Pipe fitting quartering hole blanking machining device

Abstract

The utility model provides a pipe fitting quartering hole blanking machining device, and relates to the technical field of hole machining equipment, the pipe fitting quartering hole blanking machining device comprises a first punching die and a second punching die, the first punching die comprises a first upper die, a first lower die and a first lower male die; the second punching die comprises a second upper die, a second lower die and a second lower male die. The punching die has the advantages that the first punching die is used for machining the two opposite quartering holes; and then the other two opposite quartering holes are machined through the second punching die, the four quartering holes form a group of quartering holes, positioning is accurate, the sizes of the machined quartering holes are stable and uniform, 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 device for punching and processing pipe fittings into four equal parts. 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 Fig.12 As shown, this type of pipe fitting is a solar photovoltaic panel mounting column. In order to achieve installation and fixation, four equally divided 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 four equally divided 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, in order to solve the above-mentioned problems existing in the drilling process of the pipe fitting into four equal parts, an embodiment of the utility model provides a punching process device for the pipe fitting into four equal parts.

[0004] The embodiment of the utility model provides a device for punching and processing pipe parts into four equal parts, comprising a first punching die and a second punching die;

[0005] The first punching die comprises a first upper die, a first lower die and a first lower punch, the first upper die comprises a first upper die seat and a first punch arranged on the first upper die seat; the first lower die comprises a first lower die seat, a first fixed pad, a first movable pad and a ball head positioning pin, the first lower die seat is arranged below the first upper die seat, the first fixed pad is fixedly arranged on the first lower die seat, the first movable pad is rotatably arranged on the first lower die seat, and the ball head positioning pin is arranged between the first fixed pad and the first movable pad; the first lower punch can pass through the pipe to be processed, one end of the first lower punch is fixedly connected to the first fixed pad, and the other end can be supported on the first movable pad, the top of the first lower punch is provided with a first supporting surface that can be fitted with the inner wall of the pipe to be processed, the first supporting surface is provided with a first through hole that passes vertically, the upper end of the first through hole is provided with a first punch sleeve, the lower end of the first through hole is aligned with the ball head positioning pin up and down, and the first punch is aligned with the first punch sleeve up and down;

[0006] The second punching die includes a second upper die, a second lower die and a second lower punch, the second upper die includes a second upper die base and a second punch arranged on the second upper die base; the second lower die includes a second lower die base, a second fixed pad and a second movable pad, the second lower die base is arranged below the second upper die base, the second fixed pad is fixedly arranged on the second lower die base, and the second movable pad is rotatably arranged on the second lower die base; the second lower punch can pass through the pipe to be processed, one end of the second lower punch is fixedly connected to the second fixed pad, and the other end can be supported on the second movable pad, the top of the second lower punch is provided with a second supporting surface that can be fitted with the inner wall of the pipe to be processed, the second supporting surface is provided with a second through-hole vertically passing through, the upper end of the second through-hole is provided with a second punch sleeve, the second punch is aligned with the second punch sleeve up and down, and the side of the second lower punch is provided with a positioning hole and a movable latch that can be plugged into the positioning hole.

[0007] Furthermore, the first supporting surface and the second supporting surface are both arc-shaped surfaces, and the diameter of the arc-shaped surfaces is the same as the inner diameter of the pipe to be processed.

[0008] Furthermore, the first lower punch and the second lower punch have the same external shape.

[0009] Furthermore, the first lower punch and the second lower punch are both rectangular parallelepipeds with upper surfaces protruding in an upward arc shape.

[0010] Furthermore, the number of the first punch, the first punch sleeve, the second punch and the second punch sleeve is the same, and multiple first punches are located on the same straight line, multiple first punch sleeves are located on the same straight line, the ball head locating pin is aligned with the lower end of one of the first through holes, multiple second punches are located on the same straight line, multiple second punch sleeves are located on the same straight line, and each second punch sleeve is aligned up and down with one of the second punches.

[0011] Furthermore, one end of the first movable pad is rotatably connected to the first lower die base via a first rotating pin, and the other end is provided with a first handle; one end of the second movable pad is rotatably connected to the second lower die base via a second rotating pin, and the other end is provided with a second handle.

[0012] Further, the first upper die also includes a first punch fixing plate, a first pressure plate, a plurality of first unloading bolts and a plurality of first springs, the lower surface of the first upper die seat is connected to the first pressure plate through the plurality of first unloading bolts, the upper end of each first spring is connected to the lower surface of the first upper die seat, and the lower end is connected to the first pressure plate, the first punch fixing plate is arranged between the first pressure plate and the first upper die seat, and the upper end of the first punch fixing plate is connected to the lower surface of the first upper die seat, the first punch can slidably penetrate the first pressure plate and the upper end is connected to the first punch fixing plate;

[0013] The second upper mold also includes a second punch fixing plate, a second pressure plate, a plurality of second unloading bolts and a plurality of second springs. The lower surface of the second upper mold base is connected to the second pressure plate via a plurality of second unloading bolts. The upper end of each second spring is connected to the lower surface of the second upper mold base, and the lower end is connected to the second pressure plate. The second punch fixing plate is arranged between the second pressure plate and the second upper mold base, and the upper end of the second punch fixing plate is connected to the lower surface of the second upper mold base. The second punch can slidably pass through the second pressure plate and the upper end is connected to the second punch fixing plate.

[0014] 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.

[0015] Furthermore, the lower surface of one end of the first lower punch is supported on the upper surface of the first fixed pad and locked by a first fastener, and the lower surface of one end of the second lower punch is supported on the upper surface of the second fixed pad and locked by a second fastener.

[0016] Furthermore, the movable latch is a stepped shaft, comprising a pin head, a limit shaft and a handle with successively increasing diameters, wherein the diameters of the limit shaft and the positioning hole are the same as the diameters of the quartered holes to be processed in the pipe to be processed.

[0017] The beneficial effects of the technical solution provided by the embodiment of the utility model are as follows: a device for punching and processing four-equal holes of a pipe fitting of the utility model first uses a first punching die to process two opposite four-equal holes: a first four-equal hole is punched out on the pipe fitting by the cooperation of a first punch and a first punch sleeve, then the pipe fitting is rotated so that the fixed ball head positioning pin is pushed into the first four-equal hole, the pipe fitting is rotated 180°, and then a second four-equal hole can be punched out on the pipe fitting at a relative position to the first four-equal hole by the cooperation of the first punch and the first punch sleeve; then the other two opposite four-equal holes are processed by a second punching die Hole: insert the second lower punch into the pipe processed by the first punching die, so that the movable pin passes through the first quarter hole and is inserted into the positioning hole, and the third quarter hole is punched out on the pipe by the cooperation of the second punch and the second punch sleeve, and then the pipe is rotated to make the movable pin pass through the second quarter hole and is inserted into the positioning hole, and then the fourth quarter hole can be punched out on the pipe at the relative position to the third quarter hole by the cooperation of the second punch and the second punch sleeve. In this way, the four quarter holes form a group of quarter holes with accurate positioning, stable and uniform size of the processed quarter holes, simple positioning and processing, and improved processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a processing schematic diagram of a first punching die of a pipe fitting quartering hole punching processing device of the utility model;

[0019] Figure 2 It is a processing schematic diagram of a second punching die of a pipe fitting quartering hole punching processing device of the utility model;

[0020] Figure 3 This is an exploded view of the first punching die;

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

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

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

[0024] Figure 7 is a second schematic diagram of the first lower punch;

[0025] Figure 8 This is an exploded view of the second punching die;

[0026] Fig. 9 is a schematic diagram of the second upper mold;

[0027] Fig.10 is a schematic diagram of the second lower mold;

[0028] Fig.11 is a schematic diagram of the second lower punch;

[0029] Fig.12 It is a schematic diagram of the distribution of four equally divided holes on the pipe fitting.

[0030] In the figure: 100, first punching die; 101, first upper die; 102, first lower die; 103, first lower punch; 104, first upper die seat; 105, first punch; 106, first pressure plate; 107, first punch fixing plate; 108, first spring; 109, upper limiter; 110, guide sleeve; 111, first die handle; 112, first lower die seat; 113, first fixed pad; 114, first movable pad; 115, ball head positioning pin; 116, pad; 117, lower limiter; 118, guide column; 119, first rotating pin; 120, first lower fixing hole; 121, first handle; 122, first supporting surface; 123, first punch sleeve; 124, first perforation; 125, first anti-rotation Pin; 126, first upper fixed hole; 200, second punching die; 201, second upper die; 202, second lower die; 203, second lower punch; 204, second upper die seat; 205, second pressure plate; 206, second punch; 207, second punch fixing plate; 208, second spring; 209, second lower die seat; 210, second fixed pad; 211, second movable pad; 212, second lower fixed hole; 213, second rotating pin; 214, second handle; 215, second supporting surface; 216, second punch sleeve; 217, movable latch; 218, pin head; 219, limiting shaft; 220, handle; 221, second die handle; 222, positioning hole; 300, pipe fitting; 300a, quartered hole. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Please refer to Figure 1-12 The embodiment of the utility model provides a device for punching and cutting holes in pipe fittings into four equal parts, which mainly includes a first punching die 100 and a second punching die 200.

[0037] like Figure 3 As shown, the first punching die 100 mainly includes a first upper die 101 , a first lower die 102 and a first lower punch 103 .

[0038] like Figure 4 As shown, the first upper die 101 includes a first upper die base 104 and a first punch 105 disposed on the first upper die base 104. Specifically, the first punch 105 is a cylinder, and the diameter of the first punch 105 is approximately the same as the diameter of the quartered hole 300a to be processed. The first punch 105 is vertically disposed and installed at the lower part of the first upper die base 104.

[0039] More specifically, the first upper die 101 further includes a first punch fixing plate 106, a first pressing plate 106, a plurality of first unloading bolts (not shown in the figure) and a plurality of first springs 108. The first upper die base 104 is arranged horizontally, the first pressing plate 106 is arranged parallel to the lower side of the first upper die base 104, the lower surface of the first upper die base 104 is connected to the first pressing plate 106 through a plurality of first unloading bolts, and each of the first springs 108 is dispersedly arranged between the first upper die base 104 and the first pressing plate 106, and each of the first springs 108 is connected to the lower surface of the first upper die base 104 at the upper end and to the first pressing plate 106 at the lower end. The first punch fixing plate 106 is arranged between the first pressing plate 106 and the first upper die base 104, and the upper end of the first punch fixing plate 106 is connected to the lower surface of the first upper die base 104, and the first punch 105 can slide through the first pressing plate 106 and the upper end is connected to the first punch fixing plate 106.

[0040] like Figure 5 As shown, the first lower mold 102 includes a lower mold base, and a first fixed cushion block 113, a first movable cushion block 114 and a ball head positioning pin 115 arranged on the first lower mold base 112. The first lower mold base 112 is arranged below the first upper mold base 104 and is arranged parallel to and opposite to the first upper mold base 104.

[0041] The first fixed pad 113 is fixedly disposed on the first lower die base 112, and the first movable pad 114 is rotatably disposed on the first lower die base 112. Here, one end of the first movable pad 114 is rotatably connected to the first lower die base 112 via a first rotating pin 119, and the other end is provided with a first handle 121. The first movable pad 114 can rotate around the first rotating pin 119, and the first movable pad 114 can be rotated by the first handle 121, so that the first movable pad 114 is disposed opposite to the first fixed pad 113.

[0042] The ball head positioning pin 115 is disposed on the first lower die seat 112 and is located between the first fixed cushion block 113 and the first movable cushion block 114. The ball head positioning pin 115 can be vertically movable and raised and lowered, and the ball head positioning pin 115 is coaxially disposed with the first punch sleeve 123.

[0043] In some embodiments, the first lower mold 102 also includes a pad 116, which is fixedly disposed on the first lower mold base 112 and located between the first movable pad 114 and the first fixed pad 113. The first movable pad 114 and the first fixed pad 113 have the same height and are higher than the pad 116. The ball head positioning pin 115 is disposed on the pad.

[0044] The ball head positioning pin 115 is generally composed of a positioning pin shaft and an elastic member, a guide hole is provided on the pad 116, the elastic member is arranged in the guide hole, and the lower end of the ball head positioning pin 115 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 115, that is, a spherical positioning head is provided at the upper end of the ball head positioning pin 115, and the diameter of the spherical positioning head is larger than the diameter of the quartered hole 300a to be processed. In this way, the spherical positioning head can more accurately push into the quartered hole 300a processed on the pipe fitting 300, and better solves the gap between the rod-shaped positioning pin and the quartered hole 300a, thereby ensuring the dimensional accuracy of the quartered hole 300a.

[0045] like Figure 6 and 7As shown, the first lower punch 103 can pass through the pipe 300 to be processed, and a support surface that can fit with the inner wall of the pipe 300 to be processed is provided on the top of the first lower punch 103. The first lower punch 103 is in the shape of a long strip, and the upper surface of the first lower punch 103 is arranged in an arc shape to form the first support surface 122, and the diameter of the first support surface 122 is the same as the inner diameter of the pipe 300 to be processed, so that the first support surface 122 can just fit and support the inner wall of the pipe 300 to be processed. In this embodiment, the first lower punch 103 is a rectangular parallelepiped with an upper surface protruding in an arc shape upward, and the upper surface of the first lower punch 103 forms the first support surface 122.

[0046] The first support surface 122 is provided with a first through hole 124 that passes vertically therethrough, and the upper end of the first through hole 124 is provided with a first punch sleeve 123, which is cylindrical and matches the first punch 105. In order to prevent the first punch sleeve 123 from rotating when the first punch 105 punches in, an anti-rotation pin is embedded between the outer wall of the first punch sleeve 123 and the inner wall of the first through hole 124, and half of the first anti-rotation pin 125 is embedded and fixed to the outer wall of the first punch sleeve 123, and the other half is embedded and fixed to the inner wall of the first through hole 124. The first anti-rotation pin 125 can limit the relative rotation of the first punch 105 and the first punch sleeve 123, and prevent the first punch 105 from deflecting after long-term use.

[0047] One end of the first lower punch 103 is fixedly connected to the first fixed cushion block 113, and the other end can be supported on the first movable cushion block 114. The lower end of the first through hole 124 is vertically aligned with the first ball head positioning pin 115, and the first punch 105 is vertically aligned with the first punch sleeve 123, that is, the first punch 105, the first punch sleeve 123, the first through hole 124 and the ball head positioning pin 115 are coaxially arranged.

[0048] The first lower punch 103 is detachably connected to the first fixing pad 113. A plurality of lower fixing holes are provided at the bottom of one end of the first lower punch 103. A plurality of upper fixing holes are provided on the first fixing pad 113. The first lower fixing holes 120 correspond to the first upper fixing holes 126 one by one, and the corresponding first upper fixing holes 126 and lower fixing holes are locked by a first fastener. The first fastener is a fastening bolt, which is provided on the bottom surface of the first lower die base 112, passes through the first lower die base 112 and connects the first upper fixing hole 126 and the first lower fixing hole 120, thereby locking the first lower punch 103 and the first fixing pad 113.

[0049] The first die 100 is generally installed on a first stamping machine, that is, the first upper die 101 is installed on the first stamping machine through the first die handle 111 at the top and the first lower die 102 is installed on the first stamping machine through the first lower die seat 112. The first upper die 101 is located above the first lower die 102. Driven by the first stamping machine, the first upper die 101 is vertically lifted and lowered. The first stamping machine can drive the first upper die seat 104 downward, so that the first punch 105 can be inserted into the first punch sleeve 123 to punch out two opposite quartered holes 300a on the pipe 300 to be processed.

[0050] In order to ensure stable vertical movement of the first upper mold base 104, the first upper mold base 104 is provided with an upper limiter 109 and a guide sleeve 110, and the first lower mold base 112 is provided with a lower limiter 117 and a guide column 118. The guide column 118 is inserted into the guide sleeve 110 and can slide up and down, and the lower limiter 117 is connected to the upper limiter 109.

[0051] like Figure 8 As shown, the second punching die 200 mainly includes a second upper die 201 , a second lower die 202 and a second lower punch 203 .

[0052] like Fig. 9 As shown, the structure of the second upper mold 201 is approximately the same as that of the first upper mold 101 .

[0053] The second upper die 201 includes a second upper die base 204 and a second punch 206 disposed on the second upper die base 204. Specifically, the second punch 206 is a cylinder, and the diameter of the second punch 206 is approximately the same as the diameter of the quartered hole 300a to be processed. The second punch 206 is vertically disposed and installed at the lower part of the second upper die base 204.

[0054] More specifically, the second upper die 201 further includes a second punch fixing plate 205, a second pressing plate 205, a plurality of second unloading bolts (not shown in the figure) and a plurality of second springs 208. The second upper die base 204 is arranged horizontally, the second pressing plate 205 is arranged parallel to the lower side of the second upper die base 204, the lower surface of the second upper die base 204 is connected to the second pressing plate 205 by a plurality of second unloading bolts, each of the second springs 208 is dispersedly arranged between the second upper die base 204 and the second pressing plate 205, the upper end of each second spring 208 is connected to the lower surface of the second upper die base 204, and the lower end is connected to the second pressing plate 205. The second punch fixing plate 205 is arranged between the second pressing plate 205 and the second upper die base 204, and the upper end of the second punch fixing plate 205 is connected to the lower surface of the second upper die base 204, the second punch 206 can slidably penetrate the second pressing plate 205 and the upper end is connected to the second punch fixing plate 205.

[0055] like Fig.10 As shown, the second lower mold 202 includes a second lower mold base 209, and a second fixed cushion block 210 and a second movable cushion block 211 disposed on the second lower mold base 209. The second lower mold base 209 is disposed below the second upper mold base 204 and is disposed parallel to and opposite to the second lower mold base 209.

[0056] The second fixed pad 210 is fixedly disposed on the second lower die base 209, and the second movable pad 211 is rotatably disposed on the second lower die base 209. The second movable pad 211 and the second fixed pad 210 have the same height. Here, one end of the second movable pad 211 is rotatably connected to the second lower die base 209 via a second rotating pin 213, and the other end is provided with a second handle 214. The second movable pad 211 can rotate around the second rotating pin 213, and the second movable pad 211 can be rotated via the second handle 214, so that the second movable pad 211 is disposed opposite to the second fixed pad 210.

[0057] like Fig.11As shown, the second lower punch 203 can pass through the pipe 300 to be processed, and the top of the second lower punch 203 is provided with a second support surface 215 that can fit with the inner wall of the pipe 300 to be processed. The second lower punch 203 is in the shape of a long strip, and the upper surface of the second lower punch 203 is set in an arc shape to form the second support surface 215. The diameter of the second support surface 215 is the same as the inner diameter of the pipe 300 to be processed, so that the second support surface 215 can just fit and support the inner wall of the pipe 300 to be processed. In this embodiment, the second lower punch 203 is a rectangular parallelepiped with an upper surface protruding in an arc shape upward, and the upper surface of the second lower punch 203 forms the second support surface 215.

[0058] The second support surface 215 is provided with a second through hole that runs vertically therethrough, and the upper end of the second through hole is provided with a second punch sleeve 216, which is cylindrical and matches the second punch 206. In order to prevent the second punch sleeve 216 from rotating when the second punch 206 punches in, an anti-rotation pin is embedded between the outer wall of the second punch sleeve 216 and the inner wall of the second through hole, and half of the second anti-rotation pin is embedded and fixed to the outer wall of the second punch sleeve 216, and the other half is embedded and fixed to the inner wall of the second through hole. The second anti-rotation pin can limit the relative rotation of the second punch 206 and the second punch sleeve 216, and prevent the second punch 206 from deflecting after long-term use.

[0059] One end of the second lower punch 203 is fixedly connected to the second fixed pad 210, and the other end can be supported on the second movable pad 211. The second punch 206 is aligned with the second punch sleeve 216, that is, the second punch 206, the second punch sleeve 216, and the second perforation are coaxially arranged.

[0060] The second lower punch 203 is detachably connected to the second fixing pad 210. A plurality of lower fixing holes are provided at the bottom of one end of the second lower punch 203. A plurality of upper fixing holes are provided on the second fixing pad 210. The second lower fixing holes 212 correspond to the second upper fixing holes one by one, and the corresponding second upper fixing holes and lower fixing holes are locked by a second fastener. The second fastener is a fastening bolt, which is provided on the bottom surface of the second lower die base 209, passes through the second lower die base 209 and connects the second upper fixing hole and the second lower fixing hole 212, thereby locking the second lower punch 203 and the second fixing pad 210.

[0061] The side of the second support block is provided with a positioning hole 222 and a movable latch 217 that can be plugged into the positioning hole 222. The positioning hole 222 is horizontally arranged, the axis of the positioning hole 222 intersects the axis of the punch sleeve vertically, and the diameter of the positioning hole 222 is the same as the diameter of the quartered hole 300a to be processed in the pipe 300 to be processed.

[0062] The movable latch 217 can be inserted into the positioning hole 222 after passing through the four-divided hole 300a processed on the pipe 300 to position the pipe 300. In order to facilitate the insertion and extraction of the movable pin shaft from the positioning hole 222, the movable latch 217 in this embodiment is a stepped shaft, including a pin head 218, a limiting shaft 219 and a handle 220 with successively increasing diameters, wherein the diameters of the limiting shaft 219 and the positioning hole 222 are the same as the diameters of the four-divided hole 300a to be processed on the pipe 300 to be processed, and the movable latch 217 is inserted into the positioning hole 222 after passing through the four-divided hole 300a processed on the pipe 300, and the limiting shaft 219, the positioning hole 222 and the processed four-divided hole 300a are coaxially arranged, and the outer wall of the limiting shaft 219 just fits and contacts with the hole wall of the positioning hole 222 and the hole wall of the processed four-divided hole 300a at the same time.

[0063] The second die 200 is generally installed on a second stamping machine, that is, the second upper die 201 is installed on the second stamping machine through the second die handle 221 at the top and the second lower die 202 is installed on the second stamping machine through the second lower die seat 209. The second upper die 201 is located above the second lower die 202. Under the drive of the second stamping machine, the second upper die 201 is vertically lifted and lowered. The second stamping machine can drive the second upper die seat 204 downward, so that the second punch 206 can be inserted into the second punch sleeve 216 to punch out two other opposite quartered holes 300a on the pipe 300 to be processed.

[0064] In order to ensure the second upper die base 204 to move vertically stably, similar to the first punching die 100 , the second upper die base 204 and the second lower die base 209 are also connected by a limiter, a guide column 118 and a guide sleeve 110 .

[0065] like Figure 1 , 2 As shown in FIG. 12 , when the pipe fitting quartered hole punching processing device processes the quartered hole 300a, the first punching die 100 first punches two oppositely arranged quartered holes 300a on the pipe fitting 300 to be processed, and then the second punching die 200 punches the other two oppositely arranged quartered holes 300a on the pipe fitting 300 to be processed. The specific process is as follows:

[0066] First, the first movable pad 114 is rotated outward, and the pipe 300 to be processed is sleeved on the first lower punch 103, so that the first supporting surface 122 of the first lower punch 103 fits with the inner wall of the upper part of the pipe 300 to be processed, and then the first movable pad 114 is rotated inward so that the two ends of the first lower punch 103 are respectively supported on the first fixed pad 113 and the first movable pad 114, and the bottom of the pipe 300 to be processed presses down the ball head positioning pin 115 to complete the positioning of the pipe 300 to be processed; the first upper die seat 104 is driven downward, and the first punch 105 punches through the upper part of the pipe 300 to be processed and punches into the first punch sleeve 123, and the first quarter-divided hole 300a is punched out on the pipe 300 to be processed.

[0067] Afterwards, the first upper die holder 104 is driven upward to reset the first punch 105, and the pipe 300 to be processed is rotated so that the upper end of the ball head positioning pin 115 passes through the first quarter hole 300a and is inserted into the lower end of the first through hole 124. At this time, the pipe 300 to be processed is rotated 180°. The first upper die holder 104 is driven downward again, and the first punch 105 punches through the upper part of the pipe 300 to be processed and punches into the first punch sleeve 123, punching out a second quarter hole 300a on the pipe 300 to be processed.

[0068] Next, the second movable pad 211 is rotated outward, and the pipe 300 to be processed with two quartered holes 300a is sleeved on the second lower punch 203, so that the second supporting surface 215 of the second lower punch 203 fits with the inner wall of the upper part of the pipe 300 to be processed, and then the second movable pad 211 is rotated inward so that the two ends of the second lower punch 203 are respectively supported on the second fixed pad 210 and the second movable pad 211, and the movable latch 217 is inserted into the positioning hole 222 through the first quartered hole 300a to complete the positioning of the pipe 300 to be processed, and the second upper die seat 204 is driven downward, and the second punch 206 punches through the upper part of the pipe 300 to be processed and punches into the second punch sleeve 216, punching out the third quartered hole 300a on the pipe 300 to be processed.

[0069] Finally, the second upper die holder 204 is driven upward to reset the second punch 206, the movable latch 217 is pulled out, and the pipe 300 to be processed is rotated 180°, and the movable latch 217 is inserted into the positioning hole 222 through the second quarter hole 300a, and the second support surface 215 of the second lower punch 203 is fitted with the inner wall of the pipe 300 to be processed, and the two ends of the second lower punch 203 are supported on the second fixed pad 210 and the second movable pad 211 respectively, so as to complete the positioning of the pipe 300 to be processed; the second upper die holder 204 is driven downward again, and the second punch 206 punches through the upper part of the pipe 300 to be processed and punches into the second punch sleeve 216, punching out the fourth quarter hole 300a on the pipe 300 to be processed. In this way, the four quarter holes 300a form a group of quarter holes 300a on the circumference of the pipe 300.

[0070] It should be noted that if the pipe 300 to be processed needs to process a group of four-divided holes 300a, the number of the first punch 105 and the first punch sleeve 123 can be set to one. Since each group of four-divided holes 300a requires one first punch 105, one first punch sleeve 123, one second punch 206 and one second punch sleeve 216, when the pipe 300 to be processed needs to process multiple groups of four-divided holes 300a, the number of the first punch 105, the first punch sleeve 123, the second punch 206 and the second punch sleeve 216 are the same, and multiple of them are provided.

[0071] At this time, a plurality of the first punches 105 are located on the same straight line, a plurality of the first punch sleeves 123 are located on the same straight line, each of the first punch sleeves 123 is vertically aligned with a first punch 105, and the ball head positioning pin 115 is aligned with the lower end of a first through hole 124. Similarly, a plurality of the second punches 206 are located on the same straight line, a plurality of the second punch sleeves 216 are located on the same straight line, each of the second punch sleeves 216 is vertically aligned with a second punch 206, and the movable latch 217 can be inserted into the positioning hole 222.

[0072] 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.

[0073] 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 pipes into four equal holes, characterized in that: It includes a first punching die and a second punching die; The first punching die comprises a first upper die, a first lower die and a first lower punch, the first upper die comprises a first upper die seat and a first punch arranged on the first upper die seat; the first lower die comprises a first lower die seat, a first fixed pad, a first movable pad and a ball head positioning pin, the first lower die seat is arranged below the first upper die seat, the first fixed pad is fixedly arranged on the first lower die seat, the first movable pad is rotatably arranged on the first lower die seat, and the ball head positioning pin is arranged between the first fixed pad and the first movable pad; the first lower punch can pass through the pipe to be processed, one end of the first lower punch is fixedly connected to the first fixed pad, and the other end can be supported on the first movable pad, the top of the first lower punch is provided with a first supporting surface that can be fitted with the inner wall of the pipe to be processed, the first supporting surface is provided with a first through hole that passes vertically, the upper end of the first through hole is provided with a first punch sleeve, the lower end of the first through hole is aligned with the ball head positioning pin up and down, and the first punch is aligned with the first punch sleeve up and down; The second punching die includes a second upper die, a second lower die and a second lower punch, the second upper die includes a second upper die base and a second punch arranged on the second upper die base; the second lower die includes a second lower die base, a second fixed pad and a second movable pad, the second lower die base is arranged below the second upper die base, the second fixed pad is fixedly arranged on the second lower die base, and the second movable pad is rotatably arranged on the second lower die base; the second lower punch can pass through the pipe to be processed, one end of the second lower punch is fixedly connected to the second fixed pad, and the other end can be supported on the second movable pad, the top of the second lower punch is provided with a second supporting surface that can be fitted with the inner wall of the pipe to be processed, the second supporting surface is provided with a second through-hole vertically passing through, the upper end of the second through-hole is provided with a second punch sleeve, the second punch is aligned with the second punch sleeve up and down, and the side of the second lower punch is provided with a positioning hole and a movable latch that can be plugged into the positioning hole.

2. A device for punching and processing pipe parts into four equal parts according to claim 1, characterized in that: The first supporting surface and the second supporting surface are both arc-shaped surfaces, and the diameter of the arc-shaped surfaces is the same as the inner diameter of the pipe to be processed.

3. A device for punching and processing pipe parts into four equal parts according to claim 2, characterized in that: The first lower punch and the second lower punch have the same outer shape.

4. A device for punching and processing pipe parts into four equal parts according to claim 2 or 3, characterized in that: The first lower punch and the second lower punch are both rectangular parallelepipeds with upper surfaces protruding in an arc shape upward.

5. A device for punching and processing pipe parts into four equal parts according to claim 1, characterized in that: The number of the first punch, the first punch sleeve, the second punch and the second punch sleeve is the same, and multiple first punches are located on the same straight line, multiple first punch sleeves are located on the same straight line, the ball head locating pin is aligned with the lower end of one of the first through holes, multiple second punches are located on the same straight line, multiple second punch sleeves are located on the same straight line, and each second punch sleeve is aligned up and down with one of the second punches.

6. A device for punching and processing pipe parts into four equal parts according to claim 1, characterized in that: One end of the first movable pad is rotatably connected to the first lower die base via a first rotating pin, and the other end is provided with a first handle; one end of the second movable pad is rotatably connected to the second lower die base via a second rotating pin, and the other end is provided with a second handle.

7. A device for punching and processing pipe parts into four equal parts according to claim 1, characterized in that: The first upper die further comprises a first punch fixing plate, a first pressing plate, a plurality of first unloading bolts and a plurality of first springs, the lower surface of the first upper die seat is connected to the first pressing plate via the plurality of first unloading bolts, the upper end of each first spring is connected to the lower surface of the first upper die seat, and the lower end is connected to the first pressing plate, the first punch fixing plate is arranged between the first pressing plate and the first upper die seat, and the upper end of the first punch fixing plate is connected to the lower surface of the first upper die seat, the first punch can slidably penetrate the first pressing plate and the upper end is connected to the first punch fixing plate; The second upper mold also includes a second punch fixing plate, a second pressure plate, a plurality of second unloading bolts and a plurality of second springs. The lower surface of the second upper mold base is connected to the second pressure plate via a plurality of second unloading bolts. The upper end of each second spring is connected to the lower surface of the second upper mold base, and the lower end is connected to the second pressure plate. The second punch fixing plate is arranged between the second pressure plate and the second upper mold base, and the upper end of the second punch fixing plate is connected to the lower surface of the second upper mold base. The second punch can slidably pass through the second pressure plate and the upper end is connected to the second punch fixing plate.

8. A device for punching and processing pipe parts into four 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 hole to be processed and divided into two equal parts.

9. A device for punching and processing pipe parts into four equal parts according to claim 1, characterized in that: The lower surface of one end of the first lower punch is supported on the upper surface of the first fixed pad and locked by a first fastener, and the lower surface of one end of the second lower punch is supported on the upper surface of the second fixed pad and locked by a second fastener.

10. A device for punching and processing pipe parts into four equal parts according to claim 1, characterized in that: The movable latch is a stepped shaft, comprising a pin head, a limit shaft and a handle with successively increasing diameters, wherein the diameters of the limit shaft and the positioning hole are the same as the diameters of the quartered holes to be processed in the pipe to be processed.

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