CN215799725U

CN215799725U - Quenching device for producing high-strength bolts

Info

Publication number: CN215799725U
Application number: CN202122150732.7U
Authority: CN
Inventors: 陈钢
Original assignee: Jiangsu Xincheng Standard Component Co ltd
Current assignee: Jiangsu Xincheng Standard Component Co ltd
Priority date: 2021-09-07
Filing date: 2021-09-07
Publication date: 2022-02-11
Anticipated expiration: 2031-09-07

Abstract

The utility model belongs to the technical field of bolt processing, in particular to a quenching device for producing a high-strength bolt, which aims at solving the problem of uneven quenching when the head of a high-strength countersunk head bolt is quenched, and the following scheme is provided, wherein the quenching device comprises a quenching box and a guide sleeve, and the guide sleeve is communicated with the top of the quenching box; according to the utility model, the rotating wheel is rotationally adjusted, so that the bolt placed on the supporting block is centrally positioned through the positioning block, and the supporting block moves downwards, thereby effectively improving the quenching treatment uniformity of the electric heating sleeve on the head part of the bolt, and the positioning block can drive the supporting block to move upwards while releasing the limitation on the bolt through the reverse adjustment of the rotating wheel, so that the bolt is ejected upwards for a certain distance, and the limiting effect on the rotating gear is realized through the fixture block, thereby improving the convenience for taking out the bolt after the quenching treatment.

Description

Quenching device for producing high-strength bolts

Technical Field

The utility model relates to the technical field of bolt processing, in particular to a quenching device for producing a high-strength bolt.

Background

Quenching is a heat treatment process for heating to above a critical temperature, preserving heat for a certain time, and then cooling at a speed higher than a critical cooling speed so as to obtain an unbalanced structure (bainite can be obtained or single-phase austenite can be kept according to needs) mainly comprising martensite.

The bolt is a mechanical part, a cylindrical threaded fastener matched with a nut is a fastener composed of a head and a cylinder with a screw rod provided with an external thread, when the high-strength countersunk bolt is quenched, the threaded part of the bolt is clamped by a clamp and placed in a heating sleeve for quenching, when the head of the bolt is quenched, the head of the bolt is easily in a state of central deviation in the heating sleeve, so that the quenching treatment on the bolt head is uneven, and the quenching treatment effect on the bolt head is influenced.

Therefore, a quenching device for producing high-strength bolts is needed to solve the problem of uneven quenching when the head of the high-strength countersunk head bolt is quenched.

SUMMERY OF THE UTILITY MODEL

The quenching device for producing the high-strength bolt solves the problem of uneven quenching when the head of the high-strength countersunk head bolt is quenched.

In order to achieve the purpose, the utility model adopts the following technical scheme: quenching device for producing high-strength bolts comprises a quenching box, wherein the quenching box further comprises

The guide sleeve is communicated with the top of the quenching box, an electric heating sleeve is arranged below the quenching box and positioned at the lower part of the guide sleeve, a supporting block penetrating through the inner wall of the bottom of the quenching box is arranged at the center of the electric heating sleeve, a cushion block is fixed at the bottom end of the supporting block, and a compression spring is fixed between the cushion block and the bottom surface of the quenching box;

the adjusting rod slides and penetrates through the guide sleeve, the guide sleeve is located on two sides of the adjusting rod and slides through the positioning rod, the adjusting rod and the two positioning rods are fixed at the inner ends of the positioning rods, a traction strip is fixed between the positioning rods and the bottoms of the cushion blocks, and an adjusting assembly matched with the adjusting rod is arranged at the top of the quenching box.

Preferably, the adjusting assembly comprises

The half gear is rotationally connected with the top surface of the quenching box, a rotating wheel coaxially mounted with the half gear is arranged at the top of the quenching box, and a toothed ring meshed with the half gear is connected to the top surface of the quenching box in a sliding manner;

the quenching device comprises two rotating gears, wherein the two rotating gears are rotatably connected with the top surface of a quenching box, the side walls of two sides of a toothed ring are respectively fixed with a toothed strip a, the toothed strips a are meshed with the adjacent rotating gears, the top surface of the quenching box is fixed with four limiting sleeves which are symmetrically distributed, the inner walls of the limiting sleeves are slidably connected with toothed strips b, the toothed strips b are meshed with the adjacent rotating gears, and connecting rods are hinged between the toothed strips b and the adjacent positioning rods.

Preferably, the tooth-shaped strips a and the adjacent tooth-shaped strips b are distributed in a staggered manner, and the connecting rods and the positioning rods are distributed in an inclined manner.

Preferably, the quenching box is provided with a fixed sleeve outside the rotating gear, a limiting rod penetrates through the fixed sleeve in a sliding manner, a clamping block matched with the rotating gear is fixed at the inner end of the limiting rod, pulling plates are fixed at the bottoms of the outer ends of the two limiting rods together, and two limiting springs are fixed on the side walls of the pulling plates and the quenching box and are symmetrically distributed.

Preferably, the top surface of the pulling plate and the bottom surface of the toothed ring are located on the same horizontal plane, and the top end and the bottom end of the pulling plate are both provided with recessed areas.

Preferably, the inner surface of the positioning block is an arc surface, and the guide sleeves are distributed in a funnel shape.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the rotating wheel is rotationally adjusted, so that the bolt placed on the supporting block is centrally positioned through the positioning block, and the supporting block moves downwards, thereby effectively improving the quenching treatment uniformity of the electric heating sleeve on the head part of the bolt, and the positioning block can drive the supporting block to move upwards while releasing the limitation on the bolt through the reverse adjustment of the rotating wheel, so that the bolt is ejected upwards for a certain distance, and the limiting effect on the rotating gear is realized through the fixture block, thereby improving the convenience for taking out the bolt after the quenching treatment.

2. According to the utility model, the clamping block is always clamped with the tooth of the rotating gear under the elastic force action of the limiting spring, so that the position limitation of the rotating gear when the adjusting rod is adjusted can be fully improved, and the quenching uniformity and the convenience in taking and placing of the bolt during quenching can be improved to a certain extent.

Drawings

FIG. 1 is a schematic view of the overall structure of a quenching device for producing a high-strength bolt provided by the utility model;

FIG. 2 is a schematic structural diagram of a cushion block of a quenching device for producing a high-strength bolt, which is provided by the utility model;

FIG. 3 is a schematic view of a local structure at a supporting block of the quenching device for producing the high-strength bolt provided by the utility model;

fig. 4 is an enlarged view of the area a in fig. 3.

In the figure: 1. a quenching box; 2. a guide sleeve; 3. an electric jacket; 4. a support block; 5. a compression spring; 6. adjusting a rod; 7. positioning a rod; 8. positioning blocks; 9. a traction bar; 10. an adjustment assembly; 101. a half gear; 102. a rotating wheel; 103. a toothed ring; 104. a rotating gear; 105. a tooth-shaped strip a; 106. a limiting sleeve; 107. a toothed strip b; 108. a connecting rod; 11. fixing a sleeve; 12. a limiting rod; 13. a clamping block; 14. pulling a plate; 15. a limiting spring; 16. and a cushion block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-4, a quenching device for producing high-strength bolts comprises a quenching box 1, wherein the quenching box 1 further comprises a guide sleeve 2, the guide sleeve 2 is communicated with the top of the quenching box 1, an electric heating sleeve 3 is arranged below the quenching box 1 and located below the guide sleeve 2, a supporting block 4 penetrating through the inner wall of the bottom of the quenching box 1 is arranged at the center of the electric heating sleeve 3, a cushion block 16 is fixed at the bottom end of the supporting block 4, and a compression spring 5 is fixed on the bottom surfaces of the cushion block 16 and the quenching box 1; adjust pole 6, adjust pole 6 and slide and run through uide bushing 2, uide bushing 2 is located the both sides of adjusting pole 6 and all slides and runs through locating lever 7, adjust pole 6 and the inner of two locating levers 7 all is fixed with locating piece 8, be fixed with between the bottom of locating lever 7 and cushion 16 and pull strip 9, the top of quenching case 1 is provided with and adjusts pole 6 matched with adjusting part 10, concretely, pull strip 9 and be the elasticity billet, be used for guaranteeing its and the abundant contact of quenching case 1 surface, thereby when making pull strip 9 not exert the effect to supporting shoe 4, can drive supporting shoe 4 through the elasticity of compression spring 5 upwards ejecting, setting through adjusting part 10, make the bolt form the center location support in the electric heat cover 3, effectively improve the homogeneity of bolt when quenching treatment, be convenient for taking out the bolt simultaneously after its quenching treatment is accomplished.

The adjusting assembly 10 comprises a half gear 101, the half gear 101 is rotatably connected with the top surface of the quenching box 1, a rotating wheel 102 coaxially mounted with the half gear 101 is arranged at the top of the quenching box 1, and a toothed ring 103 meshed with the half gear 101 is slidably connected with the top surface of the quenching box 1; the quenching device comprises two rotating gears 104, wherein the two rotating gears 104 are rotatably connected with the top surface of the quenching box 1, the side walls of two sides of a toothed ring 103 are respectively fixed with a toothed strip a105, the toothed strip a105 is meshed with the adjacent rotating gear 104, the top surface of the quenching box 1 is fixed with four symmetrically-distributed limiting sleeves 106, the inner walls of the limiting sleeves 106 are slidably connected with toothed strips b107, the toothed strips b107 are meshed with the adjacent rotating gears 104, and connecting rods 108 are hinged between the toothed strips b107 and the adjacent positioning rods 7; the tooth-shaped strips a105 and the adjacent tooth-shaped strips b107 are distributed in a staggered manner, and the connecting rods 108 and the positioning rods 7 are distributed in an inclined manner.

The fixed sleeve 11 is fixed on the outer side of the rotating gear 104 of the quenching box 1, the limiting rods 12 penetrate through the fixed sleeve 11 in a sliding mode, the clamping blocks 13 matched with the rotating gear 104 are fixed at the inner ends of the limiting rods 12, the pulling plates 14 are jointly fixed at the bottoms of the outer ends of the two limiting rods 12, the two limiting springs 15 are symmetrically distributed on the side walls of the pulling plates 14 and the quenching box 1, specifically, the clamping blocks 13 are always clamped with the teeth of the rotating gear 104 under the elastic action of the limiting springs 15, the position limiting of the adjusting rods 6 when the adjusting rods 6 are adjusted by the rotating wheel 102 can be fully improved, and the quenching uniformity and the taking and placing convenience of bolts during quenching are improved to a certain degree.

The top surface of the pulling plate 14 and the bottom surface of the toothed ring 103 are located on the same horizontal plane, the top end and the bottom end of the pulling plate 14 are both provided with recessed areas, the height of the pulling plate 14 is set, interference on the pulling plate 14 is avoided when the toothed ring 103 moves outwards, the recessed areas of the pulling plate 14 are set, and convenience in pulling the pulling plate 14 is improved.

The inner surface of locating piece 8 is the cambered surface setting, and uide bushing 2 is hourglass hopper-shaped and distributes, and the setting of 8 cambered surfaces of locating piece strengthens its and bolt screw portion's contact area to improve the homogeneity when quenching treatment, the setting of 2 shapes of uide bushing provides certain guide effect to placing the processing before quenching the bolt.

The working principle is as follows: when the countersunk bolt head is quenched, the pull plate 14 is pulled, the fixture block 13 releases the limiting effect on the rotating gear 104, the rotating wheel 102 rotates to drive the half gear 101 to synchronously rotate, the toothed ring 103 drives the adjusting rod 6 to move towards the outer side of the guide sleeve 2 due to the meshing transmission between the toothed ring 103 and the half gear 101, the toothed strip a105 synchronously moves outwards, the toothed strip b107 moves towards the opposite direction of the toothed strip a105 through the meshing transmission function between the rotating gear 104, the toothed strip a105 and the toothed strip b107, the positioning rod 7 moves towards the outer side of the guide sleeve 2 through the action of the connecting rod 108, so that the three positioning blocks 8 move towards the inner wall of the guide sleeve 2, the traction strip 9 releases the limiting effect on the cushion block 16, and the supporting block 4 moves upwards in the quenching box 1 through the elastic force action of the compression spring 5, at the moment, the acting force on the pulling plate 14 is loosened, namely the positioning treatment on the positioning block 8 is formed through the elastic force action of the limiting spring 15, at the moment, the threaded part of the countersunk head bolt is clamped through the clamp and is placed on the supporting block 4 to form supporting and positioning, at the moment, the limiting action of the clamping block 13 on the rotating gear 104 is relieved, the positioning block 8 can be reset through the reverse rotation of the rotating wheel 102, the threaded parts of a plurality of bolts of the positioning blocks 8 are clamped, meanwhile, the supporting block 4 synchronously moves downwards, so that the head part of the countersunk head bolt is positioned on the supporting block 4 and forms central quenching treatment through the electric heating sleeve 3, and the uniformity of the quenching treatment is improved; after quenching is finished, the limit of the rotating gear 104 is released by pulling the pulling plate 14, the rotating wheel 102 can rotate, so that the positioning effect of the bolt on the positioning block 8 is released, the supporting block 4 is ejected upwards through the elastic action of the pressing spring 5, the bolt can be taken out through the clamp after the rotating gear 104 is limited by the clamp block 13, and the convenience of taking out the bolt is effectively improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The quenching device for producing the high-strength bolt comprises a quenching box (1) and is characterized in that the quenching box (1) further comprises

The guide sleeve (2) is communicated with the top of the quenching box (1), an electric heating sleeve (3) is arranged below the guide sleeve (2) of the quenching box (1), a supporting block (4) penetrating through the inner wall of the bottom of the quenching box (1) is arranged at the center of the electric heating sleeve (3), a cushion block (16) is fixed at the bottom end of the supporting block (4), and a compression spring (5) is fixed on the bottom surfaces of the cushion block (16) and the quenching box (1);

adjust pole (6), it runs through to adjust pole (6) slip uide bushing (2), the both sides that uide bushing (2) are located adjust pole (6) all slide and have run through locating lever (7), adjust pole (6) and two the inner of locating lever (7) all is fixed with locating piece (8), locating lever (7) with be fixed with between the bottom of cushion (16) and pull strip (9), the top of quenching case (1) is provided with and adjusts pole (6) matched with adjusting part (10).

2. The quenching device for producing high-strength bolts as claimed in claim 1, wherein said adjusting assembly (10) comprises

The top surface of the quenching box (1) is provided with a rotating wheel (102) which is coaxially arranged with the half gear (101), and the top surface of the quenching box (1) is slidably connected with a toothed ring (103) which is meshed with the half gear (101);

the quenching device comprises rotating gears (104), the rotating gears (104) are arranged in two, the two rotating gears (104) are rotatably connected with the top surface of the quenching box (1), the side walls of the two sides of the toothed ring (103) are respectively provided with a toothed strip a (105), the toothed strip a (105) is meshed with the adjacent rotating gears (104), the top surface of the quenching box (1) is fixedly provided with four limiting sleeves (106) which are symmetrically distributed, the inner wall of each limiting sleeve (106) is slidably connected with a toothed strip b (107), the toothed strip b (107) is meshed with the adjacent rotating gears (104), and connecting rods (108) are hinged between the toothed strip b (107) and the adjacent positioning rods (7).

3. The quenching device for producing the high-strength bolt as claimed in claim 2, wherein the toothed bar a (105) and the adjacent toothed bar b (107) are distributed in a staggered manner, and the connecting rod (108) and the positioning rod (7) are distributed in an inclined manner.

4. The quenching device for producing the high-strength bolt as claimed in claim 2, wherein the quenching box (1) is provided with a fixed sleeve (11) at the outer side of the rotating gear (104), a limiting rod (12) penetrates through the fixed sleeve (11) in a sliding manner, a clamping block (13) matched with the rotating gear (104) is fixed at the inner end of the limiting rod (12), a pulling plate (14) is fixed at the bottom of the outer end of each of the two limiting rods (12), and two symmetrically distributed limiting springs (15) are fixed at the side walls of the pulling plate (14) and the quenching box (1).

5. The quenching device for producing the high-strength bolt as claimed in claim 4, wherein the top surface of the pulling plate (14) and the bottom surface of the toothed ring (103) are located on the same horizontal plane, and both the top end and the bottom end of the pulling plate (14) are provided with recessed areas.

6. The quenching device for producing the high-strength bolt as claimed in claim 1, wherein the inner surface of the positioning block (8) is arranged in a cambered surface, and the guide sleeve (2) is distributed in a funnel shape.