CN110676770B - A zero reference adjustment device - Google Patents

Abstract

The invention belongs to the technical field of cable peeling, and particularly relates to a zero reference adjusting device. The invention comprises the following components: the device comprises a zero reference slide plate, a cutter depth adjusting slide block, a pressing plate, a cutter depth adjusting screw seat, an elastic compression damping piece, a cutter depth adjusting bolt and a rotating sleeve. The invention can flexibly realize the self-adaptive adjusting function of the cutter feed amount aiming at the diameter of the cable to be clamped currently. The invention can realize the consistent adjustment of the feed amount and the actual required cutting depth of the cable in one step, thereby achieving the absolute cutting depth adjustment effect and greatly improving the actual peeling efficiency of the cable.

Description

A zero reference adjustment device

Technical Field

The invention belongs to the technical field of cable stripping, and in particular relates to a zero reference adjustment device.

Background Art

With the continuous development and progress of society, the scale of distribution network construction is also expanding, and the workload of distribution network operation and maintenance is increasing. In order to improve the reliability of power supply and reduce the number of households during power outages, the importance of live working is gradually increasing. In the process of line welding construction, the stripping of the insulating wire sheath, that is, the insulation skin, is an important process in the wire stripping and connection. The existing cable stripping methods are divided into two types: manual and automatic stripping. When manually using insulated boom trucks or insulated platforms and other potential entry and exit tools to carry out live working, not only do the operators directly contact the live wires, which increases the unsafe factors, but also the stripping is difficult, the operation steps are many and the efficiency is low. The working environment is also easily affected by the local geographical environment. It has gradually been replaced by automatic stripping. For example, a utility model patent with the patent name of "cable stripper" with the announcement number of "CN 201829799U" has announced a cable stripper, which is electrically driven, and the force output by the reduction motor drives the blade to rotate around the cable through the crank connecting rod mechanism to achieve a circular cutting action, thereby stripping the insulation skin. At the same time, similar descriptions are found in the patent texts with announcement numbers "CN108963888A" and "CN 206432551U", and the applicant has even applied for an invention patent text with application number "CN 109119946A" and the name of "A Cable Electric Stripping Device". By reading through the above existing stripping structures, it can be seen that the stripping devices currently on the market have a common defect, that is, the tool zero point position cannot be adjusted online. Specifically, when the insulation thickness of the cables is equal, but the outer diameters of the cables are different, in order to achieve the same cutting depth, different feed amounts need to be adjusted to achieve the effect of completely stripping the insulation without damaging the wire core. However, since the tool zero point position of the existing stripper can only be adjusted offline by default; when performing cable stripping operations, it is necessary to frequently insert the cable into the stripping fixture and visually observe whether the preset feed amount is sufficient during the process. Once it is found that the cutting amount is too much or too little, it is necessary to remove the stripper from the cable and adjust the cutting amount of the cutter at the stripper to be deeper or shallower, and then repeat the above visual inspection process until the cutting amount of the cutter is consistent with the actual cutting depth of the cable. Each model of cable is stripped once, accompanied by multiple adjustments. Obviously, the adjustment process is extremely cumbersome, which seriously affects the actual cable stripping efficiency.

Summary of the invention

The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a zero reference adjustment device with a reasonable structure and reliable and convenient use, which can flexibly realize the adaptive adjustment function of the cutter feed amount according to the diameter of the current cable to be clamped. The present invention can achieve the consistency adjustment purpose of the cutter feed amount and the actual cutter depth required for the cable in one step, thereby achieving the absolute cutter depth adjustment effect, which can greatly improve the actual cable stripping efficiency.

To achieve the above object, the present invention adopts the following technical solutions:

A zero reference adjustment device, characterized by comprising the following components:

Zero reference slide plate: It is matched with the outer surface of the upper clamping plate and forms a guide rail with a vertical direction between the upper clamping plate; the bottom end of the zero reference slide plate is arranged to locate the reference part of the uppermost busbar of the cable insulation skin;

Tool depth adjustment slider: located on the outer side of the zero reference slider, and cooperates with the zero reference slider to form a guide rail with a vertical guide direction; the bottom end of the tool depth adjustment slider is fixedly connected to the tool;

Pressing plate: The pressing plate surface is set horizontally, and the tail end of the pressing plate and the top end of the upper clamping plate form a fixed fit;

Tool depth adjustment thread seat: The tool depth adjustment thread seat is located below the pressure plate and parallel to the pressure plate surface, and the tail end of the tool depth adjustment thread seat and the zero reference slide plate form a fixed fit;

Elastic compression damping member: used to drive the pressure plate and the knife depth adjustment slider to move apart vertically, the top end of the elastic compression damping member abuts against the bottom end surface of the pressure plate and the bottom end cooperates with the knife depth adjustment slider;

Knife depth adjustment bolt: The knife depth adjustment bolt penetrates the knife depth adjustment thread seat from top to bottom and forms a threaded fit with the knife depth adjustment thread seat. A radial protrusion is provided at the bottom end of the knife depth adjustment bolt, and the radial protrusion and the knife depth adjustment slider form a one-way stop fit to limit the upward action of the knife depth adjustment bolt; when the radial protrusion and the knife depth adjustment thread seat cooperate to clamp and fix the knife depth adjustment slider in opposite directions, the knife tip and the bottom end surface of the reference part of the tool are both against the uppermost busbar of the cable;

Rotating sleeve: The rotating sleeve is coaxially sleeved at the top end of the knife depth adjustment bolt, and a limit slot is axially recessed at the bottom end surface of the rotating sleeve. A limit protrusion is radially protruded outward at the knife depth adjustment bolt or a key structure is axially protruded, so that when the knife depth adjustment bolt is axially inserted into the barrel cavity of the rotating sleeve, an axial sliding fit that can transmit torque is formed between the limit protrusion and the limit slot or between the key structure and the limit slot.

Preferably, a reference positioning plate is horizontally protruded on the outer plate surface of the knife depth adjustment slider, and a vertical reference hole is vertically penetrated on the reference positioning plate; a convex ring is coaxially protruded on the bottom end surface of the knife depth adjustment bolt, and the convex ring constitutes the radial protrusion; a one-way stop is formed between the upper ring surface of the radial protrusion and the lower plate surface of the reference positioning plate.

Preferably, the reference portion is a zero-position reference bearing with its axis horizontally arranged, and the reference portion is matched with the bottom end surface of the zero-position reference slide plate through a bearing seat.

Preferably, a V-shaped holding plate with an opening facing downward is fixedly connected to the bottom end surface of the upper clamping plate, and the groove length direction of the V-shaped holding plate is parallel to the cable axis direction; a yield opening for avoiding the vertical movement path of the reference part is vertically penetrated on the V-shaped holding plate.

Preferably, the elastic compression damping member is a compression spring; a guide column with a vertically arranged axis extends vertically upward from the top end of the knife depth adjustment slider, and the top end of the guide column passes through the pressure plate to form a guiding fit with the guide hole at the pressure plate; the elastic compression damping member is coaxially sleeved on a section of the guide column between the pressure plate and the knife depth adjustment slider.

Preferably, there are two guide pillars and they are arranged axially symmetrically along the axis of the knife depth adjustment bolt.

Preferably, a through hole is vertically penetrated at the pressure plate for the rotation sleeve to pass through. After the top end of the rotation sleeve passes through the through hole from bottom to top, it is screw-fastened to the recessed hole at the bottom end surface of the knife depth adjustment knob by a radial locking screw.

Preferably, a through hole for the rotating sleeve to pass through is vertically penetrated at the pressure plate. After the top end of the rotating sleeve passes through the through hole from bottom to top, it is screw-fastened to the power output shaft of the knife depth adjustment motor by a radial locking screw.

Preferably, a zero-position reference guide rail with a vertical guiding direction is fixedly connected to the outer plate surface of the upper clamping plate, and a guide groove is recessed on the inner plate surface of the zero-position reference slide plate to form a fixed fit with the zero-position reference guide block on the zero-position reference guide rail; a tool depth adjustment guide rail with a vertical guiding direction is fixedly connected to the outer plate surface of the zero-position reference slide plate, and a guide groove is recessed on the inner plate surface of the tool depth adjustment slide plate to form a fixed fit with the tool depth adjustment guide block on the tool depth adjustment guide rail.

Preferably, the device includes a limit pin, and a pin hole is radially penetrated through the upper rod of the knife depth adjustment bolt, the limit pin is inserted into the pin hole, and both ends of the limit pin protrude from the rod wall surface of the knife depth adjustment bolt to form the limit protrusion; the limit slot holes are in two groups and are axially symmetrically arranged along the axis of the rotating sleeve.

The beneficial effects of the present invention are:

1) Based on the structure of the existing stripper, the present invention provides a zero-position reference adjustment structure, so that the adaptive adjustment function of the cutting tool feed amount can be flexibly realized according to the diameter of the current cable to be clamped. Specifically, when the knife depth adjustment bolt is tightened until the annular protrusion at the knife depth adjustment bolt cooperates with the pressure plate to clamp the knife depth adjustment threaded seat toward each other, not only the tip of the knife and the reference part are on the same horizontal line; at the same time, since the knife depth adjustment threaded seat is fixedly connected to the zero-position reference slide plate, the zero-position reference slide plate, the reference part, the knife depth adjustment threaded seat and even the knife depth adjustment slider are all fixedly connected to each other to form an integrated structure, and can all produce elastic floating action relative to the upper clamping plate and the pressure plate under the action of the elastic compression damping member. Once the upper clamping plate cooperates with the lower clamping plate to wrap the cable, the reference part will be pushed and floated under the action of the elastic compression damping member. At the same time, since the knife and the reference part have been integrated, the knife will also produce a floating action synchronously, and the zero-position reference adjustment operation is completed at this time. After that, the rotating sleeve is rotated, and the knife depth adjustment bolt produces a spiral downward motion. Under the elastic restoring force of the elastic compression damping member, the tool will slowly cut into the cable insulation skin along with the overall rotation of the stripping fixture. For every centimeter the knife depth adjustment bolt moves downward, the tool will "absolutely" sink one centimeter relative to the reference part or the uppermost busbar of the cable insulation skin, and finally achieve the purpose of adjusting the consistency between the feed amount and the actual cutting depth required for the cable, thereby achieving the absolute cutting depth adjustment effect, which can greatly improve the actual stripping efficiency of the cable. Of course, in actual operation, the contact position of the tool and the reference part does not necessarily have to be the uppermost busbar of the cable insulation skin. It is only necessary that the movement paths of the two are arranged along the radial direction of the cable, and the contact position relative to the cable insulation skin is the same busbar of the cable insulation skin. It will not be repeated here.

2) As for the reference part, in actual operation, a straight rod or the like can be used to achieve the contact function relative to the cable insulation, or a rectangular block with a ball at the front end can be used to achieve the contact matching effect. The present invention preferably uses a zero-position reference bearing to achieve its reference calibration function, because the zero-position reference bearing can not only achieve the contact effect relative to the cable insulation, but also when the stripping fixture rotates relative to the cable to continuously strip the insulation, the zero-position reference bearing can also produce a bearing rolling action relative to the cable surface to reduce the rotation resistance of the stripping fixture, effectively improving the convenience and efficiency of the entire stripping operation.

3) Furthermore, the upper clamping plate and the lower clamping plate preferably cooperate with each other in the V-shaped structure of the V-shaped clamping plate to realize the clamping function relative to the cable. When the V-shaped clamping plate is arranged at the bottom end surface of the upper clamping plate, if the coverage area of the V-shaped clamping plate is expanded, it will interfere with the action path of the reference part; and if the coverage area of the V-shaped clamping plate is reduced, the clamping effect relative to the cable may be compromised. The present invention directly opens a clearance port on the V-shaped clamping plate to allow the reference part to pass normally, thereby ensuring the coverage area of the V-shaped clamping plate and ensuring the normal zero reference correction function of the reference part, achieving multiple goals at one stroke.

4) For the elastic compression damping member, structures such as elastic damping gas plugs or even hydraulic damping rods can be used. The present invention preferably adopts a traditional guide post spring matching structure, so that two sets of compression springs are matched with two guide posts to ensure the elastic matching function of the knife depth adjustment slider relative to the pressure plate while ensuring the precise vertical guidance of the knife depth adjustment slider.

5) For the rotating sleeve, a knife depth adjustment knob is also provided on the top thereof, so as to realize the rotation adjustment function of the rotating sleeve by human power. The knife depth adjustment knob and the rotating sleeve are preferably connected by a radial locking screw of a set screw type to realize the matching relationship between the two. Of course, in actual operation, considering the purpose of automation, a knife depth adjustment motor can also be used to perform the rotation adjustment operation of the rotating sleeve to improve the convenience of use of the present invention.

6) For the matching structure between the zero reference slide and the upper clamping plate, and the knife depth adjustment slide and the zero reference slide, the zero reference guide rail and the knife depth adjustment guide rail can ensure the reliable vertical sliding matching function of each, so as to ensure the purpose of online sliding adjustment. Since the existing guide rails available on the market have a guide block structure, the guide block can be naturally snapped into the guide slot on the inner side of the corresponding knife depth adjustment slide and the zero reference slide to ensure its fixed stability.

7) As for the limiting protrusion set on the knife depth adjustment bolt, it can be directly formed in one piece with the knife depth adjustment bolt, and it can also be considered as described in the present invention that the limiting protrusion is naturally formed by inserting and penetrating the limiting pin relative to the pin hole. The matching mode of the limiting pin and the pin hole simplifies the manufacturing process of the limiting protrusion, and the manufacturing process is more concise; at the same time, once physical damage such as wear occurs after repeated use, it can also be conveniently replaced online by quickly pulling out the limiting pin, so that the use cost-effectiveness is higher.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of an automatic peeling device;

Figures 2 and 4 are schematic diagrams of the three-dimensional structure of the peeling clamp;

FIG3 is an exploded view of the three-dimensional structure of the structure shown in FIG2 ;

FIG5 is an exploded view of the matching state of the upper fixture seat relative to the lower fixture seat;

FIG6 is a schematic diagram of the three-dimensional structure of the present invention after the knife depth adjustment motor is removed;

FIG7 is an exploded view of the three-dimensional structure of the structure shown in FIG6 ;

FIG8 is a cross-sectional view of the present invention;

FIG9 is a schematic diagram of the operation of the zero reference adjustment component in an initial state;

FIG10 is a schematic diagram of the operation of the zero reference adjustment assembly when it is in a working state;

11-12 are schematic diagrams of the three-dimensional structure of the tool;

13-14 are flow charts of the adjustment action of the adjustment handle relative to the knife seat;

FIG15 is an exploded view of the three-dimensional structure of the tool;

FIG16 is a schematic diagram of the three-dimensional structure of the adjustment handle;

17-18 are action flow charts of the axial displacement helical angle adjustment assembly;

FIG. 19 is a schematic diagram of the three-dimensional structure of the guide knife.

The actual correspondence between the reference numerals and component names of the present invention is as follows:

40-Driver Unit

50-stripping fixture 50a-rear thread slider 51-frame 52-upper fixture seat

52a-Zero reference slide 52b-Blade depth adjustment slide 52c-Pressure plate

52d-knife depth adjustment threaded seat 52e-elastic compression damping element 52f-knife depth adjustment bolt

52g- Rotating sleeve 52h- Knife depth adjustment motor 52i- Wire core detection sensor

52j-upper clamp 52k-reference part 52l-radial protrusion 52m-limiting slot

52n-limiting protrusion 52o-reference positioning plate 52p-bearing seat 52q-V-type holding plate

52r-give-way opening 52s-guide post 52t-passage hole

52u-Zero reference guide 52v-Blade depth adjustment guide 52w-Skin guide device

53-lower fixture seat 53a-equipotential spring 53b-blind hole 53c-guide knife

53d-toothed guide edge 53e-first adjustment screw 53f-second adjustment screw

53g-first pass through countersunk hole 53h-second pass through countersunk hole

54-bidirectional screw rod 55-opening and closing drive motor

56-cutter 56a-cutter holder 56b-cutter head 56c-adjusting handle 56d-arc convex edge

56e-arc-shaped groove 56f-fixing screw 56g-arc-shaped fixing hole 56h-matching plate

56i-Adjusting screw 56j-Blade

57-Plumb guide rail 57a-Plumb slide

60-Adapter

DETAILED DESCRIPTION

For ease of understanding, the specific application structure and working mode of the present invention are further described below in conjunction with Figures 1-19:

The present invention can be applied to a stripper for stripping cables, such as a manually adjustable stripper or even an automatic stripper. The automatic stripper is taken as a specific embodiment and described in detail as follows:

The automatic stripper as shown in FIG1 is mainly composed of a stripping fixture 50 and a driving unit 40. When the stripping fixture 50 is assembled, it can be fixed to the power shaft of the driving unit 40 through an adapter 60 as shown in FIG2. The driving unit 40 is then fixed to an external device such as an axial follow-up mounting frame, a robot arm, or even a handheld insulating rod to achieve the purpose of high-altitude cable stripping. For the stripping fixture 50, it includes the zero reference adjustment component of the present invention, and also includes the fixture opening adjustment component, the axial displacement helical angle adjustment component, the skin guide device, and the equipotential springs and other auxiliary structures.

The following are explained in turn:

1. Zero reference adjustment components:

The zero reference adjustment assembly, i.e., the specific structure of the present invention, is shown in Figs. 1-10. When in use, it can be directly assembled with the tool 56 and the rear threaded slider 50a as shown in Fig. 7 to form the upper clamp seat 52. As shown in Fig. 8, the zero reference adjustment assembly includes, from left to right, an upper clamp plate 52j, a zero reference guide rail 52u, a zero reference slide plate 52a, a knife depth adjustment guide rail 52v, a knife depth adjustment slider 52b, and a reference portion 52k. The right side of the knife depth adjustment slider 52b is horizontally protruded outwardly with a reference positioning plate 52o, and a plumb reference hole is set at the reference positioning plate 52o. In the layout structure shown in Fig. 8, the hole axis at the plumb reference hole is matched with a knife depth adjustment bolt 52f; and then, along the axial direction of the knife depth adjustment bolt 52f, a knife depth adjustment threaded seat 52d, a pressure plate 52c, an elastic compression damping member 52e, a rotating sleeve 52g, and a knife depth adjustment knob 52h are sequentially arranged upward.

When assembling:

As shown in Fig. 6-8, the upper clamping plate 52j is used as the framework of the upper clamping seat 52, and the bottom end thereof is provided with a V-shaped holding plate 52q, and the top end is fixedly connected with the pressing plate 52c by bolts to form an integrated right-angle bent plate structure. The left side of the upper clamping plate 52j, that is, the outer plate surface, is fixedly connected with the zero-position reference guide rail 52u, so that the zero-position reference slide plate 52a located at the outer plate surface of the upper clamping plate 52j can form a guide rail matching relationship with the upper clamping plate 52j through the zero-position reference guide rail 52u, with the guide direction being the vertical direction. Similarly, the outer plate surface of the zero-position reference slide plate 52a is provided with a knife depth adjustment guide rail 52v; and the knife depth adjustment slide block 52b located at the outer plate surface of the zero-position reference slide plate 52a, forms a guide rail matching relationship with the zero-position reference slide plate 52a through the knife depth adjustment guide rail 52v, with the guide direction being the vertical direction. The top end surface of the zero-position reference slide 52a and the tool depth adjustment threaded seat 52d also form an integrated right-angle bent plate structure, and the bottom end surface of the zero-position reference slide 52a is connected to the reference part 52k, i.e., the zero-position reference bearing, through the bearing seat 52p.

The top of the knife depth adjustment slider 52b is provided with a guide column 52s with an axis arranged vertically extending vertically upward as shown in Figures 6-7. The top of the guide column 52s penetrates the pressure plate 52c to form a guide match with the guide hole at the pressure plate 52c. The elastic compression damping member 52e can be coaxially assembled on the guide column 52s using a compression spring or even a damping gas column, so as to achieve the elastic force storage action of the knife depth adjustment slider 52b relative to the pressure plate 52c and the elastic force release action under the elastic restoring force. The bottom end of the knife depth adjustment slider 52b is bolted to the knife seat 56a of the tool 56 through a horizontal screw as shown in Figures 3 and 5. In actual operation, the structure of the knife seat 56a shown in Figures 11-14 can be referred to, and a corresponding waist-shaped assembly hole is set on the knife seat 56a, so that when the knife depth adjustment slider 52b is matched, a certain degree of horizontal tool adjustment can be achieved.

As shown in Fig. 7-8, a reference positioning plate 52o is horizontally protruded on the outer plate surface of the knife depth adjustment slider 52b, and a vertical reference hole is set on the reference positioning plate 52o. A convex annular radial protrusion 521 is coaxially protruded on the bottom end surface of the knife depth adjustment bolt 52f; the upper annular surface of the radial protrusion 521 and the lower plate surface of the reference positioning plate 52o form a one-way stop fit. At the same time, after the knife depth adjustment bolt 52f forms a threaded fit with the knife depth adjustment threaded seat 52d, the top end surface of the knife depth adjustment bolt 52f also coaxially penetrates into the barrel cavity of the rotating sleeve 52g, and realizes a torque transmission fit structure that is axially slidable and circumferentially limited through the fit of the limiting protrusion 52n and the limiting slot hole 52m as shown in Fig. 7. The top end of the rotating sleeve 52g is fixedly connected to the power output shaft of the knife depth adjustment knob 52h located on the upper surface of the pressure plate 52c through a radial fixing structure that can transmit torque, such as a set screw structure or even a spline fitting method, to ensure the torque transmission function of the rotating sleeve 52g and even the knife depth adjustment bolt 52f.

When the knife depth adjustment knob 52h rotates, the knife depth adjustment bolt 52f is given an axial downward force through the rotating sleeve 52g, so that the tip of the knife 56 located at the knife depth adjustment slider 52b moves downward, thereby realizing the function of cutting the cable insulation skin in depth. In the specific embodiment shown in Figure 2, the wire core detection sensor 52i is arranged on the incoming side of the upper clamp seat 52, and is arranged adjacent to the knife 56. The detection end of the wire core detection sensor 52i points to the cable surface along the cable radial direction to achieve the purpose of online monitoring of the exposure degree of the wire core after stripping. When the knife depth adjustment knob 52h continuously drives the rotating sleeve 52g to rotate and causes the knife depth adjustment bolt to continuously move downward, the knife 56 will continuously deepen the absolute cutting depth relative to the cable insulation skin. Once the tip of the cutter 56 is inserted into the position where the cable insulation is completely stripped off and the wire core begins to be exposed, the wire core detection sensor 52i will immediately collect the image signal or other corresponding signal of the wire core and transmit it to the control end. At this time, the knife depth adjustment knob 52h can be stopped to maintain the current cutting depth and continuously achieve the purpose of perfect cutting of the cable insulation.

Of course, in actual operation, the wire core detection sensor 52i can be a conventional photoelectric sensor such as a camera sensor, or it can adopt existing conventional detection means such as discharge detection or even electromagnetic field induction. Such means and even their signal transmission and receiving and sending modes are conventional operating methods in the field of electronic sensing, and will not be repeated here.

2. Feed angle adjustment component:

As for the knife angle adjustment assembly, its structure is shown in FIGS. 1-5 and 11-16, and includes a knife head 56b for cutting the insulation skin, a knife seat 56a as a mounting base for the knife head 56b, and an adjustment handle 56c for connecting the knife head 56b and the knife seat 56a. The knife seat 56a is bolted to the bottom end surface of the knife depth adjustment slider 52b of the aforementioned zero reference adjustment assembly through the horizontal bolt hole at the horizontal plate section, so as to rise and fall together with the knife depth adjustment slider 52b, and the inclined plate section of the knife seat 56a is used to assemble with the adjustment handle 56c.

As for the adjustment handle 56c, its outer shape is a trapezoidal plate as shown in Figures 15-16, and the inner side plate surface of the adjustment handle 56c constitutes a tight surface for matching the vertical matching surface of the knife seat 56a. The trapezoidal top edge of the adjustment handle 56c extends to the direction of the knife seat 56a with a matching plate 56h, and the plate surface of the matching plate 56h is perpendicular to the plate surface of the adjustment handle 56c. It can be seen from the structure shown in Figures 11-16 that the tight surface of the adjustment handle 56c is convexly provided with an arc-shaped convex ridge 56d, and the vertical matching surface of the knife seat 56a is correspondingly provided with an arc-shaped groove 56e, and the arc extension path of the arc-shaped convex ridge 56d and the arc-shaped groove 56e is located on the same circle with the tip of the knife head 56b as the center and the distance from the tip of the knife head 56b to the corresponding groove or convex ridge as the radius. At the same time, an arc-shaped fixing hole 56g is horizontally provided through the adjusting handle 56c, and the arc extension path of the arc-shaped fixing hole 56g forms a concentric circle arrangement with the arc extension path of the arc-shaped convex ridge 56d. The fixing screw 56f is horizontally inserted into the arc-shaped fixing hole 56g, and the top end of the fixing screw 56f forms a threaded fixed fit with the vertical matching surface of the knife seat 56a, so that the adjusting handle 56c is horizontally pressed and fixed on the knife seat 56a by the nut end of the fixing screw 56f.

The appearance of the cutter head 56b is also particular: as shown in Figures 11-12 and 15, the appearance of the cutter head 56b actually presents a cylindrical structure that is tilted downward. The rear section of the cutter head 56b constitutes the handle end of the cutter head 56b, and a countersunk hole is coaxially recessed at the top of the front section of the cutter head 56b, and an inner chamfer is arranged at the mouth of the countersunk hole. The cutter head 56b is cut with a section plane that coincides with the axis of the cutter head 56b, so that the front section of the cutter head 56b presents a semi-cylindrical structure, and the inner chamfer at the countersunk hole after cutting constitutes a semi-circular blade 56j. The above structure of the cutter head 56b, on the one hand, can always ensure that the vertical height of the arc-shaped blade of the cutter head 56b is greater than the total thickness of the insulation skin during cutting feed; on the other hand, it also helps to achieve the best lateral chip guiding and chip removal effect, and with the aforementioned adjustment of the cutting angle of the blade 56j, the optimal insulation skin cutting purpose can be achieved. In addition, the cylindrical or semi-cylindrical cutter head 56b will generate a huge cutting force when cutting the insulating skin, and the cutter head 56b itself can also have sufficient rigidity and strength to withstand the reverse force, so as to ensure the actual service life of the overall component.

3. Fixture opening adjustment components:

The structure of the clamp opening adjustment assembly is shown in Figures 2-4, including a vertical guide rail 57 on the frame 51. The rear threaded slider 50a is arranged on the back of the upper clamp seat 52 and the lower clamp seat 53 to form a threaded matching relationship with the screw rod section of the bidirectional screw rod 54, so that the upper clamp seat 52 and the lower clamp seat 53 can produce a movement of moving toward and away from each other parallel to the axis of the bidirectional screw rod 54 under the drive of the opening and closing drive motor 55 or other power equipment. In order to ensure the movement stability of the upper clamp seat 52 and the lower clamp seat 53, a vertical guide rail 57 is also provided on the frame 51, and the rear threaded slider 50a is matched with the corresponding guide rail at the vertical guide rail 57 through the vertical slider 57a.

During actual use, the opening and closing of the stripping clamp 50, that is, the opening and closing action of the upper clamp seat 52 relative to the lower clamp, can be controlled by detecting the current. For example: when the opening and closing drive motor 55 rotates, it can drive the upper clamp seat 52 and the lower clamp seat 53 to move synchronously in opposite directions. When the upper clamp seat 52 and the lower clamp seat 53 begin to feel the obstruction of the cable insulation, the current of the opening and closing drive motor 55 will change. When the current change of the opening and closing drive motor 55 reaches the set current value, the opening and closing drive motor 55 can stop moving, and the stripping clamp 50 can embrace the cable. Through the above-mentioned sensing structure, the automatic stripper can clamp cables of different diameters in the range of 70mm-240mm and achieve a stable stripping function.

4. Axial displacement helical angle adjustment component:

The purpose of setting the axial displacement helical angle adjustment component is to enable the stripper to adjust the axial displacement helical angle when stripping the cable, thereby ensuring the control function of the axial movement speed of the cable when stripping.

Specifically, as shown in FIGS. 17-19 , the axial displacement helical angle adjustment assembly includes a blind hole 53b recessed in the groove cavity of the V-shaped holding plate 52q of the lower fixture seat 53, so that the swing angle adjustment function of the blade edge of the toothed guide ridge 53d at the guide knife 53c is realized through the effective cooperation between the square plate-shaped fixed guide knife 53c and the blind hole 53b cavity as shown in FIG. 19 . On the one hand, the blind hole 53b is directly recessed in the groove cavity of the V-shaped holding plate 52q, that is, the V-shaped holding surface, which can effectively accommodate the guide knife 53c of a certain thickness, so as to ensure that the guide knife 53c itself will not affect the axial movement of the cable. On the other hand, although the guide knife 53c is recessed in the blind hole 53b, the toothed guide ridge 53d can protrude from the groove cavity surface of the V-shaped holding plate, so that the blade edge of the toothed guide ridge 53d can be used to produce a cutting function relative to the cable insulation skin. In actual operation, as shown in Fig. 17-18, the axial displacement helical angle adjustment assembly can use the first adjustment screw 53e to cooperate with the first penetration countersunk hole 53g to form a positioning axis, and use the second adjustment screw 53f to cooperate with the arc-shaped waist-shaped second penetration countersunk hole 53h to ensure the fixing function of the guide knife 53c after adjustment. The corresponding adjustment screws can be hidden in each penetration countersunk hole to avoid the protruding adjustment screw part from interfering with the cable.

5. Skin guide device:

As shown in FIG1-3, the skin guide device 52w is in the shape of a trumpet with a large mouth facing upwards, and a connecting vertical plate is arranged at the small-diameter end of the skin guide device 52w so as to form a tight fit with the cutter 56 to achieve stable assembly of the skin guide device 52w. The function of the skin guide device 52w is to guide the spiral-shaped insulation skin cut by the cutter 56. When the cutter 56 cuts the cable insulation skin, the spiral-shaped insulation skin cut out will be directly guided out of the actual working range of the automatic stripper by the skin guide device 52w as shown in FIG1-3, and then naturally fall under the action of gravity, so as to avoid the hard insulation skin from rigidly interfering with the normal operation of the automatic stripper as the cutting process proceeds.

6. Equipotential shrapnel:

The purpose of setting the equipotential spring 53a is that when the cutter 56 is peeling, the cable insulation is gradually removed and the wire core is exposed. At this time, the equipotential spring 53a will move to contact the wire core due to its own elastic restoring force, and connect the high voltage current at the wire core to the circuit board of the robot to form an equipotential operation effect. The specific appearance of the equipotential spring 53a can be referred to as a "C"-shaped spring with the back facing upward as shown in Figures 2-3 and 5. When in use, one end is fixed to the concave groove at the notch of the V-shaped holding plate 52q as shown in Figure 5, and the other end can be pressed to produce an elastic downward pressing action along the groove direction of the concave groove, and return to the original state when the pressure is released. The back of the equipotential spring 53a should protrude from the groove surface of the V-shaped holding plate 52q for matching the cable, and can contact the cable core; of course, the specific protruding height of the back can be adjusted as appropriate according to the needs of the site, and will not be repeated here.

To facilitate further understanding of the present invention, the specific working process of the automatic peeling device used in the present invention is given as follows:

Cable bonding process:

When the cable needs to be stripped, the cable to be stripped is first inserted radially into the two groups of V-shaped holding plates 52q of the stripping clamp 50 along the opening of the stripping clamp 50. After that, the opening and closing drive motor 55 starts to work and drives the bidirectional screw rod 54 to rotate, so that the upper clamp seat 52 and the lower clamp seat 53 of the stripping clamp 50 move towards each other under the action of the thread of the bidirectional screw rod 54, until the V-shaped holding plates 52q at the upper clamp seat 52 and the V-shaped holding plates 52q at the lower clamp seat 53 hold the cable towards each other. When the upper clamp seat 52 and the lower clamp seat 53 begin to feel the obstruction of the cable, the current of the opening and closing drive motor 55 changes; when the current change of the opening and closing drive motor 55 reaches the set current value, the opening and closing drive motor 55 stops moving, and the cable is stably held by the stripping clamp 50.

Cable stripping process:

Before the cable clasping process is performed, the operator can determine the thickness of the cable insulation and the cutting angle of the cable according to the current cable model, so as to pre-adaptively adjust the cutting angle of the cutter 56. Similarly, the angle of the toothed guide edge 53d at the guide knife 53c also needs to be adjusted accordingly to achieve the purpose of controlling the axial travel speed of the cable.

Before the cable is stably held by the stripping fixture 50, the zero reference calibration of the cable stripping process can be performed synchronously. When specifically applied to an automatic stripper, the operation steps are as follows:

1) Zero reference calibration: Before the cable is reliably held by the V-shaped holding plate 52q, the knife depth adjustment knob 52h starts to move, thereby driving the rotating sleeve 52g to move, so that the knife depth adjustment bolt 52f produces a follow-up upward movement. As the knife depth adjustment bolt 52f rotates upward, first, the top surface of the radial protrusion 52l at the depth adjustment bolt will gradually press against the lower plate surface of the reference positioning plate 52o, and then drive the reference positioning plate 52o and even the zero reference slide plate 52a to produce a synchronous upward movement, until the zero reference slide plate 52a is tightly clamped between the radial protrusion 52l and the knife depth adjustment threaded seat 52d. At this time, the position state of the stripping fixture 50 is shown in Figure 9, and the tip of the tool 56 is also on the same horizontal plane as the lower end point of the outer circle of the zero reference bearing.

2) Finding the zero position: During the process of the V-shaped clamping plate 52q clamping the cable, the zero position reference bearing, i.e., the reference part 52k, gradually begins to contact the cable insulation, and the zero position reference bearing moves upward under the pressure of the cable insulation. Due to the presence of the compression spring, i.e., the elastic compression damping member 52e, and the zero position reference slide 52a and the knife depth adjustment slide 52b are compressed into an integrated structure by the radial protrusion 52l of the knife depth adjustment bolt 52f, the tool 56 at the knife depth adjustment slide 52b will move upward along with the zero position reference bearing at the zero position reference slide 52a, compressing the compression spring, thereby completing the zero position finding step. During the above-mentioned zero position finding process, the tip of the tool 56 will always be in a state of just contact with the cable insulation, as shown in Figure 9;

3) Absolute feed adjustment: After the zeroing step is completed, the knife depth adjustment knob 52h rotates, driving the knife depth adjustment bolt 52f to move downward, thereby causing the radial protrusion 52l to move downward to loosen the clamping of the reference positioning plate 52o. At this time, under the elastic restoring force of the compression spring, the knife depth adjustment slider 52b integrated with the reference positioning plate 52o moves downward, while the zero reference slide plate 52a equipped with the zero reference bearing remains in place due to the matching relationship with the guide rail of the knife depth adjustment slider 52b and the supporting effect of the cable insulation. Since the limiting slot 52m at the rotating sleeve 52g and the limiting protrusion 52n at the knife depth adjustment screw form an axial sliding fit that can transmit torque, and at the same time there is the elastic force storage effect of the compression spring, the knife depth adjustment knob 52h can be rotated into place once, and then relying on the force release performance of the compression spring, the tool 56 located at the knife depth adjustment slider slowly cuts into the cable insulation skin until the specified cutting depth is reached, as shown in Figure 10.

In the above steps, once the tip of the cutter 56 just reaches the point where the cable insulation is completely stripped and the wire core begins to be exposed, the wire core detection sensor 52i will immediately collect the image signal or other corresponding signal of the wire core and transmit it to the control end, and the knife depth adjustment knob 52h can then stop to maintain the current cutting depth. After that, the automatic stripper is operated to move along the cable axis to achieve the purpose of high-efficiency stripping of a certain section of cable insulation.

Claims (8)

1. The zero reference adjusting device is characterized by comprising the following components:

Zero reference slide (52 a): is matched with the outer side plate surface of the upper clamping plate (52 j) and is matched with a guide rail with a vertical guiding direction formed between the upper clamping plates (52 j); the bottom end of the zero reference slide plate (52 a) is provided with a reference part (52 k) for positioning the position of the bus at the uppermost side of the cable insulation cover;

Knife depth adjusting slider (52 b): the guide rail is positioned at the outer side plate surface of the zero reference slide plate (52 a) and is matched with a guide rail with the vertical guide direction formed between the zero reference slide plates (52 a); the bottom end of the cutter depth adjusting slide block (52 b) is fixedly connected with a cutter (56);

Platen (52 c): the plate surface of the pressing plate (52 c) is horizontally arranged, and the tail end of the pressing plate (52 c) is fixedly matched with the top end of the upper clamping plate (52 j);

Tool depth adjusting screw seat (52 d): the cutter depth adjusting screw seat (52 d) is positioned below the pressing plate (52 c) and is parallel to the plate surface of the pressing plate (52 c), and the tail end of the cutter depth adjusting screw seat (52 d) is fixedly matched with the zero reference slide plate (52 a);

elastic compression damper (52 e): the device is used for driving the pressing plate (52 c) and the cutter depth adjusting slide block (52 b) to generate vertical separation action, the top end of the elastic compression damping piece (52 e) is propped against the bottom end surface of the pressing plate (52 c), and the bottom end of the elastic compression damping piece is matched with the cutter depth adjusting slide block (52 b);

knife depth adjusting bolt (52 f): the cutter depth adjusting bolt (52 f) penetrates through the cutter depth adjusting threaded seat (52 d) from top to bottom and is in threaded fit with the cutter depth adjusting threaded seat (52 d), a radial bulge (52 l) is arranged at the bottom end of the cutter depth adjusting bolt (52 f), and a limit cutter depth adjusting bolt (52 f) is formed between the radial bulge (52 l) and the cutter depth adjusting slide block (52 b) to generate unidirectional spigot fit of ascending action; when the radial protrusion (52 l) is matched with the cutter depth adjusting screw seat (52 d) together to clamp and fix the depth adjusting sliding block (52 b) in opposite directions, the cutter point of the cutter and the bottom end surface of the reference part (52 k) are abutted against the bus at the uppermost side of the cable;

rotating sleeve (52 g): the rotary sleeve (52 g) is coaxially sleeved at the top end of the cutter depth adjusting bolt (52 f), a limiting slot hole (52 m) is axially concavely arranged at the bottom end surface of the rotary sleeve (52 g), a limiting protrusion (52 n) is radially outwards convexly arranged at the cutter depth adjusting bolt (52 f) or a key structure is axially convexly arranged at the cutter depth adjusting bolt, so that when the cutter depth adjusting bolt (52 f) is axially inserted in a barrel cavity of the rotary sleeve (52 g), axial sliding fit capable of transmitting torque is formed between the limiting protrusion (52 n) and the limiting slot hole (52 m) or between the key structure and the limiting slot hole (52 m);

the elastic compression damping piece (52 e) is a compression spring; a guide post (52 s) with a vertically arranged axis is vertically upwards extended at the top end of the cutter depth adjusting slide block (52 b), and the top end of the guide post (52 s) penetrates through the pressing plate (52 c) so as to form guide fit with a guide hole at the pressing plate (52 c); the elastic compression damping piece (52 e) is coaxially sleeved on a section of guide post (52 s) between the pressing plate (52 c) and the cutter depth adjusting slide block (52 b);

The vertical penetrating of clamp plate (52 c) department is provided with the passing hole (52 t) that can supply rotatory sleeve (52 g) to penetrate, and behind passing hole (52 t) are run through from bottom to top to the top of rotatory sleeve (52 g), and rethread radial locking screw and holding screw formula rigid coupling are in the bottom face department shrinkage pool department of sword dark adjusting knob.

2. A zero reference adjustment device as defined in claim 1, wherein: a reference positioning plate (52 o) is horizontally and convexly arranged at the outer side plate surface of the cutter depth adjusting slide block (52 b), and a vertical reference hole is vertically and penetratingly arranged on the reference positioning plate (52 o); a convex ring is coaxially arranged at the bottom end surface of the cutter depth adjusting bolt (52 f) in a protruding way, and the convex ring forms the radial protrusion (52 l); the upper ring surface of the radial bulge (52 l) is matched with the lower plate surface of the reference positioning plate (52 o) to form a one-way spigot.

3. A zero reference adjustment device as defined in claim 2, wherein: the reference part (52 k) is a zero reference bearing with an axis arranged horizontally, and the reference part (52 k) is matched with the bottom end surface of the zero reference slide plate (52 a) through a bearing seat (52 p).

4. A zero reference adjustment device as defined in claim 3, wherein: a V-shaped holding plate (52 q) with a downward opening is fixedly connected at the bottom end surface of the upper clamping plate (52 j), and parallel lines are arranged in the axial direction of the groove length direction of the V-shaped holding plate (52 q); a relief port (52 r) for avoiding the vertical movement path of the reference part (52 k) is vertically penetrated through the V-shaped holding plate (52 q).

5. A zero reference adjustment device as defined in claim 1, wherein: the guide posts (52 s) are two and are arranged axially symmetrically along the axis of the cutter depth adjusting bolt (52 f).

6. A zero position reference adjustment device as claimed in claim 1 or 2 or 3 or 4, wherein: the vertical penetrating of clamp plate (52 c) department is provided with the passing hole (52 t) that can supply rotatory sleeve (52 g) to penetrate, and behind passing hole (52 t) are run through from bottom to top to the top of rotatory sleeve (52 g), and then through radial locking screw and holding screw formula rigid coupling in the power output shaft department of sword dark adjustment motor (52 h).

7. A zero position reference adjustment device as claimed in claim 1 or 2 or 3 or 4, wherein: a zero reference guide rail (52 u) with a vertical guiding direction is fixedly connected to the outer side plate surface of the upper clamping plate (52 j), and a guiding clamping groove is concavely formed in the inner side plate surface of the zero reference sliding plate (52 a) so as to form fixedly connected fit with a zero reference guide block on the zero reference guide rail (52 u); the outer side plate surface of the zero reference slide plate (52 a) is fixedly connected with a knife depth adjusting guide rail (52 v) with a vertical guiding direction, and the inner side plate surface of the knife depth adjusting slide block (52 b) is also concavely provided with a guiding clamping groove so as to form fixedly connected fit with the knife depth adjusting guide block on the knife depth adjusting guide rail (52 v).

8. A zero position reference adjustment device as claimed in claim 1 or 2 or 3 or 4, wherein: the device comprises a limiting pin shaft, wherein a pin shaft hole radially penetrates through the upper section of a shaft body of a knife depth adjusting bolt (52 f), the limiting pin shaft penetrates into the pin shaft hole, and two ends of the limiting pin shaft protrude out of the shaft wall surface of the knife depth adjusting bolt (52 f) to form a limiting bulge (52 n); the limiting slots (52 m) are arranged in two groups and are axisymmetrically arranged along the axis of the rotary sleeve (52 g).