic production line according to claim 5, characterized in that: The height of the joint mounting plate is higher than that of the motor mounting plate.

7. The coil end thread tightening device for the hollow cup motor coil automatic production line according to claim 6, characterized in that: The fixed mounting frame includes: a cylinder mounting plate arranged above the joint mounting plate, a guide rail mounting plate located at the lower part of the slider mounting plate away from the motor mounting plate; the cylinder mounting plate and the guide rail mounting plate together form a right-angle plate shape; the cylinder body is mounted on the upper part of the cylinder mounting plate, and the cylinder rod passes through the cylinder mounting plate; a guide rail slider assembly is provided between the slider mounting plate and the guide rail mounting plate, and the slider mounting plate is fixedly connected to the fixed mounting frame via the guide rail slider assembly, and the guide rail slider assembly includes: a guide rail body fixedly connected to the guide rail mounting plate, a slider body fixedly connected to the slider mounting plate, and the guide rail body and the slider body are slidably connected.

8. The coil end thread tightening device for the hollow cup motor coil automatic production line according to claim 7, characterized in that: The bearing seat includes a ring-shaped seat body, a raised seat flange is provided on the outer side of the seat body, the lower part of the seat body extends into the spindle mounting plate, and the seat flange is fixedly connected to the spindle mounting plate.

9. The coil end thread tightening device for the coreless motor coil automatic production line according to claim 8, characterized in that: The telescopic drive is an oil cylinder or an air cylinder.

10. The coil end twisting device for the coreless motor coil automatic production line according to any one of claims 1 to 9, characterized in that: The two clamping fingers are respectively the first clamping finger and the second clamping finger, the first clamping finger is connected to the first thread twisting hook needle, the second clamping finger is connected to the second thread twisting hook needle, the first thread twisting hook needle is provided with a wire pressing wire protruding toward the second thread twisting hook needle at one end away from the first clamping finger, the second thread twisting hook needle is provided with a pressure head protruding toward the first thread twisting hook needle at one end away from the second clamping finger, and the pressure head is provided with a concave wire pressing groove at a position opposite to the wire pressing wire.

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