A laser stripping machine for the insulation layer of voice coil leads

Abstract

This utility model provides a laser stripping machine for voice coil lead insulation, comprising a machine base with a material holder mechanism and a laser processing mechanism. The material holder mechanism includes a rotating support fixedly connected to the top of the machine base and a spindle. The rotating support has a spindle hole, and the spindle is connected to the spindle hole via a bearing. A voice coil fixture is mounted on the spindle. The laser processing mechanism includes a height adjustment device, an ultraviolet laser, and an optical lens mounted on the machine base. The height adjustment device can adjust the height of the ultraviolet laser, and the optical lens is mounted on one side of the ultraviolet laser. The laser output end of the ultraviolet laser is connected to the laser input end of the optical lens. This method eliminates the need for chemical stripping of the lead insulation, produces no odor, is highly acceptable to workers, avoids lead corrosion caused by chemical stripping, and ensures product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of voice coil processing equipment, and more particularly to a laser stripping machine for the insulation layer of voice coil leads. Background Technology

[0002] The voice coil is the coil through which current flows in a loudspeaker. It is an important component of the mechanical wave system of an electrodynamic loudspeaker, and can be considered the heart of the loudspeaker. The voice coil mainly consists of a frame and a coil. The coil is wound on the frame, and leads are soldered to the two ends of the coil.

[0003] During the voice coil manufacturing process, the insulation layer on the surface of the lead wire needs to be peeled off. Currently, the main method is to soak the lead wire in a chemical solution to peel off the insulation layer. This method easily leaves chemical residue on the lead wire. Since the chemical solution is a chemical, it has a corrosive effect on the lead wire. Over time, the residual chemical solution will corrode the copper wire, causing the copper wire to break. In addition, this type of chemical solution has a pungent odor, and most workers are unwilling to work at this station. The labor cost for this station is relatively high, resulting in a high turnover rate of workers at this station. Summary of the Invention

[0004] The problem to be solved by this utility model is to provide a laser stripping machine for the insulation layer of voice coil leads, which avoids the corrosion of leads caused by the use of chemicals and ensures product quality.

[0005] To solve the above-mentioned technical problems, a laser stripping machine for the insulation layer of voice coil leads provided by this utility model is provided, comprising a machine base, a material holder mechanism and a laser processing mechanism on the machine base; the material holder mechanism includes a rotating support fixedly connected to the top of the machine base and a main shaft, the rotating support is provided with a main shaft hole, the main shaft and the main shaft hole are connected by a bearing, and a voice coil fixture is installed on the main shaft; the laser processing mechanism includes a height adjustment device, an ultraviolet laser and an optical lens disposed on the machine base, the height adjustment device can adjust the height of the ultraviolet laser, the optical lens is installed on one side of the ultraviolet laser, and the laser output end of the ultraviolet laser is connected to the laser input end of the optical lens.

[0006] Preferably, the spindle includes a mandrel, a first limiting sleeve, a movable sleeve, a second limiting sleeve, a spring, a steel ball, and a quick-change component. A first annular limiting portion is provided on the outer periphery of the mandrel. The first limiting sleeve fits onto the mandrel, with its inner end face abutting against one end face of the first annular limiting portion. A first spring groove is provided on the inner periphery of the first limiting sleeve. The movable sleeve fits onto the mandrel, and a second spring groove is provided on the inner periphery of one end of the movable sleeve. The second spring groove fits onto the first limiting sleeve. A spring fits onto the mandrel and abuts between one end face of the first spring groove and one end face of the second spring groove. A spring is provided on the outer periphery of one end of the mandrel, which is connected to the second limiting portion. The first annular groove of the sleeve is matched, and the second limiting sleeve fits into the first annular groove. The other end of the movable sleeve has an annular clearance groove on its inner circumference. One end of the annular clearance groove has a contact slope. The quick-change part includes a plug rod, a second annular limiting part on the circumference of the plug rod, a voice coil fixture fitted into one end of the plug rod, a plug hole matching one end of the plug rod on one end of the spindle, one end of the plug rod inserted into the plug hole, a tapered hole through the side wall of the spindle and the plug hole, a steel ball movably disposed in the tapered hole, an annular locking groove on the circumference of one end of the plug rod, and the contact slope abuts against the steel ball so that the steel ball is locked in the annular locking groove.

[0007] Preferably, the height adjustment device includes a longitudinal slide on the machine base, a longitudinal screw rotatably connected to the longitudinal slide, a longitudinal slider slidably connected to the longitudinal slide along the Z-axis direction, an internal threaded sleeve that passes through the longitudinal slider and is connected to the longitudinal screw, an ultraviolet laser is mounted on the longitudinal slider, and a handwheel is connected to the top of the longitudinal screw.

[0008] Preferably, a pad is fixedly connected to the top of the machine base, and screw holes are evenly distributed on the pad. Through holes are provided on both sides of the rotating support, and the through holes and screw holes are connected by bolts.

[0009] Preferably, the ultraviolet laser and the optical lens are connected by a flange, and the laser output end of the ultraviolet laser is connected to the laser input end of the optical lens through the inner ring of the flange.

[0010] The beneficial effects of this utility model are as follows: This utility model provides a laser stripping machine for the insulation layer of voice coil leads. A voice coil fixture matching the voice coil is installed on the main shaft. The voice coil is positioned on the voice coil fixture. By rotating the main shaft, the voice coil is rotated so that the laser emitted from the optical lens can irradiate the position of the lead wire where the insulation layer needs to be stripped. The height of the optical lens can be adjusted by a height adjustment device so that the focus of the laser emitted from the optical lens can irradiate the position of the lead wire where the insulation layer needs to be stripped, thereby improving the stripping efficiency of the insulation layer. There is no need to use chemicals to strip the insulation layer of the lead wire, no odor is generated, and the workers have a high acceptance rate. It avoids the corrosion of the lead wire caused by the use of chemicals and ensures product quality. Attached Figure Description

[0011] Figure 1A schematic diagram illustrating the external structure of this utility model is provided.

[0012] Figure 2 A cross-sectional view of the present invention is shown.

[0013] Figure 3 This utility model is illustrated. Figure 2 A magnified schematic diagram of part A in the middle.

[0014] Figure 4 A cross-sectional view of the spindle of this utility model is shown.

[0015] Figure 5 An exploded view of the main shaft of this utility model is shown.

[0016] Reference numerals in the attached figures: Material holder mechanism 1, Rotary support 10, Through hole 100, Main shaft 11, Mandrel 110, First annular limiting part 110a, First annular groove 110b, Insertion hole 110c, Tapered hole 110d, First limiting sleeve 111, First spring groove 111a, Movable sleeve 112, Second spring groove 112a, Annular clearance groove 112b, Contact inclined surface 112c, Second limiting sleeve 113, Spring 114, Steel ball 115, Quick change part 116, Insert rod 116a, Second annular limiting part 116b, Annular locking groove 116c, Voice coil fixture 12, Laser processing mechanism 2, Height adjustment device 20, Longitudinal slide 200, Longitudinal screw 201, Longitudinal slider 202, Handwheel 203, Ultraviolet laser 21, Optical lens 22, Flange 23, Pad 3, Screw hole 30. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.

[0018] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0019] refer to Figures 1-5 .

[0020] This utility model provides a laser stripping machine for the insulation layer of voice coil leads, comprising a machine base, on which a material holder mechanism 1 and a laser processing mechanism 2 are arranged. The material holder mechanism 1 includes a rotating support 10 fixedly connected to the top of the machine base and a spindle 11. The rotating support 10 is provided with a spindle hole, and the spindle 11 is connected to the spindle hole by a bearing. A voice coil fixture 12 is mounted on the spindle 11. The laser processing mechanism 2 includes a height adjustment device 20, an ultraviolet laser 21, and an optical lens 22 arranged on the machine base. The height adjustment device 20 can adjust the height of the ultraviolet laser 21. The optical lens 22 is installed on one side of the ultraviolet laser 21, and the laser output end of the ultraviolet laser 21 is connected to the laser input end of the optical lens 22.

[0021] Its working principle is as follows: a voice coil fixture 12 matching the voice coil is installed on the main shaft 11, and the voice coil is positioned on the voice coil fixture 12. By rotating the main shaft 11, the voice coil is rotated so that the laser emitted by the optical lens 22 can irradiate the position of the lead wire where the insulation layer needs to be stripped. The height of the optical lens 22 can be adjusted by the height adjustment device 20 so that the focus of the laser emitted from the optical lens 22 can irradiate the position of the lead wire where the insulation layer needs to be stripped, thereby improving the stripping efficiency of the insulation layer. There is no need to use chemicals to strip the lead wire insulation layer, there is no odor, and it is highly acceptable to workers. It avoids the corrosion of the lead wire caused by the use of chemicals and ensures product quality.

[0022] Based on the above embodiments, the spindle 11 includes a spindle 110, a first limiting sleeve 111, a movable sleeve 112, a second limiting sleeve 113, a spring 114, a steel ball 115, and a quick-change component 116. A first annular limiting portion 110a is provided on the outer periphery of the spindle 110. The first limiting sleeve 111 is fitted onto the spindle 110, and its inner end face abuts against one end face of the first annular limiting portion 110a. A second limiting sleeve 114 is provided on the inner periphery of the first limiting sleeve 115. A spring groove 111a is provided, and a movable sleeve 112 is fitted onto the spindle 110. A second spring groove 112a is provided on the inner circumference of one end of the movable sleeve 112. The second spring groove 112a is fitted onto the first limiting sleeve 111. A spring 114 is fitted onto the spindle 110 and abuts between one end face of the first spring groove 111a and one end face of the second spring groove 112a. A first ring matching the second limiting sleeve 113 is provided on the outer circumference of one end of the spindle 110. The first annular groove 110b is fitted with a second limiting sleeve 113, and the other end of the movable sleeve 112 has an annular clearance groove 112b on its inner circumference. One end of the annular clearance groove 112b has a contact slope 112c. The quick-change part 116 includes a plug rod 116a and a second annular limiting part 116b disposed on the circumference of the plug rod 116a. The voice coil fixture 12 is fitted onto one end of the plug rod 116a, and one end of the spindle 110 has a contact slope 112c. A socket 110c is matched with one end of the insertion rod 116a. One end of the insertion rod 116a is inserted into the socket 110c. A tapered hole 110d is provided between the side wall of the spindle 110 and the socket 110c. The steel ball 115 is movably disposed in the tapered hole 110d. An annular locking groove 116c is provided around one end of the insertion rod 116a. The contact inclined surface 112c abuts against the steel ball 115 so that the steel ball 115 is locked in the annular locking groove 116c.To prevent the steel ball 115 from falling into the insertion hole 110c, the diameter of the end of the tapered hole 110d adjacent to the insertion hole 110c should be smaller than the diameter of the steel ball 115, and the diameter of the end of the tapered hole 110d adjacent to the second spring groove 112a should be larger than the diameter of the steel ball 115. During use, when it is necessary to replace the voice coil fixture 12 on the quick-change part 116, push the movable sleeve 112 backward. The spring 114 will be compressed, the contact inclined surface 112c will separate from the steel ball 115, and the quick-change part 116 will be pulled outward. The steel ball 115 will contact the annular locking groove 116c and retract into the tapered hole 110d. The insertion rod 116d can then be pulled out of the insertion hole 110c. At this point, the... The voice coil fixture 12 on the quick-change part 116 is replaced; when one end of the plug rod 116a is inserted into the socket 110c, the steel ball 115 extends into the socket 110c under the pushing force of the contact inclined surface 112c. When the side wall of the plug rod 116a abuts against the steel ball 115, the contact inclined surface 112c is squeezed by the steel ball 115, causing the movable sleeve 112 to retract and compress the spring 114. When the annular locking groove 116c is opposite to the conical hole 110d, the steel ball 115 will extend into the socket 110c under the squeezing of the contact inclined surface 112c and be locked in the annular locking groove 116c, preventing the plug rod 116a from coming out of the socket 110c, thus playing a locking role.

[0023] Based on the above embodiments, the height adjustment device 20 includes a longitudinal slide 200 disposed on the machine base, a longitudinal screw 201 rotatably connected to the longitudinal slide 200, a longitudinal slider 202 slidably connected to the longitudinal slide 200 along the Z-axis direction, and an internally threaded sleeve that passes through the longitudinal slider 202 and is connected to the longitudinal screw 201. The ultraviolet laser 21 is mounted on the longitudinal slider 202, and a handwheel 203 is connected to the top of the longitudinal screw 201. By gripping the handwheel 203 to rotate the longitudinal screw 201, the longitudinal slider 202 can be moved along the longitudinal slide 200 to adjust the height of the optical lens 22.

[0024] Based on the above embodiments, a pad 3 is fixedly connected to the top of the machine base. Screw holes 30 are evenly distributed on the pad 3. Through holes 100 are provided on both sides of the rotating support 10. The through holes 100 and the screw holes 30 are connected by bolts to facilitate the adjustment of the installation position of the rotating support 10.

[0025] Based on the above embodiments, the ultraviolet laser 21 and the optical lens 22 are connected by a flange 23. The laser output end of the ultraviolet laser 21 is connected to the laser input end of the optical lens 22 through the inner ring of the flange 23, thereby realizing the installation and fixation between the ultraviolet laser 21 and the optical lens 22.

[0026] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A voice coil lead insulation layer laser lift-off machine, comprising a machine table, characterized in that, The machine base is equipped with a material holder mechanism and a laser processing mechanism. The material holder mechanism includes a rotating support fixedly connected to the top of the machine base and a spindle. The rotating support has a spindle hole, and the spindle is connected to the spindle hole via a bearing. A voice coil fixture is mounted on the spindle. The laser processing mechanism includes a height adjustment device, an ultraviolet laser, and an optical lens mounted on the machine base. The height adjustment device can adjust the height of the ultraviolet laser, and the optical lens is mounted on one side of the ultraviolet laser. The laser output end of the ultraviolet laser is connected to the laser input end of the optical lens.

2. The voice coil lead insulation layer laser lift-off machine according to claim 1, wherein, The main shaft includes a spindle, a first limiting sleeve, a movable sleeve, a second limiting sleeve, a spring, a steel ball, and a quick-change component. A first annular limiting portion is provided on the outer periphery of the spindle. The first limiting sleeve is fitted onto the spindle, with its inner end face abutting against one end face of the first annular limiting portion. A first spring groove is provided on the inner periphery of the first limiting sleeve. The movable sleeve is fitted onto the spindle, and a second spring groove is provided on the inner periphery of one end of the movable sleeve. The second spring groove is fitted onto the first limiting sleeve. The spring is fitted onto the spindle and abuts against one end face of the first spring groove and one end face of the second spring groove. A first spring groove matching the second limiting sleeve is provided on the outer periphery of one end of the spindle. A first annular groove is provided, the second limiting sleeve fits onto the first annular groove, the other end of the movable sleeve is provided with an annular clearance groove, one end of the annular clearance groove is provided with a contact slope, the quick-change component includes a plug rod, a second annular limiting part provided on the periphery of the plug rod, a voice coil fixture fits onto one end of the plug rod, one end of the mandrel is provided with a plug hole that matches one end of the plug rod, one end of the plug rod is inserted into the plug hole, a tapered hole is provided through between the side wall of the mandrel and the plug hole, a steel ball is movably disposed in the tapered hole, one end of the plug rod is provided with an annular locking groove on the periphery, and the contact slope abuts against the steel ball so that the steel ball is locked in the annular locking groove.

3. The voice coil lead insulation layer laser lift-off machine according to claim 2, wherein, The height adjustment device includes a longitudinal slide block disposed on the machine base, a longitudinal screw rod rotatably connected to the longitudinal slide block, a longitudinal slider block slidably connected to the longitudinal slide block along the Z-axis direction, an internal threaded sleeve disposed through the longitudinal slider block and connected to the longitudinal screw rod, the ultraviolet laser being mounted on the longitudinal slider block, and a handwheel being connected to the top end of the longitudinal screw rod.

4. The voice coil lead insulation layer laser lift-off machine of claim 3, wherein, A pad is fixedly connected to the top of the machine base. Screw holes are evenly distributed on the pad. Through holes are provided on both sides of the rotating support. The through holes and the screw holes are connected by bolts.

5. The voice coil lead insulation layer laser lift-off machine of claim 4, wherein, The ultraviolet laser and the optical lens are connected by a flange, and the laser output end of the ultraviolet laser is connected to the laser input end of the optical lens through the inner ring of the flange.

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