阅读说明：本技术 一种气门弹簧制备装置及方法 (Valve spring preparation device and method ) 是由 冯以盛 穆波 赵昱 刘力波 刘焕宝 程祥 于 2019-11-12 设计创作，主要内容包括：本发明公布了一种气门弹簧制备装置及方法,包括Scala机器人、机械爪手、气动夹紧组件、第一伺服电机、挂接板、第一丝杠组件、感应线圈、第二伺服电机、第二丝杠组件、第二感应线圈、龙门支架、传送带组件、工作平台、弹簧储备箱、气门弹簧、第一线圈挂接板和第二线圈挂接板。其中Scala机器人安装在传送带组件前方,带动机械爪手抓取弹簧储备箱中的气门弹簧,并将其安放在气动夹紧组件中,气动夹紧组件与传送带之间通过螺钉固定,均匀分布在传送带之上,气动夹紧装置安装在圆形凹槽内部,通过螺栓固定形成气动加紧组件,第一丝杠组件和第二丝杠组件通过螺栓安装在龙门支架上,第一伺服电机和第二伺服电机分别与第一丝杠组件和第二丝杠组件相连,线圈挂接板通过螺栓与第一丝杠组件和第二丝杠组件相连,第一感应线圈和第二感应线圈通过气动夹紧装置直接安装在线圈挂接板上。它不仅克服了传统气门弹簧柔性化差、表面脱碳、晶粒粗化等问题,而且可以提高气门弹簧生产效率和疲劳强度。(The invention discloses a valve spring preparation device and a method, which comprises a Scala robot, a mechanical claw, a pneumatic clamping assembly, a first servo motor, a hanging plate, a first lead screw assembly, an induction coil, a second servo motor, a second lead screw assembly, a second induction coil, a gantry support, a conveyor belt assembly, a working platform, a spring storage box, a valve spring, a first coil hanging plate and a second coil hanging plate. Wherein the Scala robot is installed in the place ahead of conveyer belt subassembly, drive the gripper hand and snatch the valve spring in the spring storage case, and lay it in pneumatic clamping unit, pass through the fix with screw between pneumatic clamping unit and the conveyer belt, evenly distributed is on the conveyer belt, pneumatic clamping device installs inside circular recess, form pneumatic clamping unit through bolt fastening, first lead screw subassembly and second lead screw subassembly pass through the bolt and install on gantry support, first servo motor and second servo motor link to each other with first lead screw subassembly and second lead screw subassembly respectively, the coil articulates board and links to each other with first lead screw subassembly and second lead screw subassembly through the bolt, first induction coil and second induction coil pass through pneumatic clamping device direct mount on the coil articulates board. The method not only overcomes the problems of poor flexibility, surface decarburization, grain coarsening and the like of the traditional valve spring, but also can improve the production efficiency and the fatigue strength of the valve spring.)

1. A valve spring preparation device is characterized by comprising a Scala robot (1), a mechanical claw (2), a pneumatic clamping assembly (3), a first servo motor (4), a coil hanging plate (5), a first lead screw assembly (6), an induction coil (7), a second servo motor (8), a second lead screw assembly (9), a second induction coil (10), a gantry support (11), a conveyor belt assembly (12), a working platform (13), a spring storage box (14), a valve spring (15), a first hanging plate (16) and a second hanging plate (17); the Scala robot (1) is installed in front of a conveyor belt assembly (12), a mechanical claw (2) is driven to grab a valve spring (17) in a spring storage box (14) and is placed in a pneumatic clamping assembly (3), the pneumatic clamping assembly (3) and the conveyor belt are fixed through screws and are evenly distributed on the conveyor belt, the pneumatic clamping device is installed inside a circular groove and is fixed through bolts to form the pneumatic clamping assembly (3), a first lead screw assembly (6) and a second lead screw assembly (9) are installed on a gantry support (11) through bolts, a first servo motor (4) and a second servo motor (8) are connected with the first lead screw assembly (6) and the second lead screw assembly (9) respectively, a coil hanging plate (5) is connected with the first lead screw assembly (6) and the second lead screw assembly (9) through bolts, and a first induction coil (7) and a second induction coil (10) are directly installed on the coil hanging plate (5) through the pneumatic clamping device ) The above.

2. The valve spring manufacturing apparatus and method according to claim 1, wherein the first induction coil (7) and the second induction coil (10) are mounted on the coil attachment plate (5) in common, or mounted on the first coil attachment plate (16) and the second coil attachment plate (17) respectively.

3. Valve spring manufacturing device and method according to claim 1, characterized in that the first induction coil (7) and the second induction coil (10) can be replaced as desired.

4. The valve spring preparation device and method according to claim 1, characterized in that 1 or more induction coils can be hung on the gantry support (11).

5. A valve spring manufacturing apparatus and method as claimed in claim 1, wherein the pneumatic clamping means is mounted in a groove of a conveyor belt to form a pneumatic clamping assembly (3).

6. The preparation method of the valve spring is characterized by comprising the following steps of:

the method comprises the following steps: a zero returning operation, namely, returning zero to the Scala robot (1), the conveyor belt assembly (12), the first servo motor (4) and the second servo motor (8);

step two: the Scala robot (1) grabs the valve spring (15) in the spring storage box (14) through the mechanical claw (2) and places the valve spring in the pneumatic clamping assembly (3);

step three: the conveyor belt assembly (12) moves forwards with the air valve spring (15), and when the conveyor belt assembly (12) moves to a fixed step length and the spring reaches a specified position, the conveyor belt assembly stops;

step four: the first servo motor (4) and the second servo motor (8) drive the first lead screw assembly (6) and the second lead screw assembly (9) to pull the first induction coil (7) and the second induction coil (10) on the coil hanging plate (5) to move downwards to a designated position;

step five: starting power supplies of the first induction coil (7) and the second induction coil (10) to heat the valve spring (9);

step six: after heating, the induction coil (6) moves upwards, the pneumatic clamping assembly (3) is opened, and the valve spring (9) falls into a heat treatment quenching medium pool.

Technical Field

The invention relates to a device and a method for preparing a valve spring, and belongs to the field of spring manufacturing and processing.

Background

The valve train is an important component of the engine, and the reliability and the service life of the engine are greatly influenced by the performance of the valve train. The valve spring is one of the components of the valve train, is positioned between the cylinder cover and the spring seat at the tail end of the valve stem, and is a key part for determining whether the valve train of the engine works normally. Therefore, the quality of the valve spring performance directly determines the reliability of the engine.

At present, the traditional preparation process of the valve spring mainly comprises two steps: the first method is to carry out the technological processes of cold drawing, heat treatment, coil spring, annealing, spring grinding, shot blasting, heat pressure strengthening and the like on raw materials to obtain the valve spring, wherein the raw materials are from steel mills, the cold drawing and the heat treatment are from cold elongation, and the rest technological processes are from spring mills; the second method is to carry out the technological processes of cold drawing, coil coiling, heat treatment, annealing, spring grinding, shot blasting, hot pressing and the like on the raw materials to obtain the valve spring, wherein the raw materials of the method are from a steel factory, but the rest technological processes are from a spring factory, although the method effectively solves the problem of large inventory, the heat treatment process adopts an air furnace continuous production mode, the problems of decarburization, insufficient hardness after quenching, more non-martensite, ferrite generation at the spring center and the like are easily generated, so that the residual deformation of the spring is generated, and the performance of the valve spring is seriously influenced. Therefore, in order to improve the performance of the valve spring, the innovative research and development of a novel valve spring preparation device and a novel valve spring preparation process are urgently needed.

Disclosure of Invention

In order to overcome the defects of the traditional valve spring preparation process, the invention provides a novel valve spring preparation device and a novel valve spring preparation method, and provides key technical support for improving the performance of a valve spring. The technical scheme is as follows:

the utility model provides a valve spring preparation facilities, its characterized in that spring preparation facilities includes scale robot, gripper hand, pneumatic clamping component, first servo motor, coil hitch plate, first lead screw subassembly, induction coil, second servo motor, second lead screw subassembly, second induction coil, longmen support, conveyer belt subassembly, work platform, spring storage box, valve spring, first hitch plate and second hitch plate. (ii) a The scala robot is installed in front of the conveying belt assembly, the mechanical gripper is driven to grab the valve spring in the spring storage box and place the valve spring in the pneumatic clamping assembly, the pneumatic clamping assembly and the conveying belt are fixed through screws and are evenly distributed on the conveying belt, the pneumatic clamping device is installed inside the circular groove, the pneumatic clamping assembly is formed through bolt fixing, the first lead screw assembly and the second lead screw assembly are installed on the gantry support through bolts, the first servo motor and the second servo motor are respectively connected with the first lead screw assembly and the second lead screw assembly, the coil hanging plate is connected with the first lead screw assembly and the second lead screw assembly through bolts, the first induction coil and the second induction coil are directly installed on the coil hanging plate through the pneumatic clamping device and can also be installed on the first coil hanging plate and the second coil hanging plate respectively.

The device and the method for manufacturing the valve spring are characterized in that the induction coil heats the valve spring from inside to outside, and the strength of the inner side of the spring is improved.

The device and the method for manufacturing the valve spring are characterized in that the induction coils can be installed on the coil hanging plates together, and also can be installed on the first coil hanging plate and the second coil hanging plate respectively, so that the independent control of the induction coils is realized.

The device and the method for manufacturing the valve spring are characterized in that the induction coil can be replaced as required, and flexible production of the valve springs with different sizes is realized.

The device and the method for preparing the valve spring are characterized in that the pneumatic clamping device is arranged in a groove of a conveying belt to form a pneumatic clamping assembly.

The device and the method for preparing the valve spring are characterized in that 1 or more induction coils can be hung on the gantry support, and the induction coils can be synchronously controlled and can also be independently controlled.

The device and the method for preparing the valve spring are characterized in that the clamping diameter range of the pneumatic clamping device is 0-100 mm.

The device and the method for manufacturing the valve spring are characterized in that the clamping range of the clamping device on the coil hanging plate is 0-100 mm.

The preparation method of the valve spring comprises the following specific operation processes:

the method comprises the following steps: performing zero returning operation, namely performing zero returning on the Scala robot, the conveyor belt assembly, the first servo motor and the second servo motor;

step two: the Scala robot grabs the valve spring in the spring storage box through a mechanical claw and places the valve spring in the pneumatic clamping assembly;

step three: the conveyor belt component moves forwards with the valve spring, and stops when the valve spring moves to a fixed step length and reaches a specified position;

step four: the first servo motor and the second servo motor start to work, and the first lead screw assembly and the second lead screw assembly are driven by the first servo motor and the second servo motor to pull the first induction coil and the second induction coil on the coil hanging plate to move downwards to a designated position;

step five: starting power supplies of the first induction coil and the second induction coil to perform heating treatment on the valve spring;

step six: after heating, the induction coil moves upwards, the pneumatic clamping assembly is opened, and the valve spring falls into the heat treatment quenching medium pool.

Compared with the prior art, the invention has the advantages that:

1. the invention relates to a device and a method for preparing a valve spring, wherein the process flow comprises the process flows of cold drawing, spring coiling, heat treatment, spring grinding, shot blasting, hot forced pressing and the like of spring steel; wherein, the heat treatment process stage mainly adopts an induction coil heating mode to overcome the problems of surface decarburization, grain coarsening and the like caused by heating in an air furnace.

2. Because the induction coil can be replaced as required, the one-time heat treatment of the valve springs with different diameters is realized, the flexible production of the valve springs is met, the cost is effectively reduced, and the requirements of energy conservation and environmental protection are met.

3. The induction coil is adopted for heat treatment of the valve spring, so that the processing efficiency of the valve spring can be greatly improved.

4. Because the main stressed area of the valve spring is the inner surface of the spring, the strength of the valve spring can be greatly improved by adopting a heating mode from inside to outside.

Drawings

FIG. 1 is a schematic view of an assembly of a valve spring manufacturing apparatus

FIG. 2 is an assembly diagram of a valve spring manufacturing apparatus with independent control of induction coils

FIG. 3 is an assembly diagram of a multi-conveyor-belt valve spring manufacturing device

In the figure: 1. a Scala robot; 2. a mechanical gripper; 3. a pneumatic clamping assembly; 4. a first servo motor; 5. a coil hanging plate; 6. a first lead screw assembly; 7. a first induction coil; 8. a second servo motor; 9. a second lead screw assembly; 10. a second induction coil; 11. a gantry support; 12. a conveyor belt assembly; 13. a working platform; 14. a spring reserve tank; 15. a valve spring; 16. a first coil hanging plate; 17. and the second coil is connected with the plate.

Detailed Description

In order to further illustrate the feasibility and the practicability of the invention patent, the invention patent is described in detail by combining the schematic diagrams.

A valve spring preparation device is shown in figures 1 and 2 and comprises a scala robot 1, a mechanical claw 2, a pneumatic clamping assembly 3, a first servo motor 4, a coil hanging plate 5, a first lead screw assembly 6, an induction coil 7, a second servo motor 8, a second lead screw assembly 9, a second induction coil 10, a gantry support 11, a conveyor belt assembly 12, a working platform 13, a spring storage box 14, a valve spring 15, a first coil hanging plate 16 and a second coil hanging plate 17. (ii) a The scala robot 1 is installed in front of a conveyor belt assembly 12, a mechanical claw hand 2 is driven to grab a valve spring 17 in a spring storage box 14 and place the valve spring 17 in a pneumatic clamping assembly 3, the pneumatic clamping assembly 3 and the conveyor belt are fixed through screws and are uniformly distributed on the conveyor belt, the pneumatic clamping device is installed inside a circular groove and forms a pneumatic clamping assembly 3 through bolt fixing, a first lead screw assembly 6 and a second lead screw assembly 9 are installed on a gantry support 11 through bolts, a first servo motor 4 and a second servo motor 8 are respectively connected with the first lead screw assembly 6 and the second lead screw assembly 9, a coil hanging plate 5 is connected with the first lead screw assembly 6 and the second lead screw assembly 9 through bolts, and a first induction coil 7 and a second induction coil 10 are directly installed on the coil hanging plate 5 through the pneumatic clamping device.

Fig. 2 is a general assembly diagram of a valve spring manufacturing device with independent control of induction coils, a first coil hanging plate 16 and a second coil hanging plate 17 are independently hung on a first lead screw assembly 6 and a second lead screw assembly 9, each induction coil can be independently controlled through a servo motor, and flexibility of manufacturing of the valve spring 15 is greatly improved.

A valve spring preparation method improves the valve spring performance through induction coil heating, as shown in figure 1, and the specific operation process is as follows:

the method comprises the following steps: a zeroing operation, namely zeroing the Scala robot 1, the conveyor belt assembly 12, the first servo motor 4 and the second servo motor 8;

step two: the Scala robot 1 grabs the valve spring 15 in the spring storage box 14 through the mechanical claw 2 and places the valve spring in the pneumatic clamping assembly 3;

step three: the conveyor belt assembly 12 moves forward with the pneumatic valve spring 15, and when the movement reaches a fixed step length and the spring reaches a specified position, the conveyor belt assembly 12 stops;

step four: the first servo motor 4 and the second servo motor 8 start to work, the first servo motor 4 and the second servo motor 8 drive the first lead screw assembly 6 and the second lead screw assembly 9 to pull the first induction coil 7 and the second induction coil 10 on the coil hanging plate 5 to move downwards to a designated position;

step five: starting power supplies of the first induction coil 7 and the second induction coil 10 to heat the valve spring 9;

step six: after heating, the induction coil 6 moves upwards, the pneumatic clamping assembly 3 is opened, and the valve spring 9 falls into the heat treatment quenching medium pool.

A valve spring preparation method improves the valve spring performance through induction coil heating, as shown in figure 2, and the specific operation process is as follows:

the method comprises the following steps: a zeroing operation, namely zeroing the Scala robot 1, the conveyor belt assembly 12, the first servo motor 4 and the second servo motor 8;

step two: the Scala robot 1 grabs the valve spring 15 in the spring storage box 14 through the mechanical claw 2 and places the valve spring in the pneumatic clamping assembly 3;

step three: the conveyor belt assembly 12 moves forward with the pneumatic valve spring 15, and when the movement reaches a fixed step length and the spring reaches a specified position, the conveyor belt assembly 12 stops;

step four: the first servo motor 4 and the second servo motor 8 start to work, the first servo motor 4 and the second servo motor 8 drive the first lead screw assembly 6 and the second lead screw assembly 9 to respectively pull the first coil hanging plate 16 and the first induction coil 7 and the second induction coil 10 on the second coil hanging plate 17 to downwards move to a specified position, and independent controllability of each induction coil is realized;

step five: starting power supplies of the first induction coil 7 and the second induction coil 10 to heat the valve spring 9;

step six: after heating, the induction coil 6 moves upwards, the pneumatic clamping assembly 3 is opened, and the valve spring 9 falls into the heat treatment quenching medium pool.

The present patent is not limited to the above-described embodiments, and various changes and modifications to the present patent are intended to be included within the scope of the claims and the equivalent technology of the present patent if they do not depart from the spirit and scope of the present patent.

Although the 1, Scala robot is used more herein; 2. a mechanical gripper; 3. a pneumatic clamping assembly; 4. a first servo motor; 5. a coil hanging plate; 6. a first lead screw assembly; 7. a first induction coil; 8. a second servo motor; 9. a second lead screw assembly; 10. a second induction coil; 11. a gantry support; 12. a conveyor belt assembly; 13. a working platform; 14. a spring reserve tank; 15. a valve spring; 16. a first hanging plate; 17. second hitch plate, etc., but does not exclude the possibility of other terms, which are used merely to describe and explain the nature of the present invention, they are to be construed as being against any additional limitation of the present invention.