AB servo electric roller wire conveying mechanism

Abstract

The AB servo electric roller wire conveying mechanism comprises an A servo electric roller unit and a B servo electric roller unit. The A servo electric roller unit comprises an A roller front-and-back movement sliding plate, an A roller front-and-back driving motor, an A roller transmission gear fixedly installed on a rotating shaft of the A roller front-and-back driving motor, an A roller front-and-back movement rack fixedly installed on the A roller front-and-back movement sliding plate and meshed with the A roller transmission gear, and an A servo electric roller. The B servo electric roller unit comprises a B roller front-and-back movement sliding plate, a B roller front-and-back driving motor, a B roller transmission gear fixedly installed on a rotating shaft of the B roller front-and-back driving motor, a B roller front-and-back movement rack fixedly installed on the B roller front-and-back movement sliding plate and meshed with the B roller transmission gear, and a B servo electric roller. The servo electric roller unit A and the servo electric roller unit B take up and pay off wires alternately, the roller structure and the wire arranging structure are coupled through an electronic gear function, and the wire arranging distance is adjustable.

Description

Technical Field

[0001] The utility model relates to electric spark wire cutting equipment. Background Art

[0002] Electrospark machining uses pulsed spark discharge to erode the material being machined. Because there is a liquid dielectric between the machining electrode and the material being machined, there is no contact, so a softer electrode (tool) can be used to machine hard and brittle metals and other conductors and semiconductor materials.

[0003] Moving wire electrode cutting is the most widely used process in EDM. Wire electrode cutting uses a wire electrode. Current equipment uses a single drum to transport the wire, which can only reel in or unreel the wire at a time, not simultaneously. The spacing of the wire wound around the drum cannot be adjusted. Existing equipment uses a travel switch to switch high-frequency signals. This switch detects wire breakage. Summary of the Invention

[0004] The technical problem to be solved by the utility model is: to overcome the problems existing in the existing electric spark wire cutting equipment, and to propose an AB servo electric drum wire transport mechanism, in which two drum units alternately collect and release the wire, and the drum structure and the wire arrangement structure are coupled by an electronic gear function, the wire arrangement spacing is adjustable, and the high-frequency signal of the control switch of the number of electrode wire turns on the drum can be read in real time, so that the constant tension of the electrode wire can be maintained and whether the wire is broken can be judged.

[0005] In order to solve the above technical problems, the utility model proposes the following technical solutions: an AB servo electric roller wire feeding mechanism includes an A servo electric roller unit and a B servo electric roller unit installed above the A servo electric roller unit;

[0006] The A servo electric roller unit includes a horizontal A roller linear guide rail, a plurality of A roller guide rail sliders mounted on the A roller linear guide rail and capable of sliding in the front-to-back direction, an A roller forward and backward motion slide plate mounted and fixed on the plurality of A roller guide rail sliders, an A roller forward and backward drive motor, an A roller transmission gear mounted and fixed on the rotating shaft of the A roller forward and backward drive motor, an A roller forward and backward motion rack mounted and fixed on the A roller forward and backward motion slide plate, an A roller front mounting seat and an A roller rear mounting seat respectively mounted and fixed on the A roller forward and backward motion slide plate, and an A servo electric roller mounted and capable of rotating between the A roller front mounting seat and the A roller rear mounting seat.

[0007] The A roller transmission gear and the A roller forward and backward motion rack are connected by gear meshing;

[0008] The B servo electric roller unit includes a horizontal B roller linear guide rail, a plurality of B roller guide rail blocks mounted on the B roller linear guide rail and capable of sliding in the front-rear direction, a B roller forward and backward motion slide plate mounted and fixed on the plurality of B roller guide rail blocks, a B roller forward and backward drive motor, a B roller transmission gear mounted and fixed on the rotating shaft of the B roller forward and backward drive motor, a B roller forward and backward motion rack mounted and fixed on the B roller forward and backward motion slide plate, a B roller front mounting seat and a B roller rear mounting seat respectively mounted and fixed on the B roller forward and backward motion slide plate at the front and rear portions thereof, and a B servo electric roller mounted and capable of rotating between the B roller front mounting seat and the B roller rear mounting seat.

[0009] The B roller transmission gear and the B roller forward and backward movement rack are connected by gear meshing.

[0010] A further limitation of the above technical solution is that the front and rear drive motors of roller A and roller B are both bus absolute servo motors, and the servo electric roller A and the servo electric roller B are each equipped with a bus absolute servo motor to drive their rotation.

[0011] The above technical solution is further limited in that the AB servo electric drum wire transport mechanism further includes a vertical column;

[0012] The A servo electric roller unit also includes an A roller fixed beam mounted on the vertical column, an A roller fixed block mounted on the A roller fixed beam, and an A roller guide rail mounting plate mounted on the A roller fixed block; the A roller linear guide rail is horizontally mounted and fixed on the A roller guide rail mounting plate;

[0013] The B servo electric roller unit also includes a B roller fixed beam installed and fixed on the vertical column and located above the A roller fixed beam, a B roller fixed block installed and fixed on the B roller fixed beam, and a B roller guide rail mounting plate installed and fixed on the B roller fixed block; the B roller linear guide is horizontally installed and fixed on the B roller guide rail mounting plate.

[0014] The above technical solution is further limited in that the A servo electric roller unit further includes an A roller front and rear drive motor mounting bracket mounted and fixed on the top of the A roller fixing block, and the A roller front and rear drive motor is mounted and fixed on the A roller front and rear drive motor mounting bracket;

[0015] The B servo electric roller unit also includes a B roller front and rear drive motor mounting bracket installed and fixed on the top of the B roller fixing block, and the B roller front and rear drive motor is installed and fixed on the B roller front and rear drive motor mounting bracket.

[0016] A further limitation of the above technical solution is that the A servo electric roller unit also includes an A roller wire fixing device, which includes an A roller wire fixing block that can move up and down.

[0017] The above technical solution is further limited in that an A roller wire fixing groove is provided on the top of the A roller wire fixing block along the up and down directions, and a V-shaped A roller wire guide opening is provided on the top of the A roller wire fixing groove.

[0018] The above technical solution is further limited in that the A-roller wire fixing device also includes a wire fixing device mounting base plate, a push-pull cylinder mounting bracket installed and fixed on the bottom of the wire fixing device mounting base plate, an upper and lower push-pull cylinder installed and fixed on the push-pull cylinder mounting bracket, a vertical wire fixing guide rail installed and fixed on the wire fixing device mounting base plate, a wire fixing slider installed on the wire fixing guide rail and capable of moving along the up and down directions, an up and down moving slide plate installed and fixed on the front side wall of the wire fixing slider and directly or indirectly installed and fixed on the upper and lower push-pull cylinder piston rods, and a wire fixing block installed and fixed on the up and down moving slide plate; the A-roller wire fixing block is installed and fixed on the wire fixing block fixing block.

[0019] A further limitation of the above technical solution is that the B servo electric roller unit also includes a B roller wire fixing device, which includes a B roller wire fixing clamp located on one side of the B servo electric roller.

[0020] The above technical solution is further limited in that a B roller wire fixing groove is provided on the B roller wire fixing clamp along the up and down directions, and a V-shaped B roller wire guide opening is provided on the top of the B roller wire fixing groove.

[0021] A further limitation of the above technical solution is that the AB servo electric roller wire transport mechanism also includes a plurality of wire pulleys that are installed and fixed between the A servo electric roller and the B servo electric roller and can rotate.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The AB servo electric roller wire feeding mechanism of the utility model is composed of two groups of roller units, namely the A servo electric roller unit and the B servo electric roller unit, which take up and release the wire alternately, replacing the single roller of the prior art equipment.

[0024] 2. Both the A servo electric roller unit and the B servo electric roller unit include a roller structure (A servo electric roller and B servo electric roller) and a wire arrangement structure (the wire arrangement structure is a structure for arranging the electrode wire on the surface of the A servo electric roller. The wire arrangement structure of the A servo electric roller unit consists of a roller forward and backward moving slide, a roller forward and backward driving motor, an A roller transmission gear, a roller forward and backward moving rack, and an A servo electric roller. The B servo electric roller unit is similar). The two structures are coupled by an electronic gear function, and the wire arrangement spacing is adjustable. In contrast, the single roller of the existing technical equipment relies on mechanical gear coupling between the roller and the screw rod for wire arrangement, and the wire arrangement spacing cannot be adjusted.

[0025] 3. Both the above-mentioned roller structure and wire arrangement structure adopt bus absolute value servo motor, which can read the number of electrode wire turns on the roller in real time and control the switch high-frequency signal according to the number of turns; instead of the existing technical equipment using a travel switch to switch the high-frequency signal.

[0026] 4. When the A servo electric roller unit is collecting the wire, the A servo electric roller unit adopts the servo motor position mode to control traction, and the B servo electric roller unit adopts the servo motor torque mode to reversely pull and release the wire to maintain constant tension of the electrode wire; conversely, when the B servo electric roller unit is collecting the wire, the B servo electric roller unit adopts the servo motor position mode to control traction, and the A servo electric roller unit adopts the servo motor torque mode to reversely pull and release the wire to maintain constant tension of the electrode wire; the A servo electric roller unit and the B servo electric roller unit take up and release the wire alternately.

[0027] 5. By reading the absolute value of the number of motor turns of the A servo electric roller of the A servo electric roller unit and the B servo electric roller of the B servo electric roller unit, it can be determined whether the wire is broken; replacing the existing technical equipment to detect whether the wire is broken through the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an exploded view of the AB servo electric drum wire transport mechanism of the utility model.

[0029] Figure 2 It is a three-dimensional diagram of the AB servo electric drum wire transport mechanism of the utility model.

[0030] Figure 3 This is another stereoscopic view of the AB servo electric roller wire transport mechanism of the present invention.

[0031] Figure 4 This is a three-dimensional diagram of the A roller wire block.

[0032] Figure 5 This is a three-dimensional diagram of the B roller wire clamp. DETAILED DESCRIPTION

[0033] See also Figures 1 to 5 An AB servo electric roller wire conveying mechanism includes a vertical column 9, an A servo electric roller unit 1, a first wire wheel 4, a second wire wheel 5 and a B servo electric roller unit 6 installed on the upper left of the A servo electric roller unit 1.

[0034] The vertical columns 9 are installed and fixed vertically.

[0035] The A servo electric roller unit 1 includes an A roller fixed beam 11 mounted on the front side wall of the vertical column 9, an A roller fixed block 13 mounted on the right end of the A roller fixed beam 11, an A roller guide rail mounting plate 15 mounted on the right end of the A roller fixed block 13, an A roller linear guide 17 mounted horizontally on the right side wall of the A roller guide rail mounting plate 15, two A roller guide sliders 19 mounted on the A roller linear guide 17 and capable of sliding on the A roller linear guide 17 along the front and rear directions, an A roller forward and backward movement slide plate 21 mounted on the right side walls of the two A roller guide sliders 19, and an A roller forward and backward drive motor mounting bracket 23 mounted on the top of the A roller fixed block 13. , the A-roller front and rear drive motor 25 installed and fixed on the A-roller front and rear drive motor mounting bracket 23, the A-roller transmission gear 27 installed and fixed on the rotating shaft (unnumbered) of the A-roller front and rear drive motor 25, the A-roller front and rear movement rack 29 installed and fixed on the left side wall of the A-roller front and rear movement slide 21 and located above the two A-roller guide sliders 19, the A-roller front mounting seat 31 and the A-roller rear mounting seat 33 installed and fixed on the right side wall of the A-roller front and rear movement slide 21 at the front and rear parts respectively, the A-servo electric roller 35 installed between the A-roller front mounting seat 31 and the A-roller rear mounting seat 33 and capable of rotating, and the A-roller wire fixing device 37 installed and fixed on the right end part of the A-roller fixed beam 11.

[0036] The A roller transmission gear 27 and the A roller forward and backward movement rack 29 are connected by gear meshing. When the A roller forward and backward drive motor 25 is started, its rotating shaft (unnumbered) rotates to drive the A roller transmission gear 27 to rotate, driving the A roller forward and backward movement rack 29 and the A roller forward and backward movement slide 21 to move horizontally along the forward and backward direction. The two A roller guide sliders 19 slide along the forward and backward direction on the A roller linear guide 17, which helps to improve the stability of the A roller forward and backward movement slide 21 and the various components directly and indirectly mounted on the A roller forward and backward movement slide 21 when running in the forward and backward direction.

[0037] The A-roller front and rear drive motor 25 is a bus absolute value servo motor. A servo electric roller 35 is equipped with a bus absolute value servo motor (not shown) that can drive it to rotate and wind the electrode wire 1000 on the roller surface.

[0038] The A-roller wire fixing device 37 includes a wire fixing device mounting base 371, a push-pull cylinder mounting bracket 372 installed and fixed on the bottom of the wire fixing device mounting base 371, an upper and lower push-pull cylinder 373 installed and fixed on the push-pull cylinder mounting bracket 372, a vertical wire fixing guide rail 374 installed and fixed on the front side wall of the wire fixing device mounting base 371, a wire fixing slider 375 installed on the wire fixing guide rail 374 and capable of moving in the up and down directions, an up and down moving slide plate 376 installed and fixed on the front side wall of the wire fixing slider 375 and directly or indirectly fixed to the piston rod (not shown in the figure) of the upper and lower push-pull cylinder 373, a wire fixing block fixed on the right end of the up and down moving slide plate 376, and an A-roller wire fixing block 378 installed and fixed on the wire fixing block fixed block 377.

[0039] An A-roller wire-fixing groove 3781 is provided on the top of the A-roller wire-fixing block 378 along the up-down direction, and a triangle is dug out from the top of the A-roller wire-fixing groove 3781 to form a V-shaped A-roller wire opening 3782.

[0040] The first wire pulley 4 and the second wire pulley 5 are both installed between the A servo electric roller unit 1 and the B servo electric roller unit 6.

[0041] The first guide wheel 4 is mounted on the left end of the A roller fixed beam 11 and is rotatable therein.

[0042] The second wire pulley 5 is rotatably mounted above the first wire pulley 4. The second wire pulley 5 can accommodate the wire electrode 1000.

[0043] The B servo electric roller unit 6 includes a B roller fixed beam 61 mounted on the front side wall of the vertical column 9 and located above the A roller fixed beam 11, a B roller fixed block 63 mounted on the left side of the B roller fixed beam 61, a B roller guide rail mounting plate 64 mounted on the left end of the B roller fixed block 63, a B roller linear guide 65 mounted horizontally on the left side wall of the B roller guide rail mounting plate 64, two B roller guide rail sliders 67 mounted on the B roller linear guide 65 and capable of sliding on the B roller linear guide 65 in the front and rear directions, a B roller forward and backward movement slide plate 69 mounted on the left side walls of the two B roller guide rail sliders 67, and a B roller forward and backward drive motor mounting bracket 71 mounted on the top of the B roller fixed block 63. , a B roller front and back drive motor 73 mounted and fixed on the B roller front and back drive motor mounting bracket 71, a B roller transmission gear 75 mounted and fixed on the rotating shaft (unnumbered) of the B roller front and back drive motor 73, a B roller front and back movement rack 77 mounted and fixed on the right side wall of the B roller front and back movement slide 69 and located above the two B roller guide sliders 67, a B roller front mounting seat 79 and a B roller rear mounting seat 81 respectively mounted and fixed on the left side wall of the B roller front and back movement slide 69 at the front and rear parts, a B servo electric roller 83 mounted and rotatable between the B roller front mounting seat 79 and the B roller rear mounting seat 81, and a B roller wire fixing device 85 mounted and fixed on the left end portion of the B roller fixed beam 61 and located on the left side of the B servo electric roller 83.

[0044] The B roller transmission gear 75 and the B roller front and back movement rack 77 are connected by gear meshing. When the B roller front and back drive motor 73 is started, its rotating shaft (unnumbered) rotates to drive the B roller transmission gear 75 to rotate, driving the B roller front and back movement rack 77 and the B roller front and back movement slide 69 to move horizontally along the front and back direction. The two B roller guide sliders 67 slide along the front and back direction on the B roller linear guide 65, which helps to improve the stability of the B roller front and back movement slide 69 and the various components directly and indirectly mounted on the B roller front and back movement slide 69 when running in the front and back direction.

[0045] The B roller front and rear drive motor 73 is a bus absolute value servo motor. The B servo electric roller 83 is equipped with a bus absolute value servo motor (not shown) that can drive it to rotate and wind the electrode wire 1000 on the roller surface.

[0046] The B roller wire fixing device 85 includes a B roller wire fixing clamp 851 installed and fixed on the left side of the B servo electric roller 83.

[0047] A B roller wire fixing groove 8512 is provided on the B roller wire fixing clamp 851 along the up and down direction, and a triangle is dug out from the top of the B roller wire fixing groove 8512 to form a V-shaped B roller wire opening 8514.

[0048] During operation, the B servo roller 83 is located at the upper left position of the A servo roller 35, and the first wire pulley 4 and the second wire pulley 5 are both installed and fixed between the A servo roller 35 and the B servo roller 83. The electrode wire 1000 coming out of the A servo roller 35 is fixed by the A roller wire fixing block 378, then passes around the first wire pulley 4, then passes upward around the second wire pulley 5, and then passes through the B roller wire fixing clamp 851 to be fixed before being wound around the B servo roller 83. In the first half of the working cycle, the A servo electric roller 35 located at the bottom collects the wire, and the B servo electric roller 83 located at the top releases the wire. In the second half of the production cycle, the wire is transported in the opposite direction, that is, the A servo electric roller 35 located at the bottom releases the wire, and the B servo electric roller 83 located at the top collects the wire. Or conversely, in the first half of the working cycle, the A servo electric roller 35 located at the bottom releases the wire, and the B servo electric roller 83 located at the top collects the wire. In the second half of the production cycle, the wire is transported in the opposite direction, that is, the A servo electric roller 35 located at the bottom collects the wire, and the B servo electric roller 83 located at the top releases the wire. Then the next working cycle is carried out again and the operation is repeated. The function of the A roller wire fixing block 378 and the B roller wire fixing device 85 is to accurately position the electrode wire 1000.

[0049] The utility model has the following beneficial effects:

[0050] 1. The AB servo electric roller wire feeding mechanism of the present invention is composed of two groups of roller units, namely the A servo electric roller unit 1 and the B servo electric roller unit 6, which take up and release the wire alternately, replacing the single roller of the prior art equipment.

[0051] 2. Both the A servo electric roller unit 1 and the B servo electric roller unit 6 include a roller structure (rotatable A servo electric roller 35 and B servo electric roller 83) and a wire arrangement structure (the wire arrangement structure is a structure for arranging the electrode wire 1000 on the surface of the A servo electric roller 35. The wire arrangement structure of the A servo electric roller unit 1 is composed of an A roller forward and backward moving slide 21, an A roller forward and backward driving motor 25, an A roller transmission gear 27, an A roller forward and backward moving rack 29 and an A servo electric roller 35. The B servo electric roller unit 6 is similar). The two structures are coupled by an electronic gear function, and the wire arrangement spacing is adjustable. In contrast, the single roller of the prior art equipment relies on mechanical gear coupling between the roller and the screw rod for wire arrangement, and the wire arrangement spacing cannot be adjusted.

[0052] 3. Both the above-mentioned roller structure and wire arrangement structure adopt bus absolute value servo motor, which can read the number of 1000 turns of the electrode wire on the roller in real time and control the switch high-frequency signal according to the number of turns; instead of the existing technical equipment using a travel switch to switch the high-frequency signal.

[0053] 4. When the A servo electric roller unit 1 is collecting the wire, the A servo electric roller unit 1 adopts the servo motor position mode to control traction, and the B servo electric roller unit 6 adopts the servo motor torque mode to reversely pull and release the wire, maintaining a constant tension of 1000 for the electrode wire; conversely, when the B servo electric roller unit 6 is collecting the wire, the B servo electric roller unit 6 adopts the servo motor position mode to control traction, and the A servo electric roller unit 1 adopts the servo motor torque mode to reversely pull and release the wire, maintaining a constant tension of 1000 for the electrode wire; the A servo electric roller unit 1 and the B servo electric roller unit 6 retract and release the wire alternately.

[0054] 5. By reading the absolute value of the number of motor turns of the A servo electric roller 35 of the A servo electric roller unit 1 and the B servo electric roller 83 of the B servo electric roller unit 6, it can be determined whether the wire is broken; replacing the existing equipment that detects whether the wire is broken through a switch.

Claims

1. An AB servo electric drum wire transport mechanism, characterized in that: It comprises an A servo electric roller unit (1) and a B servo electric roller unit (6) installed above the A servo electric roller unit (1); The A servo electric roller unit (1) includes a horizontal A roller linear guide rail (17), a plurality of A roller guide rail sliders (19) mounted on the A roller linear guide rail (17) and capable of sliding in the front-back direction, an A roller front-back motion slide plate (21) mounted and fixed on the plurality of A roller guide rail sliders (19), an A roller front-back driving motor (25), an A roller transmission gear (27) mounted and fixed on the rotating shaft of the A roller front-back driving motor (25), an A roller front-back motion rack (29) mounted and fixed on the A roller front-back motion slide plate (21), an A roller front mounting seat (31) and an A roller rear mounting seat (33) respectively mounted and fixed on the front and rear portions of the A roller front-back motion slide plate (21), and an A servo electric roller (35) mounted between the A roller front mounting seat (31) and the A roller rear mounting seat (33) and capable of rotating. The A roller transmission gear (27) and the A roller forward and backward motion rack (29) are connected by gear meshing; The B servo electric roller unit (6) includes a horizontal B roller linear guide rail (65), a plurality of B roller guide rail sliders (67) mounted on the B roller linear guide rail (65) and capable of sliding in the front-back direction, a B roller front-back motion slide plate (69) mounted and fixed on the plurality of B roller guide rail sliders (67), a B roller front-back driving motor (73), a B roller transmission gear (75) mounted and fixed on the rotating shaft of the B roller front-back driving motor (73), a B roller front-back motion rack (77) mounted and fixed on the B roller front-back motion slide plate (69), a B roller front mounting seat (79) and a B roller rear mounting seat (81) respectively mounted and fixed on the front and rear portions of the B roller front-back motion slide plate (69), and a B servo electric roller (83) mounted between the B roller front mounting seat (79) and the B roller rear mounting seat (81) and capable of rotating; The B roller transmission gear (75) and the B roller forward and backward movement rack (77) are connected by gear meshing.

2. The AB servo electric drum wire feeding mechanism according to claim 1 is characterized in that: The front and rear drive motors (25) of the A roller and the front and rear drive motors (73) of the B roller are both bus absolute value servo motors, and the A servo electric roller (35) and the B servo electric roller (83) are each equipped with a bus absolute value servo motor for driving the rotation thereof.

3. The AB servo electric drum wire feeding mechanism according to claim 1, characterized in that: The AB servo electric roller wire transport mechanism also includes a vertical column (9); The A servo electric roller unit (1) further comprises an A roller fixed beam (11) mounted on the vertical column (9), an A roller fixed block (13) mounted on the A roller fixed beam (11), and an A roller guide rail mounting plate (15) mounted on the A roller fixed block (13); the A roller linear guide rail (17) is mounted horizontally on the A roller guide rail mounting plate (15); The B servo electric roller unit (6) further comprises a B roller fixed beam (61) mounted on the vertical column (9) and located above the A roller fixed beam (11), a B roller fixed block (63) mounted on the B roller fixed beam (61), and a B roller guide rail mounting plate (64) mounted on the B roller fixed block (63); and a B roller linear guide rail (65) is mounted and fixed horizontally on the B roller guide rail mounting plate (64).

4. The AB servo electric drum wire feeding mechanism according to claim 3 is characterized in that: The A servo electric roller unit (1) further includes an A roller front and rear drive motor mounting bracket (23) mounted and fixed on the top of the A roller fixing block (13), and the A roller front and rear drive motor (25) is mounted and fixed on the A roller front and rear drive motor mounting bracket (23); The B servo electric roller unit (6) further includes a B roller front and rear drive motor mounting bracket (71) mounted and fixed on the top of the B roller fixing block (63), and the B roller front and rear drive motor (73) is mounted and fixed on the B roller front and rear drive motor mounting bracket (71).

5. The AB servo electric drum wire feeding mechanism according to claim 1, characterized in that: The A servo electric roller unit (1) further comprises an A roller wire fixing device (37), which comprises an A roller wire fixing block (378) capable of moving up and down.

6. The AB servo electric drum wire feeding mechanism according to claim 5, characterized in that: The top of the A roller wire block (378) is provided with an A roller wire groove (3781) extending in the up-down direction, and the top of the A roller wire groove (3781) is provided with a V-shaped A roller wire opening (3782).

7. The AB servo electric drum wire transport mechanism according to claim 5 or 6, characterized in that: The A-roller wire fixing device (37) further comprises a wire fixing device mounting base (371), a push-pull cylinder mounting bracket (372) mounted and fixed on the bottom of the wire fixing device mounting base (371), an upper and lower push-pull cylinder (373) mounted and fixed on the push-pull cylinder mounting bracket (372), a vertical wire fixing guide rail (374) mounted and fixed on the wire fixing device mounting base (371), a wire fixing slider (375) mounted on the wire fixing guide rail (374) and capable of moving in the upper and lower directions, an upper and lower moving slide plate (376) mounted and fixed on the front side wall of the wire fixing slider (375) and directly or indirectly mounted and fixed on the piston rod of the upper and lower push-pull cylinder (373), and a wire fixing block (377) mounted and fixed on the upper and lower moving slide plate (376); the A-roller wire fixing block (378) is mounted and fixed on the wire fixing block fixing block (377).

8. The AB servo electric drum wire feeding mechanism according to claim 1, characterized in that: The B servo electric roller unit (6) further includes a B roller wire fixing device (85), which includes a B roller wire fixing clamp (851) located on one side of the B servo electric roller (83).

9. The AB servo electric drum wire feeding mechanism according to claim 8, characterized in that: The B roller wire clamp (851) is provided with a B roller wire groove (8512) extending in the up-down direction, and a V-shaped B roller wire opening (8514) is provided at the top of the B roller wire groove (8512).

10. The AB servo electric drum wire feeding mechanism according to claim 1, characterized in that: The AB servo electric roller wire transport mechanism further comprises a plurality of rotatable wire pulleys which are fixed between the A servo electric roller (35) and the B servo electric roller (83).

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