A resistor assembly machine

Abstract

The present invention relates to a resistor assembly machine, including a frame, a resistor winding mechanism, which includes two resistor clamps and a driving mechanism; a resistor feeding mechanism, which includes a resistor clamp and a first driving member; a wire feeding mechanism, which includes a sliding frame, a swing frame and a wire feeding clamp, a second driving member is installed on the swing frame, a third driving member is installed on the frame, and a fourth driving member is installed on the sliding frame; a wire welding mechanism, which includes a welding head and a fifth driving member; the resistor clamp includes a pair of resistor clamp arms, which are a fixed clamp arm and a movable clamp arm, a swing rod is hinged on the fixed clamp arm through a hinge shaft, the lower end of the swing rod is connected to the front end of the movable clamp arm, an elastic puller I is provided between the upper end of the swing rod and the rear end of the fixed clamp arm to make the front parts of the two resistor clamp arms abut against each other; a support column is also provided at the upper end of the swing rod to make the swing rod drive the front part of the movable clamp arm to rotate downward and separate from the fixed clamp arm; and an elastic puller II and an elastic force adjusting member that can pull the wire feeding clamp. The resistor feeding is simple and fast, and the wire breaking effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of resistor assembly, in particular to a resistor assembly machine. Background Art

[0002] Patent No. CN201721752248 proposes a leadless resistor assembly machine, including a workbench, a bracket is longitudinally installed on the workbench, a servo motor, a first lower transmission wheel, a first upper transmission wheel, a transversely arranged first rotating shaft, and an upper motor are installed on one side of the bracket, and a second lower transmission wheel, a second upper transmission wheel, a transversely arranged second rotating shaft, and a transverse cylinder are installed on the other side of the bracket; the servo motor drives the first lower transmission wheel, the first lower transmission wheel is connected to the first upper transmission wheel through a belt, and the first rotating shaft is coaxial with the first upper transmission wheel; the second lower transmission wheel The wheel and the second upper transmission wheel are connected by a belt, the second rotating shaft is arranged opposite to the first rotating shaft, the second rotating shaft is coaxial with the second upper transmission wheel, and the transverse cylinder drives the second rotating shaft to move horizontally; the first lower transmission wheel and the second lower transmission wheel are arranged opposite to each other and are connected by a transmission shaft; a round rod feeding clamping arm is also installed on the workbench, the round rod feeding clamping arm is perpendicular to the first rotating shaft and the second rotating shaft at the same height, and is located between the first rotating shaft and the second rotating shaft, and the round rod feeding clamping arm is driven by the third cylinder; a wire feeding clamping arm is also installed on the bracket; a longitudinal cylinder is also installed on the bracket, and the lower end of the longitudinal cylinder drives the spot welding head. In the above-mentioned leadless resistor assembly machine, the resistor wire is loaded into the resistor machine through the wire feeding clamp arm and the round rod feeding clamp arm. The round rod feeding clamp arm is usually a mechanical arm. When used on the resistor assembly machine, it has the problems of large space occupation, inconvenient clamping operation and low work efficiency. The wire feeding clamp arm is usually driven to slide by a cylinder. After the resistor is welded, the cylinder drives the wire feeding clamp arm to pull the resistor wire back. The pulling force is slow and the resistor wire cannot be broken in time. A section of the resistor wire will be retained due to the pulling force, resulting in a waste of resources. Summary of the invention

[0003] Purpose of the invention: In order to overcome the defects of the prior art, the present invention provides a resistor assembly machine, which has a simple resistor clamping and feeding structure, fast operation, high work efficiency, and can quickly cut the resistor wire to avoid leaving excess resistor wire on the resistor.

[0004] The technical solution of the present invention is as follows: a resistor assembly machine comprises a frame, on which is provided: a resistor winding mechanism, which comprises two resistor clamping rods arranged opposite to each other and a driving mechanism for driving the two resistor clamping rods to respectively hold two ends of the resistor and drive the resistor to rotate; a resistor feeding mechanism, which comprises a resistor clamp and a first driving member driving the resistor clamp to slide and feed to one side of the resistor winding mechanism; a wire feeding mechanism, which comprises a sliding frame capable of sliding laterally, a swinging frame capable of sliding laterally synchronously with the sliding frame and capable of swinging relative to the sliding frame, and a wire feeding clamp located on the swinging frame and capable of passing the resistor wire through, a second driving member capable of driving the wire feeding clamp with the resistor wire passed through to slide and feed the wire to one side of the resistor winding mechanism, a third driving member capable of driving the sliding frame to slide laterally, and a fourth driving member capable of driving the swinging frame to swing the wire feeding clamp after the resistor wire is wound to the end of the resistor; a wire welding mechanism, which comprises A welding head mounted on the front of the sliding frame and a fifth driving member capable of driving the welding head to rise and fall and welding the resistor wire to the resistor end portion located between the two resistor clamping rods; the resistor winding mechanism is located in front of the resistor feeding mechanism, the resistor clamp comprises a pair of resistor clamping arms, the rear ends of which are hinged and have two states of opening and closing, the pair of resistor clamping arms are respectively a fixed clamping arm and a movable clamping arm, a swing rod is hinged on the fixed clamping arm via a hinge shaft, the lower end of the swing rod is connected to the front end of the movable clamping arm, and an elastic pulling member I is provided between the upper end of the swing rod and the rear end of the fixed clamping arm to make the front parts of the two resistor clamping arms abut against each other; the resistor feeding mechanism also comprises a supporting column for abutting against the upper end of the swing rod when the resistor clamp retreats, so that the swing rod drives the front part of the movable clamping arm to rotate downward and separate from the fixed clamping arm; the wire feeding mechanism also comprises: an elastic pulling member II capable of pulling the wire feeding clamp to slide back to the side away from the resistor winding mechanism and an elastic force adjusting member capable of adjusting the elastic force of the elastic pulling member II.

[0005] By adopting the above technical scheme, the resistor and the resistor wire are respectively loaded into the resistor winding mechanism through the resistor feeding mechanism and the wire feeding mechanism. When in use, the two resistor clamping arms are pulled by the elastic pulling member I to clamp the resistor, and then the first driving member drives the resistor clamping arm holding the resistor to load forward. The driving mechanism drives the two resistor clamping rods to clamp the resistor, and then the first driving member drives the resistor clamping arm to slide backward and leave the resistor winding mechanism. The upper end of the swing rod abuts against the upper end surface of the abutting column, so that the swing rod drives the front part of the movable clamping arm to rotate downward and separate from the fixed clamping arm to wait for the next loading of the resistor; the resistor wire is passed through the wire feeding clamp, and then the second driving member drives the wire feeding clamp with the resistor wire to slide onto one side of the resistor winding mechanism. At this time, the elastic pulling member II is stretched, and the welding head is driven to approach one side of the resistor winding mechanism through the fifth driving member, and the resistor wire is welded to one end of the resistor. Then, the fifth driving component is used to drive the welding head away from the resistor winding mechanism, and then the driving mechanism drives the two resistor clamping rods to drive the resistor to rotate, and at the same time, the sliding frame drives the wire feeding clamp and the welding head to slide synchronously horizontally, so that the resistor can be wound in the axial direction. After winding the wire to the other end of the resistor, the swing frame is used to drive the wire feeding clamp to rotate, so that the resistor wire at this end is offset, and then the fifth driving component is used to drive the welding head to one side of the resistor winding mechanism, and weld the offset resistor wire to the other end of the resistor, so as to complete the wire welding at both ends of the resistor. After welding, the fifth driving component is used to drive the welding head away from the resistor winding mechanism, and then the second driving component is used to drive the wire feeding clamp to leave the resistor, waiting for the next online work. At this time, the elastic puller II simultaneously pulls back the wire feeding clamp, so that the wire feeding clamp can quickly move away from the resistor, thereby realizing rapid disconnection of the resistor wire and avoiding excessive disconnection.

[0006] In the technical solution of the present invention, the structure of clamping the resistor and feeding the material is simple. The movable clamp arm swings and cooperates with the fixed clamp arm to realize fast clamping and feeding of the resistor, with high work efficiency. At the same time, the elastic puller II is added to realize fast disconnection of the resistor wire to avoid leaving excess resistor wire on the resistor. The elastic force of the elastic puller II can also be adjusted by the elastic force adjusting member to adapt to the disconnection requirements that require different pullback forces.

[0007] The present invention is further provided that: a cam is mounted on the upper end of the swing rod, the surface of the abutment column has a supporting surface that abuts against the outer periphery of the cam, and the supporting surface is arranged to be inclined upward.

[0008] By further configuring as described above, the outer circumferential surface of the cam can easily come into contact with the end surface of the support column, thereby achieving the swing of the rocker arm. At the same time, the supporting surfaces of the support column and the cam are inclined, thereby facilitating the lifting of the upper end of the rocker arm.

[0009] The present invention is further configured as follows: the resistor feeding mechanism also includes a feeding base, the support column is positioned and installed on the feeding base, the resistor clamp is slidably installed on the feeding base, the first driving member is installed on the feeding base, and its output end is connected to the rear end of the fixed clamp arm, the feeding base is hinged to the frame via a hinge, and can be rotated away from or close to the resistor clamp rod.

[0010] With the above further arrangement, the resistor feeding mechanism is hinged on the frame via the feeding platform, and can be rotated away from the resistor clamping rod, so as to facilitate passing the resistor wire out of the wire feeding clamp.

[0011] The present invention is further configured as follows: the swing frame includes a bracket I and a bracket II rotatably matched with the welding head, a mounting shaft is passed between the bracket I and the bracket II, the wire feeding clamp is slidably mounted on the mounting shaft via a slide, the second driving member is mounted on the bracket I, and its output end is connected to the slide, the two ends of the elastic pull member II are respectively connected to the elastic force adjustment member and the slide, and the elastic force adjustment member can drive the elastic pull member II to stretch toward one side of the bracket I.

[0012] By further configuring as described above, the swing frame has a simple structure and is convenient for mounting the elastic force adjusting member on the mounting plate, so as to drive the elastic pull member II to stretch toward the side away from the resistor clamping rod, thereby adjusting the elastic force of the elastic pull member II.

[0013] The present invention is further configured as follows: the elastic tension member II is a tension spring, the elastic adjustment member includes a pull rod and a pull ring rotatably arranged on the pull rod, the pull hook of the tension spring is hooked with the pull ring, the pull rod is threadedly connected to the bracket I, and the end of the pull rod passing through the bracket I is connected to the stepping motor.

[0014] With the above further configuration, the elastic force adjusting member has a simple structure, and the pull rod is driven to rotate by a stepping motor, so that the sliding distance of the pull rod is accurately controlled, thereby driving the elastic pull member II to stretch.

[0015] The present invention is further configured as follows: a vertical transmission shaft is provided on the bracket II, the fourth driving member is a cylinder, the cylinder body of the cylinder is positioned on the frame, the telescopic rod of the cylinder is sleeved on the transmission shaft, and the telescopic rod can drive the swing frame to rotate around the welding head.

[0016] With the above further arrangement, the telescopic rod of the cylinder can be extended and retracted to drive the swing frame to rotate around the welding head.

[0017] The present invention is further configured as follows: the wire feeding clamp includes a clamp seat, a wire feeding clamp arm and a wire outlet nozzle located at the end of the clamp seat, the clamp arm and the clamp seat cooperate to form a wire feeding channel, the wire outlet nozzle has a wire outlet hole connected to the wire feeding channel, and the sliding seat is provided with a sixth driving member for driving the wire feeding clamp arm to separate from the clamp seat when the resistor is wound.

[0018] With the above further arrangement, during winding, the sixth driving member drives the wire feeding clamp arm to separate from the clamp seat, which facilitates the wire outlet operation and can effectively prevent the resistor wire from being torn off during winding, while the wire outlet nozzle fixes the wire.

[0019] The present invention is further configured as follows: the frame includes two frame plates arranged opposite to each other, two resistance clamping rods are respectively installed on the inner sides of the two frame plates, a fixed shaft and a screw rod are horizontally installed between the two frame plates, the sliding frame can slide on the fixed shaft, and the back of the sliding frame has a nut that matches the screw thread, a third driving member drives the screw rod to rotate, and the nut drives the sliding frame to slide horizontally, and the welding head is installed on the front of the sliding frame.

[0020] By further adopting the above arrangement, the frame structure is simple, and the sliding frame can be driven to slide horizontally by driving the screw to rotate by the third driving member. At the same time, the wire feeding mechanism and the resistor feeding mechanism are separately arranged on both sides of the resistor clamping rod. The layout is reasonable, and the installation and operation of each component do not interfere with each other.

[0021] The present invention is further configured as follows: the assembly machine also includes a resistor material barrel, a vibration plate, a resistor feeding pipe and an air suction pipe, resistor feeding platforms are provided on both sides of the resistor clamp, the pipe joint of the resistor feeding pipe and the pipe joint of the air suction pipe are respectively passed through two resistor feeding platforms and are arranged opposite to each other, the inner diameter of the pipe joint of the air suction pipe is smaller than the outer diameter of the resistor, a resistor feeding area is formed between the two pipe joints, and the resistor clamp is arranged corresponding to the position of the resistor feeding area, and is used to clamp the resistor in the resistor feeding area.

[0022] With the above further configuration, the resistor barrel stores resistors, and discharges single resistors through the vibration plate to the resistor feeding pipe, the resistor feeding pipe supplies materials to the resistor feeding area, and the suction pipe sucks materials.

[0023] The present invention is further configured as follows: the assembly machine further comprises an upper thread shaft roller, an upper thread wheel and a plurality of guide wheel groups located between the upper thread shaft roller and the upper thread wheel, and the upper thread wheel is arranged corresponding to the inlet of the thread feeding channel of the thread feeding clamp.

[0024] By further adopting the above arrangement, a winding reel can be installed on the upper wire shaft roller, and the resistance wire is sequentially wound around the guide wheels in the guide wheel group, and then put on the feeding channel of the wire feeding clamp through the upper wire wheel pair. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a structural diagram of a specific embodiment of the present invention;

[0026] Figure 2 It is a structural diagram of one side of the wire feeding mechanism in a specific embodiment of the present invention, wherein the direction indicated by arrow a is right;

[0027] Figure 3 It is a structural diagram of one side of the resistor winding mechanism in a specific embodiment of the present invention;

[0028] Figure 4 It is a structural diagram of a resistor feeding mechanism in a specific embodiment of the present invention, wherein a pair of clamping arms are in an open state;

[0029] Figure 5 It is a structural diagram of a resistor feeding mechanism in a specific embodiment of the present invention, wherein a pair of clamping arms are in a closed state;

[0030] Figure 6 It is a structural diagram of a wire feeding mechanism in a specific embodiment of the present invention;

[0031] Figure 7 It is a connection structure diagram of the elastic force adjustment member and the elastic pull member II in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0032] The technical scheme in this embodiment will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that in the description of the present invention, all directional indications (such as up, down, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] like Figure 1-7As shown, a resistor assembly machine of the present invention comprises a frame 1, on which is provided: a resistor winding mechanism 2, which comprises two resistor clamping rods 21 arranged opposite to each other and a driving mechanism for driving the two resistor clamping rods 21 to respectively hold two ends of the resistor and drive the resistor to rotate, wherein the driving mechanism comprises a driving cylinder or electric cylinder for driving the two resistor clamping rods 21 to slide laterally closer or farther away, and a rotating motor for driving the two resistor clamping rods 21 to rotate; a resistor feeding mechanism 3, which comprises a resistor clamp 31 and a first driving member 32 for driving the resistor clamp 31 to slide and feed material to one side of the resistor winding mechanism 2; a wire feeding mechanism 4, which comprises a sliding frame 41 capable of sliding laterally, a swinging frame 42 capable of sliding laterally synchronously with the sliding frame 41 and capable of swinging relative to the sliding frame 41, and a wire feeding clamp 43 located on the swinging frame 42 and capable of allowing the resistor wire to pass through, a second driving member 44 capable of driving the wire feeding clamp 43 with the resistor wire passed through to slide the wire to one side of the resistor winding mechanism 2, and a second driving member 44 capable of driving the sliding frame 41 to slide laterally to feed the wire. The third driving member 45 is provided on the sliding frame 41, and after the resistance wire is wound to the end of the resistance, the fourth driving member 46 is driven by the swing frame 42 to drive the wire feeding clamp 43 to swing; the wire welding mechanism 5 includes a welding head 51 installed on the front of the sliding frame 41 and a fifth driving member 52 that can drive the welding head 51 to rise and fall and weld the resistance wire to the end of the resistance located between the two resistance clamping rods 21; the resistance winding mechanism 2 is located in front of the resistance feeding mechanism 3, and the resistance clamp 31 includes a pair of resistance clamps The rear end of the arm is hinged and has two states of opening and closing. The pair of resistor clamping arms are respectively a fixed clamping arm 311 and a movable clamping arm 312. Of course, the rear end can be the rear ends of the two clamping arms hinged, that is, the rear end of the movable clamping arm 312 can be hinged on the fixed clamping arm 311, and a swing rod 35 is hinged on the fixed clamping arm 311 through a hinge shaft 34. The lower end of the swing rod 35 is connected to the front end of the movable clamping arm 312, and an elastic puller I is provided between the upper end of the swing rod 35 and the rear end of the fixed clamping arm 311 to make the front parts of the two resistor clamping arms abut against each other. 36, the elastic pull member I 36 is a tension spring, and can also be other elastic members with elasticity; the resistor feeding mechanism 3 also includes a support column 37 for contacting the upper end of the swing rod 35 when the resistor clamp 31 retreats, so that the swing rod 35 drives the front part of the movable clamp arm 312 to rotate downward and separate from the fixed clamp arm 311; the wire feeding mechanism 4 also includes: an elastic pull member II 47 that can pull the wire feeding clamp 43 to slide back to the side away from the resistor winding mechanism 2 and an elastic force adjustment member 48 that can adjust the elastic force of the elastic pull member II 47; a cam 351 is installed on the upper end of the swing rod 35, and the surface of the support column 37 has a support surface 371 that contacts the outer periphery of the cam 351, and the support surface 371 is inclined upward and is an arc surface or an inclined surface;The resistor feeding mechanism 3 also includes a feeding platform 38, the support column 37 is positioned and installed on the feeding platform 38, the resistor clamp 31 is slidably installed on the feeding platform 38, the first driving member 32 is installed on the feeding platform 38, and its output end is connected to the rear end of the fixed clamp arm 311, the feeding platform 38 is hinged to the frame 1 through a hinge 39, and can be rotated away from or close to the resistor clamp rod 21; the swing frame 42 includes a bracket I 421 and a bracket II 422 that rotates with the welding head 51, a mounting shaft 423 is passed between the bracket I 421 and the bracket II 422, the wire feeding clamp 43 is slidably installed on the mounting shaft 423 through a slide 49, the second driving member 44 is installed on the bracket I 421, and its output end is connected to the slide 49, the elastic puller II The two ends of 47 are respectively connected to the elastic adjustment member 48 and the slide seat 49, and the elastic adjustment member 48 can drive the elastic pull member II 47 to stretch toward the side of the bracket I421; the elastic pull member II 47 is a tension spring, and the elastic adjustment member 48 includes a pull rod 481 and a pull ring 482 rotatably set on the pull rod 481, and the pull hook of the tension spring 47 is hooked with the pull ring 482, and the pull rod 481 is threadedly connected with the bracket I 421, and the end of the pull rod 481 passing through the bracket I 421 is connected to the stepping motor 40, and can also be connected to the hand wheel; the bracket II 422 is provided with a vertical transmission shaft 4221, the fourth driving member 46 is a cylinder, the cylinder body 461 of the cylinder 46 is positioned on the frame 1, the telescopic rod of the cylinder 1 is sleeved on the transmission shaft 4221, and the telescopic rod can drive the swing frame 42 to rotate around the welding head 51; there is a discharge table 8 below the resistance clamping rod 21, the discharge table 8 is installed on the sliding frame 41, and slides synchronously with it laterally, the discharge table 8 is inclined downward, and there are panels bent upward on both sides; the frame 1 includes two frame plates 11 arranged opposite to each other, the two resistance clamping rods 21 are respectively installed on the inner sides of the two frame plates 11, and a fixed shaft 13 and a screw 14 are installed laterally between the two frame plates 11, the sliding frame 41 can slide on the fixed shaft 13, and the back of the sliding frame 41 It has a nut 15 threadedly matched with the screw rod 14, the third driving member 45 is a forward and reverse motor that drives the screw rod 14 to rotate, the nut 15 drives the sliding frame 41 to slide horizontally, and the welding head 51 is installed on the front of the sliding frame 41, and the "front" is the side facing the resistor feeding; the wire feeding clamp 43 includes a clamp seat 431, a wire feeding clamp arm 432 and a wire outlet nozzle 433 located at the end of the clamp seat 431, the wire feeding clamp arm 432 cooperates with the clamp seat 431 to form a wire feeding channel, and the wire outlet nozzle 433 has a wire outlet hole that is conductive with the wire feeding channel, and the sliding seat 49 is equipped with a sixth driving member 434 that drives the wire feeding clamp arm 432 to separate from the clamp seat 431 when the resistor is wound, and the sixth driving member 434 is a cylinder or an electric cylinder;The assembly machine also includes a resistor barrel 61, a vibration plate 62, a resistor feeding pipe 63 and an air suction pipe 64. A resistor feeding platform 65 is provided on both sides of the resistor fixture 31. The pipe joints of the resistor feeding pipe 63 and the pipe joints of the air suction pipe 64 are respectively penetrated by two resistor feeding platforms 65 and arranged oppositely. The inner diameter of the pipe joint of the air suction pipe 64 is smaller than the outer diameter of the resistor. The air suction pipe 64 is connected to an air pump. A resistor feeding area is formed between the two pipe joints. The resistor fixture 31 is arranged corresponding to the position of the resistor feeding area and is used to clamp the resistor in the resistor feeding area. The assembly machine also includes an upper thread shaft roller 71, an upper thread wheel 72 and a plurality of guide wheel groups located between the upper thread shaft roller 71 and the upper thread wheel 72. The upper thread wheel 72 is arranged corresponding to the inlet of the wire feeding channel of the wire feeding fixture 43. The guide wheel group includes at least a first guide wheel corresponding to the upper thread shaft roller 71 and a second guide wheel located above the upper thread wheel 72. ;

[0035] During the preparation work, the resistor to be processed is added into the resistor barrel 61, and the pipe joints of the resistor feeding pipe 63 and the suction pipe 64 are respectively passed through two opposite resistor feeding platforms 65, and at the same time, the resistor clamp 31 is located behind the resistor feeding area, and the cam 351 at the upper end of the swing rod 35 is against the support surface 371 of the support column 37, so that the front parts of the two clamp arms are opened; the winding package is arranged on the upper bobbin roller 72, and the resistor wire is wound around the first guide wheel, the second guide wheel, and the upper wire wheel 72 in sequence, and then passed through the wire feeding channel of the wire feeding clamp 43, and after the feeding platform 38 rotates away from the resistor clamp rod 21, the resistor wire is pulled out from the wire outlet hole of the wire outlet nozzle 433;

[0036] During operation, the resistor is loaded to the resistor loading area through the resistor loading tube 63, and the first driving member 32 drives the resistor clamp 31 forward. At this time, the swing rod 35 leaves the support column 37, and the two resistor clamp arms clamp the resistor under the pulling force of the elastic pull member I 36. The two resistor clamp arms continue to load the resistor to the resistor winding mechanism 2, and the driving mechanism drives the two resistor clamp rods 21 to clamp the resistor. Then the first driving member 32 drives the resistor clamp arms to slide backward and leave the resistor winding mechanism 2, and the cam 351 at the upper end of the swing rod 35 is against the support surface 372 of the support column 37, so that the swing rod 35 drives the front part of the movable clamp arm 312 to rotate downward and separate from the fixed clamp arm 311, waiting for the next resistor loading;

[0037] The second driving member 44 drives the wire feeding fixture 43 with the resistor wire to slide onto the resistor winding mechanism 2. At this time, the elastic puller II 47 is stretched, and the fifth driving member 52 drives the welding head 51 to descend, and welds the resistor wire to the right end of the resistor. After welding, the fifth driving member 52 drives the welding head 51 to rise and move away from the resistor winding mechanism 2.

[0038] When winding the wire, the sixth driving member 434 drives the wire feeding clamp arm 432 to separate from the clamp seat 431, and then the driving mechanism drives the two resistor clamp rods 21 to drive the resistor to rotate. At the same time, the third driving member 45 rotates forward to drive the screw 14 to rotate, so that the sliding frame 41 drives the wire feeding clamp 43 and the welding head 51 to slide to the left synchronously, so that the resistor can be wound in the axial direction. After the wire is wound on the left end of the resistor, the telescopic rod of the cylinder 46 is extended to drive the swing frame 42 to swing around the welding head 51, so that the resistor wire at this end is offset, and then the fifth driving member 52 drives the welding head 51 to descend, and weld the offset resistor wire to the left end of the resistor, so as to complete the welding of the two ends of the resistor. After welding, the fifth driving member 52 drives the welding head 51 to rise away from the resistor winding mechanism to wait for the next welding.

[0039] Then, the sixth driving member 434 drives the wire feeding clamp arm 432 to descend and cooperate with the clamp seat 431 to clamp the resistor wire. The telescopic rod of the cylinder 46 is retracted to drive the swing frame 42 to swing back around the welding head 51, and the wire feeding clamp 43 can slide to the side away from the resistor winding mechanism 2. At this time, the elastic pulling member II 47 simultaneously pulls back the wire feeding clamp 43, so that the wire feeding clamp 43 can quickly move away from the resistor, realize the rapid disconnection of the resistor wire, and avoid the disconnection of the wire too long. The third driving member 45 is reversed to drive the screw 14 to rotate, so that the sliding frame 41 drives the wire feeding clamp 43 and the welding head 51 to slide back to the right synchronously, waiting for the next online work.

[0040] In the technical solution of the present invention, the structure of clamping the resistor for feeding is simple. The movable clamping arm 312 swings and cooperates with the fixed clamping arm 311 to realize fast clamping and feeding of the resistor, with high work efficiency. At the same time, the elastic puller II 47 is added to realize fast disconnection of the resistor wire to avoid leaving excess resistor wire on the resistor. The elastic force of the elastic puller II 47 can also be adjusted by the elastic force adjustment member 48. The pull rod 481 is driven to rotate by the stepping motor 40, and the sliding distance of the pull rod 481 is accurately controlled to drive the elastic puller II 47 to stretch to meet the disconnection requirements that require different pull-back forces.

Claims

1. A resistor assembly machine, comprising a frame, wherein the frame is provided with: The resistor winding mechanism comprises two resistor clamping rods arranged opposite to each other and a driving mechanism for driving the two resistor clamping rods to respectively hold two ends of the resistor and drive the resistor to rotate; The resistor feeding mechanism comprises a resistor clamp and a first driving member driving the resistor clamp to slide toward one side of the resistor winding mechanism to feed the resistor; The wire feeding mechanism comprises a sliding frame capable of sliding laterally, a swinging frame capable of sliding laterally synchronously with the sliding frame and swinging relative thereto, and a wire feeding clamp located on the swinging frame and capable of allowing the resistance wire to pass through, the swinging frame is provided with a second driving member capable of driving the wire feeding clamp with the resistance wire passed through to slide the wire toward one side of the resistance winding mechanism, the frame is provided with a third driving member capable of driving the sliding frame to slide laterally, and the sliding frame is provided with a fourth driving member capable of driving the swinging frame to swing the wire feeding clamp after the resistance wire is wound to the end of the resistance; The wire welding mechanism comprises a welding head mounted on the sliding frame and a fifth driving member capable of driving the welding head to rise and fall and welding the resistance wire to the end of the resistance located between the two resistance clamping rods; The resistor winding mechanism is located in front of the resistor feeding mechanism. Features: The resistor clamp comprises a pair of resistor clamp arms, the rear ends of which are hinged and have two states of opening and closing. The pair of resistor clamp arms are respectively a fixed clamp arm and a movable clamp arm. A swing arm is hinged on the fixed clamp arm via a hinge shaft. The lower end of the swing arm is connected to the front end of the movable clamp arm. An elastic puller I is provided between the upper end of the swing arm and the rear end of the fixed clamp arm to make the front parts of the two resistor clamp arms abut against each other. The resistor feeding mechanism also comprises a support column for abutting against the upper end of the swing arm when the resistor clamp retreats, so that the swing arm drives the front part of the movable clamp arm to rotate downward and separate from the fixed clamp arm. The wire feeding mechanism further comprises: an elastic puller II which can pull the wire feeding clamp to slide back to a side away from the resistor winding mechanism, and an elastic force adjusting member which can adjust the elastic force of the elastic puller II.

2. A resistor assembly machine according to claim 1, characterized in that: A cam is arranged on the upper end of the swing rod, and the surface of the abutment column has a supporting surface which abuts against the outer periphery of the cam, and the supporting surface is arranged to be inclined upward.

3. A resistor assembly machine according to claim 1 or 2, characterized in that: The resistor feeding mechanism also includes a feeding platform, the support column is positioned and installed on the feeding platform, the resistor clamp is slidably installed on the feeding platform, the first driving member is installed on the feeding platform, and its output end is connected to the rear end of the fixed clamp arm, and the feeding platform is hinged to the frame via a hinge and can be rotated away from or close to the resistor clamp rod.

4. A resistor assembly machine according to claim 1 or 2, characterized in that: The swing frame includes a bracket I and a bracket II that rotates with the welding head. A mounting shaft is passed between the bracket I and the bracket II. The wire feeding clamp is slidably mounted on the mounting shaft via a slide. The second driving member is mounted on the bracket I, and its output end is connected to the slide. The two ends of the elastic pull member II are respectively connected to the elastic force adjustment member and the slide. The elastic adjustment member can drive the elastic pull member II to stretch toward one side of the bracket I.

5. A resistor assembly machine according to claim 4, characterized in that: The elastic puller II is a tension spring, and the elastic force adjusting member includes a pull rod and a pull ring rotatably arranged on the pull rod, the pull hook of the tension spring is hooked with the pull ring, the pull rod is threadedly connected to the bracket I, and the end of the pull rod passing through the bracket I is connected to the stepping motor.

6. A resistor assembly machine according to claim 4, characterized in that: The bracket II is provided with a vertical transmission shaft, the fourth driving member is a cylinder, the cylinder body of the cylinder is positioned on the frame, the telescopic rod of the cylinder is sleeved on the transmission shaft, and the telescopic rod can drive the swing frame to rotate around the welding head.

7. A resistor assembly machine according to claim 4, characterized in that: The wire feeding clamp includes a clamp seat, a wire feeding clamp arm and a wire outlet nozzle located at the end of the clamp seat. The clamp arm and the clamp seat cooperate to form a wire feeding channel. The wire outlet nozzle has a wire outlet hole connected to the wire feeding channel. The sliding seat is equipped with a sixth driving member that drives the wire feeding clamp arm to separate from the clamp seat when the resistor is wound.

8. A resistor assembly machine according to claim 4, characterized in that: The frame includes two frame plates arranged opposite to each other, two resistance clamping rods are respectively installed on the inner sides of the two frame plates, a fixed shaft and a screw rod are horizontally installed between the two frame plates, the sliding frame can slide on the fixed shaft, and the back of the sliding frame has a nut that matches the screw thread. The third driving member drives the screw rod to rotate, and the nut drives the sliding frame to slide horizontally, and the welding head is installed on the front of the sliding frame.

9. A resistor assembly machine according to claim 1 or 2, characterized in that: The assembly machine also includes a resistor material barrel, a vibration plate, a resistor feeding pipe and an air suction pipe. Resistor feeding platforms are provided on both sides of the resistor clamp. The pipe joint of the resistor feeding pipe and the pipe joint of the air suction pipe are respectively passed through two resistor feeding platforms and are arranged opposite to each other. The inner diameter of the pipe joint of the air suction pipe is smaller than the outer diameter of the resistor. A resistor feeding area is formed between the two pipe joints. The resistor clamp is arranged corresponding to the position of the resistor feeding area, and is used to clamp the resistor in the resistor feeding area.

10. A resistor assembly machine according to claim 1 or 2, characterized in that: The assembly machine also includes an upper thread shaft roller, an upper thread wheel and a plurality of guide wheel groups located between the upper thread shaft roller and the upper thread wheel. The upper thread wheel is arranged corresponding to the inlet of the thread feeding channel of the thread feeding clamp.

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