Special fixture for heat treatment of high-temperature carburized gear

Abstract

The utility model discloses a special fixture for heat treatment of a high-temperature carburized gear, which belongs to the technical field of fixtures for heat treatment of gears and comprises a plurality of clamping groups, a base and a plurality of clamping plates. Each clamping set comprises a clamping component, a threaded lead screw and two threaded blocks. In one clamping set, the threaded lead screw is in sliding connection with the two threaded blocks, and the two limiting rods are fixedly connected to the upper portions of the two threaded blocks correspondingly. The threaded lead screws of all the clamping sets are arranged on the base in parallel. The driving assembly is connected to the side edge of the base and comprises a driving motor, a driving wheel and one or more driven wheels; the driving wheel and the driven wheel are sequentially connected with the threaded lead screw along the side edge of the base. The driving motor is connected with the driving wheel. According to the special fixture for heat treatment of the high-temperature carburized gears, multiple gear bodies can be clamped at a time, and a user can perform heat treatment on the gears in batches, so that the working efficiency of heat treatment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear heat treatment fixtures, in particular to a special fixture for heat treatment of high-temperature carburized gears. Background Art

[0002] Gears transmit motion and power through continuous meshing when working. They are commonly used transmission accessories in mechanical structures. During the processing of gears, they need to undergo heat treatment to change the surface and internal structure of the metal material. During the heat treatment process, tooling fixtures are required to clamp and fix the gears.

[0003] Application number "CN202321694721.8" describes a fixture specifically designed for high-temperature carburized gear heat treatment. This fixture features a flexible clamping connection between a jacket and a wheel housing, along with a dual-axis motor, threaded rod, slider, and fixed column. This allows for easy left-right adjustment of the jacket position, facilitating quick installation and removal of the gear body. The fixture is user-friendly and effectively improves its structural practicality. However, the aforementioned solution can only clamp one gear at a time, resulting in low heat treatment efficiency.

[0004] For the above problems, relevant technologies do not provide effective solutions. Utility Model Content

[0005] To address problems that may exist in the related art, some embodiments of the present application provide a special fixture for heat treatment of high-temperature carburized gears, comprising a base and a clamping member, the clamping member being movably connected to the base; the clamping member comprising two limiting rods with opposite ends for clamping the gear; the fixture comprising: a plurality of clamping groups located on the upper portion of the base; each clamping group comprising the clamping member, a threaded screw and two threaded blocks; within one clamping group, the threaded screw is slidably connected to the two threaded blocks, and the two limiting rods are respectively fixedly connected to the upper portions of the two threaded blocks; the threaded screws of all clamping groups are arranged in parallel on the base; a drive assembly located on the side of the base comprises a drive motor, a driving wheel and one or more driven wheels; the driving wheel and the driven wheels are sequentially connected to the threaded screw along the side of the base; the drive motor is connected to the driving wheel, and when the drive motor rotates, the driving wheel drives the driven wheel to rotate, and all the threaded screws drive the threaded blocks to move, thereby adjusting the distance between the two limiting rods in each clamping group.

[0006] Furthermore, the clamping member further includes a movable seat and an adjustment plate, the movable seat is fixedly connected to the threaded block, and the limiting rod is fixedly connected to the adjustment plate; the adjustment plate is inserted into the movable seat and detachably connected to the movable seat.

[0007] Furthermore, the adjustment plate is formed with a plurality of adjustment holes A, and the movable seat is formed with adjustment holes B. The adjustment holes A are detachably connected to the adjustment holes B through fixing bolts to adjust the relative position of the adjustment plate and the movable seat.

[0008] Furthermore, a circular limiting plate is connected to the end of the limiting rod, a side of the limiting plate facing away from the limiting rod is connected to a column shaft, and an outer diameter of the limiting plate is larger than the diameters of the column shaft and the limiting rod.

[0009] Furthermore, the column shaft is detachably connected to the limiting plate.

[0010] Furthermore, it also includes a connecting frame, which is an L-shaped rod, one end of which is connected to the driving motor and the other end is connected to the base.

[0011] Furthermore, a moving groove is formed on the top of the base, and at least a portion of the threaded block is embedded in the moving groove and is slidably connected to the moving groove.

[0012] Furthermore, the threaded screw is a bidirectional screw, and one threaded screw is connected to two threaded blocks; the threaded screw includes two threaded surfaces and a smooth surface, the smooth surface is located between the two threaded surfaces, and the two threaded blocks are respectively arranged on the two threaded surfaces.

[0013] Furthermore, one end of the threaded screw away from the driving assembly is rotatably connected to the base through a bearing.

[0014] Furthermore, the driving wheel and the driven wheel are chain-driven.

[0015] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0016] The special fixture for heat treatment of high-temperature carburized gears in this application can clamp multiple gear bodies at a time, and users can heat treat gears in batches, thereby improving the efficiency of heat treatment operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings that constitute part of this application are used to provide a further understanding of this application and make other features, objects and advantages of this application more apparent. The illustrative embodiment drawings of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic structural diagram of a fixture specifically designed for heat treatment of high-temperature carburized gears according to an embodiment of the present application;

[0019] Figure 2This is a schematic cross-sectional view of a base of a fixture specifically designed for heat treatment of high-temperature carburized gears according to an embodiment of the present application;

[0020] Figure 3 For this application Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 4 This is a schematic structural diagram of a special fixture for heat treatment of high-temperature carburized gears according to the present application;

[0022] Description of labels:

[0023] 100, base; 110, movable slot; 120, connecting frame;

[0024] 200, clamping group; 210, clamping member; 211, limiting rod; 2111, limiting plate; 2112, column shaft; 212, movable seat; 2121, adjustment hole B; 213, adjustment plate; 2131, adjustment hole A; 220, threaded rod; 230, threaded block; 240, bearing;

[0025] 300, driving assembly; 310, driving motor; 320, driving wheel; 330, driven wheel. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments 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 in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0027] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, for the purposes of describing the embodiments of the present application herein.

[0028] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to having a specific orientation, or to be constructed and operated in a specific orientation. Moreover, in addition to being used to indicate orientations or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances.

[0029] Reference Figure 1-4 As shown, this embodiment provides a special fixture for heat treatment of high-temperature carburized gears, which has a clamping member 210, a base 100 and a drive assembly 300. The clamping member 210 is movably connected to the base 100. The clamping member 210 includes two limiting rods 211 with opposite ends. The two limiting rods 211 can move closer to or away from each other for clamping the gears.

[0030] The base 100 serves as a supporting member for installing and supporting other components of the fixture for high-temperature carburizing gear heat treatment.

[0031] like Figure 1 、 2 As shown, several clamping groups 200 are located on the upper part of the base 100; each clamping group 200 includes a clamping member 210, a threaded screw 220 and two threaded blocks 230. In a clamping group 200, the threaded screw 220 is slidably connected to the two threaded blocks 230, and two limit rods 211 are respectively fixedly connected to the upper parts of the two threaded blocks 230 and move synchronously with the two threaded blocks 230; all threaded screws 220 are arranged in parallel.

[0032] It is worth emphasizing that the number of “several” in this embodiment is more than two, such as two, three, four or five.

[0033] like Figure 2As shown, the drive assembly 300 is connected to the side of the base 100 and includes a drive motor 310, a driving wheel 320, and one or more driven wheels 330. The driving wheel 320 and the driven wheels 330 are sequentially connected to the threaded rods 220 along the side of the base 100. The drive motor 300 is connected to the driving wheel 320. When the drive motor 310 rotates, the driving wheel 320 drives the driven wheels 330 to rotate, and all the threaded rods 220 drive the threaded blocks 230 to move, thereby adjusting the distance between the two limiting rods 211 in each clamping group 200, thereby clamping or releasing the gears.

[0034] In detail, Figure 2 As shown, when there are multiple driven wheels 330 , the driving wheel 320 is connected to a threaded screw 220 close to the outer edge of the base 100 , and the driven wheel 330 is fixedly connected to the other threaded screws 220 .

[0035] Specifically, a belt drive or chain drive is used between the driving wheel 320 and the driven wheel 330, preferably a chain drive, which is more adaptable to the high temperature environment during gear heat treatment and has higher safety. Since the adjacent groups of clamping groups 200 are generally spaced relatively far apart, if a gear drive is used, it would take up a lot of space and be more expensive to use.

[0036] More specifically, the transmission method between the multiple driven wheels 330 is also belt transmission or chain transmission.

[0037] In this way, the special fixture for heat treatment of high-temperature carburized gears in this application can clamp multiple gear bodies at a time, and users can heat treat gears in batches, thereby improving the efficiency of heat treatment operations.

[0038] As a specific plan, Figure 2 As shown, a movable groove 110 is formed on the top of the base 100, and at least a portion of the threaded block 230 is embedded in the movable groove 110 and is slidingly connected to the movable groove 110. The movable groove 110 is used to limit the circumferential movement of the threaded block 230 and prevent the threaded block 230 from rotating with the threaded rod.

[0039] Specifically, the threaded screw 220 is a bidirectional screw, and one threaded screw 220 is connected to two threaded blocks 230 , which are symmetrically arranged on the surface of the threaded screw 220 .

[0040] Preferably, the threaded screw 220 includes two threaded surfaces and a smooth surface, with the smooth surface located between the two threaded surfaces. The two threaded blocks 230 are disposed on the two threaded surfaces, respectively. This design controls the travel of the threaded blocks 230, preventing excessive movement of the threaded blocks 230 from causing the distance between the limit rods 211 to become too small. This would increase the user's operational burden if the clamping assembly 200 were to need to re-adapt to the gear size.

[0041] Specifically, such as Figure 2 As shown, one end of the threaded screw 220 away from the driving assembly 300 is rotatably connected to the base 100 through a bearing 240 , so that the threaded screw 220 can rotate relative to the base 100 .

[0042] Optional, such as Figure 1 As shown, a connecting frame 120 is also included. The connecting frame 120 is an L-shaped rod, one end of which is connected to the driving motor 310 and the other end is connected to the base 100 for stably supporting the motor.

[0043] In order to adapt to gears with different outer diameters, such as Figure 1 As shown, the clamping member 210 further includes a movable base 212 and an adjustment plate 213. The movable base 212 is fixedly connected to the threaded block 230, and the limiting rod 211 is fixedly connected to the adjustment plate 213. The adjustment plate 213 is inserted into the movable base 212 and is detachably connected to the movable base 212. The user can change the relative position between the adjustment plate 213 and the movable base 212, thereby changing the height of the limiting rod 211.

[0044] Specifically, if Figure 1 As shown, the adjustment plate 213 is formed with a plurality of adjustment A holes 2131 , and the movable seat 212 is formed with adjustment B holes. The adjustment A holes 2131 are detachably connected to the adjustment B holes through fixing bolts to adjust the relative position of the adjustment plate 213 and the movable seat 212 .

[0045] Among them, Figure 3 、 4 As shown, a circular limiting plate 2111 is connected to the end of the limiting rod 211. A cylindrical shaft 2112 is connected to the side of the limiting plate 2111 facing away from the limiting rod 211. The outer diameter of the limiting plate 2111 is larger than the diameter of the cylindrical shaft 2112 and the diameter of the limiting rod 211. The cylindrical shaft 2112 is used to be inserted into the center hole of the gear. The limiting plate 2111 can contact the gear over a larger area, thereby increasing the stability of the limiting rod 211 in clamping the gear.

[0046] Preferably, the column shaft 2112 is detachably connected to the limit plate 2111. For example, the column shaft 2112 is formed with a screw that can be inserted into the limit plate 2111 or the limit plate 2111 and the limit rod 211. In this way, when processing gears with different apertures, the user can replace the column shaft 2112 with different diameters to adapt to the gears, further ensuring the safety of the gear heat treatment operation, and preventing the center hole of the gear from not matching the outer diameter of the column shaft, causing the gear (especially the high-temperature gear after heat treatment) to shake easily and create a safety hazard.

[0047] As a specific solution, the special fixture for high-temperature carburizing gear heat treatment in this embodiment includes five clamping groups 200 and four driven wheels 330. The driven wheels 330 are all arranged along the side of the base 100. When the driving motor 310 drives the active wheel 320 to rotate, it drives the four driven wheels 330 to rotate, and all the threaded rods rotate, so that all the clamping components 210 clamp or loosen the gears.

[0048] In this application, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0049] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A fixture for heat treatment of high-temperature carburized gears, comprising a base and a clamping member, wherein the clamping member is movably connected to the base; the clamping member comprises two limiting rods with opposite ends for clamping the gear; and the fixture is characterized in that: include: A plurality of clamping groups are located on the upper portion of the base; each clamping group includes the clamping member, a threaded screw and two threaded blocks; within one clamping group, the threaded screw is slidably connected to the two threaded blocks, and the two limit rods are respectively fixedly connected to the upper portions of the two threaded blocks; the threaded screws of all clamping groups are arranged in parallel on the base; The driving assembly is connected to the side of the base and includes a driving motor, a driving wheel and one or more driven wheels; the driving wheel and the driven wheel are connected to the threaded screw in sequence along the side of the base; the driving motor is connected to the driving wheel, and when the driving motor rotates, the driving wheel drives the driven wheel to rotate, and all the threaded screws drive the threaded block to move, thereby adjusting the distance between the two limit rods in each clamping group.

2. The fixture for high-temperature carburizing gear heat treatment according to claim 1, characterized in that: The clamping member further comprises a movable seat and an adjustment plate, wherein the movable seat is fixedly connected to the threaded block, and the limiting rod is fixedly connected to the adjustment plate; The adjusting plate is inserted into the moving seat and is detachably connected to the moving seat.

3. The fixture for high-temperature carburizing gear heat treatment according to claim 2, characterized in that: The adjustment plate is formed with a plurality of adjustment holes A, and the movable seat is formed with adjustment holes B. The adjustment holes A are detachably connected to the adjustment holes B through fixing bolts to adjust the relative position of the adjustment plate and the movable seat.

4. The fixture for high-temperature carburizing gear heat treatment according to claim 1, characterized in that: The end of the limiting rod is connected to a circular limiting plate, and the side of the limiting plate facing away from the limiting rod is connected to a column shaft. The outer diameter of the limiting plate is larger than the diameter of the column shaft and the diameter of the limiting rod.

5. The fixture for high-temperature carburizing gear heat treatment according to claim 4, characterized in that: The column shaft is detachably connected to the limiting plate.

6. The fixture for high-temperature carburizing gear heat treatment according to claim 1, characterized in that: It also includes a connecting frame, which is an L-shaped rod, one end of which is connected to the driving motor and the other end is connected to the base.

7. The fixture for high-temperature carburizing gear heat treatment according to claim 1, characterized in that: A moving groove is formed on the top of the base, and at least a portion of the threaded block is embedded in the moving groove and is slidably connected to the moving groove.

8. The fixture for high-temperature carburizing gear heat treatment according to claim 1, characterized in that: The threaded screw is a bidirectional screw, and one threaded screw is connected to two threaded blocks; The threaded screw comprises two threaded surfaces and a smooth surface, the smooth surface is located between the two threaded surfaces, and the two thread blocks are respectively arranged on the two threaded surfaces.

9. The fixture for high-temperature carburizing gear heat treatment according to claim 1, characterized in that: One end of the threaded screw away from the driving assembly is rotatably connected to the base through a bearing.

10. A fixture for high-temperature carburized gear heat treatment according to any one of claims 1 to 9, characterized in that: The driving wheel and the driven wheel are chain-driven.

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