Stator winding tool

Abstract

The utility model discloses a stator winding tool, belongs to the technical field of stator inner wall winding, and aims to increase winding stations and improve stator winding efficiency. Comprising a servo motor, a synchronous transmission system, a workpiece station and a workbench panel, the workpiece station comprises a tool body, a pressing plate and a tool positioning body. A wire fixing column is installed on the top face of the tool body. The middle of the pressing plate is hinged to the outer wall of the tool body, the top end is bent inwards in the radial direction of an inner cavity of the tool body, and the bottom end extends through the telescopic spring to drive the top end of the pressing plate to clamp a workpiece. The tool body is installed on the tool positioning body, and the tool positioning body is rotationally installed in the bearing chamber. The two pairs of workpiece positions are installed in inner holes of the workbench panel through bearing chambers respectively. The servo motor is in transmission connection with the tool positioning body through the synchronous transmission system and drives the tool positioning body to rotate. The servo motor drives the two workpiece positions to work simultaneously, the number of the stations is increased, the two workpiece positions work synchronously, the winding efficiency is improved, the tool structure is more compact, the whole machine body is small, and the occupied area is reduced.

Description

Technical Field

[0001] The utility model belongs to the technology of winding on the inner wall of a stator, in particular to a stator winding tool. Background Art

[0002] Traditional stator winding generally uses winding tools for manual winding; winding is achieved by workers manually turning the turntable, which is time-consuming, has low winding regularity and is prone to human errors. Therefore, mechanical winding has gradually become a new choice for factories.

[0003] The current mechanical winding usually includes a turntable and a base supported on the turntable. The stator is positioned on the base through a positioning seat. A drive motor drives a turntable to rotate, thereby driving the base to rotate, and then realizing the rotation of the stator, and cooperates with the winding machine to perform winding inside the stator. This mechanical winding is driven by a drive motor to drive a turntable with a stator base installed to rotate, and the rotation is transmitted to the turntable after being decelerated by a reducer, driving the stator to rotate to complete the winding. This method is not only convenient and fast to change, but also can effectively reduce the labor intensity of employees after the equipment is debugged. However, since one workstation can only complete the winding of one workpiece at a time, this method is more efficient than manual winding, but it is increasingly unable to meet the current production needs of factories. Utility Model Content

[0004] The utility model aims to provide a stator winding work, increase winding stations and improve stator winding efficiency.

[0005] The technical solution adopted by the utility model is: a stator winding tooling, including a servo motor, a synchronous transmission system, a workpiece position and a worktable panel;

[0006] The workpiece position comprises a tool body, a pressure plate and a tool positioning body; the tool body is a cylindrical structure with a hollow cavity for placing the workpiece, and a wire fixing column is installed on the top surface of the tool body; the middle part of the pressure plate is hinged to the outer wall of the tool body, and the top end is bent radially inward along the inner cavity of the tool body, and a telescopic spring is arranged between the bottom end and the outer wall of the tool body, and the top end of the pressure plate is driven to clamp the workpiece through the extension of the telescopic spring; the bottom end of the tool body is installed on the top end of the tool positioning body, and the tool positioning body is rotatably installed in the bearing chamber through the bearing, and the bearing chamber is installed on the worktable panel;

[0007] The two workpiece positions are respectively installed in the inner holes of the workbench panel through their bearing chambers;

[0008] The servo motor is respectively connected to the tooling positioning bodies of the two workpiece positions through the synchronous transmission system to drive the tooling positioning bodies to rotate.

[0009] Furthermore, the synchronous transmission system includes a reducer lower spindle, a main synchronous pulley and an auxiliary synchronous pulley; the auxiliary synchronous pulley is installed on a tooling positioning body; the top end of the lower spindle is rotated around its axis and installed on the worktable panel, the main synchronous pulley is installed on the lower spindle, and the main synchronous pulley and the auxiliary synchronous pulley are connected through a transmission belt; the servo motor is connected to the lower spindle through the reducer.

[0010] Furthermore, a sensor mounting bracket is fixed on the top surface of the workbench panel, and an inductive proximity switch is installed on the sensor mounting bracket; the inductive proximity switch detects the rotation angle of the tooling body and transmits the rotation angle information to the controller, which feeds back to the servo motor, and the servo motor adjusts the output angle according to the feedback.

[0011] Furthermore, the tool body is a hollow cylindrical structure, and a flange is provided at its bottom end. The flange and the top flange of the tool positioning body are installed as a whole through positioning pin 2.

[0012] Furthermore, the tooling body is a hollow cylindrical structure, with a group of protrusions distributed on the outer periphery of the top, a slot formed between two protrusions in each group, and a spring mounting seat provided at the bottom of the tooling body, the spring mounting seat is located vertically directly below the slot, the pressure plate is arranged in the slot, and the two sides are hinged between the two protrusions through pin shaft 2; the telescopic spring is installed in the spring mounting seat.

[0013] Furthermore, the tool positioning body is a hollow stepped cylindrical structure, and includes a top section and a bottom section along its axial direction;

[0014] The auxiliary synchronous belt wheel is installed on the bottom section through the flat key 2, and the auxiliary synchronous belt wheel is axially limited through the radial tightening ring 1 installed on the bottom section and the shaft shoulder between the top section and the bottom section;

[0015] The top section is mounted in the bearing chamber via a bearing.

[0016] Furthermore, the workpiece position also includes a material return rod, which is movably arranged in the inner cavity of the tool positioning body along the vertical direction, and the top of the material return rod can extend into the inner cavity of the tool body.

[0017] Furthermore, the material ejector rod comprises a U-shaped lifting head at the top and a rod portion at the bottom, and the bottom of the rod portion is provided with a long pin hole penetrating in the radial direction and extending in the axial direction;

[0018] A push rod is arranged at the bottom end of the material-removing rod; a push rod sliding sleeve is arranged between the material-removing rod and the push rod.

[0019] The top end of the push rod sliding sleeve is provided with a round pin hole penetrating in the radial direction, and the bottom end is provided with a flange;

[0020] The bottom end of the material ejection rod is inserted into the push rod sliding sleeve, and the pin shaft is inserted into the round pin hole and the long pin hole to connect the material ejection rod and the push rod sliding sleeve together;

[0021] A supporting plate is suspended via the supporting column, and the flange of the push rod sliding sleeve is connected to the supporting plate.

[0022] The beneficial effects of the utility model are as follows: the stator winding tool disclosed by the utility model adopts a servo motor to drive two workpiece positions to rotate circumferentially through a synchronous transmission system to realize stator winding, the degree of automation is improved, and the problem of low efficiency of traditional manual winding is solved. Moreover, one servo motor drives two workpiece positions to work at the same time, the number of workstations is increased, and the two workpiece positions work synchronously, the winding efficiency is further improved, and the tooling structure is more compact, the overall body is smaller, and the floor space is reduced. The use of a telescopic spring in conjunction with a pressure plate to clamp the workpiece is convenient for positioning the workpiece, and it is also convenient to take and place the workpiece, adapt to quick-change products, ensure stator performance, and do not damage the enameled wire.

[0023] Inductive proximity switches are used for sensor detection, and servo motors are used to form closed-loop control to achieve high-precision output, detect and feedback the angle of the workpiece position, and achieve stable winding volume on the inner wall of the stator to meet the requirements of regular winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the utility model;

[0025] Figure 2 It is a schematic diagram of the structure of the tooling body;

[0026] Figure 3 Positioning body sections for work;

[0027] Figure 4 It is a schematic diagram of the structure of the material withdrawal rod;

[0028] Figure 5 It is a cross-sectional view of the push rod sleeve.

[0029] In the figure, workbench panel 1, bearing chamber 2, bearing cover plate 3, support ring 4, tool positioning body 5, top section 5A, bottom section 5B, top flange 5C, gasket 6, material removal rod 7, jacking head 7A, rod 7B, long pin hole 7C, pin shaft 8, push rod sliding sleeve 9, round pin hole 9B, support column 10, support plate 11, C-axis motor mounting seat 12, motor seat connecting plate 13, C-axis bearing support 14, bearing cover 15, bearing washer 16, lower spindle 17, main synchronous pulley 18, reducer 19, servo motor 20, inductive proximity switch 21, telescopic spring 22, auxiliary Synchronous pulley 23, synchronous belt 24, radial retaining ring 25, bearing support plate 26, flat key 27, auxiliary mounting block 28, locating pin 29, tooling body 30, flange 30A, convex block 30B, slot 30C, spring mounting seat 30D, sliding rod 32, product locating ring 33, fixed wire column 35, pin shaft 2 36, pressure plate 37, locating pin 2 38, sensor mounting bracket 39, flat key 2 40, radial retaining ring 2 41, coupling 42, nut 43, radial retaining ring 2 44, deep groove ball bearing 45, deep groove ball bearing 1 46, deep groove ball bearing 2 47. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0031] Stator winding tooling, such as Figure 1 As shown, it includes a servo motor 20, a synchronous transmission system, a workpiece position and a workbench panel 1;

[0032] The workpiece position includes a tool body 30, a pressure plate 37 and a tool positioning body 5; the tool body 30 is a cylindrical structure with a hollow cavity for placing the workpiece, and a fixed line column 35 is installed on the top surface of the tool body 30; the middle part of the pressure plate 37 is hinged to the outer wall of the tool body 30, and the top end is bent radially inward along the inner cavity of the tool body 30. A telescopic spring 22 is arranged between the bottom end and the outer wall of the tool body 30, and the telescopic spring 22 is extended to drive the top end of the pressure plate 37 to clamp the workpiece; the bottom end of the tool body 30 is installed on the top of the tool positioning body 5, and the tool positioning body 5 is rotatably installed in the bearing chamber 2 through the bearing, and the bearing chamber 2 is installed on the workbench panel 1;

[0033] The two workpiece positions are respectively installed in the inner holes of the workbench panel 1 through their bearing chambers 2;

[0034] The servo motor 20 is respectively connected to the tooling positioning bodies 5 of the two workpiece positions through the synchronous transmission system, so as to drive the tooling positioning bodies 5 to rotate.

[0035] The stator winding tool disclosed in the utility model adopts a servo motor 20 to drive two workpiece positions to rotate circumferentially through a synchronous transmission system to realize stator winding, which solves the problem of low efficiency of traditional manual winding. One servo motor 20 drives two workpiece positions to work at the same time, and the two workpiece positions work synchronously, so the winding efficiency is further improved, and the tool structure is more compact. The telescopic spring is used to cooperate with the pressure plate 37 to clamp the workpiece, which is convenient for taking and placing the workpiece.

[0036] This tooling can adopt chain drive or gear transmission. In order to reduce noise and improve transmission stability, the synchronous transmission system further includes a reducer 19, a lower spindle 17, a main synchronous pulley 18 and an auxiliary synchronous pulley 23; the auxiliary synchronous pulley 23 is installed on the tooling positioning body 5; the top end of the lower spindle 17 rotates around its axis and is installed on the workbench panel 1, the main synchronous pulley 18 is installed on the lower spindle 17, and the main synchronous pulley 18 and the auxiliary synchronous pulley 23 are connected through a transmission belt; the servo motor 20 is connected to the lower spindle 17 through the reducer 19.

[0037] In order to ensure that there are no errors in the winding and to improve the regularity of the winding, a sensor mounting bracket 39 is further fixed on the top surface of the workbench panel 1, and an inductive proximity switch 21 is installed on the sensor mounting bracket 39; the inductive proximity switch 21 detects the rotation angle of the tooling body 30, and transmits the rotation angle information to the controller, which feeds back to the servo motor 20, and the servo motor 20 adjusts the output angle according to the feedback.

[0038] This tooling adopts an inductive proximity switch 21 for sensor detection, cooperates with a servo motor to form a closed-loop control, realizes high-precision output, detects and feeds back the angle of the workpiece position, realizes the stability of the wire volume of the stator inner wall winding, and meets the requirements of regular winding.

[0039] In order to facilitate the assembly of the tooling body 30 and the tooling positioning body 5, preferably, the tooling body 30 is a hollow cylindrical structure, and a flange 30A is provided at its bottom end. The flange 30A and the top flange 5C of the tooling positioning body 5 are installed as a whole through a positioning pin 2 38.

[0040] In order to facilitate the installation of springs, pressure plates and other components on the tooling body 30, preferably, as Figure 2 As shown, the tool body 30 is a hollow cylindrical structure, and a group of protrusions 30B are distributed on the outer periphery of the top, and a slot 30C is formed between two protrusions 30B in each group. A spring mounting seat 30D is provided at the bottom of the tool body 30, and the spring mounting seat 30D is located vertically directly below the slot 30C. The pressure plate 37 is arranged in the slot 30C, and the two sides are hinged between the two protrusions 30B through the second pin 36; the telescopic spring 22 is installed in the spring mounting seat 30D.

[0041] In order to facilitate the installation of bearings and other components on the tooling positioning body 5, Figure 3 As shown, the tool positioning body 5 is a hollow stepped cylindrical structure, which includes a top section 5A and a bottom section 5B along its axial direction; the auxiliary synchronous belt pulley 23 is installed on the bottom section 5B through a flat key 240, and the auxiliary synchronous belt pulley 23 is axially limited by a radial clamping ring 25 installed on the bottom section 5B and a shoulder between the top section 5A and the bottom section 5B; the top section 5A is installed in the bearing chamber 2 through a bearing.

[0042] In order to remove the workpiece from the tool body 30 without disassembling the tool body 30, and further improve the efficiency, preferably, as Figure 4 As shown, the workpiece position further includes a material ejection rod 7 , which is movably disposed in the inner cavity of the tool positioning body 5 along the vertical direction, and the top of the material ejection rod 7 can extend into the inner cavity of the tool body 30 .

[0043] The material stripping rod 7 includes a U-shaped lifting head 7A at the top and a rod portion 7B at the bottom. The bottom of the rod portion 7B is provided with a long pin hole 7C which penetrates radially and extends axially. The U-shaped lifting head 7A can increase the contact area between the material stripping rod 7 and the workpiece.

[0044] A push rod is arranged at the bottom end of the material-returning rod 7; a push rod sliding sleeve 9 is arranged between the material-returning rod 7 and the push rod, and the push rod sliding sleeve 9 plays a guiding role to avoid deviation.

[0045] like Figure 5 As shown, the top end of the push rod sleeve 9 is provided with a round pin hole 9B which penetrates radially, and the bottom end is provided with a flange; the bottom end of the material return rod 7 is inserted into the push rod sleeve 9, and the pin shaft 8 is inserted into the round pin hole 9B and the long pin hole 7C to connect the material return rod 7 and the push rod sleeve 9 together; a support plate 11 is suspended through the support column 10, and the flange of the push rod sleeve 9 is connected to the support plate 11.

[0046] like Figure 1 As shown, during specific installation and use, the workbench panel 1 is used as the basic component; the fixing column 35 is installed on the upper surface of the tool body 30; the pressing plate 37 is fixed to the tool body 30 through the second pin 36, and the workpiece is clamped with the telescopic spring 22; the left and right sides of the tool body 30 are equipped with sliding rods 32; then the tool body 30 is installed as a whole with the tool positioning body 5 through the second positioning pin 38;

[0047] A bearing cover plate 3 is placed above the bearing chamber 2; the bearing cover plate 3, the bearing chamber 2 and the worktable panel 1 are fastened by hexagon socket head screws BO; then, under the action of the deep groove ball bearing 45 and the support ring 4, the components installed on the tooling positioning body 5 are installed in the bearing chamber 2 together with the tooling positioning body 5, and are integrated with the base worktable panel 1;

[0048] The auxiliary synchronous pulley 23 is limited in circumferential rotation by the flat key 2 40 , and the radial clamping ring 1 25 and the radial clamping ring 2 44 are limited in axial movement; refer to the above steps to install another workpiece on the workbench panel 1 .

[0049] The main synchronous pulley 18 is installed on the lower spindle 17, and the flat key 27 allows the main synchronous pulley 18 to rotate in the circumferential direction with the lower spindle 17; the lower spindle 17 is assembled into one with the bearing support plate 26 through the deep groove ball bearing 47; the synchronous belt 24 and the synchronous belt B28 are sleeved on the corresponding synchronous pulleys; the bearing cover 15 is first inserted into the lower spindle 17, and under the action of the bearing washer 16 and the radial retaining ring 41, the deep groove ball bearing 46 is fixed on the lower spindle 17, and then the bearing cover 15 and the C-axis bearing support 14 are fastened together through the hexagon socket cylindrical head screw; the components assembled on the bearing support plate 26 are installed on the workbench panel 1 together with the bearing support plate 26 with the cooperation of the auxiliary mounting block 28 and the positioning pin 29; then the motor seat connecting plate 13 and the C-axis motor mounting seat 12 are installed, the coupling 42 is placed, and the reducer 19 and the servo motor 20 are installed in turn, that is, the assembly of the power spindle part is completed.

[0050] The material return rod 7 is placed into the inner hole of the workpiece position that has been previously installed on the workbench panel 1, and then the product positioning ring 33 is placed; with the cooperation of the open retaining ring and the pin shaft 8, the material return rod 7 and the push rod sleeve 9 are assembled; the support column 10 is pre-matched with the support plate 11, and the support plate 11 is assembled on the push rod sleeve 9 by means of hexagon socket cylindrical head screws, and the support column 10 is then tightened and fixed by means of nuts 43; finally, the motor for controlling the material return rod 7 is installed; the sensor mounting frame 39 is fastened to the workbench panel 1 by means of hexagon socket cylindrical head screws, and the inductive proximity switch 21 is installed on the sensor mounting frame 39; refer to the above steps to complete the remaining installation of another workpiece position; all assembly is completed at this point.

[0051] After installing this set of practical tooling on the corresponding equipment through the basic workbench panel 1, add corresponding and necessary auxiliary equipment; wind the thread end around one of its fixed wire columns 35; apply horizontal force to the spring to keep the pressure plate 37 in an open state and put in the workpiece; then remove the horizontal force applied to the spring, the offline machine starts winding, and the servo motor 20 starts working at the same time, driving the lower spindle 17 to rotate through the reducer 19 and the coupling 42, and the lower spindle 17 drives the two synchronous pulleys to rotate B8, and then drives the workstation to rotate forward and reverse by a certain angle through the synchronous belt; the sensor detects whether the workstation is turned to the set position, and transmits the result to the controller for feedback action to achieve high-precision output; after the two groups of winding are completed and the winding is cut, the auxiliary device applies horizontal force to the spring to keep the pressure plate 37 in an open state; driven by the motor, the ejector rod 7 moves upward to push out the workpiece; the stator winding is completed in this way.

[0052] The use of this stator winding technology can not only ensure the regular winding of the stator inner wall and the stable winding amount, ensure the accurate rotation angle of the workpiece, but also conveniently increase the workpiece position; it has high flexibility, can effectively reduce the labor intensity of workers and improve the production efficiency of the factory.

Claims

1. Stator winding tooling, characterized by: It includes a servo motor (20), a synchronous transmission system, a workpiece position and a worktable panel (1); The workpiece position comprises a tool body (30), a pressure plate (37) and a tool positioning body (5); the tool body (30) is a cylindrical structure with a hollow cavity for accommodating the workpiece, and a fixed line column (35) is installed on the top surface of the tool body (30); the middle part of the pressure plate (37) is hinged to the outer wall of the tool body (30), and the top end is bent radially inward along the inner cavity of the tool body (30), and a telescopic spring (22) is arranged between the bottom end and the outer wall of the tool body (30), and the telescopic spring (22) is extended to drive the top end of the pressure plate (37) to clamp the workpiece; the bottom end of the tool body (30) is installed on the top end of the tool positioning body (5), and the tool positioning body (5) is rotatably installed in the bearing chamber (2) through a bearing, and the bearing chamber (2) is installed on the workbench panel (1); The two pairs of workpiece positions are respectively installed in the inner holes of the workbench panel (1) through their bearing chambers (2); The servo motor (20) is respectively connected to the tooling positioning bodies (5) of the two workpiece positions through the synchronous transmission system, thereby driving the tooling positioning bodies (5) to rotate.

2. The stator winding tool according to claim 1, characterized in that: The synchronous transmission system comprises a reducer (19), a lower spindle (17), a main synchronous pulley (18) and an auxiliary synchronous pulley (23); the auxiliary synchronous pulley (23) is mounted on a tooling positioning body (5); the top end of the lower spindle (17) is mounted on a workbench so as to rotate around its axis, the main synchronous pulley (18) is mounted on the lower spindle (17), and the main synchronous pulley (18) and the auxiliary synchronous pulley (23) are connected via a transmission belt; the servo motor (20) is connected to the lower spindle (17) via the reducer (19).

3. The stator winding tool according to claim 1 or 2, characterized in that: A sensor mounting frame (39) is fixed on the top surface of the workbench panel (1), and an inductive proximity switch (21) is mounted on the sensor mounting frame (39); the inductive proximity switch (21) detects the rotation angle of the tooling body (30), and transmits the rotation angle information to a controller, which then feeds back to a servo motor (20), and the servo motor (20) adjusts the output angle according to the feedback.

4. The stator winding tool according to claim 1 or 2, characterized in that: The tool body (30) is a hollow cylindrical structure, and a flange (30A) is arranged at its bottom end. The flange (30A) and the top flange (5C) of the tool positioning body (5) are installed as a whole through a second positioning pin (38).

5. The stator winding tool according to claim 1 or 2, characterized in that: The tool body (30) is a hollow cylindrical structure, with a group of protrusions (30B) distributed on the outer periphery of the top, and a slot (30C) is formed between two protrusions (30B) in each group. A spring mounting seat (30D) is arranged at the bottom of the tool body (30), and the spring mounting seat (30D) is located directly below the slot (30C) in the vertical direction. The pressure plate (37) is arranged in the slot (30C), and the two sides are hinged between the two protrusions (30B) through the second pin (36); the telescopic spring (22) is installed in the spring mounting seat (30D).

6. The stator winding tool as claimed in claim 2, characterized in that: The tool positioning body (5) is a hollow stepped cylindrical structure, and comprises a top section (5A) and a bottom section (5B) along its axial direction; The auxiliary synchronous belt wheel (23) is installed on the bottom section (5B) through the flat key 2 (40), and the auxiliary synchronous belt wheel (23) is axially limited through the radial tightening ring 1 (25) installed on the bottom section (5B) and the shaft shoulder between the top section (5A) and the bottom section (5B); The top section (5A) is installed in the bearing chamber (2) via a bearing.

7. The stator winding tool according to claim 1 or 2, characterized in that: The workpiece position also includes a material return rod (7), which is movably arranged in the inner cavity of the tool positioning body (5) along the vertical direction, and the top of the material return rod (7) can extend into the inner cavity of the tool body (30).

8. The stator winding tool as claimed in claim 7, characterized in that: The material removal rod (7) comprises a U-shaped lifting head (7A) at the top and a rod portion (7B) at the bottom, and the bottom of the rod portion (7B) is provided with a long pin hole (7C) penetrating in the radial direction and extending in the axial direction; A push rod is arranged at the bottom end of the material-removing rod (7); a push rod sliding sleeve (9) is arranged between the material-removing rod (7) and the push rod. The top end of the push rod sliding sleeve (9) is provided with a round pin hole (9B) penetrating in the radial direction, and the bottom end is provided with a flange; The bottom end of the material-removing rod (7) is inserted into the push rod sliding sleeve (9), and the pin shaft (8) is inserted into the round pin hole (9B) and the long pin hole (7C) to connect the material-removing rod (7) and the push rod sliding sleeve (9) together; A support plate (11) is suspended via a support column (10), and a flange of the push rod sliding sleeve (9) is connected to the support plate (11).

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