CN112620754A - Pneumatic numerical control device for forming cross-shaped through hole kidney slot of bolt - Google Patents
Pneumatic numerical control device for forming cross-shaped through hole kidney slot of bolt Download PDFInfo
- Publication number
- CN112620754A CN112620754A CN202011414762.8A CN202011414762A CN112620754A CN 112620754 A CN112620754 A CN 112620754A CN 202011414762 A CN202011414762 A CN 202011414762A CN 112620754 A CN112620754 A CN 112620754A
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- China
- Prior art keywords
- bolt
- sliding block
- die assembly
- lower die
- groove
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- 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
- B23C3/34—Milling grooves of other forms, e.g. circumferential
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
Abstract
The invention relates to a 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 way, first milling cutters are distributed in the channel and opposite to the pneumatic ejector rod, and a first cutter return slot corresponding to the first milling cutter is arranged on the end surface of 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; a placing groove for placing a bolt is formed in the side edge of the upper part of the machine shell, the bottom of the placing groove is communicated with the channel, a through groove for the second milling cutter to move is formed in the upper die assembly, and a second cutter returning groove is formed in the lower die assembly corresponding to the upper die assembly; according to the invention, 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 ensured.
Description
Technical Field
The invention belongs to the technical field of bolt manufacturing, and particularly relates to a pneumatic numerical control device for forming a cross-shaped 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 slotting on the bolt body, especially for the slotting of the cross slot on the bolt body, according to the existing processing technology and processing equipment, the processing efficiency and the qualification rate of products are still relatively low, and the slotting of the bolt body can be completed only by manual auxiliary operation, for example, after one slot is slotted, the other slot needs to rotate the bolt by 90 degrees by manual work; in view of the increasing demand of the market for bolts, how to quickly and efficiently complete the machining and manufacturing of bolts is a problem which needs to be solved at present.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the pneumatic numerical control device for forming the cross through hole kidney slot of the bolt, which has high processing efficiency on the slot of the bolt main body and excellent forming quality of the bolt.
The invention aims to solve the technical scheme that the pneumatic numerical control device for forming the cross-shaped through hole kidney slot of the bolt comprises a closed shell, wherein a channel for the radial sliding of the 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 slot 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 of the upper part of the machine shell is provided with a placing groove for placing a bolt, the bottom of the placing groove is communicated with the channel, a through groove for the second milling cutter to move is formed in the upper die assembly, and the lower die assembly corresponding to the upper die assembly is provided with a second cutter returning groove.
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, go up the mould subassembly and include mould slider, go up reset spring, the tail end of going up the mould slider is door font structure, and with convex surface looks adaptation in the casing upper end, the head end of going up the mould slider with last through-hole that is equipped with on the wall of passageway alternates mutually, just go up reset spring and be located the head end of going up the mould slider with between the casing inner wall.
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; the 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 inserted into the lower through hole 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 second tool returning groove in the center and is matched with the radial surface of the bolt.
Preferably, the through groove is formed in the center of the inner convex surface at the upper end of the casing and in the center of the upper die sliding block.
The invention has the beneficial effects that: through designing the device with the pneumatic and numerical control structure, the slotting on the bolt main body can be fully automatically operated, thereby not only improving the processing efficiency, but also ensuring the quality problem of products.
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; 15. a corner bump; 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; a placing groove 6 for placing the bolts 2 is arranged on the side edge of the upper part of the machine shell 1, and a plurality of bolts 2 are sequentially placed in the placing groove 6 in the height direction; and the bottom of the placing groove 6 is communicated with the channel 11, so that the bolt 2 is conveniently introduced into the channel 11; a through groove 41 for the second milling cutter 7 to move is arranged in the upper die component 4, a second cutter returning groove 51 is arranged on the lower die component 5 corresponding to the through groove 41, and the through groove 41 is arranged at the center of the inner convex surface 12 at the upper end of the machine shell 1 and the center of the upper die sliding block 42; this facilitates the second milling cutter 7 milling the other through-hole kidney slot 21 in the bolt body and is distributed in a cross shape with the through-hole kidney slot 21 milled by the first milling cutter 9.
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 an upper 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 head end of the upper die sliding block 42 is inserted into an upper through hole 11-1 formed in the wall of the channel 11, so that the bolt 2 can be clamped conveniently, and the upper return spring 43 is located 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 can be released conveniently, namely, the upper die sliding block 42 is reset by utilizing the elasticity of the upper 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, the lower end of the lower die sliding block 52 is inserted into the corner bump 15 in the machine shell 1, the head end of the lower die sliding block 52 is inserted into the lower through hole 11-2 formed in the wall of the channel 11, so that the up-and-down movement stability of the lower die sliding block 52 is better, and the lower return spring 53 is positioned between the upper end of the lower die sliding block 52 and the machine shell 1, so that the lower die sliding block 52 is better returned.
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 a placing groove 6, the bolt 2 positioned at the bottommost part falls into a channel 11 in a gravity mode, then a pneumatic ejector rod 3 pushes the bolt 2 to a position between an upper die sliding block 42 and a lower die sliding block 52 along the channel 11, meanwhile, the upper die sliding block and the lower die sliding block simultaneously admit air through an upper air inlet and a lower air inlet, so that the upper die sliding block and the lower die sliding block clamp the bolt 2, the pneumatic ejector rod 3 simultaneously props against the bolt 2, at the moment, a second milling cutter 7 moves towards the bolt direction along a through groove 41, namely, a through hole waist groove of a bolt main body is formed in a machining mode, and then a through hole waist groove 21 is milled on the bolt main body by a first milling cutter 9 along the channel 11 and is distributed in a cross shape with; 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 upper 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 (8)
1. The utility model provides a be used for fashioned pneumatic numerical control device of bolt cross through-hole kidney groove, 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); the side edge of the upper part of the machine shell (1) is provided with a placing groove (6) for placing a bolt (2), the bottom of the placing groove (6) is communicated with the channel (11), a through groove (41) for the second milling cutter (7) to move is formed in the upper die assembly (4), and a second cutter returning groove (51) is formed in the lower die assembly (5) corresponding to the through groove.
2. The pneumatic numerical control device for the forming of the bolt cross through hole kidney slot 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. The pneumatic numerical control device for the forming of the bolt cross through hole kidney slot 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, go up the head end of mould slider (42) with last through-hole (11-1) that are equipped with on the wall of passageway (11) alternate mutually, just go up reset spring (43) and be located the head end of last mould slider (42) with between casing (1) inner wall.
4. The pneumatic numerical control device for the forming of the bolt cross through hole kidney slot 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); 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).
5. The pneumatic numerical control device for the forming of 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. The pneumatic numerical control device for the forming of the bolt cross through hole kidney slot 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) is inserted into the corner bump (15) in the machine shell (1), the head end of the lower die sliding block (52) is inserted into the lower through hole (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 pneumatic numerical control device for the forming of 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 second tool returning groove (51) in the center and is matched with the radial surface of the bolt (2).
8. The pneumatic numerical control device for the forming of the bolt cross through hole kidney slot as claimed in claim 3, characterized in that: the through groove (41) is formed in the center of the inner convex surface (12) at the upper end of the machine shell (1) and the center of the upper die sliding block (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011414762.8A CN112620754A (en) | 2020-12-07 | 2020-12-07 | Pneumatic numerical control device for forming cross-shaped through hole kidney slot of bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011414762.8A CN112620754A (en) | 2020-12-07 | 2020-12-07 | Pneumatic numerical control device for forming cross-shaped through hole kidney slot of bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112620754A true CN112620754A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011414762.8A Pending CN112620754A (en) | 2020-12-07 | 2020-12-07 | Pneumatic numerical control device for forming cross-shaped through hole kidney slot of bolt |
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| Country | Link |
|---|---|
| CN (1) | CN112620754A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117359029A (en) * | 2023-10-18 | 2024-01-09 | 浙江衡泰机械有限公司 | Four-way cross joint tapping device |
-
2020
- 2020-12-07 CN CN202011414762.8A patent/CN112620754A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117359029A (en) * | 2023-10-18 | 2024-01-09 | 浙江衡泰机械有限公司 | Four-way cross joint tapping device |
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