A press-in tin dipping production line for assembling motor stator

Abstract

The application discloses a kind of assembly motor stator press-packaging tin dipping production line, including workbench, stator conveying device, assembly transfer device and be set along the overturning device of assembly transfer device's transfer path, press-packaging device, dip flux device, adjustable tin dipping device, the overturning end of overturning device is provided with stator turntable station, assembly transfer device's transfer end takes and places stator body, press-packaging device is press-packaged on stator body with circuit board, overturning device drives stator turntable station to rotate to overturn stator body with press-packaged circuit board, overturning device is provided with the overturning displacement mechanism of driving it translation, to be dipped part is sequentially stopped in dip flux device and adjustable tin dipping device with stator body downwards.The application of a kind of assembly motor stator press-packaging tin dipping production line improves production efficiency, enhances the reliability of electrical connection between stator body and circuit board, ensures the consistency of product manufactured by the production line.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor manufacturing, in particular to a kind of press fitting tin production line of assembling motor stator. BACKGROUND

[0002] Currently, in the motor manufacturing process, motor stator as important component element, its manufacturing requirement is higher and higher, motor stator usually needs to install circuit board on stator body, pin terminal is provided on circuit board, PIN needle on stator body is inserted with circuit board, and these circuit boards usually need to be fixed on stator body by press fitting, then, in order to enhance the reliability of electrical connection, stator body is often turned over, PIN needle part connected between stator body and circuit board is sequentially carried out with fluxing agent, tin dipping treatment, to realize reliable electrical connection, wherein, press fitting of circuit board and stator body, turning over stator body and PIN needle part with fluxing agent, tin dipping treatment and other processes are mostly carried out by manual operation, and this manual operation mode is inefficient, and prone to quality problems. SUMMARY

[0003] The present application relates to the technical field of motor manufacturing, in particular to a kind of press fitting tin production line of assembling motor stator.

[0004] In order to solve the above technical problems, the technical scheme of the present application is as follows: a kind of press fitting tin production line of assembling motor stator, including workbench, stator conveying device, assembly transfer device and along the transfer path of the assembly transfer device The setting of turnover device, press fitting device, fluxing agent dipping device, adjustable tin dipping device, the turnover end of the turnover device is provided with stator turntable station, the transfer end of the assembly transfer device reciprocates between the stator conveying device and the turnover device to take and place stator body, the press fitting device is press fitted on stator body Circuit board, PIN needle connected with circuit board on stator body is to be dipped part, the turnover device drives the stator turntable station to rotate, to turn over the stator body with circuit board and make the dipped part of stator body downward, the turnover device is provided with turnover displacement mechanism for driving the turnover device translation, to make the stator body with downward dipped part sequentially stop at the fluxing agent dipping device and the adjustable tin dipping device;The fluxing agent dipping device is used to dip fluxing agent on the dipped part of stator body, and the adjustable tin dipping device is used to dip tin on the dipped part of stator body.

[0005] Preferably, the adjustable tin dipping device comprises a tin dipping table, a tin furnace, a tin dipping box, a tin dipping displacement assembly and a scraper body, the tin furnace and the tin dipping displacement assembly are arranged on the tin dipping table, the tin dipping box is slidingly arranged in the opening of the tin furnace, the tin dipping displacement assembly adjusts the position of the scraper body in the horizontal and vertical directions, and the tin dipping box is driven by the scraper body of the tin dipping displacement assembly to move in translation relative to the opening of the tin furnace.

[0006] The tin dipping displacement assembly comprises a scraper translation mechanism and a scraper lifting mechanism, the tin dipping table is provided with a displacement mounting bracket for fixed connection of the scraper translation mechanism, the scraper lifting mechanism is arranged on the translation end of the scraper translation mechanism, and the scraper body is arranged on the lifting end of the scraper lifting mechanism.

[0007] Preferably, the two side portions of the tin dipping box are provided with lifting mounting brackets, the portions of the lifting mounting brackets extending to the outside of the tin dipping box are provided with first tin dipping lifting mechanisms, the outer side walls of the first tin dipping lifting mechanisms are provided with tin dipping support plates, and the tin dipping support plates abut and slide with the tin dipping table.

[0008] Preferably, the workbench is slidingly connected with the tin dipping table, and the workbench is provided with a second tin dipping lifting mechanism for driving the tin dipping table to lift.

[0009] Preferably, the flux dipping device comprises a flux dipping lifting mechanism and an upwardly open flux dipping box, the flux dipping lifting mechanism drives the flux dipping box to lift, a flux collecting container for collecting flux is arranged on the workbench relative to the position of the flux dipping box, and the flux collecting container is upwardly open to be dipped by the flux dipping box.

[0010] Preferably, the press fitting device comprises a press fitting mounting bracket, a press fitting lifting mechanism, a press fitting mounting plate and a press fitting head, the press fitting mounting bracket is fixedly connected to the workbench, the press fitting lifting mechanism is arranged on the top of the press fitting mounting bracket, the press fitting mounting plate is slidingly connected to the press fitting mounting bracket, the press fitting mounting plate is located above the stator turntable station, the lifting end of the press fitting lifting mechanism is fixedly connected to the top surface of the press fitting mounting plate, the press fitting head is fixedly connected to the bottom surface of the press fitting mounting plate, the turnover displacement mechanism drives the turnover device to move in translation to move the stator turntable station to below the press fitting head, and the press fitting head is pressed downward to press fit the circuit board on the stator body.

[0011] Preferably, the stator turntable station comprises a turntable mounting frame, a turnover clamp and a clamp rotating mechanism arranged on the turntable mounting frame, the turntable mounting frame is fixedly connected to the turnover end of the turnover device, the turnover clamp is rotatably connected to the turntable mounting frame, the turnover clamp is used for clamping the stator body, and the clamp rotating mechanism drives the turnover clamp to rotate.

[0012] Preferably, the transfer end of the assembly transfer device is provided with a position detection device, and a detection end of the position detection device is located above the stator turntable station to detect whether the position of the circuit board of the stator body is in place.

[0013] Preferably, the stator transfer device, the pin transfer device, the pre-assembly transfer device, and the PCB transfer device are further included.

[0014] The workbench is provided with a stator feeding position beside the stator transfer device, and a transfer end of the stator transfer device reciprocally moves between the stator feeding position and the stator conveying device to feed the stator body to the stator conveying station of the stator conveying device.

[0015] The workbench is provided with a PCB feeding device, a PCB turnover clamping device and a PCB detection device arranged above and below along a transfer path of the pre-assembly transfer device, and a transfer end of the pre-assembly transfer device reciprocally moves between the PCB feeding device, the PCB turnover clamping device, the PCB transfer device and the stator conveying device to take and place the circuit board.

[0016] The pre-assembly transfer device transfers the circuit board from the PCB feeding device to the PCB turnover clamping device, so that the PCB detection device detects the front and back surface conditions of the circuit board, the PCB turnover clamping device clamps the circuit board and turns over the circuit board according to the front and back surface conditions of the circuit board, and the pre-assembly transfer device transfers the circuit board in a correct position to the PCB transfer device.

[0017] The PCB transfer device transfers the circuit board in a correct position along a transfer path of the PCB transfer device to the pin transfer device or the pre-assembly transfer device, the workbench is provided with a pin feeding position along a transfer path of the pin transfer device, and a transfer end of the pin transfer device reciprocally moves between the pin feeding position and the PCB transfer device to insert the pin terminal into the circuit board, and a lifting type welding device for welding the pin terminal into the circuit board is arranged on a side of the PCB transfer device close to the pin transfer device.

[0018] The stator conveying device stops the stator body to be assembled with the circuit board at the pre-assembly transfer device along the feeding path of the stator conveying device, and the PCB transfer device moves the circuit board welded with the pin terminal to the pre-assembly transfer device along the transfer path of the PCB transfer device, so that the pre-assembly transfer device places the circuit board welded with the pin terminal on the stator body to be assembled with the circuit board.

[0019] Preferably, the detection transfer device and the good product conveying device, the defective product conveying device and the detection placement table arranged along the transfer path of the detection transfer device are further included, the transfer end of the detection transfer device reciprocally moves between the good product conveying device, the defective product conveying device and the detection placement table to take and place the stator body after immersion tinning, and the transfer end of the detection transfer device is provided with an energization detection assembly for energization test of the stator body after immersion tinning.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1、The stator body assembled with the circuit board is moved from the stator conveying device to the stator turntable station of the turnover device by the assembly transfer device, so that the circuit board is press-fitted on the stator body by the press-fitting device, the stator body press-fitted with the circuit board is turned by the turnover device to make the PIN pin of the stator body downward and above the immersion flux device and the adjustable immersion tinning device, so as to be subjected to subsequent immersion flux and immersion tinning treatment, the PIN pin connected with the circuit board on the stator body is the to-be-immersed part, the turnover displacement mechanism can drive the turnover device to translate, so that the stator body on the stator turntable station is sequentially sent to the immersion flux device and the adjustable immersion tinning device, the to-be-immersed part on the stator body is immersed in flux by the immersion flux device, and the to-be-immersed part on the stator body is immersed in tinning by the adjustable immersion tinning device, the stator turntable station rotates the stator body to make the to-be-immersed part of the stator body rotate in the tinning liquid, so as to ensure uniform immersion tinning, the production line cooperates with each device to automatically complete the press-fitting, turnover, immersion flux and immersion tinning of the stator body and the circuit board, improves the production efficiency, enhances the reliability of electrical connection between the stator body and the circuit board, reduces quality problems caused by human factors, and ensures product consistency of the production line.

[0022] 2. The adjustable immersion tin device of the present application drives the scraper body to move through the immersion tin displacement assembly to scrape off the oxide and impurities on the surface of the tin liquid in the immersion tin box, and the immersion tin displacement assembly adjusts the position of the scraper body in the horizontal and vertical directions to make the scraper body abut against the inner wall or outer wall of the immersion tin box, thereby driving the immersion tin box to make a translational motion relative to the opening of the tin furnace, so as to finely adjust the position of the immersion tin box to make the opening of the immersion tin box correspond to the to-be-immersed part of the stator body. The adjustable immersion tin device of the production line can adjust the position of the immersion tin box according to different specifications of the stator body, and has high adaptability.

[0023] 3. In the process of immersing the to-be-immersed part of the stator body in tin, the translational movement of the immersion tin box can also be adopted, so that the to-be-immersed part of the stator body is fully contacted with the tin liquid, and the translational movement of the immersion tin box helps to remove the bubbles that may be generated in the immersion tin process, so that the tin liquid better fills the welding part between the stator body and the circuit board, reduces defects such as virtual welding and air holes, and improves the welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structure schematic of the production line in the embodiment Figure 1 .

[0025] Figure 2 is a structure schematic of the production line in the embodiment Figure 2 .

[0026] Figure 3 is a structure schematic of the stator conveying device, the stator displacement device, and the pin displacement device in the embodiment.

[0027] Figure 4 is a sectional view of the stator conveying device in the embodiment Figure 1 .

[0028] Figure 5 is a sectional view of the stator conveying device in the embodiment Figure 2 .

[0029] Figure 6 is a sectional view of the PCB transfer device, the PCB feeding device, and the stator conveying device in the embodiment.

[0030] Figure 7 is a structure schematic of the assembly displacement device, the overturning device, the pressing device, the immersion flux device, and the adjustable immersion tin device in the embodiment Figure 1 .

[0031] Figure 8 is a structure schematic of the assembly displacement device, the overturning device, the pressing device, the immersion flux device, and the adjustable immersion tin device in the embodiment Figure 2 .

[0032] Figure 9is a sectional view of the stator turntable station of the turnover device in the embodiment Figure 1 .

[0033] Figure 10 is a sectional view of the stator turntable station of the turnover device in the embodiment Figure 2 .

[0034] Figure 11 is a structural schematic diagram of the adjustable immersion tin device in the embodiment.

[0035] Figure 12 is a sectional view of the adjustable immersion tin device in the embodiment.

[0036] Figure 13 is a structural schematic diagram of the detection transfer device, the good product conveying device, the defective product conveying device and the detection placement table in the embodiment.

[0037] Figure 14 is a structural schematic diagram of the motor stator manufactured by the production line in the embodiment.

[0038] In the figure: 1, workbench; 101, position sensor; 102, stator loading position; 103, pin loading position; 2, stator conveying device; 203, stator conveying station; 3, assembly transfer device; 301, position detection device; 4, turnover device; 5, press-fitting device; 51, press-fitting mounting rack; 52, press-fitting lifting mechanism; 53, press-fitting mounting plate; 54, press-fitting head; 6, flux dipping device; 61, flux dipping lifting mechanism; 62, flux dipping box; 601, flux collecting container; 7, adjustable dipping tin device; 71, dipping tin table; 72, tin furnace; 73, dipping tin box; 74, dipping tin displacement assembly; 741, scraper translation mechanism; 742, scraper lifting mechanism; 75, scraper body; 701, displacement mounting rack; 702, lifting mounting rack; 703, first dipping tin lifting mechanism; 704, dipping tin support plate; 705, second dipping tin lifting mechanism; 8, stator turntable station; 81, turntable mounting rack; 82, turnover clamp; 83, clamp rotating mechanism; 9, turnover displacement mechanism; 10, stator transfer device; 11, pin transfer device; 12, pre-assembly transfer device; 13, PCB transfer device; 1301, PCB transfer station; 14, PCB loading device; 15, PCB turnover clamping device; 16, PCB detection device; 17, lifting type welding device; 18, detection transfer device; 19, good product conveying device; 20, defective product conveying device; 201, defective product discharge channel; 202, pushing mechanism; 21, detection placement table; 22, power-on detection assembly; 23, transverse carrying mechanism; 231, transfer stand; 232, transverse translation mechanism; 233, vertical translation mechanism; 234, grabbing carrying unit; 24, stator incoming material detection mechanism; 241, stator detection device; 242, lifting type pressing-down device; 243, switching translation mechanism; 25, stator body; 251, PIN pin; 26, circuit board; 261, pin terminal. DETAILED DESCRIPTION

[0039] The application will be further described below by way of examples in conjunction with the accompanying drawings.

[0040] REFERENCE Figure 1 , Figure 2 , Figure 3 , Figure 7 , Figure 13 , Figure 14 A press-fitting and dipping tin production line for assembling a motor stator includes a workbench 1, a stator conveying device 2 arranged on the workbench 1, and a stator transfer device 10, a pin transfer device 11, a pre-assembly transfer device 12, an assembly transfer device 3, and a detection transfer device 18 arranged in sequence along a conveying path of the stator conveying device 2.

[0041] The stator conveying device 2 is a belt conveyor, the conveying path of the stator conveying device 2 extends along the length direction of the stator conveying device 2, the working surface of the stator conveying device 2 is provided with a stator conveying station 203 for vertically placing the stator body 25, the workbench 1 is provided with a plurality of position sensors 101 along the conveying path of the stator conveying device 2, the position sensors 101 are used to sense the stator conveying station 203, and each position sensor 101 is respectively arranged on the side of the stator transfer device 10, the side of the pin transfer device 11, the side of the pre-assembly transfer device 12, the side of the assembly transfer device 3, and the side of the detection transfer device 18. The conveying path of the stator conveying device 2 extends along the length direction of the stator conveying device 2, the stator conveying device 2 feeds the stator conveying station 203 along the conveying path of the stator conveying device 2, so that the stator conveying station 203 is sequentially stopped at the stator transfer device 10, the pin transfer device 11, the pre-assembly transfer device 12, the assembly transfer device 3, and the detection transfer device 18.

[0042] The workbench 1 is provided with a stator feeding station 102 on the side of the stator transfer device 10, the transfer end of the stator transfer device 10 is a pneumatic clamp jaw for clamping the stator body 25, and the transfer end of the stator transfer device 10 reciprocates between the stator feeding station 102 and the stator conveying device 2 to feed the stator body 25 to the stator conveying station 203 of the stator conveying device 2.

[0043] Reference Figure 1 , Figure 3 , Figure 6 , Figure 7 , Figure 13 The stator transfer device 10, the pin transfer device 11, the pre-assembly transfer device 12, the assembly transfer device 3, and the detection transfer device 18 are all transverse transfer mechanisms 23, the transverse transfer mechanism 23 includes a transfer stand 231, a transverse translation mechanism 232 located at the top of the transfer stand 231, a vertical translation mechanism 233 arranged on the translation end of the transverse translation mechanism 232, and a grabbing transfer unit 234 arranged on the translation end of the vertical translation mechanism 233. The transverse translation mechanism 232 and the vertical translation mechanism 233 can be telescopic air cylinders or electric slides, and the grabbing transfer unit 234 can be pneumatic clamps or vacuum suction cups.

[0044] Reference Figures 1 to 7, the workbench 1 is provided with a PCB feeding device 14, an up-down arranged PCB turnover clamping device 15 and a PCB detection device 16 along a moving path of the pre-assembly moving device 12, the PCB feeding device 14 is a horizontal conveying mechanism 23, a circuit board 26 is stacked on the PCB feeding device 14, a moving end of the pre-assembly moving device 12 is a vacuum suction cup for sucking the circuit board 26, and the moving end of the pre-assembly moving device 12 reciprocally moves between the PCB feeding device 14, the PCB turnover clamping device 15, the PCB transfer device 13 and the stator conveying device 2 to take and place the circuit board 26.

[0045] The PCB detection device 16 is a detection camera, the pre-assembly moving device 12 transfers the circuit board 26 from the PCB feeding device 14 to the PCB turnover clamping device 15 for the PCB detection device 16 to detect front and back surfaces of the circuit board 26, the PCB turnover clamping device 15 comprises a turnover cylinder and a pneumatic clamping jaw driven by the turnover cylinder, the PCB turnover clamping device 15 clamps the circuit board 26 and turns over the circuit board 26 according to the front and back surfaces of the circuit board 26, so that the pre-assembly moving device 12 moves the circuit board 26 in a correct position to the PCB transfer device 13, the PCB transfer device 13 can be a telescopic cylinder or an electric sliding table, the PCB transfer device 13 is provided with a PCB transfer station 1301 for placing the circuit board 26, and the PCB transfer station 1301 can be a clamping device driven by the telescopic cylinder. The PCB transfer device 13 transfers the circuit board 26 in the correct position to the pin moving device 11 along a transfer path of the PCB transfer device 13, the workbench 1 is provided with a pin feeding station 103 along a moving path of the pin moving device 11, a moving end of the pin moving device 11 is a pneumatic clamping jaw for clamping a pin terminal 261, and the moving end of the pin moving device 11 reciprocally moves between the pin feeding station 103 and the PCB transfer device 13 to insert the pin terminal 261 on the circuit board 26 at the PCB transfer device 13. The PCB transfer device 13 is provided with a lifting type welding device 17 on a side close to the pin moving device 11, the lifting type welding device 17 drives a welding head to move up and down, so that the pin terminal 261 is welded on the circuit board 26.

[0046] The stator conveying device 2 conveys a stator body 25 to be assembled with the circuit board 26 along a feeding path of the stator conveying device 2 and stops at the pre-assembly moving device 12, the PCB transfer device 13 moves the circuit board 26 with the pin terminal 261 welded thereon to the pre-assembly moving device 12 along a transfer path of the PCB transfer device 13, and the pre-assembly moving device 12 pre-assembles the circuit board 26 with the pin terminal 261 welded thereon on the stator body 25.

[0047] Preferably, the workbench 1 is provided with a stator material detection mechanism 24 at the position relative to the pin transfer device 11, the stator material detection mechanism 24 comprises a stator detection device 241, a lifting type pressing device 242, and a switching translation mechanism 243 for driving the stator detection device 241 and the lifting type pressing device 242 to translate, when the stator body 25 is pre-assembled with the circuit board 26, the stator conveying device 2 transports the stator body 25 assembled with the circuit board 26 along the feeding path of the stator conveying device 2 and stops at the pin transfer device 11, the switching translation mechanism 243 moves the stator detection device 241 or the lifting type pressing device 242 above the stator body 25, the stator detection device 241 is a detection camera for visually detecting whether the bending degree of the PIN pin 251 on the stator body 25 is qualified, the lifting type pressing device 242 is a telescopic cylinder for pressing and bending the PIN pin 251 on the stator body 25 to correct, so as to complete the pre-assembly process of the stator body 25 and the circuit board 26, and the PIN pin 251 on the stator body 25 connected with the circuit board 26 is the part to be immersed.

[0048] Reference Figures 7 to 10 The stator conveying device 2 transports the stator body 25 assembled with the circuit board 26 along the feeding path of the stator conveying device 2 and stops at the assembly transfer device 3. The assembly transfer device 3 has a transfer path extending along the length direction of the assembly transfer device 3, and is provided with a turnover device 4, a pressing device 5, a flux immersion device 6, and an adjustable tin immersion device 7 along the transfer path of the assembly transfer device 3. The turnover device 4 is a turnover cylinder or a rotary motor, and has a turnover end provided with a stator turntable station 8. The transfer end of the assembly transfer device 3 is a pneumatic gripper for clamping the stator body 25. The transfer end of the assembly transfer device 3 reciprocates between the stator conveying device 2 and the turnover device 4 to take and place the stator body 25, so as to transfer the stator body 25 assembled with the circuit board 26 from the stator conveying station 203 to the stator turntable station 8. The stator turntable station 8 comprises a turntable mounting frame 81, and a turnover clamp 82 and a clamp rotating mechanism 83 arranged on the turntable mounting frame 81. The turntable mounting frame 81 is fixedly connected to the turnover end of the turnover device 4. The turnover clamp 82 is rotatably connected to the turntable mounting frame 81 and is used for clamping the stator body 25. The clamp rotating mechanism 83 is a rotary motor, and has a rotating end connected to the turnover clamp 82 through a synchronous belt transmission. The clamp rotating mechanism 83 is used for driving the turnover clamp 82 to rotate, so as to rotate the stator body 25 clamped by the turnover clamp 82 around the circumferential direction of the stator body 25.

[0049] Preferably, the transfer end of the assembly transfer device 3 is provided with a position detection device 301, which is a detection camera and is located above the stator turntable station 8 for detecting whether the position of the circuit board 26 of the stator body 25 is in place.

[0050] The stator turntable station 8 is horizontally upward for vertical placement of the stator body 25 under the driving of the turnover device 4. The press-fitting device 5 includes a press-fitting mounting frame 51, a press-fitting lifting mechanism 52, a press-fitting mounting plate 53 and a press-fitting head 54. The press-fitting mounting frame 51 is fixedly connected to the workbench 1. The press-fitting lifting mechanism 52 is arranged on the top of the press-fitting mounting frame 51. The press-fitting mounting plate 53 is slidably connected to the press-fitting mounting frame 51 and slides along the height direction of the press-fitting mounting frame 51. The press-fitting mounting plate 53 is located above the stator turntable station 8. The lifting end of the press-fitting lifting mechanism 52 is fixedly connected to the top surface of the press-fitting mounting plate 53. The press-fitting head 54 is fixedly connected to the bottom surface of the press-fitting mounting plate 53. The turnover device 4 is provided with a turnover displacement mechanism 9 for driving the turnover device 4 to translate laterally. The turnover displacement mechanism 9 is an electric sliding table. The turnover displacement mechanism 9 drives the turnover device 4 to translate so as to move the stator turntable station 8 to below the press-fitting head 54. The press-fitting device 5 drives the press-fitting head 54 to press downward to press-fit the circuit board 26 on the stator body 25, thereby ensuring the reliable connection between the circuit board 26 and the stator body 25.

[0051] The turnover device 4 drives the stator turntable station 8 to rotate to turn over the stator body 25 with the press-fitted circuit board 26, so that the to-be-immersed part of the stator body 25 faces downward. The turnover displacement mechanism 9 sequentially stops the stator body 25 with the to-be-immersed part facing downward at the fluxing device 6 and the adjustable tin immersion device 7.

[0052] The fluxing device 6 is used for immersing the to-be-immersed part of the stator body 25 in flux. The fluxing device 6 includes a fluxing lifting mechanism 61 and a fluxing box 62 with an opening facing upward. The fluxing lifting mechanism 61 is a telescopic air cylinder. The fluxing lifting mechanism 61 drives the fluxing box 62 to lift. A flux collecting container 601 for collecting flux is arranged on the workbench 1 at a position relative to the fluxing box 62, and the flux collecting container 601 has an opening facing upward for the fluxing box 62 to immerse in. When the stator body 25 with the to-be-immersed part facing downward is located above the fluxing device 6, the fluxing lifting mechanism 61 drives the fluxing box 62 to ascend, so that the to-be-immersed part of the stator body 25 is immersed in the flux.

[0053] Reference Figure 11 , Figure 12The adjustable tin dipping device 7 is used for tin dipping of the to-be-dipped part of the stator body 25. The adjustable tin dipping device 7 comprises a tin dipping table 71, a tin furnace 72, a tin dipping box 73, a tin dipping displacement assembly 74 and a scraper body 75, the tin furnace 72 and the tin dipping displacement assembly 74 are arranged on the tin dipping table 71, the tin dipping box 73 is slidingly arranged in the opening of the tin furnace 72, both sides of the tin dipping box 73 are provided with lifting mounting frames 702, the part of the lifting mounting frame 702 extending to the outside of the tin dipping box 73 is provided with a first tin dipping lifting mechanism 703, the outer wall of the first tin dipping lifting mechanism 703 is provided with a tin dipping support plate 704, the tin dipping support plate 704 is in abutment and sliding fit with the tin dipping table 71, and the first tin dipping lifting mechanism 703 is a telescopic cylinder, and the first tin dipping lifting mechanism 703 is supported on the tin dipping table 71 through the tin dipping support plate 704.

[0054] The tin dipping displacement assembly 74 comprises a scraper translation mechanism 741 and a scraper lifting mechanism 742, the tin dipping table 71 is provided with a displacement mounting frame 701 for fixed connection of the scraper translation mechanism 741, the scraper lifting mechanism 742 is arranged on the translation end of the scraper translation mechanism 741, and the scraper body 75 is arranged on the lifting end of the scraper lifting mechanism 742, so that the tin dipping displacement assembly 74 adjusts the position of the scraper body 75 in the horizontal direction and the vertical direction, and the tin dipping box 73 is driven by the scraper body 75 driven by the tin dipping displacement assembly 74 to make translational movement relative to the opening of the tin furnace 72.

[0055] The adjustable tin dipping device 7 drives the scraper body 75 to move through the tin dipping displacement assembly 74 to scrape off the oxides and impurities on the surface of the tin liquid in the tin dipping box 73, and the tin dipping displacement assembly 74 adjusts the position of the scraper body 75 in the horizontal direction and the vertical direction to make the scraper body 75 abut against the inner wall or the outer wall of the tin dipping box 73, thereby driving the tin dipping box 73 to make translational movement relative to the opening of the tin furnace 72, so as to finely adjust the position of the tin dipping box 73, so that the opening of the tin dipping box 73 corresponds to the to-be-dipped part of the stator body 25, and the adjustable tin dipping device 7 of the production line can adjust the position of the tin dipping box 73 according to different specifications of the stator body 25, and has high adaptability.

[0056] During the tin dipping of the to-be-dipped part of the stator body 25, the tin dipping box 73 can also be translated to make the to-be-dipped part of the stator body 25 fully contact with the tin liquid, and the translation of the tin dipping box 73 helps to remove the air bubbles that may be generated during the tin dipping process, so that the tin liquid better fills the welding position between the stator body 25 and the circuit board 26, reduces defects such as virtual welding and air holes, and improves the welding quality.

[0057] The tin dipping table 71 is slidingly connected to the workbench 1 in the height direction of the workbench 1, and the workbench 1 is provided with a second tin dipping lifting mechanism 705 for driving the tin dipping table 71 to lift, and the second tin dipping lifting mechanism 705 is a telescopic cylinder or an electric push rod.

[0058] Referring to Figure 13 , the workbench 1 is sequentially provided with a good product conveying device 19, a defective product conveying device 20 and a detection placement table 21 along the moving path of the detection moving device 18, the moving end of the detection moving device 18 is a pneumatic clamp jaw for clamping the stator body 25, the moving end of the detection moving device 18 reciprocates between the good product conveying device 19, the defective product conveying device 20 and the detection placement table 21 to take and place the stator body 25 after immersion in tin, the moving end of the detection moving device 18 is provided with a power-on detection assembly 22, the power-on detection assembly 22 is composed of a plurality of PCB detection probes, used for power-on test on the stator body 25 after immersion in tin, the good product conveying device 19 is a belt conveyor, the defective product conveying device 20 includes a defective product discharge channel 201 and a pushing mechanism 202, the pushing mechanism 202 is a telescopic air cylinder, the pushing end of the pushing mechanism 202 corresponds to the opening of the defective product discharge channel 201 to push the stator body 25 in the defective product discharge channel 201, the stator body 25 after power-on test is qualified is moved by the moving end of the detection moving device 18 to the good product conveying device 19, the stator body 25 after power-on test is unqualified is moved by the moving end of the detection moving device 18 to the defective product conveying device 20.

[0059] The production line moves the stator body 25 assembled with the circuit board 26 from the stator conveying device 2 to the stator turntable station 8 of the turnover device 4 through the assembly moving device 3, so that the circuit board 26 is pressed and assembled on the stator body 25 by the pressing device 5, the stator body 25 assembled with the circuit board 26 is turned over by the turnover device 4 to make the to-be-immersed part downward, so as to be immersed in flux and tin in sequence, the PIN pin 251 on the stator body 25 connected with the circuit board 26 is the to-be-immersed part, the turnover displacement mechanism 9 can drive the turnover device 4 to translate, so that the stator body 25 on the stator turntable station 8 is sequentially sent to the immersion flux device 6 and the adjustable tin immersion device 7, the to-be-immersed part on the stator body 25 is immersed in flux by the immersion flux device 6, and the to-be-immersed part on the stator body 25 is immersed in tin by the adjustable tin immersion device 7, the stator turntable station 8 rotates the stator body 25, so that the to-be-immersed part of the stator body 25 rotates in the tin liquid, ensuring uniform immersion of the stator body 25 in tin. The cooperation of various devices of the production line enables the pressing, turnover, immersion in flux and tin and other processes of the stator body 25 and the circuit board 26 to be automatically completed, improves the production efficiency, enhances the reliability of the electrical connection between the stator body 25 and the circuit board 26, reduces the quality problems caused by human factors, ensures the consistency of the products manufactured by the production line, and the production line can also perform the assembly and welding process of the circuit board 26 and the pin terminal 261, further reduces the labor cost, and also ensures the consistency of the assembled circuit board 26 and the pin terminal 261, which is beneficial to improve the yield and reliability of the finished product.

[0060] Of course, the above are only typical examples of the present application, in addition to which the present application can have other various specific embodiments, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A press-fit tinning production line for assembling motor stators, characterized by: The invention comprises a workbench (1), a stator conveying device (2), an assembly transfer device (3), a turning device (4) arranged along the transfer path of the assembly transfer device (3), a pressing device (5), a soldering flux dipping device (6), and an adjustable tin dipping device (7); a stator turntable station (8) is arranged at the turning end of the turning device (4); the transfer end of the assembly transfer device (3) moves back and forth between the stator conveying device (2) and the turning device (4) to take and place the stator body (25); the pressing device (5) presses the circuit board (26) onto the stator body (25); the PIN pin (26) on the stator body (25) connected to the circuit board (26) is pressed onto the stator body (25); 51) is a part to be dipped, the flipping device (4) drives the stator turntable station (8) to rotate, flips the stator body (25) pressed with the circuit board (26) so that the part to be dipped of the stator body (25) faces downward, and the flipping device (4) is provided with a flipping and shifting mechanism (9) for driving the flipping device (4) to translate, so that the stator body (25) with the part to be dipped facing downward is sequentially stopped at the soldering flux device (6) and the adjustable tinning device (7); the soldering flux device (6) is used to dip the part to be dipped of the stator body (25) into solder flux, and the adjustable tinning device (7) is used to dip the part to be dipped of the stator body (25) into tin; The press-fitting device (5) comprises a press-fitting mounting frame (51), a press-fitting lifting mechanism (52), a press-fitting mounting plate (53) and a press-fitting head (54); the press-fitting mounting frame (51) is fixedly connected to the workbench (1); the press-fitting lifting mechanism (52) is arranged on the top of the press-fitting mounting frame (51); the press-fitting mounting frame (51) is slidably connected to the press-fitting mounting plate (53); the press-fitting mounting plate (53) is located at the stator turntable station (8 ), the lifting end of the press-fitting lifting mechanism (52) is fixedly connected to the top surface of the press-fitting mounting plate (53), the press-fitting head (54) is fixedly connected to the bottom surface of the press-fitting mounting plate (53), the flipping and shifting mechanism (9) drives the flipping device (4) to move horizontally to move the stator turntable station (8) to the bottom of the press-fitting head (54), and the press-fitting head (54) is pressed downward to press-fit the circuit board (26) on the stator body (25); The stator turntable station (8) includes a turntable mounting frame (81), a flipping fixture (82) and a fixture rotation mechanism (83) arranged on the turntable mounting frame (81), the turntable mounting frame (81) is fixedly connected to the flip end of the flip device (4), the flipping fixture (82) is rotatably connected to the turntable mounting frame (81), the flipping fixture (82) is used to clamp the stator body (25), and the fixture rotation mechanism (83) drives the flipping fixture (82) to rotate; It also includes a stator transfer device (10), a pin transfer device (11), a pre-installation transfer device (12), and a PCB transfer device (13); The workbench (1) is provided with a stator loading position (102) on the side of the stator transfer device (10), and the transfer end of the stator transfer device (10) moves back and forth between the stator loading position (102) and the stator conveying device (2) to load the stator body (25) onto the stator conveying position (203) of the stator conveying device (2); The workbench (1) is provided with a PCB loading device (14), and a PCB flipping and clamping device (15) and a PCB detection device (16) arranged vertically along the transfer path of the pre-installed transfer device (12); the transfer end of the pre-installed transfer device (12) reciprocates between the PCB loading device (14), the PCB flipping and clamping device (15), the PCB transfer device (13), and the stator conveying device (2) to pick up and place the circuit board (26); The pre-installed transfer device (12) transfers the circuit board (26) from the PCB loading device (14) to the PCB flipping clamping device (15) so that the PCB detection device (16) can detect the front and back conditions of the circuit board (26). The PCB flipping clamping device (15) clamps the circuit board (26) and flips the circuit board (26) according to the front and back conditions of the circuit board (26) so that the pre-installed transfer device (12) can transfer the circuit board (26) in the correct position to the PCB transfer device (13); The PCB transfer device (13) transfers the circuit board (26) in the correct position to the pin transfer device (11) or the pre-installed transfer device (12) along the transfer path of the PCB transfer device (13); the workbench (1) is provided with a pin loading position (103) along the transfer path of the pin transfer device (11); the transfer end of the pin transfer device (11) moves back and forth between the pin loading position (103) and the PCB transfer device (13) to plug the pin terminal (261) onto the circuit board (26); the PCB transfer device (13) is provided with a lifting welding device (17) on one side close to the pin transfer device (11) for welding the pin terminal (261) onto the circuit board (26); The stator conveying device (2) stops the stator body (25) of the circuit board (26) to be assembled at the pre-assembly transfer device (12) along the feeding path of the stator conveying device (2), and the PCB transfer device (13) transfers the circuit board (26) welded with the pin terminals (261) to the pre-assembly transfer device (12) along the transfer path of the PCB transfer device (13), so that the pre-assembly transfer device (12) can place the circuit board (26) welded with the pin terminals (261) on the stator body (25) of the circuit board (26) to be assembled.

2. The press-fit tinning production line for assembling motor stators according to claim 1 is characterized in that: The adjustable tin immersion device (7) comprises a tin immersion platform (71), a tin furnace (72), a tin immersion box (73), a tin immersion shift assembly (74) and a scraper body (75); the tin furnace (72) and the tin immersion shift assembly (74) are both arranged on the tin immersion platform (71); the tin immersion box (73) is slidably arranged in the opening of the tin furnace (72); the tin immersion shift assembly (74) adjusts the position of the scraper body (75) in the horizontal and vertical directions; the tin immersion box (73) is driven by the scraper body (75) driven by the tin immersion shift assembly (74) to perform translational motion relative to the opening of the tin furnace (72); The tin immersion shift assembly (74) includes a scraper translation mechanism (741) and a scraper lifting mechanism (742); a shift mounting frame (701) for fixedly connecting the scraper translation mechanism (741) is provided on the tin immersion platform (71); the scraper lifting mechanism (742) is provided on the translation end of the scraper translation mechanism (741); and the scraper body (75) is provided on the lifting end of the scraper lifting mechanism (742).

3. The press-fit tinning production line for assembling motor stators according to claim 2 is characterized in that: Both sides of the tin immersion box (73) are provided with lifting mounting frames (702), and the part of the lifting mounting frames (702) extending to the outside of the tin immersion box (73) is provided with a first tin immersion lifting mechanism (703), and the outer wall of the first tin immersion lifting mechanism (703) is provided with a tin immersion support plate (704), and the tin immersion support plate (704) is in abutment and sliding engagement with the tin immersion platform (71).

4. The press-fit tinning production line for assembling motor stators according to claim 2 is characterized in that: The workbench (1) is slidably connected to the tin immersion platform (71), and a second tin immersion lifting mechanism (705) for driving the tin immersion platform (71) to rise and fall is provided on the workbench (1).

5. The press-fit tinning production line for assembling motor stators according to claim 1 is characterized in that: The soldering flux immersion device (6) comprises a soldering flux immersion lifting mechanism (61) and a soldering flux immersion box (62) with an upward opening. The soldering flux immersion lifting mechanism (61) drives the soldering flux immersion box (62) to move up and down. A soldering flux collecting container (601) for collecting soldering flux is provided on the workbench (1) at a position relative to the soldering flux immersion box (62). The soldering flux collecting container (601) has an upward opening for the soldering flux immersion box (62) to be immersed.

6. The press-fit tinning production line for assembling motor stators according to claim 1 is characterized in that: A position detection device (301) is provided at the transfer end of the assembly transfer device (3). The detection end of the position detection device (301) is located above the stator turntable station (8) and is used to detect whether the circuit board (26) of the stator body (25) is in place.

7. The press-fit tinning production line for assembling motor stators according to claim 1, characterized in that: The invention also includes a detection transfer device (18) and a good product conveying device (19), a defective product conveying device (20), and a detection placement table (21) arranged along the transfer path of the detection transfer device (18). The transfer end of the detection transfer device (18) moves back and forth between the good product conveying device (19), the defective product conveying device (20), and the detection placement table (21) to pick up and place the stator body (25) after tinning. The transfer end of the detection transfer device (18) is provided with a power-on detection component (22) for performing a power-on test on the stator body (25) after tinning.

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