Automatic wire stripping machine

Abstract

The invention relates to the technical field of automatic wire stripping machines, and discloses an automatic wire stripping machine which comprises a mainframe box used for installing the following electrical and mechanical parts; the adjusting clamping part comprises at least two wire clamping wheels which are paired into one group and is used for driving the wire to move in a wire clamping state, and the distance between the wire clamping wheels is adjustable; and the sleeve limiting part comprises a plurality of wire guide cylinders with different inner diameters and a wheel carrier, the wire guide cylinders are annularly arrayed outside the wheel carrier, the single wire guide cylinder can be selectively matched with the wire clamping wheel for use, and the wheel carrier is driven by a driving motor arranged in the mainframe box. A plurality of electric wires with different diameters in a specified specification range can be clamped through the electric wire clamping wheels with the adjustable intervals, the wire guide cylinders with different inner diameters are arranged in a matched mode, the electric wires are clamped and driven through the electric wire clamping wheels, and the tail ends of the electric wires are limited through the wire guide cylinders.

Description

Technical Field

[0001] This invention relates to the field of automatic wire stripping machine technology, and in particular to an automatic wire stripping machine. Background Technology

[0002] Chinese Patent Publication No. CN118970749B discloses a wire stripping machine suitable for wires of different thicknesses. The machine includes an operating body comprising a drive unit. The drive unit is slidably connected to a clamping member connected to the outer end of the wire via an electric track disposed on its outer side. The stripping part includes a ring sleeve connected to the output end of the drive unit via a connecting bracket disposed on its side. This wire stripping machine effectively solves the problem in existing technologies where the wire is first inserted into the stripping machine, ensuring it is in the correct position and fixed, then the wire is gently pulled through the blades, ensuring close contact between the blades and the insulation layer, and finally the stripping machine is started, with the blades automatically peeling off the insulation layer. However, the peeled insulation layer still needs to be manually removed afterward, which is cumbersome and detrimental to automated production cycles.

[0003] However, after research, we found several shortcomings in its actual use. Firstly, it clamps the end of the wire using 135 and drives 13 using 1311, thereby rotating the wire. However, the actual cutting position is set at 234 on 21, which, combined with its attachments... Figure 2 We can see that the distance between the cutting position and the clamped rotation position is very far. However, the wire is not a rigid rod. Over such a long distance, the wire itself will be twisted and deformed under torque, which will seriously affect the cutting depth and shape. In addition, the device can only make a circumferential cut on the wire insulation layer through 234, and cannot remove the unwanted part of the insulation layer. It still needs to be handled manually. For shorter cases, it can be pulled out directly by force. For longer cases, it is difficult to pull out the whole thing due to the large resistance (the numerical references in the background art are consistent with those in the above patent specification).

[0004] This case is proposed to address or improve upon the shortcomings or deficiencies of existing technologies. Summary of the Invention

[0005] This invention is achieved by the following technical solution: An automatic wire stripping machine includes a main unit housing for mounting the following electrical and mechanical components; The adjustable clamping part includes at least two wire clamping wheels paired together, used to drive the wire to move while clamping the wire, and the distance between the wire clamping wheels is adjustable; The sleeve limiting part includes a plurality of wire tubes with different inner diameters and a wheel frame. The wire tubes are arranged in a ring outside the wheel frame and can be selectively paired with the wire clamping wheel. The wheel frame is driven by a drive motor configured in the main unit housing. The adjustable circumferential cutting section includes a tool holder driven by a motor and linear electric push rods symmetrically arranged on the tool holder. A conductive slip ring is configured on the main unit. The conductive slip ring and the tool holder's rotating shaft are coaxial. The conductive slip ring's wire is led out and fixed to the tool holder by a plastic cable tie, and communicates with the linear electric push rod, thereby enabling power supply to the linear electric push rod while the tool holder can rotate. The movable end of the linear electric push rod is threadedly connected to a threaded blade holder. The threaded blade holder moves to a suitable position under the drive of the linear electric push rod to penetrate the insulation layer of the wire to a suitable depth. Then, the tool holder rotates to perform circumferential cutting. The control system is configured on the main chassis to control the aforementioned components.

[0006] In a preferred embodiment, the adjusting clamping part includes a double helix screw rotatably disposed inside the main unit housing, and a motorized box with a motor inside for driving the wire clamping wheel to rotate. The motorized box is slidably disposed inside the main unit housing, and a screw nut is fixedly disposed on the motorized box. The screw nuts on the upper and lower motorized boxes are threadedly connected to the double helix screw, and when the double helix screw moves, the upper and lower motorized boxes simultaneously move closer or separate to achieve the purpose of adjusting the clamping distance of the wire clamping wheel. The motor power supply line inside the motor box uses a spiral wire, which allows the motor box to move within a specified range without interference.

[0007] In a preferred embodiment, the main unit is equipped with a clamping wheel adjustment drive motor, and the output shaft of the clamping wheel adjustment drive motor is connected to a drive gear. The drive gear meshes with a driven gear coaxially fixed to the shaft end of a double helical screw, so that the clamping distance of the wire clamping wheel is adjusted under the drive of the clamping wheel adjustment drive motor.

[0008] In a preferred embodiment, the conductor tube is a through-tube structure, with an flared design on the side near the wire clamp wheel to facilitate wire insertion, and the inner diameter of the conductor tube is clearance-fitted with the corresponding wire.

[0009] In a preferred embodiment, at least two wire stripping blades are provided at an annular interval inside the wire tube. The wire stripping blades are obliquely arranged inside the wire tube. Each wire stripping blade includes a triangular elastic metal sheet and an embedded mounting block fixed to the tail end of the elastic metal sheet. The embedded mounting block is embedded in the inner wall of the wire tube. The working front end of the elastic metal sheet has an arc-shaped surface, and a bent blade is fixed on the elastic metal sheet near the inner wall of the wire tube. When the wire being processed is inserted into the wire tube, it can pass through the wire stripping blades. After circumferential cutting, a circumferential cut is formed, which is then used... With the threaded blade inserted into the insulation layer, the wire being processed is pulled back to widen the lateral width of the circumferential cut. When the wire being processed is pulled out by the wire clamping wheel in the opposite direction, the front end of the elastic metal plate engages with the circumferential cut and then, with further movement, pierces under the insulation layer of the wire being processed. Then, the tubular insulation layer is pierced open by the bent blade. This can handle situations where the circumferential cut position is far from the end of the wire and it is inconvenient to directly pull out the insulation layer. The relevant dimensions of the stripping blade in each wire cylinder should be customized according to the insulation layer thickness of the corresponding wire being processed.

[0010] In a preferred embodiment, the main unit is equipped with a motor that drives the ring cutting drive gear to rotate, and the tail end of the tool holder is customized with a ring cutting drive driven gear, which meshes with the ring cutting drive drive gear.

[0011] In a preferred embodiment, the main unit is also equipped with a waste collection box located directly below the blade holder for collecting the stripped insulation layer.

[0012] The advantages and positive effects of this invention are: First, the adjustable-spacing wire clamping wheels can clamp several wires of different diameters within a specified range. It is also equipped with wire cylinders of different inner diameters. The wire clamping wheels clamp and drive the wires, while the wire cylinders restrict the ends of the wires. The threaded blade holder of this device is positioned close to the end of the wire cylinder, enabling better circumferential cutting of the wires. For insulation sleeves with a cutting length less than five times the wire diameter, the wire clamping wheels can be directly reversed to pull them out using the threaded blade holder, as the threaded blade holder is a rigid structure and creates a certain pulling force when cutting into the insulation sleeve.

[0013] For longer cuts, the wire stripper built into the wire cylinder is inserted into the circumferential cut, and then the wire clamping wheel pulls the wire out in the opposite direction. The end of the elastic metal plate is inserted under the insulation layer, and the curved blade is used to cut the insulation layer longitudinally into two halves for easy removal. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention (with the metal cover above the driven gear removed). Figure 3 This is a side view of the structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the guide tube in this invention; Figure 5 This is a schematic diagram of the internal structure of the conductor tube in this invention (illustrated with a processed wire). Figure 6 This is an enlarged structural schematic diagram of the peeling and sharpening tool in this invention; Figure 7 This is an enlarged structural schematic diagram of the peeling and sharpening tool in this invention.

[0016] The attached diagram shows the following components: 10. Waste collection box; 11. Control system; 12. Ring cutting drive gear; 13. Conductive slip ring; 14. Ring cutting drive driven gear; 15. Tool holder; 16. Linear electric actuator; 17. Threaded tool holder with cutting edge; 18. Clamping wheel adjustment drive motor; 19. Wire clamping wheel; 20. Arc-shaped surface; 21. Motorized box; 22. Double helical screw; 23. Wheel frame; 24. Wire cylinder; 25. Stripping and sharpening tool; 26. Wire to be processed; 27. Ring cut; 28. Embedded mounting block; 29. ​​Elastic metal sheet; 30. Main unit; 31. Bent blade; 32. Drive gear; 33. Driven gear. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention. The embodiments of the invention are further described in detail below with reference to the accompanying drawings: If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0018] like Figure 1-7As shown, the automatic wire stripping machine of the present invention includes a main unit 30 for installing the following electrical and mechanical components; The adjustable clamping part includes at least two wire clamping wheels 19 paired together, used to drive the wire to move while clamping the wire, and the spacing between the wire clamping wheels 19 is adjustable; The sleeve limiting part includes a plurality of wire tubes 24 with different inner diameters and a wheel frame 23. The wire tubes 24 are arranged in a ring outside the wheel frame 23 and can be selectively paired with the wire clamping wheel 19. The wheel frame 23 is driven by a drive motor disposed in the main unit housing 30. The adjustable circumferential cutting section includes a tool holder 15 driven by a motor and linear electric push rods 16 symmetrically arranged on the tool holder 15. A conductive slip ring 13 is provided on the main unit housing 30. The conductive slip ring 13 and the rotating shaft of the tool holder 15 are coaxial. The wire of the conductive slip ring 13 is led out and fixed to the tool holder 15 by a plastic cable tie and communicates with the linear electric push rod 16, thereby enabling power supply to the linear electric push rod 16 while the tool holder 15 can rotate. The movable end of the linear electric push rod 16 is threadedly connected to a threaded blade holder 17. The threaded blade holder 17 moves to a suitable position under the drive of the linear electric push rod 16 to penetrate the insulation layer of the wire to a suitable depth. Then the tool holder 15 rotates to perform circumferential cutting. The control system 11 is configured on the main unit 30 to control the aforementioned components.

[0019] In a preferred embodiment, the adjusting clamping part includes a double helix screw 22 rotatably disposed inside the main unit housing 30, and a motorized box 21 with a motor inside for driving the wire clamping wheel 19 to rotate. The motorized box 21 is slidably disposed inside the main unit housing 30. A screw nut is fixedly disposed on the motorized box 21. The screw nuts on the upper and lower motorized boxes 21 are threadedly connected to the double helix screw 22. When the double helix screw 22 moves, the upper and lower motorized boxes 21 move closer or separate simultaneously to adjust the clamping distance of the wire clamping wheel 19. The motor power supply line inside the motor box 21 uses a spiral wire, which can enable the motor box 21 to move within a specified stroke without interference (existing technology, not shown in the figure).

[0020] In a preferred embodiment, the main unit 30 is equipped with a clamping wheel adjustment drive motor 18, and the output shaft of the clamping wheel adjustment drive motor 18 is connected to a drive gear 32. The drive gear 32 meshes with a driven gear 33 coaxially fixed to the shaft end of the double helical screw 22, so that the clamping distance of the wire clamping wheel 19 is adjusted under the drive of the clamping wheel adjustment drive motor 18.

[0021] In a preferred embodiment, the wire tube 24 is a through-tube structure, with an flared design on the side near the wire clamp wheel 19 to facilitate wire insertion, and the inner diameter of the wire tube 24 is clearance-fitted with the corresponding wire.

[0022] In a preferred embodiment, at least two peeling blades 25 are provided annularly spaced inside the wire tube 24. The peeling blades 25 are obliquely arranged inside the wire tube 24. Each peeling blade 25 includes a triangular elastic metal sheet 29 and an embedded mounting block 28 fixed to the tail end of the elastic metal sheet 29. The embedded mounting block 28 is embedded in the inner wall of the wire tube 24. The working front end of the elastic metal sheet 29 has an arc-shaped surface 20, and a curved blade 31 is fixedly provided on the elastic metal sheet 29 near the inner wall of the wire tube 24 (see...). Figure 5 , 6 7) When the wire 26 to be processed is inserted into the wire cylinder 24, it can pass through the stripper 25. After the ring cutting is completed, a ring cut 27 is formed. Then, the wire 26 to be processed is pulled back while the threaded blade holder 17 is embedded in the insulation layer to increase the lateral width of the ring cut 27 (greater than the length of the contact between the elastic metal sheet 29 and the wire 26 to be processed, and the thickness of the front end of the elastic metal sheet 29 is less than the thickness of the insulation layer of the wire 26 to be processed). In this way, when the wire 26 to be processed is pulled out in the opposite direction by the wire clamping wheel 19, the front end of the elastic metal sheet 29 is stuck into the ring cut 27, and then, with further movement, it pierces under the insulation layer of the wire 26 to be processed. Then, the tubular insulation layer is pierced by the bent blade 31. This can handle the situation where the ring cut position is far from the end of the wire and it is inconvenient to pull out the insulation layer directly. The relevant dimensions of the stripper 25 in each wire cylinder 24 should be customized according to the insulation layer thickness of the corresponding wire to be processed.

[0023] In a preferred embodiment, the main unit 30 is provided with a motor that drives the ring cutting drive active gear 12 to rotate, and the tail end of the tool holder 15 is provided with a ring cutting drive driven gear 14, which meshes with the ring cutting drive active gear 12.

[0024] In a preferred embodiment, the main unit 30 is also equipped with a waste collection box 10 located directly below the knife holder 15 for collecting the stripped insulation layer.

[0025] It should be emphasized that the embodiments described in this invention are illustrative rather than limiting. Therefore, this invention is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this invention also fall within the scope of protection of this invention.

Claims

1. An automatic wire stripping machine, characterized in that: Includes a main unit housing (30) for mounting the following electrical and mechanical components; The adjustable clamping part includes at least two wire clamping wheels (19) paired together, used to drive the wire to move while clamping the wire, and the spacing between the wire clamping wheels (19) is adjustable; The sleeve limiting part includes a plurality of wire tubes (24) with different inner diameters and a wheel frame (23). The wire tubes (24) are arranged in a ring outside the wheel frame (23) and can be selectively paired with the wire clamp wheel (19). The wheel frame (23) is driven by a drive motor configured in the main unit housing (30). The adjustable ring cutting section includes a tool holder (15) driven by a motor and linear electric push rods (16) symmetrically arranged on the tool holder (15). A conductive slip ring (13) is provided on the main unit (30). The conductive slip ring (13) and the rotating shaft of the tool holder (15) are coaxial. After the conductive slip ring (13) wire is led out, it is fixed on the tool holder (15) by a plastic cable tie and communicates with the linear electric push rod (16), thereby realizing the power supply to the linear electric push rod (16) under the premise that the tool holder (15) can rotate. The movable end of the linear electric push rod (16) is threadedly connected to a threaded blade holder (17). The threaded blade holder (17) moves to a suitable position under the drive of the linear electric push rod (16) to penetrate the insulation layer of the wire to a suitable depth. Then the tool holder (15) rotates to perform ring cutting. A control system (11) is configured on the main unit (30) to control the aforementioned components.

2. The automatic wire stripping machine according to claim 1, characterized in that: The adjusting clamping part includes a double helix screw (22) rotatably disposed in the main unit housing (30) and a motorized box (21) with a motor inside for driving the wire clamping wheel (19) to rotate. The motorized box (21) is slidably disposed in the main unit housing (30). A screw nut is fixedly disposed on the motorized box (21). The screw nuts on the upper and lower motorized boxes (21) are threadedly connected to the double helix screw (22). When the double helix screw (22) moves, the upper and lower motorized boxes (21) move closer or further apart at the same time to adjust the clamping distance of the wire clamping wheel (19).

3. An automatic wire stripping machine according to claim 2, characterized in that: The main unit (30) is equipped with a clamping wheel adjustment drive motor (18). The output shaft of the clamping wheel adjustment drive motor (18) is connected to a drive gear (32). The drive gear (32) meshes with a driven gear (33) that is coaxially fixed on the shaft end of the double helical screw (22). Under the drive of the clamping wheel adjustment drive motor (18), the clamping wheel (19) is controlled to adjust the clamping distance.

4. An automatic wire stripping machine according to claim 3, characterized in that: The wire tube (24) is a through tube structure. The side near the wire clamp wheel (19) is flared to facilitate wire insertion. The inner diameter of the wire tube (24) is clearance-fitted with the corresponding wire.

5. An automatic wire stripping machine according to claim 4, characterized in that: At least two peeling blades (25) are provided at an annular interval inside the wire tube (24). The peeling blades (25) are obliquely arranged inside the wire tube (24). Each peeling blade (25) includes a triangular elastic metal sheet (29) and an embedded mounting block (28) fixed to the tail end of the elastic metal sheet (29). The embedded mounting block (28) is embedded in the inner wall of the wire tube (24). The working front end of the elastic metal sheet (29) is provided with an arc-shaped surface (20), and a bent blade (31) is fixed on the elastic metal sheet (29) near the inner wall of the wire tube (24). When When the wire (26) being processed is inserted into the wire tube (24), it can pass through the stripper (25). After the circumferential cutting is completed, a circumferential cut (27) is formed. Then, the wire (26) being processed is pulled back while the threaded blade holder (17) is embedded in the insulation layer to widen the lateral width of the circumferential cut (27). When the wire (26) being processed is pulled out in the opposite direction by the wire clamping wheel (19), the front end of the elastic metal sheet (29) is inserted into the circumferential cut (27) and then, under further movement, it pierces under the insulation layer of the wire (26). Then, the tubular insulation layer is pierced by the bent blade (31).

6. An automatic wire stripping machine according to claim 5, characterized in that: The main unit (30) is equipped with a motor that drives the ring cutting drive active gear (12) to rotate, and the tail end of the tool holder (15) is equipped with a ring cutting drive driven gear (14), which meshes with the ring cutting drive active gear (12).

7. An automatic wire stripping machine according to any one of claims 1-6, characterized in that: The main unit (30) is also equipped with a waste collection box (10) located directly below the knife holder (15) for collecting the stripped insulation layer.

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