PTC (Positive Temperature Coefficient) thermistor assembling device

Abstract

The utility model discloses a PTC (Positive Temperature Coefficient) thermistor assembling device which comprises an operating table, a support arranged on the operating table, a welding device arranged on the support, a rotating column rotationally arranged on the operating table through a bearing, a rotating table fixedly arranged at the upper end of the rotating column, a gear ring fixedly arranged at the lower end of the rotating column and a first motor fixedly arranged at the lower end of the operating table. Rotating gears are fixedly arranged at the driving ends of the first motors and are in meshed connection with the gear rings, rotating grooves are formed in the rotating table, rotating frames are rotationally arranged in the rotating grooves, second motors are arranged on the outer side of the rotating table, the driving ends of the second motors extend into the rotating grooves and are fixedly connected with the rotating frames, and the number of the rotating grooves, the number of the rotating frames and the number of the second motors are all four. A first clamping assembly is arranged in the rotating frame, a moving frame is movably arranged in the rotating frame, an adjusting frame is movably arranged in the moving frame, and a second clamping assembly is arranged in the adjusting frame, so that the PTC thermistors can be subjected to multi-station butt joint, and the plurality of PTC thermistors can be connected, welded and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of PTC thermistor assembly, and more particularly to a PTC thermistor assembly device. Background Art

[0002] A PTC thermistor, or positive temperature coefficient thermistor, is a semiconductor device whose resistance increases with increasing temperature. When assembling a PTC thermistor, an assembly device is required to solder the thermistor to the terminals on the injection-molded housing.

[0003] In the patent document with announcement number CN217667518U, a PTC thermistor assembly device is proposed, which includes: a base plate, a rectangular hole is opened on one side of the base plate surface, a bracket is fixedly connected to the rear side of the base plate, a welding device is installed on the top of the bracket, and a base is fixedly connected to the four sides of the bottom of the base plate; by setting an injection molded shell fixing mechanism and a resistor fixing mechanism, when the thermistor is docked with the terminal in the injection molded shell, the staff places the injection molded shell between two clamping plates, fixes the injection molded shell through a first elastic support rod, and then inserts the thermistor into the inner cavity of the resistor fixing rod. Moreover, through the design of the clamping plate and the second elastic support rod, resistor fixing rods of different sizes can be replaced, and thermistors of different models can be inserted. After the insertion is completed, the transmission mechanism drives the resistor fixing mechanism to move toward the injection molded shell fixing mechanism, so that the thermistor is docked with the terminal in the injection molded shell.

[0004] However, during use of the device, one PTC thermistor needs to be butt-welded and assembled before it can be disassembled before the next PTC thermistor can be butt-welded and assembled. The waiting time is long and the connection welding and assembly cannot be performed, thereby reducing the working efficiency of the entire assembly device. Secondly, the position of the thermistor is fixed in the device, and the positions of the two terminals on the injection-molded housing cannot be adjusted according to the needs of assembly, thereby reducing the flexibility and practicality of the entire device and failing to meet people's usage needs. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the problems existing in the prior art, the utility model provides a PTC thermistor assembly device to solve the technical problem mentioned in the background technology that the device needs to butt-weld and assemble one PTC thermistor and then disassemble it before butt-welding and assembling the next PTC thermistor, resulting in a long waiting time and inability to perform connection welding and assembly.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PTC thermistor assembly device, comprising an operating table, a bracket is provided on the operating table, a welding device is provided on the bracket, a rotating column is provided on the operating table for rotation through a bearing, a rotating table is fixedly provided at the upper end of the rotating column, the rotating table is cross-shaped, a gear ring is fixedly provided at the lower end of the rotating column, a first motor is fixedly provided at the lower end of the operating table, a rotating gear is fixedly provided at the driving end of the first motor, the rotating gear is meshed with the gear ring, a rotating groove is provided on the rotating table, a rotating frame is provided for rotation in the rotating groove, a second motor is provided on the outside of the rotating table, the driving end of the second motor extends into the rotating groove and is fixedly connected to the rotating frame, the number of the rotating groove, the rotating frame and the second motor are all four, a first clamping assembly is provided in the rotating frame, a movable frame is movably provided in the rotating frame, an adjustment frame is movably provided in the movable frame, and a second clamping assembly is provided in the adjustment frame.

[0009] The utility model is further configured such that a movable groove is provided in the rotating frame, a third motor is provided in the movable groove, a screw is fixedly provided at the driving end of the third motor, and one end of the screw is rotatably connected to the movable groove to facilitate the rotation of the screw.

[0010] The utility model is further configured such that the screw is threadedly connected with a moving seat, one end of the moving seat passes through a moving slot and is fixedly connected to the moving frame, and one side of the moving frame is slidably connected to the rotating frame through a track structure to facilitate movement of the moving frame.

[0011] The utility model is further configured as follows: an adjustment slot is provided in the movable frame, a bidirectional lead screw is rotatably provided in the adjustment slot, an adjustment seat is threaded on the bidirectional lead screw, the upper end of the adjustment seat is fixedly connected to the adjustment frame, and there are two adjustment seats and two adjustment frames, which facilitates the movement of the adjustment frame.

[0012] The utility model is further configured such that a fourth motor is fixedly provided on one side of the movable frame, a driving end of the fourth motor extends into the adjusting slot and is fixedly connected to a driving bevel gear, the driving bevel gear is meshedly connected to a driven bevel gear, and the driven bevel gear is fixedly provided on the bidirectional lead screw to facilitate the rotation of the bidirectional lead screw.

[0013] The utility model is further configured such that the first clamping assembly includes a clamping frame, the clamping frame is fixedly connected to the rotating frame, a first electric push rod is fixedly provided at the upper end of the clamping frame, a driving end of the first electric push rod extends into the clamping frame and is fixed with a fixed plate to facilitate movement of the fixed plate.

[0014] The present invention is further configured such that the second clamping assembly includes a second electric push rod, which is fixedly arranged at the upper end of the adjustment frame. The driving end of the second electric push rod extends into the adjustment frame and is fixedly provided with a clamping plate to facilitate the movement of the clamping plate.

[0015] The present invention is further configured such that placement grooves are respectively provided in the adjustment frame and on the clamping plate to facilitate fixing the thermistor.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a PTC thermistor assembly device with the following beneficial effects:

[0018] 1. Through the cooperation of the operating table, the bracket, the welding device, the rotating column, the rotating table, the gear ring, the first motor, the rotating gear, the rotating slot, the rotating frame, the second motor, the moving frame, the adjusting frame, the first clamping assembly and the second clamping assembly, the PTC thermistor can be docked at multiple stations, so that multiple PTC thermistors can be connected, welded and assembled, thereby improving the working efficiency of the entire assembly device.

[0019] 2. The positions of the two second clamping assemblies can be adjusted by cooperating with the movable groove, the third motor, the screw, the movable seat, the adjustment groove, the bidirectional lead screw, the adjustment seat, the fourth motor, the driving bevel gear and the driven bevel gear, so that the position of the clamped thermistor can be adjusted according to the position of the two terminals on the injection-molded shell, thereby increasing the flexibility and practicality of the entire device and meeting people's needs for assembling PTC thermistors of different models.

[0020] 3. The injection molded housing and the thermistor can be clamped and fixed by cooperating with the clamping frame, the first electric push rod, the fixing plate, the second electric push rod, the clamping plate and the placement groove. The entire fixing method does not use a spring method to fix, thereby increasing the stability of the fixation and ensuring the quality of the subsequent butt welding assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a PTC thermistor assembly device in use;

[0022] Figure 2 for Figure 1 A partial enlarged schematic diagram;

[0023] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the operating table and its connecting parts when the rotating column is in the rotating state;

[0024] Figure 4 It is a schematic diagram of the cross-sectional structure of the rotating frame and its connecting parts when the regulating frame is in a moving state;

[0025] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the rotating frame and its connecting parts when the moving frame is in the moving state.

[0026] In the figure: 1. operating table; 2. bracket; 3. welding device; 4. rotating column; 5. rotating table; 6. gear ring; 7. first motor; 8. rotating gear; 9. rotating slot; 10. rotating frame; 11. second motor; 12. moving frame; 13. adjusting frame; 14. moving slot; 15. third motor; 16. screw; 17. moving seat; 18. adjusting slot; 19. bidirectional lead screw; 20. adjusting seat; 21. fourth motor; 22. driving bevel gear; 23. driven bevel gear; 24. clamping frame; 25. first electric push rod; 26. fixing plate; 27. second electric push rod; 28. clamping plate; 29. ​​placement slot. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0029] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually relative to the directions shown in the drawings, or relative to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually relative to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0030] See also Figure 1-Figure 5 , a PTC thermistor assembly device, including an operating table 1, a bracket 2 is provided on the operating table 1, a welding device 3 is provided on the bracket 2, a rotating column 4 is provided on the operating table 1 for rotation through a bearing, a rotating table 5 is fixedly provided on the upper end of the rotating column 4, the rotating table 5 is cross-shaped, a gear ring 6 is fixedly provided at the lower end of the rotating column 4, a first motor 7 is fixedly provided at the lower end of the operating table 1, a rotating gear 8 is fixedly provided at the driving end of the first motor 7, the rotating gear 8 is meshed with the gear ring 6, the rotating table 5 is provided with a rotating groove 9, a rotating frame 10 is rotatably provided in the rotating groove 9, a second motor 11 is provided on the outside of the rotating table 5, the driving end of the second motor 11 extends into the rotating groove 9 and is fixedly connected to the rotating frame 10, the number of the rotating groove 9, the rotating frame 10 and the second motor 11 are all four, a first clamping assembly is provided in the rotating frame 10, a moving frame 12 is movably provided in the rotating frame 10, an adjusting frame 13 is movably provided in the moving frame 12, and a second clamping assembly is provided in the adjusting frame 13.

[0031] In this embodiment, the injection molded housing is fixed by the first clamping assembly, the thermistor is fixed by two first clamping assemblies, the thermistor and the terminal on the injection molded housing are docked by moving the movable frame 12, and after docking one PTC thermistor, the first motor 7 is started, the first motor 7 drives the rotating gear 8 to rotate, the rotating gear 8 drives the gear ring 6 to rotate, the gear ring 6 drives the rotating column 4 to rotate, the rotating column 4 drives the rotating table 5 to rotate 90 degrees, and the second PTC thermistor is assembled and docked, and the rotating table 5 continues to rotate 90 degrees, so that the first docked PTC thermistor rotates To the bottom of the welding device 3, and then weld it through the welding device 3 to complete the assembly. Since the welding device 3 is a prior art, its specific structure and working principle are not described here. When it is necessary to weld the other side, the second motor 11 is started, and the second motor 11 drives the rotating frame 10 to rotate, thereby flipping the PTC thermistor. During the welding process of the first PTC thermistor, the third PTC thermistor can be assembled and docked. Repeat this operation. Before assembling and docking the fifth PTC thermistor, the first welded PTC thermistor can be disassembled first. Repeat this operation to dock and connect the multi-station PTC thermistors.

[0032] See also Figure 1-Figure 5 , as an implementation method for docking a PTC thermistor: a moving groove 14 is provided in the rotating frame 10, a third motor 15 is provided in the moving groove 14, a screw 16 is fixed to the driving end of the third motor 15, one end of the screw 16 is rotatably connected to the moving groove 14, the screw 16 is threadedly connected to a moving seat 17, one end of the moving seat 17 passes through the moving groove 14 and is fixedly connected to the moving frame 12, one side of the moving frame 12 is slidably connected to the rotating frame 10 through a track structure, and an adjustment groove 18 is provided in the moving frame 12, so A bidirectional lead screw 19 is rotatably provided in the adjusting groove 18, and an adjusting seat 20 is threaded on the bidirectional lead screw 19. The upper end of the adjusting seat 20 is fixedly connected to the adjusting frame 13. There are two adjusting seats 20 and two adjusting frames 13. A fourth motor 21 is fixedly provided on one side of the moving frame 12. The driving end of the fourth motor 21 extends into the adjusting groove 18 and is fixedly connected to a driving bevel gear 22. The driving bevel gear 22 is meshed with a driven bevel gear 23, and the driven bevel gear 23 is fixedly provided on the bidirectional lead screw 19.

[0033] Specifically, the third motor 15 can be started according to the position of the two terminals of the injection shell, the third motor 15 drives the bidirectional screw rod 19 to rotate, because the bidirectional screw rod 19 is provided with two threads in opposite directions, the two adjusting seats 20 move in the adjacent direction, the adjusting seat 20 drives the adjusting frame 13 to move, the adjusting frame 13 drives the second clamping assembly to move, so as to adjust the position of the second clamping assembly according to the position of the two terminals of the injection shell, the third motor 15 is started, the third motor 15 drives the screw rod 16 to rotate, because the screw rod 16 is screwed with the moving seat 17, the moving seat 17 drives the moving frame 12 to move, the moving frame 12 drives the two adjusting frames 13 to move, the adjusting frame 13 drives the thermistor through the second clamping assembly, so as to complete the butt joint of the thermistor and the two terminals of the injection shell.

[0034] Please refer to Figure 1-Figure 5 , as an embodiment of fixing the thermistor and the injection shell: the first clamping assembly comprises a clamping frame 24, the clamping frame 24 is fixedly connected with the rotating frame 10, a first electric push rod 25 is fixedly arranged at the upper end of the clamping frame 24, the driving end of the first electric push rod 25 extends into the clamping frame 24 and is fixedly provided with a fixed plate 26, the second clamping assembly comprises a second electric push rod 27, the second electric push rod 27 is fixedly arranged at the upper end of the adjusting frame 13, the driving end of the second electric push rod 27 extends into the adjusting frame 13 and is fixedly provided with a clamping plate 28, and the adjusting frame 13 and the clamping plate 28 are respectively provided with a placing groove 29.

[0035] Specifically, the injection shell is placed into the clamping frame 24, the first electric push rod 25 is started, the first electric push rod 25 drives the fixed plate 26 to move downward, so that the fixed plate 26 cooperates with the clamping frame 24 to clamp and fix the injection shell. The thermistor is placed into the placing groove 29, the second electric push rod 27 is started, the second electric push rod 27 drives the clamping plate 28 to move downward, so that the clamping plate 28 cooperates with the adjusting frame 13 to clamp and fix the thermistor.

[0036] In summary, the overall equipment is used:

[0037] When it is necessary to fix the injection shell and the thermistor, the injection shell is placed into the clamping frame 24, the first electric push rod 25 is started, the first electric push rod 25 drives the fixed plate 26 to move downward, so that the fixed plate 26 cooperates with the clamping frame 24 to clamp and fix the injection shell. The thermistor is placed into the placing groove 29, the second electric push rod 27 is started, the second electric push rod 27 drives the clamping plate 28 to move downward, so that the clamping plate 28 cooperates with the adjusting frame 13 to clamp and fix the thermistor.

[0038] When it is necessary to adjust the position of the thermistor according to the position of the two terminals of the injection molding shell, the third motor 15 is started, and the third motor 15 drives the bidirectional screw 19 to rotate. Since the bidirectional screw 19 is provided with two threaded areas in opposite directions, the two adjustment seats 20 move in adjacent directions, and the adjustment seat 20 drives the adjustment frame 13 to move, and the adjustment frame 13 drives the fixed thermistor to move, thereby adjusting the position of the two thermistors according to the position of the two terminals of the injection molding shell, and the third motor 15 is started, and the third motor 15 drives the screw 16 to rotate. Since the screw 16 is threadedly connected to the moving seat 17, the moving seat 17 drives the moving frame 12 to move, and the moving frame 12 drives the two adjustment frames 13 to move, and the adjustment frame 13 drives the two fixed moving thermistors to move, thereby completing the docking of the thermistor and the two terminals of the injection molding shell.

[0039] When it is necessary to perform multi-station docking on the PTC thermistor, after docking one PTC thermistor, start the first motor 7, the first motor 7 drives the rotating gear 8 to rotate, the rotating gear 8 drives the gear ring 6 to rotate, the gear ring 6 drives the rotating column 4 to rotate, the rotating column 4 drives the rotating table 5 to rotate 90 degrees, and the second PTC thermistor is assembled and docked. The rotating table 5 continues to rotate 90 degrees, so that the first docked PTC thermistor is rotated to the bottom of the welding device 3, and then welded by the welding device 3. Since the welding device 3 is a prior art, its specific structure and working principle are not described here. When it is necessary to weld the other side, start the second motor 11, and the second motor 11 drives the rotating frame 10 to rotate, thereby flipping the PTC thermistor. During the welding process of the first PTC thermistor, the third PTC thermistor can be assembled and docked to complete the assembly. Repeat this operation. Before assembling and docking the fifth PTC thermistor, the first welded PTC thermistor can be disassembled first. Repeat this operation to connect the PTC thermistors at multiple locations and perform connection welding.

[0040] A controller is provided on the operating table 1, and all electrical equipment on the entire device are controlled by the controller. Since the equipment matched with the controller is a commonly used equipment, its control principle and line connection are all existing well-known and mature technologies, and its electrical connection relationship and specific circuit structure will not be repeated here.

[0041] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A PTC thermistor assembly device, comprising an operating table (1), a bracket (2) provided on the operating table (1), and a welding device (3) provided on the bracket (2), wherein: The operating table (1) is provided with a rotating column (4) rotatably provided through a bearing, a rotating platform (5) is fixedly provided at the upper end of the rotating column (4), the rotating platform (5) is cross-shaped, a gear ring (6) is fixedly provided at the lower end of the rotating column (4), a first motor (7) is fixedly provided at the lower end of the operating table (1), a rotating gear (8) is fixedly provided at the driving end of the first motor (7), the rotating gear (8) is meshedly connected with the gear ring (6), a rotating groove (9) is provided on the rotating platform (5), and a rotating frame is rotatably provided in the rotating groove (9). (10), a second motor (11) is provided on the outside of the rotating table (5), a driving end of the second motor (11) extends into the rotating groove (9) and is fixedly connected to the rotating frame (10), the number of the rotating groove (9), the rotating frame (10) and the second motor (11) are all four, a first clamping assembly is provided in the rotating frame (10), a moving frame (12) is movably provided in the rotating frame (10), an adjusting frame (13) is movably provided in the moving frame (12), and a second clamping assembly is provided in the adjusting frame (13).

2. A PTC thermistor assembly device according to claim 1, characterized in that: A moving groove (14) is provided in the rotating frame (10), a third motor (15) is provided in the moving groove (14), a screw rod (16) is fixedly provided at the driving end of the third motor (15), and one end of the screw rod (16) is rotatably connected to the moving groove (14).

3. A PTC thermistor assembly device according to claim 2, characterized in that: The screw rod (16) is threadedly connected to a movable seat (17), one end of the movable seat (17) passes through the movable slot (14) and is fixedly connected to the movable frame (12), and one side of the movable frame (12) is slidably connected to the rotating frame (10) via a track structure.

4. A PTC thermistor assembly device according to claim 3, characterized in that: An adjusting slot (18) is provided in the movable frame (12), a bidirectional lead screw (19) is rotatably provided in the adjusting slot (18), an adjusting seat (20) is threadedly provided on the bidirectional lead screw (19), an upper end of the adjusting seat (20) is fixedly connected to the adjusting frame (13), and the number of the adjusting seat (20) and the number of the adjusting frame (13) are both two.

5. A PTC thermistor assembly device according to claim 4, characterized in that: A fourth motor (21) is fixedly provided on one side of the movable frame (12); a driving end of the fourth motor (21) extends into the adjustment slot (18) and is fixedly connected to a driving bevel gear (22); the driving bevel gear (22) is meshedly connected to a driven bevel gear (23); and the driven bevel gear (23) is fixedly provided on the bidirectional lead screw (19).

6. A PTC thermistor assembly device according to any one of claims 1 or 2, characterized in that: The first clamping assembly comprises a clamping frame (24), the clamping frame (24) being fixedly connected to the rotating frame (10), a first electric push rod (25) being fixedly provided at the upper end of the clamping frame (24), and a driving end of the first electric push rod (25) extending into the clamping frame (24) and being fixedly provided with a fixing plate (26).

7. A PTC thermistor assembly device according to claim 6, characterized in that: The second clamping assembly includes a second electric push rod (27), the second electric push rod (27) is fixedly arranged on the upper end of the adjustment frame (13), and the driving end of the second electric push rod (27) extends into the adjustment frame (13) and is fixedly provided with a clamping plate (28).

8. The PTC thermistor assembly device according to claim 7, characterized in that: A placement groove (29) is provided in the regulating frame (13) and on the clamping plate (28), respectively.

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