CN105032934A - Irregular pipe cold-rolling forming device - Google Patents

Abstract

Provided is an irregular pipe cold-rolling forming device. An upper roller of the irregular pipe cold-rolling forming device is connected with a lower pressing member of the upper roller, a lower roller is connected with an upper pressing member of the lower roller, the irregular pipe cold-rolling forming device has the capacity of automatically adjusting the positions of the rollers under the driving effects of the lower pressing member of the upper roller and the upper pressing member of the lower roller, the center of the roller gap between the upper roller and the lower roller can be further kept unchanged through opposite synchronous movements of the upper roller and the lower roller, the adjustment of the positions of the rollers is quantized through a scale, and accordingly the adjustment accuracy of the positions of the rollers is ensured. A left vertical roller and a right vertical roller matched with the upper roller and the lower roller are installed in a singly-designed vertical roller installing box, and the moving distance of the vertical roller installing box is quantized through the scale, so that the position adjustment accuracy of the left vertical roller and the right vertical roller can be directly ensured. The whole roller position adjustment process can be completely unaffected by human factors and depends on human experiences no longer, and production cost is further reduced while the rolling accuracy of irregular pipes is improved.

Description

A special-shaped tube cold rolling forming equipment

technical field

The invention belongs to the technical field of special-shaped pipe forming, and in particular relates to a special-shaped pipe cold rolling forming equipment.

Background technique

With the continuous development of industrial technology, the demand for special-shaped tubes in various fields is increasing, and the manufacturing and processing of special-shaped tubes also has an important impact on other fields.

At this stage, there are mainly two manufacturing and processing methods for special-shaped pipes. One is to produce special-shaped pipes by cold drawing forming, that is, cold drawing forming method, and the other is to produce special-shaped pipes by cold rolling forming, that is, cold rolling forming method . For the cold drawing method, its production efficiency is low and the process is complicated, so it is becoming more and more difficult to meet the needs of special-shaped pipes in various fields.

For the cold rolling forming method, compared with the cold rolling forming method, the production efficiency is significantly improved, and the process flow is simpler than the cold rolling forming method. However, the traditional cold rolling forming equipment used in the cold rolling forming method is still Immature, once the size of the special-shaped pipe to be processed changes, it is necessary to adjust the position of the rolls in the traditional cold rolling forming equipment, and this adjustment can only be done manually, including the adjustment of the distance between the upper and lower rolls. It is necessary to raise the lower roll. The raising process is realized by manually adding standard shims, and the raising distance is determined by combining the thickness of several standard shims, so as to realize the distance between the upper and lower rolls. The adjustment of the matching vertical roller spacing also needs to be adjusted, and the adjustment of the vertical roller spacing is all based on personal experience. It is conceivable that whether it is the upper and lower rollers or the matching vertical rollers, the spacing adjustment accuracy is seriously affected by human factors. Influence, and then lead to the adjustment accuracy of the gap between the rollers is very unstable, often leads to the result that the processing accuracy of the special-shaped tube is too low, which seriously affects the qualified rate of the finished product of the special-shaped tube. Furthermore, because the adjustment of the position of the rolls relies too much on human experience, it takes a lot of time and labor costs to train a certain number of technical personnel, and also increases the production cost of special-shaped pipes.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention provides a special-shaped pipe cold rolling forming equipment, the adjustment of the roll position is not affected by human factors, and the adjustment accuracy is high, the adjustment process saves time and effort, and can effectively reduce the production cost of the special-shaped pipe .

In order to achieve the above object, the present invention adopts the following technical scheme: a special-shaped tube cold rolling forming equipment, including a roll mechanism and a roll driving mechanism, and its characteristics are: the roll mechanism includes a rack, an upper roll, a lower roll, an upper roll and a lower roll Pressing member, lower roller upper pressing member, left vertical roller and right vertical roller, said roller driving mechanism includes main drive motor, reducer and gearbox; said upper roller pressing member is installed on the top of the frame, said upper roller It is located under the lower pressing member of the upper roll, and a bearing is set on the roller shaft of the upper roll, and a bearing seat is set on the outer side of the bearing, and the pressing member of the upper roll is connected with the upper roll through the bearing seat; the upper pressing member of the lower roll Installed at the bottom of the frame, the lower roll is located above the upper pressing member of the lower roll, bearings are set on the roller shaft of the lower roll, and bearing seats are set outside the bearings, and the upper pressing member of the lower roll passes through the bearing seat and the lower roll. Connected; the upper roll and the lower roll are symmetrically arranged, and a transverse roll gap is left between the upper roll and the lower roll, and the left vertical roll and the right vertical roll are symmetrically arranged on the frames on both sides of the horizontal roll gap; The main drive motor is connected with the reducer, the reducer is connected with the gearbox, and the gearbox is connected with one end of the roller shaft of the upper roll and the lower roll through a universal coupling.

A vertical roller installation box is arranged between the left vertical roller, the right vertical roller and the frame, and the left vertical roller and the right vertical roller are all installed in the vertical roller installation box; between the vertical roller installation box and the frame, a The distance adjusting bolt is engraved with the first scale on the outer surface of the vertical roller mounting box.

The upper roller pressing member includes a pressing driving motor, a first worm gear transmission mechanism and a pressing jack rod, the pressing driving motor is connected with the worm of the first worm and worm gear transmission mechanism through a coupling, and the first The worm gear of the worm and worm gear mechanism is sleeved on the push-down push rod, and the push-down push rod is threadedly connected with the worm wheel of the first worm and worm gear drive mechanism; a first encoder is connected to the worm end of the first worm and worm gear drive mechanism .

A first additional support rod is connected to the top of the push-down push rod, and a first dustproof protective cover is arranged on the top of the first additional support rod; a second mark is vertically arranged on the shell of the first worm gear transmission mechanism. A scale is engraved on the first dustproof protection cover with a pointing line corresponding to the second scale.

The upper pressing member of the lower roll includes an upper pressing driving motor, a second worm gear transmission mechanism and an upper pressing mandrel, and the upper pressing driving motor is connected with the worm of the second worm and worm gear transmission mechanism through a shaft coupling. The worm gear of the worm and worm gear mechanism is set on the upper pressing rod, and the upper pressing rod and the worm gear of the second worm and worm gear mechanism are connected by threads; device.

A second additional support rod is connected to the bottom end of the upper pressing rod, and a second dustproof protective cover is arranged at the bottom end of the second additional support rod; As for the three scales, a directional marking line is engraved on the second dustproof protective cover, and the directional marking line corresponds to the third scale bar.

Balance springs are arranged between the frame and the bearing seat of the upper roll, and between the frame and the bearing seat of the lower roll.

The upper roll pressing members are divided into two groups, and the two groups of upper rolling pressing members are connected in series.

The upper pressing members of the lower rolls are divided into two groups, and the upper pressing members of the lower rolls of the two groups are connected in series.

Beneficial effects of the present invention:

Compared with the prior art, the present invention has the ability to automatically adjust the position of the rolls. Through the synchronous movement of the upper and lower rolls, it can also ensure that the center of the roll gap between the two rolls remains unchanged, and the position of the rolls can be adjusted by the scale. Quantify the adjustment of the roller position to ensure the adjustment accuracy of the roll position; the matching left and right vertical rollers are installed in the separately designed vertical roller installation box, and the moving distance of the vertical roller installation box is quantified by the scale. Ensure the position adjustment accuracy of the left and right vertical rolls; during the entire roll position adjustment process, it is completely free from the influence of human factors and no longer depends on human experience. Since the adjustment of the roll position can be completely quantified by the scale, in While improving the rolling precision of the special-shaped tube, the production cost is also reduced.

Description of drawings

Fig. 1 is a kind of special-shaped pipe cold rolling forming equipment structural representation of the present invention;

Fig. 2 is the right side view of Fig. 1 (unconnected roller driving mechanism);

Fig. 3 is the top view of Fig. 1 (unconnected roller driving mechanism);

Figure 4 is a schematic diagram of the assembly of the left vertical roller and the vertical roller mounting box;

Figure 5 is a schematic diagram of the assembly of the right vertical roller and the vertical roller mounting box;

Fig. 6 is a structural schematic diagram of the pressing member of the upper roll;

Fig. 7 is a schematic structural view of the upper pressing member of the lower roll;

Fig. 8 is the concrete layout drawing of embodiment;

In the figure, 1—frame, 2—upper roll, 3—lower roll, 4—left vertical roll, 5—right vertical roll, 6—main drive motor, 7—reducer, 8—gearbox, 9—universal Coupling, 10—vertical roller installation box, 11—distance adjustment bolt, 12—first scale, 13—down-pressing drive motor, 14—first worm gear transmission mechanism, 15—down-pressing ejector rod, 16—the first An additional support rod, 17—the first dust-proof protection cover, 18—the second scale, 19—the driving motor for pressing up, 20—the second worm gear transmission mechanism, 21—the pushing rod for pressing up, 22—the second additional support Rod, 23—the second dustproof protection cover, 24—the third scale, 25—balance spring, 26—the first encoder, 27—the second encoder, 28—the Turkish head.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 to 7, a special-shaped tube cold rolling forming equipment includes a roll mechanism and a roll driving mechanism. The roll mechanism includes a frame 1, an upper roll 2, a lower roll 3, an upper roll pressing member, and a lower roll The upper pressing member, the left vertical roller 4 and the right vertical roller 5, the roll drive mechanism includes a main drive motor 6, a reducer 7 and a gearbox 8; the upper roller pressing member is installed on the top of the frame 1, and the upper roller The roll 2 is located below the lower pressing member of the upper roll, and a bearing is set on the roller shaft of the upper roll 2, and a bearing seat is set on the outer side of the bearing, and the lower pressing member of the upper roll is connected with the upper roll 2 through a bearing seat; The roll upper pressing member is installed at the bottom of the frame 1, the lower roll 3 is located above the lower rolling upper pressing member, the roller shaft of the lower roll 3 is provided with a bearing, and the outer side of the bearing is provided with a bearing housing. The component is connected with the lower roll 3 through the bearing seat; the upper roll 2 and the lower roll 3 are symmetrically arranged, and a transverse roll gap is left between the upper roll 2 and the lower roll 3, and the left vertical roll 4 and the right vertical roll 5 are symmetrical Set on the frame 1 on both sides of the transverse roll gap; the main drive motor 6 is connected with the reducer 7, the reducer 7 is connected with the gearbox 8, and the gearbox 8 is connected with the upper roller 2 and the lower roller through the universal coupling 9 One end of the roller shaft of the roll 3 is connected.

Between the left vertical roller 4, the right vertical roller 5 and the frame 1, a vertical roller installation box 10 is arranged, and the left vertical roller 4 and the right vertical roller 5 are all installed in the vertical roller installation box 10; 10 and frame 1 are connected with adjustable distance bolt 11, and the first scale 12 is engraved on the outer surface of vertical roller installation box 10.

The upper roll pressing member comprises a pressing driving motor 13, a first worm gear transmission mechanism 14 and a pressing jack rod 15, and the pressing driving motor 13 is connected with the worm of the first worm gear transmission mechanism 14 through a coupling , the worm gear of the first worm and worm gear mechanism 14 is sleeved on the push-down push rod 15, and the push rod 15 is threadedly connected with the worm gear of the first worm and worm gear drive mechanism 14; A first encoder 26 is connected to the end of the worm.

A first additional strut 16 is connected to the top of the push-down push rod 15, and a first dustproof protection cover 17 is provided at the top of the first additional strut 16; A second scale 18 is provided, and a directional marking is engraved on the first dustproof protection cover 17 , and the directional marking corresponds to the second scale 18 .

The upper pressing member of the lower roll includes an upper pressing drive motor 19, a second worm gear transmission mechanism 20 and an upper pressing mandrel 21, and the upper pressure driving motor 19 is connected with the worm of the second worm gear transmission mechanism 20 through a coupling , the worm wheel of the second worm and worm gear mechanism 20 is sleeved on the upper pressing mandrel 21, and the upper pressing mandrel 21 and the worm wheel of the second worm and worm gearing mechanism 20 are connected by threads; The end of the worm screw of 20 is connected with a second encoder 27 .

A second additional support rod 22 is connected to the bottom end of the upper pressing rod 21, and a second dustproof protective cover 23 is arranged at the bottom end of the second additional support rod 22; A third scale 24 is arranged vertically, and a pointing line is engraved on the second dustproof protection cover 23 , and the pointing line corresponds to the third scale 24 .

Balance springs 25 are arranged between the bearing seats of the frame 1 and the upper roll 2, and between the bearing seats of the frame 1 and the lower roll 3, and the rolling force of the upper roll 2 and the lower roll 3 can be improved by the balance spring 25. The smoothness of the process can be improved, thereby improving the rolling accuracy of special-shaped pipes.

The upper roll pressing members are divided into two groups, and the two groups of upper rolling pressing members are connected in series.

The upper pressing members of the lower rolls are divided into two groups, and the upper pressing members of the lower rolls of the two groups are connected in series.

Below in conjunction with accompanying drawing, the one-time use process of the present invention is illustrated:

As shown in Figure 8, a total of 8 sets of special-shaped tube cold rolling forming equipment are prepared in this embodiment, and 8 sets of forming equipment are arranged in a row. Every 4 sets of forming equipment share a main drive motor 6 and a reducer 7, and every 4 sets The gearboxes 8 of the forming equipment are connected in series through a coupling, and at the same time, a Turkish head 28 is installed at the outlet end of the eighth set of forming equipment, through the step-by-step cold rolling forming from the first set of forming equipment to the eighth set of forming equipment process, the processing of special-shaped tubes can be realized. According to the difficulty of deforming the special-shaped pipe, the number of special-shaped pipe cold rolling forming equipment can be increased or decreased as appropriate.

When the pipe size of the special-shaped pipe to be processed changes, it is necessary to adjust the distance between the upper and lower rolls and the distance between the left and right vertical rollers of the special-shaped pipe cold rolling forming equipment. Take one of the special-shaped pipe cold rolling forming equipment as an example , explain the process of adjusting the gap between the rollers.

Adjust the distance between the upper roll 2 and the lower roll 3. By starting the pressing drive motor 13 of the upper roller pressing member, the worm screw of the first worm and worm gear transmission mechanism 14 is driven to rotate, and then the worm wheel is driven to rotate, and the rotation of the worm wheel drives the pressing push rod 15 to move upward or downward, and its moving distance can be It can be read directly through the second scale 18 and can be directly measured by the first encoder 26. By precisely controlling the moving distance of the lower push rod 15, the precise control of the moving distance of the upper roll 2 can be realized; The upper pressure drive motor 19 of the roller upper pressure member drives the worm of the second worm gear transmission mechanism 20 to rotate, and then drives the worm wheel to rotate, and the rotation of the worm wheel drives the upper pressure mandrel 21 to move downward or upward, and its moving distance can be directly passed through the second worm wheel. The three scales 24 are read out and can be directly measured by the second encoder 27. By precisely controlling the moving distance of the upper pressing mandrel 21, the precise control of the moving distance of the lower roll 3 is realized. In order to ensure that the axial center of the special-shaped pipe will not change due to changes in size, it is only necessary to ensure that the moving distances of the upper roll 2 and the lower roll 3 are equal and in opposite directions, so as to realize the gap between the upper roll 2 and the lower roll 3. The center of the roll gap is always the same.

Adjust the spacing between the left vertical roller 4 and the right vertical roller 5. The vertical roller installation box 10 is controlled to move forward or backward in the frame 1 by turning the distance adjustment bolt 11. The forward or backward distance of the vertical roller installation box 10 can be read directly through the first scale 12. By precisely controlling the vertical roller installation The forward or backward distance of the cassette 10 realizes the precise control of the moving distance of the left vertical roller 4 or the right vertical roller 5. In order to ensure that the axial center of the special-shaped pipe remains unchanged, it is only necessary to ensure that the moving distances of the left vertical roller 4 and the right vertical roller 5 are equal and opposite in direction, so as to realize the center of the roll gap between the left vertical roller 4 and the right vertical roller 5 Always the same.

It can be seen from the adjustment process of the distance between the rolls that the special-shaped tube cold rolling forming equipment of the present invention has the ability to automatically adjust the position of the rolls, and through the synchronous movement of the upper and lower rolls, it can ensure that the center of the roll gap between the two rolls remains unchanged. , the adjustment of the roll position is quantified through the scale, which ensures the adjustment accuracy of the roll position. The matching left and right vertical rollers are installed in the separately designed vertical roller installation box 10, and the moving distance of the vertical roller installation box 10 is quantified by the scale, which directly ensures the position adjustment accuracy of the left and right vertical rollers. During the entire roll position (roller spacing) adjustment process, it is completely free from the influence of human factors and no longer relies on human experience. Since the adjustment of the roll position is completely quantified by the scale, it is important to improve the rolling accuracy of special-shaped tubes. At the same time, the production cost is also reduced.

The solutions in the embodiments are not intended to limit the scope of patent protection of the present invention, and all equivalent implementations or changes that do not deviate from the present invention are included in the patent scope of this case.

Claims (9)

1. A special-shaped tube cold rolling forming equipment, comprising a roll mechanism and a roll drive mechanism, characterized in that: the roll mechanism includes a frame, an upper roll, a lower roll, an upper roll pressing member, a lower roll pressing member, a left vertical roll and right vertical roll, the roll drive mechanism includes a main drive motor, a speed reducer and a gearbox; A bearing is set on the roller shaft of the upper roll, and a bearing seat is set on the outer side of the bearing. The lower pressing member of the upper roll is connected with the upper roll through the bearing seat; the upper pressing member of the lower roll is installed at the bottom of the frame, and the lower rolling member Located above the upper pressing member of the lower roll, a bearing is set on the roller shaft of the lower roll, and a bearing seat is set outside the bearing, and the upper pressing member of the lower roll is connected with the lower roll through the bearing seat; the upper roll is symmetrical to the lower roll Setting, there is a transverse roll gap between the upper roll and the lower roll, and the left and right vertical rolls are symmetrically arranged on the frames on both sides of the transverse roll gap; the main drive motor is connected with the reducer, and the reducer It is connected with the gearbox, and the gearbox is connected with one end of the roller shaft of the upper roll and the lower roll through a universal coupling. 2. A special-shaped tube cold rolling forming equipment according to claim 1, characterized in that: a vertical roller installation box is arranged between the left vertical roller, the right vertical roller and the frame, the left vertical roller, the right vertical roller The rollers are installed in the vertical roller installation box; the distance adjustment bolt is connected between the vertical roller installation box and the frame, and the first scale is engraved on the outer surface of the vertical roller installation box. 3. A special-shaped tube cold rolling forming equipment according to claim 1, characterized in that: said upper roll pressing member comprises a pressing driving motor, a first worm gear transmission mechanism and a pressing ejector rod, said pressing The drive motor is connected to the worm of the first worm and worm gear mechanism through a coupling, and the worm gear of the first worm and worm gear mechanism is sleeved on the push-down push rod, and the push-down push rod and the worm wheel of the first worm and worm gear mechanism pass through Threaded connection; a first encoder is connected to the end of the worm of the first worm gear transmission mechanism. 4. A special-shaped tube cold-rolled forming equipment according to claim 3, characterized in that: a first additional strut is connected to the top of the push-down push rod, and a first dust-proof rod is arranged on the top of the first additional strut. Protective cover: a second scale is vertically arranged on the shell of the first worm and worm gear mechanism, and a directional marking is engraved on the first dustproof protective cover, and the directional marking is in line with the second scale Corresponding. 5. A special-shaped tube cold rolling forming equipment according to claim 1, characterized in that: said lower roll pressing member comprises a pressing drive motor, a second worm and worm gear transmission mechanism and a pressing mandrel, said pressing The drive motor is connected to the worm of the second worm and worm gear mechanism through a coupling, and the worm gear of the second worm and worm gear mechanism is sleeved on the upper pressing jack rod, and the upper pressing jack rod and the worm gear of the second worm and worm gear mechanism Through screw connection; a second encoder is connected to the end of the worm of the second worm gear transmission mechanism. 6. The special-shaped tube cold rolling forming equipment according to claim 5, characterized in that: a second additional support rod is connected to the bottom end of the upper pressing rod, and a second additional support rod is arranged at the bottom end of the second additional support rod. Dust-proof protective cover; a third scale is vertically arranged on the shell of the second worm and worm gear mechanism, and a directional marking is engraved on the second dust-proof protective cover, and the directional marking is the same as the third marking corresponding to the scale. 7. A special-shaped tube cold-rolled forming equipment according to claim 1, characterized in that: a balance is set between the frame and the bearing seat of the upper roll, and between the frame and the bearing seat of the lower roll. spring. 8 . The special-shaped tube cold rolling forming equipment according to claim 1 , characterized in that: the upper roller pressing members are in two groups, and the two groups of upper roller pressing members are connected in series. 9. The special-shaped tube cold rolling forming equipment according to claim 1, characterized in that: the upper pressing members of the lower rolls are in two groups, and the upper pressing members of the lower rolls are connected in series.