Quenching machine tool for crankshaft machining
By designing two machining heads of different diameters and a height adjustment device for the support rod on the quenching machine tool, the problem that existing quenching machine tools cannot efficiently process parts of different diameters was solved, and efficient and stable crankshaft machining was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NEIJIANG JINHONG CRANKSHAFT CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-28
AI Technical Summary
Existing quenching machine tools are usually single-station and cannot efficiently process parts with different diameters, such as crankshaft shafts and gears, resulting in low processing efficiency.
A crankshaft quenching machine tool was designed, which has two machining heads with different diameters. The stability of the machining platform is ensured by a height adjustment and fixing device for the support movable rod, enabling simultaneous machining of parts with different diameters.
It enables the simultaneous processing of parts with different diameters, improving processing efficiency and stability, and meeting the diverse needs of crankshaft processing.
Smart Images

Figure CN224172805U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of crankshaft machining technology, and more specifically, to a quenching machine tool for crankshaft machining. Background Technology
[0002] Quenching machine tools, as the name suggests, generally refer to specialized machine tool equipment that uses induction heating power for quenching processes. They offer advantages such as high precision, high reliability, and time and labor savings. They mainly consist of a bed, slide table, clamping and rotating mechanism, cooling system, quenching fluid circulation system, and electrical control system. Quenching machine tools are generally single-station (double-station quenching machine tools can be used for small-diameter workpieces). Structurally, quenching machine tools are broadly classified into vertical and horizontal types. Users can select the appropriate quenching machine tool based on the quenching process. For special parts or special processes, dedicated quenching machine tools can be designed and manufactured according to the heating process requirements.
[0003] Most existing quenching machine tools are single-station, which means they can only process parts with a certain diameter. However, crankshafts often need to be processed to achieve efficient heat treatment by processing workpieces with different diameters, such as shafts and gears. Therefore, dual-station quenching machine tools are particularly important. Utility Model Content
[0004] The purpose of this utility model is to provide a quenching machine tool for crankshaft processing, which has two processing heads with different diameters, so that parts with different diameters can be processed simultaneously, and the support movable rod can be quickly adjusted and locked to maintain the stability of the processing platform during the processing of the machine tool.
[0005] The embodiments of this utility model are achieved through the following technical solutions:
[0006] A quenching machine tool for crankshaft machining includes a machining base and a machining platform mounted on the machining base. A plurality of support rods are provided between the machining base and the machining platform.
[0007] The processing platform is provided with a processing seat, which includes at least two processing heads, and the diameters of the at least two processing heads are different.
[0008] A fixing device is provided between the bottom of the supporting movable rod and the processing base. The fixing device includes a fixing ring with a fixing seat above the fixing seat. The fixing seat and the fixing ring are connected by multiple supporting columns. The fixing ring is sleeved on the outside of the supporting movable rod and can limit and fix supporting movable rods with different outer diameters.
[0009] Furthermore, the machining base is arc-shaped, and the machining head is positioned at the high point of the arc-shaped segment of the machining base.
[0010] Furthermore, the processing platform is provided in pairs, with the pair of processing platforms arranged side by side and one after the other, and the processing seat is located on the top of one of the processing platforms;
[0011] A plurality of fixing holes are provided on the supporting movable rod at the bottom of one of the processing platforms, and a plurality of positioning rods are provided on the supporting movable rod at the bottom of another processing platform along the horizontal direction. One positioning rod is arranged opposite to one of the fixing holes, and the positioning rod can be inserted into the fixing hole.
[0012] Furthermore, the fixing ring includes a first half-ring and a second half-ring, one end of the first half-ring and the second half-ring are hinged to each other, and the other end is connected by a fixing shaft; and each of the first half-ring and the second half-ring is provided with a plurality of positioning screws, the positioning screws passing through the outside of the first half-ring and the second half-ring and extending into the inside of the first half-ring and the second half-ring.
[0013] Furthermore, the outer surfaces of the first and second semi-rings are provided with a plurality of positioning sleeves, the inner surfaces of the positioning sleeves are provided with internal threads, and a positioning screw passes through a positioning sleeve and extends into the interior of the first and second semi-rings.
[0014] Furthermore, the bottom of both the first and second semi-rings is provided with a plurality of the aforementioned support columns, the bottom of which is connected to the fixed base.
[0015] Furthermore, the top end of the support rod passes through the top of the processing platform and is fixed by a fixing nut.
[0016] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:
[0017] This invention features two processing heads with different diameters, enabling simultaneous processing of parts of varying diameters. More importantly, the height difference between the processing base and the processing platform can be adjusted by changing the height of the supporting movable rod. Specifically, the top of the supporting movable rod penetrates the processing platform and is fixed with bolts. Furthermore, the two supporting movable rods can be supported and limited by a horizontal through-hole, maintaining their stability. To further ensure stability, a fixing seat is provided at the bottom of the supporting movable rod, stabilizing its base. A fixing ring is also provided on the fixing seat, providing limiting support to the periphery of the supporting movable rod, thus enhancing its overall stability. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A front view of a crankshaft machining quenching machine tool provided in an embodiment of this utility model;
[0020] Figure 2 A top view of a crankshaft machining quenching machine tool provided in an embodiment of this utility model;
[0021] Figure 3 A schematic diagram of the structure of the fixing ring provided in an embodiment of this utility model;
[0022] Figure 4 This is a structural schematic diagram of a support rod provided in an embodiment of the present utility model.
[0023] Icons: 1-Machining head, 2-Machining base, 3-Fixing screw, 4-Machining platform, 5-Supporting movable rod, 51-Fixing hole, 52-Positioning rod, 6-Fixing device, 61-Fixing base, 62-Fixing ring, 63-Supporting column, 64-Positioning sleeve, 65-Positioning screw, 7-Machining base. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0025] Example 1
[0026] A quenching machine tool for crankshaft machining includes a machining base 7 and a machining platform 4 disposed on the machining base 7. A plurality of supporting movable rods 5 are disposed between the machining base 7 and the machining platform 4. Specifically, the supporting movable rods 5 can be telescopic rods or lead screws.
[0027] The processing platform 4 is provided with a processing seat 2, which includes at least two processing heads 1, and the diameters of the at least two processing heads 1 are different.
[0028] A fixing device 6 is provided between the bottom of the supporting movable rod 5 and the processing base 7. The fixing device 6 includes a fixing seat 61 and a fixing ring 62 disposed above the fixing seat 61. The fixing seat 61 is disposed on the processing base 7, and the fixing seat 61 and the fixing ring 62 are connected by multiple supporting columns 63. The fixing ring 62 is sleeved on the outside of the supporting movable rod 5 and can limit and fix the supporting movable rod 5 with different outer diameters.
[0029] Working Principle: In use, this invention allows for the production of parts of different diameters by placing the workpieces into two processing heads 1 of different diameters. The specific processing method is a mature existing technology and will not be elaborated upon here. The key feature of this invention lies in the adjustment of the machine tool, specifically the adjustment and fixing of the supporting movable rod 5. The supporting movable rod 5 can be quickly adjusted and locked to maintain the stability of the processing platform 4 during machining. The height distance between the processing base 7 and the processing platform 4 can be adjusted by adjusting the height of the supporting movable rod 5. Specifically, the top of the supporting movable rod 5 passes through the machining head. Platform 4 can be fixed by fixing screws 3. In addition, the two supporting movable rods 5 can be supported and limited by the supporting movable rods 5 passing through the fixing holes 51 laterally, so as to maintain the fixed stability of the supporting movable rods 5. In order to maintain the fixed stability of the supporting movable rods 5, this utility model provides a fixing seat 61 at the bottom of the supporting movable rods 5, thereby keeping the bottom of the supporting movable rods 5 stable. A fixing ring 62 is provided on the fixing seat 61, and the fixing ring 62 is used to limit and support the periphery of the supporting movable rods 5, thereby making the overall stability of the supporting movable rods 5 better.
[0030] In this embodiment, the processing base 2 is arranged in an arc shape, and the processing head 1 is located at the high point of the arc segment of the processing base 2.
[0031] In this embodiment, a pair of processing platforms 4 are provided, with the pair of processing platforms 4 arranged side by side, and the processing seat 2 is located on the top of one of the processing platforms;
[0032] A plurality of fixing holes 51 are provided on the supporting movable rod 5 at the bottom of one of the processing platforms 4, and a plurality of positioning rods 52 are provided on the supporting movable rod 5 at the bottom of the other processing platform 4 along the transverse direction, and at least one positioning rod 52 is provided in the movable section of the supporting movable rod 5; one positioning rod 52 is arranged opposite to one fixing hole 51, and the positioning rod 52 can be inserted into the fixing hole 51; in this way, the positioning rod 52 can be used to limit and fix the supporting movable rod 5, and maintain the stability of the supporting movable rod 5.
[0033] In this embodiment, the fixing ring 62 includes a first half-ring 621 and a second half-ring 622. One end of the first half-ring 621 and the second half-ring 622 are movably connected (e.g., by hinge or by rotating shaft), and the other end is an open end that can be connected by a fixed shaft, similar to a clamp. Each of the first half-ring 621 and the second half-ring 622 is provided with several positioning screws 65. The positioning screws 65 pass through the outer side of the first half-ring 621 and the second half-ring 622 and extend into the interior of the first half-ring 621 and the second half-ring 622. By adjusting the inward extension length of the positioning screws 65, they abut against the outer surface of the supporting movable rod 5, thereby using multiple positioning screws 65 to clamp and stabilize the supporting movable rod 5. Thus, for supporting movable rods 5 with different outer diameters, the different inward extension lengths of the positioning screws can be used to clamp the supporting movable rod 5, thereby satisfying the positioning stability requirements for different supporting movable rods 5.
[0034] In this embodiment, the outer surfaces of the first half-ring 621 and the second half-ring 622 are provided with a plurality of positioning sleeves 64, and the inner surfaces of the positioning sleeves 64 are provided with internal threads. A positioning screw 65 passes through a positioning sleeve 64 and extends into the interior of the first half-ring 621 and the second half-ring 622. In this way, the external thread of the positioning screw 65 and the internal thread of the positioning sleeve 64 can be used to maintain the adjustment stability and speed of the positioning screw 65.
[0035] In this embodiment, the bottom of the first half-ring 621 and the second half-ring 622 are provided with a plurality of support columns 63, which are connected to the fixed base 61, thereby using the support columns 63 to maintain the stability of the fixed ring 62.
[0036] In this embodiment, the top end of the support rod 5 passes through the top of the processing platform 4 and is fixed by the fixing nut 3, which makes the support rod 5 more stable and makes the machine tool more stable and efficient during processing.
[0037] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A quenching machine tool for crankshaft machining, characterized in that, It includes a processing base and a processing platform mounted on the processing base, with several supporting movable rods provided between the processing base and the processing platform. The processing platform is provided with a processing seat, which includes at least two processing heads, and the diameters of the at least two processing heads are different. A fixing device is provided between the bottom of the supporting movable rod and the processing base. The fixing device includes a fixing ring with a fixing seat above the fixing seat. The fixing seat and the fixing ring are connected by multiple supporting columns. The fixing ring is sleeved on the outside of the supporting movable rod and can limit and fix supporting movable rods with different outer diameters.
2. The quenching machine tool for crankshaft machining according to claim 1, characterized in that, The machining base is arranged in an arc shape, and the machining head is located at the high point of the arc segment of the machining base.
3. The quenching machine tool for crankshaft machining according to claim 1, characterized in that, The processing platform is provided in a pair, the pair of processing platforms are arranged side by side and one after the other, and the processing seat is located on the top of one of the processing platforms; A plurality of fixing holes are provided on the supporting movable rod at the bottom of one of the processing platforms, and a plurality of positioning rods are provided on the supporting movable rod at the bottom of another processing platform along the horizontal direction. One positioning rod is arranged opposite to one of the fixing holes, and the positioning rod can be inserted into the fixing hole.
4. The quenching machine tool for crankshaft machining according to claim 1, characterized in that, The fixing ring includes a first half-ring and a second half-ring, with one end of the first half-ring and the second half-ring hinged to each other and the other end connected by a fixed shaft; and each of the first half-ring and the second half-ring is provided with a plurality of positioning screws, the positioning screws passing through the outside of the first half-ring and the second half-ring and extending into the inside of the first half-ring and the second half-ring.
5. The quenching machine tool for crankshaft machining according to claim 4, characterized in that, The outer surfaces of the first and second half-rings are provided with a plurality of positioning sleeves, the inner surfaces of the positioning sleeves are provided with internal threads, and a positioning screw passes through a positioning sleeve and extends into the interior of the first and second half-rings.
6. The quenching machine tool for crankshaft machining according to claim 4, characterized in that, The bottom of both the first and second half-rings is provided with a plurality of the aforementioned support columns, the bottom of which is connected to the fixed base.
7. The quenching machine tool for crankshaft machining according to claim 1, characterized in that, The top of the support rod passes through the top of the processing platform and is fixed by a fixing nut.