Clamping mechanism and cable insulation layer cutting device using same
Technical Field
The invention relates to the field of industrial manufacturing, in particular to a clamping mechanism and a cable insulation layer cutting device using the same.
Background
At present, in the fields of electric power, railways and the like, the traditional manual stripping and cutting method, such as a manual cutting method of a cable knife, is still adopted for stripping an outer shielding layer and a main insulating layer of a power transmission cable; a few workers complete the cable stripping and cutting by means of a manual stripping and cutting device.
However, these 2 methods all have obvious disadvantages:
1) The manual cutting of the cable knife has extremely high operation requirement on workers, and is often different from person to person, and can be circulated without seal, so that the insulating layer or copper core of the cable is scratched and damaged. Not only causes the waste and increase of the cost, but also has potential safety hazard;
2) The working efficiency is low. The staff is required to apply brute force cutting for a long time, so that time and effort are wasted, and quality and quantity are not guaranteed;
3) The operation is laborious and the steps are complicated. The manual stripping and cutting device is usually clamped by a plane, so that resistance is increased during movement, the operation difficulty is increased, the surface of a stripping and cutting cable is more likely to be damaged, friction is reduced by pre-smearing lubricant, and the operation is complicated;
4) The manual stripper has single operation function, generally has only circular cutting, transverse cutting or oblique circular cutting functions, and usually needs a plurality of tools to be matched for use when stripping and cutting the cable.
In order to solve the above drawbacks, it is needed to provide a clamping device which is simple to use, convenient to operate and good in cutting effect, and a cutting device using the clamping device.
Disclosure of Invention
It is an object of the present invention to provide a clamping mechanism that solves one or more of the above mentioned problems of the prior art.
According to one aspect of the invention, a clamping mechanism is provided for clamping a rope or a tube or the like, and is characterized by comprising a plurality of sliding blocks, sliding block pins, a sliding base plate and a sliding groove plate, wherein the sliding base plate and the sliding groove plate are annular and coaxially arranged and can be mutually and rotatably fixed; the sliding chassis is provided with sliding grooves matched with the sliding blocks uniformly on the annular surface, and the sliding grooves are formed in the radial direction on the sliding chassis; the sliding block can move along the sliding groove to approach or depart from the center of the sliding chassis; the sliding block pin is arranged corresponding to the sliding block and can drive the sliding block to reciprocate along the sliding groove; the sliding groove disc is uniformly provided with sliding pin grooves with the same number as the sliding pins on the annular surface, and all the sliding block pins are arranged in the corresponding sliding pin grooves and move in the sliding pin grooves; and can synchronously approach or separate from the center of the chute disc.
In some embodiments, the sliding block is provided with a sliding pin hole, the sliding pin hole is matched with the sliding block pin, and the axis of the sliding pin hole is parallel to the central axis of the sliding chassis; one end of the sliding block pin is connected to the sliding pin hole, and the other end of the sliding block pin penetrates through the sliding pin hole.
In some embodiments, the sliding block is U-shaped, two parallel surfaces of the sliding block are provided with sliding pin holes through which sliding block pins can pass simultaneously, and the groove part of the sliding block is clamped on the annular surface of the sliding groove disk outwards from the inner ring of the sliding groove disk.
In some embodiments, the slide chassis comprises a first slide chassis and a second slide chassis, the first slide chassis and the second slide chassis being on opposite sides of the chute tray, clamping the chute tray; the first sliding chassis and the second sliding chassis are provided with sliding grooves on the annular surfaces of the sliding groove discs.
In some embodiments, the end of the sliding block, which points to the central axis of the chute disk, is provided with a bearing or a roller, the axis of which is parallel to the axis of the clamped rope or tube and can be rotated by friction of the clamped rope or tube.
In some embodiments, the end of the sliding block, which points to the central axis of the chute disc, is inwards recessed with a cavity, a ball is arranged in the cavity, most of the ball is clamped in the cavity, and the small part of the ball is exposed out of the cavity and can be rubbed and rolled by the clamped rope or tube.
In some embodiments, a through arc-shaped groove is formed in the annular surface of the chute disc, and a circle where the arc-shaped groove is positioned is coaxial with the chute disc; the sliding chassis is provided with a fixing hole, and the fixing hole is provided with internal threads; the screw shaft is provided with external threads matched with the internal threads of the fixing hole, and one end of the screw shaft, which is not provided with the compression cap, passes through the arc-shaped groove and is screwed into the fixing hole.
In some embodiments, a clamping spring is arranged in the sliding groove, one end of the clamping spring abuts against the sliding block, the other end of the clamping spring abuts against the inner wall of the sliding groove, and the clamping spring can abut against the sliding block to approach the axis of the sliding chassis in the sliding groove.
In some embodiments, a surface of the sliding chassis facing the chute disc is provided with a plurality of indexing holes inwards along the axial direction of the sliding chassis, all the indexing holes are positioned on the same circle, and the center of the circle is positioned on the central axis of the chute disc; the ring surface of the chute disc is provided with a through bolt hole, and the bolt hole can be communicated with the indexing hole in the process that the chute disc and the sliding chassis mutually axially rotate; the indexing bolt is also included, and when the bolt hole is communicated with the indexing hole, the bolt can be inserted.
In some embodiments, the edge of the chute disc is provided with a ratchet, the edge of the sliding chassis is provided with a poking piece matched with the ratchet, and when the end part of the poking piece abuts against the ratchet, the chute disc and the sliding chassis can be prevented from rotating relatively.
In some embodiments, the plectrum is arranged at the edge of the sliding chassis through a plectrum shaft, and the central axis of the plectrum shaft is parallel to the central axis of the sliding chassis; the poking piece shaft penetrates through the middle of the poking piece, one end of the poking piece can prop against the ratchet, and a reset spring is arranged between the other end of the poking piece and the outer wall of the sliding chassis; the paddle can move away from the ratchet when the return spring is compressed.
The middle clamping device has simple structure, convenient operation and accuracy; the clamping mechanism can reduce friction force and work in a lasting and labor-saving manner.
On the other hand, the cable insulation layer cutting device of the clamping mechanism is further provided, and is characterized by further comprising a transmission mechanism for driving the sliding bottom coiling shaft to rotate; the cutting tool is characterized by further comprising a cutting tool, wherein the cutting edge of the cutting tool can abut against the clamped rope or tube, and the clamped rope or tube is circular cut along with the rotation of the whole clamping mechanism.
The cutting device does not need to cut the cable insulating layer, can work in a lasting and labor-saving manner, has higher efficiency than manual cutting of the cable insulating layer, greatly reduces the requirements on constructors, and achieves an ideal stripping effect of the cable insulating layer.
Drawings
FIG. 1 is an exploded view of a clamping mechanism;
FIG. 2 is another exploded view of the clamping mechanism;
FIG. 3 is a schematic view of an embodiment of a slider;
FIG. 4 is a schematic view of another embodiment of a slider;
FIG. 5 is a schematic view of a further embodiment of a slider;
FIG. 6 is a schematic view of a clamping mechanism;
FIG. 7 is a schematic view of another configuration of the clamping means of the clamping mechanism;
FIG. 8 is a schematic perspective view of the clamping mechanism;
fig. 9 is a schematic front view of one configuration of the clamping mechanism.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The clamping mechanism disclosed by the invention, as shown in fig. 1 to 9, comprises a clamping rope or a pipe and the like, and is characterized by comprising a plurality of sliding blocks 300, sliding block pins 400, a sliding base plate 100 and a sliding groove plate 200, wherein the sliding base plate 100 and the sliding groove plate 200 are annular, are coaxially arranged and are mutually rotatably fixed; the sliding chassis 100 is provided with sliding grooves 110 matched with the sliding blocks 300 on the annular surface uniformly, and the sliding grooves 110 are radially formed in the sliding chassis 100; a slider 300 movable along the sliding groove 110 to approach or separate from the center of the sliding chassis 100; a slider pin 400 provided corresponding to the slider 300 and capable of driving the slider 300 to reciprocate along the sliding groove 110; the sliding groove plate 200 is uniformly provided with sliding pin grooves 210 with the same number as the sliding pins 400 on the ring surface, and all the sliding pins 400 are arranged in the corresponding sliding pin grooves 210 and move in the sliding pin grooves 210; and can be synchronously moved toward or away from the center of the chute tray 200.
It should be noted that, the slider 300 and the slider pin 400 may be integrally formed, or may be separately formed and then assembled. There are various ways of fitting after the split molding, and several examples will be described below.
The sliding block 300 is provided with a sliding pin hole 310, the sliding pin hole 310 is matched with the sliding block pin 400, and the axis of the sliding pin hole is parallel to the central axis of the sliding chassis 100; one end of the slider pin 400 is connected to the slider pin hole 310, and the other end is inserted into the slider pin hole 310.
The sliding block 300 is in a U shape, two parallel surfaces of the sliding block 300 are provided with sliding pin holes 310 through which the sliding block pins 400 can simultaneously pass, and the groove part of the sliding block 300 is clamped on the annular surface of the sliding groove disc 200 outwards from the inner ring of the sliding groove disc 200.
The sliding chassis 100 includes a first sliding chassis 100 and a second sliding chassis 100, where the first sliding chassis 100 and the second sliding chassis 100 are separated at two sides of the chute tray 200, and form a clamp for the chute tray 200; the sliding grooves 110 are respectively arranged on the annular surfaces of the first sliding chassis 100 and the second sliding chassis 100 facing the chute plate 200.
The end of the sliding block 300, which points to the central axis of the chute plate 200, is provided with a bearing 333 or a roller 332, and the axis of the bearing 333 or the roller 332 is parallel to the axis of the clamped rope or tube and can be rubbed and rotated by the clamped rope or tube.
The end part of the sliding block 300, which points to the central axis of the chute disc 200, is inwards recessed to form a cavity 320, a ball 331 is arranged in the cavity 320, most of the ball 331 is clamped in the cavity 320, and the other part of the ball 331 is exposed out of the cavity 320 and can be rubbed and rolled by a clamped rope or tube.
The ring surface of the chute plate 200 is provided with a through arc-shaped groove 230, and the circle where the arc-shaped groove 230 is positioned is coaxial with the chute plate 200; the sliding chassis 100 is provided with a fixing hole, and the fixing hole is provided with internal threads; the pressing handle 530 further comprises a tightening shaft 531 and a pressing cap 532 fixed at one end of the tightening shaft 531, external threads matched with the internal threads of the fixing hole are arranged on the outer portion of the tightening shaft 531, and one end of the tightening shaft 531, which is not provided with the pressing cap 532, penetrates through the arc-shaped groove 230 and is screwed into the fixing hole.
The sliding groove 110 is internally provided with a clamping spring 540, one end of the clamping spring 540 abuts against the sliding block 300, the other end abuts against the inner wall of the sliding groove 110, and the clamping spring 540 can abut against the sliding block 300 to approach the axis of the sliding chassis 100 in the sliding groove 110.
One surface of the sliding chassis 100 facing the chute disc 200 is provided with a plurality of index holes inwards along the axial direction thereof, all the index holes are positioned on the same circle, and the center of the circle is positioned on the central axis of the chute disc 200; the ring surface of the chute disc 200 is provided with a through bolt hole, and the bolt hole can be communicated with the indexing hole in the process of mutually axially rotating the chute disc 200 and the sliding chassis 100; the indexing bolt is also included, and when the bolt hole is communicated with the indexing hole, the bolt can be inserted.
The edge of the chute tray 200 is provided with a ratchet 220, the edge of the sliding chassis 100 is provided with a poking piece 510 matched with the ratchet 220, and when the end part of the poking piece 510 abuts against the ratchet 220, the chute tray 200 and the sliding chassis 100 can be prevented from rotating relatively.
The pulling piece 510 is arranged at the edge of the sliding chassis 100 through a pulling piece shaft, and the central axis of the pulling piece shaft is parallel to the central axis of the sliding chassis 100; the pulling piece shaft is inserted into the middle of the pulling piece 510, one end of the pulling piece 510 can prop against the ratchet 220, and a return spring 520 is arranged between the other end of the pulling piece and the outer wall of the sliding chassis 100; when the return spring 520 is compressed, the paddle 510 can move away from the ratchet 220.
The cable insulation layer cutting device of the clamping mechanism is characterized by further comprising a transmission mechanism 900 for driving the sliding chassis 100 to rotate around a shaft; in addition, a cutting tool 800 is further included, and the cutting edge of the cutting tool 800 can abut against the clamped rope or tube, and the clamped rope or tube is circular cut along with the rotation of the chute plate 200.
Specifically, the transmission mechanism comprises a driving motor, a first transmission belt pulley and a second transmission belt pulley; the axes of the first driving belt pulley and the second driving belt pulley are parallel to each other, and the first driving belt pulley is driven by the driving motor to rotate; the second driving pulley is coaxially fixed on the sliding chassis 100; the first driving belt wheel and the second driving belt wheel realize driving through a driving belt. It should be noted that, the driving mechanism 900 may be provided in various specific manners, and may be capable of driving the sliding chassis 100 and the chute tray 200 to rotate.
In addition, the cutting tool 800 may be provided in various manners, and the cutting tool 800 may be provided to perform circular cutting of the object to be clamped in accordance with the rotation of the slide chassis 100 and/or the chute tray 200. For example, the cutting tool 800 may be provided on an annular surface of the chute tray 200, and the cutting edge of the cutting tool may abut against the clamped rope or tube, and the clamping mechanism may rotate integrally to achieve circular cutting of the clamped rope or tube.
The cutting device does not need to manually cut the cable insulating layer, can work in a lasting and labor-saving manner, has higher efficiency than manual cutting of the cable insulating layer, greatly reduces the requirements on constructors, and achieves an ideal stripping effect of the cable insulating layer.
The above description is only of a preferred form of the invention, it being understood that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the inventive concept, which shall be regarded as being within the scope of the invention.