CN213794636U - Pipe material car silk production line - Google Patents

Abstract

The utility model discloses a pipe material turning and wire production line, which comprises a material feeding frame, a first turning and wire machine auxiliary machine, a first transition frame, a first grinding frame, a second transition frame, a second turning and wire machine auxiliary machine, a gantry conveying frame, a second grinding frame and a movable rack which are arranged in sequence; the feeding end of the first wire machine auxiliary machine is connected into the discharging end of the material rack; a waiting station and a first end threading station are arranged on the first threading machine auxiliary machine, and the first threading machine auxiliary machine transfers an oil sleeve on the threading station to the first transition frame; a first material receiving plate is arranged on the first grinding frame, and the first material receiving plate is lifted to transfer the oil casing on the first transition frame to the first grinding frame; and an alignment station and a second wire end turning station are arranged on the second wire turning machine auxiliary machine, and the gantry conveying frame takes the oil sleeve out of the second wire end turning station. The utility model discloses can automize car silk and letter sorting, reduce artificial intervention, it is efficient, can not damage the oil jacket pipe, save the cost of labor.

Description

Pipe material car silk production line

Technical Field

The utility model relates to a car silk specifically is a pipe car silk production line.

Background

When oil casing car silk, need both ends all car silk, traditional mode adopts the manual work to hand the oil casing and carries out car silk, and artificial mode is wasted time and energy, and efficiency is lower, needs the manual work to carry out the tip and aligns, hardly realizes automated production to control sometimes when the manual work is taken can damage oil casing.

SUMMERY OF THE UTILITY MODEL

For solving the defect of the prior art, the utility model provides a pipe material car silk production line can automize car silk and letter sorting, reduces artificial intervention, and is efficient, can not damage the oil sleeve pipe, saves the cost of labor.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: a pipe material turning and wire producing line comprises a material feeding frame, a first wire turning machine auxiliary machine, a first transition frame, a first grinding frame, a second transition frame, a second wire turning machine auxiliary machine, a gantry conveying frame, a second grinding frame and a moving rack which are sequentially arranged; the feeding end of the first wire machine auxiliary machine is connected with the discharging end of the feeding frame; a waiting station and a first end threading station are arranged on the first threading machine auxiliary machine, and the first threading machine auxiliary machine transfers an oil sleeve on the threading station to the first transition frame; a first material receiving plate is arranged on the first grinding frame, and the first material receiving plate is lifted to transfer the oil casing on the first transition frame to the first grinding frame; the second transition frame transfers the oil casing pipe from the first grinding frame to the second wire machine auxiliary machine; an alignment station and a second wire end turning station are arranged on the second wire turning machine auxiliary machine, and the gantry conveying frame takes the oil sleeve out of the second wire end turning station; a second material receiving plate is arranged on the second grinding frame, and the second material receiving plate is lifted to transfer the oil casing to the second grinding frame; the travelling gantry transfers the oil jacket out of the second sharpening gantry.

Furthermore, a material shifting hook used for conveying a single oil casing is arranged on the material feeding frame, and the oil casing is shifted to the material feeding frame by the material shifting hook.

Furthermore, the feeding frame comprises a material guide frame which is obliquely arranged, and a rotating shaft is arranged on the material guide frame; the material shifting hook comprises an inclined plate, one end of the inclined plate is fixed to the rotating shaft and extends to form a baffle, and the other end of the inclined plate is provided with an inclined hook.

Further, a first material stopper, a waiting V-shaped frame and a first feeding roller are sequentially arranged on the first wire machine auxiliary machine; the first wire machine auxiliary machine is further provided with a first poking plate, and the first poking plate pokes the oil sleeve to the waiting V-shaped frame from the first material stopper position and/or pokes the oil sleeve to the first feeding roller from the waiting V-shaped frame.

Furthermore, a first lifting carrier roller is further arranged on the first end wire turning station, the first lifting carrier roller is connected with a lifting driving device, and the lifting driving device drives the first lifting carrier roller to ascend or descend; and the first lifting carrier roller is provided with a press roller, and the press roller is pressed on the oil sleeve by rotating the rotating plate.

Furthermore, the discharging pipe of the first transition frame is lower than the feeding end, and the discharging end of the first transition frame is provided with a second material retaining device.

Further, a first rotating roller set is arranged on the first grinding frame, and a second rotating roller set is arranged on the second grinding frame; the first grinding frame and the second grinding frame are identical in structure.

Further, a third material blocking device, an aligning conveying roller and a second feeding roller are sequentially arranged on the second wire machine auxiliary machine; and a second shifting plate is further arranged on the second wire machine auxiliary machine and is used for shifting the oil sleeve to the aligning conveying roller from the third material retainer position and/or shifting the oil sleeve to the second feeding roller from the aligning conveying rollers.

Further, the aligning conveying roller is connected with a motor reducer; a second lifting carrier roller is further arranged on the second wire end turning station, the second lifting carrier roller is connected with a lifting driving device, and the lifting driving device drives the second lifting carrier roller to ascend or descend; and a press roller is arranged on the second lifting carrier roller and is pressed on the oil sleeve by rotating the rotating plate.

Furthermore, the gantry conveying frame is provided with a first gantry trolley and a second gantry trolley, the first gantry trolley is provided with a linear motor, the linear motor provides power for the second wire end turning station to push the oil casing to a specified station, the first gantry trolley is provided with a clamping hand, and the clamping hand clamps the oil casing to take the oil casing out of the machine tool; and magnetic grid rulers are arranged on the first gantry trolley and the second gantry trolley.

To sum up, the utility model discloses following technological effect has been gained:

1. the utility model realizes full-automatic production of pipe materials and automatically sorts the pipe materials with different specifications;

2. the utility model greatly improves the production efficiency and saves the labor cost;

3. the utility model discloses it has accomplished to take gently to put to step-by-step getting the material. The production noise is reduced. The production efficiency is improved;

4. the gantry scale of the utility model adopts the combination of the linear motor and the magnetic grid ruler to make the measurement precision more accurate;

5. the utility model relates to a simple and practical fully reaches the production demand.

Drawings

FIG. 1 is a top view of a production line provided by an embodiment of the present invention;

FIG. 2 is a side view of a production line provided by an embodiment of the present invention;

FIG. 3 is a partial schematic view of FIG. 2;

FIG. 4 is a partial schematic view of a first wire machine auxiliary machine;

FIG. 5 is a schematic view of a first sharpening stage;

FIG. 6 is a schematic view of a second wire machine auxiliary machine;

figure 7 is a schematic view of the gantry carriage 7.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

as shown in fig. 1 and 2, a pipe material turning and wire producing line is used for conveying, turning and polishing oil casing pipes, and as shown in fig. 2, the pipe material turning and wire producing line comprises a material feeding frame 1, a first turning and wire machining auxiliary machine 2, a first transition frame 3, a first grinding frame 4, a second transition frame 5, a second turning and wire machining auxiliary machine 6, a gantry conveying frame 7, a second grinding frame 8 and a moving table frame 9 which are sequentially arranged. Wherein, the feed end of the first threading machine auxiliary machine 2 is connected to the discharge end of the material rack 1; the first wire turning machine auxiliary machine 2 is provided with a waiting station and a first end wire turning station, the first wire turning machine auxiliary machine 2 transfers an oil sleeve on the wire turning station to the first transition frame 3, and the first wire turning machine auxiliary machine 2 is used for turning one end of the oil sleeve; a first material receiving plate is arranged on the first grinding frame 4, and the first material receiving plate is lifted to transfer the oil casing on the first transition frame 3 to the first grinding frame 4; the second transition frame 5 transfers the oil casing from the first grinding frame 4 to a second wire machine auxiliary machine 6; the second wire cutting machine auxiliary machine 6 is provided with an alignment station and a second wire end cutting station, the second wire cutting machine auxiliary machine 6 is used for cutting the other end of the wire oil sleeve, and the gantry conveying frame 7 takes the oil sleeve out of the second wire end cutting station; a second material receiving plate is arranged on the second grinding frame 8, and the second material receiving plate is lifted to transfer the oil casing to the second grinding frame 8; the moving gantry 9 transfers the oil jacket out of the second sharpening gantry 8.

Specifically, as shown in fig. 3, a material shifting hook for conveying a single oil casing is arranged on the material feeding frame 1, and the oil casing is shifted to the material feeding frame 1 by the material shifting hook. Further, as shown in fig. 3, the material feeding frame 1 includes a material guiding frame 101 disposed obliquely, so that the oil bushing can roll down on the first threading machine auxiliary machine 2 along the material guiding frame 101, a rotating shaft 102 is disposed on the material guiding frame 101, and the rotating shaft 102 is connected to an air cylinder (not shown); the material shifting hook comprises an inclined plate 103, one end of the inclined plate 103 is fixed on the rotating shaft 102 and extends to form a baffle 105, the other end of the inclined plate 103 is provided with an inclined hook 104 used for hooking an oil casing and then rotating to rise, in the rotating process, the baffle 105 blocks the oil casing to avoid dropping, and when the inclined plate 103 rotates to the reverse side, the oil casing rolls on the guide frame 101 from the inclined plate 103.

Specifically, as shown in fig. 4, a first material stopper 207, a waiting V-shaped frame 208 and a first feed roller 213 are sequentially arranged on the first threading machine auxiliary machine 2, wherein the waiting V-shaped frame 208 is located on a waiting station, the first feed roller 213 is located on a first end threading station for feeding, a first lifting carrier roller 210 is further arranged on the first end threading station, and can be lifted and dropped to assist the machine tool in threading at one end, and the oil sleeves are aligned at one end (the position of reference numeral 1 in fig. 1 shows that one end is aligned); the first wire turning machine auxiliary machine 2 is further provided with a first material shifting plate 203, and the first material shifting plate 203 shifts the oil sleeve from the first material stopper 207 position to the waiting V-shaped frame 208 and/or shifts the oil sleeve from the waiting V-shaped frame 208 to the first feeding roller 213. Further, as shown in fig. 4, a transmission shaft 201 is disposed on the first threading machine auxiliary machine 2, the transmission shaft 201 is connected with a motor (not shown), the transmission shaft 201 drives the two gears 202 to rotate, the first material-poking plate 203 is hinged to the two gears 202 and rotates along with the gears 202, in this embodiment, the gears 202 rotate counterclockwise, so that the first material-poking plate 203 also rotates counterclockwise, three V-shaped plates, namely a first V-shaped plate 204, a second V-shaped plate 205 and a third V-shaped plate 206 are mounted on the first material-poking plate 203, wherein the first V-shaped plate 204 pokes the oil casing at the position of the first material stopper 207 onto the waiting V-shaped frame 208 when rotating, the second V-shaped plate 205 pokes the oil casing at the position of the waiting V-shaped frame 208 onto the first feeding roller 213 when rotating, the third V-shaped plate 206 pokes the oil casing at the position of the first feeding roller 213 onto the first transition frame 3 when rotating, the gear 202 rotates for one circle to drive the first material shifting plate 203 to rotate for one circle, so that the transmission of a single oil casing is realized.

Further, as shown in fig. 4, the first lifting idler 210 is connected with a lifting driving device (not shown), the first lifting idler 210 is provided with 2 rollers, the 2 rollers support the oil casing, and the lifting driving device drives the first lifting idler 210 to ascend or descend so as to drive the oil casing to ascend or descend; the first lifting carrier roller 210 is provided with a press roller 212, the press roller 212 presses the oil sleeve by rotating the rotating plate 211, and the rotating plate 211 is pushed by the air cylinder. When the oil casing reaches the first feeding roller 213 for threading, the first lifting carrier roller 210 rises to a designated threading station, and the pressing roller 212 presses the oil casing to prevent the oil casing from shaking. Furthermore, two pinch wheels 209 are further arranged on the first end threading station and used for clamping oil sleeves for feeding, the pinch wheels 209 correspond to the first feeding rollers 213, and the pinch wheels 209 are provided with clamping cylinders (not shown) which enable the two pinch wheels 209 to be close to each other to clamp the oil sleeves so as to convey the oil sleeves to a specified station in the machine tool, wherein the clamping mode can adopt gear transmission and other modes, the pinch wheels 209 are connected with servo motors, and the servo motors provide conveying power.

Specifically, the discharging pipe of the first transition frame 3 is lower than the feeding end, and the discharging end of the first transition frame 3 is provided with a second stopper 301 (shown in fig. 1).

Specifically, as shown in fig. 5, a first turning roller group is provided on the first sharpening frame 4, and a second turning roller group is provided on the second sharpening frame 8.

The first grinding frame 4 and the second grinding frame 8 have the same structure, taking the first grinding frame 4 as an example, as shown in fig. 5, a grinding cylinder 401 is disposed in the first grinding frame 4, a platform is disposed at an upper end of the grinding cylinder 401, a first rotating roller set 403 and a first material receiving plate 404 are mounted on the platform, the first material receiving plate 404 is disposed in an inclined manner, a high end of the first material receiving plate 404 faces the first transition frame 3, a low end of the first material receiving plate 404 faces the first rotating roller set 403, when the oil casing is blocked by the second material blocking device 301 on the first transition frame 3, the high end of the first material receiving plate 404 starts to be lifted from below the first transition frame 3, the high end jacks up the oil casing, and the oil casing slides to the low end along the first material receiving plate 404 and then falls on the first rotating roller set 403 for manual grinding. The structure of the second grinding frame 8 is not described in detail.

Specifically, as shown in fig. 6, a third material stopper 601, an alignment conveying roller 602, and a second feeding roller 603 are sequentially arranged on the second threading machine auxiliary machine 6, wherein the alignment conveying roller 602 is located on an alignment station and is used for aligning the other end (the end without threading) of the oil casing, and the second feeding roller 603 is located on a second end threading station and is used for assisting the machine tool in threading the other end of the oil casing; the second wire machine auxiliary machine 6 is further provided with a second material shifting plate 606, and the second material shifting plate 606 shifts the oil sleeves from the third material blocking device 601 to the alignment conveying rollers 602 and/or shifts the oil sleeves from the alignment conveying rollers 602 to the second feeding rollers 603. Specifically, the structure and the operating principle of the second switch plate 606 on the second wire-turning auxiliary machine 6 are the same as those of the first switch plate 203 on the first wire-turning auxiliary machine 2, and are not described again here.

Further, a motor reducer (not shown) is connected to the registration feed roller 602; a second lifting carrier roller 605 is further arranged on the second end threading station, the second lifting carrier roller 605 is connected with a lifting driving device (not shown), and the lifting driving device drives the second lifting carrier roller 605 to ascend or descend for ascending the oil casing to a specified threading station; the second lifting carrier roller 605 is provided with a press roller, and the press roller is pressed on the oil sleeve by the rotating plate in a rotating motion. The structure and the operation principle of the second lifting idler 605 are the same as those of the first lifting idler 210, and are not described herein again.

Specifically, as shown in fig. 7, the gantry transport frame 7 is provided with a first gantry trolley 701 and a second gantry trolley 702, the first gantry trolley 701 is provided with a linear motor, the linear motor provides power for a second end threading station to push an oil casing into a machine tool (not shown) to a specified station, meanwhile, a magnetic grid ruler on the trolleys is used for measuring the length of the oil casing, the first gantry trolley 701 is provided with a clamping hand (not shown) which clamps the oil casing to take the oil casing out of the machine tool, and then the second gantry trolley 702 is used for measuring the length after processing by the magnetic grid ruler on the trolleys after arriving and then retreats to the original position.

Furthermore, the first gantry trolley 701 and the second gantry trolley 702 are respectively fixed at two ends of the gantry conveying frame 7 in a sliding rail, sliding block, driving cylinder and drag chain manner, in addition, a set of linear motor stator and 1 set of magnetic grid ruler are arranged on a gantry beam, the mover drives the trolleys to move on the stator, and the magnetic grid reading head on the trolleys is used for acquiring position information.

Furthermore, the first feed roller 213, the second feed roller 603, the first lifting idler 210 and the second lifting idler 605 are respectively connected with an adjusting assembly (not shown), so that the overall height of the whole feed roller and the whole lifting idler can be adjusted, and the height position of the central line can be adjusted to adapt to oil casings with different specifications.

The working principle is as follows:

the oil casing pipe is conveyed from an incoming material roller way (a central line of the incoming material roller way is shown in figure 1), and reaches a feeding rack on the front side of an auxiliary machine 2 of a first threading machine through a mechanical material poking hook on an incoming rack 1, a material signal is provided on the rack, a first feeding roller 213 is lifted to a designated station, a stepping beam performs gear circumferential transmission through a motor reducer, so that the oil casing pipe is transmitted to a waiting station (waiting V-shaped rack 208) from the position of a first material stopper 207, then another oil casing pipe of a circle is transmitted to the first material stopper 207 to wait for next transmission, the original oil casing pipe on the waiting station reaches a threading station (first feeding roller 213), and the stepping beam stops transmission;

the wire turning station senses a material signal, the pinch roller 209 starts to clamp an oil sleeve by a clamping cylinder (not shown), the oil sleeve is driven by a servo motor to be sent to a designated station of a main machine (not shown) of the wire turning machine, then a chuck (not shown) of the machine tool clamps the oil sleeve, the first lifting carrier roller 210 is lifted to the designated station, the pinch roller 209 is loosened, the first feeding roller 213 falls down, the oil sleeve starts to be machined, after machining is completed, the first feeding roller 213 is lifted, the pinch roller 209 clamps the oil sleeve, the chuck of the machine tool is loosened, the first lifting carrier roller 210 falls down, the pinch roller 209 moves reversely to convey the oil sleeve to the safety designated station, the stepping beam is driven again to convey the oil sleeve at the position of the first material stopper 207 to the waiting station, the oil sleeve at the waiting station to the wire turning station, and the oil sleeve machined at the wire turning station is conveyed to the discharging station, so as to circulate;

when the oil casing pipe reaches the manual grinding station, namely the first grinding frame 4, the oil casing pipe is blocked by a seven-edge material blocking device, namely the second material blocking device 301, when the oil casing pipe is to be ground, the grinding cylinder 401 is controlled by a pneumatic foot switch to move up and down, when the platform is lifted up, the oil casing pipe in front of the material blocking station is shifted to the first rotating roller group 403 to be ground manually, a motor speed reducer (not shown) is used for pneumatic driving, the oil casing pipe starts grinding and rotating, when the grinding is finished, the oil casing pipe is lifted and rotated down, the oil casing pipe rolls from the platform frame to the second transition frame 5, the walking beam detects a material signal, the second feeding roller 603 is lifted, the walking beam starts to drive the oil casing pipe to the alignment station (alignment conveying roller 602) from the third material blocking device 601, the alignment conveying roller 602 is driven by the motor speed reducer (not shown), the oil casing pipe is aligned with the end of the wire turning machine, then the walking beam drives the oil casing pipe to be aligned again, the oil sleeve at the position of the third material stopper 601 is transmitted to the second wire end turning station, and the oil sleeve at the position of the third material stopper 601 is transmitted to the alignment station;

after a wire turning station detects a material signal, the first gantry trolley 701 pushes an oil casing to a specified position for machining of a machine tool through the accurate positioning of a linear motor and a magnetic grid ruler, the length of the oil casing is measured at the same time, a chuck clamps the oil casing, the second lifting carrier roller 605 rises, the second feeding roller 603 falls, the first gantry trolley 701 retreats to a safe station to wait, the machine tool starts, after the wire turning is completed, the first gantry trolley 701 advances, two double-shaft cylinders respectively extend into the inner wall and the outer wall of the pipe to clamp the pipe wall, the oil casing is pulled out to the specified station, and the length of the oil casing after machining is measured on the second gantry trolley 702.

The first wire-turning machine auxiliary machine 2 and the second wire-turning machine auxiliary machine 6 are further provided with adjusting rods 10, the adjusting rods 10 are respectively connected with the first feeding roller 213 and the second feeding roller 603, the connecting mode adopts a hinged mode and a cylinder transmission mode, and the positions of the first feeding roller 213 and the second feeding roller 603 can be adjusted so as to adjust various specifications suitable for pipe materials.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.

Claims (10)

1. The utility model provides a pipe material car silk production line which characterized in that: the automatic grinding machine comprises a material feeding frame (1), a first auxiliary machine (2) of a threading machine, a first transition frame (3), a first grinding frame (4), a second transition frame (5), a second auxiliary machine (6) of the threading machine, a gantry conveying frame (7), a second grinding frame (8) and a moving table frame (9) which are arranged in sequence; the feeding end of the first threading machine auxiliary machine (2) is connected with the discharging end of the feeding frame (1); a waiting station and a first end threading station are arranged on the first threading machine auxiliary machine (2), and the first threading machine auxiliary machine (2) transfers an oil sleeve on the threading station to the first transition frame (3); a first material receiving plate is arranged on the first grinding frame (4), and the first material receiving plate is lifted to transfer the oil casing on the first transition frame (3) to the first grinding frame (4); the second transition frame (5) transfers the oil casing pipe from the first grinding frame (4) to the second auxiliary machine (6); an alignment station and a second wire end turning station are arranged on the second wire turning machine auxiliary machine (6), and the gantry conveying frame (7) takes the oil sleeve out of the second wire end turning station; a second material receiving plate is arranged on the second grinding frame (8), and the second material receiving plate is lifted to transfer the oil casing to the second grinding frame (8); the moving rack (9) transfers the oil casing out of the second grinding rack (8).

2. The pipe material turning wire production line of claim 1, wherein: the material feeding frame (1) is provided with a material shifting hook used for conveying a single oil casing, and the oil casing is shifted to the material feeding frame (1) by the material shifting hook.

3. The pipe material turning wire production line of claim 2, wherein: the feeding frame (1) comprises a guide frame (101) which is obliquely arranged, and a rotating shaft (102) is arranged on the guide frame (101); the material shifting hook comprises an inclined plate (103), one end of the inclined plate (103) is fixed on the rotating shaft (102) and extends to form a baffle (105), and the other end of the inclined plate (103) is provided with an inclined hook (104).

4. The pipe material turning wire production line of claim 3, wherein: a first material stop (207), a waiting V-shaped frame (208) and a first feeding roller (213) are sequentially arranged on the first threading machine auxiliary machine (2); the first silk turning machine auxiliary machine (2) is further provided with a first material shifting plate (203), the first material shifting plate (203) shifts the oil sleeve to the waiting V-shaped frame (208) from the position of the first material stopper (207), and/or the oil sleeve is shifted to the first feeding roller (213) from the waiting V-shaped frame (208).

5. The pipe material turning wire production line of claim 4, wherein: a first lifting carrier roller (210) is further arranged on the first end threading station, the first lifting carrier roller (210) is connected with a lifting driving device, and the lifting driving device drives the first lifting carrier roller (210) to ascend or descend; and a press roller (212) is arranged on the first lifting carrier roller (210), and the press roller (212) is pressed on the oil sleeve by a rotating plate (211) in a rotating motion.

6. The pipe material turning wire production line of claim 5, wherein: the discharging pipe of the first transition frame (3) is lower than the feeding end, and the discharging end of the first transition frame (3) is provided with a second material blocking device (301).

7. The pipe material turning wire production line of claim 6, wherein: a first rotating roller set is arranged on the first grinding frame (4), and a second rotating roller set is arranged on the second grinding frame (8); the first grinding frame (4) and the second grinding frame (8) have the same structure.

8. The pipe material turning wire production line of claim 7, wherein: a third material blocking device (601), an aligning conveying roller (602) and a second feeding roller (603) are sequentially arranged on the second silk turning machine auxiliary machine (6); and a second material shifting plate (606) is further arranged on the second auxiliary machine (6) of the wire turning machine, and the second material shifting plate (606) shifts the oil sleeve to the aligning conveying roller (602) from the third material blocking device (601) and/or shifts the oil sleeve to the second feeding roller (603) from the aligning conveying roller (602).

9. The pipe material turning wire production line of claim 8, wherein: the aligning conveying roller (602) is connected with a motor speed reducer; a second lifting carrier roller (605) is further arranged on the second wire end turning station, the second lifting carrier roller (605) is connected with a lifting driving device, and the lifting driving device drives the second lifting carrier roller (605) to ascend or descend; and a press roller is arranged on the second lifting carrier roller (605), and the press roller is pressed on the oil sleeve by a rotating plate in a rotating motion.

10. The pipe material turning wire production line of claim 9, wherein: the gantry conveying frame (7) is provided with a first gantry trolley (701) and a second gantry trolley (702), a linear motor is arranged on the first gantry trolley (701), the linear motor provides power for the second threading station to push the oil casing to a specified station, a clamping hand is arranged on the first gantry trolley (701), and the oil casing is clamped by the clamping hand to be taken out of the machine tool; magnetic grid rulers are arranged on the first gantry trolley (701) and the second gantry trolley (702).

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