CN109047401B

CN109047401B - Numerical control complete pipe making machine

Info

Publication number: CN109047401B
Application number: CN201810584221.6A
Authority: CN
Inventors: 张巍; 张建
Original assignee: Jiangsu Zhonghai Heavy Machine Co ltd
Current assignee: Jiangsu Zhonghai Heavy Machine Co ltd
Priority date: 2018-06-08
Filing date: 2018-06-08
Publication date: 2021-04-06
Anticipated expiration: 2038-06-08
Also published as: CN109047401A

Abstract

The present invention provides a numerical control pipe mill set characterized in that the pipe mill has side roll holders and a sleeve which can be lowered or raised in a shaft, and a machine for manufacturing a pipe welding material for a roll installed between the holders is fixed and supported around the side roll holders to manufacture a desired metal pipe so that the metal pipe meets a desired industrial requirement, and a roll core shaft in which an outer diameter of the sleeve is installed, and an inner diameter of the sleeve forms a key groove, and by being installed to the sleeve and the shaft to move linearly up and down, an inner diameter prepared for the side roll station is provided, the sleeve can be prevented from being arbitrarily rotated, and the sleeve can stably manufacture the desired metal pipe.

Description

Numerical control complete pipe making machine

Technical Field

The invention relates to the technical field of pipe making machines, in particular to a numerical control complete pipe making machine.

Background

As is well known, the existing pipe-making equipment has two types, namely a plate rolling machine and a bending machine,

each of these two models has drawbacks and deficiencies. The defects and shortcomings of the plate bending machine are as follows: it can not be rolled to be small

The diameter of the slender cylinder is 30mm, the diameter is 800mm, the rolling length of the slender cylinder cannot exceed 3000mm, and the straight edge with the thickness 2.5 times of the plate thickness is arranged at the joint during rolling, so the requirement cannot be met; the defects and shortcomings of the bending machine are as follows: it is limited by throat and nominal pressure, and can only be used for folding thin-wall and small-diameter circular tubes, such as electric power pole, sign pole and street lamp pole. Therefore, in order to manufacture the oil (gas) conveying pipe fitting with moderate diameter, thick wall thickness and long length as much as possible, a large-scale special pipe manufacturing device is required to be designed. And once the metal sense generates offset or has an offset angle in the transmission process of the large-tonnage pipe making machine, the metal pipes cut by the cutting machine are irregular, and the product quality is influenced.

As another numerical control complete pipe making machine, pipe making machine includes pipe making machine main part, cutting machine, pay-off frame and deviation correcting device, pipe making machine main part passes through the pay-off frame with the cutting machine main part and is connected, installs deviation correcting device on the pay-off frame, its characterized in that: the deviation correcting device comprises a vertical deviation correcting device and a transverse deviation correcting device, the clamping device is sleeved on the metal pipe, the bottom of the clamping device is arranged above the vertical deviation correcting device, and the transverse deviation correcting device is arranged below the vertical deviation correcting device. The invention has the beneficial effects that: the deviation correcting device is added in the numerical control complete pipe making machine, so that the straightness of the large-span metal pipe is ensured, and the metal pipe does not generate horizontal or vertical offset and a rotating angle in the conveying process.

For example, an apparatus and method for making a flexible metal tube, the apparatus comprising: system for making

The pipe making machine comprises a pipe making machine main body, a cutting machine main body, a suspended portal frame and a PLC control cabinet, wherein the pipe making machine main body is connected with the cutting machine main body, and the cutting machine main body is connected with the suspended portal frame; the tuber main part includes tuber, no material alarm device, raw materials connecting device and charging tray support of shutting down, set up no material alarm device of shutting down on the charging tray support, raw materials connecting device with the input of tuber is connected, the cutting machine main part includes cutting machine and first cylinder, first cylinder with the PLC switch board is connected, the cutting machine is connected with first cylinder, set up the upset track on the unsettled portal frame. According to the technical scheme, the straightness of the metal pipe in the transmission process is not adjusted by the pipe making machine, and once the metal sensor generates offset or has an offset angle in the transmission process, the metal pipe cut by the cutting machine is irregular, so that the product quality is influenced.

The conventional side roller has the following problems: the height of the fixed roller is used for rotating the sleeve to make the sleeve more stable later

The roll change situation is a problem in that frequent multi-product small-volume production of the sleeve causes instability of the mounting state of the roll according to the outer diameter of the tube and every high cycle set with changing the sleeve in which the roll is mounted. Furthermore, after the continuous use of the tube-making machine, the vibrations generated are transmitted

The anchoring force transmitted to the roller, anchor bolt and sleeve weakens the indication of vibration due to continuous transmission

Vibration and problems caused as a direction in which the sleeve rotates.

Disclosure of Invention

In order to solve the problems of side rollers in the prior art, the invention provides a numerical control complete pipe making machine, which comprises a pipe making machine main body, a cutting machine, a feeding frame, a deviation correcting device, a side roller support, a clamping device, an anchoring bolt, a roller and a machine base, wherein the pipe making machine main body is connected with the cutting machine main body through the feeding frame, and the deviation correcting device is arranged on the feeding frame; the deviation correcting device comprises a vertical deviation correcting device and a transverse deviation correcting device, the clamping device is sleeved on the metal pipe, the bottom of the clamping device is arranged above the vertical deviation correcting device, and the transverse deviation correcting device is arranged below the vertical deviation correcting device; side roll supports are fixed and supported on a roller barrel which is arranged between the supports, a sleeve barrel is used for fixing a shaft on a lower block, the roller barrel comprises a machine for manufacturing pipeline welding materials and a component for manufacturing a metal pipe, a bent product is manufactured without using the welding materials, a transmission material falls or descends on the shaft and is arranged, and the roller barrel is sleeved on the outer surface of the sleeve barrel; a side roller support of a key groove is formed at the inner diameter of the shaft sleeve, and the sleeve and the shaft do vertical linear motion; the second shaft (40) as a fixing pin having a third female thread (44) formed on the top thereof when the means engaged with the fixing bolt (27) is stopped, and a sixth male thread (43) below the fixing bolt (27) is fastened to the third female thread (44) of the second shaft (40);

the clamping device comprises a transverse roller set, a vertical roller set and a support frame, the support frame is fixed above the vertical deviation correcting device, and the transverse roller set and the vertical roller set are fixed on the support frame through rotating shafts;

the second fixing nut (41) forms a protrusion (42) at a lower portion, and a sixth male screw (43) is formed on an outer diameter, and each bolt upper portion (45) of a hexagonal or rectangular shape is formed in an upper end and a third female screw (44), and the third female screw (44) is formed inside; the lower part of a second fixing nut (41) in a circulation hole (26c) of the sleeve (26) is inserted upwards, and a fifth external thread (40a) of a second shaft (40) is screwed into a sixth external thread (43) exposed from the upper side of the sleeve (26) in sequence, wherein the fifth external thread (40a) of the second shaft is screwed into the second fixing nut (41) and the second nut (30), and a washer (31) and a third internal thread (44) of a third nut (32);

the side roller bracket screws a second fixing nut (41) and a second shaft (40) in 3 screws, forms a female thread in the center of the second fixing nut (41), forms a fifth male thread (40a) at the upper end of the second shaft (40), and screws a third female thread (44) of the second fixing nut (41) into the fifth male thread (40 a).

Optionally, a key (29) is mounted on one side of the second shaft (40), a keyway (26d) is formed on the inside of the sleeve (26), and the second shaft (40) and the key (29) slide into the keyway (26 d).

Alternatively, the stands are provided therebetween with a welding to the material and the work to produce a product such as a metal pipe forming machine, the product is bent by bending rollers, the material is conveyed at the bottom of the lower block, mounted to a side roller frame involved in supporting a fixed axis and a roller shaft raised or lowered in a roll cartridge with a shaft, but an outer diameter of the sleeve is mounted, a key groove and the shaft, the key is formed at an inner diameter of the sleeve, the sleeve and the shaft can move only in an up-down direction, and the sleeve is prevented from rotating, so that the metal pipe can be stably manufactured.

Optionally, the support frame comprises a bottom plate, a first support frame and a second support frame, the bottom plate is placed above the vertical deviation correcting device, the first support frame and the second support frame are both arranged above the bottom plate and are oppositely placed, the first support frame is provided with a vertical roller set, and the second support frame is provided with a transverse roller set; the first support frame is composed of a top plate, side plates and a first support plate, the two side plates are arranged oppositely, the first support plate is connected with any position in the middle of the side plates of the two side plates, the top ends of the two side plates are provided with the top plate, and the top plate and the first support plate are parallel to each other.

Optionally, the vertical roller set comprises two vertical rollers, the vertical rollers are vertically arranged between the top plate and the first supporting plate, the through holes are formed in the positions of the vertical rollers at the mounting positions of the top plate and the first supporting plate, and the rotating shafts of the vertical rollers penetrate through the through holes and are fixedly connected through bearings.

Alternatively, the roller set is assembled at a lower portion of the sleeve (26), there are shafts in the roller set, a roller ring (24) is inserted in a gap between the fourth bearing (21b) and the third bearing (21a), and a gap between the fourth bearing (21b) and the third bearing (21a) is maintained more accurately, and the rollers (23) are gathered more accurately, the second shaft (40) forms a third female screw thread (44) in a vertical direction at an upper portion, and the key (29) is integrally formed at one side.

Optionally, the side surfaces of the carrier rollers of the vertical roller and the horizontal roller are waist drum-shaped, and the radian of an arc line at the middle waist drum of the carrier roller is the same as that of the circumferential surface of the fixed metal pipe.

The invention has the following effects: when the fixing nut and the roller are coupled to the side portion in which the rotation is restrained and which moves only in a straight line to the up and down direction and the key groove mounted on the sleeve is coupled to the side portion, more stably rotates, being transmitted through the sleeve and the shaft of the tube. In particular, since the moving force acts on the rotational force, it rotates with the continuous movement of the tube on the sleeve, and it is prevented in advance that the bending forming operation of the rollers can be performed accurately. Furthermore, by conventional rotation, while the sleeve itself rotates with respect to the roller's height rotation, and it is supported up and down inside the roller's sleeve built on the shaft, there is much damping, but its only rotation makes it possible to realize the second fixing nut according to the invention, to which the side roller support is only connected at the upper part, thus facilitating the roller's height setting. Moreover, the conventional need to accommodate large tools of each head width necessitates rotating the sleeve itself formed at the upper end of the sleeve. For the side roll holders of the invention, a somewhat smaller portable tool wrench or the like is usually used, which is very easy to maintain and repair.

Drawings

Fig. 1 is a schematic view of a conventional side roll stand of the present application.

FIG. 2A cross-sectional view of a side roll support of the present application

FIG. 3A cross-sectional view of various embodiments of a side roller bracket of the present application

Wherein: 1-lower block; 2-axis; 2 a-a first external thread; 3 a-a first bearing, 3 b-a second bearing; 4-fixing the nut; 5-roller; 6-a collar; 7-a sleeve; 7 a-lower projection; 7 b-a second external thread; 7 c-upper part of sleeve; 7 d-first internal thread; 8-an anchor bolt; 8 a-a third external thread; 9-pin; 20-a first shaft; 40-a second axis; 20 a-a second internal thread; 21 a-a third bearing; 21 b-a fourth bearing; 22-a first fixing nut; 41-a second fixing nut; 23-a roller; 24-a roll collar; 25-a collar; 26-a sleeve; 26 a-lower projection; 26 b-a fourth external thread; 26 c-flow-through holes; 26 d-keyway; 27-anchor bolts; 27 a-downstream water screw; 27 b-ring; 27 c-upper external thread; 27 d-bolt top; 28-pin; a 29-bond; 30-a second nut; 32-a third nut; 31-a gasket; 40 a-a fifth external thread; 42-a protrusion; 43-a sixth external thread; 44-a third internal thread; 45-bolt top.

Detailed Description

The present invention is directed to a numerical control pipe manufacturing kit for axially supporting rollers outside a sleeve and arranging an axis inside the sleeve and a side roller bracket with a shaft fixed to a lower-to-lower pin of the present invention

The purpose is to provide a bulge part or a side roller bracket falling by the fastening force of a nut of a bolt, restrain the rotation of an anchor bolt and stably fix and mount a sleeve shaft. The sleeve is released from the anchor bolt and tightened, the anchor bolt is screwed into the upper portion of the sleeve and the upper portion of the shaft, and the sleeve is not rotated on the shaft and the shaft longitudinally slides the nut contained in the shaft longitudinally of the keyway formed in the inner surface of the sleeve.

The foregoing of the invention may be more clearly understood as illustrated in the accompanying drawings.

Fig. 2 shows a cross-sectional view of a side roller support according to the invention. Fig. 3 is a sectional view showing a different embodiment of a side roller support according to the present invention.

As shown in fig. 2, in the conventional side roller stand according to the present invention, as the combination structure of the shaft 2 and the sleeve 26 is improved, the first shaft 20 is inserted into the lower block 1, and the roller 23, which is the same in structure and configuration as the pin 9 and establishes the outer diameter lower portion of the sleeve 26, is fixedly inserted with detailed description in the same manner as the key is omitted.

The roller 23 is journalled in the lower part of the sleeve 26. The roller ring 24 is inserted in the space between the lower fourth bearing 21b and the upper third bearing 21a, and the gap between the fourth bearing 21b and the third bearing 21a is more accurately maintained, and the rollers 23 are more accurately gathered together. The first shaft 20 forms a second female screw 20a in the vertical direction at the upper portion, and the first nut 29 is integrally formed at one side.

A flow hole 26c is bored in the center of the upper end to form a sleeve 26, a projection 26a is formed around it, a key groove 26d is formed in the inner periphery, and it is engaged with a key 29 of the first shaft 20.

In the second internal thread 20a of the first shaft 20, the anchor bolt 27 is tightened. The ring 27b is inserted between the stops of the anchor bolts 27 and the pins 28 are driven in the ring 27b and anchor bolts 27 and ring 27b, and the outer thread 27a of the lower group is screwed on the basis of the ring 27b in the second inner thread 20a of the first shaft 20, and it is pushed to the upper end through the flow hole 26c of the sleeve and the upper outer thread 27c tightens the second nut 30, the third nut 32 and the washer 31.

The upper end portion of the anchor bolt 27 forms a hexagon or a rectangle of each head 27d, and is rotated on the tool.

As described above, the activated state of an embodiment of a side roller bracket configured according to the present invention is shown. When the height of the roller 23 is controlled, the second and

third nuts

30, 32 are loosened, and if the anchor bolt 27 is rotated as if after screwing the external thread 27a of the anchor bolt 27 and the second internal thread 20a of the first shaft 20, the anchor bolt 27 and the ring 27b accompany and are up and down or lowered, but the anchor bolt 27 and the ring 27b are lowered gradually by the sleeve 26, and the roller 23 mounted on the sleeve 26 is lowered along with it.

In contrast, when the roller 23 is raised, the anchor bolt 27 is rotated in the opposite direction, and the anchor bolt 27 goes up and down together with the second internal thread 20a and is screwed and pushed until the ring 27b rises together with the sleeve 26.

As described above, if the height to which the second and

third nuts

30, 32 of the roller 23 are tightened after being tightened may be set at the height set by the second and

third nuts

30, 32. As described above, when the roller 23 and the sleeve 26 move up and down, the sleeve 26 does not rotate together with the key 29 and the key groove 26d and it moves linearly while sliding on the sleeve 26, the roller 23 can be stably set to a certain height, and the rotation of the sleeve 26 at the time of performing the tube roll bending forming operation can be prevented and performed at the same time.

Fig. 3 shows another embodiment of a side roller support according to the invention and is directed to it above, and parts identical to those shown in fig. 2 are given the same reference numerals and are omitted according to the same figures.

The side roller bracket shown in the drawings tightens the second fixing nut 41 with the second shaft 40 in 3 screws. A female screw is formed in the center of the second fixing nut 41, a fifth male screw 40a is formed at the upper end of the second shaft 40, and the third female screw 44 of the second fixing nut 41 is screwed into the fifth male screw 40 a.

A key 29 is mounted on one side of the second shaft 40, a key groove 26d is formed on the inner side of the sleeve 26, and the outer side is inserted into the second shaft 40 and the key 29 is slid into the key groove 26 d. The second fixing nut 41 forms a protrusion 42 at a lower portion and a sixth male screw 43 on an outer diameter and a hexagonal or rectangular each bolt upper portion 45 is formed in an upper end and a female screw, and a third female screw 44 is formed at an inner side; the lower portion of the second fixing nut 41 in the flow hole 26c of the sleeve 26 is inserted upward, the fifth male screw 40a of the second shaft 40 is screwed into the second fixing nut 41 and the second nut 30, and the washer 31 and the third female screw 44 of the third nut 32 are screwed into the sixth male screw 43 exposed on the upper side of the sleeve 26 in this order.

As described above, the use conditions of the embodiment configured according to the present invention are as follows. When the second fixing nut 41 is rotated as the height of the roller 23 is changed, the second nut 30, the third nut 32 are loosened in advance, and if the second fixing nut 41 is rotated in a rising or falling direction, it is raised or lowered by the screw coupling of the fifth male screw 40a and the third female screw 44 and the sleeve 26, and the roller 23 of the shaft 2 is separated on the sleeve 26.

When the roller 23 is lowered by lowering its height, the second fixing nut 41 is rotated in a direction to rotate, and the fifth male screw 40a is screwed into the third female screw 44 to lower, whereby the sleeve 26 is brought down to the projection 42 of the second fixing nut 41 and the roller 23 forming a shaft is lowered into the sleeve 26.

As described above, when the sleeve 26 and the roller 23 move up and down, they move linearly up or down, but the sleeve 26 does not rotate; at the time of setting the height, although vibration or external force acts, the setting of the roller 23 is tightened and the sleeve 26 is fixed to the second fixing nut 41, the key 29 and the key groove 26d by the second nut 30, the third nut 32, and the sleeve 26 moves.

In the embodiment and another embodiment of the side roller support according to the present invention, when the roller 23 is replaced, the first fixing nut 22 is fixed in the fourth external thread 26b of the sleeve 26, and the roller 23 is replaced.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.

Claims

1. A numerical control complete pipe making machine is characterized by comprising a pipe making machine main body, a cutting machine, a feeding frame, a deviation correcting device, a side roller support, a clamping device, an anchoring bolt, a roller and a machine base, wherein the pipe making machine main body is connected with the cutting machine main body through the feeding frame, and the deviation correcting device is arranged on the feeding frame; the deviation correcting device comprises a vertical deviation correcting device and a transverse deviation correcting device, the clamping device is sleeved on the metal pipe, the bottom of the clamping device is arranged above the vertical deviation correcting device, and the transverse deviation correcting device is arranged below the vertical deviation correcting device; side roll supports are fixed and supported on a roller barrel which is arranged between the supports, a sleeve barrel is used for fixing a shaft on a lower block, the roller barrel comprises a machine for manufacturing pipeline welding materials and a component for manufacturing a metal pipe, a bent product is manufactured without using the welding materials, a transmission material falls or descends on the shaft and is arranged, and the roller barrel is sleeved on the outer surface of the sleeve barrel; a side roller support of a key groove is formed at the inner diameter of the shaft sleeve, and the sleeve and the shaft do vertical linear motion; a second shaft (40) formed with a third female thread (44) as the top of the fixing pin when the means engaged with the fixing bolt (27) is stopped, and a sixth male thread (43) below the fixing bolt (27) is fastened to the third female thread (44) of the second shaft (40);

a second fixing nut (41) forms a protrusion (42) at a lower portion, and a sixth male screw (43) is formed on an outer diameter, and each bolt upper portion (45) of a hexagonal shape or a rectangular shape is formed in an upper end and a third female screw (44), and the third female screw (44) is formed inside; the lower part of a second fixing nut (41) in a circulation hole (26c) of the sleeve (26) is inserted upwards, and a fifth external thread (40a) of a second shaft (40) is screwed into a sixth external thread (43) exposed from the upper side of the sleeve (26) in sequence, wherein the fifth external thread (40a) of the second shaft is screwed into the second fixing nut (41) and the second nut (30), and a washer (31) and a third internal thread (44) of a third nut (32);

2. The numerical control tube making machine set according to claim 1, wherein: a key (29) is mounted on one side of the second shaft (40), a key groove (26d) is formed on the inner side of the sleeve (26), and the second shaft (40) and the key (29) slide into the key groove (26 d).

3. The numerical control tube making machine set according to claim 2, wherein: the machine frame provides a welding to the material and the workpiece to produce a product such as a metal pipe forming machine, the product is bent by bending rollers, the material is conveyed at the bottom of the lower block, mounted to a side roller frame involved in supporting a fixed axis and a roller shaft which is raised or lowered in a roll cartridge with a shaft, but the outer diameter of the sleeve is mounted, a key groove and the shaft, the key is formed at the inner diameter of the sleeve, the sleeve and the shaft can move only in the up-and-down direction, and the sleeve is prevented from rotating, so that the metal pipe can be stably manufactured.

4. The numerical control tube making machine set according to claim 2, wherein: the supporting frame comprises a bottom plate, a first supporting frame and a second supporting frame, the bottom plate is placed above the vertical deviation correcting device, the first supporting frame and the second supporting frame are arranged above the bottom plate and are oppositely placed, the vertical roller set is installed on the first supporting frame, and the transverse roller set is installed on the second supporting frame; the first support frame is composed of a top plate, side plates and a first support plate, the two side plates are arranged oppositely, the first support plate is connected with any position in the middle of the side plates of the two side plates, the top ends of the two side plates are provided with the top plate, and the top plate and the first support plate are parallel to each other.

5. The numerical control tube making machine set according to claim 4, wherein: the vertical roller set is composed of two vertical rollers, the vertical rollers are vertically arranged between the top plate and the first supporting plate, through holes are formed in the positions, where the vertical rollers are arranged, of the top plate and the first supporting plate, and the rotating shafts of the vertical rollers penetrate through the through holes and are fixedly connected through bearings.

6. The numerical control tube making machine set according to claim 4, wherein: the roller set is assembled at the lower part of the sleeve (26), there are shafts in the roller set, a roller ring (24) is inserted in the interval of the fourth bearing (21b) and the third bearing (21a), and the gap between the fourth bearing (21b) and the third bearing (21a) is maintained more accurately, and the rollers (23) are gathered together more accurately, the second shaft (40) forms a third internal thread (44) in the vertical direction at the upper part, and the key (29) is integrated at one side.

7. The numerical control tube making machine set according to claim 4, wherein: the side surfaces of the carrier rollers of the vertical roller and the horizontal roller are waist drum-shaped, and the radian of an arc line at the middle waist drum of the carrier roller is the same as that of the circumferential surface of the fixed metal pipe.