CN105082233B - A kind of automatic shearing pipe machine - Google Patents

Abstract

An automatic pipe shearing machine, including an operation control system, a feeding mechanism, a traction positioning mechanism, and a pipe shearing mechanism; the operation control system determines the length of the pipe and controls the operation of the feeding mechanism, traction positioning mechanism, and pipe shearing mechanism, and the feeding mechanism cuts the pipe Transported to the traction and positioning mechanism, the pipe is pulled and positioned by the traction and positioning mechanism, and finally cut by the pipe shearing mechanism. The whole pipe cutting process can be automated and the production efficiency is high. Also because the pipe is positioned by the fixing plate and cut with scissors, the dimensional accuracy of the cut pipe is high, the shearing surface is smooth and level, the product qualification rate is high and the product cost is low.

Description

An automatic pipe cutter

technical field

The invention relates to a pipe shearing mechanism.

Background technique

Existing pipe cutting methods mostly use manual cutting or manual cutter cutting, which mainly has the following deficiencies:

1. Due to the existence of tube elasticity, the positioning is inaccurate, which can easily cause length deviation and fail to meet the accuracy requirements.

2. The cut surface of the pipe is uneven and easy to tear, resulting in defects such as cracks in the later use of the product.

3. Due to the need to manually position and cut the pipe, the production efficiency is low.

Need to design a kind of pipe shearing mechanism that meets actual needs for this reason.

Contents of the invention

The technical problem to be solved by the present invention is to provide an automatic pipe shearing machine aiming at the above-mentioned current state of the art, which can realize automation, the cut pipe has high dimensional accuracy, the shearing surface is smooth and flat, the production efficiency is high, the product qualification rate is high and the Product Cost.

The technical solution adopted by the present invention to solve the problems of the technologies described above is:

An automatic pipe shearing machine, including an operation control system, a feeding mechanism, a traction positioning mechanism, and a pipe shearing mechanism; the operation control system determines the length of the pipe and controls the operation of the feeding mechanism, traction positioning mechanism, and pipe shearing mechanism, and the feeding mechanism cuts the pipe Transported to the traction and positioning mechanism, the pipe is pulled and positioned by the traction and positioning mechanism, and finally cut by the pipe shearing mechanism.

Preferably, the operation control system first determines the elastic coefficient of the material pipe and the tension value of the traction pipe, calculates the elongation value per unit length according to the elastic coefficient and the traction tension value, and increases this elongation value as a compensation value to the required In the standard length of the cut pipe, the correction of the actual traction length is completed, so that the cut pipe returns to the natural state without tension, and the pipe length meets the requirements of the standard value, realizing effective control of the length accuracy.

Preferably, it also includes a marking mechanism, which marks the appropriate position of the pipe for positioning when the pipe is used.

Because the present invention adopts the automatic pipe cutting mechanism, the whole pipe cutting process can be automated and the production efficiency is high. Also because the pipe is positioned by the fixing plate and cut with scissors, the dimensional accuracy of the cut pipe is high, the shearing surface is smooth and level, the product qualification rate is high and the product cost is low.

Description of drawings

Fig. 1 is a partial front view of an automatic pipe shearing machine according to an embodiment of the present invention.

Fig. 2 is a partial top view of the automatic pipe shearing machine according to the embodiment of the present invention.

Fig. 3 is a front view of the feeding mechanism of the automatic pipe shearing machine according to the embodiment of the present invention.

Fig. 4 is a top view of the feeding mechanism of the automatic pipe shearing machine according to the embodiment of the present invention.

Fig. 5 is a top view of the initial position of the pulling and positioning mechanism of the automatic pipe shearing machine according to the embodiment of the present invention.

Fig. 6 is a top view of the end position of the traction positioning mechanism of the automatic pipe shearing machine according to the embodiment of the present invention.

Fig. 7 is a view from the direction of P in Fig. 5 .

Fig. 8 is a front view of the marking mechanism of the automatic pipe shearing machine according to the embodiment of the present invention when marking the initial position.

Fig. 9 is a front view of the marking position of the marking mechanism of the automatic pipe shearing machine according to the embodiment of the present invention.

Fig. 10 is a front view of the marking mechanism of the automatic pipe shearing machine according to the embodiment of the present invention when marking the end position.

Fig. 11 is a view from the direction A of Fig. 8 .

Fig. 12 is a side view of the initial position of the automatic pipe shearing machine according to the embodiment of the present invention.

Fig. 13 is a side view of the cutting position of the cutter of the automatic pipe shearing machine according to the embodiment of the present invention.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1-13, the automatic pipe shearing machine includes an operation control system 10, a feeding mechanism 20, a traction positioning mechanism 30, a marking mechanism 40, and a pipe shearing mechanism 50.

The above operation control system 10 controls the operation of the entire automatic pipe shearing machine. The operation control system 10 first determines the length of the cut pipe 206, then starts the feeding mechanism to feed the material, and then the traction and positioning mechanism 30 pulls the pipe and then positions it. Mark with the marking mechanism 40, and finally cut the pipe by the pipe cutting mechanism 50 to obtain the pipe of required length.

For the pipe made of elastic material, in order to cut the length of the pipe more accurately, it is necessary to determine the compensation value of the pipe length according to the traction length of the pipe and the elastic material of the pipe. First, determine the elastic coefficient of the material pipe and the tension value of the traction pipe , and then calculate the elongation value per unit length according to the elastic coefficient and traction tension value, add this elongation value as a compensation value to the standard length of the pipe to be cut, and complete the correction of the actual pipe traction length, so that after cutting When the pipe returns to the natural state without tension, the length of the pipe meets the requirements of the standard value, so as to realize the effective control of the precision of the pipe length.

Above-mentioned feeding mechanism 20 comprises feeding driving mechanism, feeding guiding mechanism, and feeding driving mechanism comprises servomotor 203, main driving wheel 201, driven wheel 204, and main driving wheel 201 is installed on the axle of servomotor 203, is driven by servomotor Driven by 203, the main drive wheel 201 and the driven wheel 204 are set up and down relatively, and the main drive wheel 201, the driven wheel 204 and the servo motor 203 are all installed on the fixed plate 202; the feed guide mechanism includes four feed guide wheels set up and down oppositely 205, an arc-shaped groove that can accommodate the pipe 206 is provided on the circumferential surface of the feeding guide wheel 205, and the four feeding guide wheels 205 are divided into upper and lower groups, and the space between the two groups of feeding guide wheels 205 arc-shaped grooves just allows the pipe 206 through.

The pulling and positioning mechanism 30 includes a pipe pulling mechanism, a pipe positioning mechanism and a pipe fixing mechanism.

The above-mentioned pipe traction mechanism includes a servo motor 301, a timing belt 305, a traction assembly 304, and a traction chuck 3011. The traction chuck 3011 is fixed on the traction assembly 304, and the traction assembly 304 is fixed to the timing belt 305, driven by the timing belt 305, and the timing belt 305 is installed on the pulley 303, driven by the pulley 303, the pulley 303 is fixed on the output shaft of the servo motor 301, driven by the servo motor 301 to rotate, the servo motor 301 is fixed on the fixed bracket 302.

Above-mentioned traction assembly 304 is arranged on the sliding track 306, is guided by sliding track 306, can better position and move like this.

The pipe positioning mechanism is arranged in front of the movement of the pipe traction mechanism, including a fixed chuck positioning assembly 308, a sliding track 306, and a locking screw 307; the fixed chuck positioning assembly 308 can move on the sliding rail 306, and the locking screw 307 is fixed on the corresponding position on the sliding track 306 .

The distance between the fixed chuck positioning assembly 308 and the traction chuck 3011 is adjusted according to the length of the pipe to be cut, and the fixed chuck positioning assembly 308 is locked on the sliding track 306 by the locking screw 307 after being moved into place.

The pipe fixing mechanism includes a fixed chuck 3010 and a fixed chuck driving cylinder 309 , and the fixed chuck driving cylinder 309 drives the fixed chuck 3010 to open and close to clamp or loosen the pipe 25 . The fixed chuck 3010 and the fixed chuck drive cylinder 309 are fixed on the fixed chuck positioning assembly 308 of the pipe positioning mechanism, the chuck position of the fixed chuck 3010 is on the same axis as the chuck position of the traction chuck 3011, so by the traction The pipe drawn by the chuck 3011 can enter the fixed chuck 3010 and be clamped by the fixed chuck.

When the traction chuck 3011 clamps the pipe 206, the synchronous belt 305 drives the traction assembly 304 to move on the sliding track 306, and sends the pipe 206 to the fixed chuck 3010, then the traction chuck 3011 releases the pipe 206, and the fixed chuck drives The cylinder 309 pushes the fixed chuck 3010 to clamp the pipe 206 to realize the positioning of the pipe 206; the traction chuck 3011 and the traction assembly 304 are driven back to the initial position by the timing belt 305, waiting for the next traction.

As shown in Figures 8-11, the above-mentioned marking mechanism 40 includes a marking cylinder 401, a push plate 402, a marking pen fixing plate 404 and a marking pen 405, and a pushing plate 402 is installed on the piston rod of the marking cylinder 401, and the pushing plate 402 passes The hinge 403 is connected to a marker pen fixing plate 404 on which a marker pen 405 is installed. The marking mechanism 40 is installed on the side of the pipe positioning mechanism.

When the pipe 206 needs to be marked, the piston rod of the marking cylinder 401 pushes the push plate 402 to move to the left, and the marking pen 405 will move to the left synchronously. Mark on 206, when marking pen 405 passes through the outer circular surface of pipe 206, because the outer circular surface of pipe 206 is arc-shaped, because marking pen fixed plate 404 is connected with push plate 402 by hinge 403, therefore, marking pen 405 passes through pipe Make marking pen 405 close to pipe 206 outer circle surface during 206 outer circle surfaces, can form arc-like trajectory, mark cylinder 401 drives push plate 402 to move to the right after marking, get back to starting position.

As shown in FIGS. 12 and 13 , the pipe shearing mechanism 50 includes a blade positioning mechanism and a cutter mechanism. The blade positioning mechanism is arranged above the moving direction of the pipe 206 , and the cutter mechanism is arranged below the moving direction of the pipe 206 .

Above-mentioned knife plate positioning mechanism comprises knife plate cylinder 501, knife plate 503, knife plate fixing plate 502, knife plate 503 is installed on the knife plate cylinder 501 piston rod, and knife plate 503 slides in knife plate fixing plate 502.

Above-mentioned cutter mechanism comprises cutter cylinder 506, cutter 505, cutter fixed plate 504, and cutter 505 is fixed on cutter cylinder 506, and cutter 505 slides in cutter fixed plate 504.

When the pipe needs to be cut off, the knife plate cylinder 501 pushes the knife plate 503 to move in place, the pipe 206 abuts against the knife plate 503, the cutter cylinder 506 pushes the cutter 505 to move upwards, and the pipe 206 is cut off, as shown in Figure 13; after cutting the pipe 206 The cutter cylinder 506 drives the cutter 505 to move downwards and get back to the initial position, as shown in FIG. 12 .

The working process of the automatic pipe shearing machine is as follows: according to the material of the pipe, select in the operation control system 10, input the length of the pipe to be cut, the operation control system will automatically calculate and compensate the length compensation value, and determine the positioning of the traction positioning mechanism Length value, manually lock the fixed chuck positioning assembly at this position on the guide rail, and then the operation control system automatically controls the feeding mechanism to send the pipe into the traction positioning mechanism, and the traction positioning mechanism pulls the pipe to move to the length that needs to be marked position, the traction and positioning mechanism stops moving, and the marking mechanism starts to mark. After the marking is completed, the traction and positioning mechanism continues to pull the pipe to move, and stops after moving to the set position. The fixed chuck clamps and fixes the pipe, and the traction and positioning mechanism The traction chuck releases the pipe and moves to the starting position, the traction chuck clamps the pipe again, the pipe cutting mechanism starts to work, cuts the pipe, and one working cycle is completed, the traction positioning mechanism pulls the pipe and moves again, and starts the next work cycle.

Claims (4)

1. a kind of automatic shearing pipe machine, including operation control system, feeding mechanism, traction detent mechanism and Jian Guan mechanisms；Operation control System processed determines tube length and controls feeding mechanism, traction detent mechanism and the operation of Jian Guan mechanisms, feeding mechanism that pipe is defeated It is sent at traction detent mechanism, pipe is drawn and positioned by traction detent mechanism again, is finally cut by Jian Guan mechanisms；The operation Control system determines the coefficient of elasticity of pipe and the tension value of traction pipe according to the material of pipe first, according to coefficient of elasticity and Drawing tension value, the stretch value of per unit length is calculated, this stretch value is increased to as offset the pipe for needing to cut In substandard length, the amendment to actual drawing length is completed；It is fixed that the traction detent mechanism includes tube draught mechanism, pipe Position mechanism and pipe fixed mechanism；The tube draught mechanism includes servomotor, synchronous belt, traction component, traction chuck, Traction chuck is fixed on traction component, and traction component is fixed with synchronous belt, is driven by synchronous belt, and synchronous belt is arranged on On belt pulley, by pulley drive, belt pulley is fixed on the output shaft of servomotor, is driven its rotation by servomotor, is watched Motor is taken to be fixed on fixed support；The traction component is arranged on sliding rail, is oriented to by sliding rail；The pipe is determined Position mechanism is arranged on the front of tube draught mechanism kinematic, including fixed chuck positioning component, sliding rail, lock-screw, Gu Clamp head positioning component can be moved on sliding rail, and lock-screw is fixed on the correspondence position on sliding rail；The pipe Sub- fixed mechanism includes fixed chuck, fixed chuck drive cylinder, and fixed chuck drive cylinder drives fixed chuck folding and pressed from both sides Firmly or unclamp pipe；Fixed chuck, fixed chuck drive cylinder are fixed on the fixed chuck positioning component of pipe detent mechanism, The clip position of fixed chuck and the clip position of traction chuck are on the same axis.

2. automatic shearing pipe machine as claimed in claim 1, it is characterised in that：The feeding mechanism includes charging drive mechanism, entered Expect guiding mechanism, charging drive mechanism includes servomotor, main drive wheel, follower, and main drive wheel is arranged on servomotor On axle, driven by servomotor, main drive wheel and follower are oppositely arranged up and down, and main drive wheel, follower and servomotor are all In fixed plate；Feeding guide mechanism includes the charging guide wheel being oppositely arranged up and down, and being opened up on charging guide wheel periphery can The deep-slotted chip breaker of pipe is accommodated, charging guide wheel is divided into two groups up and down, and the space between two groups of charging guide wheel deep-slotted chip breakers just allows pipe Son passes through.

3. automatic shearing pipe machine as claimed in claim 1, it is characterised in that：The Jian Guan mechanisms include knife plate detent mechanism and cut Cutter mechanism, knife plate detent mechanism are arranged on the top of the pipe direction of motion, and cutter mechanism is arranged on the lower section of the pipe direction of motion； The knife plate detent mechanism includes knife plate cylinder, knife plate, knife plate fixed plate, installs knife plate on knife plate cylinder piston rod, knife plate exists Enter line slip in knife plate fixed plate；The cutter mechanism includes cutting knife cylinder, cutting knife, cutting knife fixed plate, is fixed on cutting knife cylinder Cutting knife, cutting knife slide in cutting knife fixed plate；Need cut off pipe when, knife plate cylinder promote knife plate move into place, pipe against On knife plate, cutting knife cylinder promotes cutting knife to move up, and pipe is cut；Cutting knife cylinder drives cutting knife to moving down after cut-out pipe It is dynamic, return to original position.

4. automatic shearing pipe machine as claimed in claim 1, it is characterised in that：Also include marking mechanism, marking mechanism is arranged on pipe The side of sub- detent mechanism, the marking mechanism include mark cylinder, push pedal, marker pen fixed plate and marker pen, mark cylinder Piston rod on push pedal is installed, push pedal is connected through the hinge marker pen fixed plate, adjustment notch pen in marker pen fixed plate.