Automatic conveying and turning device for shaft parts between two lathes
Technical Field
The invention relates to an automatic conveying device, in particular to an automatic conveying and turning device for shaft parts between two lathes.
Background
The two ends of the shaft part are turned, and the currently adopted method is as follows: firstly, one end of the shaft part is machined on one numerical control lathe, after machining is finished, the machined workpiece at one end is taken out, the workpiece is manually turned around, and then the workpiece is sent to the next numerical control lathe to machine the other end of the workpiece. Because the workpiece is taken out, turned around and fed into the lathe by manual operation, one person only can watch two lathes, so the labor productivity is low, and because the shaft parts are processed and produced in large batch, the labor intensity is high, and the monotonous repeated operation causes people to be easy to fatigue, thereby affecting the safety production.
Another method is to use an automatic double-head lathe, such as the double-head lathe disclosed in the chinese patent application No. CN02122581.8 (publication No. CN1463814A) and its technology. However, the double-head lathe is complex in structure and high in price (the current price is 78 ten thousand yuan each), and is not the best choice for large-scale production of medium and small enterprises.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide an automatic transmission and turning device arranged between two common numerically controlled lathes, which can automatically transmit and turn a workpiece between the two lathes to automatically process two ends of a shaft part, effectively reduce the labor intensity of an operator, and realize that one person can watch four sets of lathes (i.e. eight lathes), thereby greatly improving the labor productivity.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an automatic conveying and turning device of axle type part between two lathe which characterized in that: the turning device comprises a first conveying part, a turning part and a second conveying part, wherein the first conveying part, the turning part and the second conveying part are arranged between a first lathe and a second lathe; the first conveying part comprises a first belt transmission device for conveying the workpiece processed by the first lathe to the front of the turning part rightwards, the first belt transmission device is connected with the turning part through a guide plate, a first material baffle plate for stopping the workpiece from continuing to move rightwards is arranged above the first belt transmission device, and the first material baffle plate is obliquely arranged so as to guide the workpiece to the guide plate and slide to the turning part through the guide plate; the turning part comprises a frame body, a bearing piece used for bearing the workpiece which slides from the guide plate is arranged above the frame body, the bearing piece is driven by a rotating shaft movably penetrating through the frame body and can rotate by 180 degrees, and an ejector rod which can slide left and right and can eject the workpiece on the bearing piece to the right is arranged above the bearing piece; the second conveying part comprises a second belt transmission device for conveying the workpiece ejected from the receiving part to the right, a material receiver is arranged in front of the second belt transmission device, a second material baffle plate for stopping the workpiece from moving to the right is arranged above the second belt transmission device, the second material baffle plate is obliquely arranged for guiding the workpiece conveyed by the second belt transmission device to the material receiver, and the material receiver is arranged on a lifting device for conveying the workpiece in the material receiver to a feeding groove of a second lathe.
The belts in the first belt transmission device and the second belt transmission device are formed by two round belts in parallel. This belt structure is convenient for retrain axle type work piece on the belt, and the work piece can retrain can not the front and back roll-off between two round belts, and this belt simple structure moreover, the belt is around establishing on a plurality of belt pulleys in addition, and one of them belt pulley is driven by the motor and is rotated and regard as the action wheel.
The above-mentioned accepting piece is the V-arrangement groove piece, and accepting piece fixes on the carousel, the middle part of terminal surface under the carousel is fixed in the pivot, it has the shaft hole that supplies the pivot to wear to establish to open on the support body, the pivot is passed through the upper bearing and is installed with lower bearing in the shaft hole, the lower extreme that exposes the pivot of support body below outward is fixed with the gear, and the below of support body still is equipped with first cylinder, is fixed with the rack on the piston rod of first cylinder, this rack with gear drive meshes.
The above specific implementation mode of specifically driving the bearing piece to rotate by 180 degrees utilizes the first cylinder to drive, and then through the gear and rack transmission principle, the rotating shaft can be well controlled to rotate by 180 degrees, and of course, the rotating shaft can also be driven by hydraulic pressure, machinery or a stepping motor and the like.
In order to better realize automatic conveying, the turntable and the bearing piece are provided with through holes, a first photoelectric sensor used for identifying whether a workpiece enters the bearing piece or not is further arranged below the frame body, and the first photoelectric sensor is positioned right below the through holes. When a workpiece enters the bearing piece, the first photoelectric sensor sends a signal to control the first cylinder to drive the rotating shaft to rotate 180 degrees, so that the workpiece is turned.
The ejector rod is fixed on the sliding block, the sliding block is sleeved on the transverse guide rod of the first support and can only slide left and right along the transverse guide rod, and the sliding block is fixed on the piston rod of the second air cylinder. The slider restraint is on the horizontal guide bar of first support, guarantees that the slider can not deflect, and the slider slides about through the drive realization slider of second cylinder and ejector pin in addition.
The lifting device comprises a second support located in front of the second belt transmission device, two guide blocks capable of sliding up and down are arranged on a vertical guide rod of the second support, the two guide blocks are connected together through a rod piece, the rod piece is fixed on a piston rod of a third cylinder, the material receiver is in a V shape, two ends of the rear part of the material receiver are rotatably connected onto the guide blocks, a tension spring for enabling the material receiver to keep deflecting forwards is further arranged between the material receiver and the guide blocks, a collision block is further fixed on the upper part of the second support and can be matched with a vertical wall of the material receiver in a blocking mode, namely, when the material receiver moves upwards to the upper part of the second support, the vertical wall of the material receiver collides with the collision block to enable the material receiver to deflect backwards.
The lifting device is powered by the cylinder, the material receiver is V-shaped, so that the workpiece is not easy to slide out of the material receiver, the material receiver can deflect, and when the material receiver upwards moves to the front position of the feeding groove of the second lathe, the workpiece in the material receiver can slide into the feeding groove along the same trend through the backward deflection of the material receiver so as to wait for the other end of the workpiece processed by the second lathe.
The device also comprises a second photoelectric sensor used for identifying whether the workpiece enters the material receiver or not, and the second photoelectric sensor is positioned below the material receiver. When the workpiece enters the material receiver, the second photoelectric sensor sends a signal to control the lifting device to start lifting.
Compared with the prior art, the invention has the advantages that: the automatic shaft part turning device is characterized in that a first conveying part, a turning part and a second conveying part are additionally arranged between two common numerically controlled lathes (the current price is 4 ten thousand yuan each), so that a workpiece is conveyed to the second lathe from the first lathe, and the workpiece is turned in the middle, so that automatic operation can be realized between the two common numerically controlled lathes, the labor intensity of an operator is reduced, one person can watch four groups of lathes (namely eight lathes), the labor productivity is greatly improved, the manufacturing cost of the device is 1-2 ten thousand yuan, the efficiency is basically the same as that of the automatic double-head lathe, the investment is greatly reduced, and the automatic shaft part turning device is the best choice for processing shaft parts on a large scale by small and medium-sized enterprises.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view at I of FIG. 1;
FIG. 3 is an enlarged sectional view taken along line A-A of FIG. 2;
FIG. 4 is an enlarged view of FIG. 1 taken along line F;
FIG. 5 is an enlarged sectional view taken along line B-B of FIG. 2;
FIG. 6 is an enlarged sectional view taken along line C-C of FIG. 5;
FIG. 7 is an enlarged sectional view taken along line D-D of FIG. 1;
FIG. 8 is an enlarged cross-sectional view taken along line E-E of FIG. 2;
FIG. 9 is an enlarged view at II of FIG. 4;
fig. 10 is an enlarged view at III of fig. 7.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in FIGS. 1 to 10, a preferred embodiment of the present invention is shown.
The automatic conveying and turning device for shaft parts between two lathes comprises a first conveying part, a turning part and a second conveying part which are arranged between a first lathe 1 and a second lathe 2, wherein the turning part is positioned between the first conveying part and the second conveying part, and the first lathe 1 and the second lathe 2 are common numerically controlled lathes; wherein,
as shown in fig. 1, 2, 3, 4, and 9, the first conveying part includes a first belt transmission device 3 that conveys a workpiece 10 processed by the first lathe 1 to the right in front of the turning part, the first belt transmission device 3 and the turning part are connected by a guide plate 4, the guide plate 4 is disposed obliquely, a first striker plate 31 that blocks the workpiece 10 from moving to the right is disposed above the first belt transmission device 3, and the first striker plate 31 is disposed obliquely to guide the workpiece 10 to the guide plate 4 and slide to the turning part via the guide plate 4.
As shown in fig. 1, 2 and 4, the first belt transmission device 3 mainly includes four belt pulleys 33 and belts 32, the four belt pulleys 33 are rotatably mounted on a spindle 35 fixed on the base frame through bearings 34, the belts 32 are sequentially wound around the respective belt pulleys 33 to form a closed loop, and one of the belt pulleys 33 is rotated by a motor to serve as a driving wheel, which is a conventional design of the belt transmission device. The first belt drive 3 is mainly characterized in that the belt 32 is formed by two circular belts arranged side by side, and each circular belt is embedded in a groove of the belt pulley 33.
As shown in fig. 4 to 6, the turning part includes a frame body 5, a receiving member 6 for receiving the workpiece 10 slipped through the guide plate 4 is disposed above the frame body 5, the receiving member 6 is a V-shaped groove block, the receiving member 6 is fixed on the rotary table 12, and the receiving member 6 is driven by a rotating shaft 7 movably penetrating through the frame body 5 and can rotate 180 degrees. The middle part of terminal surface under carousel 12 is fixed to pivot 7, and it has the shaft hole 51 that supplies pivot 7 to wear to establish to open on the support body 5, and pivot 7 passes through upper bearing 71 and lower bearing 72 and installs in shaft hole 51, and the lower extreme of the pivot 7 that exposes support body 5 below outward is fixed with gear 13, and the below of frame 5 still is equipped with first cylinder 14, is fixed with rack 15 on the piston rod of first cylinder 14, and this rack 15 and gear 13 transmission mesh. The rotary table 12 and the receiving member 6 are provided with through holes 16, and a first photoelectric sensor 17 for identifying whether the workpiece 10 enters the receiving member 6 is further provided below the frame body 5, wherein the first photoelectric sensor 17 is located right below the through holes 16. An ejector rod 8 capable of sliding left and right to eject the workpiece 10 on the receiving piece 6 to the right is arranged above the receiving piece 6, the ejector rod 8 is fixed on a slide block 81, the slide block 81 is sleeved on a transverse guide rod 821 of a first bracket 82 and can only slide left and right along the transverse guide rod, two transverse guide rods 821 are provided, and the slide block 81 is fixed on a piston rod of a second air cylinder 83.
As shown in fig. 1, 4, 7 and 10, the second conveying section includes a second belt driving device 9 for conveying the workpiece 10 ejected from the receiving member 6 to the right, a material receiving device 11 is provided in front of the second belt driving device 9, the material receiving device 11 is V-shaped, a second material blocking plate 91 for blocking the workpiece 10 from moving to the right is provided above the second belt driving device 9, the second material blocking plate 91 is disposed obliquely to guide the workpiece 10 conveyed by the second belt driving device 9 to the material receiving device 11, and the material receiving device 11 is mounted on a lifting device for conveying the workpiece 10 in the material receiving device 11 to the material feeding chute 21 of the second lathe 2.
As shown in fig. 1, 4, 7, 10, the second belt drive 9 mainly comprises two belt pulleys 93 and a belt 92, wherein one of the belt pulleys 93 is rotated by a motor and a chain drive portion 94, which is a conventional design of the belt drive. The second belt drive 9 is mainly characterized in that the belt 92 is formed by two circular belts arranged side by side, each circular belt being embedded in a groove of the pulley 93.
As shown in fig. 1, 4, 7, and 10, the lifting device includes a second bracket 18 located in front of the second belt driving device 9, two guide blocks 182 capable of sliding up and down are disposed on a vertical guide rod 181 of the second bracket 18, the two guide blocks 182 are connected together through a rod 183, the rod 183 is fixed to a piston rod of a third cylinder 184, two ends of the rear portion of the receiver 11 are rotatably connected to the guide blocks 182, a tension spring 185 for keeping the receiver 11 deflected forward is disposed between the receiver 11 and the guide blocks 182, and a striker 186 is fixed to the upper portion of the second bracket 18 and can be engaged with a vertical wall of the receiver 11, that is, when the receiver 11 is moved up to the upper portion of the second bracket 18, the vertical wall of the receiver 11 collides with the striker 185 to deflect the receiver 11 backward.
A small hole is arranged below the material receiver 11, and a second photoelectric sensor 19 for identifying whether the workpiece 10 enters the material receiver 11 is arranged right below the small hole.
The working principle and the process of the automatic conveying and turning device for the shaft parts between the two lathes are as follows:
the shaft workpiece 10 at one end processed by the first machine tool 1 is sent to a belt 32 of a first belt transmission device 3 by a discharging mechanism 20 of the first machine tool 1, the workpiece 10 is constrained between two round belts and does not shake back and forth, the first belt transmission device 3 acts, the workpiece 10 is transmitted to the position of a first baffle plate 31 by the belt 32, the workpiece 10 is guided to a guide plate 4 by the blocking action of the first baffle plate 31 and slides to a V-shaped groove of a bearing piece 6 by the guide plate 4, a first photoelectric sensor 17 sends a signal, a first air cylinder 14 has a left stroke and further drives a rack 15 to move forward for a certain distance, a gear 13 and a rotating shaft 7 are driven to rotate 180 degrees, the bearing piece 6 rotates 180 degrees along with a rotating disc 12, the turning of the workpiece 10 is realized, namely, the end of the workpiece to be processed faces a second machine tool, a second air cylinder 83 returns to the right to drive a sliding block 81 and an ejector rod 8 to move right, the workpiece 10 on the bearing piece 6 is ejected to the right to the belt 92 of the second belt transmission device 9, the workpiece 10 is constrained between the two circular belts and cannot shake back and forth, the second belt transmission device 9 acts, the workpiece 10 is transmitted to the position of the second baffle plate 91 through the belt 92, the workpiece 10 is guided to the V-shaped material receiver 11 under the blocking action of the second baffle plate 91, the second photoelectric sensor 19 sends out a signal, the third air cylinder 184 acts to push the guide block 182, the rod 183 and the material receiver 11 to move upwards, when the material receiver 11 is moved to the upper part of the second bracket 18, the vertical wall of the material receiver 11 collides with the collision block 185 to enable the material receiver 11 to deflect backwards against the pulling force of the tension spring 185, the workpiece 10 is turned out and sent to the feeding groove 21 of the second lathe 2, and the other end of the workpiece 10 is waited to be machined by the second lathe 2.
After the completion, the third cylinder 184 returns downwards to drive the guide slide block 182, the rod 183 and the material receiver 11 to move downwards and return to the lower end of the second bracket 18, meanwhile, the stroke of the second cylinder 83 is leftward, the ejector rod 8 is withdrawn from the V-shaped groove of the receiving part 6, and then, the stroke of the first cylinder 14 is rightward, the receiving part 6 is driven to rotate reversely by 180 degrees to reset, and the next workpiece 10 is ready to be received.
The signal processing of the photoelectric sensors and the action sequence of the cylinders are controlled by a programmable controller (POC).
The invention adopts two common numerical control lathes (the current price is 4 ten thousand yuan each), is additionally provided with the device, has the manufacturing cost of 1-2 ten thousand yuan, has basically the same effect as an automatic double-head lathe, greatly reduces the investment, and is the best choice for processing shaft parts on a large scale in medium and small enterprises.