End face shape limiting and demolding mechanism for bearing die pressing quenching machine tool
By designing the end face shape limiting and mold release mechanism in the bearing molding and quenching equipment, and using the cooperation of the oil cylinder and spring, the problem of workpiece deformation during the cooling process of traditional equipment is solved, the stability and accuracy of workpiece dimensions are improved, and the simplification of the simplification of the sizing of the workpiece is achieved. Automatic mold release process.
Patent Information
- Application Number
- CN202411343893.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2024-12-31
AI Technical Summary
Traditional bearing molding and quenching equipment is difficult to control the shape stability of the workpiece during cooling, especially large ferrule parts, which leads to deformation and accuracy not meeting standards, affecting the performance and life.
A end surface shape and mold release mechanism including lower mold, upper mold, movable crossbeam, guide sleeve, guide shaft, spring, round nut, oil cylinder and pressure plate is designed. During the quenching process through the cylinder pressurization and spring return mechanism Pressure and shape limit the end surface of the workpiece to ensure consistency in dimensionality and automatically release the mold after quenching.
It effectively reduces deformation during workpiece cooling, improves the dimensional stability and accuracy of workpieces after quenching, is suitable for high-precision large-sized ferrule parts, and realizes automatic mold release, reducing the difficulty and cost of subsequent processing.
Smart Images
Figure CN119220782A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of heat treatment die pressing and quenching equipment, in particular to an end face shape limiting and demoulding mechanism for a bearing die pressing and quenching machine tool. Background Art
[0002] Bearing die quenching machine is a kind of quenching heat treatment equipment specially used for bearing parts. Through the synergistic effect of the mold and the quenching medium, the quenching heat treatment of the bearing parts is realized to improve their hardness and wear resistance. It is mainly used for the quenching treatment of various bearing rings, rollers and other parts. It can also be used for other small mechanical parts that require precision quenching. Now the bearing die quenching machine is indispensable in the bearing manufacturing process. It can significantly improve the quality and production efficiency of bearing parts. It is one of the important equipment in the modern machinery manufacturing industry.
[0003] In the gear and bearing manufacturing industry, quenching process is an important link to improve the hardness and wear resistance of workpieces. However, traditional quenching methods often cause deformation of workpieces during the cooling process, especially in the processing of large ring-type parts. This deformation problem is particularly prominent. Since large workpieces are subjected to complex thermal stress and phase change stress during quenching, it is very easy to change the geometric shape and size, resulting in substandard precision of the finished product, affecting the performance and life of the product. Existing quenching equipment mostly adopts a simple cooling method, and the support and shape control of the workpiece are insufficient, making it difficult to ensure the shape stability of the workpiece during the quenching process. Especially for large ring-type parts such as wind power bearings, the requirements for high precision and high stability are higher, and traditional equipment is difficult to meet this demand. The deformation of the workpiece not only increases the difficulty and cost of subsequent processing, but also leads to material waste and reduced production efficiency. Summary of the invention
[0004] In view of the deficiencies in the prior art, the present invention provides an end face shape limiting and demoulding mechanism for a bearing die quenching machine tool, which solves the problem that the material is easily deformed due to thermal stress during the quenching process.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an end face limiting and demolding mechanism for a bearing die-casting quenching machine tool, comprising a lower die, an upper die, and a movable crossbeam, a workpiece is arranged between the lower die and the upper die, a guide sleeve is fixedly installed on the movable crossbeam, a guide shaft is arranged inside the guide sleeve, a spring and a round nut are mounted on the upper part of the guide shaft, a pressure plate is connected to the lower part of the guide shaft, an oil cylinder is fixedly installed on the movable crossbeam, and the output end of the oil cylinder is in floating contact with the pressure plate; a pressure column adjustment plate is installed on the upper die, and an upper pressure column is mounted on the pressure column adjustment plate.
[0006] Preferably, the guide sleeve, guide shaft, spring, round nut and oil cylinder are distributed in a circular array with the geometric center of the moving cross beam as the center.
[0007] Preferably, the pressure column adjustment plate, the upper pressure column and the pressure plate are arranged inside the upper mold.
[0008] Working principle: When the workpiece is quenched, the output end of the oil cylinder extends to push the pressure plate downward, and the pressure plate contacts the pressure column and applies pressure to the end face of the workpiece; when the workpiece quenching is completed, the movable crossbeam rises, and the oil cylinder continues to pressurize and the workpiece is demolded; after the movable crossbeam rises into place, the output end of the oil cylinder retracts, and the pressure plate is reset under the action of the spring.
[0009] The present invention provides an end face limiting and demoulding mechanism for a bearing die quenching machine tool.
[0010] Beneficial effects:
[0011] 1. The present invention uses the end face limiting shape and demoulding mechanism to limit the shape of the workpiece end face during the quenching process, which can effectively reduce the end face deformation of the workpiece during the cooling process, ensure the consistency and stability of the size of the workpiece after quenching, and improve the quenching quality of the workpiece. It is suitable for large-scale ring parts with high precision requirements; at the same time, the end face limiting shape and demoulding mechanism can effectively realize the demoulding of the workpiece, which is convenient for the automated matching of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is the structure and material-waiting state diagram of the present invention;
[0013] Figure 2 It is a state diagram of the pressure end surface of the present invention;
[0014] Figure 3 It is a demoulding state diagram of the present invention.
[0015] Among them, 1. lower mold; 2. workpiece; 3. upper mold; 4. pressure column adjustment plate; 5. upper pressure column; 6. pressure plate; 7. guide sleeve; 8. guide shaft; 9. moving crossbeam; 10. spring; 11. round nut; 12. cylinder. DETAILED DESCRIPTION
[0016] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0017] Example:
[0018] Please see attached Figure 1 -Attached Figure 3The embodiment of the present invention provides an end face limiting and demolding mechanism for a bearing die quenching machine tool, comprising a lower mold 1, an upper mold 3, and a movable crossbeam 9. A workpiece 2 is arranged between the lower mold 1 and the upper mold 3. The movable crossbeam 9 is fixedly installed with a guide sleeve 7, and a guide shaft 8 is arranged inside the guide sleeve 7. A spring 10 and a round nut 11 are sleeved on the upper part of the guide shaft 8. A pressure plate 6 is connected to the lower part of the guide shaft 8. The movable crossbeam 9 is fixedly installed with a cylinder 12, and the output end of the cylinder 12 is in floating contact with the pressure plate 6; the upper mold 3 is installed with a pressure column adjustment plate 4, and an upper pressure column 5 is sleeved on the pressure column adjustment plate 4. The guide sleeve 7, guide shaft 8, spring 10, round nut 11, and cylinder 12 are distributed in a circular array with the geometric center of the movable crossbeam 9 as the center of the circle; the pressure column adjustment plate 4, the upper pressure column 5, and the pressure plate 6 are arranged inside the upper mold 3.
[0019] Specifically, when the workpiece 2 is quenched, the output end of the oil cylinder 12 extends to push the pressure plate 6 downward, and the pressure plate 6 contacts the upper pressure column 5 and applies pressure to the end face of the workpiece 2; when the quenching of the workpiece 2 is completed, the movable crossbeam 9 rises, and at the same time, the oil cylinder 12 continues to pressurize and the workpiece 2 is demolded; after the movable crossbeam 9 rises to its position, the output end of the oil cylinder 12 retracts, and the pressure plate 6 is reset under the action of the spring 10. By using the end face shape limiting and demolding mechanism to limit the shape of the end face of the workpiece 2 during the quenching process, the end face deformation of the workpiece 2 during the cooling process can be effectively reduced, the consistency and stability of the size of the workpiece 2 after quenching are ensured, and the quenching quality of the workpiece 2 is improved, which is suitable for large-scale ring-type parts with high precision requirements; at the same time, the end face shape limiting and demolding mechanism can effectively realize the demolding of the workpiece 2, which is convenient for the automated matching of the equipment.
[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An end face limiting and demoulding mechanism for a bearing die quenching machine tool, comprising a lower die (1), an upper die (3), and a movable crossbeam (9), characterized in that: A workpiece (2) is arranged between the lower mold (1) and the upper mold (3); a guide sleeve (7) is fixedly installed on the movable crossbeam (9); a guide shaft (8) is arranged inside the guide sleeve (7); a spring (10) and a round nut (11) are mounted on the upper part of the guide shaft (8); a pressure plate (6) is connected to the lower part of the guide shaft (8); an oil cylinder (12) is fixedly installed on the movable crossbeam (9); an output end of the oil cylinder (12) is in floating contact with the pressure plate (6); a pressure column adjustment plate (4) is installed on the upper mold (3); an upper pressure column (5) is mounted on the pressure column adjustment plate (4).
2. The end face limiting and demoulding mechanism for a bearing die quenching machine tool according to claim 1, characterized in that: The guide sleeve (7), guide shaft (8), spring (10), round nut (11), and oil cylinder (12) are distributed in a circular array with the geometric center of the moving cross beam (9) as the center of the circle.
3. The end face limiting and demoulding mechanism for a bearing die quenching machine tool according to claim 1, characterized in that: The pressure column adjustment plate (4), the upper pressure column (5), and the pressure plate (6) are arranged inside the upper mold (3).