阅读说明：本技术 一种用于螺栓通孔腰子槽成型的多联气动数控装置 (Multi-linkage pneumatic numerical control device for forming bolt through hole kidney groove ) 是由 陆昱森 于 2020-12-07 设计创作，主要内容包括：本发明涉及一种用于螺栓通孔腰子槽成型的多联气动数控装置,包括一个密闭的机壳,机壳的中心开设有一个供螺栓径向滑动的通道,通道内滑动连接有气动顶杆,机壳上部设有上模组件,机壳下部设有下模组件,且上模组件、下模组件通过外界气源驱动将螺栓夹紧；机壳的上部侧边设有三个用于放置螺栓的放置槽并呈依次排列分布,且放置槽的底部与通道相连通,上模组件内开设有三条依次排列分布并供铣刀活动的通槽,与之对应的下模组件设有三条回刀槽；且相邻的通槽之间的间距与螺栓的直径相等；本发明的有益效果为：通过设计气动及数控结构的装置,使得螺栓主体上开槽能够全自动化操作,不仅提高了加工效率,同时保证了产品的质量问题。(The invention relates to a multi-connected pneumatic numerical control device for forming a bolt through hole kidney slot, which comprises a closed shell, wherein the center of the shell is provided with a channel for a bolt to slide in the radial direction, a pneumatic ejector rod is connected in the channel in a sliding manner, the upper part of the shell is provided with an upper die assembly, the lower part of the shell is provided with a lower die assembly, 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 moving the milling cutter are arranged in the upper die assembly, and the lower die assembly corresponding to the upper die assembly is provided with three tool returning grooves; the distance between the adjacent through grooves is equal to the diameter of the bolt; 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.)

1. The utility model provides a be used for fashioned pneumatic numerical control device that allies oneself with of bolt 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 casing (1), a pneumatic ejector rod (3) is connected in the channel (11) in a sliding mode, an upper die assembly (4) is arranged on the upper portion of the casing (1), a lower die assembly (5) is arranged on the lower portion of the casing (1), and the bolt (2) is clamped by the upper die assembly (4) and the lower die assembly (5) under the driving of an external air source; 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 milling cutter (7) are formed in the upper die assembly (4), and three tool 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 forming a bolt 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. A multi-connected pneumatic numerical control device for forming a bolt through hole kidney slot as claimed in claim 1, characterized in that: go up mould subassembly (4) including last mould slider (42), 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 reset spring (43) are located the head end of last mould slider (42) with between casing (1) inner wall.

4. The multi-connected pneumatic numerical control device for bolt through hole waist 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 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 forming a bolt through hole kidney slot as claimed in claim 1, characterized in that: the lower die component (5) comprises a lower die sliding block (52) and a positioning block (53), the lower die sliding block (52) is in a Chinese character 'shan' shape and is inserted into the positioning block (53), the head end of the lower die sliding block (52) is sequentially inserted into three lower through holes (11-2) formed in the wall of the channel (11), and the positioning block (53) is located in the machine shell (1).

7. The multi-connected pneumatic numerical control device for forming the bolt 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) and corresponds to the tail end of the lower die sliding block (52); 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).

Technical Field

The invention belongs to the technical field of bolt manufacturing, and particularly relates to a pneumatic numerical control device for forming a bolt through hole kidney slot.

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 slotting on the bolt main body, according to the existing machining process and machining equipment, the machining efficiency and the qualification rate of products are still relatively low, although automatic equipment for slotting the bolt main body is developed at present, only a single bolt main body can be slotted, the machining efficiency cannot be met, and in view of the increasing demand of the market for bolts, how to quickly and efficiently complete the machining and manufacturing of the bolts is a problem which needs to be solved urgently at present.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides a multi-connection pneumatic numerical control device for forming a waist groove of a through hole 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 through hole kidney slot comprises a closed shell, wherein a channel for a bolt to slide in the radial direction is formed in the center of the shell, a pneumatic ejector rod is connected in the channel in a sliding manner, 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 moving the milling cutter are formed in the upper die assembly, and the lower die assembly corresponding to the upper die assembly is provided with three tool return grooves; 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 a return 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 sequentially penetrates through three upper through holes formed in the wall of the channel, and the return 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 positioning block, the lower die sliding block is in a shape of a Chinese character 'shan' and is inserted into the positioning block, the head end of the lower die sliding block and three lower through holes formed in the wall of the channel are sequentially inserted, and the positioning block is located in 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; 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. milling cutters; 8. a positioning module; 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. a return spring; 51. a tool returning groove; 52. a lower die slide block; 53. positioning blocks; 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 invention comprises a closed casing 1, a channel 11 for a bolt 2 to slide radially is arranged at the center of the casing 1, a pneumatic ejector rod 3 is connected in the channel 11 in a sliding way, the pneumatic ejector rod 3 can push the bolt 2 along the channel 11, 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, the upper die assembly 4 and the lower die assembly 5 drive the bolt 2 to clamp through an external air source, namely, if air is supplied, the two modules move relatively to clamp the bolt 2, and if air is discharged, the two modules move 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 moving the milling cutter 7, the lower die assembly 5 corresponding to the through grooves is provided with three 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 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, and the machining efficiency is greatly improved.

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 component 5 comprises a lower die sliding block 52 and a positioning block 53, wherein the lower die sliding block 52 is in a Chinese character 'shan' shape and is inserted into the positioning block 53, so that the up-and-down motion stability of the lower die sliding block 52 is better, the lower die sliding block 52 is provided with three head ends which are inserted into 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 positioning block 53 is located in the housing 1.

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; 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 tool returning groove 51 at the center and is matched with the radial surface of the bolt 2, wherein the tool returning groove 51 on the inner arc concave surface is arranged so that the 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 through a gravity mode simultaneously, then a pneumatic ejector rod 3 pushes the three bolts 2 to a position between an upper mold sliding block 42 and a lower mold sliding block 52 along the channel 11 simultaneously, the three bolts are in one-to-one correspondence with three head ends of the three bolts respectively, the upper mold sliding block and the lower mold sliding block simultaneously admit air through an upper air inlet and a lower air inlet, so that the upper mold sliding block and the lower mold sliding block clamp the bolts 2, at the moment, three milling cutters 7 simultaneously move towards the bolt direction along three through grooves 41, namely, through hole waist grooves of a bolt main body are formed through machining, finally, air is discharged through the upper air inlet and the lower air inlet, at the moment, the lower mold sliding block automatically slides downwards through gravity, the upper mold sliding block resets through.

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.