Wire insulation skin girdling mechanism

Abstract

The utility model discloses a wire insulation skin girdling mechanism which comprises a first motor, a rotating shaft, a cutter unit, a shaft sleeve and a driving unit. The motor I drives the rotating shaft to rotate; the shaft sleeve sleeves the rotating shaft; the cutter unit comprises a cutter rest seat, a cutter rest and a cutter group; the tool rest is provided with a first end and a second end axially arranged along the rotating shaft; when the driving unit drives the shaft sleeve to move forwards along the rotating shaft, the first ends of all the cutter rests are driven to move away from the axis of the rotating shaft, and meanwhile the second ends draw close to the axis of the rotating shaft so as to drive all the cutter sets to draw close. When the driving unit drives the shaft sleeve to move backwards along the rotating shaft, the spring ring drives the first ends of all the cutter rests to get close to the axis of the rotating shaft and enables the second ends to move away from the axis of the rotating shaft so as to drive all the cutter sets to be dispersed. The ring cutting mechanism is reasonable in structural design, ring cutting operation is carried out through the ring cutting mechanism, production efficiency can be improved, safety is higher, and the ring cutting mechanism has good practicability and generalizability.

Description

Technical Field

[0001] The utility model belongs to the field of automatic wire stripping, and in particular relates to a wire insulation ring cutting mechanism. Background Art

[0002] When connecting a wire to a metal terminal, a small section of insulation must be removed from the end of the wire to expose the inner conductor, which is then crimped to the metal terminal. Wire stripping is often done manually, using a blade to create a circular cut at a certain distance from the end of the wire. The insulation is then pulled off the conductor and peeled off. However, manual stripping is not only inefficient but also poses a safety hazard, easily causing cuts to the hands. Utility Model Content

[0003] In this regard, the utility model provides a wire insulation circumcision mechanism, which can improve production efficiency and avoid the risk of personal injury caused by manual hand-held blade circumcision operations.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a wire insulation ring cutting mechanism, comprising a motor, a rotating shaft, a cutter unit, a shaft sleeve and a driving unit; the motor drives the rotating shaft to rotate, and the motor is fixed to a frame; the shaft sleeve is sleeved on the outside of the rotating shaft, the shaft sleeve rotates synchronously with the rotating shaft and can move forward and backward along the axial direction relative to the rotating shaft, and the shaft sleeve is driven to move forward and backward by the driving unit; the cutter unit comprises a knife holder seat, a knife holder and a cutter group; the knife holder seat is fixed to one end of the rotating shaft, and a plurality of knife holders are arranged on the knife holder seat in an annular manner. The knife holder has a first end and a second end arranged along the axial direction of the rotating shaft, and the middle of the knife holder is connected by a shaft. The first end is connected to the tool holder seat, and the first end is connected to the shaft sleeve and a spring ring is provided on the outer side. The spring ring keeps all the first ends moving toward the axis of the rotating shaft, and the second end is connected to the cutter group. When the driving unit drives the shaft sleeve to move forward along the rotating shaft, the first ends of all the tool holders are driven to move away from the axis of the rotating shaft while the second ends are moved toward the axis of the rotating shaft, so as to drive all the cutter groups to move together. When the driving unit drives the shaft sleeve to move backward along the rotating shaft, the spring ring drives the first ends of all the tool holders to move toward the axis of the rotating shaft while the second ends are moved away from the axis of the rotating shaft, so as to drive all the cutter groups to disperse.

[0006] In some embodiments, the driving unit includes a second motor, a screw, a push plate, a connecting rod and a first roller; the screw is arranged in the same direction as the rotating shaft and is driven to rotate by the second motor, the push plate and the screw nut cooperating with the screw are fixedly connected, the connecting rod is fixed on the push plate, and the first roller is fixed on the end of the connecting rod; an annular groove is provided on the outer periphery of the sleeve, and the first roller is arranged in the annular groove and the circumferential surface of the roller is in contact with the side surface of the annular groove.

[0007] In some embodiments, the number of the connecting rods is two to four, and a roller is provided at the end of each connecting rod.

[0008] In some embodiments, a guide sleeve is provided on the frame, and the connecting rod passes through the guide sleeve.

[0009] In some embodiments, in some embodiments, the rotating shaft is provided with a strip guide groove arranged along its axial direction, and the shaft sleeve is provided with a guide block that forms a sliding fit with the strip guide groove.

[0010] In some embodiments, the sleeve has a tapered portion that is thinner at the front and thicker at the back, and the first end of the tool holder is equipped with a second roller, which contacts the circumference of the tapered portion.

[0011] In some embodiments, a positioning groove is provided on the outer wall of the first end of the tool holder, and the spring ring is embedded in the positioning groove.

[0012] In some embodiments, the tool holder seat has a plurality of bracket parts protruding forward, the outer side of the bracket part is provided with a receiving groove for accommodating the tool holder, and an inwardly protruding clamping block is provided on the inner side of the end of the bracket part, and the inner end of the clamping block is provided with a wire clamping port; the clamping block is a hollow structure; the cutting group is arranged in the clamping block, and the cutting group includes a driving block slidably arranged in the clamping block and a circular blade fixed at the inner end of the driving block, the circular blade is at the wire clamping port, and the outer end of the driving block is linked to the second end of the tool holder.

[0013] In some embodiments, a connection socket is provided at the outer end of the driving block, and the second end of the tool holder is inserted into the connection socket. When the second end of the tool holder moves, it drives the driving block to slide in the clamping block.

[0014] The positive effects of the present invention are as follows: through reasonable arrangement of the structure of the conductor insulation circumcision mechanism, the present invention can realize automatic / semi-automatic circumcision during conductor insulation peeling, reduce manual labor, effectively improve production efficiency, avoid cutting the human body during circumcision operation, ensure safety, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a three-dimensional diagram of the conductor insulation circumcision device of the present invention;

[0017] Figure 2 for Figure 1 The structure diagram of the wire insulation ring cutting device after the frame is removed;

[0018] Figure 3 This is an exploded schematic diagram of the cutter unit in the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the knife holder and the cutter assembly in the present invention when they are in cooperation;

[0020] Figure 5 It is a structural diagram of the shaft sleeve of the utility model.

[0021] 1. The camshaft of the motor is connected to the camshaft by a threaded rod. The camshaft is connected to the camshaft by a threaded rod. The camshaft is connected to the camshaft by a threaded rod. The camshaft is connected to the camshaft by a threaded rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, 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. In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixed", etc. should be understood in a broad sense. For example, "fixed" can be a fixed connection, a detachable connection, or an integral whole; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0024] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0025] The structure of the wire insulation circumcision mechanism provided by the embodiment of the utility model is as follows Figures 1 to 5As shown, it includes a motor 1, a rotating shaft 2, a cutter unit 3, a sleeve 4 and a drive unit 5; the motor 1 drives the rotating shaft 2 to rotate, and the motor 1 is fixed to the frame 6; the sleeve 4 is sleeved on the outside of the rotating shaft 2, and the sleeve 4 rotates synchronously with the rotating shaft 2 and can move forward and backward along the axial direction relative to the rotating shaft 2, and the sleeve 4 is driven to move forward and backward by the drive unit 5; wherein, the cutter unit 3 includes a knife holder seat 31, a knife holder 32 and a cutter group 33; the knife holder seat 31 is fixed to the rotating shaft 2 At one end, a plurality of tool holders 32 are arranged on the tool holder seat 31 in an annular distribution. The number of the tool holders 32 can be set to two to four, and the number of the corresponding cutting knife groups 33 is the same as the number of the tool holders 32. The tool holder 32 has a first end 321 and a second end 322 arranged along the axial direction of the rotating shaft 2. The middle part of the tool holder 32 is connected to the tool holder seat 31 through a connecting shaft 36 to form a lever structure with the connecting shaft 36 as the fulcrum. The first end 321 is connected to the shaft sleeve 4 and is provided with a spring ring on the outside. 34, the spring coil 34 keeps all the first ends 321 in a tendency to approach the axis of the rotating shaft 2, and the spring coil 34 can adopt a ring structure formed by connecting the two ends of a tension spring; the second end 322 is connected to the cutting group 33; when the driving unit 5 drives the sleeve 4 to move forward along the rotating shaft 2, the first ends 321 of all the knife holders 32 are driven to move away from the axis of the rotating shaft 2 while the second ends 322 are moved toward the axis of the rotating shaft 2, so as to drive all the cutting groups 33 to move together; when the driving unit 5 drives the sleeve 4 to move backward along the rotating shaft 2, the spring coil 34 drives the first ends 321 of all the knife holders 32 to approach the axis of the rotating shaft 2 while the second ends 322 are moved away from the axis of the rotating shaft 2, so as to drive all the cutting groups 33 to disperse; the wire insulation skin circumcision mechanism in this embodiment can realize automatic / semi-automatic wire stripping circumcision, reduce manual labor, effectively improve production efficiency, and avoid cutting the human body during the circumcision operation to ensure safety.

[0026] When the above-mentioned wire insulation circumcision mechanism is in use, a manual or mechanical hand takes the wire 7 and extends the end of the wire 7 into the gap between the cutter groups 33, and the drive unit 5 drives the sleeve 4 to move forward and drives the knife holder 32 to move so that the second ends 322 of all the knife holders 32 move toward the center of the rotating shaft 2, thereby driving the cutter group 33 to approach the wire 7, and further driving the rotating shaft 2 to rotate by the motor 1 drives the cutter unit 3 to rotate circumferentially around the wire 7, thereby forming an annular notch on the insulation outside the wire 7, and when the wire 7 is pulled out, the insulation to be stripped off can be pulled off from the wire 7 by the cutter group 33 to realize the circumcision operation, and after the above-mentioned action is completed, the drive unit 5 drives the sleeve 4 to move backward, so that under the elastic force of the spring coil 34, the second ends 322 of all the knife holders 32 move away from the center of the rotating shaft 2 and disperse, waiting for the next circumcision action, and the operation is circulated like this.

[0027] like Figure 2 and Figure 5 As shown, the drive unit 5 includes a motor 2 51, a screw 52, a push plate 53, a connecting rod 54 and a roller 1 55; the screw 52 is arranged in the same direction as the rotating shaft 2 and is driven to rotate by the motor 2 51, the push plate 53 and the screw nut matched with the screw 52 are fixedly connected, the connecting rod 54 is fixed on the push plate 53, and the roller 1 55 is fixed on the end of the connecting rod 54; an annular groove 41 is provided on the outer periphery of the shaft sleeve 4, and the roller 1 55 is arranged in the annular groove 41 and the roller The circumference of roller 55 is in contact with the side of annular groove 41; during the rotation of screw rod 52 driven by motor 2 51, push plate 53 and connecting rod 54 fixedly connected to push plate 53 move forward and backward along the axial direction of screw rod 52, and then roller 1 55 drives sleeve 4 to move forward and backward. Roller 1 55 forms rolling contact with the side of annular groove 41, and friction is small. When sleeve 4 rotates with rotating shaft 2, no circumferential force is generated on connecting rod 54, and the movement is smooth, and the stability of the mechanism is guaranteed; the roller 1 55 can be replaced by a bearing.

[0028] Preferably, in order to enable the connecting rod 54 to effectively drive the sleeve 4 to move forward and backward through the roller 1 55 when moving forward and backward, the number of the connecting rods 54 is two to four, and a roller 1 55 is provided at the end of each connecting rod 54, and preferably two to four connecting rods 54 are evenly distributed along the circumference, so that multiple rollers 55 apply uniform force to the sleeve 4.

[0029] like Figure 1 and Figure 2 As shown, a guide sleeve 61 is provided on the frame 6, and the connecting rod 54 is arranged to pass through the guide sleeve 61; the guide sleeve 61 guides and limits the connecting rod 54 to ensure the position accuracy of the connecting rod 54.

[0030] Specifically, the rotating shaft 2 is provided with a strip guide groove 21 arranged along its axial direction, and the shaft sleeve 4 is provided with a guide block (not shown in the figure) that forms a sliding fit with the strip guide groove 21; the guide block cooperates with the strip guide groove 21 to enable the shaft sleeve 4 to move back and forth axially on the rotating shaft 2, but the shaft sleeve 4 cannot rotate relative to the rotating shaft 2.

[0031] In order to achieve effective linkage between the sleeve 4 and the second end 322 of the tool holder 32, the sleeve 4 has a tapered portion 42 that is thin at the front and thick at the rear, and the first end 321 of the tool holder 32 is equipped with a second roller 323, which contacts the circumferential surface of the tapered portion 42; when the sleeve 4 moves forward, the tapered surface of the tapered portion 42 applies an outward thrust to the second roller 323, thereby pushing the first end 321 of the tool holder 32 to move away from the center of the rotating shaft 2.

[0032] like Figure 2As shown, in order to effectively position the spring ring 34 and prevent the spring ring 34 from slipping on the tool holder 32 , a positioning groove 324 is provided on the outer wall of the first end 321 of the tool holder 32 , and the spring ring 34 is embedded in the positioning groove 324 .

[0033] In some embodiments, as Figures 2 to 4 As shown, the knife holder seat 31 has a plurality of bracket portions 311 protruding forward, and the outer side of the bracket portion 311 is provided with a receiving groove 310 for accommodating the knife holder 32. The receiving groove 310 can adapt to the installation of the knife holder 32 and can limit the knife holder 32. A clamping block 35 protruding inward is provided on the inner side of the end of the bracket portion 311, and a wire clamping port 351 is provided at the inner end of the clamping block 35. The wire clamping port 351 can limit the wire 7 inserted into the cutter unit 3 to prevent the wire 7 from swinging at will; in order to adapt to the installation of the cutter group 33, the clamping block 35 is set to a hollow structure, and the cutter group 33 is arranged in the clamping block 35. 3 includes a driving block 331 slidably disposed within the clamping block 35 and a circular blade 332 fixed to the inner end of the driving block 331. The circular blade 332 is located at the wire clamping opening 351. The outer end of the driving block 331 is linked to the second end 322 of the blade holder 32. The axial direction of the circular blade 332 is perpendicular to the axial direction of the rotating shaft 2, thereby adapting to the circular cutting operation. During use, the second end 322 of the blade holder 32 drives the driving block 331 to move within the clamping block 35 in the direction of approaching and moving away from the rotating shaft 2, thereby driving the circular blade 332 to approach and move away from the wire 7. The peripheral edge of the circular blade 332 forms a cutting edge, which is suitable for circular cutting the insulation of the wire 7.

[0034] In order to simplify the structure and facilitate the linkage connection between the driving block 331 and the tool holder 32, a connecting socket 333 is provided at the outer end of the driving block 331, and the second end 322 of the tool holder 32 is inserted into the connecting socket 333. When the second end 322 of the tool holder 32 moves, it drives the driving block 331 to slide in the clamping block 35. The structure is simple and feasible, and the operation is reliable.

[0035] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A wire insulation circumcision mechanism, characterized in that: It comprises a motor (1), a rotating shaft (2), a cutter unit (3), a shaft sleeve (4) and a driving unit (5); The motor 1 (1) drives the rotating shaft (2) to rotate, and the motor 1 (1) is fixed on the frame (6); The shaft sleeve (4) is sleeved on the outside of the rotating shaft (2), the shaft sleeve (4) and the rotating shaft (2) rotate synchronously and can move forward and backward along the axial direction relative to the rotating shaft (2), and the shaft sleeve (4) is driven to move forward and backward by a driving unit (5); The cutter unit (3) comprises a cutter holder seat (31), a cutter holder (32) and a cutter group (33); the cutter holder seat (31) is fixed to one end of the rotating shaft (2); a plurality of cutter holders (32) are arranged on the cutter holder seat (31) in an annular manner; the cutter holder (32) has a first end (321) and a second end (322) arranged along the axial direction of the rotating shaft (2); the middle part of the cutter holder (32) is connected to the cutter holder seat (31) through a connecting shaft (36); the first end (321) is connected to the shaft sleeve (4) and is provided with a spring ring (34) on the outside; the spring ring (34) makes all the first ends (321) keep a tendency to approach the axis of the rotating shaft (2); the second end (322) is connected to the cutter group (33); When the drive unit (5) drives the shaft sleeve (4) to move forward along the rotating shaft (2), the first ends (321) of all the knife holders (32) are driven to move in a direction away from the axis of the rotating shaft (2) while the second ends (322) are moved toward the axis of the rotating shaft (2), thereby driving all the cutter groups (33) to move together; when the drive unit (5) drives the shaft sleeve (4) to move backward along the rotating shaft (2), the spring ring (34) drives the first ends (321) of all the knife holders (32) to move toward the axis of the rotating shaft (2) while the second ends (322) are moved in a direction away from the axis of the rotating shaft (2), thereby driving all the cutter groups (33) to disperse.

2. The wire insulation circumcision mechanism according to claim 1, characterized in that: The driving unit (5) includes a second motor (51), a screw rod (52), a push plate (53), a connecting rod (54) and a first roller (55); The screw rod (52) is arranged in the same direction as the rotating shaft (2) and is driven to rotate by the second motor (51). The push plate (53) is fixedly connected to the screw rod nut matched with the screw rod (52). The connecting rod (54) is fixed on the push plate (53). The roller one (55) is fixed on the end of the connecting rod (54). An annular groove (41) is provided on the outer periphery of the shaft sleeve (4). The roller one (55) is arranged in the annular groove (41) and the circumference of the roller one (55) contacts the side of the annular groove (41).

3. The wire insulation circumcision mechanism according to claim 2, characterized in that: The number of the connecting rods (54) is two to four, and a roller (55) is provided at the end of each connecting rod (54).

4. The wire insulation circumcision mechanism according to claim 2, characterized in that: A guide sleeve (61) is provided on the frame (6), and the connecting rod (54) is arranged to pass through the guide sleeve (61).

5. The wire insulation circumcision mechanism according to claim 1, characterized in that: The rotating shaft (2) is provided with a strip guide groove (21) arranged along its axial direction, and the shaft sleeve (4) is provided with a guide block that forms a sliding fit with the strip guide groove (21).

6. The wire insulation circumcision mechanism according to claim 1, characterized in that: The shaft sleeve (4) has a tapered portion (42) that is thin at the front and thick at the rear. The first end (321) of the tool holder (32) is equipped with a second roller (323), and the second roller (323) contacts the circumference of the tapered portion (42).

7. The wire insulation circumcision mechanism according to claim 1, characterized in that: A positioning groove (324) is provided on the outer wall of the first end (321) of the tool holder (32), and the spring ring (34) is embedded in the positioning groove (324).

8. The wire insulation circumcision mechanism according to claim 1, characterized in that: The tool holder seat (31) is provided with a plurality of bracket portions (311) protruding forward, and an accommodating groove (310) for accommodating the tool holder (32) is provided on the outer side of the bracket portion (311), and a clamping block (35) protruding inward is provided on the inner side of the end of the bracket portion (311), and a wire clamping port (351) is provided at the inner end of the clamping block (35); The card block (35) is a hollow structure; The cutter group (33) is arranged in the clamping block (35), and the cutter group (33) includes a driving block (331) slidably arranged in the clamping block (35) and a circular blade (332) fixed at the inner end of the driving block (331), the circular blade (332) is located at the clamping port (351), and the outer end of the driving block (331) is linked to the second end (322) of the blade holder (32).

9. The wire insulation circumcision mechanism according to claim 8, characterized in that: The outer end of the driving block (331) is provided with a connecting socket (333), and the second end (322) of the tool holder (32) is inserted into the connecting socket (333). When the second end (322) of the tool holder (32) moves, it drives the driving block (331) to slide in the clamping block (35).

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