CN108927448B - Stamping equipment - Google Patents
Stamping equipment Download PDFInfo
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- CN108927448B CN108927448B CN201811033128.2A CN201811033128A CN108927448B CN 108927448 B CN108927448 B CN 108927448B CN 201811033128 A CN201811033128 A CN 201811033128A CN 108927448 B CN108927448 B CN 108927448B
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- 238000004080 punching Methods 0.000 claims abstract description 91
- 239000000463 material Substances 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims description 27
- 239000002699 waste material Substances 0.000 claims description 24
- 238000007667 floating Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention discloses punching equipment, and relates to the field of rectangular pipe punching equipment. The rectangular pipe punching die comprises an upper die assembly and a lower die assembly, wherein the upper die assembly is fixed at the lower end of a sliding block on the punching machine, the lower die assembly is fixed on a lower die mounting seat on the punching machine, and the upper die assembly and the lower die assembly are arranged in an up-down matching way; the upper die assembly comprises an upper die plate, an upper die core seat and a plurality of upper die cores; the lower die assembly comprises a supporting seat, a lower die core and a plurality of baffles; the lower mold core is provided with a plurality of mold core holes matched with the upper mold core; after the upper die assembly and the lower die assembly are buckled up and down, a material containing cavity is formed at the outer edge of the lower die core. According to the invention, the lower die core is arranged in the lower die assembly, and the rectangular pipe is sleeved on the lower die core, so that the rectangular pipe is prevented from being deformed by stamping; the lower mold core also plays a guiding role in inserting the rectangular pipe, so that the deviation of the rectangular pipe is avoided, the punching positioning accuracy is high, and the punching quality is greatly improved.
Description
Technical Field
The invention relates to the field of rectangular pipe stamping equipment, in particular to stamping equipment.
Background
The rectangular pipe is a hollow square light thin-wall steel pipe with a section, also called a steel refrigeration bent section, and is generally formed by taking Q235 hot-rolled or cold-rolled strip steel or coiled plate as a base material, cold bending, forming and then high-frequency welding. Rectangular pipes are used in a wide range of fields such as construction, machine manufacturing, electrical engineering, etc., for example: rectangular pipes are required for shipbuilding, solar power generation supports, steel construction engineering, agriculture and chemical machinery, glass curtain walls, automobile chassis, airport buildings and the like.
At present, a method for processing a through hole on the outer wall of a steel pipe comprises the steps of inserting a pipe to be processed into a die core of a punching die, punching by a punch, and arranging an avoidance hole on the die core to enable the punch to pass through. The punching die is practical for small-caliber round steel pipes, and has small influence on the quality of the steel pipes; for rectangular pipes, the side walls of the rectangular pipes are extremely easy to deform when being punched by a punch, so that punching quality is affected, and even punching cannot be performed.
Through searching, chinese patent, publication number: CN206662045U, application publication date: the 2017 11 month 24 days discloses a pipe punching die which comprises a lower base plate, a lower die block, a first upper die block, an elastic block, a second upper die block, an upper base plate, a die shank, a guide post and a punch; the lower module is fixed on the lower backing plate, and the lower module has positioning groove, first go up the module have with positioning groove complex location arch, lower module have be used for holding the first recess of tubular product, first go up the module have be used for holding the second recess of tubular product, first go up the module and the second go up the module pass through elastic block fixed connection, the second go up the module with the drift is fixed go up the backing plate below, the die shank is fixed go up the backing plate top, the guide post is fixed the module below is gone up to the second, first go up the module have by guide post male guiding hole with by the drift male first through-hole. The round steel pipe can be processed by using the pipe punching die, but when the rectangular pipe is punched, the side wall of the rectangular pipe can deform, the punching quality is affected, and even the rectangular pipe cannot be punched.
Disclosure of Invention
Technical problem to be solved by the invention
Aiming at the problems that the side wall of a rectangular pipe is deformed, the punching quality is affected and even the punching cannot be performed when a pipe punching die in the prior art punches the rectangular pipe, the invention provides punching equipment for the punching processing method.
Technical proposal
In order to solve the problems, the technical scheme provided by the invention is as follows:
the punching equipment comprises a punching machine and a rectangular pipe punching die, wherein the rectangular pipe punching die comprises an upper die assembly and a lower die assembly, the upper die assembly is fixed at the lower end of a sliding block on the punching machine, the lower die assembly 200 is fixed on a lower die mounting seat on the punching machine, and the upper die assembly and the lower die assembly are arranged in an up-down matching way;
the upper die assembly comprises an upper die plate, an upper die core seat and a plurality of upper die cores, wherein the upper die plate is fixedly connected with the lower end of a sliding block on the punching machine, the upper die core seat is fixed at the bottom of the upper die plate, and the upper die cores are fixed at the lower ends of the upper die core seats;
the lower die assembly comprises a supporting seat, a lower die core and a plurality of baffles, wherein the supporting seat is fixed on a lower die mounting seat on the punching machine, the lower die core seat and the baffles are both fixed on the supporting seat, the baffles are symmetrically arranged on two sides of the lower die core seat, and the lower die core is fixed on the lower die core seat; the lower mold core is provided with a plurality of mold core holes matched with the upper mold core;
the outer edge of the lower mold core is provided with a material containing cavity.
Further, a positioning mechanism for adjusting punching quantity is further arranged on the lower die assembly, and the positioning mechanism is fixed on the supporting seat.
Further, the positioning mechanism comprises a supporting block and a positioning bolt, wherein the supporting block is vertically fixed on the supporting seat, and the positioning bolt is in threaded connection with the supporting block and extends to the side face of the lower mold core through the supporting block.
Further, the supporting seat comprises a bottom plate, a vertical plate and a lower template, wherein the vertical plate is symmetrically arranged and fixed on the bottom plate, the lower template is fixed at the upper end of the vertical plate, and a waste chamber is formed among the bottom plate, the vertical plate and the lower template;
the lower die core seat is fixed on the lower die plate, and the lower die core seat and the lower die plate are provided with a blanking hole communicated with the waste chamber.
Further, the edge of the upper template is provided with a plurality of lifting grooves.
Further, a guide post is arranged on the lower die assembly and is fixed on the supporting seat; the upper die assembly is provided with a guide sleeve matched with the guide post, and the guide sleeve is fixed at the bottom of the upper die plate.
Further, the upper die assembly further comprises a positioning plate, and the positioning plate is movably connected to the bottom of the upper die core seat through a plurality of floating connecting pieces; the upper mold core penetrates through the positioning plate and is in movable fit with the positioning plate.
Further, the floating connecting piece comprises a bolt and a spring, wherein the bolt penetrates through the upper die core seat to be in threaded connection with the positioning plate, and the bolt is in movable fit with the upper die core seat; the upper mold core seat is provided with relief holes corresponding to the bolts one by one, and the bolts can move up and down along the relief holes; the spring is sleeved on the bolt and is positioned between the upper die core seat and the positioning plate.
Further, a positioning column is arranged at the bottom of the positioning plate, and a positioning hole matched with the positioning column is formed in the lower mold core.
Further, the number of the positioning columns and the number of the positioning holes are more than two.
Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:
(1) According to the stamping equipment provided by the invention, the upper die assembly and the lower die assembly are buckled up and down, the material containing cavity is formed at the outer edge of the lower die core, and the rectangular pipe is supported by the lower die core, so that the side wall of the rectangular pipe is not easy to deform when being punched in the material containing cavity, and the punching quality is improved; in addition, the lower mold core plays a guiding role in inserting the rectangular pipe, so that the deviation of the rectangular pipe is avoided, and the punching positioning accuracy is improved;
(2) According to the stamping equipment provided by the invention, the depth of the rectangular pipe inserted into the material containing cavity can be controlled by adjusting the positioning mechanism at the corresponding position, so that the number of single punching holes is adjusted, and the stamping equipment can be suitable for production of products with different hole number requirements;
(3) The positioning mechanism comprises the supporting blocks and the positioning bolts, and the end parts of the positioning bolts are propped against or close to the side surfaces of the lower mold cores by adjusting the screwing depths of the positioning bolts on the positioning mechanisms at corresponding positions, so that the punching quantity can be adjusted, and the punching device is simple in structure, convenient and practical;
(4) According to the stamping equipment provided by the invention, the waste chamber is arranged in the supporting seat, the lower die core seat and the lower die plate are provided with the blanking holes communicated with the waste chamber, and waste generated by punching directly falls into the waste chamber through the blanking holes for storage, so that the waste is only required to be cleaned regularly, the time for cleaning the waste is saved, the labor intensity is reduced, and the safety of production is improved;
(5) According to the stamping equipment provided by the invention, the plurality of lifting grooves are formed in the edge of the upper die plate, so that the lifting rope or the fixed lifting hook can be conveniently bound during lifting, the assembly and the disassembly are convenient, and the safety is high;
(6) According to the stamping equipment provided by the invention, the guide sleeve and the guide column which are matched with each other are arranged between the upper die assembly and the lower die assembly, so that the positioning and guiding effects on the die assembly and the die opening movement of the upper die assembly can be realized, and the dislocation between the upper die assembly and the lower die assembly is avoided;
(7) According to the stamping equipment provided by the invention, the positioning plate is arranged on the upper die assembly, and is pressed on the upper side wall of the rectangular pipe during punching, the upper die core is limited by the positioning plate and is not easy to deviate during up-and-down movement, so that the positioning accuracy of the punching position is improved;
(8) According to the stamping equipment provided by the invention, the positioning column is arranged at the bottom of the positioning plate, the positioning hole matched with the positioning column is arranged on the lower mold core, and when the stamping equipment is used for stamping, the movement of the upper mold assembly is not easy to deviate due to the limitation of the matching of the positioning column and the positioning hole, so that the positioning accuracy of the stamping position is further improved;
(9) According to the stamping equipment provided by the invention, the number of the positioning columns 170 and the number of the positioning holes 232 matched with the positioning columns are more than two, so that the die assembly stability is good, and the punching precision is high.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of a rectangular tube punching die of the present invention;
FIG. 3, right side view of rectangular tube punching die of the present invention;
FIG. 4 is a front view of an upper die assembly of the present invention;
FIG. 5 is a bottom view of the upper die assembly of the present invention;
FIG. 6 is a right side view of the upper die assembly of the present invention;
FIG. 7 is a front view of a lower die assembly of the present invention;
FIG. 8 is a top view of the lower die assembly of the present invention;
fig. 9, right side view of the lower die assembly of the present invention.
In the accompanying drawings: 10. a punching machine; 11. a slide block; 12. a lower die mounting seat; 13. an electric control box; 100. an upper die assembly; 110. an upper template; 111. a lifting groove; 120. a die core seat is arranged; 121. a relief hole; 130. an upper mold core; 140. a positioning plate; 150. a floating connection; 151. a bolt; 152. a spring; 160. a guide sleeve; 170. positioning columns; 200. a lower die assembly; 210. a support base; 211. a bottom plate; 212. a vertical plate; 213. a lower template; 220. a lower die core seat; 230. a lower mold core; 231. a mold core hole; 232. positioning holes; 240. a baffle; 250. a positioning mechanism; 251. a support block; 252. positioning bolts; 260. a guide post; 270. a blanking hole; 280. a waste chamber; 300. a material containing cavity.
Detailed Description
For a further understanding of the present invention, the present invention will be described in detail with reference to the drawings and examples.
Example 1
As shown in fig. 1, 2 and 3, a punching apparatus includes a punching machine 10 and a rectangular tube punching die including an upper die assembly 100 and a lower die assembly 200; the upper die assembly 100 is fixed at the lower end of the sliding block 11 on the punching machine 10, the lower die assembly 200 is fixed on the lower die mounting seat 12 on the punching machine 10, and the upper die assembly 100 and the lower die assembly 200 are arranged in an up-down matching way, namely, the upper die assembly 100 moves vertically downwards and can be just buckled with the lower die assembly 200; the punching machine 10 drives a flywheel through a motor, and drives a crank link mechanism through a clutch and a transmission gear to enable the sliding block 11 to move up and down, and the sliding block 11 drives the upper die assembly 100 to move up and down to be buckled and separated with the lower die assembly 200, so that die assembly and die opening are realized.
As shown in fig. 1, 2 and 3, the upper die assembly 100 includes an upper die plate 110, an upper die core seat 120 and a plurality of upper die cores 130, wherein the upper die plate 110 is fixedly connected with the lower end of the sliding block 11, the upper die core seat 120 is fixed at the bottom of the upper die plate 110, and the upper die cores 130 are fixed at the lower end of the upper die core seat 120; the upper template 110 and the upper mold core base 120 are both flat plates; the upper mold core 130 may be cylindrical or polygonal, or may be cylindrical with other irregular cross sections according to different machined hole shapes, as shown in fig. 2 and 3, in this embodiment, the upper mold core 130 is cylindrical for machining a circular hole; the number and arrangement of the upper mold cores 130 may be one, two or more than three according to the number and positions of the machined holes, and when the number of the upper mold cores 130 is more than two, the upper mold cores 130 may be arranged along a straight line, or arranged in rows or irregularly, in this embodiment, as shown in fig. 2 and 3, the number of the upper mold cores 130 is two, and arranged along a straight line; in addition, in this embodiment, the sliding block 11, the upper template 110, the upper mold core base 120, and the plurality of upper mold cores 130 are sequentially and detachably and fixedly connected through bolts, so that disassembly, assembly and maintenance are facilitated.
As shown in fig. 1, 2 and 3, the lower die assembly 200 includes a support base 210, a lower die core base 220, a lower die core 230 and a plurality of baffles 240, wherein the support base 210 is fixed on a lower die mounting base 12 on the punching machine 10, the lower die core base 220 and the baffles 240 are both fixed on the support base 210, the baffles 240 are symmetrically arranged on two sides of the lower die core base 220, and the lower die core 230 is fixed on the lower die core base 220; the lower mold core 230 is provided with a plurality of mold core holes 231 matched with the upper mold core 130. As shown in fig. 3, the lower die core seat 220 is L-shaped, the lower die core 230 is rectangular, the rear end of the lower die core 230 is fixedly connected with the lower die core seat 220, and a feeding gap is formed between the lower die core seat 220 and the lower die core seat 220; the number of the baffles 240 is more than two, in this embodiment, four baffles 240 are symmetrically arranged on the left and right sides of the lower die core seat 220, two baffles 240 on the same side are arranged at intervals, and a feeding gap is reserved between the lower die core 230 and the baffles 240; in addition, in the present embodiment, the lower die mounting seat 12 is detachably connected with the support seat 210, the support seat 210 is detachably connected with the lower die core seat 220, the lower die core seat 220 is detachably connected with the lower die core 230, and the baffle 240 is detachably connected with the support seat 210 through bolts, so that the disassembly, the assembly and the maintenance are facilitated.
The outer edge of the lower mold core 230 is provided with a material containing cavity 300, the upper and lower and left and right side walls of the lower mold core 230 are inner walls of the material containing cavity 300, and after the upper mold assembly 100 and the lower mold assembly 200 are buckled up and down, the upper side surface of the lower mold core seat 220, the inner side surface of the baffle 240, and the lower end surface of the upper mold core seat 120 form the outer wall of the material containing cavity 300; the material containing cavity 300 is used for inserting the end to be processed of the rectangular pipe.
When punching rectangular pipes, after the rectangular pipe punching die is installed and debugged in the punching machine 10, the power supply of the punching machine 10 is started through the electric cabinet 13, then the end to be processed of the rectangular pipe is inserted into the material containing cavity 300, the punching machine 10 is manually operated, the sliding block 11 is driven to move downwards, the upper die assembly 100 is driven to move downwards to be matched with the die, punching is achieved, and then the upper die assembly 100 is driven to move upwards to be opened, so that punching is achieved.
According to the stamping equipment, the upper die assembly 100 and the lower die assembly 200 are buckled up and down, and then the outer edge of the lower die core 230 is provided with the material containing cavity 300, so that when a rectangular pipe is inserted into the material containing cavity 300 for punching, the side wall of the rectangular pipe is not easy to deform due to the support of the lower die core 230, and the punching quality is improved; in addition, the lower mold core 230 also plays a guiding role in the insertion of the rectangular tube, and avoids the deviation of the rectangular tube, thereby improving the punching positioning accuracy.
Example 2
The basic structure of the stamping apparatus of this embodiment is the same as that of embodiment 1, and is different from and improved in that, as shown in fig. 7, 8 and 9, a positioning mechanism 250 for adjusting the number of punched holes is further provided on the lower die assembly 200, and the positioning mechanism 250 is fixed on the supporting base 210. The positioning mechanism 250 may be a manually-adjustable positioning mechanism, or may be a hydraulic-driven automatic positioning mechanism, or other feasible positioning mechanisms, and in this embodiment, the manually-adjustable positioning mechanism is simple in structure and low in cost;
the number of the positioning mechanisms 250 is more than one; in this embodiment, as shown in fig. 7, 8 and 9, two manually adjusted positioning mechanisms 250 are provided, and are symmetrically disposed on the left and right sides of the lower die core seat 220 and between the front and rear die core holes 231, when only a single hole needs to be punched, the positioning mechanism 250 is adjusted to limit the insertion depth of the to-be-processed end of the rectangular tube in the material containing cavity 300 only to the position defined by the positioning mechanism 250 between the front and rear die core holes 231, then the punching is performed, and when the double holes need to be punched, the positioning mechanism 250 is adjusted to give way, so that the to-be-processed end of the rectangular tube is inserted into the deepest position of the material containing cavity 300.
According to the stamping equipment, the depth of the rectangular pipe inserted into the material containing cavity 300 can be controlled by adjusting the positioning mechanism 250 at the corresponding position, so that the number of single punching holes is adjusted, and the stamping equipment can be suitable for production of products with different hole number requirements.
Example 3
The basic structure of the stamping apparatus of this embodiment is the same as that of embodiment 2, and is different from and improved in that, as shown in fig. 7, 8 and 9, the positioning mechanism 250 includes a supporting block 251 and a positioning bolt 252, the supporting block 251 is vertically fixed on the supporting base 210, and the positioning bolt 252 is screwed on the supporting block 251 and extends through the supporting block 251 to the side of the lower mold core 230. One or two positioning bolts 252 can be arranged on each supporting block 251, more positioning bolts 252 can be arranged, and when a plurality of positioning bolts 252 are arranged, the positioning bolts 252 are vertically arranged up and down; in this embodiment, as shown in fig. 7, 8, and 9, only one positioning bolt 252 is provided on each support block 251.
According to the stamping equipment, the end of the positioning bolt 252 on the corresponding position positioning mechanism 250 is abutted against or close to the side face of the lower die core 230 by adjusting the screwing depth, so that the number of punched holes can be adjusted, and the stamping equipment is simple in structure, convenient and practical.
Example 4
The basic structure of the stamping apparatus of this embodiment is the same as that of any one of embodiments 1 to 3, and is different from and improved in that, as shown in fig. 7, the supporting base 210 includes a bottom plate 211, two vertical plates 212 and a lower die plate 213, the vertical plates 212 are symmetrically disposed and fixed on the bottom plate 211, the lower die plate 213 is fixed on the upper end of the vertical plate 212, and a waste chamber 280 is formed among the bottom plate 211, the vertical plates 212 and the lower die plate 213 for storing waste generated by punching;
the lower die core holder 220 is fixed on the lower die plate 213, the lower die core holder 220 and the lower die plate 213 are provided with a blanking hole 270 communicated with the waste chamber 280, and after punching is completed and the rectangular tube is taken out, waste generated by punching falls into the waste chamber 280 along the blanking hole 270 under the action of gravity for storage, so that the need of manually cleaning the waste independently each time is avoided.
According to the stamping equipment, waste generated by punching directly falls into the waste chamber 280 through the blanking hole 270 for storage, and only needs to be cleaned regularly, so that the time for cleaning the waste is saved, the labor intensity is reduced, and the production safety is improved.
Example 5
The basic structure of the stamping device of this embodiment is the same as any one of embodiments 1 to 4, and is different from and improved in that, as shown in fig. 5 and 6, a plurality of lifting grooves 111 are provided on the edge of the upper die plate 110, so that the lifting rope or the fixed lifting hook is conveniently bound during lifting, and the stamping device is convenient to assemble and disassemble and high in safety.
The lifting grooves 111 are symmetrically disposed on the left and right sides of the upper die plate 110, and the number of the lifting grooves 111 may be different according to the size and weight of the die, in this embodiment, as shown in fig. 5 and 6, two lifting grooves 111 are disposed on the left and right sides of the upper die plate 110.
Example 6
The basic structure of the stamping apparatus of this embodiment is the same as that of any one of embodiments 1 to 5, and is different from that of the embodiment in that, as shown in fig. 4, 5 and 6, a guide post 260 is disposed on the lower die assembly 200, and the guide post 260 is fixed on the supporting seat 210; as shown in fig. 7, 8 and 9, the upper die assembly 100 is provided with a guide sleeve 160 matched with the guide post 260, and the guide sleeve 160 is fixed at the bottom of the upper die plate 110. The number of the guide posts 260 and the guide sleeves 160 is more than one, in this embodiment, the number of the guide posts 260 and the guide sleeves 160 is two, and the two guide posts are symmetrically arranged left and right, so that the positioning and the guiding are more stable.
According to the stamping equipment of the embodiment, the guide sleeve 160 and the guide post 260 which are matched with each other are arranged between the upper die assembly 100 and the lower die assembly 200, so that the positioning and guiding functions of the die assembly 100 in the die assembly and the die opening movement can be achieved, and the dislocation between the upper die assembly 100 and the lower die assembly 200 is avoided.
Example 7
The basic structure of the stamping apparatus of this embodiment is the same as that of any one of embodiments 1 to 6, and is different from and improved in that, as shown in fig. 4, 5 and 6, the upper die assembly 100 further includes a positioning plate 140, and the positioning plate 140 is movably connected to the bottom of the upper die core seat 120 through a plurality of floating connectors 150; the upper mold core 130 penetrates through the positioning plate 140 and is movably matched with the positioning plate 140, so that the positioning plate 140 can move up and down relative to the upper mold core 130. The floating connection 150 may be a bolt or a bolt and spring fit, or may be other forms.
When the mold is closed, the upper mold assembly 100 and the lower mold assembly 200 are fastened to each other, and the positioning plate 140, the lower mold core seat 220, and the baffle 240 surround the lower mold core 230 to form the outer edge of the material containing cavity 300; during punching, the positioning plate 140 presses the rectangular tube to be fixed, the upper die plate 110, the upper die core seat 120 and the upper die core 130 continue to move downwards, the upper die core 130 penetrates through the positioning plate 140 to punch the rectangular tube, and only the upper die plate 110, the upper die core seat 120 and the upper die core 130 return stroke is performed during die opening.
According to the stamping equipment, the upper die core 130 is limited by the locating plate 140, so that the upper die core is not easy to deviate during punching, and the locating accuracy of the punching position is improved.
Example 8
The basic structure of the stamping apparatus of this embodiment is the same as that of embodiment 7, and is different from and improved in that, as shown in fig. 4, the floating connector 150 includes a bolt 151 and a spring 152, the bolt 151 penetrates through the upper die core base 120 and is in threaded connection with the positioning plate 140, and the bolt 151 is in clearance fit with the upper die core base 120, i.e. the bolt 151 is in clearance fit with a through hole at a corresponding position on the upper die core base 120; the upper mold core base 120 is provided with relief holes 121 corresponding to the bolts 151 one by one, and the relief holes 121 provide a movable space for the bolts 151 to move up and down, so that the bolts 151 can move up and down along the relief holes 121; the spring 152 is sleeved on the bolt 151 and is located between the upper die core base 120 and the positioning plate 140. It will be appreciated that the spring 152 may also be provided separately from the bolt 151.
As shown in fig. 4, 6 and 8, a positioning post 170 is disposed at the bottom of the positioning plate 140, and a positioning hole 232 that mates with the positioning post 170 is disposed on the lower mold core 230. When the mold is closed, after the upper mold assembly 100 and the lower mold assembly 200 are fastened, the positioning column 170 is inserted into the positioning hole 232, and when the mold is punched, the positioning column 170 can only move up and down along the positioning hole 232. The number of the positioning posts 170 and the positioning holes 232 matched with the positioning posts is one or more than two, and it can be appreciated that the greater the number of the positioning posts 170 and the positioning holes 232 is, the better the positioning effect is, the less deviation is easy to occur during die assembly, and thus the punching precision is higher. In this embodiment, as shown in fig. 4, 6 and 8, the number of the positioning posts 170 and the positioning holes 232 is two. In addition, the positioning posts 170 and the positioning holes 232 may be disposed on the positioning plate 140 and the lower mold core 230 in a crossing manner, that is, the positioning plate 140 and the lower mold core 230 are both provided with the positioning posts 170 and the positioning holes 232, the positioning posts 170 on the positioning plate 140 are matched with the positioning holes 232 on the lower mold core 230, and the positioning posts 170 on the lower mold core 230 are matched with the positioning holes 232 on the positioning plate 140; positioning posts 170 may also be provided on the lower mold core 230 while positioning holes 232 are provided on the positioning plate 140.
In the punching apparatus of this embodiment, when punching, the movement of the upper die assembly 100 is less prone to deviation due to the restriction of the cooperation of the positioning post 170 and the positioning hole 232, so that the positioning accuracy of the punching position is further improved.
Example 9
A method of punching a rectangular tube using the punching apparatus of any one of embodiments 1 to 8, comprising the steps of:
step one, setting punching quantity: according to the punching quantity requirement, positioning bolts 252 on the corresponding position positioning mechanisms 250 are adjusted, so that the end parts of the positioning bolts 252 are propped against the side surfaces of the lower mold cores 230;
step two, feeding: inserting the end to be processed of the rectangular pipe into the material containing cavity 300 from the front side of the die until the end can not go deep any more;
step three, die assembly and punching: the upper die assembly 100 is driven to be pressed down, the upper die core 130 penetrates through the upper wall of the rectangular tube and is inserted into the die core hole 231 on the lower die core 230, through holes are formed at corresponding positions on the upper wall of the rectangular tube, and waste materials generated by punching fall to the bottom of the die core hole 231;
step four, die sinking: driving the upper die assembly 100 to return, and pulling the upper die core 130 out of the die core hole 231 to return to the initial position;
fifth, blanking: and pulling out the punched rectangular pipe from the material containing cavity 300, and enabling waste generated by punching to fall into the waste chamber 280 through the blanking hole 270, so that punching is completed.
The processing method for punching rectangular pipes can be suitable for production of rectangular pipes with different hole numbers, positioning accuracy of punching positions is high, waste generated by punching is convenient to clean, labor intensity is low, and safety is high.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (10)
1. A stamping apparatus, characterized in that: the punching machine comprises a punching machine (10) and a rectangular pipe punching die, wherein the rectangular pipe punching die comprises an upper die assembly (100) and a lower die assembly (200), the upper die assembly (100) is fixed at the lower end of a sliding block (11) on the punching machine (10), the lower die assembly (200) is fixed on a lower die mounting seat (12) on the punching machine (10), and the upper die assembly (100) and the lower die assembly (200) are arranged in an up-down matching way;
the upper die assembly (100) comprises an upper die plate (110), an upper die core seat (120) and a plurality of upper die cores (130), wherein the upper die plate (110) is fixedly connected with the lower end of a sliding block (11) on the punching machine (10), the upper die core seat (120) is fixed at the bottom of the upper die plate (110), and the upper die cores (130) are fixed at the lower end of the upper die core seat (120);
the lower die assembly (200) comprises a supporting seat (210), a lower die core seat (220), a lower die core (230) and a plurality of baffles (240), wherein the supporting seat (210) is fixed on a lower die mounting seat (12) on the punching machine (10), the lower die core seat (220) and the baffles (240) are both fixed on the supporting seat (210), the baffles (240) are symmetrically arranged on two sides of the lower die core seat (220), and the lower die core (230) is fixed on the lower die core seat (220); a plurality of mold core holes (231) matched with the upper mold core (130) are formed in the lower mold core (230);
the outer edge of the lower mold core (230) is provided with a material containing cavity (300);
the upper side surface of the lower die core seat (220), the inner side surface of the baffle plate 240 and the lower end surface of the upper die core seat (120) form the outer wall of the material containing cavity (300) after the upper die assembly (100) and the lower die assembly (200) are buckled up and down; the material containing cavity (300) is used for being inserted into the to-be-processed end of the rectangular pipe.
2. A stamping apparatus as claimed in claim 1, wherein: the lower die assembly (200) is further provided with a positioning mechanism (250) for adjusting the punching quantity, and the positioning mechanism (250) is fixed on the supporting seat (210).
3. A stamping apparatus as claimed in claim 2, wherein: the positioning mechanism (250) comprises a supporting block (251) and a positioning bolt (252), the supporting block (251) is vertically fixed on the supporting seat (210), and the positioning bolt (252) is in threaded connection with the supporting block (251) and penetrates through the supporting block (251) to extend to the side face of the lower mold core (230).
4. A stamping apparatus as claimed in claim 1, wherein: the supporting seat (210) comprises a bottom plate (211), a vertical plate (212) and a lower template (213), wherein the vertical plate (212) is symmetrically arranged and fixed on the bottom plate (211), the lower template (213) is fixed at the upper end of the vertical plate (212), and a waste chamber (280) is formed among the bottom plate (211), the vertical plate (212) and the lower template (213);
the lower die core seat (220) is fixed on the lower die plate (213), and blanking holes (270) communicated with the waste chamber (280) are formed in the lower die core seat (220) and the lower die plate (213).
5. A stamping apparatus as claimed in any one of claims 1 to 4, wherein: the edge of the upper template (110) is provided with a plurality of lifting grooves (111).
6. A stamping apparatus as claimed in any one of claims 1 to 4, wherein: the lower die assembly (200) is provided with a guide post (260), and the guide post (260) is fixed on the supporting seat (210); the upper die assembly (100) is provided with a guide sleeve (160) matched with the guide column (260), and the guide sleeve (160) is fixed at the bottom of the upper die plate (110).
7. A stamping apparatus as defined in claim 6, wherein: the upper die assembly (100) further comprises a positioning plate (140), and the positioning plate (140) is movably connected to the bottom of the upper die core seat (120) through a plurality of floating connecting pieces (150); the upper mold core (130) penetrates through the positioning plate (140) and is in movable fit with the positioning plate (140).
8. A stamping apparatus as recited in claim 7, wherein: the floating connecting piece (150) comprises a bolt (151) and a spring (152), the bolt (151) penetrates through the upper die core seat (120) to be in threaded connection with the positioning plate (140), and the bolt (151) is in movable fit with the upper die core seat (120); the upper mold core seat (120) is provided with relief holes (121) which are in one-to-one correspondence with the bolts (151), and the bolts (151) can move up and down along the relief holes (121); the spring (152) is sleeved on the bolt (151) and is positioned between the upper die core seat (120) and the positioning plate (140).
9. A stamping apparatus as recited in claim 8, wherein: the bottom of the positioning plate (140) is provided with a positioning column (170), and the lower mold core (230) is provided with a positioning hole (232) matched with the positioning column (170).
10. A stamping apparatus as recited in claim 9, wherein: the number of the positioning columns (170) and the number of the positioning holes (232) are more than two.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033128.2A CN108927448B (en) | 2018-09-05 | 2018-09-05 | Stamping equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811033128.2A CN108927448B (en) | 2018-09-05 | 2018-09-05 | Stamping equipment |
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| Publication Number | Publication Date |
|---|---|
| CN108927448A CN108927448A (en) | 2018-12-04 |
| CN108927448B true CN108927448B (en) | 2023-10-24 |
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| CN201811033128.2A Active CN108927448B (en) | 2018-09-05 | 2018-09-05 | Stamping equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115382987B (en) * | 2022-09-06 | 2024-06-25 | 常州市蓝托金属制品有限公司 | Shaping tool and process for processing ultra-thin wall multi-cavity three-phase filter shell |
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| KR20120068601A (en) * | 2010-12-17 | 2012-06-27 | (주)도경이앤씨 | A hole punching apparatus for metal pipe |
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| KR20120068601A (en) * | 2010-12-17 | 2012-06-27 | (주)도경이앤씨 | A hole punching apparatus for metal pipe |
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| CN202570955U (en) * | 2012-03-16 | 2012-12-05 | 上海小虎机械科技有限公司 | Square tube punching device |
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| CN108927448A (en) | 2018-12-04 |
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Address after: 243000 No. 2366, north section of Jiangdong Avenue, Cihu high tech Zone, Maanshan City, Anhui Province Patentee after: Anhui Hengxing Equipment Materials Co.,Ltd. Address before: 243000 No. 2366, north section of Jiangdong Avenue, Cihu high tech Zone, Maanshan City, Anhui Province Patentee before: ANHUI HENGXING ZINC-PLATING Co.,Ltd. |
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Denomination of invention: A stamping equipment Granted publication date: 20231024 Pledgee: China Postal Savings Bank Co.,Ltd. Ma'anshan Branch Pledgor: Anhui Hengxing Equipment Materials Co.,Ltd. Registration number: Y2024980005591 |