Die for machining sliding bolt

Abstract

The utility model discloses a die for machining a sliding bolt, and relates to the technical field of sliding bolt machining, the die comprises a main shaft inner hole die, and the sliding bolt is inserted into the main shaft inner hole die; the main shaft inner hole mold comprises a main mold body, the left end of the main mold body is sleeved with an outer circular ring fixed to the main mold body, an inner groove is formed in the main mold body, a flange plate is fixed to the left end of the outer circular ring, and a plurality of through holes are formed in the top of the flange plate in a circular array penetrating mode. Multiple times of clamping are needed in a traditional machining process, however, the die is matched with the step face of the sliding bolt through the supporting hole, rapid positioning and stable supporting of the sliding bolt are achieved, and the clamping frequency is reduced; due to the reduction of the clamping times, the manual operation intensity is reduced, the manufacturing period is remarkably shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sliding bolt processing technical field especially sliding bolt processing mould. BACKGROUND

[0002] Sliding bolt is one of the parts of the forklift gearbox. At present, it is processed by horizontal numerical control lathe, and the processing is completed by four steps: first, centering hole is formed by turning the end surface of the bolt; second, the centering hole is clamped by a centering pin, the large diameter of the thread is roughly turned, and the head ring surface is formed; third, the bolt is installed to make the ring surface contacted with the chuck surface of the machine tool to limit the axial direction, and the total length of the bolt and other sizes of the bolt head are turned; finally, the bolt head is clamped, the centering hole is clamped by a centering pin, and the trapezoidal thread is processed.

[0003] However, each step of the production process needs to be clamped, so that the production process has the characteristics of many clamping times, long manufacturing cycle and low economic benefit. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art. Therefore, one purpose of the utility model is to provide a sliding bolt processing mould, which realizes quick positioning and stable support of the sliding bolt and reduces the clamping times.

[0005] The sliding bolt processing mould provided by the utility model comprises a main shaft inner hole mould, and a sliding bolt is inserted into the main shaft inner hole mould.

[0006] The main shaft inner hole mould comprises a main mould, an outer ring fixed to the left end of the main mould, an inner groove formed in the main mould, a flange plate fixed to the left end of the outer ring, a plurality of through holes formed in the top of the flange plate in a circular array, and a support hole formed in the right side center of the main mould.

[0007] Preferably, the sliding bolt comprises a blank outer circle, a ring plate turned at the right end of the blank outer circle, a large end head turned at the right end of the ring plate, a stepped surface turned at the left end of the blank outer circle, a small end turned at the left end of the stepped surface, an end face turned at the left side of the small end, and a centering hole formed in the center of the end face.

[0008] Preferably, a chuck is inserted into the outer surface of the sliding bolt, and the chuck is in contact with the ring plate.

[0009] Preferably, a cutter for turning the sliding bolt is arranged on one side of the sliding bolt.

[0010] Preferably, the outer ring is arranged concentrically with the inner groove.

[0011] The beneficial effects of the utility model are

[0012] 1、 traditional processing technology needs multiple clamping, and the present mould realizes quick positioning and stable support of the sliding bolt through the cooperation of the supporting hole and the stepped surface of the sliding bolt, and reduces the clamping times; the reduction of the clamping times not only reduces the manual operation strength, but also significantly shortens the manufacturing cycle and improves the production efficiency.

[0013] 2、 the supporting hole of the mould and the stepped surface of the sliding bolt are closely matched, so that the coaxiality and axial limiting precision of the sliding bolt in the processing process are ensured; through reducing the clamping error and vibration influence, the processing precision of the sliding bolt is significantly improved, the high-precision processing demand is met; meanwhile, the mould structure is simple, the manufacturing cost is low, and the installation is convenient and easy to operate. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The utility model provides a mould use state structural schematic drawing of mould for sliding bolt processing.

[0015] Fig. 2 The utility model provides a main shaft inner hole mould structure schematic drawing of mould for sliding bolt processing.

[0016] Fig. 3 The utility model provides a sliding bolt drawing structure schematic drawing of mould for sliding bolt processing.

[0017] In the drawing: 1, main shaft inner hole mould;2, sliding bolt;3, chuck;4, tool;10, main mould;11, outer circle ring;12, inner groove;13, flange plate;14, through hole;15, supporting hole;21, big end head part;22, small end;23, stepped surface;24, end face;25, blank outer circle;26, circular ring plate;28, center hole. CONCRETE IMPLEMENTATION

[0018] Referring to Figs. 1-3 , the mould for sliding bolt 2 processing includes the main shaft inner hole mould 1, the main shaft inner hole mould 1 of different lengths can be designed according to the processing demand, and the supporting hole 15 aperture can also be adjusted to adapt to the stepped surface 23 of the sliding bolt 2 of different specifications, and the sliding bolt 2 is inserted into the inside of the main shaft inner hole mould 1;

[0019] The main shaft hole mold 1 comprises a main mold 10, the left end of the main mold 10 is sleeved with an outer ring 11 fixed therewith, the inside of the main mold 10 is provided with an inner groove 12, the left end of the outer ring 11 is fixed with a flange plate 13, the top of the flange plate 13 is provided with a plurality of through holes 14 in a circular array, the connection of the outer ring 11 and the main shaft of the machine tool is realized through the through holes 14 on the flange plate 13, the number of the through holes 14 is four, the through holes 14 are fixed by screws, the stability of the mold installation is ensured, the right side of the main mold 10 is provided with a supporting hole 15, the diameter of the supporting hole 15 is designed according to the diameter of the stepped surface 23, the inside of the supporting hole 15 is in contact with the stepped surface 23 of the sliding bolt 2, axial limiting is formed, the coaxiality when the sliding bolt 2 is inserted is ensured, the clamping error and vibration influence are reduced through the main shaft hole mold 1, the machining precision of the sliding bolt 2 is significantly improved, and the high-precision machining requirement is met.

[0020] The sliding bolt 2 comprises a blank outer circle 25, the right end of the blank outer circle 25 is turned to have a circular ring plate 26, the right end of the circular ring plate 26 is turned to have a large end head 21, the left end of the blank outer circle 25 is turned to have a stepped surface 23, the left end of the stepped surface 23 is turned to have a small end 22, the left side of the small end 22 is turned to have an end face 24, and the center of the end face 24 is provided with a center hole 28.

[0021] The outer surface of the sliding bolt 2 is inserted with a chuck 3, the chuck 3 is in contact with the circular ring plate 26 to generate axial limiting, and the sliding bolt 2 is clamped through the chuck 3.

[0022] One side of the sliding bolt 2 is provided with a tool 4 for turning the sliding bolt 2.

[0023] The outer ring 11 is arranged concentrically with the inner groove 12.

[0024] When the device is used, the first step is to install the sliding bolt 2 on the machine tool chuck 3, process the small end 22 of the sliding bolt 2 and turn the flat end face 24. The second step is to install the main shaft hole mold 1 on the main shaft of the machine tool, fasten it in the corresponding position of the main shaft of the machine tool through the through holes 14, insert the small end 22 of the sliding bolt 2 into the main shaft hole mold 1 and pass through the supporting hole 15, realize the axial position movement of the sliding bolt 2 by using the stepped surface 23 of the small end 22 to contact the inside vertical surface of the supporting hole 15, and clamp the chuck 3 of the machine tool to the blank outer circle 25 close to the large end of the sliding bolt 2. At this time, the head of the sliding bolt 2 is processed, and the total length is turned. The third step is to remove the main shaft hole mold 1, clamp the bolt head processed in the previous process with the machine tool chuck 3, use a center pin to press against the center hole 28 of the small end 22 of the bolt, and rough turn the threaded outer circle and finish turning the trapezoidal thread, complete all processing. The clamping mode has good processing stability, the original two and four steps are combined into the third step through the design of the main shaft hole mold 1, the original four times of clamping processing is changed into three times, the clamping frequency is reduced, and the production efficiency is improved.

Claims

1. A die for swage bolting, characterized by: Including the main shaft hole mould (1), the inside insertion of main shaft hole mould (1) has sliding bolt (2); The main shaft hole mould (1) includes a main mould (10), the left end of the main mould (10) is sleeved with an outer ring (11) fixed thereto, an inner groove (12) is formed in the main mould (10), a flange plate (13) is fixed to the left end of the outer ring (11), a plurality of through holes (14) are formed in the top of the flange plate (13) in a circular array, and a support hole (15) is formed in the right side center of the main mould (10).

2. The slide bolt machining die according to claim 1, characterized by: The sliding bolt (2) includes a blank outer circle (25), a circular ring plate (26) is turned on the right end of the blank outer circle (25), a large end head (21) is turned on the right end of the circular ring plate (26), a stepped surface (23) is turned on the left end of the blank outer circle (25), a small end (22) is turned on the left end of the stepped surface (23), an end face (24) is turned on the left side of the small end (22), and a center hole (28) is formed in the center of the end face (24).

3. The sliding bolt machining die according to claim 2, characterized by: The outer surface of the sliding bolt (2) is inserted with a chuck (3), and the chuck (3) is in contact with the circular ring plate (26).

4. The slide bolt machining die according to claim 1, characterized by: A cutter (4) is arranged on one side of the sliding bolt (2) for turning the sliding bolt (2).

5. The slide bolt machining die according to claim 1, characterized by: The outer ring (11) is arranged concentrically with the inner groove (12).

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