Cylindrical part quenching tool

Abstract

The utility model relates to a kind of cylindrical part quenching tool, including base, lower end limiting assembly and upper end limiting assembly, the lower end limiting assembly is installed on base, the upper end limiting assembly is located above lower end limiting assembly, the upper end limiting assembly includes several adjustable upper end limiting holes, the lower end limiting assembly includes several adjustable lower end limiting holes, several the upper end limiting hole and several the lower end limiting hole one-to-one correspondence, the lower end limiting hole is composed of two symmetric distribution lower end limiting plates, the upper end limiting hole is composed of two symmetric distribution upper end limiting plates, the moving direction of the lower end limiting plate is perpendicular to the moving direction of upper end limiting plate.The main purpose of the utility model is to provide a kind of clamping reliable stability, use flexible, can be suitable for different sizes of cylindrical part's quenching tool.

Description

Technical Field

[0001] This utility model relates to a quenching fixture, and more particularly to a quenching fixture for cylindrical parts. Background Technology

[0002] In machining processes, quenching is a commonly used heat treatment process that can effectively improve the mechanical properties of workpieces, such as rigidity, hardness, wear resistance, fatigue strength, and toughness. When placing a workpiece into a quenching device, it is often necessary to first fix the workpiece to the corresponding tooling fixture.

[0003] In the prior art, Chinese patent CN208762555U discloses a quenching fixture for automotive transmission gear shafts, including an upper plate. Automotive transmission gear shafts are evenly inserted into the left and right sides of the upper plate. A first stop plate is inserted through the upper part of the automotive transmission gear shaft, and a second stop plate is inserted through the lower part of the automotive transmission gear shaft. Support columns are inserted into the four corners of the upper plate, and a base plate is inserted into the bottom of the support columns. The base plate includes a first clamping plate, and a second clamping plate is clamped to the left side of the first clamping plate. The device is equipped with multiple sets of latches and latching seats. The first clamping plate, the second clamping plate, and the third clamping plate are fixed and clamped by the latches and latching seats. A positioning hole is formed between the two sets of clamping plates to fix the automotive transmission gear shaft. This technical solution is easy to disassemble, but it cannot be applied to gear shafts of different sizes, so further improvement is still needed. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a quenching fixture that is reliable and stable in clamping, flexible in use, and applicable to cylindrical parts of different sizes.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] A quenching fixture for cylindrical parts includes a base, a lower limiting component, and an upper limiting component. The lower limiting component is mounted on the base, and the upper limiting component is located above the lower limiting component. The upper limiting component includes a plurality of adjustable upper limiting holes, and the lower limiting component includes a plurality of adjustable lower limiting holes. The plurality of upper limiting holes correspond one-to-one with the plurality of lower limiting holes. Each lower limiting hole is composed of two symmetrically distributed lower limiting plates, and each upper limiting hole is composed of two symmetrically distributed upper limiting plates. The moving direction of the lower limiting plates is perpendicular to the moving direction of the upper limiting plates.

[0007] Furthermore, both ends of the lower limiting plate are detachably connected to the base via a lower cover plate.

[0008] Furthermore, the two ends of the lower limiting plate are respectively engaged with the meshing grooves on the limiting block through meshing teeth. The limiting block is fixed on the base. The lower end cover plate presses against the lower limiting plate and the limiting block and is connected to the base through a detachable connector.

[0009] Furthermore, the lower limiting plate includes a lower base plate and a plurality of lower arc-shaped plates, the plurality of lower arc-shaped plates being evenly distributed at intervals on the lower base plate.

[0010] Furthermore, the base is provided with a support assembly, and connecting columns are fixedly provided on the support assembly at both ends corresponding to the upper limiting plate. The end of the upper limiting plate is detachably connected to the connecting columns through an upper cover plate.

[0011] Furthermore, the upper surface of the connecting column is evenly distributed with meshing grooves along its own length direction, and the bottom surface of the upper limiting plate is evenly distributed with meshing teeth. The upper limiting plate is connected to the meshing grooves on the connecting column through the meshing teeth. The upper cover plate is pressed against the end of the upper limiting plate and connected to the connecting column through a detachable connector.

[0012] Furthermore, the upper limiting plate includes an upper base plate and a plurality of upper arc-shaped plates, the plurality of upper arc-shaped plates being evenly distributed at intervals on the upper base plate.

[0013] Furthermore, the lower end limiting plate has a protruding locking block at its end, and the lower end cover plate has a corresponding matching limiting groove. When the lower end cover plate presses against the lower end limiting plate, the locking block and the limiting groove engage.

[0014] Furthermore, the detachable connector uses bolts.

[0015] Furthermore, the support component has a protrusion on one side and a matching recess on the other side.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: In this utility model, both the lower end limiting component and the upper end limiting component are designed with adjustable dimensions to accommodate cylindrical parts of different sizes. The adjustment method is flexible and convenient, with high precision, and the limiting effect on cylindrical parts is reliable and stable. At the same time, the quenching fixture is designed as an assemblable structure, which can be quickly assembled with fixtures of the same structure according to needs, making it more practical. Attached Figure Description

[0017] Figure 1 This is a perspective view of a quenching fixture for cylindrical parts according to the present invention.

[0018] Figure 2 This is a schematic diagram showing the disassembled structure of a quenching fixture for cylindrical parts according to the present invention.

[0019] Figure 3 This is a front view of a quenching fixture for cylindrical parts according to this utility model;

[0020] Figure 4 This is a top view of a cylindrical part quenching fixture according to the present invention;

[0021] Figure 5 for Figure 3 A schematic diagram of the cross-sectional structure cut along the AA direction;

[0022] Figure 6 This is a schematic diagram showing the states in which cylindrical parts of different diameters are clamped in this utility model.

[0023] The components include: 1. Base; 11. Limiting block; 12. Through hole; 2. Lower limiting plate; 21. Lower base plate; 211. Locking block; 22. Lower arc plate; 3. Lower cover plate; 31. Limiting groove; 4. Support column; 41. Protrusion; 42. Recess; 5. Connecting column; 6. Upper limiting plate; 61. Upper base plate; 62. Upper arc plate; 7. Upper cover plate; 8. Bolt. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] It should be noted that in the description of the technical solution of this utility model, some directional terms used to clearly describe the technical features of this utility model, such as "front", "rear", "upper", "lower", "top", "bottom", "inner", and "outer", are all in accordance with the orientation of the accompanying drawings of this utility model.

[0026] Example

[0027] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment of a cylindrical part quenching fixture includes a base 1, a lower limiting component, and an upper limiting component. The lower limiting component is mounted on the base 1, and the upper limiting component is located above the lower limiting component. The upper limiting component includes several adjustable upper limiting holes, and the lower limiting component includes several adjustable lower limiting holes. The upper and lower limiting holes are distributed in a one-to-one correspondence, meaning that the central axis of the upper limiting hole coincides with the central axis of the corresponding lower limiting hole. The lower limiting hole is composed of two symmetrically distributed lower limiting plates 2, and the upper limiting hole is composed of two symmetrically distributed upper limiting plates 6. The moving direction of the lower limiting plate 2 is perpendicular to the moving direction of the upper limiting plate 6.

[0028] In this embodiment, the lower limiting plate 2 includes an integrally formed lower base plate 21 and multiple lower arc-shaped plates 22, which are evenly distributed along the length of the lower base plate 21. The space between two oppositely distributed lower arc-shaped plates 22 on two oppositely distributed lower limiting plates 2 is the lower limiting hole. When two oppositely distributed lower limiting plates 2 move closer or further apart, the size of the corresponding lower limiting hole on them also decreases or increases accordingly. The two ends of the lower limiting plate 2 are detachably connected to the base 1 by a lower cover plate 3. Specifically, the two ends of the lower limiting plate 2 engage with the engagement groove on the limiting block 11 through engagement teeth. The limiting block 11 is fixed to the base 1, and the engagement groove on the limiting block 11 is evenly distributed along its own length. The lower cover plate 3 is pressed and fixed above the lower limiting plate 2 and the limiting block 11 and is connected to the base 1 by a detachable connector. With this design, the two ends of the lower limiting plate 2 abut against the limiting block 11, thereby limiting the degree of freedom of the lower limiting plate 2 in its own length direction; the two ends of the lower limiting plate 2 engage with the limiting block 11, thereby limiting the degree of freedom of the lower limiting plate 2 in the length direction of the limiting block 11; the lower end cover plate 3 presses against and fixes the lower limiting plate 2, thereby limiting the degree of freedom of the lower limiting plate 2 in the height direction (see reference). Figure 3 This means that the position of the lower limiting plate 2 is fixed.

[0029] When it is necessary to adjust the size of the lower limiting hole, first remove the lower cover plate 3, and then you can freely move the position of the lower limiting plate 2. After the position is determined, engage the two ends of the lower limiting plate 2 with the corresponding limiting blocks 11, and then press the lower cover plate 3 against the lower limiting plate 2 and fix it with the detachable connector, thus realizing the adjustment of the size of the lower limiting hole.

[0030] To further improve the connection stability between the lower limiting plate 2 and the lower cover plate 3, this embodiment provides a locking block 211 protruding from the end of the lower limiting plate 2, and a corresponding limiting groove 31 is provided on the lower cover plate 3, extending along the length of the lower cover plate 3. When the lower cover plate 3 presses against the lower limiting plate 2, the locking block 211 engages with the limiting groove 31.

[0031] In this embodiment, a support assembly is provided on the base 1. Connecting posts 5 are fixedly provided on the support assembly at both ends corresponding to the upper limiting plate 6. The ends of the upper limiting plate 6 are detachably connected to the connecting posts 5 via an upper cover plate 7. Specifically, the support assembly includes four support posts 4 fixedly connected to the corners of the base 1, and the two ends of the connecting posts 5 are fixedly connected to the support posts 4. The upper surface of the connecting posts 5 has evenly distributed meshing grooves along its length, and the bottom surface of the end of the upper limiting plate 6 has evenly distributed meshing teeth. The end of the upper limiting plate 6 overlaps the connecting posts 5. At the same time, the bottom surface of the end of the upper limiting plate 6 meshes with the meshing grooves on the connecting posts 5 through the meshing teeth. The upper cover plate 7 presses against the end of the upper limiting plate 6 and is connected to the connecting posts 5 via a detachable connector. This structural design limits the degree of freedom of the upper limiting plate 6 in the length direction of the connecting column 5 through the meshing connection between the upper limiting plate 6 and the connecting column 5; the upper limiting plate 6 is fixed by the upper cover plate 7, limiting the degree of freedom of the upper limiting plate 6 in the height direction; as for the structure that limits the degree of freedom of the upper limiting plate 6 in the length direction itself, this embodiment uses the same structure as the aforementioned locking block 211 and limiting groove 31 for limiting (not shown in the figure), and will not be repeated here. By restricting the degree of freedom of the upper limiting plate 6 in the three spatial coordinate axes, the position of the upper limiting plate 6 is fixed.

[0032] In this embodiment, the upper limiting plate 6 includes an integrally formed upper base plate 61 and multiple upper arc-shaped plates 62, which are evenly distributed along the length of the upper base plate 61. The space between two oppositely distributed upper arc-shaped plates 62 on two oppositely distributed upper limiting plates 6 is the upper limiting hole. When two oppositely distributed upper limiting plates 6 move closer or further apart, the size of the corresponding upper limiting hole on them also decreases or increases accordingly.

[0033] When it is necessary to adjust the size of the upper limiting hole, first remove the upper cover plate 7, and then you can freely move the position of the upper limiting plate 6. After the position of the upper limiting plate 6 is determined, engage the two ends of the upper limiting plate 6 with the corresponding connecting post 5, and then press the upper cover plate 7 against the upper limiting plate 6 and fix it with the detachable connector, thus realizing the adjustment of the size of the upper limiting hole.

[0034] In this embodiment, the upper arc plate 62 is used to abut against the outer wall of the cylindrical part to be quenched, and the lower arc plate 22 is used to abut against the inner wall of the cylindrical part to be quenched. The diameter of the upper arc plate 62 is larger than the diameter of the lower arc plate 22.

[0035] In this embodiment, all detachable connectors are made of bolts. Bolt connections are simple, reliable, inexpensive, and easy to disassemble.

[0036] In addition, in this embodiment, two of the four support columns 4 on the same side are provided with protrusions 41, and two of the support columns 4 on the other side are provided with recesses 42 that match the protrusions 41. When multiple quenching fixtures are placed together, the protrusions 41 or recesses 42 on the two support columns 4 on the same side of the quenching fixtures cooperate and engage with the recesses 42 or protrusions 41 on the two support columns 4 on the same side of the adjacent quenching fixtures. At the same time, the protrusions 41 and recesses 42 are respectively provided with corresponding through holes. After the bolts pass through the through holes on the protrusions 41 and recesses 42 that are engaged together, they are tightened with nuts, thereby achieving the connection and fixation of the two engaged support columns 4, and thus the connection and fixation of the two quenching fixtures. With this structural design, multiple quenching fixtures can be assembled together and fastened together with bolts to form an integral structure, which is convenient for quenching in quenching equipment and for transporting them on transfer fixtures before or after quenching.

[0037] To improve quenching efficiency and effect, the base 1 in this embodiment has through holes 12 at the positions corresponding to the lower limiting holes. The number of through holes 12 is the same as the number of lower limiting holes, and their positions correspond one-to-one. The design of the through holes 12 facilitates the flow of gas within the quenching fixture and the cylindrical part, thereby promoting more thorough quenching of the cylindrical part.

[0038] In use, the size of the lower limiting hole is adjusted adaptively according to the cylindrical parts to be clamped. After adjustment, multiple cylindrical parts to be quenched are placed on the outside of the corresponding lower limiting hole. At this time, the two relatively distributed lower arc-shaped plates 22 corresponding to the lower limiting hole abut against the inner wall of the cylindrical part. It should be noted that the lower arc-shaped plate 22 is not completely fitted with the cylindrical part, but exhibits different contact states according to the diameter of the clamped cylindrical part.

[0039] like Figure 6 As shown, to accommodate cylindrical parts of different diameters, when clamping small-diameter cylindrical parts, the clamping mechanism only contacts the lower arc-shaped plate 22 in a localized area, thus achieving basic support and limiting functions. When clamping large-diameter cylindrical parts, the lower arc-shaped plate 22 provides a larger contact support area, further enhancing the limiting effect. Through this structural design, the clamping mechanism possesses good dimensional adaptability, effectively limiting cylindrical parts of different specifications, thus improving versatility and structural stability.

[0040] Then move the upper limiting plate 6 so that the upper arc plate 62 on the upper limiting plate 6 presses against the outer wall of the corresponding cylindrical part. Then fix the position of the upper limiting plate 6 to achieve the limiting of the upper end of the cylindrical part. At this time, the clamping of the cylindrical part is completed. If multiple quenching fixtures need to be placed into the quenching equipment at the same time, the multiple clamped quenching fixtures can be clamped together and fastened with bolts to form a whole fixture, which is convenient for transportation.

[0041] This utility model discloses a quenching fixture for cylindrical parts, in which both the lower and upper limiting components are designed with adjustable dimensions to accommodate cylindrical parts of different sizes. The adjustment method is flexible, convenient, and highly accurate, and the limiting effect on cylindrical parts is reliable and stable. At the same time, the quenching fixture is designed as an assemblable structure, which can be quickly assembled with fixtures of the same structure according to needs, thus improving its practicality.

[0042] For those skilled in the art, various other corresponding changes and modifications can be made based on the technical solutions and concepts described above, and all such changes and modifications should fall within the protection scope of the claims of this utility model.

Claims

1. A quenching fixture for cylindrical parts, characterized in that: The device includes a base (1), a lower limiting component, and an upper limiting component. The lower limiting component is mounted on the base (1), and the upper limiting component is located above the lower limiting component. The upper limiting component includes several adjustable upper limiting holes, and the lower limiting component includes several adjustable lower limiting holes. The several upper limiting holes correspond one-to-one with the several lower limiting holes. The lower limiting hole is composed of two symmetrically distributed lower limiting plates (2), and the upper limiting hole is composed of two symmetrically distributed upper limiting plates (6). The moving direction of the lower limiting plate (2) is perpendicular to the moving direction of the upper limiting plate (6).

2. The quenching fixture for cylindrical parts according to claim 1, characterized in that: The two ends of the lower limiting plate (2) are detachably connected to the base (1) via the lower cover plate (3).

3. The quenching fixture for cylindrical parts according to claim 2, characterized in that: The two ends of the lower limiting plate (2) are respectively engaged with the meshing groove on the limiting block (11) through meshing teeth. The limiting block (11) is fixed on the base (1). The lower cover plate (3) presses against the lower limiting plate (2) and the limiting block (11) and is connected to the base (1) through a detachable connector.

4. The quenching fixture for cylindrical parts according to claim 3, characterized in that: The lower limiting plate (2) includes a lower base plate (21) and a plurality of lower arc plates (22), which are evenly distributed on the lower base plate (21).

5. The quenching fixture for cylindrical parts according to claim 4, characterized in that: The base (1) is provided with a support component, and the support component is fixed with connecting columns (5) at both ends corresponding to the upper limit plate (6). The end of the upper limit plate (6) is detachably connected to the connecting column (5) through the upper cover plate (7).

6. The quenching fixture for cylindrical parts according to claim 5, characterized in that: The upper surface of the connecting column (5) is evenly distributed with meshing grooves along its own length direction, and the bottom surface of the upper limiting plate (6) is evenly distributed with meshing teeth. The upper limiting plate (6) is connected to the meshing grooves on the connecting column (5) through the meshing teeth. The upper cover plate (7) is pressed against the end of the upper limiting plate (6) and connected to the connecting column (5) through a detachable connector.

7. The quenching fixture for cylindrical parts according to claim 6, characterized in that: The upper limiting plate (6) includes an upper base plate (61) and a plurality of upper arc plates (62), and the plurality of upper arc plates (62) are evenly distributed on the upper base plate (61).

8. The quenching fixture for cylindrical parts according to claim 4, characterized in that: The lower end limiting plate (2) has a protruding locking block (211) at its end, and the lower end cover plate (3) has a corresponding matching limiting groove (31). When the lower end cover plate (3) presses against the lower end limiting plate (2), the locking block (211) and the limiting groove (31) engage and lock together.

9. A quenching fixture for cylindrical parts according to claim 3 or 6, characterized in that: The detachable connector uses bolts.

10. A quenching fixture for cylindrical parts according to claim 5, characterized in that: The support assembly has a protrusion (41) on one side and a matching recess (42) on the other side.

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