CN102522675A - Cam cutter mechanism of trimming and peeling machine - Google Patents

Abstract

The invention discloses a cam cutter mechanism of a wire shearing and peeling machine, which is characterized in that it includes a driving mechanism and a guiding mechanism arranged on a frame, the power output end of the driving mechanism is connected with a transmission mechanism, and the transmission mechanism is respectively connected with There are an upper cam and a lower cam, and the upper cam and the lower cam are respectively pivotally connected with the machine frame, the upper knife rest and the lower knife rest are respectively connected to the guide mechanism, and the upper knife rest and the lower knife rest are provided with a An elastic support mechanism that makes the upper knife rest and the rim of the upper cam press and contact the lower knife rest and the rim of the lower cam, the upper knife rest is provided with an upper cutter group, and the lower knife rest is on the A lower cutter group corresponding to the upper cutter group is provided.

Description

A cam cutter mechanism of a wire cutting and stripping machine

technical field

The invention relates to a wire cutting and peeling machine, in particular to a cam cutter mechanism of the wire cutting and peeling machine.

Background technique

Usually, the wire needs to be stripped of the insulation at the end to connect with other conductors. The wire stripping machine is a special wire stripping machine. The ordinary wire stripping uses a motor to drive the gear and rack to mesh, and the gear and rack drive the cutter to move up and down. In the above structure, during the up and down movement of the cutter, the motor needs to perform forward and reverse rotation. During the forward and reverse process, the motor needs to overcome the inertial motion, so the efficiency is low, and the frequent reciprocating motion will cause great wear to the motor; when the traditional rack structure is running The noise is high, the processing difficulty is greater, and the cost is high.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a cam cutter mechanism of a wire shearing and peeling machine with high efficiency, long life, low noise, low processing difficulty and low cost.

The technical solution adopted by the present invention to solve its technical problems is:

A cam cutter mechanism of a wire cutting and peeling machine, characterized in that: it includes a drive mechanism and a guide mechanism arranged on the frame, the power output end of the drive mechanism is connected with a transmission mechanism, and the transmission mechanism is respectively connected with an upper cam and a guide mechanism. The lower cam, and the upper cam and the lower cam are pivotally connected with the frame respectively, and the upper knife rest and the lower knife rest are respectively connected on the described guide mechanism, and there is a device between the upper knife rest and the lower knife rest that can make the upper knife rest The elastic supporting mechanism that contacts the rim of the upper cam and the lower knife rest and the rim of the lower cam. The upper knife rest is provided with an upper cutting knife group, and the lower knife rest is provided with The cutter group corresponds to the matching lower cutter group.

The transmission mechanism includes a driving pulley, a first driven pulley and a second driven pulley, and a timing belt is wound around the driving pulley, the first driven pulley and the second driven pulley, and the The power output end of the drive mechanism is connected to the power input end of the driving pulley, the upper cam is coaxially connected to the first driven pulley through the first transmission shaft, and the lower cam is connected to the second driven pulley through the second The drive shaft is connected coaxially.

The frame is provided with a tensioning wheel, and the synchronous belt is tensioned through the tensioning wheel.

The guiding mechanism includes a linear guide rail, a first slide block and a second slide block matched with the linear guide rail, the upper knife rest is installed on the first slide block, and the lower knife rest is installed on the second slide block.

The drive mechanism adopts a stepping motor.

The elastic support mechanism includes a compression spring, and the two ends of the compression spring are respectively connected to the upper knife rest and the lower knife rest.

The upper cutting knife group includes an upper cutting knife, and the two sides of the upper cutting knife are respectively provided with a first upper stripping knife and a second upper stripping knife; the lower cutting knife group includes a lower cutting knife, and the two sides of the lower cutting knife A first lower wire stripping knife and a second lower wire stripping knife are respectively provided.

The upper tool rest is provided with an upper transmission bearing, and the rim of the upper cam is squeezed with the upper transmission bearing; the lower tool rest is provided with a lower transmission bearing, and the rim of the lower cam is squeezed with the lower transmission bearing. pressure.

The beneficial effect of the present invention is: the present invention comprises the driving mechanism and the guiding mechanism that are arranged on the frame, the power output end of the driving mechanism is connected with the transmission mechanism, the upper cam and the lower cam are respectively connected on the transmission mechanism, and the The upper cam and the lower cam are respectively pivotally connected to the frame, and the guide mechanism is respectively connected with an upper knife rest capable of moving under pressure through the rotation of the upper cam and a lower knife rest capable of moving under pressure through the rotation of the lower cam. The upper knife frame is provided with an upper cutter group, and the lower knife frame is provided with a lower cutter group corresponding to the upper cutter group. The advantages of this structure are as follows:

1. This structure adopts double cam synchronous action, so that the upper and lower cutter groups move symmetrically around the wire. No matter when it is opened or closed, the distance between the wire and the upper and lower cutters is always the same, which is convenient for processing and ensures the stability of work;

2. The motor with this structure only needs to rotate one circle to complete a working cycle, which is more efficient than the traditional rack structure motor in forward rotation (closing) and reverse rotation (opening). And the motor does not need reciprocating motion, and the motor has a longer service life;

3. This mechanism adopts synchronous belt drive and cam drive, which is less difficult to process and lower in cost than the traditional rack structure. Because of the belt drive, the noise is much smaller than the traditional rack structure.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further described:

Fig. 1 is the back view of the present invention;

Fig. 2 is the front view of the cam of the present invention at the source point;

Fig. 3 is the front view of the state when the cam of the present invention is in the state when the cutting knife cuts off the electric wire;

Fig. 4 is the front view of the state when the cam of the present invention is in the state when the wire stripper strips the wire sheath;

Fig. 5 is the front view of the cam of the present invention in the state when stripping is completed;

Fig. 6 is the front view of the upper and lower cutter sets of the present invention in an open state;

Fig. 7 is the front view of upper and lower cutting blades of the present invention cutting off electric wires;

Fig. 8 is the front view of the state of wire stripping knife of the present invention;

Fig. 9 is a front view of the upper and lower cutter sets of the present invention in a fully closed state.

Detailed ways

Referring to Fig. 1 to Fig. 9, the present invention discloses a cam cutter mechanism of a wire shearing and peeling machine, including a driving mechanism (not shown in the figure) and a guiding mechanism arranged on the frame 3, the power output end of the driving mechanism Connected with a transmission mechanism, the transmission mechanism is respectively connected with the upper cam 1 and the lower cam 2, and the upper cam 1 and the lower cam 2 are respectively pivotally connected with the frame 3, and the guide mechanism is respectively connected with the upper knife rest 4 and the lower knife rest 5, and between the upper knife rest 4 and the lower knife rest 5, there is a rim extrusion contact between the upper knife rest 4 and the upper cam 1 and the lower knife rest 5 and the lower cam 2. The elastic supporting mechanism 6, the upper knife rest 4 is provided with an upper cutter set 7, and the lower knife rest 5 is provided with a lower cutter set 8 correspondingly matched with the upper cutter set 7.

As shown in the figure, the transmission mechanism includes a driving pulley 9, a first driven pulley 10 and a second driven pulley 11, and the driving pulley 9, the first driven pulley 10 and the second driven pulley 11 A synchronous belt 12 is wound on the top, the power output end of the driving mechanism is connected with the power input end of the driving pulley 9, and the upper cam 1 is coaxially connected with the first driven pulley 10 through the first transmission shaft. The lower cam 2 is coaxially connected with the second driven pulley 11 through the second transmission shaft. Further, a tensioning wheel is provided on the frame 3, and the timing belt 12 is tensioned by the tensioning wheel.

As shown in the figure, the guiding mechanism includes a linear guide rail 13, a first slider 14 and a second slider 15 matched with the linear guide rail 13, the upper knife rest 4 is installed on the first slider 14, and the lower knife rest 4 is mounted on the first slider 14. The frame 5 is installed on the second slide block 15. The above-mentioned structure is preferred in this embodiment and is not a limitation. The above-mentioned structure can also use the cooperation of the linear bearing and the circular guide rail to guide the lifting of the upper tool rest 4 and the lower tool rest 5. , of course other ways can also be used to achieve the effect of this structure. Further, in order to avoid the large friction between the cam rim and the knife rest when the cam rotates, the upper transmission bearing 16 is arranged on the upper knife rest 4, and the wheel rim of the upper cam 1 is squeezed with the upper transmission bearing 16; The lower transmission bearing, the wheel rim of the lower cam 2 and the lower transmission bearing extrude 17, so that the sliding friction between the cam wheel rim and the knife rest can be converted into rolling friction, which reduces wear and prolongs the service life of the parts.

In this specific example, the driving mechanism adopts a high-precision stepping motor, and the high-precision stepping motor is used to control the rotation of two cams through the synchronous belt 12. The cams push the transmission bearings to complete the closing and opening of the knife holder under the double force of the spring. And precisely control the closing and opening position to complete the cutting and peeling of the wire.

As shown in the figure, the elastic support mechanism 6 includes a compression spring, and the two ends of the compression spring are connected to the upper knife rest 4 and the lower knife rest 5 respectively, and the upper cutter group 7 and the lower cutter group 8 can be restored by the elastic force of the compressed spring. in situ.

As shown in the figure, the upper cutting knife group 7 includes an upper cutting knife 18, and the two sides of the upper cutting knife 18 are respectively provided with a first upper stripping knife 19 and a second upper stripping knife 20; The cutting knife 21 and the two sides of the lower cutting knife 21 are respectively provided with a first lower wire stripping knife 22 and a second lower wire stripping knife 23 .

The working principle of the present invention is as follows: when the structure is in the standby state, the transmission bearing is in contact with the most concave part of the cam, and the upper cutter group 7 and the lower cutter group 8 are respectively located at the highest position and the lowest position, so as to facilitate the feeding of the electric wire; When the specified length is reached, the motor rotates, and the transmission mechanism drives the upper cam 1 and the lower cam 2 to rotate. When the upper cam 1 and the lower cam 2 rotate, they respectively squeeze the upper transmission bearing 16 and the lower transmission bearing, thereby overcoming the elastic force of the compression spring to push the upper knife The frame 4 and the lower knife frame 5 drive the upper cutter group 7 and the lower cutter group 8 to close together, and the wires are cut by the interlacing of the upper cutting knife 18 and the lower cutting knife 21; after the wires are cut, the wire feeding mechanism pulls the two sections of wires respectively To the desired position for wire stripping, the motor continues to drive the upper cam 1 and the lower cam 2 to rotate, and the upper cutter group 7 and the lower cutter group 8 continue to close together until the first upper wire stripper 19 and the first lower wire stripper 22, The second upper stripping knife 20 cooperates with the second lower stripping knife 23 to cut off two sections of wire rubber respectively, and then the wire pulling mechanism pulls out the wire; The most convex part of the machine is in contact, the knife holder is completely closed, and the motor continues to rotate until it returns to the standby state, thus completing a cycle.

The above are only illustrations and descriptions of some preferred embodiments of the present invention, but the implementation of the present invention is not limited by the above embodiments, as long as they achieve the technical effects of the present invention by basically the same means, they all belong to the present invention scope of protection.

Claims (8)

1. trimming peeling machine cam cutter mechanism; It is characterized in that: comprise the driving mechanism and the guide that are arranged on the frame; The clutch end of this driving mechanism is connected with transmission mechanism, be connected with overhead cam on this transmission mechanism respectively and reach cam down, and said overhead cam reaches down, and cam articulates with frame respectively; Be connected with upper tool post and lower slide on the said guide respectively; And be provided with between upper tool post and lower slide and can make the elastic supporting mechanism that upper tool post contacts with the wheel rim extruding of overhead cam and lower slide contacts with the wheel rim extruding of following cam, said upper tool post is provided with the upper cutter group, and said lower slide is provided with the lower cutter group with upper cutter group corresponding matching.

2. a kind of trimming peeling machine cam cutter mechanism according to claim 1; It is characterized in that: said transmission mechanism comprises driving pulley, first driven pulley and second driven pulley; Be arranged with synchronous belt on this driving pulley, first driven pulley and second driven pulley; The clutch end of said driving mechanism is connected with the power intake of driving pulley; Said overhead cam is connected through first power transmission shaft is coaxial with first driven pulley, and said cam down is connected through second power transmission shaft is coaxial with second driven pulley.

3. a kind of trimming peeling machine cam cutter mechanism according to claim 2, it is characterized in that: said frame is provided with regulating wheel, and said synchronous belt is through the regulating wheel tensioning.

4. a kind of trimming peeling machine cam cutter mechanism according to claim 1; It is characterized in that: said guide comprises line slideway, first slide block that cooperates with this line slideway and second slide block; Said upper tool post is installed on first slide block, and said lower slide is installed on second slide block.

5. a kind of trimming peeling machine cam cutter mechanism according to claim 1, it is characterized in that: said driving mechanism has adopted stepping motor.

6. a kind of trimming peeling machine cam cutter mechanism according to claim 1, it is characterized in that: said elastic supporting mechanism comprises the compression spring, the two ends of this compression spring are connected with upper tool post and lower slide respectively.

7. a kind of trimming peeling machine cam cutter mechanism according to claim 1, it is characterized in that: said upper cutter group comprises cutoff tool, the both sides of last cutoff tool are respectively equipped with on first wire stripping cutter on the wire stripping cutter and second; Said lower cutter group comprises cutoff tool down, and the both sides of following cutoff tool are respectively equipped with first time wire stripping cutter and second time wire stripping cutter.

8. a kind of trimming peeling machine cam cutter mechanism according to claim 1, it is characterized in that: said upper tool post is provided with drive bearing, the wheel rim of said overhead cam and the extruding of last drive bearing; Said lower slide is provided with the underdrive bearing, the wheel rim of said cam down and the extruding of underdrive bearing.

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