CN113300282A

CN113300282A - Double-combined-cutter type device for removing external insulation skin of metal rod

Info

Publication number: CN113300282A
Application number: CN202110583372.1A
Authority: CN
Inventors: 刘金生; 施伟
Original assignee: Seksun Technology Suzhou Co ltd
Current assignee: Seksun Technology Suzhou Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-08-24
Anticipated expiration: 2041-05-27
Also published as: CN113300282B

Abstract

The invention relates to a double-combined cutting type device for removing an external insulation skin of a metal rod, which comprises a machine base, a tool rest, a tool and a driving unit, wherein the tool comprises a cutting knife and a drawing knife which are distributed in sequence along the insertion direction of the end part of the metal rod in a staggered manner, and the driving unit comprises a first driving mechanism for synchronously driving the cutting knife and the drawing knife to move oppositely so as to control the feeding and withdrawing of the cutting knife, a second driving mechanism for driving a frame body to rotate freely and a third driving mechanism for driving a seat frame to move linearly. The combined cutter formed by the cutting knife and the drawing knife can prevent the cutter from cutting through the outer insulating skin to cause surface damage of the metal rod, and meanwhile, the cutting knife and the drawing knife are distributed in a staggered mode in the front and back direction, so that torque can be generated at the groove cutting position of the cut outer insulating skin in the drawing process, the outer insulating skin can be smoothly pulled off from the groove cutting position conveniently, and the torque can damage the adhesion of the outer insulating skin and the metal rod, so that the cut outer insulating skin can be pulled off from the end part of the metal rod conveniently.

Description

Double-combined-cutter type device for removing external insulation skin of metal rod

Technical Field

The invention discloses a metal rod, which is mainly used for a newly developed charging conductor material in the field of new energy automobiles, belongs to the field of metal rod external insulation skin removing equipment, and particularly relates to a double-combined cutting type metal rod external insulation skin removing device.

Background

The removal of the outer insulating skin of the metal rod mainly comprises two processes:

(1) cutting the outer insulating skin;

(2) and drawing to remove the outer insulating skin.

Currently, there are basically two ways to cut the outer insulation skin: 1) rotating the product, and turning by using a cutter; 2) and positioning the product, and cutting by adopting the rotation of a cutter. And the product rotation mode is adopted, once the length of the metal rod is long, the implementation is difficult, and as for the cutter rotation mode, the probability of surface damage of the metal rod caused by transitional cutting is high.

As for the removal of the external insulation skin by drawing, a common method is to cut the external insulation skin by adopting a drawing chuck to pull the cut external insulation skin out of the end part of the metal rod after cutting, at the moment, an obvious defect exists, once the clamping force of the chuck is insufficient or too large, the cut external insulation skin is difficult to separate from the end part of the metal rod, so that the difficulty of removing the external insulation skin by drawing is high, a certain bonding force exists between the external insulation skin and the metal rod, the removal of the external insulation skin at the end part of the metal rod is difficult to realize efficiently, meanwhile, the reject ratio of the removal of the external insulation skin is high, and the efficiency and the productivity are low.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a brand-new double-combined-cutter type device for removing the external insulating skin of the metal rod.

In order to solve the technical problems, the invention adopts the following technical scheme:

a device for removing the external insulation skin of a double-combination cutting type metal rod comprises

A base including a base frame and a seat frame;

a tool holder including a holder body having a metal rod end insertion hole;

the cutter comprises a cutting knife and a drawing knife which are movably arranged on the frame body along the radial direction of the insertion hole, wherein the cutting knife and the drawing knife are sequentially distributed along the insertion direction of the end part of the metal rod in a staggered manner, the shortest distance from the edge part of the cutting knife to the center of the insertion hole is L1, the shortest distance from the edge part of the drawing knife to the center of the insertion hole is L2, and L1 is less than L2;

and the driving unit comprises a first driving mechanism, a second driving mechanism and a third driving mechanism, wherein the first driving mechanism is arranged on the seat frame and is used for synchronously driving the cutting knife and the drawing knife to move towards each other so as to control the feeding and withdrawing of the cutting knife, the second driving mechanism is used for driving the seat frame body to freely rotate around the center of the insertion hole, and the third driving mechanism is arranged on the underframe and drives the seat frame to linearly move along the extension direction of the insertion hole, wherein the maximum cutting depth of the cutting knife is h1, the maximum cutting depth of the drawing knife is h2, the thickness of an outer insulating skin of the metal rod to be removed is d, d/3 < h1 < d, and d/4 < h2 < h 1.

Preferably, the cutting knife and the drawing knife are both roller cutting knives, wherein at least one cutting knife is arranged, the central line of each cutting knife is parallel to the central line of the insertion hole, and the blade parts of a plurality of cutting knives are arranged in an aligned mode in the circumferential direction of the insertion hole; the drawing knife has at least one drawing knife, the central line of each drawing knife is parallel to the central line of the insertion hole, and the blade parts of the plurality of drawing knives are aligned in the circumferential direction of the insertion hole. On the premise that the surface of the metal rod cannot be damaged, the cutting mark and the drawing mark are convenient to form in a roll cutting mode, and the outer insulating skin at the end part of the metal rod can be more favorably drawn and removed under the action of a plurality of cutters.

According to a particular embodiment and preferred aspect of the invention, the cutting blade has a shank; the drawing knife has two and is arranged side by side at intervals to form a drawing knife group, wherein the cutting knife and the drawing knife group are correspondingly arranged on two opposite sides of the insertion hole. The front and back of the knife are staggered and distributed on two opposite sides, so that the outer insulating skin can be smoothly twisted off from the cutting groove after being cut off, and the outer insulating skin can be separated from the metal rod more easily after being cut off in the drawing process.

Preferably, a first sliding groove and a second sliding groove extending along the radial direction of the insertion hole are formed on two opposite sides of the insertion hole, wherein the first sliding groove and the second sliding groove are respectively arranged to penetrate through the insertion hole, the cutting knife is arranged in the first sliding groove in a sliding manner through the first sliding seat, and the drawing knife group is arranged in the second sliding groove in a sliding manner through the second sliding seat. The benefits of this arrangement are: the synchronous feed and withdrawal of the cutting knife and the drawing knife are convenient to implement.

According to a further embodiment and preferred aspect of the present invention, a first cutter groove and a second cutter groove are respectively provided on the first slide and the second slide, wherein the cutter comprises a first cutter seat provided in the first cutter groove, a first disc blade provided on the first cutter seat, and the first cutter seat is fixedly or freely rotatably provided in the first cutter groove around the center of the first disc blade; the drawing knife comprises a second knife holder arranged in the second knife groove and a second disc blade arranged on the second knife holder, the second knife holder is fixedly arranged in the second knife groove or freely rotatably arranged in the second knife groove around the center of the second disc blade, and two drawing knives of the drawing knife group are arranged in an aligned mode at intervals. The disc blade is very convenient to assemble, and the cutter can be hidden to form protection when the disc blade is not cut.

Preferably, the edge of the first disc blade is in a V shape, the edge of the second disc blade is in a frustum shape, wherein the outer diameter of a conical surface formed by the edge of the second disc blade is gradually increased along the insertion direction of the end part of the metal rod, and the taper angle A is less than or equal to 45 degrees. Here, be convenient for form the grooving of not cutting through by the V type cutting, and have the drawing blade of cone angle, not only can provide stable drawing impetus so that best angle and dynamics are drawn, also make things convenient for the outer insulation skin and the breaking away from of drawing the blade very after drawing moreover, the setting of cone angle simultaneously can also effectively prolong the life of cutter, realizes the excision of outer insulation skin more accurately.

According to a further embodied and preferred aspect of the invention, the tool holder further comprises a holder wheel provided at an end of the holder body remote from the insertion hole, and a support roller provided on the holder to support the holder wheel freely rolling. Therefore, the tool rest can only rotate in situ, and the feeding and the withdrawing of the tool are further facilitated.

Preferably, the first driving mechanism comprises a driving shaft which moves linearly along the extending direction of the insertion hole and freely rotates around the axis of the driving shaft, a wheel disc which is concentric with and synchronously moves with the driving shaft, a transmission connecting rod which passes through the frame wheel and is in transmission connection with the cutting knife and the drawing knife, and a transmission part which is positioned between the wheel disc and the frame wheel and can drive the transmission connecting rod to move so as to control the feeding and the retracting of the cutting knife. In the linear motion of the driving shaft, the driving connecting rod drives the cutting knife and the drawing knife to synchronously feed and withdraw.

Furthermore, a shaft sleeve is fixedly arranged in the middle of the frame wheel, the driving shaft is positioned in the shaft sleeve, and the wheel disc and the driving shaft synchronously move and are arranged in a sliding mode relative to the shaft sleeve. The arrangement of the shaft sleeve facilitates the rotation of the frame wheel and the cutter, and also facilitates the assembly of the driving shaft, the wheel disc and the transmission part.

According to another specific implementation and preferable aspect of the invention, the shaft sleeve is provided with elongated slots extending along the length direction of the shaft sleeve, the driving shaft is fixedly connected with the wheel disc through sliding blocks arranged in the elongated slots in a sliding manner, wherein at least one elongated slot is formed, and the sliding blocks and the elongated slots are arranged in one-to-one correspondence. Therefore, the linear motion of the driving shaft relative to the shaft sleeve is realized, and the synchronous rotation of the driving shaft relative to the shaft sleeve can be realized, so that the feeding and retracting operations of the cutter are completed.

Preferably, the transmission part comprises transmission modules which are fixed on the wheel disc and correspond to the transmission connecting rods one to one, wherein a waist hole is formed in each transmission module, the transmission connecting rods are rotatably arranged on the frame body from the middle parts, one end parts of the transmission connecting rods are connected with the cutting knife or the drawing knife, the other end parts of the transmission connecting rods penetrate through the frame wheel and are slidably arranged in the corresponding waist holes, and when the wheel disc linearly moves relative to the frame wheel, the transmission connecting rods synchronously rotate and drive the cutting knife and the drawing knife to synchronously feed and retract. The synchronous opposite movement of the cutting knife and the drawing knife along the radial direction of the insertion hole is realized through the relative movement between the waist hole and the transmission connecting rod.

According to another embodiment and a preferred aspect of the present invention, the rack wheel is provided with a top rod parallel to the driving shaft, the wheel disc is correspondingly provided with a socket, wherein the top rod penetrates out of the socket, the transmission part further comprises an elastic member sleeved on the periphery of the top rod and having two end portions abutting against between the rack wheel and the socket, wherein the elastic member maintains the movement tendency that the driving shaft protrudes out of the end portion of the shaft sleeve and the cutting knife and the drawing knife are hidden in the rack body. That is, the elastic member serves two functions, one, for the relative positioning of the drive shaft and the shaft sleeve; and secondly, keeping the cutter at a hidden position.

Preferably, the first driving mechanism further comprises a screw rod, a nut, a first motor and a coupler, wherein the axis of the screw rod coincides with the axis of the driving shaft, the nut is fixed on the seat frame and is matched with the screw rod, the first motor is arranged on the seat frame in a sliding mode and is used for driving the screw rod to rotate, the coupler is arranged at the end portion, penetrating out of the nut, of the screw rod, after the coupler is in abutting contact with the driving shaft, the driving shaft and the shaft sleeve move synchronously, and the cutting knife and the drawing knife rotate around the center of the insertion hole and cut into the outer insulating skin inwards along the radial direction of the insertion hole. Thereby facilitating the axial rotation and axial linear motion of the drive shaft.

Preferably, the second driving mechanism comprises a transmission wheel fixed on the periphery of the shaft sleeve, a second motor fixed on the seat frame, and a transmission belt for driving and connecting the transmission wheel and the second motor.

In this example, the drive wheel is a gear, the output end of the second motor is provided with an output gear, and the drive belt is a gear belt.

Preferably, a sliding rail extending along the insertion direction of the end part of the metal rod is arranged on the underframe, the seat frame is arranged on the sliding rail in a sliding manner, and the third driving mechanism comprises a telescopic rod which is arranged between the underframe and the seat frame and has the movement direction consistent with the length direction of the sliding rail.

In addition, a counter with an induction area is installed on the seat frame, an induction sheet is fixedly arranged on the wheel disc, the induction sheet rotates along with the wheel disc and passes through the induction area, the counter counts once for a movement period by the fact that the induction sheet bypasses the induction area twice in the front and back direction, and the wheel disc rotates for a circle when counting once. The number of the rotation turns of the cutter can be obtained through the number of the rotation turns of the wheel disc, and then the feed amount and the withdrawal amount can be obtained.

Preferably, the sensing pieces are two and evenly distributed around the circumference of the wheel disc, and the wheel disc rotates for half a turn when the counter counts once. The control of feed amount and withdrawal amount is realized more accurately, and thus, the distance from the movement of the screw rod forms double verification to ensure that the cutting knife cannot cut through the outer insulating skin to cause the damage to the surface of the metal rod.

Preferably, the scrap receiving chute is fixed to the seat frame below the holder body, wherein after the tool is pulled, the outer insulating skin is separated from the end of the metal rod and separated from the tool and falls to the scrap receiving chute. Here, through the setting of waste material receiving groove, be convenient for get rid of the collection of back external insulation skin.

Meanwhile, by the structure, the fixed-length removal of the external insulation skin at the end part of the metal rod can be realized by controlling the length of the metal rod sent into the insertion hole.

Due to the implementation of the technical scheme, compared with the prior art, the invention has the following advantages:

the combined cutter formed by the cutting knife and the drawing knife can prevent the cutter from cutting through the outer insulating skin to cause surface damage of the metal rod, and meanwhile, the cutting knife and the drawing knife are distributed in a staggered mode in the front and back direction, so that torque can be generated at the groove cutting position of the cut outer insulating skin in the drawing process, the outer insulating skin can be smoothly pulled off from the groove cutting position conveniently, and the torque can damage the adhesion of the outer insulating skin and the metal rod, so that the cut outer insulating skin can be pulled off from the end part of the metal rod conveniently.

Drawings

The invention is described in further detail below with reference to the figures and specific examples.

FIG. 1 is a schematic structural view of a device for removing an external insulation sheath of a metal rod according to the present invention;

FIG. 2 is a schematic front view of FIG. 1;

FIG. 3 is a schematic top view of FIG. 1;

FIG. 4 is a schematic view of a portion of the tool holder and cutting tool of FIG. 1;

FIG. 5 is a schematic front view of FIG. 4;

FIG. 6 is a schematic sectional view taken along line A-A in FIG. 5;

FIG. 7 is a schematic sectional view taken along line B-B in FIG. 5;

FIG. 8 is a schematic sectional view taken along line C-C in FIG. 5;

FIG. 9 is a schematic sectional view taken along line D-D in FIG. 5;

wherein: 1. a machine base; 10. a chassis; 10a, a slide rail; 11. a seat frame;

2. a tool holder; 20. a rack body; 20a, an insertion hole; 21. a frame wheel; 210. a shaft sleeve; 211. a top rod;

3. a cutter; 30. a cutting knife; 301. a first tool apron; 302. a first disc blade; 31. drawing a knife; 311. a second tool apron; 312. a second disc blade; c1, a first chute; c2, a second chute; z1, a first slide; z10, a first sipe; z2, a second slide; z20, a second sipe;

4. a drive unit; 41. a first drive mechanism; 410. a drive shaft; 411. a wheel disc; 412. a transmission connecting rod; 413. a transmission member; m1, a transmission module; m10, waist hole; e. a bearing; f. a socket; m2, an elastic member; 414. a screw rod; 415. a nut; 416. a first motor; 417. a coupling; 418. a feed origin sensor; a. a long groove; b. a slider; 42. a second drive mechanism; 420. a driving wheel; 421. a second motor; 422. a transmission belt; 43. a third drive mechanism; 430. a telescopic rod;

5. supporting the rollers;

6. an induction sheet; J. a counter; q, a sensing area;

7. and a waste material receiving groove.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1, the device for removing the outer insulation skin of the double-combined cutting type metal rod of the present embodiment includes a machine base 1, a tool rest 2, a tool 3, and a driving unit 4.

The machine base 1 comprises a base frame 10 and a seat frame 11, wherein a sliding rail 10a is arranged on the base frame 10, and the seat frame 11 is arranged on the sliding rail 10a in a sliding manner.

The tool holder 2 includes a holder body 20 having a metal rod end insertion hole 20a, and a holder wheel 21 provided at an end of the holder body 20 remote from the insertion hole 20 a.

As shown in fig. 2 and 3, the carriage 11 is provided with support rollers 5 that freely roll support carriage wheels 21. Therefore, the tool rest 2 can only rotate in situ, and the tool 3 can conveniently perform rotary cutting on the outer insulating skin of the metal rod.

Specifically, there are two sets of support rollers 5, which are correspondingly disposed at two opposite sides of the lower portion of the frame wheel 21.

As shown in fig. 4, the cutter 3 is provided on the holder body 20, and includes a cutting blade 30 and a drawing blade 31 movably provided on the holder body 20 in a radial direction of the insertion hole 20a, wherein the cutting blade 30 and the drawing blade 31 are both roll cutters.

Referring to fig. 5 and 6, the cutting blade 30 and the drawing blade 31 are sequentially and alternatively arranged along the insertion direction of the end of the metal rod, and the shortest distance from the blade of the cutting blade 30 to the center of the insertion hole 20a is L1, and the shortest distance from the blade of the drawing blade 31 to the center of the insertion hole 20a is L2, wherein L1 < L2. Thus, the depth of the cutting groove formed by the cutting blade 30 is ensured to be larger than the depth of the cutting groove formed by the drawing blade 31.

In order to ensure that the surface of the metal rod is not damaged during cutting and facilitate the drawing removal of the outer insulating sheath after cutting, in this example, the maximum cutting depth of the cutting knife 30 is h1, the maximum cutting depth of the drawing knife 31 is h2, and if the thickness of the outer insulating sheath of the metal rod to be removed is d, h1=3/4d, h2=1/3 d.

Referring to fig. 7 to 9, the cutting blade 30 has one, the drawing blade 31 has two, and the two are arranged side by side in the vertical direction at intervals to form a drawing blade set, wherein the cutting blade 30 and the drawing blade set are correspondingly disposed at two opposite sides of the insertion hole. Here, misplace and be located relative both sides distribution around by the sword, the excision back external insulation skin of not only being convenient for levels the twist-off from the grooving department, more is favorable to cutting off the breaking away from of back external insulation skin and metal pole moreover drawing the in-process (because, at the in-process of twist-off, can cut off the adhesion nature between back external insulation skin and the metal pole bad, consequently only need draw knife tackle pulling external insulation skin, can realize breaking away from of external insulation skin and metal pole fast).

Specifically, a first slide groove c1 and a second slide groove c2 extending along the radial direction of the insertion hole 20a are formed on two opposite sides of the insertion hole 20a, wherein the first slide groove c1 and the second slide groove c2 are respectively arranged to penetrate through the insertion hole 20a, the cutting knife 30 is slidably arranged in the first slide groove c1 through a first slide base z1, and the drawing knife group is slidably arranged in the second slide groove c2 through a second slide base z 2. The benefits of this arrangement are: the synchronous feed and withdrawal of the cutting knife and the drawing knife are convenient to implement.

In this example, a first cutting groove z10 and a second cutting groove z20 are provided on the first slide z1 and the second slide z2, respectively, wherein the cutting knife 30 comprises a first cutting seat 301 arranged in the first cutting groove z10, and a first disc blade 302 arranged on the first cutting seat 301.

Specifically, the first holder 301 is freely rotatably disposed in the first pocket z10 about the center of the first disk blade, and the blade portion of the first disk blade 302 is V-shaped. The V-shaped cut facilitates the formation of an uncut cut groove.

The drawing tool 31 includes a second tool seat 311 provided in the second tool groove z20, and a second disc blade 312 provided on the second tool seat 311.

The second tool holder 311 is rotatably disposed in the second tool groove z20 around the center of the second disc blade 312, and the two drawing tools 31 of the drawing tool group are vertically spaced and aligned.

The outer diameter of the tapered surface formed by the blade portion of the second disc blade 312 is gradually increased in the insertion direction of the end portion of the metal rod, and the taper angle a =45 °. Here, by the drawing blade that has the cone angle, not only can provide stable drawing impetus so that best angle and dynamics draw, also make things convenient for the outer insulation skin and the breaking away from of drawing the blade very after drawing moreover, the setting of cone angle can also effectively prolong the life of cutter, realizes the excision of outer insulation skin more accurately.

The taper angle a is preferably as small as possible. The reason is simple, no edge breakage occurs in the aspect of service life, and the possibility that the outer insulating skin is stuck after being drawn is low.

The driving unit 4 includes a first driving mechanism 41 provided on the seat frame 11 for synchronously driving the cutting blade 30 and the drawing blade 31 to move toward each other to control the feeding and retracting of the blade, a second driving mechanism 42 for driving the holder body 20 to freely rotate about the center of the insertion hole 20a, and a third driving mechanism 43 provided on the base frame 10 to drive the seat frame 11 to linearly move along the slide rail 10 a.

Specifically, the first driving mechanism 41 includes a driving shaft 410 which moves linearly along the extending direction of the insertion hole 20a and freely rotates around its own axis, a wheel disc 411 which is concentric with and moves synchronously with the driving shaft 410, a transmission link 412 which passes through the frame wheel 21 and is in transmission connection with the first slide seat z1 and the second slide seat z2, a transmission component 413 which is positioned between the wheel disc 411 and the frame wheel 21 and can drive the transmission link 412 to move so as to control the feeding and retracting of the knife, a screw rod 414 whose axis coincides with the axis of the driving shaft 410, a nut 415 which is fixed on the seat frame 11 and is matched with the screw rod 414, a first motor 416 which is slidably arranged on the seat frame 11 and is used for driving the screw rod 414 to rotate, and a coupler 417 which is arranged at the end of the screw rod 414 and penetrates out of the nut 415.

In this example, the wheel disc 411 pushes the transmission link 412 to drive the cutting knife 30 and the drawing knife 31 to synchronously feed and retract by the linear motion of the driving shaft 410.

Specifically, a shaft sleeve 210 is fixedly arranged in the middle of the frame wheel 21, the driving shaft 410 is positioned in the shaft sleeve 210, and the wheel disc 411 and the driving shaft 410 move synchronously and are arranged in a sliding manner relative to the shaft sleeve 210. The arrangement of the shaft sleeve facilitates the rotation of the frame wheel and the cutter, and also facilitates the assembly of the driving shaft, the wheel disc and the transmission part.

The sleeve 210 is provided with a long groove a extending along the longitudinal direction thereof, and the driving shaft 410 is fixedly connected to the wheel disc 411 through a slider b slidably disposed in the long groove a.

In this example, there are two long grooves a uniformly distributed around the circumference of the shaft sleeve 210, and there are two sliding blocks b corresponding to the long grooves a one to one. Therefore, the linear motion of the driving shaft relative to the shaft sleeve is realized, and the synchronous rotation of the driving shaft relative to the shaft sleeve can be realized, so that the feeding and retracting operations of the cutter are completed.

The transmission part 413 comprises transmission modules m1 fixed on the wheel disc 411 and corresponding to the transmission links 412 one by one, wherein a waist hole m10 is formed on each transmission module m1, the transmission links 412 are rotatably arranged on the rack body 20 from the middle part, one end part of the transmission link 412 is connected with the first sliding seat z1 or the second sliding seat z2, the other end part of the transmission link 412 penetrates through the rack wheel 21 and is slidably arranged in the corresponding waist hole m10, and when the wheel disc linearly moves relative to the rack wheel, the transmission links synchronously rotate and drive the cutting knife and the drawing knife to synchronously feed and retract. The synchronous opposite movement of the cutting knife and the drawing knife along the radial direction of the insertion hole is realized through the relative movement between the waist hole and the transmission connecting rod.

In this example, there are two drive links 412, two for the drive module m1, and a free rolling bearing e is formed at the end of the drive link 412 remote from the tool 3, wherein the self bearing e slides in the kidney hole m 10.

As for the two waist holes m10, they are inclined holes and symmetrically arranged, and at the same time, the distance between the centers of the two waist holes m10 from left to right is gradually increased.

Meanwhile, considering the automatic retraction of the knife, in this example, the rack wheel 21 is provided with a top rod 211 parallel to the driving shaft 410, the wheel disc 411 is correspondingly provided with a socket f, wherein the top rod 211 penetrates out of the socket f, the transmission part 413 further comprises an elastic member m2 which is sleeved on the periphery of the top rod 211 and two end parts of which are abutted between the rack wheel 21 and the socket f, wherein the elastic member m2 keeps the movement tendency that the driving shaft protrudes out of the end part of the shaft sleeve and the cutting knife and the drawing knife are hidden in the rack body. That is, the elastic member serves two functions, one, for the relative positioning of the drive shaft and the shaft sleeve; and secondly, keeping the cutter at a hidden position.

In this example, after the shaft coupling 417 abuts against the driving shaft 410, the driving shaft 410 and the sleeve 210 move synchronously, and the cutting blade 30 and the drawing blade 31 rotate around the center of the insertion hole 20a and cut into the outer insulation skin radially inward of the insertion hole 20 a. Thereby facilitating the axial rotation and axial linear motion of the driving shaft to complete the operation of feeding and retracting.

Meanwhile, it should be noted that, when the external insulation skin is not cut off, the coupling 417 and the driving shaft 410 are disconnected, and after the cutter abuts against the surface of the external insulation skin, the distance that the screw rod 414 advances is the feed amount of the cutting knife 30 and the drawing knife 31.

Here, it should be noted that the coupling 417 is provided to avoid the influence on the rotation of the screw 414 when the cutter 3 rotates to cut, that is, when the rotation speed of the cutter 3 and the rotation speed of the screw 414 may not be equal, it is also possible to implement the rotation.

In addition, once the drawing is completed, the screw 414 and the first motor 416 need to be synchronously retracted, so that a feed origin sensor 418 may be further provided on the seat frame 11, and once the designated position of the first motor 416 is retracted to the position of the feed origin sensor 418, the first motor 416 may be stopped, and the coupling 417 and the driving shaft 410 are in a disconnected state.

The second driving mechanism 42 includes a driving wheel 420 fixed on the outer periphery of the sleeve 210, a second motor 421 fixed on the seat frame 11, and a driving belt 422 for driving and connecting the driving wheel 420 and the second motor 421.

In this example, the transmission wheel 420 is a gear, an output gear is mounted to an output end of the second motor 421, and the transmission belt 422 is a gear belt.

The third driving mechanism 43 includes a telescopic rod 430 disposed between the base frame 10 and the seat frame 11 and having a moving direction corresponding to the length direction of the slide rail 10 a.

As for the telescopic rod 430, a conventional air cylinder, hydraulic cylinder or oil cylinder is used.

In addition, a counter J with a sensing area Q is installed on the seat frame 11, a sensing piece 6 is further fixedly arranged on the wheel disc 411, the sensing piece 6 rotates along with the wheel disc 411 and passes through the sensing area Q, the counter J counts once by taking the sensing piece 6 to bypass the sensing area Q twice in front and at the back as a movement period, and the wheel disc 411 rotates for one circle every time. The number of the rotation turns of the cutter can be obtained through the number of the rotation turns of the wheel disc, and then the feed amount and the withdrawal amount can be obtained.

In this example, the sensing pieces 6 are two pieces and are uniformly distributed around the circumference of the wheel 411, so that the wheel 411 rotates half a turn every time the counter J counts. The control of feed amount and withdrawal amount is realized more accurately, and the distance of motion with the lead screw forms dual verification to ensure that the cutting knife can not cut through the outer insulating skin to cause the damage on the surface of the metal rod.

In addition, a scrap receiving chute 7 is fixed to the seat frame 11 below the rack body 20, wherein after the cutter 3 is pulled out, the outer insulating sheath is separated from the end of the metal rod and separated from the cutter to fall to the scrap receiving chute 7. Here, through the setting of waste material receiving groove, be convenient for get rid of the collection of back external insulation skin.

In summary, the implementation process of this embodiment is as follows:

the end of the metal rod, from which the outer insulation is to be removed, is extended into the holder body 20 from the insertion hole 20a, then the first motor 416 and the lead screw 414 are moved leftward, so that the coupling 417 is abutted against the driving shaft 410 and collides against the driving shaft 410 to move into the bushing 210, the wheel disc 411 is moved leftward at this time, and under the collision of the waist hole m10, the driving link 412 is rotated, and the first sliding seat z1 and the second sliding seat z2 are pushed to move toward each other until the cutting knife 30 collides against the outer side of the outer insulation, the cutting groove depth is set according to the thickness of the outer insulation, then the second motor 421 is started, the bushing 210, the holder wheel 21, and the holder body 20 are rotated, at this time, the wheel disc 411 and the driving shaft 410 are rotated synchronously, so that the cutting knife 30 and the drawing knife 31 not only rotate around the center of the insertion hole 20a to roll off the circumferential surface of the outer insulation, but also form a cutting amount during the synchronous opposite movement of the cutting knife 30 and the drawing knife 31, after the direct cutting knife 30 finishes the set grooving depth, the outer insulating skin is not cut off at this time, and the drawing knife 31 also cuts into the outer insulating skin, the first motor 416 and the second motor 421 are both in a stop state, finally, the cutting knife 30 and the drawing knife 31 move rightwards together through the pushing motion of the telescopic rod 430, the outer insulating skin is torn off from the grooving position and is pulled to be separated from the end part of the metal rod, then, the first motor 416 and the screw rod 414 are withdrawn, under the reset of the elastic piece m2, the wheel disc 411 moves rightwards, under the collision of the waist hole m10, the transmission connecting rod 412 rotates, and pushes the first sliding seat z1 and the second sliding seat z2 to move away from each other until the cutting knife 30 and the drawing knife 31 are reset after being separated from the outer insulating skin gradually, at this time, the outer insulating skin separated from the cutting knife 3 falls to the waste material receiving groove 7 below, and the coupler 417 and the driving shaft 410 are disconnected, the first motor 416 and the lead screw 414 are reset.

Of course, the feed amount (i.e. the depth of the notch) can also be counted by the number of times that the induction sheet 6 passes through the induction area Q, and the feed amount of the cutter is completed after the set number of times is completed.

Therefore, the present embodiment has the following advantages:

1. the combined cutter formed by the cutting knife and the drawing knife can prevent the possibility that the cutter cuts through the outer insulating skin to cause surface damage of the metal rod, and meanwhile, the cutting knife and the drawing knife are distributed in a staggered mode in the front and back direction, so that the cut-off cutting groove of the outer insulating skin can be driven to be twisted in the drawing process, the outer insulating skin can be conveniently flattened and twisted from the cutting groove, and the adhesion between the outer insulating skin and the metal rod can be damaged in the twisting process, so that the cut-off outer insulating skin can be conveniently pulled and separated from the end part of the metal rod;

2. the drawing blade with the taper angle can provide a stable drawing force application point so as to facilitate drawing at an optimal angle and force, the outer insulating skin can be separated from the drawing blade conveniently after drawing, and meanwhile, the taper angle can effectively prolong the service life of the cutter and realize cutting of the outer insulating skin more accurately;

3. the feed amount (namely the depth of the groove) can be controlled by the advancing distance of the screw rod and can be accurately controlled by counting the number of turns;

4. the method can be implemented automatically or semi-automatically, and has low reject ratio, high efficiency and high capacity;

5. the cutting position and depth are accurately controllable, and the fixed-length removal of the external insulation skin at the end part of the metal rod can be realized by controlling the length of the metal rod sent into the insertion hole;

6. simple structure, and convenient field debugging and maintenance.

The present invention has been described in detail in order to enable those skilled in the art to understand the invention and to practice it, and it is not intended to limit the scope of the invention, and all equivalent changes and modifications made according to the spirit of the present invention should be covered by the present invention.

Claims

1. The utility model provides a remove device of two combination sword cutting type metal pole external insulation skin which characterized in that: which comprises

A base including a base frame and a seat frame;

a tool holder including a holder body having a metal rod end insertion hole;

the cutter comprises a cutting knife and a drawing knife which are movably arranged on the frame body along the radial direction of the insertion hole, wherein the cutting knife and the drawing knife are sequentially and alternatively distributed along the insertion direction of the end part of the metal rod, the shortest distance from the blade part of the cutting knife to the center of the insertion hole is L1, the shortest distance from the blade part of the drawing knife to the center of the insertion hole is L2, and L1 is less than L2;

the driving unit comprises a first driving mechanism, a second driving mechanism and a third driving mechanism, wherein the first driving mechanism is arranged on the seat frame and used for synchronously driving the cutting knife and the drawing knife to move oppositely to control the cutting knife and the drawing knife to move, the second driving mechanism is used for driving the frame body to freely rotate around the center of the insertion hole, and the third driving mechanism is used for driving the seat frame to linearly move along the extension direction of the insertion hole and is arranged on the bottom frame, the maximum cutting depth of the cutting knife is h1, the maximum cutting depth of the drawing knife is h2, the thickness of an outer insulating skin of the metal rod to be removed is d, d/3 is more than h1 and less than d, and d/4 is more than h2 and more than h 1.

2. The device for removing the external insulation skin of the double combined cutting type metal rod according to claim 1, wherein: the cutting knife and the drawing knife are both roller cutting knives, wherein at least one cutting knife is arranged, the central line of each cutting knife is parallel to the central line of the insertion hole, and the cutting edges of a plurality of cutting knives are arranged in an aligned mode in the circumferential direction of the insertion hole; the drawing knife is provided with at least one drawing knife, the central line of each drawing knife is parallel to the central line of the insertion hole, and the blade parts of the plurality of drawing knives are aligned in the circumferential direction of the insertion hole.

3. The device for removing the external insulation skin of the double combined cutting type metal rod according to claim 2, wherein: the cutting knife is provided with one handle; the drawing knife is provided with two drawing knives which are distributed side by side at intervals to form a drawing knife group, wherein the cutting knives and the drawing knife group are correspondingly arranged on two opposite sides of the insertion hole.

4. The device for removing the external insulation skin of the double combination cutting type metal rod according to claim 3, wherein: and a first sliding groove and a second sliding groove which radially extend along the insertion hole are formed on two opposite sides of the insertion hole, wherein the first sliding groove and the second sliding groove are respectively communicated with the insertion hole, the cutting knife is slidably arranged in the first sliding groove through a first sliding seat, and the drawing knife group is slidably arranged in the second sliding groove through a second sliding seat.

5. The device for removing the external insulation skin of the double combined cutting type metal rod according to claim 4, wherein: a first cutter groove and a second cutter groove are respectively arranged on the first sliding seat and the second sliding seat, wherein the cutting knife comprises a first cutter seat arranged in the first cutter groove and a first disc blade arranged on the first cutter seat, and the first cutter seat is fixedly arranged in the first cutter groove or freely rotatably arranged in the first cutter groove around the center of the first disc blade; the drawing knife comprises a second knife seat arranged in the second knife groove and a second disc blade arranged on the second knife seat, the second knife seat is fixedly arranged in the second knife groove or freely rotatably arranged in the second knife groove around the center of the second disc blade, and two drawing knives of the drawing knife group are arranged in an aligned mode at intervals.

6. The device for removing the external insulation skin of the double combined cutting type metal rod according to claim 5, wherein: the cutting part of the first disc blade is V-shaped, the cutting part of the second disc blade is frustum-shaped, wherein the outer diameter of a conical surface formed by the cutting part of the second disc blade is gradually increased along the insertion direction of the end part of the metal rod, and the taper angle A is not more than 45 degrees.

7. The device for removing the external insulation skin of the double combined cutting type metal rod according to claim 1, wherein: the tool rest further comprises a frame wheel arranged at the end part of the frame body far away from the insertion hole, and a support roller for supporting the frame wheel in a free rolling mode is arranged on the seat frame.

8. The device for removing the external insulation skin of the double combination cutting type metal rod according to claim 7, wherein: the first driving mechanism comprises a driving shaft which moves linearly along the extension direction of the insertion hole and freely rotates around the axis of the first driving mechanism, a wheel disc which is concentric with the driving shaft and moves synchronously, a transmission connecting rod which penetrates through the frame wheel and is in transmission connection with the cutting knife and the drawing knife, and a transmission part which is positioned between the wheel disc and the frame wheel and can drive the transmission connecting rod to move so as to control the feeding and retracting of the cutting knife.

9. The device for removing the external insulation skin of the double combination cutting type metal rod according to claim 8, wherein: the middle of the frame wheel is fixedly provided with a shaft sleeve, the driving shaft is positioned in the shaft sleeve, and the wheel disc and the driving shaft synchronously move and are arranged in a sliding mode relative to the shaft sleeve.

10. The device for removing the external insulation skin of the double combination cutting type metal rod according to claim 9, wherein: the shaft sleeve is provided with a long groove extending along the length direction of the shaft sleeve, the driving shaft is fixedly connected with the wheel disc through a sliding block arranged in the long groove in a sliding mode, at least one long groove is formed in the driving shaft, and the sliding block and the long groove are arranged in a one-to-one correspondence mode.

11. The device for removing the external insulation skin of the double combination cutting type metal rod according to claim 9, wherein: the transmission part comprises transmission modules which are fixed on the wheel disc and correspond to the transmission connecting rods one to one, wherein each transmission module is provided with a waist hole, the transmission connecting rods are rotatably arranged on the frame body from the middle part, one end parts of the transmission connecting rods are connected with the cutting knife or the drawing knife, the other end parts of the transmission connecting rods penetrate through the frame wheel and are slidably arranged in the corresponding waist holes, and when the wheel disc is opposite to the frame wheel in linear motion, the transmission connecting rods synchronously rotate and drive the cutting knife and the drawing knife to synchronously feed and retract.

12. The device for removing the external insulation skin of the double gang tool cutting type metal rod as claimed in claim 11, wherein: the transmission part also comprises an elastic part which is sleeved on the periphery of the ejector rod and two end parts of which are abutted against the frame wheel and the plug socket, wherein the elastic part keeps the motion trend that the driving shaft protrudes out of the end part of the shaft sleeve and the cutting knife and the drawing knife are hidden in the frame body.

13. The device for removing the external insulation skin of the double gang tool cutting type metal rod as claimed in claim 12, wherein: the first driving mechanism further comprises a screw rod, a nut, a sliding device and a shaft coupling, wherein the shaft axis of the screw rod coincides with that of the driving shaft, the screw rod is fixed on the seat frame and is matched with the screw rod, the sliding device is arranged on the seat frame and is used for driving the screw rod to rotate, the first motor is arranged on the seat frame, the screw rod penetrates out of the end portion of the nut, the shaft coupling is in abutting contact with the driving shaft, the driving shaft and the shaft sleeve move synchronously, and the cutting knife and the drawing knife rotate around the center of the insertion hole and cut into the outer insulation skin along the radial direction of the insertion hole inwards.

14. The device for removing the external insulation skin of the double combination cutting type metal rod according to claim 9, wherein: the second driving mechanism comprises a driving wheel fixed on the periphery of the shaft sleeve, a second motor fixed on the seat frame, and a transmission belt used for driving and connecting the driving wheel and the second motor.

15. The device for removing the outer insulation skin of the double gang tool cutting type metal rod according to any one of claims 8 to 14, wherein: the counter is characterized in that a counter with an induction area is installed on the seat frame, an induction sheet is fixedly arranged on the wheel disc, the induction sheet rotates along with the wheel disc and passes through the induction area, the counter counts once for a movement period by the fact that the induction sheet bypasses the induction area twice in the front and back direction, and the wheel disc rotates for a circle when counting once.

16. The device for removing the external insulation skin of the double gang tool cutting type metal rod as claimed in claim 15, wherein: the induction piece have two, and round the circumference evenly distributed of rim plate, the counter is once counted, the rim plate rotates half a circle.

17. The device for removing the external insulation skin of the double combined cutting type metal rod according to claim 1, wherein: the chassis is provided with a sliding rail extending along the insertion direction of the end part of the metal rod, the seat frame is arranged on the sliding rail in a sliding manner, and the third driving mechanism comprises a telescopic rod which is arranged between the chassis and the seat frame and has the movement direction consistent with the length direction of the sliding rail.

18. The device for removing the external insulation skin of the double combined cutting type metal rod according to claim 1, wherein: and the waste material receiving groove is formed below the frame body and fixed on the seat frame, wherein after the cutter is pulled out, the outer insulating skin is separated from the end part of the metal rod and separated from the cutter to fall to the waste material receiving groove.