Blanking machining device for bisecting holes of pipe fitting

Abstract

The utility model provides a pipe fitting bisecting hole blanking processing device, and relates to the technical field of hole processing equipment. The lower die comprises a lower die base, a fixed cushion block, a movable cushion block and a ball head positioning pin; the lower male die can penetrate through the pipe fitting to be machined, one end of the lower male die is fixedly connected with the fixed cushion block, the other end of the lower male die can be supported on the movable cushion block, a supporting face is arranged at the top of the lower male die, a through hole is formed in the supporting face, a punching sleeve is arranged at the upper end of the through hole, the lower end of the through hole is vertically aligned with the ball positioning pin, and the punch is vertically aligned with the punching sleeve. The punching device has the advantages that the punch and the punching sleeve are matched to punch a first bisecting hole in the pipe fitting, then the pipe fitting is rotated to enable the positioning pin to be inserted into the first bisecting hole, the pipe fitting is rotated by 180 degrees, and then the punch and the punching sleeve are matched to exactly punch a second bisecting hole in the position, opposite to the first bisecting hole, of the pipe fitting. Positioning is accurate, positioning and machining are simple, and the machining 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 bisecting holes of a pipe fitting. 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 needs to be processed into a two-part hole as the installation hole. When drilling in batches using 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 installation hole cannot be guaranteed to be stable and uniform. In addition, when drilling a pipe fitting into two parts, in order to accurately locate the drilling position before drilling, it is necessary to mark the drilling position, and repositioning is required when switching the drilling position, resulting in low production efficiency. Utility Model Content

[0003] In view of this, in order to solve the above-mentioned problems existing in the drilling process of bisecting a hole in a pipe fitting, an embodiment of the utility model provides a punching process device for bisecting a hole in a pipe fitting.

[0004] The embodiment of the utility model provides a device for punching and processing a pipe by dividing a hole into two equal parts, comprising:

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

[0006] A lower mold, comprising a lower mold base, a fixed pad, a movable pad and a ball head positioning pin, wherein the lower mold base is arranged below the upper mold base, the fixed pad is fixedly arranged on the lower mold base, the movable pad is rotatably arranged on the lower mold base, and the ball head positioning pin is arranged on the lower mold base and located between the fixed pad and the movable pad;

[0007] And a lower punch, which can pass through the pipe to be processed, one end of the lower punch is fixedly connected to the fixed pad, and the other end can be supported on the movable pad, 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 supporting surface is provided with a vertical through hole, the upper end of the through hole is provided with a punch sleeve, the lower end of the through hole is aligned with the ball head locating pin up and down, and the punch is aligned with the punch sleeve up and down.

[0008] 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 and divided into two equal parts.

[0009] 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.

[0010] Furthermore, the lower punch is a rectangular parallelepiped with an upper surface protruding in an upward arc shape.

[0011] Furthermore, there are multiple punches, which are located on the same straight line, there are multiple punch sleeves, which are located on the same straight line, and the ball head locating pin is aligned with the lower end of the through hole.

[0012] 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.

[0013] Furthermore, the lower mold also includes a pad, which is fixedly arranged on the lower mold base and located between the fixed pad and the movable pad. The movable pad and the fixed pad have the same height and are higher than the pad. The ball head locating pin is arranged on the pad.

[0014] Furthermore, one end of the movable cushion block is rotatably connected to the lower die base via a rotating pin, and the other end is provided with a handle.

[0015] Furthermore, a plurality of lower fixing holes are provided at the bottom of one end of the lower punch, and a plurality of upper fixing holes are provided on the fixing pad. The lower fixing holes correspond to the upper fixing holes one by one, and the corresponding upper fixing holes and lower fixing holes are locked by fasteners.

[0016] Furthermore, the punch is a cylinder, the punch sleeve is cylindrical, the punch sleeve is embedded in 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.

[0017] The beneficial effects brought about by the technical solution provided by the embodiment of the utility model are as follows: a device for punching and processing a bisected hole of a pipe fitting of the utility model first punches out a first bisected hole on the pipe fitting by cooperating with a punch and a punch sleeve, then the pipe fitting is rotated so that the ball head positioning pin is pushed into the first bisected hole, the pipe fitting is rotated 180°, and then a second bisected hole can be punched out on the pipe fitting at a relative position to the first bisected hole by cooperating with a punch and a punch sleeve, the first bisected hole and the second bisected hole form a group of bisected holes, the positioning is accurate, the size of the processed bisected holes is stable and uniform, and the positioning and processing are simple, thereby improving the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a processing schematic diagram of a pipe bisecting hole punching processing device 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 die and the lower punch;

[0021] Figure 4 is a schematic diagram of the lower mold;

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

[0023] Figure 6 is a second schematic diagram of the lower punch;

[0024] Figure 7 It is a schematic diagram of the distribution of holes divided into two equal parts on the pipe fitting.

[0025] In the figure: 1. upper die; 101. upper die seat; 102. punch; 103. pressure plate; 104. upper limiter; 105. guide sleeve; 106. spring; 107. die handle; 108. punch fixing plate; 2. lower die; 201. lower die seat; 202. movable pad; 203. fixed pad; 204. ball head positioning pin; 205. pad; 206. lower limiter; 207. guide column; 208. rotating pin; 209. lower fixing hole; 210. handle; 3. lower punch; 301. supporting surface; 302. punch sleeve; 303. perforation; 304. anti-rotation pin; 305. upper fixing hole; 100. pipe fitting; 100a. bisecting hole. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] Please refer to Figure 1 and 7 The embodiment of the utility model provides a device for punching and cutting a hole into two equal parts of a pipe fitting, which mainly includes an upper die 1, a lower die 2 and a lower punch 3.

[0032] 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 bisecting hole 100a to be processed. The punch 102 is vertically arranged and installed at the lower part of the upper die base 101.

[0033] More specifically, the upper die 1 further includes a punch fixing plate 108, a pressure plate 103, a plurality of unloading bolts (not shown in the figure) and a plurality of springs 106. 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, and the lower surface of the upper die base 101 is connected to the edge of the pressure plate 103 through a plurality of unloading bolts. The springs 106 are dispersedly arranged between the upper die base 101 and the pressure plate 103, and the upper end of each spring 106 is connected to the lower surface of the upper die base 101 and the pressure plate 103. The punch fixing plate 108 is arranged between the pressure plate 103 and the upper die base 101, and the upper end of the punch fixing plate 108 is connected to the lower surface of the upper die base 101, and the punch 102 can slidably penetrate the pressure plate 103 and the upper end is connected to the punch fixing plate 108.

[0034] like Figure 3 and 4As shown, the lower mold 2 includes a lower mold base 201, and a fixed pad 203, a movable pad 202 and a ball head positioning pin 204 arranged on the lower mold base 201. The lower mold base 201 is arranged below the upper mold base 101 and is arranged parallel to and opposite to the upper mold base 101.

[0035] The fixed pad 203 is fixedly arranged on the lower die base 201, and the movable pad 202 is rotatably arranged on the lower die base 201. Here, one end of the movable pad 202 is rotatably connected to the lower die base 201 through a rotating pin 208, and the other end is provided with a handle 210. The movable pad 202 can rotate around the rotating pin 208, and the movable pad 202 can be rotated by the handle 210, so that the movable pad 202 is arranged opposite to the fixed pad 203.

[0036] The ball head positioning pin 204 is arranged on the lower die seat 201 and is located between the fixed cushion block 203 and the movable cushion block 202. The ball head positioning pin 204 can be vertically movable and lifted, and the ball head positioning pin 204 is coaxially arranged with the punch sleeve 302.

[0037] In some embodiments, the lower mold 2 also includes a pad 205, which is fixedly disposed on the lower mold base 201 and located between the movable pad 202 and the fixed pad 203. The movable pad 202 and the fixed pad 203 have the same height and are higher than the pad 205. The ball head positioning pin 204 is disposed on the pad 205.

[0038] The ball head positioning pin 204 is generally composed of a positioning pin shaft and an elastic member, a guide hole is provided on the pad 205, the elastic member is arranged in the guide hole, and the lower end of the ball head positioning pin 204 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 204, that is, a spherical positioning head is provided at the upper end of the spherical positioning head, and the diameter of the spherical positioning head is larger than the diameter of the bisecting hole 100a to be processed. In this way, the spherical positioning head can more accurately push into the bisecting hole 100a processed on the pipe fitting 100, and better solves the gap between the rod-shaped positioning pin and the bisecting hole 100a, thereby ensuring the dimensional accuracy of the bisecting hole 100a.

[0039] like Figure 5 and 6As shown, the lower punch 3 can pass through the pipe 100 to be processed, and the top of the lower punch 3 is provided with a support surface 301 that can fit with the inner wall of the pipe 100 to be processed. The lower punch 3 is in the shape of a long strip, and the upper surface of the lower punch 3 is arranged in an arc shape to form the support surface 301. The diameter of the support surface 301 is the same as the inner diameter of the pipe 100 to be processed, so that the support surface 301 can just fit and support the inner wall of the pipe 100 to be processed. In this embodiment, the lower punch 3 is a cuboid with an upper surface that bulges upward in an arc shape, and the upper surface of the lower punch 3 forms the support surface 301.

[0040] The support surface 301 is provided with a vertically penetrating through hole 303, and a punch sleeve 302 is provided at the upper end of the punch sleeve 303. The punch sleeve 302 is cylindrical and matches the punch 102. In order to prevent the punch sleeve 302 from rotating when the punch 102 is punched in, an anti-rotation pin 304 is embedded between the outer wall of the punch sleeve 302 and the inner wall of the through hole 303, and half of the anti-rotation pin 304 is embedded and fixed to the outer wall of the punch sleeve 302, and the other half is embedded and fixed to the inner wall of the through hole 303. The anti-rotation pin 304 can limit the relative rotation of the punch 102 and the punch sleeve 302, and prevent the punch 102 from deflecting after long-term use.

[0041] One end of the lower punch 3 is fixedly connected to the fixed cushion block 203, and the other end can be supported on the movable cushion block 202. The lower end of the through hole 303 is vertically aligned with the ball head positioning pin 204, and the punch 102 is vertically aligned with the punch sleeve 302, that is, the punch 102, the punch sleeve 302, the through hole 303 and the ball head positioning pin 204 are coaxially arranged.

[0042] The lower punch 3 is detachably connected to the fixed pad 203. A plurality of lower fixing holes 209 are provided at the bottom of one end of the lower punch 3. The fixed pad 203 is provided with a plurality of upper fixing holes 305. The lower fixing holes 209 correspond to the upper fixing holes 305 one by one, and the corresponding upper fixing holes 305 and lower fixing holes 209 are locked by fasteners. The fasteners are fastening bolts, which are provided on the bottom surface of the lower die base 201, pass through the lower die base 201 and connect the upper fixing holes 305 and the lower fixing holes 209, so as to lock the lower punch 3 and the fixed pad 203.

[0043] The pipe fitting bisecting 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 107 on 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. Driven by the stamping machine, the upper die 1 is vertically lifted and lowered to achieve upward and downward movement. The upper die base 101 moves downward, so that the punch 102 can be inserted into the punch sleeve 302 to punch out a bisecting hole 100a on the pipe 100 to be processed. In order to ensure the stable vertical movement of the upper die base 101, the upper die base 101 is provided with an upper limiter 104 and a guide sleeve 105, and the lower die base 201 is provided with a lower limiter 206 and a guide column 207. The guide column 207 is inserted into the guide sleeve 105 and can slide up and down, and the lower limiter 206 is docked with the upper limiter 104.

[0044] like Figure 1 and 7 As shown, the process of processing the bisecting hole 100a by the pipe bisecting hole punching processing device is as follows:

[0045] First, the movable cushion block 202 is rotated outwardly by the handle 210, and the pipe 100 to be processed is sleeved on the lower punch 3, so that the supporting surface 301 of the lower punch 3 is in contact with the inner wall of the upper part of the pipe 100 to be processed, and then the movable cushion block 202 is rotated inwardly by the handle 210, so that the outer end of the lower punch 3 is supported on the movable cushion block 202, and the bottom of the pipe 100 to be processed presses down the ball head positioning pin 204 to complete the positioning of the pipe 100 to be processed.

[0046] Next, the upper die base 101 is driven downward, the pressure plate 103 presses the upper surface of the pipe 100 to be processed, the spring 106 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 302, punching out the first bisecting hole 100a on the pipe 100 to be processed.

[0047] Afterwards, the upper die seat 101 is driven upward to reset the punch 102, and the movable cushion block 202 is rotated to rotate the pipe 100 to be processed, so that the upper end of the ball head positioning pin 204 presses against the first bisecting hole 100a. At this time, the pipe 100 to be processed is rotated 180°.

[0048] Then, 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 302, punching out a second bisected hole 100a on the pipe 100 to be processed, and the first bisected hole 100a and the second bisected hole 100a form a group of bisected holes 100a.

[0049] It should be noted that if the pipe 100 to be processed needs to process a group of bisecting holes 100a, the number of the punch 102 and the punch sleeve 302 can be set to one. If the pipe 100 to be processed needs to process multiple groups of bisecting holes 100a, each group of bisecting holes 100a requires one punch 102 and one punch sleeve 302, so the number of the punch 102 is multiple, the number of the punch sleeve 302 is multiple, the multiple punches 102 are located on the same straight line, the multiple punch sleeves 302 are located on the same straight line, the ball head positioning pin 204 is aligned with the lower end of one of the through holes 303, so that each punch sleeve 302 is aligned with one punch 102.

[0050] 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.

[0051] 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 cutting a pipe into two equal parts, characterized in that: include: An upper die, comprising an upper die base and a punch disposed on the upper die base; A lower mold, comprising a lower mold base, a fixed pad, a movable pad and a ball head positioning pin, wherein the lower mold base is arranged below the upper mold base, the fixed pad is fixedly arranged on the lower mold base, the movable pad is rotatably arranged on the lower mold base, and the ball head positioning pin is arranged on the lower mold base and located between the fixed pad and the movable pad; And a lower punch, which can pass through the pipe to be processed, one end of the lower punch is fixedly connected to the fixed pad, and the other end can be supported on the movable pad, 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 supporting surface is provided with a vertical through hole, the upper end of the through hole is provided with a punch sleeve, the lower end of the through hole is aligned with the ball head locating pin up and down, and the punch is aligned with the punch sleeve up and down.

2. A device for punching a pipe into two equal holes as claimed in 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 hole to be processed and divided into two equal parts.

3. A device for punching a pipe into two 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.

4. A pipe bisecting hole punching device as claimed in claim 1 or 2, characterized in that: The lower punch is a cuboid with an upper surface that bulges upward in an arc shape.

5. A pipe bisecting hole punching device 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 ball head locating pin is aligned with the lower end of the perforation.

6. A device for punching a pipe into two equal holes as claimed in 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.

7. A device for punching a pipe into two equal holes as claimed in claim 1, characterized in that: The lower mold also includes a pad, which is fixedly arranged on the lower mold base and located between the fixed pad and the movable pad. The movable pad is the same height as the fixed pad and is higher than the pad. The ball head locating pin is arranged on the pad.

8. A device for punching a pipe into two equal holes as claimed in claim 1, characterized in that: One end of the movable cushion block is rotatably connected to the lower die base through a rotating pin, and the other end is provided with a handle.

9. A device for punching a pipe into two equal holes as claimed in claim 1, characterized in that: A plurality of lower fixing holes are arranged at the bottom of one end of the lower punch, and a plurality of upper fixing holes are arranged on the fixing pad. The lower fixing holes correspond to the upper fixing holes one by one, and the corresponding upper fixing holes and lower fixing holes are locked by fasteners.

10. A pipe bisecting hole punching device as claimed in claim 1, characterized in that: The punch is a cylinder, the punch sleeve is cylindrical, the punch sleeve is embedded in 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.

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