CN113441600B

CN113441600B - Efficient elbow forming device and method

Info

Publication number: CN113441600B
Application number: CN202110816777.5A
Authority: CN
Inventors: 罗荣斌; 胡红; 侯杰
Original assignee: Foshan Yongheng Hydraulic Machinery Co ltd
Current assignee: Foshan Yongheng Hydraulic Machinery Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2022-03-18
Anticipated expiration: 2041-07-20
Also published as: CN113441600A

Abstract

The invention discloses a high-efficiency bent pipe forming device and a method, wherein the device comprises a fixed die, a movable die, a vertical driving device and a punch forming device; the punch forming device comprises a punching component and a linear driving mechanism; the punching assembly comprises a mounting seat and a plurality of punches; the multiple punches are arranged on the mounting part of the mounting seat, the axes of the multiple punches are parallel to each other, and a height difference is formed between every two adjacent punches in the axis direction; a plurality of bent pipe blanks to be processed are arranged on the fixed die, and the arrangement direction of the bent pipe blanks is consistent with that of the punches; the multiple bent pipe blanks correspond to the multiple punches one by one, and the axial direction of the pipe body to be processed in each bent pipe blank is superposed with the axial direction of the corresponding punch; the linear driving mechanism is used for driving the multiple punches to perform feed motion along the axial direction of the pipe body to be processed in the bent pipe blank, so that the multiple bent pipe blanks are processed at the same time.

Description

Efficient elbow forming device and method

Technical Field

The invention relates to a clamping and pressing pipe forming device, in particular to a high-efficiency bent pipe forming device and method.

Background

In the in-process of processing elbow formula joint pipe, the pipe of treating processing is placed in the die cavity of cover half, drive movable mould vertical motion through vertical drive arrangement (for example pneumatic cylinder), make movable mould and cover half cooperation, then, the drive arrangement (for example linear drive motor or pneumatic cylinder) that is located movable mould and cover half both sides drives the drift and enters into the inner chamber of pipe, this drift and outer die cavity cooperation simultaneously, make the pipe wall of pipe produce the magnitude of interference, form seal chamber, at last by superhigh pressure generating device to pouring into the superhigh pressure medium in the seal chamber, meanwhile, the drift continues along its entering direction motion, make the joint pipe shaping.

However, the existing pipe bending and clamping pipe forming equipment can only process one pipe bending pipe blank at a time, and after the pipe bending pipe blank is processed into the pipe bending and clamping pipe, the pipe bending pipe blank needs to be taken out and a new pipe bending pipe blank is put into a processing station, so that the processing procedure is complex, the processing efficiency is low, and the labor intensity of operators is increased.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides the high-efficiency bent pipe forming device which can simultaneously complete the processing of a plurality of bent pipe blanks and greatly improve the processing efficiency.

A second object of the present invention is to provide a high-efficiency bend pipe forming method for the high-efficiency bend pipe forming apparatus.

The technical scheme for solving the technical problems is as follows:

a high-efficiency elbow forming device comprises a fixed die, a movable die, a vertical driving device and punch forming devices, wherein the fixed die and the movable die are arranged on a workbench, the vertical driving device is used for driving the vertical movement of the movable die to be matched with the fixed die, the punch forming devices are arranged on two sides of the fixed die and the movable die,

the fixed die is mounted on the workbench, a plurality of lower die cavities are formed in the fixed die, the movable die is located above the fixed die, a plurality of upper die cavities are formed in the movable die, and the upper die cavities correspond to the lower die cavities one to one;

the punching forming device comprises a punching assembly and a linear driving mechanism used for driving the punching assembly to do linear motion, wherein the punching assembly comprises a mounting seat and a plurality of punches arranged on the mounting seat, the mounting seat is provided with a mounting part used for mounting the punches, and the punches are mounted on the mounting part; the axes of the plurality of punches are parallel to each other, and a height difference is formed between two adjacent punches in the direction of the axes; a plurality of bent pipe blanks to be processed are arranged in a plurality of lower die cavities on the fixed die, and the arrangement direction of the bent pipe blanks is consistent with that of the plurality of punches; the multiple bent pipe blanks correspond to the multiple punches one by one, and the axial direction of the pipe body to be processed in each bent pipe blank is superposed with the axial direction of the corresponding punch; the linear driving mechanism is used for driving the plurality of punches to perform feed motion along the axial direction of the pipe body to be processed in the bent pipe blank.

The working principle of the high-efficiency elbow forming device is as follows;

when the fixed die works, a plurality of bent pipe blanks to be processed are respectively placed in the lower die cavity of the fixed die; then, the vertical driving device drives the movable die to move downwards and tightly press the fixed die, so that the upper die cavities on the movable die are matched with the lower die cavities on the fixed die one by one; then, linear driving mechanisms in the punch forming devices on the two sides drive the punching assemblies to move, so that a plurality of punches in the punching assemblies synchronously enter tube cavities of tube bodies on the same side of the punch forming devices in a plurality of groups of bent tube blanks; in the process that the linear driving mechanism continues to drive the punch to perform feeding motion, an ultrahigh pressure medium is injected into the sealed cavity through the ultrahigh pressure generating device, so that the bent pipe blank is processed into the clamping pipe.

In the process, because the plurality of bent pipe blanks are arranged, the pipe bodies needing to be processed on the two sides of the bent pipe blanks have height difference in the axial direction; however, because the plurality of punches of the punch assembly in the invention are arranged on the mounting part, the axes of the plurality of punches are parallel to each other, and a height difference is formed between two adjacent punches in the axial direction; a plurality of bent pipe blanks to be processed are arranged in a plurality of lower die cavities on the fixed die, and the arrangement direction of the bent pipe blanks is consistent with that of the plurality of punches; the multiple bent pipe blanks correspond to the multiple punches one by one, and the axial direction of the pipe body to be processed in each bent pipe blank is superposed with the axial direction of the corresponding punch; therefore, only by ensuring that the height difference between the multiple bent pipe blanks is equal to the height difference between the punches corresponding to the height difference, the multiple punches in the punch assembly can synchronously enter the pipe cavities of the multiple bent pipe blanks when the linear driving mechanism drives the punch assembly to move along the axis direction of the pipe body to be processed in the bent pipe blanks, and thus the multiple bent pipe blanks can be processed simultaneously.

Preferably, a plurality of punches are arranged at equal intervals along the arrangement direction of the punches; correspondingly, a plurality of bent pipe blanks on the fixed die are arranged at equal intervals.

Preferably, the height differences formed between two adjacent punches in the axial direction thereof are all equal; correspondingly, the height differences of the pipe bodies needing to be processed in the plurality of bent pipe blanks in the axial direction are equal.

Preferably, the installation part of the installation seat is obliquely arranged, and the plurality of punches installed on the installation part are equal in length.

Preferably, be provided with a plurality of ladder faces on the installation department of mount pad, a plurality of ladder faces along the extending direction of installation department arranges in proper order, and with many drifts one-to-one.

Preferably, an installation table for installing the punch is arranged between the stepped surface of the installation part and the punch, the installation table is installed on the stepped surface, and the punch is installed on the installation table; the mount table is including fixing base and the grip slipper that is located the drift both sides, wherein, the fixing base is installed on the ladder face of installation department, be provided with first centre gripping groove on this fixing base, be provided with the second centre gripping groove on the grip slipper, will the grip slipper is installed when on the ladder face of installation department, first centre gripping groove with the cooperation of second centre gripping groove realizes pressing from both sides tightly the drift both sides.

Preferably, the bottom of the punch is provided with a limiting part and a positioning part, the limiting part and the positioning part are coaxially arranged with the punch, and a positioning hole matched with the positioning part is arranged on the stepped surface of the mounting part; the diameter of the limiting part is larger than the diameters of the first clamping groove and the second clamping groove; when the fixed seat and the clamping seat are clamped on two sides of the punch, the limiting part is located below the first clamping groove and the second clamping groove.

Preferably, the mounting base is the mounting panel of right triangle structure, the installation department sets up on the inclined plane of mounting panel.

Preferably, an end face of the mounting plate perpendicular to the punch is provided with a mounting groove, and the mounting groove extends along the length direction of the end face; the mounting grooves are two and are T-shaped grooves.

A high-efficiency elbow forming method comprises the following steps:

(1) respectively placing a plurality of bent pipe blanks to be processed into the lower die cavity of the fixed die;

(2) the vertical driving device drives the movable die to move downwards and tightly press the fixed die, so that the upper die cavities on the movable die are matched with the lower die cavities on the fixed die one by one;

(3) the linear driving mechanisms in the punch forming devices on the two sides drive the punching assemblies to move, so that a plurality of punches in the punching assemblies synchronously enter the pipe cavities of the pipe bodies on the same side of the punch forming devices in the plurality of groups of bent pipe blanks;

(4) and in the process of driving the punch to perform feeding motion by the linear driving mechanism, injecting an ultrahigh pressure medium into the sealed cavity through the ultrahigh pressure generating device, so that the bent pipe blank is processed into the clamping pipe.

Compared with the prior art, the invention has the following beneficial effects:

1. the efficient elbow forming device can mount a plurality of punches on the mounting part of the mounting seat, so that a plurality of elbow pipe blanks can be simultaneously processed under the driving of the linear driving mechanism, and the processing efficiency is greatly improved.

2. In the process of processing the bent pipe blanks, because a plurality of bent pipe blanks are arranged, the height difference exists between the pipe bodies needing to be processed at the two sides of the bent pipe blanks in the axial direction of the bent pipe blanks; however, because the plurality of punches of the punch assembly in the invention are arranged on the mounting part, the axes of the plurality of punches are parallel to each other, and a height difference is formed between two adjacent punches in the axial direction; a plurality of bent pipe blanks to be processed are arranged in a plurality of lower die cavities on the fixed die, and the arrangement direction of the bent pipe blanks is consistent with that of the plurality of punches; the multiple bent pipe blanks correspond to the multiple punches one by one, and the axial direction of the pipe body to be processed in each bent pipe blank is superposed with the axial direction of the corresponding punch; therefore, only by ensuring that the height difference between the multiple bent pipe blanks is equal to the height difference between the punches corresponding to the height difference, the multiple punches in the punch assembly can synchronously enter the pipe cavities of the multiple bent pipe blanks when the linear driving mechanism drives the punch assembly to move along the axis direction of the pipe body to be processed in the bent pipe blanks, and thus the multiple bent pipe blanks can be processed simultaneously.

3. The efficient elbow forming device can synchronously finish the processing of a plurality of elbow pipe blanks, and reduces the labor intensity and labor cost of operators while improving the processing efficiency.

4. The efficient elbow forming device is compact in structure, and can finish machining of a plurality of elbow pipe blanks in a compact space.

Drawings

Fig. 1 is a schematic perspective view of a high-efficiency elbow forming device according to the present invention.

Fig. 2 is a plan view of the high-efficiency elbow molding device (with the movable mold removed) of the present invention.

Fig. 3 is a schematic perspective view of the movable mold.

Fig. 4-6 are schematic perspective views of three different views of the punching assembly.

Fig. 7 is an exploded view of the mount.

Fig. 8 and 9 are schematic perspective views of the mounting table and the punch from two different perspectives.

Fig. 10 is a diagram showing a positional relationship of a plurality of groups of bent pipe blanks in the arrangement direction thereof.

Fig. 11 is a positional relationship diagram of a plurality of sets of punches in the arrangement direction of a plurality of sets of bent pipe blanks.

Detailed Description

The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.

Referring to fig. 1 to 11, the efficient elbow forming device of the invention comprises a fixed die 6 arranged on a workbench 8, a movable die 7, a vertical driving device for driving the movable die 7 to vertically move to be matched with the fixed die 6, and punch forming devices arranged at two sides of the fixed die 6 and the movable die 7.

Referring to fig. 1 to 11, the fixed mold 6 is mounted on the worktable 8, and a plurality of lower mold cavities 601 are arranged on the fixed mold 6; the movable die 7 is positioned above the fixed die 6, a plurality of upper die cavities 701 are arranged on the movable die 7, and the plurality of lower die cavities 601 correspond to the plurality of upper die cavities 701 one by one; when the vertical driving device drives the movable die 7 to move downwards and tightly press the fixed die 6, the plurality of lower die cavities 601 are matched with the plurality of upper die cavities 701 one by one; since a 90-degree elbow pipe blank is to be processed, the bend angles in the lower die cavity 601 and the upper die cavity 701 are both 90 degrees.

In addition, the vertical driving device in this embodiment may be implemented by referring to a corresponding vertical driving device in the existing pipe clamping and pressing forming equipment, for example, by using an electric push rod, or by using a hydraulic driving mechanism.

Referring to fig. 1 to 11, the stamping forming device includes a stamping assembly and a linear driving mechanism for driving the stamping assembly to perform linear motion, wherein the stamping assembly includes a mounting seat 1 and a plurality of punches 3 arranged on the mounting seat 1, an installation portion for installing the punches 3 is arranged on the mounting seat 1, and the plurality of punches 3 are installed on the installation portion; the axes of the plurality of punches 3 are parallel to each other, and a height difference B is formed between two adjacent punches 3 in the direction of the axes; a plurality of bent pipe blanks to be processed are arranged in a plurality of lower die cavities 601 on the fixed die 6, and the arrangement direction of the bent pipe blanks is consistent with that of the plurality of punches 3; the multiple bent pipe blanks correspond to the multiple punches 3 one by one, and the axial direction of the pipe body to be processed in each bent pipe blank is superposed with the axial direction of the corresponding punch 3; the linear driving mechanism is used for driving the plurality of punches 3 to perform feed motion along the axial direction of a pipe body to be processed in the bent pipe blank; the mounting seat 1 is driven to move by the linear driving mechanism, so that the multiple punches 3 on the mounting seat 1 synchronously enter the tube cavities of the corresponding bent tube blanks respectively, and the multiple bent tube blanks are simultaneously processed.

Referring to fig. 1 to 11, in the arrangement process of the plurality of bent pipe blanks, since the pipe bodies to be machined on both sides of the bent pipe blanks also have a height difference in the axial direction thereof, it is only necessary to ensure that the height difference (assumed as a) of the pipe bodies to be machined in the axial direction thereof is equal to the height difference (assumed as B) between the punches 3 corresponding thereto, that is, a is equal to B; when the linear driving mechanism drives the punch assembly to move along the axis direction of the pipe body to be processed in the bent pipe blank, a plurality of punches 3 in the punch assembly can synchronously enter the pipe cavities of a plurality of bent pipe blanks, so that the processing of the bent pipe blanks is simultaneously completed.

Through the arrangement, the plurality of punches 3 and the plurality of bent pipe blanks are in one-to-one correspondence with the pipe bodies positioned on the same side of the punch forming device, and in the process that the linear driving mechanism drives the plurality of punches to enter the pipe cavities of the bent pipe blanks, the feeding depths of the punches 3 in the pipe cavities are the same, so that the high-efficiency bent pipe forming device can process the plurality of bent pipe blanks simultaneously, and the processing efficiency is greatly improved.

In this embodiment, the linear driving mechanism may be implemented by referring to a corresponding linear driver in the existing pipe clamping and pressing forming device, for example, an electric push rod is used, or a hydraulic driving mechanism is used.

Referring to fig. 1 to 11, a plurality of punches 3 are arranged at equal intervals along the arrangement direction of the punches 3; correspondingly, the plurality of lower cavities 601 on the fixed die 6 and the plurality of upper cavities 701 on the movable die 7 are also arranged at equal intervals, so that the plurality of elbow pipe blanks are arranged at equal intervals; in addition, the height differences B formed between the adjacent two punches 3 in the axial direction thereof are all equal; correspondingly, the height differences A in the axial direction among the pipe bodies to be processed in the plurality of bent pipe blanks are also equal. Through the arrangement, the efficient elbow forming device is more compact in structure and more convenient to install.

Referring to fig. 1 to 11, the mounting portion of the mounting seat 1 is arranged obliquely, and the lengths of the plurality of punches 3 mounted on the mounting portion are all equal, when the punches 3 on the mounting seat 1 need to be replaced, the length of each punch 3 is equal, so that the replacement is good, and the punches can be directly replaced; wherein, be provided with a plurality of ladder faces 101 on the installation department of mount pad 1, a plurality of ladder faces 101 along the extending direction of installation department arranges in proper order, and with many drifts 3 one-to-one, every drift 3 is all installed on the ladder face 101 that corresponds.

Referring to fig. 1 to 11, a mounting table 2 for mounting the punch 3 is arranged between the stepped surface 101 of the mounting portion and the punch 3, the mounting table 2 is mounted on the stepped surface 101, the punch 3 is mounted on the mounting table 2, wherein the mounting table 2 comprises a fixing seat 202 and a clamping seat 201 which are located on two sides of the punch 3, wherein the fixing seat 202 is mounted on the stepped surface 101 of the mounting portion through a screw connection structure, a positioning end 203 can be arranged at the lower end of the fixing seat 202, and a positioning hole 102 can be arranged on the stepped surface 101 of the mounting portion to ensure the positioning of the fixing seat 202 when the fixing seat 202 is mounted; be provided with first centre gripping groove on this fixing base 202, be provided with second centre gripping groove on the centre gripping seat 201, work as centre gripping seat 201 passes through the screw connection structure and installs when on the ladder surface 101 of installation department, first centre gripping groove with the cooperation of second centre gripping groove constitutes circular shape centre gripping groove, and hold tightly the both sides of drift 3. Through setting up above-mentioned mount table 2, can realize carrying out centre gripping and fixing to drift 3, guarantee that drift 3 does not take place the skew at the in-process of work to this guarantees the machining precision.

For this purpose, the bottom of the punch 3 is provided with a limiting part 301 and a positioning part 302, the limiting part 301 and the positioning part 302 are arranged coaxially with the punch 3, the stepped surface 101 of the mounting part is provided with a positioning hole 103 matched with the positioning part 302, and when the punch 3 is mounted on the stepped surface 101 of the mounting part, the positioning part 302 at the bottom of the punch 3 is matched with the positioning hole 103 to realize positioning; then, the clamping seat 201 is installed on the stepped surface 101 of the installation part, and the diameter of the limiting part 301 is larger than that of the first clamping groove and that of the second clamping groove; when the fixing base 202 and the clamping base 201 clamp both sides of the punch 3, the limiting portion 301 is located below the first clamping groove and the second clamping groove, so that the punch 3 can be prevented from being radially displaced.

Referring to fig. 1 to 11, the mounting base 1 is a mounting plate with a right-angled triangle structure, and the mounting part is arranged on an inclined surface of the mounting plate; an installation groove 5 is arranged on the end surface of the installation plate, which is perpendicular to the punch 3, and the installation groove 5 extends along the length direction of the end surface; through setting up mounting groove 5, can be convenient mount pad 1 is connected with linear drive device's drive end.

In this embodiment, two mounting grooves 5 are provided, and are all T-shaped grooves.

In addition, the end face of the mounting plate is provided with two groups of grooves 4 for mounting sliding blocks, and the mounting plate is connected with the sliding blocks in the guide mechanism through the grooves 4, so that the guide mechanism can guide the linear motion of the punch assembly.

Referring to fig. 1 to 11, the efficient elbow forming method of the invention includes the following steps:

(1) respectively placing a plurality of bent pipe blanks to be processed into the lower die cavity 601 of the fixed die 6;

(2) the vertical driving device drives the movable die 7 to move downwards, so that the movable die 7 is pressed on the fixed die 6, and the upper die cavities 701 on the movable die 7 are matched with the lower die cavities 601 on the fixed die 6 one by one;

(3) the linear driving mechanisms in the punch forming devices on the two sides drive the punching assemblies to move, so that a plurality of punches 3 in the punching assemblies synchronously enter the pipe cavities of the pipe bodies on the side, corresponding to the punch forming devices, of the plurality of groups of bent pipe blanks;

(4) and in the process of driving the punch 3 to perform feeding motion by the linear driving mechanism, injecting an ultrahigh pressure medium into the sealed cavity through the ultrahigh pressure generating device, so that the bent pipe blank is processed into the clamping and pressing pipe.

The above description is a preferred embodiment of the present invention, but the present invention is not limited to the above description, and any other changes, modifications, substitutions, blocks and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and they are included in the scope of the present invention.

Claims

1. A high-efficiency elbow forming device is characterized by comprising a fixed die, a movable die, a vertical driving device and punch forming devices, wherein the fixed die and the movable die are arranged on a workbench, the vertical driving device is used for driving the vertical movement of the movable die to be matched with the fixed die, the punch forming devices are arranged on two sides of the fixed die and the movable die, wherein,

2. A high-efficiency elbow forming device according to claim 1, wherein a plurality of the punches are arranged at equal intervals along the arrangement direction of the punches; correspondingly, a plurality of bent pipe blanks on the fixed die are arranged at equal intervals.

3. A high-efficiency elbow forming device according to claim 1, wherein the height difference formed between two adjacent punches in the axial direction thereof is equal; correspondingly, the height differences of the pipe bodies needing to be processed in the plurality of bent pipe blanks in the axial direction are equal.

4. A high-efficiency elbow forming device according to claim 1, wherein the mounting portion of the mounting seat is disposed obliquely, and the plurality of punches mounted on the mounting portion are equal in length.

5. A high-efficiency elbow forming device according to any one of claims 1 to 4, wherein a plurality of stepped surfaces are arranged on the mounting part of the mounting seat, and are sequentially arranged along the extending direction of the mounting part and correspond to a plurality of punches one by one.

6. The high-efficiency elbow forming device according to claim 5, wherein a mounting table for mounting the punch is arranged between the stepped surface of the mounting part and the punch, the mounting table is mounted on the stepped surface, and the punch is mounted on the mounting table; the mount table is including fixing base and the grip slipper that is located the drift both sides, wherein, the fixing base is installed on the ladder face of installation department, be provided with first centre gripping groove on this fixing base, be provided with the second centre gripping groove on the grip slipper, will the grip slipper is installed when on the ladder face of installation department, first centre gripping groove with the cooperation of second centre gripping groove realizes pressing from both sides tightly the drift both sides.

7. The efficient elbow forming device according to claim 6, wherein a bottom of the punch is provided with a limiting part and a positioning part, the limiting part and the positioning part are arranged coaxially with the punch, and a stepped surface of the mounting part is provided with a positioning hole matched with the positioning part; the diameter of the limiting part is larger than the diameters of the first clamping groove and the second clamping groove; when the fixed seat and the clamping seat are clamped on two sides of the punch, the limiting part is located below the first clamping groove and the second clamping groove.

8. The high efficiency elbow forming device according to claim 1, wherein the mounting base is a mounting plate of right triangle structure, and the mounting portion is disposed on an inclined surface of the mounting plate.

9. The high-efficiency elbow forming device according to claim 8, wherein an installation groove is provided on an end surface of the installation plate perpendicular to the punch, the installation groove extending along a length direction of the end surface; the mounting grooves are two and are T-shaped grooves.

10. A high-efficiency elbow forming method for the high-efficiency elbow forming apparatus according to any one of claims 1 to 9, characterized by comprising the steps of: