KR100834882B1 - Automatic cable cut machine - Google Patents

Abstract

An apparatus for automatically cutting a cable is provided to effectively perform tube cutting work without generating dust, noise, and harmful gas by automatically feeding and cutting a cable material, and to allow a large amount of tubes to be cut by a precise length and enable the exclusion of post-treatment due to automation, thus improving the accuracy of a product and productivity. An apparatus for automatically cutting a cable includes a material feeding unit(12) and a material cutting unit(16). The material feeding unit functions to feed a continuously supplied material by a predetermined pitch in the direction of the X-axis, using an up-down cylinder(10) for holding the material and an LM unit(11) for feeding the material. The material cutting unit functions to cut the material using a pair of cutter blades which are operated by a cylinder(13b) and are provided on opposite sides of the material, and clamping block by crossing the cutter blades. The cable cutting apparatus further includes a material discharge unit(18) which holds and discharges the cut part of the material using a guide pin(17) which is operated by a cylinder and is inserted into the material during the cutting operation.

Description

Cable Cut Machine {Automatic cable cut machine}

1 is a front view showing a cable cutting device according to an embodiment of the present invention

Figure 2 is a plan view showing a cable cutting device according to an embodiment of the present invention

Figure 3 is a side view showing a cable cutting device according to an embodiment of the present invention

Figure 4 is a side view showing the operating state of the cable supply unit in the cable cutting device according to an embodiment of the present invention

Figure 5 is a side view showing the operating state of the cable cutting unit in the cable cutting device according to an embodiment of the present invention

<Description of the symbols for the main parts of the drawings>

10: up-down cylinder 11: LM unit

12: material supply part 13a, 13b, 13c, 13d, 13e, 13f: cylinder

14a, 14b: cutter blades 15a, 15b: clamping block

16: cutting material 17: guide pin

18: material discharge portion 19: stopper

20: material guide 21: holder block

22: inclined surface 23a, 23b: press block

24: roller 25a, 25b: clamping plate

26a, 26b, 26c: base 27a, 27b, 27c: post

28: clamping rod

The present invention relates to a device for cutting a cable made of a metal material, such as a vehicle tuner cable, and more particularly, by introducing an automation concept such as a feed and pitch feed method of a cable, a press cutting method using a cutter blade, and the like. By implementing a system for automatically cutting, the present invention relates to a cable cutting device capable of improving workability and productivity in connection with a cable cutting operation.

In general, a vehicle tuner cable (Tuner cable) is a hydraulic power steering part of the vehicle is an important part related to the safety of the driver and passengers.

Currently, in order to cut a car tuner cable to a desired standard, a second polishing process is performed. During the polishing process, the work evasion phenomenon occurs due to non-environmental working conditions such as dust, noise, and harmful gas. Due to the high defect rate, the process is performed economically.

In particular, as it is a cause of export regulation, it is urgent to develop new process technology that can replace the environment and increase the precision of products.

Looking at the manufacturing process of the tuner cable that is currently mounted as an automotive component has a number of problems in the manufacturing process as follows.

① Dust by WA cutting stone and circular saw blade

The tuner cable is a double-strength, hollow double-bonded coil for automotive parts, one wire of stranded S20C and the other wire of spring steel SWRH62A.

The WA cutting stone, a tool for cutting the tuner cable, is made by inserting quartz stone (glass fiber) powder in the middle layer of the grindstone. When cutting the tuner cable, a lot of dust, harmful gas and noise are generated, Since it is necessary to wear, productivity is falling and job avoidance is occurring.

In addition, in the foreign countries, the regulation is strict, and thus, if manufactured by the conventional cutting method, the powder and asbestos remain in the tuner cable, which causes the problem of damaging the power steering pump, and thus cannot export.

The amount of dust by cutting stones and saw blades is about 5kg when cutting 10,000 pieces, and the environmental treatment cost for treating them is not small.

In addition, the daily consumption of cut stone due to abrasion is 5 sheets per unit, and the economic cost of manufacturing the product can not be ignored.

② Generates noise and harmful gas in multi-step process

In the current tuner cable manufacturing process, noise is generated when the cable is cut with abrasive stones or saw blades, and the product is manufactured in a multi-step process such as polishing, assembly, and post-treatment, and thus, it is difficult to install the barrier film due to the linking process. The entire workplace is noisy (100 dB).

Therefore, the multi-stage process can only be performed in a narrow work space, and it is easy to cause hearing loss and mental disorder due to noise generated at this time.

In addition, harmful gases and odors are generated in each process, which may cause industrial accidents.

The harmful gases and odors generated at this time are SO ₂ , MnO, NH (S), propene acetylene, and the like.

③ Second post-treatment is required after cutting

Parts of the hydraulic tube for automobiles are required to be robust and precise, but the current cutting method is a post-processing operation is necessary because sharp chips are generated at the junction of the stranded and steel wires.

Therefore, since the inner diameter does not become a constant circle, secondary post-process polishing is required to remove beads and increase precision.

Therefore, the present invention has been devised in view of the above, by implementing a new method of cutting automatically using the cutter blade of the mold press machine with the automatic supply of cable material, without problems such as dust, noise, harmful gas, etc. The working environment can be improved, such as the effective cutting of the tube, and the automation concept can cut a large number of tubes to the exact size (length) and eliminate the second post-treatment. It is an object of the present invention to provide a cable cutting device capable of improving accuracy and improving productivity.

Cable cutting device according to an embodiment of the present invention for achieving the above object by using a down-down cylinder for the press of the material and the LM unit for the transfer of the material bite the material supplied in a continuous form, X by a predetermined pitch Material cutting part for cutting material by cutter blade crossing method using a material supply part for feeding in the axial direction and a pair of cutter blades and clamping blocks which are operated by press cylinders and face each other with the material sandwiched between them. Characterized in that it comprises a.

In addition, when the cutting material is operated by the discharge cylinder is characterized in that it further comprises a material discharge portion to be pulled out at the same time while holding the part cut out of the material using a guide pin inserted into the material inner diameter.

In addition, the material supply unit is characterized in that it comprises a stopper which is installed in the front end of the LM unit and controls the cutting length of the material by intermittent the moving distance of the assembly to which the up-down cylinder belongs.

In addition, the front end of the material supply portion is characterized in that the material guide portion for guiding the material accurately into the material supply portion while guiding the progress trajectory of the material using a plurality of roller combinations.

In addition, the section between the material supply portion and the material cutting portion is characterized in that the holder block is operated by the cylinder to hold the position of the pitch-transferred material is provided.

In addition, the material cutting unit is coupled to each of the rod side and the cutter blade side of the cylinder, including a manner of operating the cutter blade using two press blocks interlocked with each other while being disposed 90 ° in the form of one side through the inclined surface of each other. It is characterized by.

In addition, the clamping block of the cutting material is characterized in that the combination consisting of a fixed clamping block for supporting one circumferential surface of the material and a movable clamping block for pressing the opposite circumferential surface of the material while moving by the operation of the cylinder.

One of the features of the cable cutting device provided by the present invention is that it is provided with a custom press mold that matches the diameter of the desired product.

That is, since the cutting material is not a single material but a double-bonded material and has a hollow structure of the spiral, the shape of the fracture surface, the processing precision, the processing speed, etc. are determined according to the mold. It is characterized by having a mold.

In addition, the fracture surface is generated after the cutting process due to the nature of the material and the process, it is necessary to minimize the fracture surface because the difficulty and processing time of the post-process is determined according to the characteristics of the fracture surface.

To this end, it includes an accessory for mounting a complementary support on the inner diameter surface to optimize the jig, mold and press strength and to minimize and refine the fracture surface.

In addition, for the automation of the production line is equipped with a transport means for winding the tuner cable wound around the wheel and supply to the cutting position.

Since the automatic control from the transfer of material to cutting and product transfer, the mold press cutting device is designed to optimize the material supply part, the material cutting part, the hydraulic means, the conveying means, and the control means.

When using cemented carbide or small alloy as the material of cutter blade used to cut the material, it is easily broken due to brittleness. It is desirable to regrind so that the cutter blade can be replaced at an appropriate time.

Hereinafter, a cable cutting device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view showing a cable cutting device according to an embodiment of the present invention, Figure 2 is a plan view showing a cable cutting device according to an embodiment of the present invention, Figure 3 is a cable according to an embodiment of the present invention It is a side view which shows a cutting device.

As shown in Figs. 1 to 3, the cable cutting device is a material cutting unit 16 for cutting the material using the material supply unit 12 for transferring the material at a constant pitch, and both of the cutter blades operated by hydraulic pressure. And a material discharge part 18 for removing the cut product from the cutting area.

The material supply unit 12 is a part capable of controlling the overall length of the material by pressing and holding one side of the product with a cylinder, and then transferring the material to a predetermined position using the LM unit in this state.

To this end, an LM unit 11 arranged in the X-axis direction is installed on the main body of the apparatus for conveying materials, and a base 26a guided by guide bars at both ends is installed on the slider of the LM unit 11. In operation of the LM unit, the base can reciprocate along the X axis.

The base 26a is provided with an up-down cylinder 10 supported by a post 27a in a vertical position, and a clamping plate 25a capable of pressing the upper circumferential surface of the material on the rod of the up-down cylinder 10. At the same time, a clamping plate 25b capable of supporting the lower circumferential surface of the material is installed on the base 26a.

In this case, the clamping plates 25a and 25b are formed with semi-circular grooves parallel to the material longitudinal direction, so that the material can be stably held in the state where the material is accommodated inside the grooves.

Accordingly, as shown in FIG. 4, when the clamping plate 25a comes down by the operation of the up-down cylinder 10, the material is held by the upper and lower clamping plates 25a and 25b. In the state where the plates 25a and 25b hold the material, the material is conveyed to a predetermined position in the X-axis direction by the operation of the LM unit 11 so that the material can be conveyed one pitch by a predetermined length.

After the LM unit 11 is transported, the LM unit 11 is returned in a state where the product is released by the upward operation of the up-down cylinder 10, thereby completing one step for material supply.

In addition, the present invention has the advantage that the material can be cut into various desired length by providing a means that can control the overall length of the material by adjusting the stroke of the LM unit.

To this end, a stopper 19 is provided in the front end section of the LM unit 11 to control the movement distance of the entire base 26a including the assembly to which the up-down cylinder 10 belongs, for example, a clamping plate.

At this time, the stopper 19 is provided on the guide bar of the LM unit 11 to control the movement distance of the base 26a (for example, the point where the LM unit is returned), and the position at which the stopper 19 is installed. Since it can be moved back and forth in the phase, the feed pitch of the material can be arbitrarily set as desired.

Here, the front and rear stroke limit points of the LM unit 11 is preferably provided with a shock absorbing means using a spring or the like so as to be able to eliminate the influence of the impact when the stroke of the LM unit is completed.

In addition, a material guide part 20 is installed at the material entry part of the material supply part 12 so that the material can be accurately guided into the material supply part 12.

For example, two or more rollers 24 are installed on the bracket at predetermined heights and distances, and the material advances in a form that spans up and down one by one on the rollers thus installed. With the proper tension and can be correctly proceeded to the material supply part 12 side.

In addition, a holder block 21 operated by a cylinder 13e is provided in a section between the material supply part 12 and the material cutting part 16 which will be described later, that is, a rear end section of the material supply part 12, so that the pitch is determined by a predetermined length. The exact position of the transferred material can be maintained.

For example, at the time of returning the LM unit 11 by holding the holder block 21 so as not to move the raw material by the vertical operation of the cylinder 13e immediately after the raw material is fed one pitch by the raw material supply part 12. The position can be maintained accurately without the material being attached.

At this time, the holder block can be configured in the same way as the clamping plate having a material supply unit, but there is a difference in only holding the material in a fixed position without moving.

As shown in Figs. 5A to 5C, the material cutting part 16 is formed by cutting a material by hydraulically operating a pair of cutter blades provided in a customized press mold.

To this end, two posts 27b and 27c in the form of facing each other are installed in the base 26b on the main body of the apparatus, and the hydraulic pressure for operating the cutter blades 14a and 14b is installed in the upper part of the post. Each cylinder 13a, 13b which provides a vertically installed rod with the rod downward, and one of the one post having a stroke in the Y-axis direction to move the movable clamping block (15b) behind one post The cylinder 13c is horizontally installed.

The cutter blades 14a and 14b are positioned to face each other along the Y-axis direction with materials interposed therebetween, and are supported by a structure that is integrally coupled to the front end of the press block 23b to be described later. The cutter blades 14a and 14b are capable of cutting the material while moving in the direction in which the blade ends are exactly in contact with each other by the block receiving the slide guide in the guide structure during operation.

One press block 23a is mounted on the rods of the cylinders 13a and 13b to operate the cutter blades 14a and 14b, and the other one having the cutter blades 14a and 14b. Press blocks 23b are combined in a form in which the press blocks 23b are in contact with the press blocks 23a.

For example, the cylinder-side press block 23a and the cutter blade-side cylinder block 23b are disposed at 90 ° in a back-to-side fashion through each of the inclined surfaces 22 at an angle of about 45 °. Through the interlocking motion between the blocks, the cutter blades 14a and 14b move forward to cut the material.

That is, when the cylinders 13a and 13b operate, the press block 23a attached to the rod descends downward, and the press block 23b in contact with the inclined surface 22 is in the Y-axis direction. As the cutter blades 14a and 14b of the tip portion are pushed toward the material placed in the center at the same time, the cutting material can be cut by the cutter blade at this time.

After cutting the raw material, the cutter blades 14a and 14b can be returned to their initial positions by the return springs (not shown) inside together with the return of the cylinders 13a and 13b.

In addition, two clamping blocks 15a and 15b are provided as a means for preventing the flow of the material when cutting the material by the cutter blades 14a and 14b.

The clamping blocks 15a and 15b are disposed to face each other in the Y-axis direction with the gap between the cutter blades 14a and 14b to allow the cutter blades 14a and 14b to pass through the middle of the length. It holds the circumference.

Thus, since the cutter blades 14a and 14b cut the portion where the clamping blocks 15a and 15b hold the material, a more precise and clean cutting surface can be obtained.

At this time, a groove of semi-circular cross section is formed in the material contact surface of the clamping blocks 15a and 15b so that when the two blocks are combined for clamping, the material can be firmly fixed in the form of being seated in the groove.

In addition, one of the two clamping blocks 15a, 15b is a fixed block that supports one circumferential surface of the material, and the other is a movable block that presses the opposite circumferential surface of the material.

In this case, the movable clamping block 15b is slidable on the base 26b by the side-by-side clamping rods 28 coupled to the rods of the cylinder 13c installed on the rear side of the post 27b. Thus, when the cylinder 13c is operated, the movable clamping block 15b with the clamping rod 28 moves in the Y-axis direction, that is, the fixed clamping block 15a is moved to the side therebetween. You can grab the material.

In addition, the present invention provides a material discharge portion 18 as a means for preventing the deformation of the cutting portion, etc. during the material cutting operation and at the same time to allow the material cut after the material cutting to smoothly exit the cutting work area.

The material discharging unit 18 supports the material by using a guide pin 17 having a diameter smaller than the inner diameter of the material, and can discharge the material by pulling the material slightly.

To this end, a base 26c movable in the X-axis direction while being disposed in the rear of the raw material cutting part 16 is provided, and a cylinder 13d positioned on the same axis as the raw material is installed on the base 26c. At this time, the rod of the cylinder 13d is mounted with a guide pin 17 inserted into the inner diameter of the material.

Here, the base 26c may be installed in a structure supported on the frame structure, and may be shaped to be driven by a lower actuator, for example, a cylinder 13f.

Accordingly, if the entire base 26c including the cylinder 13d and the guide pin 17 is moved in the X-axis direction immediately before the material cutting operation, the end of the guide pin 17 at this time is positioned at the end of the material. By continually operating the cylinder 13d, the guide pin 17 enters the inner diameter of the material to hold the material of the portion to be cut, thereby ensuring a stable support state when cutting the material.

In the process of returning the guide pin 17 and the base 26c after cutting the material, the material may be discharged in the form of coming out slightly by frictional interference with the guide pin 17 and falling downward.

On the other hand, the end portion of the material, for example, to effectively catch that the material portion to be cut out before the insertion of the guide pin 17 is struck down, so that the guide pin 17 can accurately enter the inner diameter of the material For example, it is preferable to have auxiliary supporting means capable of supporting one end of the portion of the workpiece extending one pitch and extending out of the cutting region.

Therefore, looking at the state of use of the cable cutting device according to an embodiment of the present invention configured as described above are as follows.

5a to 5c is a side view showing the operating state of the material cutting unit in the cable cutting device according to an embodiment of the present invention.

5A to 5C, the up-down cylinder 10 of the material supply unit 12 and the preparation process of extending the arrangement of the material to the material guide unit 20 and the material supply unit 12 by the operator are finished. When the material 100 moves one pitch by a predetermined length by the operation of the LM unit 11, the cutting operation is performed by the cooperative operation of the actuator means and the operating elements belonging to the material cutting part 16 from this time. At this time, before the operation of the LM unit 11, the guide pin 17 enters the inner diameter of the material by the operation of the material discharge portion 18 to ensure the support state of the material.

For example, first, the movable clamping block 15b is advanced in the Y-axis direction by the operation of the cylinder 13c to push the raw material toward the fixed clamping block 15a.

At this time, the material is sandwiched between the clamping blocks 15a and 15b to be fixed.

Next, the interlocking between the press blocks 23a and 23b is achieved by simultaneously operating the two cylinders 13a and 13b, and the cutter blades 14a and 14b in each press block 23b are The material is cut while entering from both sides of the material.

Next, after the cutting of the material, the cutter blades 14a and 14b return and the clamping blocks 15a and 15b are released, and at the same time the guide pin 17 is removed from the material, and the cut material is then lowered. The discharge completes one step of the cutting operation.

As this process is repeatedly performed, the material cutting operation is performed as a continuous automated process.

As described above, the cable cutting method provided by the present invention may be evaluated as an eco-friendly technology, which is difficult to find even in developed countries, and may be appropriate to enhance international competitiveness.

In the present invention, two special cutter blades are installed and cut, and the cutter blades are used by heat treatment.

It not only cuts metal with double strength at the same time, it can be used for a long time, and the cutter blade can be replaced easily in a short time.

In addition, since the cutting process is performed using a special cutter blade, dust can be absolutely eliminated around the workplace, and noise and harmful gas can be reduced.

In addition, the press cutting device can be equipped with a control device to control the pressure, speed, length, cutting discharge and the like, it is possible to perform an efficient process.

In the case of the cable cutting device provided by the present invention can be produced about 3,500 ~ 4,000 pieces per 8 hours per day work, and the advantage of the cable cutting device as well as improving the product defect rate that can occur during work, dust This prevents failure of related devices such as pumps and gears among the steering devices of the vehicle which are expected when they are absorbed by the product.

Therefore, the development of the tuner cable cutting device can be further recognized in that it is indispensable in order to adequately cope with the increasing orders at home and abroad.

In addition, the global automotive parts material industry needs to develop parts that can be applied to all models of the world by securing small and medium-sized technology. Even if the amount of foreign exports exceeds 50% compared to the domestic market, and overseas production is being pushed to overcome export barriers, the boundaries between nations are being broken down.

Moreover, through the current Free Trade Agreement (FTA), the small and medium-sized military companies, which are partners of automakers, are faced with the need to innovate their own technologies. The country's economy is inevitably weakened.

In view of the above aspects, the tuner cable cutting device of the present invention can provide an advantage that SMEs can secure technical competitiveness, and can also provide an advantage to increase the export as an environmentally friendly technology.

As described above, according to the present invention, by cutting a cable, for example, a vehicle tuner cable by applying a mold press cutting method that is performed through an automated process, the cable loss is reduced by about 50% compared to the existing cutting stone / saw blade method. It can reduce the defect rate, improve product quality and improve productivity, and it is an eco-friendly technology that can fundamentally eliminate metal dust, noise, and harmful gas generated in existing processes. As a result, it is possible to improve the work efficiency of the company, and furthermore, to actively cope with various foreign regulations, thereby increasing exports.

Claims (7)

A material supply part which feeds the material supplied in a continuous form by using an up-down cylinder for fixing the material and an LM unit for conveying the material, and transfers the material in the X-axis direction by a predetermined pitch;  Cable cutting device comprising a material cutting unit for cutting the material by the cutter blade cross-cutting method using a pair of cutter blade and the clamping block arranged to face each other while being operated by a cylinder between the materials. The method according to claim 1, Cable cutting device characterized in that it further comprises a material discharge portion to be pulled out at the same time while holding the cut out portion of the material by using a guide pin inserted into the inner diameter of the material when the material is cut by the cylinder. The method according to claim 1, The material supply unit is a cable cutting device, characterized in that it comprises a stopper which is installed in the front end of the LM unit and controls the cutting length of the material by controlling the moving distance of the assembly to which the up-down cylinder belongs. The method according to claim 1 or 3, Cable shearing device characterized in that the front end of the material supply unit is provided with a material guide portion to guide the material accurately into the material supply unit while guiding the progress trajectory of the material using a plurality of roller combinations. The method according to claim 1 or 3, Cable cutting device, characterized in that the holder block which is operated by the cylinder is provided in the section between the material supply portion and the material cutting portion to hold the exact position of the material conveyed pitch. The method according to claim 1, The material cutting part is coupled to the rod side and the cutter blade side of the cylinder, and the cable cutting, characterized in that to operate the cutter blade using two press blocks interlocked with each other while arranged 90 ° in the form of one side through the inclined surface of each other Device. The method according to claim 1, The clamping block of the material cutting unit is a cable cutting device comprising a combination of a fixed clamping block for supporting one circumferential surface of the material and a movable clamping block for pressing the opposite circumferential surface of the material while moving by the operation of the cylinder.

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