CN216989336U - Pipe bending device of pipe bending machine with multiple groups of clamping dies - Google Patents

Abstract

The utility model discloses a pipe bending device of a pipe bending machine with a plurality of groups of clamping dies, and belongs to the field of pipe bending equipment. The clamping device comprises a rotating shaft, a rotating wheel assembly, a rotating arm, a clamping die assembly, a clamping die mounting frame and an adjusting rod. One end of the rotating wheel assembly and one end of the rotating arm are fixedly sleeved on the rotating shaft, the clamping die assembly is arranged on the rotating arm, and the rotating shaft is driven to rotate by the driving mechanism. The adjusting rod is fixedly arranged on the rotating arm, and the upper end surface of the adjusting rod is of an arc structure. The clamping die mounting frame comprises a mounting plate and a connecting plate, a plurality of clamping dies are mounted on the side face of the mounting plate, and the lower end face of the connecting plate is provided with a groove matched with the upper end face of the adjusting rod and supports the adjusting rod. One side of the connecting plate, which is far away from the rotating wheel component, is provided with a screw hole which penetrates through the upper end surface and the lower end surface of the connecting plate, and a screw is connected with the screw in the screw hole in a threaded manner. The utility model can adjust the integral inclination angle of the clamping die set, so that the partially inclined clamping die can be matched with the corresponding bending die to clamp the pipe fitting.

Description

Pipe bending device of pipe bending machine with multiple groups of clamping dies

Technical Field

The utility model belongs to the field of pipe bending equipment, and particularly relates to a pipe bending device of a pipe bending machine with multiple groups of clamping dies.

Background

The pipe bender is an apparatus for bending pipes, taking a common numerical control pipe bender as an example, and the working process thereof is as follows: one end of the pipe fitting is clamped through the pipe fitting clamping device, and then the pipe fitting is sent into a die of the pipe bending device to be bent. The pipe bending device generally comprises a rotating shaft, a rotating wheel and a rotating arm, wherein the rotating wheel is sleeved on the rotating shaft, one end of the rotating arm is also fixedly sleeved on the rotating shaft, a bending die matched with the shape of a pipe fitting is fixedly arranged on the rotating wheel, meanwhile, a clamping die matched with the bending die and matched with the shape of the pipe fitting is arranged on the rotating arm, the pipe fitting is clamped by the clamping die and the bending die in a matching mode, then the rotating shaft is driven to rotate by a driving device, the rotating wheel is driven to rotate to drive the bending wheel to rotate, meanwhile, the rotating arm rotates along the rotating shaft and drives the clamping die and the bending die to synchronously move, and the bending of the pipe fitting is completed.

In the existing pipe bending device, in order to adapt to pipe fittings of different shapes or to bend a plurality of pipe fittings simultaneously, a plurality of rotating wheels are arranged on a rotating shaft, each rotating wheel is provided with a bending die, and a plurality of clamping dies are correspondingly arranged on a rotating arm to form a plurality of pairs of clamping dies for the pipe fittings in a matching manner.

For example, the Chinese patent application number is: CN201710840868.6, published date: patent literature of 2018, 4 and 17 months discloses a pipe bender, and belongs to the technical field of pipe processing. The pipe bending machine comprises a rack and a machine head arranged on the rack, wherein the machine head comprises a swing arm, a round die, a die clamping assembly, a die guide assembly, a driving main shaft and a pipe bending motor; the die clamping assembly comprises a die clamping seat and a die clamp: the clamping die is movably arranged on the clamping die seat so as to be capable of self-adaptively correcting the axial direction of the clamping die cavity of the clamping die to the axial direction of the clamped part of the adaptive pipe when the clamping die and the round die are matched to clamp the pipe.

Also, for example, the Chinese patent application number is: CN201811090199.6, published date: the patent document 2/22/2019 discloses a pipe bending machine capable of bending a plurality of different pipes, which comprises an operating platform, a rotating shaft and a bending assembly, the bending component comprises a bending disc, a bending die set and a locking mechanism, wherein a bending groove is arranged on the bending disc, the rotating shaft is arranged on the operating platform and is in rotating fit with the operating platform, the bending disc is arranged on the rotating shaft, the locking mechanism comprises a locking platform and a locking bolt, the locking bolt is in threaded connection with the locking platform and can be abutted against the bending disc, the locking platform is in running fit with the rotating shaft, the bending die set comprises a bending die, a die seat and a sliding rod, the bending die is connected with the sliding rod through the die seat, the sliding rod is in sliding fit with the operating platform, the bending assemblies are at least three, and the sizes of the notches of the bending grooves in the bending discs in each bending assembly are different.

The pipe bending machines in the two schemes adopt a plurality of groups of clamping dies, and the diameters of the different rotating wheels sleeved on the rotating shaft are different aiming at the pipe fittings with different sizes, so that the sizes of the bending dies installed on the rotating wheels are different, the end parts of the bending dies form a stepped structure, the sizes of the clamping dies are different in a matched mode, and the end parts of the clamping dies correspondingly form a stepped structure. However, when the practical work discovers that a plurality of groups of clamping dies with different sizes are arranged, the processing difficulty of the clamping die groups is high, the angle of each clamping die is difficult to ensure to be just in a horizontal state, and the angle of some clamping dies can incline to influence the clamping of the pipe fitting.

Disclosure of Invention

1. Problems to be solved

Aiming at the problems that the machining difficulty of a clamping die set of the conventional pipe bender with a plurality of groups of clamping dies is high and the angle of each clamping die is difficult to ensure to be exactly in a horizontal state, the utility model provides a pipe bending device of the pipe bender with the plurality of groups of clamping dies, which can adjust the integral inclination angle of the clamping die set, so that part of inclined clamping dies can be matched with the corresponding bending dies to clamp a pipe fitting.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A pipe bending device of a pipe bending machine with a plurality of groups of clamping dies comprises a rotating shaft, a rotating wheel assembly, a rotating arm, a clamping die assembly, a clamping die mounting rack and an adjusting rod; the rotating wheel assembly is provided with a plurality of groups of rotating wheels and bending dies and is fixedly sleeved on the rotating shaft, one end of the rotating arm is fixedly sleeved on the rotating shaft, the clamping die assembly is arranged on the rotating arm and is provided with a plurality of clamping dies, the rotating shaft is driven to rotate by the driving mechanism,

the adjusting rod is fixedly arranged on the rotating arm, the upper end surface of the adjusting rod is of an arc structure, and the axial direction of the adjusting rod is vertical to the length direction of the rotating arm; the clamping die mounting frame comprises a mounting plate and a connecting plate, the clamping dies are mounted on the side face, close to the rotating wheel assembly, of the mounting plate in the height direction, and grooves matched with the upper end face of the adjusting rod are formed in the lower end face of the connecting plate and are supported on the adjusting rod; and one side of the connecting plate, which is far away from the rotating wheel assembly, is provided with a screw hole which penetrates through the upper end surface and the lower end surface of the connecting plate, and a screw is connected in the screw hole in a threaded manner.

As a further improvement of the technical proposal, the device also comprises a slide seat and a slide seat driving mechanism; the upper end face of the rotating arm is provided with a sliding rail extending along the length direction of the rotating arm, and the sliding seat is slidably mounted on the sliding rail and driven to move by a sliding seat driving mechanism; the adjusting rod is fixedly arranged on the sliding seat.

As a further improvement of the technical scheme, the slide seat driving mechanism comprises a feed screw and nut mechanism and a motor, the motor is fixedly arranged on the rotating arm and drives a feed screw of the feed screw and nut mechanism to rotate, and a nut of the feed screw and nut mechanism is fixedly connected with the slide seat.

As a further improvement of the technical scheme, the upper end surface of the adjusting rod is provided with an arc groove, and an arc bulge matched with the arc groove is arranged in the groove of the lower end surface of the connecting plate.

As a further improvement of the technical solution, the clamping die mounting frame further comprises a reinforcing plate; the reinforcing plate is respectively connected with the mounting plate and the connecting plate.

As a further improvement of the technical scheme, a guide rail extending along the height direction is arranged on the side surface of the mounting plate close to the rotating wheel assembly, and the clamping die is slidably mounted on the guide rail.

As a further improvement of the technical proposal, the device also comprises a plurality of supporting screws; a supporting block is arranged on the side surface of the mounting plate below the lowermost clamping die, and a screw hole is formed in the lower end surface of the clamping die; between two adjacent clamping dies, one end of a supporting screw is screwed into a screw hole of the upper clamping die, and the other end of the supporting screw is supported and arranged on the upper end surface of the lower clamping die; one end of a supporting screw is screwed into a screw hole of the clamping die, and the other end of the supporting screw is supported and arranged on the upper end face of the supporting block.

As a further improvement of the technical scheme, one end of the rotating arm, which is far away from the rotating wheel component, is provided with a support, the upper end of the support is horizontally provided with a limiting rod, and the end part of the limiting rod is fixedly sleeved on the upper end of the rotating shaft.

3. Advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

(1) the pipe bending device of the pipe bending machine with the multiple groups of clamping dies is provided with the adjusting rod, the clamping die mounting rack is supported and arranged on the adjusting rod, the height of one side, away from the rotating wheel assembly, of the connecting plate, which is jacked up by the screw can be adjusted by screwing the adjusting screw into the depth of the screw hole in the connecting plate, and the clamping die mounting rack is rotated along the adjusting rod, so that the inclination angle of the clamping die on the clamping die mounting rack is adjusted, the inclined clamping die due to insufficient machining precision is converted into a horizontal state, and the inclined clamping die is matched with the corresponding bending die to clamp a pipe fitting;

(2) according to the pipe bending device of the pipe bending machine with the multiple groups of clamping dies, disclosed by the utility model, the clamping die assembly can be controlled to move back and forth through the sliding seat and the sliding seat driving mechanism, so that the position of the clamping die assembly is conveniently adjusted, meanwhile, a thrust force can be provided when a pipe fitting is clamped, and the clamping effect on the pipe fitting is improved;

(3) the utility model relates to a pipe bending device of a pipe bending machine with a plurality of groups of clamping dies, wherein the upper end surface of an adjusting rod is provided with an arc groove, a groove on the lower end surface of a connecting plate is internally provided with an arc bulge matched with the arc groove, and the arc bulge and the arc groove are matched to limit the displacement of a clamping die mounting frame in the width direction of a rotating arm so as to prevent the clamping die mounting frame from sliding off the rotating arm;

(4) according to the pipe bending device of the pipe bending machine, which is provided with the multiple groups of clamping dies, the side surface, close to the rotating wheel assembly, of the mounting plate is provided with the guide rail extending along the height direction, and the clamping dies are slidably mounted on the guide rail, so that the heights of the clamping dies can be adjusted, and the clamping dies can be conveniently matched with the bending dies better;

(5) the pipe bending device of the pipe bending machine is provided with a plurality of groups of clamping dies, wherein one end of a rotating arm, which is far away from a rotating wheel component, is provided with a bracket, the upper end of the bracket is horizontally provided with a limiting rod, the end part of the limiting rod is fixedly sleeved on the upper end of a rotating shaft, and the rotating arm is fixedly sleeved on the lower side of the rotating shaft, so that the rotating arm can synchronously move along with the rotating shaft when the rotating shaft rotates.

Drawings

FIG. 1 is a schematic structural view of a pipe bending apparatus;

FIG. 2 is a schematic view of the mounting structure of the clamping die mounting bracket;

FIG. 3 is a schematic view of an installation structure of the adjusting lever;

in the figure: 1. a rotating shaft; 2. a rotating wheel assembly; 3. a rotating arm; 31. a support; 32. a limiting rod; 4. clamping the die assembly; 5. clamping the mold mounting frame; 51. mounting a plate; 52. a connecting plate; 53. a screw hole; 54. a reinforcing plate; 55. a support block; 6. adjusting a rod; 61. an arc groove; 7. a slide base; 8. a slide carriage driving mechanism.

Detailed Description

The utility model is further described with reference to specific embodiments and the accompanying drawings.

Examples

A pipe bending device of a pipe bending machine with a plurality of groups of clamping dies is used in the pipe bending machine, is provided with a plurality of groups of clamping dies, can select corresponding clamping dies according to different sizes of pipes, is suitable for the pipes with different sizes, and the detailed structure and the working principle of the pipe bending device are described in detail below.

As shown in fig. 1 and 2, the apparatus includes a rotating shaft 1, a rotating wheel assembly 2, a rotating arm 3, a clamping die assembly 4, a clamping die mounting bracket 5, and an adjusting lever 6. The rotating wheel assembly 2 is provided with a plurality of groups of rotating wheels and bending dies and is fixedly sleeved on the rotating shaft 1, one end of the rotating arm 3 is fixedly sleeved on the rotating shaft 1, the clamping die assembly 4 is installed on the rotating arm 3 and is provided with a plurality of clamping dies, the rotating shaft 1 is driven to rotate by a driving mechanism, the driving mechanism can be driven by an oil cylinder chain wheel or driven by a motor, and the embodiment adopts oil cylinder chain wheel driving.

The adjusting rod 6 is fixedly arranged on the rotating arm 3, the upper end surface of the adjusting rod is of a circular arc structure, and the axial direction of the adjusting rod is vertical to the length direction of the rotating arm 3. The clamping die mounting frame 5 comprises a mounting plate 51 and a connecting plate 52, a plurality of clamping dies are mounted on the side surface of the mounting plate 51 close to the rotating wheel assembly 2 in the height direction, and the lower end surface of the connecting plate 52 is provided with a groove matched with the upper end surface of the adjusting rod 6 and is supported on the adjusting rod 6. One side of the connecting plate 52 far away from the rotating wheel assembly 2 is provided with a screw hole 53 penetrating through the upper end surface and the lower end surface of the connecting plate 52, and a screw is connected with the screw in the screw hole 53 in a threaded manner.

Adopt above-mentioned structure, through the degree of depth of screw 53 on the adjusting screw in connecting plate, can adjust the connecting plate 52 and keep away from the one side of runner subassembly 2 by the height of screw jack-up, make and press from both sides tight mould mounting bracket 5 and rotate along adjusting pole 6 to the inclination of the tight mould of clamp on the tight mould mounting bracket 5 of adjustment clamp makes because the tight mould of clamp that machining precision is not enough and incline changes the horizontality into, realizes pressing from both sides tight to the pipe fitting with the curved mould cooperation that corresponds.

In addition, the present embodiment is also provided with a carriage 7 and a carriage drive mechanism 8. The upper end face of the rotating arm 3 is provided with a slide rail extending along the length direction of the rotating arm 3, a slide seat 7 is slidably mounted on the slide rail, and a slide seat driving mechanism 8 drives a movable adjusting rod 6 to be fixedly mounted on the slide seat 7. In this embodiment, the slide seat driving mechanism 8 includes a screw and nut mechanism and a motor, the motor is fixedly mounted on the rotating arm 3 to drive the screw of the screw and nut mechanism to rotate, and the nut of the screw and nut mechanism is fixedly connected to the slide seat 7. Through slide 7 and slide actuating mechanism 8, can control the back-and-forth movement of clamping die assembly 4, conveniently adjust the position of clamping die assembly 4, can provide a thrust when pressing from both sides tight pipe fitting simultaneously, improve the tight effect of clamp to the pipe fitting.

In order to limit the displacement of the clamping die mounting bracket 5 in the width direction of the rotating arm 3 and prevent the clamping die mounting bracket 5 from sliding off the rotating arm 3, as shown in fig. 3, in the present embodiment, an arc groove 61 is provided on the upper end surface of the adjusting rod 6, and an arc protrusion matching with the arc groove 61 is provided in the groove on the lower end surface of the connecting plate 52. When the connecting plate 52 is mounted on the adjusting lever 6, the arc protrusion is caught in the arc groove 61.

In order to improve the structural strength of the clamping die mounting bracket 5, the present embodiment is further provided with reinforcing plates 54 that connect the mounting plate 51 and the connecting plate 52, respectively.

In addition, a guide rail extending in the height direction is arranged on the side surface of the mounting plate 51 close to the rotating wheel assembly 2, the clamping die is slidably mounted on the guide rail, and the clamping die is fixed through a fixing mechanism after the height is adjusted. Specifically, the fixing device comprises a plurality of supporting screws, a supporting block 55 is arranged on the side surface of the mounting plate 51 below the lowermost clamping die, and a screw hole is formed in the lower end surface of each clamping die. Between two adjacent clamping dies, one end of a supporting screw is screwed into the screw hole of the upper clamping die, and the other end of the supporting screw is supported on the upper end face of the lower clamping die to fix the upper clamping die. Between the lowermost clamping die and the supporting block 55, one end of the supporting screw is screwed into the screw hole of the clamping die, and the other end is supported and arranged on the upper end face of the supporting block 55, so that the lowermost clamping die is fixed. In this way, the height of the clamping die can be adjusted, and the clamping die and the bending die can be better matched conveniently.

It is worth mentioning that one end of the rotating arm 3, which is far away from the rotating wheel assembly 2, is provided with a support 31, the upper end of the support 31 is horizontally provided with a limiting rod 32, the end part of the limiting rod 32 is fixedly sleeved on the upper end of the rotating shaft 1, and the rotating arm 3 is fixedly sleeved on the lower side of the rotating shaft 1, so that the rotating arm 3 can synchronously move along with the rotating shaft 1 when the rotating shaft 1 rotates.

In summary, the pipe bending device of the pipe bending machine with multiple sets of clamping dies according to the embodiment can adjust the overall inclination angle of the clamping die set, so that the partially inclined clamping dies can cooperate with the corresponding bending dies to clamp the pipe.

The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.

Claims (8)

1. The utility model provides a bending machine swan neck system with multiunit clamping die utensil, includes pivot (1), runner subassembly (2), rocking arm (3) and presss from both sides tight mould subassembly (4), runner subassembly (2) have multiunit runner and bend mould and fixed cup joint on pivot (1), wherein the fixed cup joint of one end of rocking arm (3) is on pivot (1), press from both sides tight mould subassembly (4) and install on rocking arm (3) and have a plurality of tight moulds of clamp, pivot (1) is rotatory through the actuating mechanism drive, its characterized in that:

the clamping die further comprises a clamping die mounting frame (5) and an adjusting rod (6); the adjusting rod (6) is fixedly arranged on the rotating arm (3), the upper end surface of the adjusting rod is of an arc structure, and the axial direction of the adjusting rod is vertical to the length direction of the rotating arm (3); the clamping die mounting frame (5) comprises a mounting plate (51) and a connecting plate (52), the clamping dies are mounted on the side face, close to the rotating wheel assembly (2), of the mounting plate (51) in the height direction, and the lower end face of the connecting plate (52) is provided with a groove matched with the upper end face of the adjusting rod (6) and is supported on the adjusting rod (6); one side of the connecting plate (52) far away from the rotating wheel assembly (2) is provided with a screw hole (53) penetrating through the upper end face and the lower end face of the connecting plate (52), and a screw is connected to the screw hole (53) in an internal thread mode.

2. The bender bending apparatus with multiple clamping dies according to claim 1, wherein: the device also comprises a sliding seat (7) and a sliding seat driving mechanism (8); the upper end face of the rotating arm (3) is provided with a sliding rail extending along the length direction of the rotating arm (3), and the sliding seat (7) is slidably mounted on the sliding rail and driven to move by a sliding seat driving mechanism (8); the adjusting rod (6) is fixedly arranged on the sliding seat (7).

3. The bender bending apparatus with multiple clamping dies according to claim 2, wherein: the slide seat driving mechanism (8) comprises a screw rod nut mechanism and a motor, the motor is fixedly installed on the rotating arm (3) and drives a screw rod of the screw rod nut mechanism to rotate, and a nut of the screw rod nut mechanism is fixedly connected with the slide seat (7).

4. The bending device of a pipe bender with multiple sets of clamping dies according to claim 1, wherein: the upper end surface of the adjusting rod (6) is provided with an arc groove (61), and an arc bulge matched with the arc groove (61) is arranged in a groove of the lower end surface of the connecting plate (52).

5. The bender bending apparatus with multiple clamping dies according to any of claims 1-4, wherein: the clamping die mounting frame (5) further comprises a reinforcing plate (54); the reinforcing plate (54) is respectively connected with the mounting plate (51) and the connecting plate (52).

6. The bending device of the pipe bender with multiple groups of clamping dies according to any one of claims 1 to 4, wherein: the side face, close to the rotating wheel assembly (2), of the mounting plate (51) is provided with a guide rail extending in the height direction, and the clamping die is slidably mounted on the guide rail.

7. The bender bending apparatus with multiple clamping dies according to claim 6, wherein: a plurality of support screws are also included; a supporting block (55) is arranged on the side surface of the mounting plate (51) below the lowest clamping die, and a screw hole is formed in the lower end surface of the clamping die; between two adjacent clamping dies, one end of a supporting screw is screwed into a screw hole of the upper clamping die, and the other end of the supporting screw is supported and arranged on the upper end surface of the lower clamping die; one end of a supporting screw is screwed into a screw hole of the clamping die between the lowest clamping die and the supporting block (55), and the other end of the supporting screw is supported and arranged on the upper end face of the supporting block (55).

8. The bender bending apparatus with multiple clamping dies according to any of claims 1-4, wherein: one end of the rotating arm (3) far away from the rotating wheel assembly (2) is provided with a support (31), the upper end of the support (31) is horizontally provided with a limiting rod (32), and the end part of the limiting rod (32) is fixedly sleeved on the upper end of the rotating shaft (1).

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