Fixing device for heat treatment of gear blank

Abstract

The utility model belongs to the technical field of gear blank fixing devices, and particularly relates to a fixing device for heat treatment of a gear blank. Comprising a workbench, the workbench is provided with a same-direction moving mechanism, the same-direction moving mechanism is provided with a height adjusting mechanism, and the height adjusting mechanism is provided with a gear fixing mechanism. Through structural improvement and optimization, the supporting rods on the two sides can be conveniently and simultaneously controlled to move in the same direction through the same-direction moving mechanism, the gear fixing effect is better and more efficient, and operation is easier; through the height adjusting mechanism, the height of the moving block can be adjusted, and the requirement for fixing gears of different sizes is met; and through the arrangement of a moving rod, gear shafts with different diameters can be fixedly supported, and the stability during machining is further improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of gear blank fixing devices, specifically relating to a fixing device for heat treatment of gear blanks. Background Technology

[0002] Heat treatment of gear blanks is a crucial process for improving gear performance and ensuring gear quality. Its purpose is to improve the microstructure of the gear blank, eliminate internal stress, and enhance the strength and toughness of the material, laying the foundation for subsequent machining and final performance. During heat treatment, tooling fixtures must be used to clamp and fix the gears.

[0003] As disclosed in the publication (announcement) number CN220724272U, this utility model discloses a fixing device for heat treatment of gear blanks, including a base, a load-bearing block fixedly welded to the lower end face of the base, a sliding groove provided inside the base, a slider slidably sleeved inside the sliding groove, a screw connected inside the slider by a thread, a washer sleeved on the outside of the screw, and a clamping seat fixedly welded to the upper end of the slider. This fixing device for heat treatment of gear blanks, by moving the clamping seat laterally, drives the slider and screw to move laterally, which facilitates the adjustment of the distance between the two pairs of clamping seats, so as to install and process gears of different thicknesses and expand the range of applications. By rotating and tightening the screw, the washer is driven to press the base, which facilitates the fixing of the slider and clamping seat position for heat treatment of the gear. The design of the sliding groove and the slider can guide the movement of the clamping seat and prevent lateral deviation from affecting the normal installation of the gear. By providing an installation groove inside the support sleeve, it is convenient to quickly disassemble and assemble the gear shaft and gear, greatly improving work efficiency.

[0004] Analysis revealed the following problems with this solution: it can only process gears of a specific diameter, and it will not be suitable for processing larger gears; in addition, the diameter of the gear shaft is not fixed, which will cause mismatches between different gear shafts and result in poor processing accuracy; to address these issues, the solution needs to be optimized and improved. Utility Model Content

[0005] To address the problems existing in the background art, this utility model provides a fixing device for heat treatment of gear blanks; it has the ability to process gears of different sizes, and at the same time, it provides a better fixing effect on gears.

[0006] This utility model provides a fixing device for heat treatment of gear blanks, including a worktable. The worktable is provided with a unidirectional moving mechanism, a height adjusting mechanism, and a gear fixing mechanism. The gear fixing mechanism includes a moving block, a groove on the moving block, a bearing fixedly installed in the groove, a protrusion fixedly installed on the inner ring of the bearing, a fixing sleeve fixedly installed on the moving block corresponding to the groove, an arc-shaped adjusting plate slidably connected to the fixing sleeve, a bolt threadedly connected to the arc-shaped adjusting plate, a fixing plate fixedly installed on the moving block corresponding to the arc-shaped adjusting plate, moving rods symmetrically inserted and connected to the fixing sleeve, a sensing rod fixedly installed on the moving rod, an arc-shaped through hole on the arc-shaped adjusting plate corresponding to the sensing rod, and the sensing rod slidably connected to the arc-shaped through hole.

[0007] Furthermore, the co-directional moving mechanism includes a second groove on the worktable, a double-threaded screw is rotatably connected in the second groove, a support rod is threadedly connected to the double-threaded screw, the support rod is slidably connected to the upper surface of the worktable, and a rotating handle is rotatably connected to one side of the worktable, the rotating handle is fixedly connected to the double-threaded screw.

[0008] Furthermore, the height adjustment mechanism includes several positioning holes on the support rod, with positioning pins inserted into the positioning holes. The support rod is provided with a groove three, the moving block is slidably connected to the groove three, and the positioning pins are inserted into the moving block.

[0009] Furthermore, a limiting rod is symmetrically fixedly installed within the three grooves, and the limiting rod is plugged into the movable block.

[0010] Furthermore, the support rod is magnetically connected to the positioning pin.

[0011] Furthermore, a pressing plate is fixedly installed at one end of the bolt corresponding to the fixing plate.

[0012] Furthermore, a pulley is rotatably connected to the movable rod.

[0013] The beneficial effects of this utility model are:

[0014] This utility model, through structural improvements and optimizations, allows for convenient simultaneous control of the movement of the support rods on both sides via a unidirectional moving mechanism, resulting in better and faster gear fixing and simpler operation. The height adjustment mechanism allows for adjustment of the moving block's height to meet the fixing requirements of gears of different sizes. Furthermore, the moving rod can securely support gear shafts of different diameters, further improving stability during processing. Attached Figure Description

[0015] Figure 1This is a schematic diagram of a gear fixing device for heat treatment of gear blanks according to the present invention.

[0016] Figure 2 This is a schematic diagram of a fixing device for heat treatment of gear blanks according to the present invention.

[0017] Figure 3 This is a schematic diagram of the structure on the support rod of a fixing device for heat treatment of gear blanks according to the present invention.

[0018] Figure 4 This is an exploded view of the support rod of a fixing device for heat treatment of gear blanks according to the present invention.

[0019] As shown in the figure:

[0020] 1. Workbench, 2. Moving block, 3. Groove I, 4. Bearing, 5. Protrusion, 6. Fixing sleeve, 7. Arc-shaped adjusting plate, 8. Bolt, 9. Fixing plate, 10. Moving rod, 11. Sensing rod, 12. Arc-shaped through hole, 13. Groove II, 14. Double threaded screw, 15. Support rod, 16. Rotating handle, 17. Positioning hole, 18. Positioning pin, 19. Groove III, 20. Limiting rod, 21. Pressing plate, 22. Pulley. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please refer to the accompanying diagrams in all instruction manuals:

[0024] A fixing device for heat treatment of gear blanks includes a worktable 1. The worktable 1 is provided with a co-directional moving mechanism, a height adjustment mechanism, and a gear fixing mechanism. The gear fixing mechanism includes a moving block 2, a groove 3 on the moving block 2, a bearing 4 fixedly installed in the groove 3, a protrusion 5 fixedly installed on the inner ring of the bearing 4, a fixing sleeve 6 fixedly installed on the moving block 2 corresponding to the groove 3, an arc-shaped adjusting plate 7 slidably connected to the fixing sleeve 6, a bolt 8 threadedly connected to the arc-shaped adjusting plate 7, a fixing plate 9 fixedly installed on the moving block 2 corresponding to the arc-shaped adjusting plate 7, moving rods 10 symmetrically inserted and connected to the fixing sleeve 6, a sensing rod 11 fixedly installed on the moving rod 10, an arc-shaped through hole 12 on the arc-shaped adjusting plate 7 corresponding to the sensing rod 11, and the sensing rod 11 slidably connected to the arc-shaped through hole 12.

[0025] As can be seen from the above description, based on the size of the gear shaft, the arc-shaped adjusting plate 7 is rotated first. Using the structure of the arc-shaped through hole 12, the sensing rod 11 is moved, so that the moving rods 10 on both sides move concentrically and cooperate to determine the position of the gear shaft. The arc-shaped adjusting plate 7 is fixed by the contact between the bolt 8 and the fixing plate 9. The gear shaft is placed between the moving rods 10, and it is ensured that the protrusion 5 can press against the gear shaft to fix the gear shaft without affecting the rotation of the gear.

[0026] As a technical optimization of this utility model, the co-directional moving mechanism includes a groove 13 located on the worktable 1, a double threaded screw 14 rotatably connected in the groove 13, a support rod 15 threadedly connected to the double threaded screw 14, the support rod 15 slidably connected to the upper surface of the worktable 1, and a rotating handle 16 rotatably connected to one side of the worktable 1, the rotating handle 16 being fixedly connected to the double threaded screw 14.

[0027] As can be seen from the above description, controlling the rotation of the rotary handle 16 rotates the double threaded screw 14, which in turn controls the support rods 15 on both sides to move in the same direction, causing the moving blocks 2 to move closer to each other and slowly drag the gear shaft. The overall operation is relatively convenient, and the structural characteristics of the double threaded screw 14 can also be used to position the support rods 15 well.

[0028] As a technical optimization of this utility model, the height adjustment mechanism includes a plurality of positioning holes 17 located on the support rod 15, a positioning pin 18 is inserted into the positioning hole 17, the support rod 15 is provided with a groove 3 19, the moving block 2 is slidably connected to the groove 3 19, and the positioning pin 18 is inserted into the moving block 2.

[0029] As can be seen from the above description, workers can pre-install and fix the gears according to the required gear model by inserting and fixing them with the corresponding positioning holes 17 and positioning pins 18, thereby adjusting the height of different moving blocks 2 and meeting the processing requirements of different gear models.

[0030] As a technical optimization of this utility model, a limiting rod 20 is symmetrically fixedly installed in the groove 3 19, and the limiting rod 20 is plugged into the moving block 2.

[0031] As can be seen from the above description, the limiting rod 20 can improve the stability of the moving block 2 when it moves up and down.

[0032] As a technical optimization of this utility model, the support rod 15 is magnetically connected to the positioning pin 18;

[0033] As can be seen from the above description, the positioning pin 18 can be easily fixed by magnetic adsorption connection, making the overall operation more convenient.

[0034] As a technical optimization of this utility model, a pressing plate 21 is fixedly installed on one end of the bolt 8 corresponding to the fixing plate 9;

[0035] As can be seen from the above description, the pressing plate 21 can increase the contact area between the bolt 8 and the fixing plate 9, resulting in a better fixing effect.

[0036] As a technical optimization of this utility model, a pulley 22 is rotatably connected to the moving rod 10;

[0037] As can be seen from the above description, pulley 22 can reduce the friction when in contact with the gear shaft, and the gear has better stability when rotating.

[0038] The working process of this utility model is as follows:

[0039] Based on the size of the gear shaft, it is fixed by inserting and fixing with the corresponding positioning hole 17 and positioning pin 18 to realize the adjustment of the height of different moving blocks 2, which meets the processing requirements of different models of gears; control the rotation of the rotating handle 16 to drive the double threaded screw 14 to rotate, control the support rods 15 on both sides to move in the same direction, drive the moving blocks 2 to move closer to each other, and slowly drag the gear shaft; finally, rotate the arc-shaped adjustment plate 7, and use the structure of the arc-shaped through hole 12 to drive the sensing rod 11 to move, so that the moving rods 10 on both sides move concentrically, cooperate with each other to determine the position of the gear shaft, and fix the arc-shaped adjustment plate 7 by the contact of the bolt 8 and the fixing plate 9, placing the gear shaft between the moving rods 10, and ensuring that the protrusion 5 can press against the gear shaft to achieve the fixation of the gear shaft without affecting the rotation of the gear.

[0040] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A fixing device for heat treatment of gear blanks, comprising a worktable, characterized in that: The workbench is equipped with a unidirectional moving mechanism, a height adjustment mechanism, and a gear fixing mechanism. The gear fixing mechanism includes a moving block, a groove on the moving block, a bearing fixedly mounted in the groove, a protrusion fixedly mounted on the inner ring of the bearing, a fixing sleeve fixedly mounted on the moving block corresponding to the groove, an arc-shaped adjusting plate slidably connected to the fixing sleeve, a bolt threadedly connected to the arc-shaped adjusting plate, a fixing plate fixedly mounted on the moving block corresponding to the arc-shaped adjusting plate, moving rods symmetrically inserted and connected to the fixing sleeve, a sensing rod fixedly mounted on the moving rod, an arc-shaped through hole on the arc-shaped adjusting plate corresponding to the sensing rod, and the sensing rod slidably connected to the arc-shaped through hole.

2. The fixing device for heat treatment of gear blanks according to claim 1, characterized in that: The co-directional moving mechanism includes a second groove on the worktable, a double-threaded screw rotatably connected in the second groove, a support rod threadedly connected to the double-threaded screw, the support rod being slidably connected to the upper surface of the worktable, and a rotating handle rotatably connected to one side of the worktable, the rotating handle being fixedly connected to the double-threaded screw.

3. The fixing device for heat treatment of gear blanks according to claim 2, characterized in that: The height adjustment mechanism includes several positioning holes on the support rod, with positioning pins inserted into the positioning holes. The support rod has a groove three, and the moving block is slidably connected to the groove three. The positioning pins are inserted into the moving block.

4. The fixing device for heat treatment of gear blanks according to claim 3, characterized in that: Limiting rods are symmetrically fixedly installed within the three grooves, and the limiting rods are plugged into the moving block.

5. A fixing device for heat treatment of gear blanks according to claim 4, characterized in that: The support rod is magnetically connected to the positioning pin.

6. The fixing device for heat treatment of gear blanks according to claim 1, characterized in that: A pressing plate is fixedly installed at one end of the bolt corresponding to the fixing plate.

7. The fixing device for heat treatment of gear blanks according to claim 1, characterized in that: A pulley is rotatably connected to the movable rod.

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