CN214978397U - Wire feeding type welding head capable of being continuously controlled in position - Google Patents
Wire feeding type welding head capable of being continuously controlled in position Download PDFInfo
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- CN214978397U CN214978397U CN202121696744.3U CN202121696744U CN214978397U CN 214978397 U CN214978397 U CN 214978397U CN 202121696744 U CN202121696744 U CN 202121696744U CN 214978397 U CN214978397 U CN 214978397U
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- driving motor
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Abstract
The utility model discloses a can position accuse in succession send a formula bonding tool, including being used for the welded arm that welds, being used for the clamp wire and sending the clamp wire subassembly of line and the controller that is used for control, the clamp wire subassembly includes the fastener, be equipped with between fastener middle part and the welding arm middle part and connect the two elastic first elastic component that has, fastener afterbody and weld the first driving motor that is equipped with the drive fastener luffing motion between the arm, a driving motor and controller electric connection. The utility model has the advantages of can realize sending a bonding tool to control in succession, send a speed ability precision control, automated control to send a speed, impact vibration little, send a stable.
Description
Technical Field
The utility model relates to a wire bonding machine bonding tool technical field especially relates to a can be in succession position accuse send a formula bonding tool.
Background
After the two times of bonding, the wire bonding machine needs to leave a section of length (i.e. tail wire length) of the metal wire at the lower end of the porcelain nozzle (or cleaver) for the next line of bonding. The consistency of the tail wire length is a prerequisite guarantee for the stability of the wire bonding machine, and two tail wire remaining modes exist at present. The method comprises the following steps that firstly, relative displacement cannot be generated between the porcelain nozzle and the wire clamp, when the second welding of the welding wire is carried out, the metal wire is not completely cut off, the metal wire is stuck to a welding base body, the welding arm drives the porcelain nozzle to leave the welding base body, and the metal wire is pulled out of the porcelain nozzle, namely, the wire pulling mode is adopted; in the second method, the wire clamp can generate displacement relative to the porcelain nozzle, and the metal wire is clamped and fed into the porcelain nozzle for a certain distance to form a tail wire, which is called a wire feeding mode. The wire pulling mode has the advantages that the wire clamp and the welding arm for fixing the porcelain nozzle have no relative movement mechanism, and the whole welding head has light weight and high rigidity. The disadvantage is that the second weld cannot completely cut the wire, otherwise the wire cannot be pulled out of the nozzle, leaving a tail wire. The wire feeding mode has the advantage that the metal wire is easily and forcibly fed out to form the tail wire. The defects are that the mechanism is complex, the weight is heavy, and the rigidity is reduced.
In the existing wire feeding mode, the length of the tail wire is determined by the movement distance of the wire clamp mechanism relative to the welding arm, the distance is determined by two mechanical limit points, the wire clamp can only be tightly stopped on the two limit points and cannot be stopped at other positions between the two limit points, namely the length of the tail wire is fixed and cannot be continuously controlled or adjusted under the conditions that the relative position of parts of the wire clamp mechanism is not changed (or not adjusted) and the relative position of the parts of the welding arm mechanism is not changed (or not adjusted).
In addition, the tail wire retaining action of the wire feeding type welding head can generate mechanical impact and cause vibration, mainly because only one upper limit and one lower limit exist in the wire clamp movement, the wire clamp and the upper limit or the lower limit are easy to generate impact, vibration is caused, and welding quality is influenced.
The present invention is made based on such a situation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide one kind can realize sending a bonding tool to control in succession, send a speed ability precision control, automated control to send a speed, impact vibration little, send a stable can position accuse in succession send a formula bonding tool.
The utility model discloses a realize through following technical scheme:
the utility model provides a can position accuse send a formula bonding tool in succession, is used for the welded arm that welds, is used for the clamp wire and send the double-layered line subassembly of line and the controller that is used for control, the double-layered line subassembly includes the fastener, be equipped with the first elastic component that has elasticity that connects the two between fastener middle part and the welding arm middle part, be equipped with the first driving motor of drive fastener luffing motion between fastener afterbody and the welding arm, first driving motor and controller electric connection.
According to the wire feeding type welding head capable of being continuously controlled in position, the welding arm is provided with the displacement sensor for detecting the vertical swing amplitude of the wire clamp, and the displacement sensor is electrically connected with the controller.
According to the wire feeding type welding head capable of being continuously controlled, the position of the wire clamp corresponding to the displacement sensor is provided with the grating.
According to the wire feeding type welding head capable of being continuously controlled, the first driving motor comprises a first coil part fixed at the tail part of the wire clamp, first magnet parts are arranged on the front side and the rear side of the first coil part, and the first magnet parts are fixed on the welding arm.
The wire clamp comprises a fixed clamp and a movable clamp which can move left and right relatively to clamp a welding wire, a second elastic piece for connecting the middle part of the movable clamp and the fixed clamp is arranged between the middle part of the movable clamp and the fixed clamp, a second driving motor for driving the movable clamp to swing left and right is arranged between the tail part of the movable clamp and the fixed clamp, and the second driving motor is electrically connected with the controller.
The wire-feeding welding head capable of being continuously controlled comprises a first driving motor, a first coil part and a second coil part, wherein the first coil part is fixed at the tail part of a movable clamp, the first coil part is provided with a first magnet part, and the first magnet part is fixed on a fixed clamp.
The wire-feeding welding head capable of being continuously controlled is characterized in that the second elastic piece is a spring piece.
The wire feeding type welding head capable of being continuously controlled in position is characterized in that the welding arm is provided with a limiting structure for limiting the wire clamp, and the limiting structure comprises an upper limiting block which is positioned above the wire clamp and used for limiting the wire clamp upwards and a lower limiting block which is positioned below the wire clamp and used for limiting the wire clamp downwards.
The wire-feeding welding head capable of being continuously controlled is characterized in that the first elastic piece is a spring piece.
Compared with the prior art, the utility model discloses there is following advantage:
1. the utility model discloses a realize that the displacement of the relative welding arm of fastener can continuous control, use the first driving motor of controller accurate control. The first driving motor drives the tail of the wire clamp to swing up and down, and the first elastic piece is arranged between the middle of the wire clamp and the middle of the welding arm, so that the wire clamping position at the head of the wire clamp can swing up and down around the first elastic piece. The wire clamp head clamps the wire and pulls down a section length, then the wire clamp head return clamps the wire again, so realize the wire clamping, send a silk. The first driving motor can accurately control the up-and-down swinging displacement of the wire clamp head, so that the wire feeding length can be accurately controlled, in addition, the wire feeding length is controllable, and the wire feeding length is controlled by the controller, so that the relative displacement of the welding arm head and the wire clamp head is accurately controlled, and the continuous position control of the movement of the wire clamp head can be realized. Under the condition of not manually adjusting a mechanical structure, the digital control of the wire feeding length is realized so as to meet the requirements of different tail wire states (including tail wire length, tail wire direction, tail wire shape and the like) under different working conditions (different materials and thicknesses of metal wires, different welding area electrodes of a welding base body and the like).
2. In addition, due to the accurate control of the movement of the wire clamp, the wire clamp cannot impact upper and lower limiting points (upper limiting blocks and lower limiting blocks), mechanical impact and vibration caused by the remaining tail wire can be avoided, and the welding spot quality of the welding machine is improved.
3. Be equipped with the displacement sensor who is used for detecting fastener luffing motion range on the welding arm, displacement sensor and controller electric connection. The displacement sensor can feed back the detected displacement change of the wire clamp to the controller in real time, and the controller corrects the action of the first driving motor according to feedback information.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
FIG. 1 is a perspective view of the present invention;
fig. 2 is an exploded schematic view of the present invention;
fig. 3 is an exploded view of the clip.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
A continuously steerable wire feed welding head as shown in fig. 1 to 3 comprises a welding arm 1 for welding, a wire clamping assembly 2 for clamping and feeding wire, and a controller for controlling, the wire clamping assembly 2 comprising a wire clamp 21. The head of the wire clamp 21 is used for clamping wires, and the head of the welding arm 1 is provided with a porcelain nozzle for welding. Be equipped with the first elastic component 3 that has elasticity that connects the two between fastener 21 middle part and the welding arm 1 middle part, be equipped with the first driving motor 4 of drive fastener 21 luffing motion between fastener 21 afterbody and the welding arm 1, first driving motor 4 and controller electric connection.
Preferably, the first driving motor 4 may be a voice coil motor, a servo motor, a stepping motor, a piezoelectric ceramic, etc., so that the movement of the first driving motor 4 is relatively precise.
The utility model discloses a realize that the displacement of fastener 21 relative welding arm 1 can continuous control, use the first driving motor 4 of controller accurate control. The first driving motor 4 drives the tail part of the wire clamp 21 to swing up and down, and the first elastic piece 3 is arranged between the middle part of the wire clamp 21 and the middle part of the welding arm 1, so that the wire clamping position at the head part of the wire clamp 21 can swing up and down around the first elastic piece 3. The head of the wire clamp 21 clamps the wire and pulls the wire downwards for a certain length, and then the head of the wire clamp 21 returns to clamp the wire, so that wire clamping and wire feeding are realized.
The first driving motor 4 can accurately control the up-and-down swinging displacement of the head of the wire clamp 21, so that the wire feeding length can be accurately controlled, in addition, the wire feeding length is controllable and can be controlled by a controller, so that the relative displacement of the head of the welding arm 1 and the head of the wire clamp 21 is accurately controlled, and the continuous position control of the head movement of the wire clamp 21 can be realized. Under the condition of not manually adjusting a mechanical structure, the digital control of the wire feeding length is realized so as to meet the requirements of different tail wire states (including tail wire length, tail wire direction, tail wire shape and the like) under different working conditions (different materials and thicknesses of metal wires, different welding area electrodes of a welding base body and the like).
In addition, due to the accurate control of the movement of the wire clamp, the wire clamp cannot impact upper and lower limiting points (the upper limiting block 11 and the lower limiting block 12), mechanical impact and vibration caused by the remaining tail wire can be avoided, and the welding spot quality of the welding machine is improved.
More specifically, the welding arm 1 is provided with a displacement sensor 5 for detecting the vertical swing amplitude of the wire clamp 21, and the displacement sensor 5 is electrically connected with the controller. The displacement sensor 5 can feed back the detected displacement change of the wire clamp 21 to the controller in real time, and the controller corrects the action of the first driving motor 4 according to the feedback information, so that the structure is simple, the continuous position control of the wire feeding welding head, the precise control of the wire feeding speed, the automatic control of the wire feeding speed and the stable wire feeding can be realized.
Of course, if the first driving motor 4 is a stepping motor or a servo motor with precise movement, the displacement sensor 5 is not required.
More specifically, the wire clamp 21 is provided with a grating 51 at a position corresponding to the displacement sensor 5, and the grating is used in cooperation with a probe on the displacement sensor 5, so that the displacement of the wire clamp 21 can be accurately detected.
More specifically, the first driving motor 4 includes a first coil portion 41 fixed to the tail portion of the wire clamp 21, first magnet portions 42 are disposed on the front and rear sides of the first coil portion 41, and the first magnet portions 42 are fixed to the welding arm 1. The structure is simple, the wire clamp 21 tail part can swing up and down conveniently, and the displacement is easy to control accurately.
More specifically, the wire clamp 21 includes a fixed clamp 211 and a movable clamp 212 which can move left and right relatively to clamp the welding wire, a second elastic member 213 for connecting the middle of the movable clamp 212 and the fixed clamp 211 is arranged between the middle of the movable clamp 212 and the fixed clamp 211, a second driving motor 214 for driving the movable clamp 212 to swing left and right is arranged between the tail of the movable clamp 212 and the fixed clamp 211, and the second driving motor 214 is electrically connected with the controller.
The fixed clamp 211 and the movable clamp 212 can be relatively moved in the left and right directions, thereby clamping and unclamping the welding wire. The third driving motor 314 is a driving source for the movable clamp 212 to swing left and right.
More specifically, the second driving motor 214 includes a second coil portion 2141 fixed to the tail portion of the movable clamp 212, second magnet portions 2142 are disposed on the upper and lower sides of the second coil portion 2141, and the second magnet portions 2142 are fixed to the fixing clamp 211. Simple structure, low cost, easy control of the left and right swinging of the tail part of the movable clamp 212.
More specifically, the second elastic member 213 is a spring. Simple structure, with low costs, easy dismouting, shell fragment both ends can directly use the screw fastening.
More specifically, as shown in fig. 2, the welding arm 1 is provided with a limiting structure for limiting the wire clamp 21, and the limiting structure includes an upper limiting block 11 located above the wire clamp 21 and used for limiting the wire clamp 21 upwards, and a lower limiting block 12 located below the wire clamp 21 and used for limiting the wire clamp 21 downwards. Namely, the upper limiting block 11 and the lower limiting block 12 are respectively used for limiting the upward swinging limit and the downward swinging limit of the wire clamp 21, so as to avoid the swinging over the head.
More specifically, as shown in fig. 1 and 2, the first elastic element 3 is an elastic sheet. Simple structure, with low costs, easy dismouting, shell fragment both ends can directly use the screw fastening.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. The utility model provides a can position wire feed formula bonding tool of accuse in succession which characterized in that: including being used for the welded arm (1), being used for the double-layered line subassembly (2) of double-layered line and sending the line and being used for the controller of control, double-layered line subassembly (2) is including fastener (21), be equipped with between fastener (21) middle part and welding arm (1) middle part and connect the two elastic first elastic component (3) that have, fastener (21) afterbody and weld and be equipped with the first driving motor (4) of drive fastener (21) luffing motion between arm (1), first driving motor (4) and controller electric connection.
2. A continuously indexable wire feed welding head as set forth in claim 1, wherein: be equipped with displacement sensor (5) that are used for detecting fastener (21) luffing motion range on welding arm (1), displacement sensor (5) and controller electric connection.
3. A continuously indexable wire feed welding head as set forth in claim 2, wherein: and a grating (51) is arranged at the position of the wire clamp (21) corresponding to the displacement sensor (5).
4. A continuously indexable wire feed welding head as set forth in claim 1, wherein: first driving motor (4) are including fixing first coil portion (41) at fastener (21) afterbody, both sides are equipped with first magnet portion (42) around first coil portion (41), just first magnet portion (42) are all fixed on welding arm (1).
5. A continuously indexable wire feed welding head as set forth in claim 1, wherein: fastener (21) including can be relative about the activity in order to clip fixation clamp (211) and the activity clamp (212) of welding wire, be equipped with between activity clamp (212) middle part and fixation clamp (211) and connect second elastic component (213) of the two, be equipped with between activity clamp (212) afterbody and fixation clamp (211) drive activity clamp (212) horizontal hunting second driving motor (214), second driving motor (214) and controller electric connection.
6. The continuously indexable wire feed welding head of claim 5, wherein: the second driving motor (214) comprises a second coil part (2141) fixed at the tail of the movable clamp (212), second magnet parts (2142) are arranged on the upper side and the lower side of the second coil part (2141), and the second magnet parts (2142) are fixed on the fixed clamp (211).
7. A continuously indexable wire feed welding head as set forth in claim 6, wherein: the second elastic piece (213) is a spring piece.
8. A continuously indexable wire feed welding head as set forth in claim 1, wherein: be equipped with on welding arm (1) and be used for carrying out spacing limit structure to fastener (21), limit structure is including being used for going on going up spacing last stop block (11) and being located fastener (21) below being used for going on spacing lower stop block (12) down to fastener (21) that is located fastener (21) top.
9. A continuously indexable wire feed welding head as set forth in claim 1, wherein: the first elastic piece (3) is a spring piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121696744.3U CN214978397U (en) | 2021-07-23 | 2021-07-23 | Wire feeding type welding head capable of being continuously controlled in position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121696744.3U CN214978397U (en) | 2021-07-23 | 2021-07-23 | Wire feeding type welding head capable of being continuously controlled in position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214978397U true CN214978397U (en) | 2021-12-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121696744.3U Active CN214978397U (en) | 2021-07-23 | 2021-07-23 | Wire feeding type welding head capable of being continuously controlled in position |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214978397U (en) |
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2021
- 2021-07-23 CN CN202121696744.3U patent/CN214978397U/en active Active
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