Pipe fitting trisection hole blanking machining device

Abstract

The utility model provides a pipe fitting trisection hole blanking processing device, which relates to the technical field of hole processing equipment, and comprises an upper die, a lower die, a lower die and a punching head, the lower die comprises a lower die base, a supporting base, a lower male die and a bracket. The pipe fitting trisection hole punching device has the advantages that a first trisection hole is punched in a pipe fitting through cooperation of the punch and the punching sleeve; then the pipe fitting is rotated by 120 degrees, so that the ball head positioning pin is jacked into the first trisection hole, and then a second trisection hole can be punched in the pipe fitting through matching of the punch and the punching sleeve; the pipe fitting is rotated by 120 degrees again, so that the ball head positioning pin is jacked into the second trisection hole, and a third trisection hole can be punched in the pipe fitting through matching of the punch and the punching sleeve; three trisection holes form a group of trisection holes, the positioning is accurate, the sizes of the processed trisection holes are stable and uniform, the positioning and the processing are simple, and the processing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hole processing equipment, in particular to a punching and processing device for dividing holes into three equal parts of a pipe. Background Art

[0002] In order to achieve fixed installation, pipe fittings often need to be processed with mounting holes. Generally, pipe fittings are processed by drilling machines. However, some pipe fittings need to be processed with multiple mounting holes, such as Figure 6 As shown, this type of pipe fitting is a solar photovoltaic panel mounting column. In order to achieve installation and fixation, three equal holes need to be processed as mounting holes. When batch drilling is performed by a drilling machine, the friction between the drill bit and the pipe fitting is very large, and the heat generated cannot be discharged in time, resulting in serious wear of the drill bit, and the size of the processed mounting holes cannot be guaranteed to be stable and uniform. In addition, when drilling the pipe fitting into three equal holes, in order to accurately locate the drilling position before drilling, the drilling position needs to be marked, and repositioning is required when switching the drilling position, which has low production efficiency. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides a device for punching and processing pipe fittings into three equal parts.

[0004] The embodiment of the utility model provides a device for punching and processing pipe fittings into three equal parts, comprising:

[0005] An upper die, comprising an upper die base and a punch disposed on the upper die base;

[0006] And a lower mold, which includes a lower mold base, a support base, a lower punch and a bracket, the support base is fixed on the lower mold base, the lower punch is fixed on one side of the support base, the bracket is fixed on the lower mold base and is located in the extension direction of the lower punch, the top of the lower punch is provided with a supporting surface that can fit with the inner wall of the pipe to be processed, the top of the supporting surface is provided with a punch sleeve, the punch sleeve is aligned with the punch up and down, and a ball head locating pin is also provided on the supporting surface, the ball head locating pin intersects with the axis of the punch sleeve and the included angle is 120°.

[0007] Furthermore, the lower punch is in the shape of an elongated strip, and the upper surface of the lower punch is arranged in an arc shape to form the supporting surface.

[0008] Furthermore, the diameter of the support surface is equal to the inner diameter of the pipe to be processed, and the central angle of the support surface is greater than 240°.

[0009] Furthermore, the lower punch is a cylinder with an arched cross-section.

[0010] Furthermore, a spherical positioning head is provided at the upper end of the ball head positioning pin, and the diameter of the spherical positioning head is larger than the diameter of the hole to be processed into three equal parts.

[0011] Furthermore, the support seat is L-shaped, and its bottom surface is in contact with and fixedly connected to the upper surface of the lower die seat, and the lower punch is perpendicular to and fixedly connected to the side surface of the support seat.

[0012] Furthermore, an arc-shaped positioning groove is provided at the front end of the bracket, and when one end of the pipe to be processed is sleeved on the lower punch, the other end can be embedded in the positioning groove.

[0013] Furthermore, there are multiple punches, and the multiple punches are located on the same straight line. There are multiple punch sleeves, and the multiple punch sleeves are located on the same straight line. The axis of the ball head locating pin intersects with the axis of one of the punch sleeves and the included angle is 120°.

[0014] Furthermore, a vertical through-hole is provided on the top of the lower punch, the punch sleeve is embedded and fixed at the upper end of the through-hole, and an anti-rotation pin is embedded between the outer wall of the punch sleeve and the inner wall of the through-hole.

[0015] Furthermore, the upper mold also includes a punch fixing plate, a pressure plate, a plurality of unloading bolts and a plurality of springs. The lower surface of the upper mold base is connected to the pressure plate via a plurality of unloading bolts. The upper end of each spring is connected to the lower surface of the upper mold base, and the lower end is connected to the pressure plate. The punch fixing plate is arranged between the pressure plate and the upper mold base, and the upper end of the punch fixing plate is connected to the lower surface of the upper mold base. The punch can slidably pass through the pressure plate and the upper end is connected to the punch fixing plate.

[0016] The beneficial effects brought about by the technical solution provided by the embodiment of the utility model are:

[0017] The utility model discloses a device for punching and processing three-divided holes of a pipe fitting. Firstly, a first three-divided hole is punched out on the pipe fitting by cooperation of a punch and a punch sleeve; then, the pipe fitting is rotated 120° so that a ball head positioning pin is pushed into the first three-divided hole, and then, a second three-divided hole can be punched out on the pipe fitting by cooperation of the punch and the punch sleeve; the pipe fitting is rotated 120° again so that the ball head positioning pin is pushed into the second three-divided hole, and a third three-divided hole can be punched out on the pipe fitting by cooperation of the punch and the punch sleeve; the three three-divided holes form a group of three-divided holes, the positioning is accurate, the sizes of the processed three-divided holes are stable and uniform, the positioning and processing are simple, and the processing efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a processing schematic diagram of a three-divided hole punching processing device for a pipe fitting of the utility model;

[0019] Figure 2 is a schematic diagram of the upper mold;

[0020] Figure 3 is a schematic diagram of the lower mold;

[0021] Figure 4 It is a schematic diagram of the installation of the lower punch and the support seat;

[0022] Figure 5 is a schematic diagram of the lower punch;

[0023] Figure 6 It is a schematic diagram of the distribution of three equally divided holes on the pipe fitting.

[0024] In the figure: 1. upper mold; 101. upper mold base; 102. punch; 103. pressure plate; 104. guide sleeve; 105. mold handle; 2. lower mold; 201. lower mold base; 202. support seat; 203. lower punch; 204. bracket; 205. punch sleeve; 206. positioning groove; 207. guide column; 208. supporting surface; 209. ball head positioning pin; 210. anti-rotation pin; 100. pipe fitting; 100a. three-equally divided hole. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the following will further describe the implementation of the utility model in conjunction with the accompanying drawings. The following is a preferred embodiment of the utility model among multiple possible embodiments, which is intended to provide a basic understanding of the utility model, but is not intended to confirm the key or decisive elements of the utility model or limit the scope of protection.

[0026] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0028] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0029] It should be further explained that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0030] Please refer to Figure 1 The embodiment of the utility model provides a device for punching and processing pipe fittings into three equal parts, which is used for Figure 6 The processing of the pipe 100 having a hole 100 a divided into three parts is shown, and mainly includes an upper mold 1 and a lower mold 2 .

[0031] like Figure 2 As shown, the upper die 1 mainly includes an upper die base 101 and a punch 102 disposed on the upper die base 101. The punch 102 is a cylinder, and the diameter of the punch 102 is approximately the same as the diameter of the three-divided hole 100a to be processed. The punch 102 is vertically arranged and installed at the lower part of the upper die base 101.

[0032] More specifically, the upper die 1 further comprises a punch 102 fixing plate, a pressure plate 103, a plurality of unloading bolts (not shown in the figure) and a plurality of springs. The upper die base 101 is arranged horizontally, the pressure plate 103 is arranged parallel to the lower side of the upper die base 101, the lower surface of the upper die base 101 is connected to the edge of the pressure plate 103 by a plurality of unloading bolts, the upper end of each spring is connected to the lower surface of the upper die base 101, and the lower end is connected to the pressure plate 103, the punch 102 fixing plate is arranged between the pressure plate 103 and the upper die base 101, and the upper end of the punch 102 fixing plate is connected to the lower surface of the upper die base 101, the punch 102 can slide through the pressure plate 103 and the upper end is connected to the punch 102 fixing plate.

[0033] like Figure 3 and 4 As shown, the lower mold 2 includes a lower mold base 201, a support base 202, a lower punch 203 and a bracket 204. The lower mold base 201 is arranged below the upper mold base 101. The support base 202 is fixed on the lower mold base 201, and the lower punch 203 is fixed on one side of the support base 202. As in this embodiment, the support base 202 is L-shaped, and its bottom surface is attached to and fixedly connected with the upper surface of the lower mold base 201, and the lower punch 203 is perpendicular to and fixedly connected with the side surface of the support base 202. The support base 202, the lower punch 203 and the lower mold base 201 can be fastened and connected by bolts, pins, etc., or can be connected by welding, etc.

[0034] like Figure 5As shown, the top of the lower punch 203 is provided with a support surface 208 that can fit with the inner wall of the pipe 100 to be processed. The diameter of the support surface 208 is equal to the inner diameter of the pipe 100 to be processed, and the lower punch 203 can pass through the pipe 100 to be processed, so that the support surface 208 fits and supports the inner wall of the upper part of the pipe 100 to be processed. The shape of the lower punch 203 can be flexibly set according to the inner diameter of the pipe 100 to be processed. Generally, the lower punch 203 is set to a long strip shape, and the upper surface of the lower punch 203 is set to an arc shape to form the support surface 208. In this embodiment, the lower punch 203 is a column with an arc-shaped cross section, and the upper surface of the column just serves as the support surface 208.

[0035] A punch sleeve 205 is provided on the top of the support surface 208, and the punch sleeve 205 is aligned with the punch 102 in the upper and lower parts. A vertical through-hole is provided on the top of the lower punch 203, and the punch sleeve 205 is embedded and fixed at the upper end of the through-hole. The axes of the punch sleeve 205, the through-hole and the punch 102 coincide. And an anti-rotation pin 210 is embedded between the outer wall of the punch sleeve 205 and the inner wall of the through-hole. Half of the anti-rotation pin 210 is embedded and fixed on the outer wall of the punch sleeve 205, and the other half is embedded and fixed on the inner wall of the through-hole. The anti-rotation pin 210 can limit the relative rotation between the punch 102 and the punch sleeve 205, so as to prevent the punch 102 from being offset after long-term use.

[0036] The support surface 208 is also provided with a ball head positioning pin 209, which is arranged along the diameter direction of the lower punch 203, and the ball head positioning pin 209 and the punch sleeve 205 are located on the same circumference, and the ball head positioning pin 209 intersects with the axis of the punch sleeve 205 at an angle of 120°. Since the support surface 208 is symmetrically arranged on the upper part of the lower punch 203, considering that the ball head positioning pin 209 can stably push into the processed three-equally divided hole 100a, the central angle of the support surface 208 is greater than 240°, so as to cover the position of the ball head positioning pin 209, and the support surface 208 near the ball head positioning pin 209 can be well fitted with the inner wall of the pipe 100 to be processed.

[0037] The ball head positioning pin 209 is generally composed of a positioning pin shaft and an elastic member. A guide hole is provided on the side of the lower punch 203, and the elastic member is arranged in the guide hole. The lower end of the ball head positioning pin 209 is inserted into the guide hole and connected to the elastic member. Preferably, a spherical positioning head is provided at the upper end of the ball head positioning pin 209, that is, a spherical positioning head is provided at the upper end of the ball head positioning pin 209, and the diameter of the spherical positioning head is larger than the diameter of the three-divided hole 100a to be processed. In this way, the spherical positioning head can more accurately push into the three-divided hole 100a processed on the pipe fitting 100, and better solves the gap between the rod-shaped positioning pin and the three-divided hole 100a, thereby ensuring the dimensional accuracy of the three-divided hole 100a.

[0038] The bracket 204 is fixed on the lower die base 201 and is located in the extension direction of the lower punch 203. The bracket 204 is used to support one end of the unprocessed three-divided hole 100a of the pipe 100 to be processed. Specifically, the front end of the bracket 204 is provided with an arc-shaped positioning groove 206, and the diameter of the positioning groove 206 is approximately equal to the outer diameter of the pipe 100 to be processed. When one end of the pipe 100 to be processed is sleeved on the lower punch 203, the other end can be embedded in the positioning groove 206.

[0039] The pipe fitting three-divided hole punching processing device is generally installed on a stamping machine, that is, the upper die 1 is installed on the stamping machine through the die handle 105 at the top and the lower die 2 is installed on the stamping machine through the lower die base 201. The upper die 1 is located above the lower die 2. Under the drive of the stamping machine, the upper die 1 is vertically lifted and lowered. In order to ensure the stable vertical movement of the upper die base 101, the upper die base 101 is provided with a guide sleeve 104, and the lower die base 201 is provided with a guide column 207. The guide column 207 is inserted into the guide sleeve 104 and can slide up and down.

[0040] like Figure 1 and 6 As shown, the process of processing the three-divided hole 100a by the pipe fitting three-divided hole punching processing device is as follows:

[0041] First, one end of the pipe 100 to be processed is sleeved on the lower punch 203, so that the supporting surface 208 of the lower punch 203 is in contact with the inner wall of the upper part of the pipe 100 to be processed, and the other end is supported on the positioning groove 206 on the bracket 204. The inner wall of the pipe 100 to be processed squeezes the ball head positioning pin 209 to complete the positioning of the pipe 100 to be processed; the upper die seat 101 is driven downward, the pressure plate 103 presses the upper surface of the pipe 100 to be processed, the spring is compressed, and the punch 102 extends out of the pressure plate 103 to punch through the upper part of the pipe 100 to be processed and punch into the punch sleeve 205, and the first three-divided hole 100a is punched out on the pipe 100 to be processed.

[0042] Then, the upper die seat 101 is driven upward to reset the punch 102, and the pipe 100 to be processed is rotated 120°, so that the ball head positioning pin 209 is just pushed into the first three-divided hole 100a; then the upper die seat 101 is driven downward, and the punch 102 punches through the upper part of the pipe 100 to be processed and punches into the punch sleeve 205, punching out the second three-divided hole 100a on the pipe 100 to be processed;

[0043] Finally, the upper die seat 101 is driven upward again to reset the punch 102, and the pipe 100 to be processed is rotated 120° again, so that the ball head positioning pin 209 is just pushed into the second three-divided hole 100a; the upper die seat 101 is driven downward again, and the punch 102 punches through the upper part of the pipe 100 to be processed and punches into the punch sleeve 205, punching out the third three-divided hole 100a on the pipe 100 to be processed; in this way, the three three-divided holes 100a form a group of three-divided holes 100a.

[0044] It should be noted that if the pipe 100 to be processed needs to process a group of three-divided holes 100a, the number of the punch 102 and the punch sleeve 205 can be set to one. If the pipe 100 to be processed needs to process multiple groups of three-divided holes 100a, each group of three-divided holes 100a requires one punch 102 and one punch sleeve 205, so the number of the punch 102 is multiple, the number of the punch sleeve 205 is multiple, the multiple punches 102 are located on the same straight line, the multiple punch sleeves 205 are located on the same straight line, and the axis of the ball head locating pin 209 intersects with the axis of one of the punch sleeves 205 and the angle is 120°.

[0045] In this article, the directional words such as front, back, top, and bottom involved are defined by the positions of the parts in the drawings and the positions of the parts relative to each other, just for the sake of clarity and convenience in expressing the technical solution. It should be understood that they are relative concepts and can change accordingly according to different ways of use and placement, and the use of the directional words should not limit the scope of protection claimed in this application.

[0046] In the absence of conflict, the above embodiments and features in the embodiments can be combined with each other. The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for punching and processing pipe fittings into three equal parts, characterized in that: include: An upper die, comprising an upper die base and a punch disposed on the upper die base; And a lower mold, which includes a lower mold base, a support base, a lower punch and a bracket, the support base is fixed on the lower mold base, the lower punch is fixed on one side of the support base, the bracket is fixed on the lower mold base and is located in the extension direction of the lower punch, the top of the lower punch is provided with a supporting surface that can fit with the inner wall of the pipe to be processed, the top of the supporting surface is provided with a punch sleeve, the punch sleeve is aligned with the punch up and down, and a ball head locating pin is also provided on the supporting surface, the ball head locating pin intersects with the axis of the punch sleeve and the included angle is 120°.

2. A device for punching and processing pipes into three equal holes as claimed in claim 1, characterized in that: The lower punch is in the shape of an elongated strip, and the upper surface of the lower punch is configured to be in an arc shape to form the supporting surface.

3. A device for punching and processing pipes into three equal holes as claimed in claim 2, characterized in that: The diameter of the support surface is equal to the inner diameter of the pipe to be processed, and the central angle of the support surface is greater than 240°.

4. A device for punching and processing pipes into three equal holes as claimed in claim 2 or 3, characterized in that: The lower punch is a column with an arcuate cross section.

5. A device for punching and processing pipes into three equal parts according to claim 1, characterized in that: A spherical positioning head is provided at the upper end of the ball head positioning pin, and the diameter of the spherical positioning head is larger than the diameter of the three-divided hole to be processed.

6. A device for punching and processing pipes into three equal holes as claimed in claim 1, characterized in that: The support seat is L-shaped, and its bottom surface is in contact with and fixedly connected to the upper surface of the lower die seat, and the lower punch is perpendicular to and fixedly connected to the side surface of the support seat.

7. A device for punching and processing pipes into three equal holes as claimed in claim 1, characterized in that: The front end of the bracket is provided with an arc-shaped positioning groove, and when one end of the pipe to be processed is sleeved on the lower punch, the other end can be embedded in the positioning groove.

8. A device for punching and processing pipes into three equal holes as claimed in claim 1, characterized in that: There are multiple punches, and the multiple punches are located on the same straight line. There are multiple punch sleeves, and the multiple punch sleeves are located on the same straight line. The axis of the ball head locating pin intersects with the axis of one of the punch sleeves and the angle is 120°.

9. A device for punching and processing pipes into three equal holes as claimed in claim 1, characterized in that: A vertical through hole is provided on the top of the lower punch, the punch sleeve is embedded and fixed at the upper end of the through hole, and an anti-rotation pin is embedded between the outer wall of the punch sleeve and the inner wall of the through hole.

10. The device for punching and processing pipe holes into three equal parts according to claim 1, characterized in that: The upper mold also includes a punch fixing plate, a pressure plate, multiple unloading bolts and multiple springs. The lower surface of the upper mold base is connected to the pressure plate by multiple unloading bolts. The upper end of each spring is connected to the lower surface of the upper mold base, and the lower end is connected to the pressure plate. The punch fixing plate is arranged between the pressure plate and the upper mold base, and the upper end of the punch fixing plate is connected to the lower surface of the upper mold base. The punch can slidably pass through the pressure plate and the upper end is connected to the punch fixing plate.

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