CN112620752A - Multi-linkage pneumatic numerical control device for forming cross-shaped through hole kidney groove of bolt - Google Patents
Multi-linkage pneumatic numerical control device for forming cross-shaped through hole kidney groove of bolt Download PDFInfo
- Publication number
- CN112620752A CN112620752A CN202011414778.9A CN202011414778A CN112620752A CN 112620752 A CN112620752 A CN 112620752A CN 202011414778 A CN202011414778 A CN 202011414778A CN 112620752 A CN112620752 A CN 112620752A
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- bolt
- die assembly
- sliding block
- lower die
- numerical control
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- 210000003734 kidney Anatomy 0.000 title claims abstract description 14
- 238000003801 milling Methods 0.000 claims abstract description 27
- 230000006978 adaptation Effects 0.000 claims 2
- 238000013461 design Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C1/00—Milling machines not designed for particular work or special operations
- B23C1/08—Milling machines not designed for particular work or special operations with a plurality of vertical working-spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
Abstract
The invention relates to a multi-connected pneumatic numerical control device for forming a cross-shaped through hole kidney slot of a bolt, which comprises a closed shell, wherein the center of the shell is provided with a channel for the bolt to slide in the radial direction, a pneumatic ejector rod is connected in the channel in a sliding manner, a first milling cutter is distributed in the channel and opposite to the pneumatic ejector rod, and the end surface of the first milling cutter is provided with a first cutter returning groove corresponding to the first milling cutter; an upper die assembly is arranged at the upper part of the casing, a lower die assembly is arranged at the lower part of the casing, and the upper die assembly and the lower die assembly are driven by an external air source to clamp the bolt; the side edge of the upper part of the machine shell is provided with three placing grooves for placing bolts, the placing grooves are sequentially distributed, the bottoms of the placing grooves are communicated with the channel, three through grooves which are sequentially distributed and used for the second milling cutter to move are formed in the upper die assembly, and three second tool return grooves are formed in the lower die assembly corresponding to the upper die assembly; the invention designs a device with a pneumatic and numerical control structure, so that the slotting on the bolt main body can be fully automatically operated.
Description
Technical Field
The invention belongs to the technical field of bolt manufacturing, and particularly relates to a multi-connected pneumatic numerical control device for forming a cross through hole kidney slot of a bolt.
Background
With the rapid development of national economy in China, the production technology and requirements for standard parts are higher and higher, and the requirements for the standard parts are also higher and higher, wherein bolts are one of the standard parts with high utilization rate. However, for the grooving on the bolt main body, according to the existing processing technology and processing equipment, the processing efficiency and the qualification rate of products are still relatively low, and in view of the increasing demand of the market for bolts, how to rapidly and efficiently finish the processing and manufacturing of the bolts is a problem to be solved at present.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a multi-connected pneumatic numerical control device for forming a cross through hole kidney groove of a bolt, which has high processing efficiency on the grooving of a bolt main body and excellent forming quality of the bolt.
The invention aims to solve the technical scheme that the multi-connected pneumatic numerical control device for forming the bolt cross through hole kidney slot comprises a closed shell, wherein a channel for radial sliding of a bolt is formed in the center of the shell, a pneumatic ejector rod is connected in the channel in a sliding manner, a first milling cutter is distributed in the channel opposite to the pneumatic ejector rod, and a first cutter returning groove corresponding to the first milling cutter is formed in the end surface of the first milling cutter; an upper die assembly is arranged at the upper part of the shell, a lower die assembly is arranged at the lower part of the shell, and the upper die assembly and the lower die assembly are driven by an external air source to clamp the bolt; the side edge of the upper part of the shell is provided with three placing grooves for placing bolts, the placing grooves are sequentially distributed, the bottoms of the placing grooves are communicated with the channel, three through grooves which are sequentially distributed and used for the second milling cutter to move are formed in the upper die assembly, and three second tool return grooves are formed in the lower die assembly corresponding to the upper die assembly; and the distance between adjacent through grooves is equal to the diameter of the bolt.
Preferably, one side of the upper die assembly and one side of the lower die assembly are provided with positioning modules which are symmetrically distributed up and down, and the positioning modules are positioned in front of the machine shell and are matched with the tightening ends of the bolts.
Preferably, the upper die assembly comprises an upper die sliding block and an upper reset spring, the tail end of the upper die sliding block is of a door-shaped structure and is matched with the inner convex surface of the upper end of the shell, the upper die sliding block is provided with three head ends and is sequentially inserted into the three upper through holes formed in the wall of the channel, and the upper reset spring is located between the head ends of the upper die sliding block and the inner wall of the shell.
Preferably, the upper end of the shell is provided with an upper air inlet corresponding to the tail end of the upper die sliding block; and each head end of the upper die sliding block is an inner arc concave surface and is matched with the radial surface of the bolt.
Preferably, the number of the upper air inlets is two, and the two upper air inlets correspond to two sides of the tail end of the upper die sliding block one by one.
Preferably, the lower die assembly comprises a lower die sliding block and a lower return spring, the lower die sliding block is in a cross shape, the lower end of the lower die sliding block is inserted into the corner convex block in the casing, the head end of the lower die sliding block is in a chevron shape and is sequentially inserted into the three lower through holes formed in the wall of the channel, and the lower return spring is located between the upper end of the lower die sliding block and the casing.
Preferably, the lower end of the shell is provided with a lower air inlet which corresponds to the tail end of the lower die sliding block and is positioned between the two corner bumps; the head end of the lower die sliding block is an inner arc concave surface with a tool returning groove in the center and is matched with the radial surface of the bolt.
The invention has the beneficial effects that: by designing the device with the pneumatic and numerical control structure, the slotting on the bolt main body can be fully automatically operated, so that the processing efficiency is improved, and the quality problem of products is guaranteed; but also three placing grooves and three upper and lower die sliding blocks which correspond to the placing grooves and can clamp the bolts simultaneously are arranged, so that the machining efficiency is more efficient.
Drawings
Fig. 1 is a schematic front sectional view of the present invention.
Fig. 2 is a schematic view of the sectional structure a-a of fig. 1.
The reference numbers in the drawings are respectively: 1. a housing; 2. a bolt; 3. a pneumatic ejector rod; 4. an upper die assembly; 5. a lower die assembly; 6. a placement groove; 7. a second milling cutter; 8. a positioning module; 9. a first milling cutter; 11. a channel; 12. an inner convex surface; 13. an upper inlet port; 14. a lower air inlet; 21. a through hole waist slot; 41. a through groove; 42. an upper die slide block; 43. an upper return spring; 51. a second tool return groove; 52. a lower die slide block; 53. a lower return spring; 91. a first knife returning groove; 11-1, an upper through hole; 11-2 and a lower through hole.
Detailed Description
The invention will be described in detail below with reference to the following drawings: as shown in the attached drawings 1 and 2, the bolt comprises a closed casing 1, a channel 11 for a bolt 2 to slide in the radial direction is formed in the center of the casing 1, a pneumatic ejector rod 3 is connected in the channel 11 in a sliding manner, the pneumatic ejector rod 3 can push the bolt 2 along the channel 11, first milling cutters 9 are distributed in a manner of being opposite to the pneumatic ejector rod 3, and a first cutter returning groove 91 corresponding to the first milling cutter 9 is formed in the end face of the first milling cutter 9, so that the first milling cutter 9 can mill a through hole waist groove 21 on a bolt main body along the channel 11; an upper die assembly 4 is arranged at the upper part of the machine shell 1, a lower die assembly 5 is arranged at the lower part of the machine shell 1, and the upper die assembly 4 and the lower die assembly 5 are driven by an external air source to clamp the bolt 2, namely, if air is introduced, the two die sets move relatively to clamp the bolt 2, and if air is discharged, the two die sets are far away from each other to release the bolt 2; three placing grooves 6 for placing the bolts 2 are arranged on the side edge of the upper part of the machine shell 1 in sequence, and a plurality of bolts 2 are placed in the placing grooves 6 in sequence in the height direction; the bottoms of the placing grooves 6 are communicated with the channel 11, so that the bolts 2 in the three placing grooves 6 can be simultaneously introduced into the channel 11; the upper die assembly 4 is internally provided with three through grooves 41 which are sequentially distributed and used for the second milling cutter 7 to move, the lower die assembly 5 corresponding to the through grooves is provided with three second tool return grooves 51, and the through grooves 41 are formed on the inner convex surface 12 at the upper end of the machine shell 1 and the upper die sliding block 42, so that the second milling cutter 7 can mill the through hole waist grooves 21 on each bolt main body at the same time; and the distance between the adjacent through grooves 41 is equal to the diameter of the bolt 2, that is, the center distance between two adjacent bolts is equal to the distance between the adjacent through grooves 41, so that the effect is as follows: when three bolts are simultaneously machined, the adjacent bolts can be in a close-fitting state, the machining stability is better, the machining efficiency is greatly improved, and the close-fitting between the bolts and the jacking force of the pneumatic ejector rod 3 enable the first milling cutter 9 not to shake along the channel 11 in the process of milling the through hole waist sub-groove 21.
In order to better position the bolt 2 in the sliding process, the positioning modules 8 which are symmetrically distributed up and down are installed on one side of the upper die assembly 4 and one side of the lower die assembly 5, and the positioning modules 8 are positioned in front of the machine shell 1 and are matched with the screwing end of the bolt 2, so that the structural design can position the bolt in the radial direction and the axial direction, and the phenomenon of deviation in the sliding process is avoided.
The upper die assembly 4 comprises an upper die sliding block 42 and a return spring 43, the tail end of the upper die sliding block 42 is of a door-shaped structure and is matched with the inner convex surface 12 at the upper end of the machine shell 1, so that the upper die assembly is convenient to limit and slide; the upper die sliding block 42 is provided with three head ends which are inserted into three upper through holes 11-1 formed in the wall of the channel 11, and the center distance between the head ends of the adjacent upper die sliding blocks 42 is equal to the center distance between the adjacent bolts, so that the accuracy of machining the waist grooves of the through holes of the bolts is better; and the return spring 43 is positioned between the head end of the upper die sliding block 42 and the inner wall of the machine shell 1, so that the bolt 2 is convenient to be opened, namely the upper die sliding block 42 is reset by utilizing the elasticity of the return spring 43.
An upper air inlet 13 is formed in the upper end of the machine shell 1 and corresponds to the tail end of the upper die sliding block 42, and an external air source moves the upper die sliding block 42 towards the direction of the bolt 2 through the upper air inlet 13 so as to clamp the bolt 2; for better clamping the bolt 2, the head end of the upper die sliding block 42 is an inner arc concave surface and is matched with the radial surface of the bolt 2.
In order to ensure that the upper die sliding block 42 has better movement stability and balance when moving towards the bolt 2, two upper air inlets 13 are arranged and correspond to two sides of the tail end of the upper die sliding block 42 one by one.
The lower die assembly 5 comprises a lower die sliding block 52 and a lower return spring 53, the lower die sliding block 52 is in a cross shape, and the lower end of the lower die sliding block 52 is inserted on the corner lug 15 in the machine shell 1, so that the up-and-down motion stability of the lower die sliding block 52 is better; the head end of the lower die sliding block 52 is in a Chinese character 'shan' shape and sequentially penetrates through three lower through holes 11-2 formed in the wall of the channel 11, and the center distance between the head ends of the adjacent lower die sliding blocks 52 is equal to the center distance between the adjacent bolts, so that the accuracy of machining the waist grooves of the through holes of the bolts is better; the lower return spring 53 is located between the upper end of the lower mold slide 52 and the cabinet 1, so that the return of the lower mold slide 52 is better.
A lower air inlet 14 is arranged at the lower end of the casing 1, and an external air source moves the lower die sliding block 52 towards the bolt 2 through the lower air inlet 14 so as to clamp the bolt 2; and corresponds to the tail end of the lower die slide block 52, and the lower air inlet 14 is positioned in the middle of the two corner lugs 15; in order to better clamp the bolt 2, the head end of the lower die sliding block 52 is an inner arc concave surface with a second tool returning groove 51 at the center and is matched with the radial surface of the bolt 2, wherein the second tool returning groove 51 on the inner arc concave surface is arranged so that the second milling cutter 7 can play a tool returning effect when milling a through hole kidney groove of the bolt body.
The working principle of the invention is as follows: firstly, bolts 2 are sequentially placed in three placing grooves 6, the three bolts 2 at the bottommost part fall into a channel 11 simultaneously in a gravity mode, then a pneumatic ejector rod 3 pushes the three bolts 2 to be between an upper die slide block 42 and a lower die slide block 52 along the channel 11 simultaneously, the three bolts are in one-to-one correspondence to three head ends of the three bolts, and meanwhile the upper die slide block and the lower die slide block simultaneously admit air through an upper air inlet and a lower air inlet, so that the bolts 2 are clamped by the upper die slide block and the lower die slide block, and the pneumatic ejector rod 3 simultaneously props; at the moment, the three second milling cutters 7 move towards the bolt direction along the respective three through grooves 41 simultaneously, namely, through hole waist sub-grooves of the bolt body are formed by machining, and then the first milling cutter 9 mills a through hole waist sub-groove 21 on the bolt body along the channel 11 and is distributed in a cross shape with the through hole waist sub-grooves 21 milled by the second milling cutters 7; finally, air is discharged through the upper air inlet and the lower air inlet, the lower die sliding block is reset through the lower reset spring 53 at the moment, the upper die sliding block is reset through the reset spring 43, the bolt 2 is in a free state, and the bolt is ejected out of the channel 11 through the pneumatic ejector rod 3.
The present invention is not limited to the above embodiments, and any changes in the shape or material composition, or any changes in the structural design provided by the present invention, are all modifications of the present invention, and should be considered to be within the scope of the present invention.
Claims (7)
1. The utility model provides a be used for fashioned pneumatic numerical control device that allies oneself with in bolt cross through-hole kidney slot, includes a inclosed casing (1), its characterized in that: a channel (11) for the bolt (2) to slide radially is formed in the center of the machine shell (1), a pneumatic ejector rod (3) is connected in the channel (11) in a sliding mode, first milling cutters (9) are distributed in the channel and opposite to the pneumatic ejector rod (3), and a first cutter returning groove (91) corresponding to the first milling cutter (9) is formed in the end face of the first milling cutter (9); an upper die assembly (4) is arranged at the upper part of the casing (1), a lower die assembly (5) is arranged at the lower part of the casing (1), and the upper die assembly (4) and the lower die assembly (5) are driven by an external air source to clamp the bolt (2); three placing grooves (6) for placing bolts (2) are formed in the side edge of the upper portion of the machine shell (1) and are sequentially distributed in an arrayed mode, the bottoms of the placing grooves (6) are communicated with the channel (11), three through grooves (41) which are sequentially distributed in an arrayed mode and are used for moving a second milling cutter (7) are formed in the upper die assembly (4), and three second cutter returning grooves (51) are formed in the lower die assembly (5) corresponding to the upper die assembly; and the distance between the adjacent through grooves (41) is equal to the diameter of the bolt (2).
2. A multi-connected pneumatic numerical control device for bolt cross through hole kidney slot forming as claimed in claim 1, characterized in that: go up the mould subassembly (4), one side of lower mould subassembly (5) is installed and is locating module (8) that upper and lower symmetric distribution, just locating module (8) are located the place ahead of casing (1) and with the end adaptation of screwing up of bolt (2).
3. A multi-connected pneumatic numerical control device for bolt cross through hole kidney slot forming as claimed in claim 1, characterized in that: go up mould subassembly (4) including last mould slider (42), go up reset spring (43), the tail end of going up mould slider (42) is door font structure, and with convex surface (12) looks adaptation in casing (1) upper end, it is equipped with three head end to go up mould slider (42), and with through-hole (11-1) alternate in proper order mutually on the three that are equipped with on the wall of passageway (11), just it is located to go up reset spring (43) the head end of mould slider (42) with between casing (1) inner wall.
4. A multi-connected pneumatic numerical control device for bolt cross through hole kidney slot forming as claimed in claim 3, characterized in that: an upper air inlet (13) is formed in the upper end of the shell (1) and corresponds to the tail end of the upper die sliding block (42); and each head end of the upper die sliding block (42) is an inner arc concave surface and is matched with the radial surface of the bolt (2).
5. The multi-connected pneumatic numerical control device for forming the bolt cross through hole kidney slot as claimed in claim 4, characterized in that: the number of the upper air inlets (13) is two, and the two upper air inlets correspond to the two sides of the tail end of the upper die sliding block (42) one by one.
6. A multi-connected pneumatic numerical control device for bolt cross through hole kidney slot forming as claimed in claim 1, characterized in that: the lower die assembly (5) comprises a lower die sliding block (52) and a lower return spring (53), the lower die sliding block (52) is in a cross shape, the lower end of the lower die sliding block (52) penetrates through an angle lug (15) in the machine shell (1), the head end of the lower die sliding block (52) is in a Chinese character 'shan' shape and sequentially penetrates through three lower through holes (11-2) formed in the wall of the channel (11), and the lower return spring (53) is located between the upper end of the lower die sliding block (52) and the machine shell (1).
7. The multi-connected pneumatic numerical control device for forming the bolt cross through hole kidney slot as claimed in claim 6, characterized in that: the lower end of the shell (1) is provided with a lower air inlet (14) which corresponds to the tail end of the lower die sliding block (52), and the lower air inlet (14) is positioned between the two corner convex blocks (15); the head end of the lower die sliding block (52) is an inner arc concave surface with a tool returning groove (51) at the center and is matched with the radial surface of the bolt (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011414778.9A CN112620752A (en) | 2020-12-07 | 2020-12-07 | Multi-linkage pneumatic numerical control device for forming cross-shaped through hole kidney groove of bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011414778.9A CN112620752A (en) | 2020-12-07 | 2020-12-07 | Multi-linkage pneumatic numerical control device for forming cross-shaped through hole kidney groove of bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112620752A true CN112620752A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011414778.9A Pending CN112620752A (en) | 2020-12-07 | 2020-12-07 | Multi-linkage pneumatic numerical control device for forming cross-shaped through hole kidney groove of bolt |
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| Country | Link |
|---|---|
| CN (1) | CN112620752A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0059979A2 (en) * | 1981-03-11 | 1982-09-15 | Gebr. Heller Maschinenfabrik GmbH | Machine for milling grooves in bore-walls of workpieces |
| CN201776500U (en) * | 2010-04-13 | 2011-03-30 | 吴长敏 | Pneumatic cross shaft milling oil tank machine tool |
| CN205764090U (en) * | 2016-05-26 | 2016-12-07 | 安徽泰富重工制造有限公司 | A kind of two-ends milling machine slot device of conveyer carrying roller axle |
| CN109513974A (en) * | 2018-12-24 | 2019-03-26 | 宁波优升车业有限公司 | A kind of slotting attachment of the adjusting nut of brake cable outer tube fixing seat |
| CN111069675A (en) * | 2019-12-31 | 2020-04-28 | 宁波鑫精华轴业有限公司 | Automatic processing equipment of motor shaft |
| CN111958026A (en) * | 2020-08-25 | 2020-11-20 | 中国航发哈尔滨轴承有限公司 | Positioning tool and positioning method for machining lubricating oil groove in inner diameter of bearing |
-
2020
- 2020-12-07 CN CN202011414778.9A patent/CN112620752A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0059979A2 (en) * | 1981-03-11 | 1982-09-15 | Gebr. Heller Maschinenfabrik GmbH | Machine for milling grooves in bore-walls of workpieces |
| CN201776500U (en) * | 2010-04-13 | 2011-03-30 | 吴长敏 | Pneumatic cross shaft milling oil tank machine tool |
| CN205764090U (en) * | 2016-05-26 | 2016-12-07 | 安徽泰富重工制造有限公司 | A kind of two-ends milling machine slot device of conveyer carrying roller axle |
| CN109513974A (en) * | 2018-12-24 | 2019-03-26 | 宁波优升车业有限公司 | A kind of slotting attachment of the adjusting nut of brake cable outer tube fixing seat |
| CN111069675A (en) * | 2019-12-31 | 2020-04-28 | 宁波鑫精华轴业有限公司 | Automatic processing equipment of motor shaft |
| CN111958026A (en) * | 2020-08-25 | 2020-11-20 | 中国航发哈尔滨轴承有限公司 | Positioning tool and positioning method for machining lubricating oil groove in inner diameter of bearing |
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