Capacitance pen welding positioning device

Abstract

The invention relates to the technical field of capacitance pen welding positioning, in particular to a capacitance pen welding positioning device. The welding device is used for welding a pressure-sensitive component and a coil component in a capacitance pen to a circuit board and comprises a rack, a positioning supporting seat, a pressure-sensitive positioning mechanism and a coil positioning mechanism, and the positioning supporting seat, the pressure-sensitive positioning mechanism and the coil positioning mechanism are installed on the rack. The pressure-sensitive positioning mechanism comprises a first fixed supporting frame, a sliding installation frame, a first pushing assembly, a second pushing assembly and a first clamping assembly; a jacking plate is arranged below the first fixed supporting frame, a pressure-sensitive bearing seat is arranged on the jacking plate, the second pushing assembly and the first clamping assembly are both arranged on the sliding mounting frame, and the first clamping assembly comprises a first lead used for clamping a pressure-sensitive component and connected to the pressure-sensitive component. Accurate positioning in the welding process can be achieved, the accuracy of the welding position is ensured, the product quality and performance are improved, the working efficiency is improved, the production cost is reduced, and meanwhile a positioning device with a complex structure and high maintenance cost is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of capacitive pen welding positioning, and in particular to a capacitive pen welding positioning device. Background Art

[0002] Tablet computers, smartphones, handwriting tablets and other electronic devices are often equipped with capacitive pens to facilitate more accurate touch operations and handwriting input. The capacitive pen is equipped with a pressure-sensitive component to transmit the pressure on the tip of the capacitive pen, thereby recognizing the pressure and converting the pressure into an electrical signal to input to the tablet computer, smartphone or computer connected to the handwriting tablet.

[0003] In the production process of capacitive pens, accurately and efficiently welding pressure-sensitive components and coil components to the circuit board is a crucial step. However, existing welding processes often have problems such as inaccurate positioning, complex operation, and low efficiency. Traditional welding methods may rely on manual rough positioning, which is prone to deviations and affects product quality and performance. Moreover, manual operation is not only slow, but also difficult to ensure consistency, which increases production costs and production cycles. At the same time, some existing positioning devices have complex structures, difficult debugging, and high maintenance costs, and cannot meet the production needs of high precision and high efficiency. Summary of the invention

[0004] Based on this, it is necessary to provide a capacitive pen welding positioning device to address the existing technical problems.

[0005] In order to solve the problems of the prior art, the technical solution adopted by the present invention is:

[0006] The invention provides a capacitive pen welding positioning device, which is used for welding pressure-sensitive components and coil components in a capacitive pen to a circuit board of a bottom shell of the capacitive pen. The device comprises a frame, a positioning support seat, a pressure-sensitive positioning mechanism and a coil positioning mechanism installed on the frame. The bottom shell of the capacitive pen is horizontally installed on the positioning support seat. The pressure-sensitive positioning mechanism is located at one end of the positioning support seat along the length direction. The coil positioning mechanism is located on the side of the positioning support seat. The pressure-sensitive positioning mechanism comprises a first fixed support frame, a sliding mounting frame, a first pushing assembly, a second pushing assembly and a first clamping assembly. The first fixed support frame is fixedly connected to the frame, the sliding mounting frame is slidably connected to the first fixed support frame, the first pushing assembly is fixedly installed on the first fixed support frame and is transmission-connected to the sliding mounting frame. A lifting plate is provided below the first fixed support frame, and a pressure-sensitive bearing seat is provided on the lifting plate. The second pushing assembly and the first clamping assembly are both arranged on the sliding mounting frame. The second pushing assembly is transmission-connected to the first clamping assembly. The first clamping assembly comprises a first side wall clamping claw for clamping the pressure-sensitive component and a first lead clamping claw for clamping a lead connected to the pressure-sensitive component.

[0007] Preferably, the coil positioning mechanism includes a second support frame, an articulated pressure plate, a clamping drive assembly, a second clamping assembly, a coil bearing seat and a direction deflection assembly. The second support frame is arranged on the side of the positioning support seat, the coil bearing seat is arranged on the second support frame, the articulated pressure plate is located above the positioning support seat, the articulated pressure plate is hinged to the side of the positioning support seat away from the second support frame, the clamping drive assembly is installed on the frame, the output end of the clamping drive assembly is transmission connected to the articulated pressure plate, the second clamping assembly and the direction deflection assembly are both arranged on the articulated pressure plate, the output end of the second clamping assembly is transmission connected to the direction deflection assembly, and the second clamping assembly is used to clamp lead 2 connected to the coil component.

[0008] Preferably, the first pushing assembly includes a first spring, a second spring, a first linear drive, a first hinged rod and a first lifting frame, the top of the first fixed support frame is horizontally arranged and the length direction is consistent with the length direction of the positioning support seat, the sliding mounting frame is slidably connected to the first fixed support frame, the two ends of the first spring are respectively fixedly connected to the side wall of the first fixed support frame and the side wall of the sliding mounting frame, the first lifting frame is horizontally arranged, the first lifting frame and the sliding mounting frame vertically slide together, the two ends of the second spring are respectively fixedly connected to the sliding mounting frame and the first lifting frame, the first linear drive is fixedly installed on the side wall of the first fixed support frame, one end of the first hinged rod is hinged to the output end of the first linear drive, the other end of the first hinged rod is hinged to the top of the first lifting frame, the second pushing assembly is arranged at the top of the first lifting frame, and the first clamping assembly is arranged at the bottom of the first lifting frame.

[0009] Preferably, the first clamping assembly also includes a lifting plate and a squeezing plate, the first side wall clamp is composed of two side wall half clamps, the first lead clamp is provided with two groups and is respectively located above the two side leads of the pressure-sensitive component, the first lead clamp is composed of two first lead half clamps symmetrically arranged along the vertical direction, one end of the first side wall clamp is hinged to the first lifting frame, the lifting plate is horizontally arranged directly below the first lifting frame and is slidably connected to the first lifting frame in the vertical direction, the middle part of the first side wall clamp is transmission connected to the lifting plate, the top end of the first lead clamp is hinged to the first lifting frame, the other end of the first lead clamp is transmission connected to the lifting plate, the squeezing plate is slidably connected to the lifting plate, a horizontal slide is provided on the lifting plate, and an inclined slide is provided on the first lifting frame, the inclined slide is gradually offset from top to bottom toward the side close to the circuit board, the squeezing plate is transmission connected to the lifting plate through a sliding block and a horizontal slide, and the squeezing plate is transmission connected to the first lifting frame through a sliding block and an inclined slide.

[0010] Preferably, the second pushing assembly includes a second linear drive and a material discharge push rod. The second linear drive is vertically fixedly installed on the top of the first lifting frame. The output end of the second linear drive is fixedly connected to the top of the vertically arranged material discharge push rod, and the bottom end of the material discharge push rod is transmission connected to the lifting plate.

[0011] Preferably, the clamping drive assembly includes a third linear drive, a third fixed support frame, a first push rod, a first transmission slide block and a first slide rail. A clamping block cooperating with the coil bearing seat is provided on the side of the hinged pressure plate close to the positioning support seat. The third fixed support frame is fixedly installed on the frame and is located on the side of the positioning support seat away from the second support frame. The third linear drive is hingedly set on the third fixed support frame. The first slide rail is fixedly installed on the top of the hinged pressure plate. The length direction of the first slide rail is perpendicular to the length direction of the positioning support seat. The first transmission slide block is slidably set on the first slide rail. One end of the first push rod is fixedly connected to the third linear drive, and the other end of the first push rod is hinged to the first transmission slide.

[0012] Preferably, the second clamping assembly includes a fourth linear drive, a second lead clamp, a first connecting rod and a pushing device, one end of the second lead clamp is hinged to the hinged pressure plate, the side wall of the second lead clamp is hinged to the first connecting rod, the second lead clamp is provided with two groups and respectively clamps two leads, each second lead clamp is composed of two second lead half clamps symmetrically arranged along the vertical direction, the first connecting rod is transmission connected to the pushing device, the pushing device is slidably arranged on the hinged pressure plate, the fourth linear drive is fixedly mounted on the hinged pressure plate, and the output end of the fourth linear drive is transmission connected to the pushing device.

[0013] Preferably, the pushing device includes a first push plate, a second push plate, a fourth spring and a limit plate, a mounting plate is fixedly provided on the hinged pressure plate, the length direction of the mounting plate is consistent with the pushing direction of the pushing device, the output end of the fourth linear drive is fixedly connected to the second push plate, the first push plate and the second push plate are both vertically arranged, the first push plate is located on the side of the second push plate away from the positioning support seat, the first push plate and the first connecting rod are hinged on the side away from the second lead clamp, the fourth spring is horizontally arranged between the first push plate and the second push plate, one end of the fourth spring is fixedly connected to the first push plate, the other end of the fourth spring is fixedly connected to the second push plate, the limit plate is fixedly arranged on the mounting plate, the limit plate can contact with the first push plate, and the second push plate is transmission connected to the direction deflection assembly.

[0014] Preferably, the direction deflection assembly includes a connecting column, a transmission column, a fifth spring, a second transmission slide and a semi-arc clamping ring, a movable slide groove is provided on the mounting plate, each second lead half clamp is provided with a connecting column and a semi-arc clamping ring, the connecting column is an elastic telescopic rod, one end of the connecting column is connected to the second lead half clamp, the other end of the connecting column is transmission connected to the semi-arc clamping ring, the second transmission slide is transmission connected to the semi-arc clamping ring, the transmission column is installed on the second transmission slide, the transmission column slides with the mounting plate through the movable slide groove, the second push plate is in contact with the second transmission slide, the fifth spring is arranged in the movable slide groove, the two ends of the fifth spring are respectively transmission connected to the bottom of the groove and the transmission column, and the movable slide groove is gradually inclined from top to bottom toward the side close to the positioning support seat.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention overcomes the problem of inaccurate positioning in traditional welding processes, can accurately position pressure-sensitive components and coil components, ensure the accuracy of welding positions, and improve product quality and performance. It improves work efficiency and reduces production costs, while avoiding positioning devices with complex structures and high maintenance costs, saving production investment, and accurately clamping and positioning pressure-sensitive components, coil components, and lead 1 and lead 2 thereof through precise clamping mechanisms such as the first clamping assembly and the second clamping assembly, significantly improving welding accuracy, reducing deviations, and ensuring product quality and performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of a capacitive pen in a capacitive pen welding positioning device;

[0018] Figure 2 A schematic diagram of the three-dimensional structure of a capacitive pen welding positioning device Figure 1 ;

[0019] Figure 3 A schematic diagram of the three-dimensional structure of a capacitive pen welding positioning device Figure 2 ;

[0020] Figure 4 It is a front view of a capacitive pen welding positioning device;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of a pressure-sensitive positioning mechanism in a capacitive pen welding positioning device;

[0022] Figure 6 This is a schematic diagram of the partial three-dimensional structure of the pressure-sensitive positioning mechanism in a capacitive pen welding positioning device Figure 1 ;

[0023] Figure 7 This is a schematic diagram of the partial three-dimensional structure of the pressure-sensitive positioning mechanism in a capacitive pen welding positioning device Figure 2 ;

[0024] Figure 8 This is a schematic diagram of the three-dimensional structure of the first clamping component in a capacitive pen welding positioning device. Figure 1 ;

[0025] Fig. 9 This is a schematic diagram of the three-dimensional structure of the first clamping component in a capacitive pen welding positioning device. Figure 2 ;

[0026] Fig.10 It is a three-dimensional structural schematic diagram of a coil positioning mechanism in a capacitive pen welding positioning device;

[0027] Fig.11 It is a partial three-dimensional structural schematic diagram of a coil positioning mechanism in a capacitive pen welding positioning device;

[0028] Fig.12 This is a schematic diagram of the three-dimensional structure of the second clamping component in the capacitive pen welding positioning device Figure 1 ;

[0029] Fig.13 This is a schematic diagram of the three-dimensional structure of the second clamping component in the capacitive pen welding positioning device Figure 2 .

[0030] The numbers in the figure are:

[0031] 1. Pressure-sensitive components; 2. Lead 1; 3. Coil components; 4. Lead 2; 5. Circuit board; 6. Frame; 7. Positioning support seat; 8. Pressure-sensitive positioning mechanism; 9. Coil positioning mechanism; 10. Bottom shell; 11. First fixed support frame; 12. Sliding mounting frame; 13. First pushing assembly; 14. Second pushing assembly; 15. First clamping assembly; 16. Lifting plate; 17. Pressure-sensitive bearing seat; 18. Second support frame; 19. Articulated pressure plate; 20. Clamping drive assembly; 21. Second clamping assembly; 22. Coil bearing seat; 23. Direction deflection assembly; 24. First spring; 25. Second spring; 26. First linear drive; 27. First hinged rod; 28. First lifting frame; 29. ​​First side wall clamp ;30. The first lead clamp;31. The lifting plate;32. The extrusion plate;33. The horizontal slide;34. The inclined slide;35. The sliding block;36. The second linear drive;37. The unloading push rod;38. The third linear drive;39. The third fixed support frame;40. The first push rod;41. The first transmission slider;42. The first slide rail;43. The clamping block;44. The fourth linear drive;45. The second lead clamp;46. The first connecting rod;47. The first push plate;48. The second push plate;49. The fourth spring;50. The limit plate;51. The mounting plate;52. The connecting column;53. The transmission column;54. The fifth spring;55. The second transmission slider;56. The semi-arc clamping ring;57. The movable slide;58. The welding avoidance groove. DETAILED DESCRIPTION

[0032] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] like Figure 1-13The capacitive pen welding positioning device shown is used to weld the pressure-sensitive component 1 and the coil component 3 in the capacitive pen to the circuit board 5 of the bottom shell 10 of the capacitive pen, including a frame 6 and a positioning support seat 7, a pressure-sensitive positioning mechanism 8 and a coil positioning mechanism 9 installed on the frame 6. The bottom shell 10 of the capacitive pen is horizontally installed on the positioning support seat 7. The pressure-sensitive positioning mechanism 8 is located at one end of the positioning support seat 7 along the length direction. The coil positioning mechanism 9 is located on the side of the positioning support seat 7. The pressure-sensitive positioning mechanism 8 includes a first fixed support frame 11, a sliding mounting frame 12, a first pushing assembly 13, a second pushing assembly 14 and a first clamping assembly 15. The first fixed support The support frame 11 is fixedly connected to the frame 6, the sliding mounting frame 12 is slidably connected to the first fixed support frame 11, the first pushing assembly 13 is fixedly mounted on the first fixed support frame 11 and is transmission-connected to the sliding mounting frame 12, a lifting plate 16 is provided under the first fixed support frame 11, a pressure-sensitive bearing seat 17 is provided on the lifting plate 16, the second pushing assembly 14 and the first clamping assembly 15 are both arranged on the sliding mounting frame 12, the second pushing assembly 14 is transmission-connected to the first clamping assembly 15, and the first clamping assembly 15 includes a first side wall clamp 29 for clamping the pressure-sensitive component 1 and a first lead clamp 30 for clamping the lead 1 2 connected to the pressure-sensitive component 1.

[0034] In the welding operation of the capacitive stylus, the bottom shell 10 of the capacitive stylus is first placed horizontally on the positioning support seat 7, and the circuit board 5 in the bottom shell 10 is also stably supported. At this time, the pressure sensing positioning mechanism 8 starts to operate, and the lifting plate 16 located below the first fixed support frame 11 begins to rise. The pressure sensing bearing seat 17 on the lifting plate 16 drives the pressure sensing component 1 carried thereon to move to the right below the first clamping assembly 15, and the pressure sensing component 1 is clamped by the first clamping assembly 15. After the clamping is completed, the first pushing component 13 generates a driving force and transmits it to the sliding mounting frame 12. The sliding mounting frame 12 slides smoothly along the predetermined track on the first fixed support frame 11, accurately driving the pressure-sensitive component 1 to move to the welding position. The first clamping component 15 accurately clamps the pressure-sensitive component 1 and the lead 2 connected to the pressure-sensitive component 1 in turn, and can align the position of the lead 2 during the clamping process. After the welding is completed, the pressure-sensitive component 1 needs to be pressed and installed in the corresponding position of the bottom shell 10. At this time, the second pushing component 14 starts to move, pushing the first clamping component 15 to release the clamping state, and can press the pressure-sensitive component 1 into the bottom shell 10.

[0035] The first clamping assembly 15 accurately clamps the pressure-sensitive component 1 and the lead 1-2 to ensure that they will not be displaced or shaken during the subsequent welding process. During the whole process, the movements of each component are coordinated and orderly, making full preparations for the subsequent precise welding of the pressure-sensitive component 1 to the circuit board 5. The present invention can accurately clamp the pressure-sensitive component 1 and its lead 1-2, ensure the position accuracy during the welding process, and improve the welding quality. The various components work together to quickly complete the positioning and clamping preparation of the pressure-sensitive component 1 and shorten the production cycle. Through a stable structure and precise movements, the stability of the entire positioning process is guaranteed and errors are reduced. The automated positioning and clamping process reduces the difficulty of operation and the intensity of manual labor, and is easy to operate.

[0036] The coil positioning mechanism 9 includes a second support frame 18, a hinged pressure plate 19, a pressing drive assembly 20, a second clamping assembly 21, a coil bearing seat 22 and a direction deflection assembly 23. The second support frame 18 is arranged beside the positioning support seat 7, and the coil bearing seat 22 is arranged on the second support frame 18 (such as Figure 3 and Fig.11 As shown), the hinged pressure plate 19 is located above the positioning support seat 7, the hinged pressure plate 19 is hinged to the side of the positioning support seat 7 away from the second support frame 18, the clamping drive assembly 20 is installed on the frame 6, the output end of the clamping drive assembly 20 is transmission connected to the hinged pressure plate 19, the second clamping assembly 21 and the direction deflection assembly 23 are both arranged on the hinged pressure plate 19, the output end of the second clamping assembly 21 is transmission connected to the direction deflection assembly 23, and the second clamping assembly 21 is used to clamp the lead 2 4 connected to the coil component 3.

[0037] During the capacitor pen welding process, the coil positioning mechanism 9 plays a role. First, the coil bearing seat 22 on the second support frame 18 located next to the positioning support seat 7 is ready to receive the coil component 3. The hinged pressure plate 19 is located above the positioning support seat 7, and under the action of the clamping drive assembly 20, the hinged pressure plate 19 moves. The second clamping assembly 21 clamps the lead 2 4 connected to the coil component 3, and the direction deflection assembly 23 adjusts the direction and position of the coil component 3 as needed to ensure that the coil component 3 can be accurately aligned with the corresponding position on the circuit board 5, making full preparations for subsequent welding operations. The coil positioning mechanism 9 can accurately clamp the lead 2 4 of the coil component 3, and effectively adjust its direction and position, ensure the accuracy of welding, improve the welding quality, ensure the precise matching of the coil component 3 and the circuit board 5, and significantly improve the quality and stability of welding. Work in conjunction with the pressure-sensitive positioning mechanism 8 to improve the efficiency of the entire welding positioning process.

[0038] The first pushing assembly 13 includes a first spring 24, a second spring 25, a first linear drive 26, a first hinged rod 27 and a first lifting frame 28. The top end of the first fixed support frame 11 is horizontally arranged and the length direction is consistent with the length direction of the positioning support seat 7. The sliding mounting frame 12 is slidably connected to the first fixed support frame 11. The two ends of the first spring 24 are respectively fixedly connected to the side walls of the first fixed support frame 11 and the side walls of the sliding mounting frame 12. The first lifting frame 28 is horizontally arranged, and the first lifting frame 28 and the sliding mounting frame 12 are vertically slidably matched. The two ends of the second spring 25 are respectively fixedly connected to the sliding mounting frame 12 and the first lifting frame 28. The first linear drive 26 is fixedly installed on the side wall of the first fixed support frame 11. One end of the first hinged rod 27 is hinged to the output end of the first linear drive 26, and the other end of the first hinged rod 27 is hinged to the top of the first lifting frame 28. The second pushing assembly 14 is arranged at the top of the first lifting frame 28, and the first clamping assembly 15 is arranged at the bottom of the first lifting frame 28.

[0039] The first linear drive 26 on the first fixed support frame 11 is started, and the first lifting frame 28 is driven to move through the transmission of the first hinge rod 27. The spring force of the first spring 24 is less than the spring strength of the second spring 25. When pushing, the first spring 24 is overcome to drive the sliding mounting frame 12 to move horizontally. During this process, the second spring 25 will only deform slightly. When the sliding mounting frame 12 is moved into place, the first linear drive 26 continues to move, driving the first lifting frame 28 to move downward to overcome the elastic force of the second spring 25. The first lifting frame 28 is horizontally arranged and cooperates with the sliding mounting frame 12 to slide vertically. Under the action of the first linear drive 26, the first lifting frame 28 moves vertically along the sliding mounting frame 12. At the same time, the first spring 24 and the second spring 25 play a buffering and resetting role between the first fixed support frame 11 and the sliding mounting frame 12, and between the sliding mounting frame 12 and the first lifting frame 28, respectively, to ensure the smoothness of the movement. The second pushing assembly 14 is arranged on the top of the first lifting frame 28. The second pushing assembly 14 is used to drive the first clamping assembly 15 to release the pressure-sensitive component 1. The first clamping assembly 15 is arranged on the bottom of the first lifting frame 28. The position is adjusted as the first lifting frame 28 moves, so as to achieve precise pushing and clamping operations on the pressure-sensitive component 1. The present invention achieves precise control of the position of the first lifting frame 28 through the cooperation of the first linear drive 26 and the first hinged rod 27, ensuring that the pressure-sensitive component 1 can be accurately pushed and clamped, and ensuring accurate positioning before welding. This reasonable structural layout is compact, saves space, improves the reliability of the device operation, reduces the failure rate, and prolongs the service life.

[0040] The first clamping assembly 15 also includes a lifting plate 31 and a pressing plate 32. The first side wall clamp 29 is composed of two side wall half clamps. The first lead clamp 30 is provided with two groups and is respectively located above the lead 2 on both sides of the pressure sensing component 1. The first lead clamp 30 is composed of two first lead half clamps symmetrically arranged along the vertical direction. One end of the first side wall clamp 29 is hinged to the first lifting frame 28. The lifting plate 31 is horizontally arranged directly below the first lifting frame 28 and is slidably connected to the first lifting frame 28 in the vertical direction. The middle part of the first side wall clamp 29 is transmission-connected to the lifting plate 31 (such as Fig. 9 As shown), the top end of the first lead clamp 30 is hinged to the first lifting frame 28, the other end of the first lead clamp 30 is transmission-connected to the lifting plate 31, the pressing plate 32 is slidably connected to the lifting plate 31, the lifting plate 31 is provided with a horizontal slide 33, and the first lifting frame 28 is provided with an inclined slide 34 (as shown Figure 8 As shown), the inclined slide groove 34 is gradually offset from top to bottom toward the side close to the circuit board 5, the extrusion plate 32 is transmission-connected to the lifting plate 31 through the sliding block 35 and the horizontal slide groove 33, and the extrusion plate 32 is transmission-connected to the first lifting frame 28 through the sliding block 35 and the inclined slide groove 34.

[0041] In the welding positioning process of the capacitive stylus, the first side wall clamp 29, the first lead clamp 30, the lifting plate 31 and the extrusion plate 32 cooperate closely. When taking materials, the lifting plate 16 rises to squeeze the lifting plate 31 and realize the lifting of the lifting plate 31 with the cooperation of the second pushing component 14. This cooperation process is that the second pushing component 14 serves as the driving source for the displacement of the lifting plate 31, and the lifting plate 16 is used to synchronously displace the pressure-sensitive component 1 upward when the first clamping component 15 is not clamped for support. At this time, the first side wall clamp 29 and the first lead clamp 30 are driven to clamp the pressure-sensitive component 1 and the lead 1-2. When performing the clamping action, the rising lifting plate 31 prompts the two side wall half clamps of the first side wall clamp 29 to clamp the side wall of the pressure-sensitive component 1 from both sides, and at the same time drives the two first lead half clamps of the first lead clamp 30 to clamp the lead 1-2.

[0042] The second pushing assembly 14 can drive the lifting plate 31 to descend. When the extrusion plate 32 cooperates with the horizontal slide groove 33 through the sliding block 35, it is ensured that the extrusion plate 32 and the lifting plate 31 can only slide relative to each other in the horizontal direction. When the lifting plate 31 is lifted or lowered, the extrusion plate 32 follows the lifting plate 31 to be lifted or lowered synchronously. At the same time, the extrusion plate 32 cooperates with the sliding block 35 and the inclined slide groove 34 to achieve the need to move in the horizontal direction while the extrusion plate 32 is lifting or lowering, thereby achieving the extension or retraction of the extrusion plate 32 while the lifting or lowering operation. Such a setting is conducive to accurately positioning the lead 1-2 in the horizontal direction when clamping the lead 1-2, thereby facilitating the first lead clamp 30 to accurately clamp the lead 1-2. The present invention can comprehensively and stably clamp the side wall and lead 1-2 of the pressure-sensitive component 1, and the synergy of multiple components enhances the stability and reliability of clamping and reduces the risk of welding errors.

[0043] The second pushing assembly 14 includes a second linear drive 36 and a material discharge push rod 37. The second linear drive 36 is vertically fixedly installed on the top of the first lifting frame 28. The output end of the second linear drive 36 is fixedly connected to the top end of the vertically arranged material discharge push rod 37. The bottom end of the material discharge push rod 37 is transmission connected to the lifting plate 31.

[0044] The second linear drive 36 is started, and its output end drives the vertically arranged material removal push rod 37 to move. The bottom end of the material removal push rod 37 is connected to the lifting plate 31 in transmission, thereby pushing the lifting plate 31 to move accordingly, so as to realize the synchronous clamping and loosening operations of the pressure sensing component 1 and the lead 1 2.

[0045] The clamping drive assembly 20 includes a third linear drive 38, a third fixed support frame 39, a first push rod 40, a first transmission slider 41 and a first slide rail 42. A clamping block 43 cooperating with the coil bearing seat 22 is provided on the side of the hinged pressure plate 19 close to the positioning support seat 7. The third fixed support frame 39 is fixedly installed on the frame 6 and is located on the side of the positioning support seat 7 away from the second support frame 18. The third linear drive 38 is hingedly set on the third fixed support frame 39. The first slide rail 42 is fixedly installed on the top of the hinged pressure plate 19. The length direction of the first slide rail 42 is perpendicular to the length direction of the positioning support seat 7. The first transmission slider 41 is slidably set on the first slide rail 42. One end of the first push rod 40 is fixedly connected to the third linear drive 38, and the other end of the first push rod 40 is hinged to the first transmission slider 41.

[0046] During the capacitive pen welding positioning process, the clamping drive assembly 20 starts to operate. The third linear drive 38 drives the first push rod 40 fixedly connected thereto to move, and then drives the first transmission slide 41 hinged thereto to slide on the first slide rail 42. Since the first slide rail 42 is fixedly mounted on the top of the hinged pressure plate 19, and its length direction is perpendicular to the length direction of the positioning support seat 7, the sliding of the first transmission slide 41 will drive the hinged pressure plate 19 to perform corresponding actions, and the circuit board 5 and the base can be firmly pressed in the positioning support seat 7 through the hinged pressure plate 19. A clamping block 43 that cooperates with the coil bearing seat 22 is provided on one side of the hinged pressure plate 19 close to the positioning support seat 7. Through the action of the hinged pressure plate 19, the clamping block 43 cooperates with the coil bearing seat 22 to achieve the clamping and positioning of the coil component 3, thereby ensuring the stability and reliability of the clamping action.

[0047] The second clamping assembly 21 includes a fourth linear drive 44, a second lead clamp 45, a first connecting rod 46 and a pushing device. One end of the second lead clamp 45 is hinged to the hinged pressure plate 19, and the side wall of the second lead clamp 45 is hinged to the first connecting rod 46. The second lead clamp 45 is provided with two groups and clamps two leads 4 respectively. Each second lead clamp 45 is composed of two second lead half clamps symmetrically arranged along the vertical direction. The first connecting rod 46 is transmission connected to the pushing device, and the pushing device is slidably arranged on the hinged pressure plate 19. The fourth linear drive 44 is fixedly installed on the hinged pressure plate 19, and the output end of the fourth linear drive 44 is transmission connected to the pushing device.

[0048] During the welding positioning operation of the capacitive pen, the second clamping assembly 21 is put into operation. The fourth linear drive 44 is started, and its output end acts on the pushing device. The pushing device slides on the hinged pressure plate 19, and drives the second lead clamping claw 45 to move through the transmission connection with the first connecting rod 46. One end of the second lead clamping claw 45 is hinged to the hinged pressure plate 19, and its side wall is hinged to the first connecting rod 46. Under the transmission action, the two second lead half clamping claws clamp the lead 2 4.

[0049] The pushing device includes a first push plate 47, a second push plate 48, a fourth spring 49 and a limit plate 50. A mounting plate 51 is fixedly provided on the hinged pressure plate 19. The length direction of the mounting plate 51 is consistent with the pushing direction of the pushing device. The output end of the fourth linear drive 44 is fixedly connected to the second push plate 48. The first push plate 47 and the second push plate 48 are both vertically arranged. The first push plate 47 is located on the side of the second push plate 48 away from the positioning support seat 7. The first push plate 47 is hinged to the side of the first connecting rod 46 away from the second lead clamp 45. The fourth spring 49 is horizontally arranged between the first push plate 47 and the second push plate 48. One end of the fourth spring 49 is fixedly connected to the first push plate 47, and the other end of the fourth spring 49 is fixedly connected to the second push plate 48. The limit plate 50 is fixedly arranged on the mounting plate 51. The limit plate 50 can contact the first push plate 47. The second push plate 48 is transmission-connected to the direction deflection assembly 23.

[0050] The output end of the fourth linear drive 44 drives the second push plate 48 to move. Since the fourth spring 49 is horizontally arranged between the first push plate 47 and the second push plate 48, the movement of the second push plate 48 will compress or stretch the fourth spring 49, thereby driving the first push plate 47 to move. The first push plate 47 is hinged to the side of the first connecting rod 46 away from the second lead clamp 45, thereby pushing the first connecting rod 46 to move, so that the second lead clamp 45 clamps the lead 2 4. A mounting plate 51 is fixedly provided on the hinged pressure plate 19, and the length direction of the mounting plate 51 is consistent with the pushing direction of the pushing device. During the pushing process, the limit plate 50 is fixedly provided on the mounting plate 51, which can contact with the first push plate 47, thereby limiting the moving range of the first push plate 47. At the same time, the second push plate 48 is transmission-connected to the direction deflection assembly 23 to cooperate in completing the clamping and position adjustment of the lead 2 4.

[0051] The interaction of each component can realize the precise control of the first push plate 47, thereby ensuring the precise clamping of the second lead clamping claw 45 on the lead 2 4. The existence of the limit plate 50 effectively limits the movement range of the first push plate 47, avoiding damage to the lead 2 4 caused by excessive pushing or too tight clamping. The second push plate 48 is connected to the direction deflection assembly 23 for linkage with the direction deflection assembly 23. The reasonable layout and connection mode of the components of the present invention make the pushing device compact in structure, occupy a small space, and facilitate the overall design and installation of the device.

[0052] The direction deflection assembly 23 includes a connecting column 52, a transmission column 53, a fifth spring 54, a second transmission slider 55 and a semi-arc clamping ring 56. A movable slide groove 57 is provided on the mounting plate 51. Each second lead half-clamp is provided with a connecting column 52 and a semi-arc clamping ring 56. The connecting column 52 is an elastic telescopic rod. One end of the connecting column 52 is connected to the second lead half-clamp, and the other end of the connecting column 52 is transmission-connected to the semi-arc clamping ring 56. The second transmission slider 55 is transmission-connected to the semi-arc clamping ring 56. The transmission column 53 is installed on the second transmission slider 55. The transmission column 53 slides with the mounting plate 51 through the movable slide groove 57. The second push plate 48 conflicts with the second transmission slider 55. The fifth spring 54 is arranged in the movable slide groove 57. The two ends of the fifth spring 54 are transmission-connected to the bottom of the groove and the transmission column 53 respectively. The movable slide groove 57 is gradually inclined from top to bottom toward the side close to the positioning support seat 7.

[0053] When the capacitive pen welding positioning device is in operation, the direction deflection assembly 23 starts to move. When the second push plate 48 moves and contacts the second transmission slide block 55, the second transmission slide block 55 is pushed to move. The transmission column 53 on the second transmission slide block 55 slides in the moving slide groove 57 of the mounting plate 51. Since the moving slide groove 57 is gradually tilted from top to bottom toward the side close to the positioning support seat 7, the movement of the second transmission slide block 55 will drive the semi-arc clamping ring 56 to move. The semi-arc clamping ring 56 is connected to the second lead half-claw through the connecting column 52. The connecting column 52 is an elastic telescopic rod. Driven by the semi-arc clamping ring 56, the second lead half-claw is deflected in direction, thereby adjusting the position of the lead 24. When the transmission column 53 moves, the fifth spring 54 is compressed or stretched, which plays a role of buffering and resetting.

[0054] A welding avoidance groove 58 is provided on the hinged pressure plate 19 .

[0055] Provide sufficient operating space for the welding tool to avoid interference with the welding process, effectively prevent the hinged pressure plate 19 from obstructing the line of sight and operating space during the welding process, and ensure the accuracy and efficiency of welding.

[0056] The overall working principle of the present invention is:

[0057] In the welding operation of the capacitive stylus, the bottom shell 10 and the circuit board 5 of the capacitive stylus are first placed horizontally on the positioning support seat 7, and the lifting plate 16 located below the first fixed support frame 11 begins to rise. The pressure-sensitive bearing seat 17 on the lifting plate 16 drives the pressure-sensitive component 1 carried thereon to move to the right below the first clamping assembly 15. The lifting plate 16 rises to squeeze the lifting plate 31 and realize the lifting of the lifting plate 31 with the cooperation of the second pushing assembly 14. At this time, the first side wall clamp 29 and the first lead clamp 30 are driven to clamp the pressure-sensitive component 1 and the lead 2. The pressure-sensitive component 1 is clamped by the first clamping assembly 15. The first pushing component 13 drives the sliding mounting frame 12 to slide smoothly along a predetermined track on the first fixed support frame 11, accurately driving the pressure-sensitive component 1 to move to the position to be welded, and the first clamping component 15 accurately clamps the pressure-sensitive component 1 and the lead 2 connected to the pressure-sensitive component 1 in turn, and can align the position of the lead 2 during the clamping process. After welding is completed, the pressure-sensitive component 1 needs to be pressed and installed into the corresponding position of the bottom shell 10. At this time, the second pushing component 14 starts to move, pushing the first clamping component 15 to release the clamping state, and can press the pressure-sensitive component 1 into the bottom shell 10.

[0058] The coil bearing seat 22 on the second support frame 18 located beside the positioning support seat 7 is ready to receive the coil component 3. The third linear actuator 38 drives the first push rod 40 fixedly connected thereto to move, thereby driving the first transmission slider 41 hinged thereto to slide on the first slide rail 42. Since the first slide rail 42 is fixedly mounted on the top of the hinged pressure plate 19, the circuit board 5 and the base can be firmly pressed into the positioning support seat 7 through the hinged pressure plate 19.

[0059] The output end of the fourth linear drive 44 drives the second push plate 48 to move. Since the fourth spring 49 is horizontally arranged between the first push plate 47 and the second push plate 48, the movement of the second push plate 48 will compress or stretch the fourth spring 49, thereby driving the first push plate 47 to move. The first push plate 47 is hinged to the side of the first connecting rod 46 away from the second lead clamp 45, thereby pushing the first connecting rod 46 to move, so that the second lead clamp 45 clamps the lead 2 4. A mounting plate 51 is fixedly provided on the hinged pressure plate 19, and the length direction of the mounting plate 51 is consistent with the pushing direction of the pushing device. During the pushing process, the limit plate 50 is fixedly provided on the mounting plate 51, which can contact with the first push plate 47, thereby limiting the moving range of the first push plate 47. At the same time, the second push plate 48 is transmission-connected to the direction deflection assembly 23 to cooperate in completing the clamping and position adjustment of the lead 2 4.

[0060] When the capacitive pen welding positioning device is in operation, the direction deflection assembly 23 starts to move. When the second push plate 48 moves and contacts the second transmission slide block 55, the second transmission slide block 55 is pushed to move. The transmission column 53 on the second transmission slide block 55 slides in the moving slide groove 57 of the mounting plate 51. Since the moving slide groove 57 is gradually tilted from top to bottom toward the side close to the positioning support seat 7, the movement of the second transmission slide block 55 will drive the semi-arc clamping ring 56 to move. The semi-arc clamping ring 56 is connected to the second lead half-claw through the connecting column 52. The connecting column 52 is an elastic telescopic rod. Driven by the semi-arc clamping ring 56, the second lead half-claw is deflected in direction, thereby adjusting the position of the lead 24. When the transmission column 53 moves, the fifth spring 54 is compressed or stretched, which plays a role of buffering and resetting.

[0061] The above embodiments only express one or several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A capacitive pen welding positioning device, used for welding a pressure sensing component (1) and a coil component (3) in a capacitive pen to a circuit board (5) of a capacitive pen bottom shell (10), characterized in that: The invention comprises a frame (6) and a positioning support seat (7) mounted on the frame (6), a pressure-sensitive positioning mechanism (8) and a coil positioning mechanism (9); a bottom shell (10) of a capacitive pen is horizontally mounted on the positioning support seat (7); the pressure-sensitive positioning mechanism (8) is located at one end of the positioning support seat (7) along the length direction; the coil positioning mechanism (9) is located on the side of the positioning support seat (7); the pressure-sensitive positioning mechanism (8) comprises a first fixed support frame (11), a sliding mounting frame (12), a first pushing component (13), a second pushing component (14) and a first clamping component (15); the first fixed support frame (11) is fixedly connected to the frame (6); the sliding mounting frame (12) is connected to the first fixed support frame (11); The support frame (11) is slidably connected, the first pushing component (13) is fixedly mounted on the first fixed support frame (11) and is transmission-connected to the sliding mounting frame (12), a lifting plate (16) is provided below the first fixed support frame (11), a pressure-sensitive bearing seat (17) is provided on the lifting plate (16), the second pushing component (14) and the first clamping component (15) are both arranged on the sliding mounting frame (12), the second pushing component (14) is transmission-connected to the first clamping component (15), and the first clamping component (15) comprises a first side wall clamping jaw (29) for clamping the pressure-sensitive component (1) and a first lead clamping jaw (30) for clamping a lead wire (2) connected to the pressure-sensitive component (1).

2. A capacitive pen welding positioning device according to claim 1, characterized in that: The coil positioning mechanism (9) comprises a second support frame (18), an articulated pressure plate (19), a pressing drive assembly (20), a second clamping assembly (21), a coil bearing seat (22) and a direction deflection assembly (23), wherein the second support frame (18) is arranged beside the positioning support seat (7), the coil bearing seat (22) is arranged on the second support frame (18), the articulated pressure plate (19) is located above the positioning support seat (7), and the articulated pressure plate (19) is away from the positioning support seat (7). One side of the second support frame (18) is hinged, and the clamping drive assembly (20) is installed on the frame (6). The output end of the clamping drive assembly (20) is transmission-connected to the hinged pressure plate (19). The second clamping assembly (21) and the direction deflection assembly (23) are both arranged on the hinged pressure plate (19). The output end of the second clamping assembly (21) is transmission-connected to the direction deflection assembly (23). The second clamping assembly (21) is used to clamp the lead wire 2 (4) connected to the coil component (3).

3. A capacitive pen welding positioning device according to claim 1, characterized in that: The first pushing assembly (13) comprises a first spring (24), a second spring (25), a first linear drive (26), a first hinge rod (27) and a first lifting frame (28); the top end of the first fixed support frame (11) is horizontally arranged and its length direction is consistent with the length direction of the positioning support seat (7); the sliding mounting frame (12) is slidably connected to the first fixed support frame (11); the two ends of the first spring (24) are respectively fixedly connected to the side wall of the first fixed support frame (11) and the side wall of the sliding mounting frame (12); the first lifting frame (28) is horizontally arranged and the first lifting frame (28) is connected to the first fixed support frame (11). The sliding mounting frame (12) is vertically slidably matched, the two ends of the second spring (25) are respectively fixedly connected to the sliding mounting frame (12) and the first lifting frame (28), the first linear drive (26) is fixedly mounted on the side wall of the first fixed support frame (11), one end of the first hinged rod (27) is hinged to the output end of the first linear drive (26), the other end of the first hinged rod (27) is hinged to the top of the first lifting frame (28), the second pushing assembly (14) is arranged at the top of the first lifting frame (28), and the first clamping assembly (15) is arranged at the bottom of the first lifting frame (28).

4. A capacitive pen welding positioning device according to claim 3, characterized in that: The first clamping assembly (15) further comprises a lifting plate (31) and a pressing plate (32); the first side wall clamp (29) is composed of two side wall half clamps; the first lead clamp (30) is provided with two groups and is respectively located above the lead wires (2) on both sides of the pressure sensing element (1); the first lead clamp (30) is composed of two first lead half clamps symmetrically arranged along the vertical direction; one end of the first side wall clamp (29) is hinged to the first lifting frame (28); the lifting plate (31) is horizontally arranged directly below the first lifting frame (28) and is slidably connected to the first lifting frame (28) in the vertical direction; the middle part of the first side wall clamp (29) is transmission-connected to the lifting plate (31); The top end of the first lead clamp (30) is hinged to the first lifting frame (28), the other end of the first lead clamp (30) is transmission-connected to the lifting plate (31), the pressing plate (32) is slidingly connected to the lifting plate (31), the lifting plate (31) is provided with a horizontal slide groove (33), the first lifting frame (28) is provided with an inclined slide groove (34), the inclined slide groove (34) is gradually offset from top to bottom toward the side close to the circuit board (5), the pressing plate (32) is transmission-connected to the lifting plate (31) through a sliding block (35) and the horizontal slide groove (33), and the pressing plate (32) is transmission-connected to the first lifting frame (28) through a sliding block (35) and the inclined slide groove (34).

5. A capacitive pen welding positioning device according to claim 4, characterized in that: The second pushing assembly (14) comprises a second linear drive (36) and a material discharge push rod (37). The second linear drive (36) is vertically fixedly installed on the top of the first lifting frame (28). The output end of the second linear drive (36) is fixedly connected to the top end of the vertically arranged material discharge push rod (37). The bottom end of the material discharge push rod (37) is transmission-connected to the lifting plate (31).

6. A capacitive pen welding positioning device according to claim 5, characterized in that: The clamping drive assembly (20) comprises a third linear drive (38), a third fixed support frame (39), a first push rod (40), a first transmission slide block (41) and a first slide rail (42); a clamping block (43) cooperating with the coil bearing seat (22) is provided on the side of the hinged pressure plate (19) close to the positioning support seat (7); the third fixed support frame (39) is fixedly mounted on the frame (6) and is located on the side of the positioning support seat (7) away from the second support frame (18); the third linear drive (38) is hingedly mounted on the third fixed support frame (39); the first slide rail (42) is fixedly mounted on the top of the hinged pressure plate (19); the length direction of the first slide rail (42) is perpendicular to the length direction of the positioning support seat (7); the first transmission slide block (41) is slidably mounted on the first slide rail (42); one end of the first push rod (40) is fixedly connected to the third linear drive (38); and the other end of the first push rod (40) is hingedly mounted to the first transmission slide block (41).

7. The capacitive pen welding positioning device according to claim 2, characterized in that: The second clamping assembly (21) comprises a fourth linear drive (44), a second lead wire clamping jaw (45), a first connecting rod (46) and a pushing device. One end of the second lead wire clamping jaw (45) is hinged to the hinged pressure plate (19). The side wall of the second lead wire clamping jaw (45) is hinged to the first connecting rod (46). The second lead wire clamping jaw (45) is provided with two groups and clamps two lead wires (4) respectively. Each second lead wire clamping jaw (45) is composed of two second lead wire half clamping jaws symmetrically arranged along the vertical direction. The first connecting rod (46) is transmission-connected to the pushing device. The pushing device is slidably arranged on the hinged pressure plate (19). The fourth linear drive (44) is fixedly mounted on the hinged pressure plate (19). The output end of the fourth linear drive (44) is transmission-connected to the pushing device.

8. The capacitive pen welding positioning device according to claim 7, characterized in that: The pushing device comprises a first pushing plate (47), a second pushing plate (48), a fourth spring (49) and a limiting plate (50); a mounting plate (51) is fixedly provided on the hinged pressure plate (19); the length direction of the mounting plate (51) is consistent with the pushing direction of the pushing device; the output end of the fourth linear drive (44) is fixedly connected to the second pushing plate (48); the first pushing plate (47) and the second pushing plate (48) are both vertically arranged; the first pushing plate (47) is located on a side of the second pushing plate (48) away from the positioning support seat (7); the first pushing plate (4 7) is hinged to the side of the first connecting rod (46) away from the second lead clamp (45), the fourth spring (49) is horizontally arranged between the first push plate (47) and the second push plate (48), one end of the fourth spring (49) is fixedly connected to the first push plate (47), the other end of the fourth spring (49) is fixedly connected to the second push plate (48), the limit plate (50) is fixedly arranged on the mounting plate (51), the limit plate (50) can contact with the first push plate (47), and the second push plate (48) is transmission-connected to the direction deflection assembly (23).

9. The capacitive pen welding positioning device according to claim 8, characterized in that: The direction deflection assembly (23) comprises a connecting column (52), a transmission column (53), a fifth spring (54), a second transmission slider (55) and a semi-arc clamping ring (56); a movable slide groove (57) is provided on the mounting plate (51); each second lead wire half clamping jaw is provided with a connecting column (52) and a semi-arc clamping ring (56); the connecting column (52) is an elastic telescopic rod; one end of the connecting column (52) is connected to the second lead wire half clamping jaw; the other end of the connecting column (52) is connected to the semi-arc clamping ring (56) in a transmission manner; the second transmission The slider (55) is transmission-connected with the semi-arc clamping ring (56), the transmission column (53) is mounted on the second transmission slider (55), the transmission column (53) is slidably matched with the mounting plate (51) through the movable slide groove (57), the second push plate (48) is in contact with the second transmission slider (55), the fifth spring (54) is arranged in the movable slide groove (57), the two ends of the fifth spring (54) are transmission-connected with the groove bottom and the transmission column (53) respectively, and the movable slide groove (57) is gradually inclined from top to bottom toward a side close to the positioning support seat (7).

10. The capacitive pen welding positioning device according to claim 6, characterized in that: A welding avoidance groove (58) is provided on the hinged pressing plate (19).

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