Auxiliary device for ear cup nail needle laser welding

Abstract

The utility model discloses an auxiliary device for ear cup nail needle laser welding, which comprises an operation platform, a first bearing seat, a second bearing seat and a third bearing seat are arranged on the operation platform, are separated at intervals and are coaxially arranged, and a rotating shaft penetrates through the first bearing seat and the second bearing seat. A cup plug is arranged at one end of the rotating shaft, a sleeve penetrates through the third bearing seat, and the sleeve and the cup plug are oppositely arranged. The auxiliary device for ear cup nail needle laser welding is easy to operate, welding precision is improved, welding efficiency is improved, and the percent of pass is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of ear stud processing, and more specifically to an auxiliary device for laser welding of ear cup studs. Background Art

[0002] The non-precious metal earrings sold on the market are generally composed of two parts: the ear cup and the nail pin. The ear cup is used to inlay crystals, etc. The nail pin is thinner and is generally made of stainless steel wire. It adopts the cold drawing process, but the ear cup is generally cast, turned, and stamped. Therefore, they cannot be manufactured in one piece, but are separated and need to be laser welded together in the later stage.

[0003] During the laser welding process, the ear cup and the nail needle need to be held separately, and the alignment of the ear cup center and the nail needle axis needs to be considered. Therefore, the progress requirements are relatively high. The existing technology is manually operated, with large errors, which is not only inefficient but also has a high defective rate. Utility Model Content

[0004] The purpose of the utility model is to overcome the above defects of the prior art and provide an auxiliary device for laser welding of ear cup nails, which is simple to operate, improves welding accuracy, and increases welding efficiency and qualified rate.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions: an auxiliary device for laser welding of ear cup nails, including an operating platform, characterized in that three spaced-apart but coaxially arranged first bearing seats, second bearing seats and third bearing seats are provided on the operating platform, a rotating shaft passes through the first bearing seat and the second bearing seat, a cup plug is provided on one end of the rotating shaft, a sleeve passes through the third bearing seat, and the sleeve is arranged opposite to the cup plug.

[0006] The cup plug of the utility model is used to hold the ear cup, and the sleeve is used to hold the nail needle. Because the first bearing seat, the second bearing seat and the third bearing seat are on the same axis, it can be ensured that the center of the ear cup and the axis of the nail needle are aligned. The rotating shaft rotates slowly to ensure that a complete circle is welded at one time during the laser welding process. The slide plate drives the third bearing seat to reciprocate, solving the problem of loading and unloading the ear nail after welding.

[0007] Preferably, the sleeve is slidably arranged on the third bearing seat, the end of the sleeve away from the cup plug is closed, and the third bearing seat is provided with a locking bolt that penetrates the wall thickness and reaches the sleeve.

[0008] Loosen the locking bolt, pull the sleeve back, insert the nail, let the nail reach the bottom of the closed end, then pull the sleeve back to let the nail contact the ear cup, and then tighten the locking bolt. Although there is friction between the sleeve wall and the nail, it does not prevent the nail from rotating at the beginning. Later, after the first weld point is put on, it rotates with the ear cup.

[0009] As an alternative to the above-mentioned solution, the sleeve is fixedly arranged on the third bearing seat, the two ends of the sleeve are open, and the lower part of the third bearing seat is installed on a pair of slide rails through a slide plate, and the track direction of the two slide rails is parallel to the axial direction of the first bearing seat, the second bearing seat and the third bearing seat.

[0010] Pull the third bearing seat back and forth, and the slide will carry the sleeve and then the nail pin closer to the ear cup. There is no need to consider how much the nail pin is exposed after being inserted into the sleeve. Due to the friction between the sleeve wall and the nail pin, the excess part of the nail pin will be pushed back when it hits the ear cup. The nail pin does not rotate at first, but rotates with the ear cup after the first weld point is reached.

[0011] Preferably, a limit block is provided between the second bearing seat and the third bearing seat, and the limit block is engaged with the slide plate.

[0012] The slide brings the sleeve and then the nail needle closer to the ear cup and is positioned using a pre-determined limit block, so that the ear cup and the nail needle can be connected quickly and accurately.

[0013] Preferably, a striker is provided on the slide plate, a rubber sleeve is provided on the free end of the striker, a slot is provided on the limit block, and the striker and the slot are engaged and disengaged.

[0014] The firing pin allows the rubber sleeve to be inserted into the slot to stabilize the connection between the ear cup and the nail pin.

[0015] Preferably, a handle is provided on the side of the third bearing seat.

[0016] The handle allows the operator to smoothly pull the third bearing seat back and forth.

[0017] Preferably, a driven pulley is provided on the rotating shaft between the first bearing seat and the second bearing seat, the driven pulley is connected to a driving pulley via a transmission belt, and the driving pulley is provided on the motor shaft of a servo motor.

[0018] The servo motor slowly drives the driving pulley, which in turn drives the driven pulley through the transmission belt, thereby slowly rotating the shaft to complete the welding.

[0019] Preferably, the rotating shaft is a hollow shaft tube structure, and a trachea joint is provided on the other end of the rotating shaft. The trachea joint is connected to the rotating shaft through a bearing, and a needle tube is passed horizontally through the center of the cup plug. The tube cavities of the needle tube, the rotating shaft and the trachea joint are connected to form an exhaust channel.

[0020] To ensure the cup stopper holds the ear cup securely, it uses suction. However, considering the rotating shaft, a bearing is required to connect the air pipe joint and the shaft. Furthermore, considering that the ear cup is relatively soft and cannot be scratched, the cup stopper needs to be made of soft materials such as plastic or rubber.

[0021] Preferably, the free end of the needle tube is exposed outside the end surface of the cup plug.

[0022] The diameter of the needle tube is smaller than the diameter of the nail needle, so that the needle tube provides a positioning function when the ear cup and the nail needle are brought close together.

[0023] Beneficial effect: The utility model aims to provide an auxiliary device for laser welding of ear cup nails, which is simple to operate, improves welding accuracy, and increases welding efficiency and qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A structural diagram of the utility model;

[0025] Figure 2 This is another structural diagram of the present utility model.

[0026] In the figure: 1-operating platform, 2-first bearing seat, 3-second bearing seat, 4-rotating shaft, 5-driven pulley, 6-transmission belt, 7-driving pulley, 8-servo motor, 9-trachea joint, 10-bearing, 11-cup plug, 12-needle tube, 13-third bearing seat, 14-sleeve, 15-slide plate, 16-slide rail, 17-limit block, 18-striker, 19-slot, 20-rubber sleeve, 21-handle, 22-locking bolt, 23-laser welding head. DETAILED DESCRIPTION

[0027] In order to make the technical means, creative features and objectives of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0028] Example 1: Figure 1 As shown, an auxiliary device for laser welding of ear cup nails includes an operating platform 1, on which are provided a first bearing seat 2, a second bearing seat 3 and a third bearing seat 13 which are separated from each other but arranged coaxially.

[0029] A rotating shaft 4 passes through the first bearing seat 2 and the second bearing seat 3. The rotating shaft 4 is a hollow shaft tube structure. A cup stopper 11 is provided on one end of the rotating shaft 4, and an air pipe joint 9 is provided on the other end of the rotating shaft 4.

[0030] A bearing 10 connects the tracheal connector 9 to the rotating shaft 4. A needle tube 12 extends transversely through the center of the cup plug 11. The needle tube 12, the rotating shaft 4, and the lumen of the tracheal connector 9 communicate to form an air extraction channel. The free end of the needle tube 12 is exposed outside the end surface of the cup plug 11. A driven pulley 5 is mounted on the rotating shaft 4 between the first and second bearing blocks 2 and 3. The driven pulley 5 is connected to a driving pulley 7 via a transmission belt 6. The driving pulley 7 is mounted on the motor shaft of a servo motor 8.

[0031] A sleeve 14 passes through the third bearing seat 13. The sleeve 14 is arranged opposite to the cup plug 11. The sleeve 14 is slidably set on the third bearing seat 13. The end of the sleeve 14 away from the cup plug 11 is closed. The third bearing seat 13 is provided with a locking bolt 22 that passes through its wall thickness and reaches the sleeve 14.

[0032] The obliquely upper position of the sleeve 14 facing the cup plug 11 is aligned with the laser welding head 23 .

[0033] Usage: The cup stopper holds the ear cup. To ensure it remains firmly in place, suction is used. However, due to the rotating shaft, a bearing is required to connect the air pipe connector to the shaft. The sleeve holds the pin. Loosen the locking bolt, pull the sleeve back, insert the pin, and let it rest against the bottom of the closed end. Then, pull the sleeve back until the pin contacts the ear cup, and tighten the locking bolt. Although there is friction between the sleeve wall and the pin, it does not prevent the pin from initially rotating. Later, after the first weld is made, it rotates with the ear cup. After one full rotation, loosen the locking bolt and pull the sleeve back. The welded ear cup and pin can be removed and moved to the next welding step.

[0034] Example 2: Figure 2 As shown, an auxiliary device for laser welding of ear cup nails includes an operating platform 1, on which are provided a first bearing seat 2, a second bearing seat 3 and a third bearing seat 13 which are separated from each other but arranged coaxially.

[0035] A rotating shaft 4 is passed through the first bearing seat 2 and the second bearing seat 3. The rotating shaft 4 is a hollow shaft tube structure. A cup stopper 11 is provided on one end of the rotating shaft 4, and an air pipe joint 9 is provided on the other end of the rotating shaft 4.

[0036] A bearing 10 connects the tracheal connector 9 to the rotating shaft 4. A needle tube 12 extends transversely through the center of the cup plug 11. The needle tube 12, the rotating shaft 4, and the lumen of the tracheal connector 9 communicate to form an air extraction channel. The free end of the needle tube 12 is exposed outside the end surface of the cup plug 11. A driven pulley 5 is mounted on the rotating shaft 4 between the first and second bearing blocks 2 and 3. The driven pulley 5 is connected to a driving pulley 7 via a transmission belt 6. The driving pulley 7 is mounted on the motor shaft of a servo motor 8.

[0037] A sleeve 14 extends through the third bearing seat 13 and is positioned opposite the cup stopper 11. Sleeve 14 is fixed to the third bearing seat 13, with openings at both ends. The lower portion of the third bearing seat 13 is mounted on a pair of slide rails 16 via a slide 15. The track directions of the two slide rails 16 are parallel to the axial directions of the first bearing seat 2, the second bearing seat 3, and the third bearing seat 4. A stop block 17 is provided between the second bearing seat 3 and the third bearing seat 4, and the stop block 17 engages and disengages with the slide 15. A striker 18 is provided on the slide 15, and a rubber sleeve 20 is provided on the free end of the striker 18. A retaining groove 19 is provided on the stop block 17, and the striker 18 engages and disengages with the retaining groove 19. A handle 21 is provided on the side of the third bearing seat 13.

[0038] The obliquely upper position of the sleeve 14 facing the cup plug 11 is aligned with the laser welding head 23 .

[0039] Usage: The cup stopper holds the ear cup. To ensure a secure grip, suction is used. However, given the rotating shaft, a bearing is required to connect the air pipe connector to the shaft. The cannula holds the stapler, and the cannula provides a fixed position as the ear cup and stapler approach. The handle allows the operator to smoothly pull the third bearing back and forth. The slide pulls the cannula, and then the stapler, toward the ear cup. Pre-defined stoppers ensure precise alignment of the ear cup and stapler. The cannula's outer wall and the stapler's outer wall prevent the stapler from protruding from the ear cup. Due to friction between the cannula and the stapler, the excess is pushed back when the stapler contacts the ear cup. Initially, the stapler does not rotate, but after the first weld is established, it rotates with the ear cup. The striker allows the rubber sleeve to engage the slot, stabilizing the connection between the ear cup and the stapler. Finally, the servo motor slowly drives the active pulley, and then drives the driven pulley through the transmission belt, so that the rotating shaft slowly rotates. The rotating shaft slowly rotates to ensure that a complete circle is welded at one time during the laser welding process. The slide moves back and forth with the third bearing seat to solve the loading and unloading of the earrings after welding.

Claims

1. An auxiliary device for laser welding of ear cup nails, comprising an operating platform, characterized in that: The operating platform is provided with a first bearing seat, a second bearing seat and a third bearing seat which are separated from each other but arranged coaxially. A rotating shaft passes through the first bearing seat and the second bearing seat, and a cup plug is provided on one end of the rotating shaft. A sleeve passes through the third bearing seat, and the sleeve is arranged opposite to the cup plug.

2. The auxiliary device for laser welding of ear cup nails according to claim 1, characterized in that: The sleeve is slidably arranged on the third bearing seat, the end of the sleeve away from the cup plug is closed, and the third bearing seat is provided with a locking bolt that penetrates the wall thickness and directly reaches the sleeve.

3. The auxiliary device for laser welding of ear cup nails according to claim 1, characterized in that: The sleeve is fixedly arranged on the third bearing seat, and the two ends of the sleeve are through-holes. The lower part of the third bearing seat is installed on a pair of slide rails through a slide plate, and the track direction of the two slide rails is parallel to the axial direction of the first bearing seat, the second bearing seat and the third bearing seat.

4. The auxiliary device for laser welding of ear cup nails according to claim 3, characterized in that: A limiting block is provided between the second bearing seat and the third bearing seat, and the limiting block is engaged and disengaged with the slide plate.

5. The auxiliary device for laser welding of ear cup nails according to claim 4, characterized in that: The slide plate is provided with a striker, the free end of the striker is provided with a rubber sleeve, the limit block is provided with a slot, and the striker is engaged and disengaged with the slot.

6. The auxiliary device for laser welding of ear cup nails according to claim 3, 4 or 5, characterized in that: A handle is provided on the side of the third bearing seat.

7. The auxiliary device for laser welding of ear cup nails according to claim 1, characterized in that: A driven pulley is provided on the rotating shaft between the first bearing seat and the second bearing seat. The driven pulley is connected to a driving pulley via a transmission belt. The driving pulley is provided on the motor shaft of a servo motor.

8. The auxiliary device for laser welding of ear cup nails according to claim 7, characterized in that: The rotating shaft is a hollow shaft tube structure, and a trachea joint is provided on the other end of the rotating shaft. The trachea joint and the rotating shaft are connected by a bearing. A needle tube is passed horizontally through the center of the cup plug. The tube cavities of the needle tube, the rotating shaft and the trachea joint are connected to form an air extraction channel.

9. The auxiliary device for laser welding of ear cup nails according to claim 8, characterized in that: The free end of the needle tube is exposed outside the end surface of the cup plug.

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