阅读说明：本技术 弹簧热处理变形限制装置 (Spring heat treatment deformation limiting device ) 是由 祝鹤 潘新 张晓冬 于 2019-11-21 设计创作，主要内容包括：本发明公开了一种弹簧热处理变形限制装置,其包括底座、盖板、侧挡板和限位块；其中盖板设置有两块,位于底座的上方,侧挡板设置有两块,位于底座的两侧,限位块位于底座和盖板之间,位于底座的前端,从而在底座、盖板、侧挡板和限位块之间形成弹簧热处理变形的限位空间。本发明提供的弹簧热处理变形限制装置可以对弹簧热处理过程中产生的主要变形如纵向拉长、扭曲、外径松弛等进行有效限制。装置各部件与弹簧的接触均为面接触,避免了对弹簧表面的划伤。可批次性处理多个弹簧,极大提高了生产效率。每套装置适用于多种尺寸的弹簧,可以实现重复利用,显著降低生产成本。(The invention discloses a spring heat treatment deformation limiting device which comprises a base, a cover plate, side baffles and a limiting block, wherein the side baffles are arranged on the base; wherein the apron is provided with two, is located the top of base, and the side shield is provided with two, is located the both sides of base, and the stopper is located between base and the apron, is located the front end of base to form the spacing space that spring thermal treatment warp between base, apron, side shield and stopper. The spring heat treatment deformation limiting device provided by the invention can effectively limit main deformation such as longitudinal elongation, distortion, outer diameter relaxation and the like generated in the spring heat treatment process. All parts of the device are in surface contact with the spring, so that the surface of the spring is prevented from being scratched. A plurality of springs can be processed in batches, and the production efficiency is greatly improved. Each set of device is suitable for springs of various sizes, can realize reuse, and obviously reduces production cost.)

1. The spring heat treatment deformation limiting device is characterized by comprising a base (1), a cover plate (2), a side baffle (3) and a limiting block (4); the two cover plates (2) are arranged above the base (1), the two side baffles (3) are arranged at two sides of the base (1), and the limiting blocks (4) are arranged between the base (1) and the cover plates (2) and at the front end of the base (1), so that limiting spaces for heat treatment deformation of springs are formed among the base (1), the cover plates (2), the side baffles (3) and the limiting blocks (4);

the base (1) comprises a base limiting block connecting part (101) positioned at the front end, a spring placing table (102) positioned in the middle and a cover plate connecting part (103) positioned at the tail; the height of the cover plate connecting part (103) is higher than that of the spring placing table (102), a base limiting block butt joint groove (104) is formed in the front end of the base limiting block connecting part (101) and used for being in butt joint with the limiting block (4), base side baffle butt joint holes (105) are formed in two side walls of the spring placing table (102) and used for being connected with the side baffles (3), and a base cover plate butt joint hole (106) is formed in the upper surface of the cover plate connecting part (103) and used for being connected with the cover plate (2);

the cover plates (2) comprise two blocks, and the two cover plates (2) are arranged in a bilateral symmetry manner; the cover plate (2) comprises a cover plate limiting block connecting part (201) positioned at the front end, a cover plate body (202) positioned at the middle part and a base connecting part (203) positioned at the tail part, wherein a cover plate limiting block butt joint groove (204) is formed in the front end of the cover plate limiting block connecting part (201) and used for butt joint with the limiting block (4), a protruding end (205) is arranged on a long side of one side of the cover plate body (202), the protruding end (205) extends to the end part of the cover plate limiting block connecting part (201), and when the cover plate is used, the protruding ends (205) of the two cover plates (2) are positioned on the outer side and are respectively aligned and attached to; the base connecting part (203) is provided with a cover plate base butt joint hole (206) for connecting with the base (1);

the side baffle (3) is of a rectangular plate-shaped structure, and the width of the side baffle (3) is greater than the height of the spring placing table (102) and less than the height of the cover plate connecting part (103); the surface of the side baffle (3) is provided with a plurality of side baffle base butt joint holes (301) which are used for matching with the base side baffle butt joint holes (105) of the spring placing table (102) and connecting the side baffle (3) with the spring placing table (102);

a limiting block base butt joint hole (401) is formed in the center of the limiting block (4), and the limiting block base butt joint hole (401) is matched with the base limiting block butt joint groove (104) to fix the limiting block base butt joint hole and the base limiting block butt joint groove; two sides of the butt joint hole (401) of the base of the limiting block are symmetrically provided with a butt joint hole (402) of the cover plate of the limiting block, the butt joint holes (402) of the cover plate of the limiting block are respectively matched with the butt joint grooves (204) of the cover plate and the limiting block of the two cover plates (2), and the two cover plates (2) and the limiting block (4) are fixed.

2. The device for limiting the deformation of a spring in a heat treatment according to claim 1, wherein the base (1) is made of a TA15 titanium alloy plate.

Technical Field

The invention belongs to the technical field of machining, and particularly relates to a spring heat treatment deformation limiting device.

Background

The spring is a common part in modern manufacturing industry, and mainly plays the functions of controlling mechanical movement, resetting, buffering, pressing and the like in assembly. The metal spring is generally formed by cold forming and needs to be subjected to heat treatment before use. The stress is released during the heat treatment process to easily cause the deformation of the spring, the deformation forms mainly comprise longitudinal elongation, distortion, outer diameter relaxation and the like, the deformation not only causes the dimensional deviation of the spring, but also seriously affects the service performance of the spring, and therefore, the limitation is required to obtain qualified products.

The existing spring manufacturing technology adopts a steel wire bundling method to limit heat treatment deformation, generally 3-4 steel wires are used for bundling and winding the spring along the elastic force direction, and the method mainly has the following defects: (1) the limit on deformation is single, only the longitudinal elongation of the spring can be limited, and the limit on distortion and the relaxation of the outer diameter is insufficient; (2) for non-wear-resistant materials such as titanium alloy springs, the binding of steel wires is easy to cause surface scratches, and the use quality of the springs is seriously influenced; (3) the bundling of steel wires needs to consume a large amount of manpower and time, each spring needs to be bundled independently, the labor cost and the time cost are high, the repeated utilization cannot be realized, and the production efficiency is seriously influenced.

Disclosure of Invention

The present invention is directed to a device for limiting thermal deformation of a spring, which solves the above problems of the prior art.

The technical scheme of the invention is as follows:

a spring heat treatment deformation limiting device comprises a base 1, a cover plate 2, a side baffle 3 and a limiting block 4; wherein apron 2 is provided with two, is located the top of base 1, and side shield 3 is provided with two, is located the both sides of base 1, and stopper 4 is located between base 1 and apron 2, is located the front end of base 1 to form the spacing space that spring thermal treatment warp between base 1, apron 2, side shield 3 and stopper 4.

The base 1 comprises a base limiting block connecting part 101 positioned at the front end, a spring placing table 102 positioned at the middle part and a cover plate connecting part 103 positioned at the tail part; the cover plate connecting portion 103 is higher than the spring placing table 102, a base limit block butt joint groove 104 is formed in the front end of the base limit block connecting portion 101 and used for being in butt joint with the limit block 4, base side baffle butt joint holes 105 are formed in two side walls of the spring placing table 102 and used for being connected with the side baffles 3, and a base cover plate butt joint hole 106 is formed in the upper surface of the cover plate connecting portion 103 and used for being connected with the cover plate 2.

In one particular embodiment, base 1 is fabricated from a sheet of TA15 titanium alloy.

The cover plates 2 comprise two, and the two cover plates 2 are arranged in a bilateral symmetry manner; the cover plate 2 comprises a cover plate limiting block connecting part 201 positioned at the front end, a cover plate body 202 positioned in the middle and a base connecting part 203 positioned at the tail, wherein the front end of the cover plate limiting block connecting part 201 is provided with a cover plate limiting block butt joint groove 204 for butt joint with the limiting block 4, a long edge of one side of the cover plate body 202 is provided with a convex end 205, the convex end 205 extends to the end part of the cover plate limiting block connecting part 201, and when the cover plate 2 is used, the convex ends 205 of the two cover plates 2 are positioned at the outer sides and are respectively aligned and attached to the upper end faces; the base connection portion 203 is provided with a cover plate base docking hole 206 for connecting with the base 1.

The side baffle 3 is of a rectangular plate-shaped structure, and the width of the side baffle 3 is greater than the height of the spring placing table 102 and less than the height of the cover plate connecting part 103; the surface of the side dam 3 is provided with a plurality of side dam base mating holes 301 for mating with the base side dam mating holes 105 of the spring placement station 102 to connect the side dam 3 with the spring placement station 102.

A limiting block base butt joint hole 401 is formed in the center of the limiting block 4, and the limiting block base butt joint hole 401 is matched with the base limiting block butt joint groove 104 to fix the limiting block base butt joint hole and the base limiting block butt joint groove; two sides of the abutment hole 401 of the base of the stop block are symmetrically provided with an abutment hole 402 of the stop block cover plate, and the abutment holes 402 of the two stop block cover plates are respectively matched with the abutment grooves 204 of the cover plate stop blocks of the two cover plates 2 to fix the two cover plates 2 and the stop block 4.

The invention has the advantages that:

the spring heat treatment deformation limiting device provided by the invention can effectively limit main deformation such as longitudinal elongation, distortion, outer diameter relaxation and the like generated in the spring heat treatment process. All parts of the device are in surface contact with the spring, so that the surface of the spring is prevented from being scratched. A plurality of springs can be processed in batches, and the production efficiency is greatly improved. Each set of device is suitable for springs of various sizes, can realize reuse, and obviously reduces production cost.

Drawings

Fig. 1 is an assembly view of a spring heat treatment deformation restricting device provided in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a base of a spring thermal treatment deformation limiting device provided in an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a cover plate of a spring heat treatment deformation limiting device provided in an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a side barrier of the spring heat treatment deformation limiting device provided in the embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a limiting block of the spring heat treatment deformation limiting device provided in the embodiment of the present invention.

Fig. 6 is a schematic view of a form of restriction of a spring by using the spring heat treatment deformation restricting device provided in the embodiment of the present invention.

In the figure: 1, a base; 101 a base stop block connection; 102 a spring placing table; 103 a cover plate connecting part; 104 a base limiting block butt joint groove; 105 base side baffle docking holes; 106 base cover plate docking holes; 2, covering a plate; 201 cover plate limiting block connecting part; 202 a cover plate body; 203 a base connection part; 204 cover plate limiting block butt joint grooves; 205 a protruding end; 206 cover plate base docking holes; 3, side baffle plates; 301 side baffle base docking holes; 4, a limiting block; 401 a limit block base butt joint hole; 402 a stopper cover plate butt hole; 5, limiting the distortion of the cover plate; 6, limiting the distortion and the deformation by a limiting block clamping spring to limit the relaxation of the outer diameter; 7, limiting longitudinal elongation of the lower edge of the side baffle clamping earring; the upper edge of the cover plate convex end clamping earring is limited to be elongated longitudinally by 8.

Detailed Description

The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.

It is to be understood that the appended drawings are not to scale, but are merely drawn with appropriate simplifications to illustrate various features of the basic principles of the invention. Specific design features of the invention disclosed herein, including, for example, specific dimensions, orientations, locations, and configurations, will be determined in part by the particular intended application and use environment.

In the several figures of the drawings, identical or equivalent components (elements) are referenced with the same reference numerals.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Fig. 1 is an assembly view of a spring heat treatment deformation restricting device provided in an embodiment of the present invention. Referring to fig. 1, in the present embodiment, the spring thermal treatment deformation limiting device includes a base 1, a cover plate 2, a side baffle 3, and a stopper 4; wherein apron 2 is provided with two, is located the top of base 1, and side shield 3 is provided with two, is located the both sides of base 1, and stopper 4 is located between base 1 and apron 2, is located the front end of base 1 to form the spacing space that spring thermal treatment warp between base 1, apron 2, side shield 3 and stopper 4.

Fig. 2 is a schematic structural diagram of a base of a spring thermal treatment deformation limiting device provided in an embodiment of the present invention. As shown in fig. 2, in the present embodiment, the base 1 includes a base stopper connecting portion 101 at the front end, a spring placing table 102 at the middle portion, and a cover plate connecting portion 103 at the rear portion; the cover plate connecting portion 103 is higher than the spring placing table 102, a base limit block butt joint groove 104 is formed in the front end of the base limit block connecting portion 101 and used for being in butt joint with the limit block 4, base side baffle butt joint holes 105 are formed in two side walls of the spring placing table 102 and used for being connected with the side baffles 3, and a base cover plate butt joint hole 106 is formed in the upper surface of the cover plate connecting portion 103 and used for being connected with the cover plate 2.

In one particular embodiment, base 1 is fabricated from a sheet of TA15 titanium alloy.

It can be seen that the base 1 provides three interfaces which can be respectively butted with the cover plate 2, the side baffle 3 and the limiting block 4. After the springs are sequentially laid on the base 1, the cover plate 2, the side baffle 3 and the limiting block 4 are locked through the bolts, and the limitation on the springs can be realized.

Fig. 3 is a schematic structural diagram of a cover plate of a spring heat treatment deformation limiting device provided in an embodiment of the present invention. Referring to fig. 3, in the present embodiment, the cover plates 2 include two, and the two cover plates 2 are arranged in bilateral symmetry; the cover plate 2 comprises a cover plate limiting block connecting part 201 positioned at the front end, a cover plate body 202 positioned in the middle and a base connecting part 203 positioned at the tail, wherein the front end of the cover plate limiting block connecting part 201 is provided with a cover plate limiting block butt joint groove 204 for butt joint with the limiting block 4, a long edge of one side of the cover plate body 202 is provided with a convex end 205, the convex end 205 extends to the end part of the cover plate limiting block connecting part 201, and when the cover plate 2 is used, the convex ends 205 of the two cover plates 2 are positioned at the outer sides and are respectively aligned and attached to the upper end faces; the base connection portion 203 is provided with a cover plate base docking hole 206 for connecting with the base 1.

The spring heat treatment deformation limiting device comprises two cover plates 2 which are designed in a bilateral symmetry mode, and the protruding ends 205 face outwards in the assembling process. The spring is laid on the base 1 and then covered with the cover plate 2, and the cover plate 2 is locked with the base 1, the cover plate 2 and the limiting block 4 through bolts. The cover plate 2 mainly limits the up-and-down torsional deformation of the spring, and meanwhile, the protruding end 205 can be matched with the side baffle 3 to limit the longitudinal elongation of the spring together.

Fig. 4 is a schematic structural diagram of a side barrier of the spring heat treatment deformation limiting device provided in the embodiment of the present invention. As shown in fig. 4, in the present embodiment, the side guard 3 has a rectangular plate-like structure, and the width of the side guard 3 is greater than the height of the spring placement base 102 and less than the height of the cover connection portion 103; the surface of the side dam 3 is provided with a plurality of side dam base mating holes 301 for mating with the base side dam mating holes 105 of the spring placement station 102 to connect the side dam 3 with the spring placement station 102.

The spring heat treatment deformation limiting device comprises two side baffles 3 which are designed to be bilaterally symmetrical and are connected and locked with corresponding interfaces on the base 1 through bolts. The side baffle 3 is mainly used for limiting the longitudinal elongation of the spring, the two ends of the lower edge of the spring ear ring can be clamped after the side baffle is fixed with the base 1, the upper edge of the spring ear ring is clamped by the protruding end 205 of the cover plate 2, and the limitation of longitudinal elongation deformation is realized together.

Fig. 5 is a schematic structural diagram of a limiting block of the spring heat treatment deformation limiting device provided in the embodiment of the present invention. As shown in fig. 5, in this embodiment, a stopper base abutting hole 401 is formed in the center of the stopper 4, and the stopper base abutting hole 401 is matched with the base stopper abutting groove 104 to fix the two; two sides of the abutment hole 401 of the base of the stop block are symmetrically provided with an abutment hole 402 of the stop block cover plate, and the abutment holes 402 of the two stop block cover plates are respectively matched with the abutment grooves 204 of the cover plate stop blocks of the two cover plates 2 to fix the two cover plates 2 and the stop block 4.

The limiting block 4 is a fixing device at the front end of the device, can slide along the base limiting block butt joint groove 104 of the base 1 for a certain stroke, is used for adjusting the number of the laying springs and clamping and fixing the springs, and is mainly used for limiting the left and right torsional deformation of the springs. The limiting block 4 comprises three interfaces and is respectively locked and connected with the base 1 and the two cover plates 2 by bolts.

Fig. 6 is a schematic view of a form of restriction of a spring by using the spring heat treatment deformation restricting device provided in the embodiment of the present invention. Fig. 6 shows a form of restriction of the spring by the device of the present invention. Through the cooperation among each part, can realize the effective restriction to various main deformations in the spring heat treatment process, realize the control to the external dimensions to obtain qualified product.

The specific steps of using the spring to heat treat the deformation limiting device are as follows:

(1) the springs are sequentially and closely laid on the spring placing table 102 of the base 1, and the earrings are adjusted to be parallel to the plane of the spring placing table 102;

(2) the side dam 3 is connected to the base 1 through the side dam base docking hole 301 and the base side dam docking hole 105 using bolts. Finely adjusting the side baffle 3 to clamp the lower edge of the spring earring, and locking the bolt after adjustment;

(3) cover plate 2 is closed and the cover plate 2 is attached to the base 1 using bolts through the base cover plate docking holes 106 and the cover plate base docking holes 206. The cover plate 2 is adjusted to ensure that the surface of the spring is tightly pressed and uniformly contacted, the protruding end 205 can clamp the upper edge of the spring ear ring, and the bolt is locked after adjustment;

(4) the front end of the device slides into the limiting block 4, the limiting block 4 is adjusted to clamp the spring, the bolt is used after adjustment, the limiting block 4 and the base 1 are locked through the base limiting block butt joint groove 104 and the limiting block base butt joint hole 401, and the cover plate 2 and the limiting block 4 are connected and locked through the limiting block cover plate butt joint hole 402 and the cover plate limiting block butt joint groove 204 by using the bolt.

The spring heat treatment deformation limiting device provided by the invention provides a brand-new solution for limiting the heat treatment deformation of the spring. Through the assembly design of the limiting blocks, the cover plate and the side baffle plates, various types of deformation of the spring in the heat treatment process can be comprehensively limited, all parts in the device are in surface contact with the spring, and the damage to the surface of the spring is avoided to the maximum extent. Meanwhile, the modularized design ensures that the device can be suitable for springs with different sizes, and each device can process 30 springs at most simultaneously, thereby greatly improving the production efficiency and the product percent of pass.

The above description of exemplary embodiments has been presented only to illustrate the technical solution of the invention and is not intended to be exhaustive or to limit the invention to the precise form described. Obviously, many modifications and variations are possible in light of the above teaching to those skilled in the art. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to thereby enable others skilled in the art to understand, implement and utilize the invention in various exemplary embodiments and with various alternatives and modifications. It is intended that the scope of the invention be defined by the following claims and their equivalents.