A fully automatic gluing and pressing device for the nose cone of an active stylus pen

Abstract

The present invention provides a fully automatic gluing and pressing device for the nose cone of an active touch pen, comprising a body, a gluing module, a pressing module, and a curing module; the pen tip clamping assembly of the pressing module comprises a movable bracket seat, a clamping bracket rotatably connected to the bracket seat, and a three-claw cylinder provided on the clamping bracket. When the clamping bracket rotates, the gluing needle of the gluing module can evenly apply the glue on the pen tip clamped by the three-claw cylinder along the circumferential direction. The operation is convenient, the gluing effect is good, and the safety is good. The pen tip loading assembly of the pressing module comprises a pen tip seat with a locating pin on the side and a floating pressure head for correcting and pressing the pen tip. When loading the pen tip, the locating pin and the locating hole can cooperate to ensure that the pen tip is inserted in a set posture and the alignment is accurate; the axis of the nose cone placement groove on the nose cone seat of the nose cone clamping assembly coincides with the axis of the three-claw cylinder. After the gluing is completed, the support seat can be moved to squeeze the pen tip into the nose cone. The pressing consistency is good and the yield rate is high.

Description

Technical Field

[0001] The invention belongs to the technical field of stylus pen production, and in particular relates to a fully automatic gluing and pressing device for a nose cone of an active stylus pen. Background Art

[0002] A stylus is a commonly used input component for touch-screen devices. It is used to replace fingers for precise clicking, drawing lines, and other operations on the touch screen. Existing styluses are roughly divided into two categories: passive styluses and active styluses. Passive styluses cannot interact with touch-screen devices and can only simulate the clicking action of fingers. They have fewer functions. Active styluses can interact with touch-screen devices and have more powerful functions when used. Most mainstream touch-screen devices on the market (such as tablets, iPads, etc.) are equipped with active styluses.

[0003] To achieve information interaction with touch-screen devices, most active styluses include a pen tip with HSG function, a PCB board that is inserted into the pen tip and extends from the tail of the pen tip for signal transmission, and a nose cone that is mounted on the tail of the pen tip for connecting to the pen body. These components are relatively small in size. Generally speaking, the pen tip is cylindrical, with a length not exceeding 16mm and a diameter not exceeding 2.5mm; the PCB board is long and has a length not exceeding 10mm, a thickness not exceeding 0.8mm, and a width not exceeding 1.6mm; the length of the nose cone does not exceed 12mm, and the diameter does not exceed 8mm. To ensure the assembly effect of the pen tip and the nose cone, when mounting, it is necessary to first apply glue circumferentially to the corresponding position of the pen tip, and then squeeze it into the nose cone in a set posture for press-fit bonding. The existing production method is usually manual: first hold the pen tip in one hand and the glue gun in the other hand, and achieve 360-degree glue application by rotating the pen tip and pushing the glue gun to discharge glue. After the glue application is completed, the pen tip is squeezed backward into the nose cone for press-fit bonding. This method has at least the following problems:

[0004] 1. The handheld gluing method is inconvenient to operate, the gluing position and amount are difficult to accurately control, and the gluing effect is poor.

[0005] 2. Low efficiency and long time consumption. The volatilization of organic solvents in the glue will affect the health of operators and pose a safety hazard.

[0006] 3. The PCB board extending from the end of the pen tip is a cantilever beam structure, which is easily warped by touch during movement and picking up. When the degree of warping is large, it will affect the operation of squeezing the pen tip into the nose cone, making it difficult to accurately align the pen tip and nose cone.

[0007] 4. The speed, force and posture control when the pen tip is squeezed into the nose cone are all based on human observation. The position of the pen tip and the nose cone in the axial direction and / or circumferential direction is prone to deviation, resulting in unqualified products, poor consistency and low yield. Summary of the Invention

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a fully automatic gluing and pressing device for the nose cone of an active stylus pen, which is easy to operate, has good gluing effect, good safety, precise positioning, good consistency and high yield.

[0009] To achieve the above-mentioned purpose, the technical solution provided by the present invention is a fully automatic gluing and pressing device for the nose cone of an active stylus pen, comprising:

[0010] A body, the body comprising a rectangular base plate extending in a horizontal direction and a cover shell provided on the upper and lower surfaces of the base plate;

[0011] A gluing module, comprising a vertically arranged electric gluing needle, the gluing needle being movable forward and backward, up and down, and left and right above the substrate;

[0012] A press-fitting module, comprising a nib clamping assembly, a nib loading assembly, and a nose cone clamping assembly;

[0013] The pen tip clamping assembly includes a bracket seat, a clamping bracket, a three-claw cylinder, and a buffer unit, the bracket seat is connected to the base plate movably left and right, the clamping bracket is rotatably connected to the right end portion of the bracket seat, and the rotation axis of the clamping bracket extends horizontally along the left and right directions, the three-claw cylinder includes a cylinder body and a clamping claw, the cylinder body is connected to the right end portion of the clamping bracket movably left and right through the buffer unit, and the clamping claw is openably and closably embedded in the right end surface of the cylinder body, when the clamping bracket rotates, the glue applying needle can evenly apply glue on the pen tip clamped by the clamping claw along the circumferential direction, the buffer unit includes a buffer spring and a pressure sensor arranged in sequence from left to right, and when the detection value of the pressure sensor exceeds a set value, the bracket seat stops moving;

[0014] The pen tip feeding assembly includes a pen tip holder with a pen tip placement groove on its upper end surface, and a floating pressure head for correcting the pen tip posture and pressing the pen tip tightly into the pen tip placement groove; a positioning pin is provided on the left side of the pen tip holder, and the positioning pin corresponds to the positioning hole on the right end surface of the cylinder body; the length of the positioning pin is greater than the height of the pen tip protruding from the left side of the pen tip holder; there are at least two positioning pins; when the pen tip feeding assembly approaches the three-jaw cylinder, the positioning pin is inserted into the positioning hole, so that the pen tip maintains the set posture and is inserted into the cavity between the clamping jaws; the buffer spring contracts to prevent the pen tip from being over-inserted; when the pen tip feeding assembly moves away from the three-jaw cylinder, the positioning pin moves in the positioning hole to prevent the pen tip feeding assembly from touching the right end portion of the pen tip;

[0015] The nose cone clamping assembly includes a nose cone seat with a nose cone placement groove on its upper surface, a nose cone pressure plate for pressing the nose cone from top to bottom into the nose cone placement groove, and a toggle clamp for pressing the nose cone in the nose cone placement groove from right to left. The nose cone seat is arranged above the base plate and is located on the right side of the pen tip clamping assembly. The axis of the nose cone placement groove coincides with the axis of the three-claw cylinder. When the bracket seat moves leftward to insert the pen tip clamped by the clamp into the nose cone in the nose cone placement groove, the buffer spring contracts to prevent the pen tip from being over-inserted.

[0016] The curing module includes a curing bracket arranged on the substrate and a light curing unit arranged on the curing bracket. The light curing unit can be arranged above the substrate so as to be movable up and down, left and right, and forward and backward. The light emitted by the light curing unit is aligned with the nose cone in the nose cone placement groove.

[0017] Preferably, the cover shell includes an upper cover shell covering the upper surface of the substrate and a lower cover shell covering the lower surface of the substrate, the front side of the upper cover shell is provided with a window for feeding and discharging materials, the inner walls on both sides of the window are provided with a corresponding type grating ruler, the front side of the lower cover shell is provided with an inclined platform extending forward and downward, and a plurality of control buttons are provided on the inclined platform.

[0018] Further preferably, the inner wall of the upper cover shell is connected to a baffle door for opening and closing the window, and the baffle door is arranged to be movable up and down.

[0019] Further preferably, the left, right and rear side surfaces of the upper cover shell are provided with openable inspection windows, and the top surface of the upper cover shell is provided with an indicator light and an exhaust port.

[0020] Further preferably, handles are provided on the left and right sides of the base plate, and a roller is connected to the bottom of the lower cover.

[0021] Preferably, the gluing module also includes a gluing bracket arranged on the substrate and located behind the pressing module, a three-coordinate workbench arranged on the gluing bracket for driving the gluing needle to move, an alignment component for correcting the position of the gluing needle, and a waste glue tank for receiving waste glue discharged by the gluing needle. The alignment component and the waste glue tank are arranged in sequence along the left and right directions and are located between the gluing bracket and the pressing module.

[0022] Further preferably, the alignment component includes an alignment plate extending in the horizontal direction, a square alignment hole opened in the center of the alignment plate, and an optical fiber sensor for detecting the position of the glue coating needle. There are at least two optical fiber sensors, and the optical fiber heads of the two optical fiber sensors are passed through the alignment plate and exposed from two adjacent side walls of the square alignment hole. The light emitted by the two optical fiber heads intersects in the center of the square alignment hole to form a detection point. When the glue coating needle extends into the square alignment hole and is at the detection point, the two groups of optical fiber sensors are triggered, and the glue coating needle is at the origin position.

[0023] Preferably, the pen tip clamping assembly also includes a first driving unit for driving the bracket seat to move left and right and a second driving unit for driving the clamping bracket to rotate, the first driving unit includes a first servo motor arranged under the bracket seat, the controller of the first servo motor is electrically connected to the pressure sensor, the second driving unit includes a second servo motor, and the second servo motor and the clamping bracket are respectively arranged on the left and right sides of the bracket seat.

[0024] Further preferably, the clamping bracket is connected to the bracket seat through a first connecting plate and a second connecting plate, the first connecting plate can move up and down relative to the bracket seat, and the second connecting plate can move forward and backward relative to the first connecting plate.

[0025] Preferably, the three-claw cylinder is connected to the pressure sensor via a third connecting plate and a fourth connecting plate, the third connecting plate can move forward and backward relative to the pressure sensor, and the fourth connecting plate can move up and down relative to the third connecting plate.

[0026] Preferably, the right end surface of the clamping jaw is flush with the right end surface of the cylinder body.

[0027] Preferably, the upper surface of the pen tip holder is provided with a receiving groove with a U-shaped cross-section, and the pen tip placement groove is provided at the bottom of the receiving groove. The pen tip placement groove includes a first groove body with a V-shaped cross-section and a second groove body with a rectangular cross-section. The first groove body runs through the left side of the pen tip holder. The first groove body is used to place the cylindrical part at the left end of the pen tip, and the second groove body is used to place the PCB board at the right end of the pen tip.

[0028] Further preferably, the pen tip loading assembly also includes a cover plate and a cover plate locking plate, the cover plate including a lower cover plate arranged above the pen tip holder and covering the accommodating slot, a cover plate spring is provided between the lower cover plate and the pen tip holder to drive the lower cover plate to move upward, the cover plate locking plate is rotatably connected to the front and rear sides of the pen tip holder, the upper end portion of the cover plate locking plate is provided with a cover plate hook, the cover plate hook corresponds to the cover plate slot at the edge of the lower cover plate, when the lower cover plate moves downward so that the cover plate slot is lower than the cover plate hook, the cover plate locking plate rotates so that the cover plate hook is hooked on the cover plate slot, thereby locking the relative position of the lower cover plate and the pen tip holder.

[0029] Further preferably, a cover locking spring is provided between the cover locking plate and the pen tip holder, the cover locking spring is located below the cover locking plate rotation axis, and the two ends of the cover locking spring respectively press against the cover locking plate and the pen tip holder.

[0030] Further preferably, a vertical through slot for passing the floating pressure head is provided on the lower cover plate, and the cover plate also includes an upper cover plate connected above the lower cover plate and covering the vertical through slot, and a floating spring is provided between the upper cover plate and the floating pressure head to drive the floating pressure head to move downward.

[0031] Further preferably, the vertical through-groove includes a first through-groove located above the first groove body and a second through-groove located above the second groove body, the floating pressure head includes a first pressure head that can be moved up and down through the first through-groove and a second pressure head that can be moved up and down through the second through-groove, the lower surface of the first pressure head is provided with an arc surface matching the cylindrical portion, the lower surface of the second pressure head is provided with a flat pressing surface matching the PCB board, and the height difference between the highest point of the arc surface and the flat pressing surface is greater than or equal to the height difference between the highest point of the cylindrical portion and the upper surface of the PCB board.

[0032] Preferably, the nose cone clamping assembly also includes a support platform for setting the nose cone seat and the elbow clamp, the support platform is set on the base plate, the support platform is plugged into the nose cone seat, and a through groove is opened on the support platform for exposing the operating rod and the tightening rod of the elbow clamp.

[0033] Preferably, the nose cone pressure plate is in the shape of an elongated strip and extends in the front-to-back direction, the front end portion of the nose cone pressure plate is rotatably connected to the nose cone seat, and a soft pad corresponding to the nose cone placement groove is provided in the middle portion of the lower surface of the nose cone pressure plate.

[0034] Further preferably, a torsion spring is provided between the front end portion of the nose cone pressure plate and the nose cone seat, and the torsion spring has a tendency to drive the nose cone pressure plate to rotate upward; the nose cone seat is also provided with a pressure plate locking plate for locking the nose cone pressure plate, and the pressure plate locking plate is movably connected to the nose cone seat and is located behind the nose cone pressure plate.

[0035] Preferably, a position adjustment column is provided on the left end surface of the nose cone seat, and the position adjustment column is staggered with the positioning hole on the right end surface of the cylinder body.

[0036] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0037] 1. The clamping claw is used to hold the pen tip and rotate it, and then the electric glue needle is used to apply glue. There is no need to hold the glue by hand, which is easy to operate. The gluing position and amount can be accurately controlled, and the gluing effect is good.

[0038] 2. The gluing efficiency is high and the time consumption is short. The volatilization of organic solvents has little harm to the health of operators and is safe.

[0039] 3. By setting a floating pressure head to correct the posture of the pen tip and press it tightly in the pen tip placement slot, and then guiding it through the cooperation of the positioning pin set on the left side of the pen tip holder and the positioning hole on the end face of the cylinder body, it can ensure that the pen tip is inserted into the cavity between the clamping jaws in the set posture; then the buffer spring is contracted to avoid excessive insertion of the pen tip, and the insertion depth can be ensured to be the set depth; when the pen tip loading assembly is detached, the positioning pin can also be used to move in the positioning hole for secondary guidance to prevent the pen tip loading assembly from touching the right end of the pen tip, avoid damage to the pen tip and influence on the pen tip posture, and ensure that the pen tip nose cone is accurately positioned.

[0040] 4. After the glue is applied, the pen tip can be squeezed into the nose cone by moving the support seat to the right to complete the press-fitting operation. The speed of squeezing in can be controlled, and the force can be controlled by the buffer spring. The posture of the pen tip and the nose cone are in a locked state during the press-fitting process, and the consistency after press-fitting is good and the yield rate is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a three-dimensional schematic diagram of a preferred embodiment of the present invention.

[0042] Figure 2 yes Figure 1 A three-dimensional schematic diagram after the upper cover and the lower cover are hidden.

[0043] Figure 3 yes Figure 2 The top view schematic diagram hides the pen tip loading component, gluing module and curing module.

[0044] Figure 4 yes Figure 3Schematic cross-sectional view in the AA direction.

[0045] Figure 5 yes Figure 3 Schematic cross-sectional view in the BB direction.

[0046] Figure 6 yes Figure 2 A partial enlarged schematic diagram of point C in the middle.

[0047] Figure 7 yes Figure 2 A three-dimensional enlarged schematic diagram of the middle pen tip loading assembly.

[0048] Figure 8 yes Figure 7 Schematic top view of .

[0049] Figure 9 yes Figure 8 Schematic cross-sectional view in the DD direction.

[0050] Figure 10 yes Figure 8 Schematic cross-sectional view in the EE direction.

[0051] Figure 11 yes Figure 8 Schematic cross-sectional view in the FF direction.

[0052] Figure 12 yes Figure 2 A magnified perspective diagram of the mid-nose cone clamping assembly.

[0053] Figure 13 yes Figure 12 A magnified 3D diagram with the support platform hidden.

[0054] Figure 14 、 Figure 15 yes Figure 13 A magnified 3D diagram with the elbow clamp removed.

[0055] Figure 16 yes Figure 1 An enlarged cross-sectional view of the middle upper cover.

[0056] Among them: 11. Baseplate; 111. Handle; 12. Upper cover; 121. Window; 122. Through-beam grating ruler; 123. Baffle door; 124. Inspection window; 125. Indicator light; 126. Exhaust port; 13. Lower cover; 131. Inclined platform; 132. Control button; 133. Roller; 21. Glue applicator; 22. Glue applicator bracket; 23. Three-coordinate worktable; 24. Alignment assembly; 241. Alignment plate; 242. Square alignment hole; 243. Fiber optic head; 25. Waste glue tank; 31. Bracket; 32. Clamping bracket ; 321. First connecting plate; 322. Second connecting plate; 33. Three-claw cylinder; 331. Cylinder body; 332. Clamping jaws; 333. Positioning hole; 334. Third connecting plate; 335. Fourth connecting plate; 336. Second slideway pair; 34. Buffer unit; 341. Buffer spring; 342. Pressure sensor; 351. First servo motor; 352. Screw pair; 353. First slideway pair; 361. Second servo motor; 362. Reducer; 363. Slot switch; 40. Pen tip loading assembly; 41. Pen tip holder; 4 11. First slot; 412. Second slot; 413. Positioning pin; 414. Receiving slot; 421. First pressure head; 422. Second pressure head; 423. Arc surface; 424. Flat pressure surface; 425. First floating spring; 426. Second floating spring; 43. Lower cover; 431. Cover spring; 432. Cover slot; 433. First through-slot; 434. Second through-slot; 44. Upper cover; 45. Cover locking plate; 451. Cover hook; 452. Cover locking spring; 50. Nose cone clamping assembly; 51. Nose cone seat; 511. Nose cone placement slot; 512. Position adjustment column; 513. Pressure plate locking plate; 52. Nose cone pressure plate; 521. Cushion; 522. Torsion spring; 53. Elbow clamp; 531. Operating lever; 532. Clamping rod; 54. Support platform; 541. Through slot; 61. Curing bracket; 611. Support seat plate; 612. First rod; 613. First clamping block; 614. Second rod; 615. Second clamping block; 62. Light curing unit; 70. Pen tip; 71. Cylindrical part; 72. PCB board; 80. Nose cone. DETAILED DESCRIPTION

[0057] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art.

[0058] The up and down, left and right directions described in the present invention are Figure 4 The up and down, left and right directions in the present invention are the front and back directions. Figure 3 The down-up direction in .

[0059] like Figures 1 to 16As shown, the present invention provides an automatic gluing and pressing device for the nose cone of an active touch pen, comprising: a machine body, a gluing module, a pressing module, and a curing module; specifically, the machine body comprises a rectangular substrate 11 extending in the horizontal direction, and a cover shell provided on the upper and lower surfaces of the substrate 11; the gluing module comprises a vertically arranged electric gluing needle 21, the gluing needle 21 comprises a constant pressure syringe and an electrically controlled jet dispensing valve, and the gluing needle 21 is movable forward and backward, up and down, and left and right and is arranged above the substrate 11; the pressing module comprises a pen tip clamping assembly, a pen tip loading assembly 40, and a nose cone clamping assembly 50; the pen tip clamping assembly comprises a bracket seat 31, a clamping bracket 32, The three-claw cylinder 33, the buffer unit 34, the bracket seat 31 can be connected to the base plate 11 so as to be movable left and right, the clamping bracket 32 ​​can be rotatably connected to the right end of the bracket seat 31, and the rotation axis of the clamping bracket 32 ​​extends horizontally in the left and right directions. The three-claw cylinder 33 includes a cylinder body 331 and a clamping claw 332. The cylinder body 331 is connected to the right end of the clamping bracket 32 ​​by the buffer unit 34. For the convenience of guiding, the clamping bracket 32 ​​is further provided with a second slide pair 336 extending in the left and right directions. The cylinder body 331 is connected to the slider of the second slide pair 336, and the clamping claw 332 is openably and closably embedded in the cylinder body 331. On the right end face, when the clamping bracket 32 ​​rotates, the glue-applying needle 21 can evenly apply the glue along the circumference to the pen tip 70 clamped by the clamping claw 332. The buffer unit 34 includes a buffer spring 341 and a pressure sensor 342 arranged from left to right. When the detection value of the pressure sensor 342 exceeds the set value (40N), the bracket seat 31 stops moving; the pen tip loading assembly 40 includes a pen tip holder 41 with a pen tip placement groove on the upper end face, and a floating pressure head for correcting the posture of the pen tip 70 and pressing the pen tip 70 tightly into the pen tip placement groove. A positioning pin 413 is provided on the left side of the pen tip holder 41, and the positioning pin 413 is aligned with the right end face of the cylinder body 331. The positioning pin 413 corresponds to the positioning hole 333 of the pen tip 70. The length of the positioning pin 413 is greater than the height of the cylindrical portion 71 of the pen tip 70 protruding from the left side of the pen tip base 41. There are at least two positioning pins 413. When the pen tip loading assembly 40 approaches the three-jaw cylinder 33, the positioning pin 413 is inserted into the positioning hole 333, so that the pen tip 70 maintains a set posture and is inserted into the cavity between the clamping jaws 332. The buffer spring 341 contracts to prevent the pen tip 70 from being over-inserted. When the pen tip loading assembly 40 moves away from the three-jaw cylinder 332, the positioning pin 413 moves in the positioning hole 333 to prevent the pen tip loading assembly 40 from touching the PCB board 72 at the right end of the pen tip 70.The nose cone clamping assembly 50 includes a nose cone seat 51 with a nose cone placement groove 511 on the upper surface, a nose cone pressure plate 52 for pressing the nose cone 80 from top to bottom in the nose cone placement groove 511, and an elbow clamp 53 for pressing the nose cone 80 in the nose cone placement groove 511 from right to left. The nose cone seat 51 is arranged above the substrate 11 and is located on the right side of the pen tip clamping assembly. The axis of the nose cone placement groove 511 coincides with the axis of the three-claw cylinder 33. When the bracket seat 31 moves to the left to insert the pen tip 70 clamped by the clamping claw 332 into the nose cone 80 in the nose cone placement groove 511, the buffer spring 341 contracts to prevent the pen tip 70 from being over-inserted; the curing module includes a curing bracket 61 arranged on the substrate 11 and a light curing bracket 61 arranged on the curing bracket 61 The curing unit 62 is positioned above the base plate 11 and is movable vertically, horizontally, and forward and backward. The light emitted by the curing unit 62 is directed toward the nose cone 80 within the nose cone placement slot 511. The curing bracket 61 includes a support base plate 611 connected to the base plate 11, a first rod 612 connected to the upper end of the support base plate 611 and extending horizontally forward, a first clamping block 613 rotatably and axially movably mounted on the first rod 612, a second rod 614 extending through the first clamping block 613, and a second clamping block 615 rotatably and axially movably mounted on the second rod 614. The second rod 614 is perpendicular to the first rod 612. The curing unit 62 is a Phoenix TK35 LED lamp.

[0060] The benefits of this setting are:

[0061] 1. No need to hold the glue by hand, easy to operate, the gluing position and amount can be accurately controlled, and the gluing effect is good.

[0062] 2. The gluing efficiency is high and the time consumption is short. The volatilization of organic solvents has little harm to the health of operators and is safe.

[0063] 3. It can ensure that the pen tip is inserted into the cavity between the clamping jaws in a set posture and ensure that the insertion depth is the set depth. It can also prevent the pen tip loading component from touching the right end of the pen tip during the detachment process, avoid damaging the pen tip and affecting the pen tip posture, and ensure that the pen tip nose cone is accurately positioned.

[0064] 4. After the glue is applied, the pen tip can be squeezed into the nose cone by moving the support seat to the right to complete the press-fitting operation. The speed of squeezing in can be controlled, and the force can be controlled by the buffer spring. The posture of the pen tip and the nose cone are in a locked state during the press-fitting process, and the consistency after press-fitting is good and the yield rate is high.

[0065] In this embodiment, the cover shell includes an upper cover shell 12 that is covered on the upper surface of the substrate 11 and a lower cover shell 13 that is covered on the lower surface of the substrate 11; a window 121 for feeding and discharging materials is opened on the front side of the upper cover shell 12, and a beam type grating ruler 122 is provided on the inner wall of the window 121. The inner wall of the upper cover shell 12 is connected to a baffle door 123 for opening and closing the window 121, and the baffle door 123 can be moved up and down. The inner wall of the upper cover shell 12 is also connected to a baffle for driving the baffle. The panel door 123 is moved up and down by an opening and closing cylinder. The left, right and rear sides of the upper cover shell 12 are provided with openable inspection windows 124. The top surface of the upper cover shell 12 is provided with an indicator light 125 and an exhaust port 126. The front side of the lower cover shell 13 is provided with a ramp 131 extending forward and downward, and a plurality of control buttons 132 are provided on the ramp 131. The bottom of the lower cover shell 13 is connected to a roller 133. In order to facilitate pushing and pulling, the left and right sides of the base plate 11 are also provided with handles 111.

[0066] In this embodiment, the glue coating module also includes a glue coating bracket 22 arranged on the substrate 11 and located behind the pressing module, a three-coordinate workbench 23 arranged on the glue coating bracket 22 for driving the glue coating needle 21 to move (up and down, left and right, and front and back), an alignment component 24 for correcting the position of the glue coating needle 21, and a waste glue tank 25 for receiving waste glue discharged by the glue coating needle 21. The alignment component 24 and the waste glue tank 25 are arranged in sequence along the left and right directions and are located between the glue coating bracket 22 and the pressing module. Furthermore, the alignment component 24 includes an alignment plate 241 extending in the horizontal direction, a square alignment hole 242 opened in the center of the alignment plate 241, and a positioning hole 242 for detecting the glue coating needle 21. There are at least two optical fiber sensors (not shown in the figure) for the position of the glue needle 21. The optical fiber heads 243 of these two optical fiber sensors are inserted into the alignment plate 241 and exposed from the two adjacent side walls of the square alignment hole 242. The light emitted by the two optical fiber heads 243 cross vertically at the center of the square alignment hole 242 to form a detection point. When the glue needle 21 is inserted into the square alignment hole 242 and is at the detection point, both sets of optical fiber sensors are triggered, indicating that the glue needle 21 is at the origin position. When the glue needle 21 is inserted into the square alignment hole 242 but is not at the detection point, the glue needle 21 is moved to the detection point by manually controlling the movement of the three-coordinate workbench 23.

[0067] In this embodiment, the pen tip clamping assembly also includes a first drive unit for driving the bracket seat 31 to move left and right and a second drive unit for driving the clamping bracket 32 ​​to rotate. The first drive unit includes a first servo motor 351, a screw pair 352, and a first slide rail pair 353 arranged below the bracket seat 31. The first servo motor 351 is connected to the lower surface of the substrate 11, the screw in the screw pair 352 is connected to the output end of the first servo motor 351, the nut in the screw pair 352 is connected to the bottom of the bracket seat 31, the first slide rail pair 353 is arranged on the upper surface of the substrate 11, and the bracket seat 31 is slidably mounted on the first slide rail pair 353. A useful The avoidance groove of the nut in the avoidance screw pair 352 extends in the left and right directions. The controller of the first servo motor 351 is electrically connected to the pressure sensor 342. When the detection value of the pressure sensor 342 exceeds the set value, the controller of the first servo motor 351 controls the first servo motor 351 to stop moving, so that the bracket seat 31 stops moving. The second drive unit includes a second servo motor 361. The second servo motor 361 and the clamping bracket 32 ​​are respectively arranged on the left and right sides of the bracket seat 31. The second servo motor 361 is connected to the clamping bracket 32 ​​through a reducer 362. The reducer 362 is also provided with a slot switch for detecting the origin position of the clamping bracket 32.

[0068] To facilitate adjustment of the position of the three-claw cylinder 33, the axis line of the three-claw cylinder 33 is made to coincide with the rotation axis line of the clamping bracket 32 ​​and the axis line of the nose cone placement groove 511. In this embodiment, the clamping bracket 32 ​​is connected to the bracket seat 31 through the first connecting plate 321 and the second connecting plate 322. The first connecting plate 321 can move up and down relative to the bracket seat 31, and the second connecting plate 322 can move forward and backward relative to the first connecting plate 321. For easy adjustment, the first connecting plate 321 and the second connecting plate 322 are both provided with a spiral positioner. At the same time, the three-claw cylinder 33 is connected to the seat plate of the pressure sensor 342 through the third connecting plate 334 and the fourth connecting plate 335. The third connecting plate 334 can move forward and backward relative to the pressure sensor 342, and the fourth connecting plate 335 can move up and down relative to the third connecting plate 334. For easy adjustment, the third connecting plate 334 and the fourth connecting plate 335 are also provided with a spiral positioner.

[0069] In order to prevent the opening and closing of the clamping jaw 332 from interfering with the left side of the pen tip holder 41 , in this embodiment, the right end surface of the clamping jaw 332 is flush with the right end surface of the cylinder body 331 .

[0070] In this embodiment, a receiving groove 414 with a U-shaped cross-section is provided on the upper surface of the pen tip holder 41, and a pen tip placement groove is provided at the bottom of the receiving groove 414. The pen tip placement groove includes a first groove body 411 with a V-shaped cross-section and a second groove body 412 with a rectangular cross-section. The first groove body 411 passes through the left side of the pen tip holder 41. The first groove body 411 is used to place the cylindrical portion 71 at the left end of the pen tip 70, and the second groove body 412 is used to place the PCB board 72 at the right end of the pen tip 70.

[0071] Furthermore, the pen tip loading assembly 40 further includes a cover plate and a cover plate locking plate 45. The cover plate includes a lower cover plate 43 and an upper cover plate 44. The lower cover plate 43 is arranged above the pen tip seat 41 and covers the accommodating groove 414. A cover plate spring 431 is provided between the lower cover plate 43 and the pen tip seat 41 to drive the lower cover plate 43 to move upward. A vertical through groove for penetrating a floating pressure head is provided on the lower cover plate 43. The projection of the vertical through groove in the front-to-back direction is T-shaped. The vertical through groove includes a first groove body 41 and a second groove body 42. 1 and the second through-slot 434 located above the second slot body 412. The upper cover plate 44 is connected to the upper part of the lower cover plate 43 and covers the first through-slot 433 and the second through-slot 434. A floating spring is provided between the upper cover plate 44 and the floating pressure head to drive the floating pressure head downward. Specifically, the floating pressure head includes a first pressure head 421 that is movably provided in the first through-slot 433 and a second pressure head 421 that is movably provided in the second through-slot 434. 22, a first floating spring 425 is provided between the upper end of the first pressure head 421 and the upper cover 44, and a second floating spring 426 is provided between the upper end of the second pressure head 422 and the upper cover 44; the cover locking plate 45 is rotatably connected to the front side and the rear side of the pen holder 41, and the upper end of the cover locking plate 45 is provided with a cover hook 451, which corresponds to the cover slot 432 on the edge of the lower cover 43. When the lower cover 43 moves downward so that the cover slot 432 is lower than When the cover hook 451 is engaged, the cover locking plate 45 rotates so that the cover hook 451 is hooked on the cover slot 432, locking the relative position of the lower cover 43 and the pen tip holder 41. In order to achieve automatic locking of the cover locking plate 45, a cover locking spring 452 is further provided between the cover locking plate 45 and the pen tip holder 41. The cover locking spring 452 is located below the rotation axis of the cover locking plate 45, and the two ends of the cover locking spring 452 respectively press against the cover locking plate 45 and the pen tip holder 41.

[0072] In order to ensure the pressing effect of the pen tip 70 and realize the correction of the position of the pen tip 70 during the pressing process, in this embodiment, the lower surface of the first pressing head 421 is provided with an arc surface 423 matching the cylindrical portion 71, and the lower surface of the second pressing head 422 is provided with a flat pressing surface 424 matching the PCB board 72. When the pen tip 70 is not placed, the height difference between the highest point of the arc surface 423 and the flat pressing surface 424 is greater than the height difference between the highest point of the cylindrical portion 71 and the upper surface of the PCB board 72, which is usually 1 to 3 meters larger. m. In this way, when the pen tip 70 is placed and the lower cover 43 moves downward, the flat pressing surface 424 first contacts the PCB board 72. If the PCB board 72 is not attached to the bottom wall of the second groove body 412, the flat pressing surface 424 will drive the pen tip 70 to rotate through the PCB board 72 to correct the position of the PCB board 72. After the position of the PCB board 72 is accurate, the arc surface 423 contacts the cylindrical part 71, pressing the pen tip 70 tightly into the pen tip placement groove, correcting the warping between the PCB board 72 and the cylindrical part 71.

[0073] In this embodiment, the nose cone clamping assembly 50 also includes a support platform 54 for setting the nose cone seat 51 and the elbow clamp 53. The support platform 54 is set on the base plate 11. Specifically, the support platform 54 can be slidably mounted on the slide rail of the first slide rail pair 353. The right end of the support platform 54 is fixedly connected to the base plate 11 through an L-shaped positioning plate. The support platform 54 and the nose cone seat 51 are connected by pin holes. A through groove 541 is provided on the support platform 54 for exposing the operating rod 531 and the tightening rod 532 of the elbow clamp 53; further, the nose cone pressure plate 52 is long and is arranged along It extends in the front-to-back direction, and the front end portion of the nose cone pressure plate 52 is rotatably connected to the nose cone seat 51. A soft pad 521 corresponding to the nose cone placement groove 511 is provided in the middle of the lower surface of the nose cone pressure plate 52. To facilitate rotation, a torsion spring 522 is provided between the front end portion of the nose cone pressure plate 52 and the nose cone seat 51. The torsion spring 522 has a tendency to drive the rear end portion of the nose cone pressure plate 52 to rotate upward; to facilitate pressing, a pressure plate locking plate 513 for locking the nose cone pressure plate 52 is also provided on the nose cone seat 51. The pressure plate locking plate 513 is movably connected to the nose cone seat 51 and is located behind the nose cone pressure plate 52.

[0074] In order to facilitate adjustment of the insertion depth of the pen tip 70 into the nose cone 80 , in this embodiment, a position adjustment column 512 is provided on the left end face of the nose cone seat 51 , and the position adjustment column 512 is offset from the positioning hole on the right end face of the cylinder body 331 .

[0075] The movement process of the fully automatic gluing and pressing device for the nose cone of the active stylus pen provided by the present invention is described below.

[0076] The first step is to determine whether the glue application needle 21 needs to be replaced based on the amount of glue in the glue application needle 21 and the length of use. If it needs to be replaced, it is replaced manually. If it does not need to be replaced, proceed to the next step;

[0077] In the second step, the three-coordinate workbench 23 is manually controlled to move the tip of the glue-applying needle 21 into the square alignment hole 242. The three-coordinate workbench 23 is also controlled to move the tip of the glue-applying needle 21 to the detection point, so that the two sets of optical fiber sensors are triggered to complete the positioning of the glue-applying needle 21.

[0078] The third step is to insert the pen tip 70 into the pen tip placement slot from left to right and press down the lower cover plate 43. Use the cover plate locking plate 45 to lock the relative position of the lower cover plate 43 and the pen tip holder 41. After locking, take the pen tip loading assembly and insert the positioning pin 413 on the pen tip holder 41 into the positioning hole 333 on the cylinder body 331 and press it tightly until the cylinder body 331 moves to the left, indicating that it is inserted into place.

[0079] Step 4: Press the control button to close the clamping jaws 332 of the three-jaw cylinder 33 and clamp the cylindrical portion 71 of the pen tip 70. After the clamping jaws 332 are clamped, manually pry open the cover locking plate 45 to make the lower cover 43 pop up, so that the first pressing head 421 is separated from the cylindrical portion 71, and the second pressing head 422 is separated from the PCB board 72. Slowly pull out the pen tip loading assembly to the right. After the positioning pin 413 is completely separated from the positioning hole 333, remove the pen tip loading assembly from the window 121 to complete the loading of the pen tip 70.

[0080] Step 5: Rotate the nose cone pressing plate 52 to expose the nose cone placement groove 511, place the nose cone 80 into the nose cone placement groove 511, then rotate the nose cone pressing plate 52 in the opposite direction to press the nose cone 80, and lock the nose cone pressing plate 52 with the pressing plate locking plate 513. After locking, insert the nose cone seat 51 onto the support platform 54, and move the operating lever 531 of the toggle clamp 53 so that the tightening rod 532 presses the nose cone 80 from right to left into the nose cone placement groove 511, completing the loading of the nose cone 80.

[0081] The sixth step is to press the control button to start the automatic gluing and pressing operation: the controller controls the baffle door 123 to descend and close the window 121, and then controls the second servo motor 361 to rotate until the slot switch 363 is triggered, indicating that the clamping bracket 32 ​​is at the origin, and then controls the three-coordinate workbench 23 to move, so that the gluing needle 21 moves to the top of the waste glue tank 25 and discharges the waste glue. When the glue discharge time is over, the three-coordinate workbench 23 is controlled to move, and the gluing needle 21 is moved to the gluing setting position (above the cylindrical part 71 of the clamping jaw 332), and then controls the second servo motor 361 to rotate and controls the gluing needle 21 to start gluing. Glue, after the clamping bracket 32 ​​rotates one circle, stop gluing and move the gluing needle 21 to above the waste glue tank 25, then control the first servo motor 351 to rotate, so that the bracket seat 31 moves to the right, until the detection value of the pressure sensor 342 exceeds the set value, stop the rotation of the first servo motor 351, and release the clamping jaws 332. After the clamping jaws 332 are released in place, control the first servo motor 351 to reverse, so that the bracket seat 31 moves to the left to the initial position, and control the light curing unit to start, irradiate the nose cone to cure the glue. After the irradiation time is over, the baffle door 123 is automatically opened, indicating that the gluing and pressing operation is completed;

[0082] Step 7: manually loosen the pressing plate locking plate 513 to rotate the nose cone pressing plate 52 and expose the nose cone placement groove 511, and remove the pen nose cone after press-fitting.

[0083] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fully automatic gluing and pressing device for the nose cone of an active stylus pen, characterized in that: include: A body, the body comprising a rectangular base plate extending in a horizontal direction and a cover shell provided on the upper and lower surfaces of the base plate; A gluing module, comprising a vertically arranged electric gluing needle, the gluing needle being movable forward and backward, up and down, and left and right above the substrate; A press-fitting module, comprising a nib clamping assembly, a nib loading assembly, and a nose cone clamping assembly; The pen tip clamping assembly includes a bracket seat, a clamping bracket, a three-claw cylinder, and a buffer unit, the bracket seat is connected to the base plate movably left and right, the clamping bracket is rotatably connected to the right end portion of the bracket seat, and the rotation axis of the clamping bracket extends horizontally along the left and right directions, the three-claw cylinder includes a cylinder body and a clamping claw, the cylinder body is connected to the right end portion of the clamping bracket movably left and right through the buffer unit, and the clamping claw is openably and closably embedded in the right end surface of the cylinder body, when the clamping bracket rotates, the glue applying needle can evenly apply glue on the pen tip clamped by the clamping claw along the circumferential direction, the buffer unit includes a buffer spring and a pressure sensor arranged in sequence from left to right, and when the detection value of the pressure sensor exceeds a set value, the bracket seat stops moving; The pen tip feeding assembly includes a pen tip holder with a pen tip placement groove on its upper end surface, and a floating pressure head for correcting the pen tip posture and pressing the pen tip tightly into the pen tip placement groove; a positioning pin is provided on the left side of the pen tip holder, and the positioning pin corresponds to the positioning hole on the right end surface of the cylinder body; the length of the positioning pin is greater than the height of the pen tip protruding from the left side of the pen tip holder; there are at least two positioning pins; when the pen tip feeding assembly approaches the three-jaw cylinder, the positioning pin is inserted into the positioning hole, so that the pen tip maintains the set posture and is inserted into the cavity between the clamping jaws; the buffer spring contracts to prevent the pen tip from being over-inserted; when the pen tip feeding assembly moves away from the three-jaw cylinder, the positioning pin moves in the positioning hole to prevent the pen tip feeding assembly from touching the right end portion of the pen tip; The nose cone clamping assembly includes a nose cone seat with a nose cone placement groove on its upper surface, a nose cone pressure plate for pressing the nose cone from top to bottom into the nose cone placement groove, and a toggle clamp for pressing the nose cone in the nose cone placement groove from right to left. The nose cone seat is arranged above the base plate and is located on the right side of the pen tip clamping assembly. The axis of the nose cone placement groove coincides with the axis of the three-claw cylinder. When the bracket seat moves leftward to insert the pen tip clamped by the clamp into the nose cone in the nose cone placement groove, the buffer spring contracts to prevent the pen tip from being over-inserted. The curing module includes a curing bracket arranged on the substrate and a light curing unit arranged on the curing bracket. The light curing unit can be arranged above the substrate so as to be movable up and down, left and right, and forward and backward. The light emitted by the light curing unit is aligned with the nose cone in the nose cone placement groove.

2. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 1, characterized in that: The cover shell includes an upper cover shell covering the upper surface of the substrate and a lower cover shell covering the lower surface of the substrate. A window for feeding and discharging materials is provided on the front side of the upper cover shell, and a reflecting type grating ruler is provided on the inner walls on both sides of the window. The front side of the lower cover shell is provided with an inclined platform extending forward and downward, and a plurality of control buttons are provided on the inclined platform.

3. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 2, characterized in that: The inner wall of the upper cover shell is connected to a baffle door for opening and closing the window, and the baffle door is arranged to be movable up and down.

4. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 3, characterized in that: The left, right and rear side surfaces of the upper cover shell are provided with openable inspection windows, and the top surface of the upper cover shell is provided with an indicator light and an exhaust port.

5. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 3, characterized in that: Handles are provided on the left and right sides of the base plate, and rollers are connected to the bottom of the lower cover.

6. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 1, characterized in that: The gluing module also includes a gluing bracket arranged on the substrate and located behind the pressing module, a three-coordinate workbench arranged on the gluing bracket for driving the gluing needle to move, an alignment component for correcting the position of the gluing needle, and a waste glue tank for receiving waste glue discharged by the gluing needle. The alignment component and the waste glue tank are arranged in sequence along the left and right directions and are located between the gluing bracket and the pressing module.

7. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 6, characterized in that: The alignment component includes an alignment plate extending in the horizontal direction, a square alignment hole opened in the center of the alignment plate, and an optical fiber sensor for detecting the position of the glue coating needle. There are at least two optical fiber sensors, and the optical fiber heads of the two optical fiber sensors are passed through the alignment plate and exposed from two adjacent side walls of the square alignment hole. The light emitted by the two optical fiber heads intersects in the center of the square alignment hole to form a detection point. When the glue coating needle extends into the square alignment hole and is at the detection point, the two groups of optical fiber sensors are triggered, and the glue coating needle is at the origin position.

8. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 1, characterized in that: The pen tip clamping assembly also includes a first driving unit for driving the bracket seat to move left and right and a second driving unit for driving the clamping bracket to rotate. The first driving unit includes a first servo motor arranged under the bracket seat, and the controller of the first servo motor is electrically connected to the pressure sensor. The second driving unit includes a second servo motor, and the second servo motor and the clamping bracket are respectively arranged on the left and right sides of the bracket seat.

9. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 8, characterized in that: The clamping bracket is connected to the bracket seat through a first connecting plate and a second connecting plate. The first connecting plate can move up and down relative to the bracket seat, and the second connecting plate can move forward and backward relative to the first connecting plate.

10. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 1, characterized in that: The three-claw cylinder is connected to the pressure sensor via a third connecting plate and a fourth connecting plate. The third connecting plate can move forward and backward relative to the pressure sensor, and the fourth connecting plate can move up and down relative to the third connecting plate.

11. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 1, characterized in that: The right end surface of the clamping jaw is flush with the right end surface of the cylinder body.

12. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 1, characterized in that: The upper surface of the pen tip holder is provided with a receiving groove with a U-shaped cross-section, and the pen tip placement groove is provided at the bottom of the receiving groove. The pen tip placement groove includes a first groove body with a V-shaped cross-section and a second groove body with a rectangular cross-section. The first groove body runs through the left side of the pen tip holder. The first groove body is used to place the cylindrical part at the left end of the pen tip, and the second groove body is used to place the PCB board at the right end of the pen tip.

13. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 12, characterized in that: The pen tip loading assembly also includes a cover plate and a cover plate locking plate, the cover plate including a lower cover plate arranged above the pen tip seat and covering the accommodating groove, a cover plate spring is provided between the lower cover plate and the pen tip seat to drive the lower cover plate to move upward, the cover plate locking plate is rotatably connected to the front side and the rear side of the pen tip seat, the upper end of the cover plate locking plate is provided with a cover plate hook, the cover plate hook corresponds to the cover plate slot at the edge of the lower cover plate, when the lower cover plate moves downward so that the cover plate slot is lower than the cover plate hook, the cover plate locking plate rotates to make the cover plate hook hook on the cover plate slot, locking the relative position of the lower cover plate and the pen tip seat.

14. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 13, characterized in that: A cover locking spring is provided between the cover locking plate and the pen tip holder. The cover locking spring is located below the rotation axis of the cover locking plate. The two ends of the cover locking spring respectively press against the cover locking plate and the pen tip holder.

15. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 13, characterized in that: The lower cover plate is provided with a vertical through slot for passing the floating pressure head. The cover plate also includes an upper cover plate connected above the lower cover plate and covering the vertical through slot. A floating spring is provided between the upper cover plate and the floating pressure head to drive the floating pressure head to move downward.

16. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 15, characterized in that: The vertical through-groove includes a first through-groove located above the first groove body and a second through-groove located above the second groove body. The floating pressure head includes a first pressure head that can be moved up and down in the first through-groove and a second pressure head that can be moved up and down in the second through-groove. The lower surface of the first pressure head is provided with an arc surface that matches the cylindrical part, and the lower surface of the second pressure head is provided with a flat pressing surface that matches the PCB board. The height difference between the highest point of the arc surface and the flat pressing surface is greater than or equal to the height difference between the highest point of the cylindrical part and the upper surface of the PCB board.

17. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 1, characterized in that: The nose cone clamping assembly also includes a support platform for setting the nose cone seat and the elbow clamp. The support platform is set on the base plate, and the support platform is plugged and connected to the nose cone seat. A through groove is opened on the support platform for exposing the operating rod and the tightening rod of the elbow clamp.

18. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 1, characterized in that: The nose cone pressure plate is in the shape of an elongated strip and extends in the front-to-back direction. The front end portion of the nose cone pressure plate is rotatably connected to the nose cone seat. A soft pad corresponding to the nose cone placement groove is provided in the middle portion of the lower surface of the nose cone pressure plate.

19. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 18, characterized in that: A torsion spring is provided between the front end portion of the nose cone pressure plate and the nose cone seat, and the torsion spring has a tendency to drive the nose cone pressure plate to rotate upward; the nose cone seat is also provided with a pressure plate locking plate for locking the nose cone pressure plate, and the pressure plate locking plate is movably connected to the nose cone seat and is located behind the nose cone pressure plate.

20. The fully automatic gluing and pressing device for the nose cone of an active stylus pen according to claim 1, characterized in that: A position adjustment column is provided on the left end surface of the nose cone seat, and the position adjustment column is staggered with the positioning hole on the right end surface of the cylinder body.

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