Bearing roller pin positioning heat treatment device

Abstract

The utility model relates to the technical field of bearing roller pin heat treatment, in particular to a bearing roller pin positioning heat treatment device which comprises an installation support and a feeding pipe installed on the installation support, a bearing roller pin is arranged in the feeding pipe in a sliding mode, and a vertical pushing assembly, a horizontal pushing assembly and a heating assembly are further arranged on the installation support. The vertical pushing assembly pushes the bearing roller pin to move vertically, the horizontal pushing assembly pushes the bearing roller pin to move horizontally, the heating assembly comprises a heating coil and an inductor electrically connected with the heating coil, a notch is formed in the feeding pipe and extends inwards from the side wall of the feeding pipe, and the inductor is electrically connected with the heating coil. The heating coil penetrates through the notch and is connected into the inner wall of the feeding pipe in a matched mode, the height of the heating coil is half of the height of the bearing roller pins, and the multiple bearing roller pins can sequentially penetrate through the heating coil.

Description

Technical Field

[0001] This utility model relates to the field of bearing needle roller heat treatment technology, and in particular to a bearing needle roller positioning heat treatment device. Background Technology

[0002] Bearing needle rollers are components of rolling bearings. They are short, thin, cylindrical parts made of high-strength materials that roll within the bearing to reduce friction and support shaft rotation. Bearing needle rollers require high surface hardness and straightness to meet operational needs. Typically, after machining, they undergo heat treatment, including normalizing, tempering, and quenching, to improve their overall mechanical properties and mitigate deformation. Induction hardening is a common method for quenching bearing needle rollers, offering advantages such as rapid heating, minimal deformation, and stable process quality. However, current induction heat treatment processes for bearing needle rollers involve sequential loading. This involves clamping the needle rollers one by one using a fixture, placing them into an inductor, and then quenching the workpiece using the inductor's coil. After quenching, the fixture is released, and the needle rollers are ejected using a feeding device. This process is generally inefficient, requires high-quality fixtures, and cannot adapt to different heat-treated areas.

[0003] To address the aforementioned technical problems, Chinese patent document CN201922100982.2 discloses an induction hardening mechanism for the cylindrical surface of needle rollers in cylindrical bearings. This mechanism includes a vibrating feeding plate, a guide pipe, a connector, a shuttle block, a transition section, a sensor, a rotating component, a water sprayer, a water tank, a chain conveyor, and a material frame. The rotating component includes a transition magnetic head, a permanent magnet, a bearing, a synchronous pulley, and an adjusting screw. The sensor includes an insulating ring and a coil. While this patent uses magnetic attraction to clamp the bearing needle rollers, significantly improving loading and unloading efficiency, the processing area cannot be moved, especially the magnetically attracted area, which is susceptible to loss of magnetism due to high temperatures, thus limiting processing capabilities.

[0004] Therefore, it is necessary for those skilled in the art to provide a bearing needle roller positioning heat treatment device to improve the stability and processing efficiency of the heat treatment process. Utility Model Content

[0005] The purpose of this utility model is to provide a bearing needle roller positioning heat treatment device to solve the technical problems of low processing efficiency and limited processing applicability when quenching bearing needle rollers in the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a bearing needle roller positioning heat treatment device, including a mounting bracket, a feeding pipe mounted on the mounting bracket, bearing needle rollers slidably disposed inside the feeding pipe, the mounting bracket also being provided with a vertical pushing component, a horizontal pushing component and a heating component, the vertical pushing component pushing the bearing needle rollers to move vertically, the horizontal pushing component pushing the bearing needle rollers to move horizontally, the heating component including a heating coil and an inductor electrically connected to the heating coil, a notch being opened on the feeding pipe extending inward from the side wall of the feeding pipe, the heating coil passing through the notch and being fitted into the inner wall of the feeding pipe, the height of the heating coil being half the height of the bearing needle rollers, and multiple bearing needle rollers being able to pass through the heating coil sequentially.

[0007] Furthermore, the vertical pushing assembly includes a first telescopic cylinder, which is vertically arranged on the mounting bracket. The telescopic rod of the first telescopic cylinder extends and retracts vertically upward. A limiting block is also provided on the mounting bracket above the first telescopic cylinder. The telescopic rod of the first telescopic cylinder passes through the wall of the limiting block and can extend upward. The telescopic rod of the first telescopic cylinder is telescopically disposed within the limiting block.

[0008] Furthermore, the limiting block is provided with a transmission block, which has an inverted U-shaped structure and a transmission channel inside the transmission block. The transmission channel penetrates the wall of the transmission block in a horizontal direction, and the wall of the transmission block has an upper through hole in a direction perpendicular to the transmission channel, which penetrates the wall of the transmission channel.

[0009] Furthermore, the feeding pipe is located at the top of the transmission block, and the feeding pipe is coaxially arranged with the upper through hole. The feeding pipe is connected to the transmission channel, and the diameter of the upper through hole is larger than the diameter of the bearing needle roller. The bearing needle roller can be transmitted from the feeding pipe to the transmission channel.

[0010] Furthermore, the limiting block is provided with a lower through hole, which penetrates the wall of the limiting block, and the inner diameter of the lower through hole is smaller than the diameter of the bearing needle roller.

[0011] Furthermore, the telescopic rod of the first telescopic cylinder is slidably disposed in the lower through hole, the telescopic rod of the first telescopic cylinder can extend into the feeding tube, and the telescopic rod of the first telescopic cylinder can abut against the end face of the bearing needle roller.

[0012] Furthermore, the horizontal pushing assembly includes a second telescopic cylinder, which is horizontally arranged on the mounting bracket. The telescopic rod of the second telescopic cylinder is provided with a pusher head, which is connected to and slidably disposed in the transmission channel. The end face of the pusher head can abut against the bearing needle roller.

[0013] Furthermore, the height of the bearing needle roller is greater than the height of the pusher head, and the height of the bearing needle roller is less than the height of the transmission channel.

[0014] Furthermore, the pusher head can move from one end of the transmission channel to the other end, with one bearing needle abutting the side of the pusher head and the other bearing needle abutting the top surface of the pusher head.

[0015] Furthermore, both the first telescopic cylinder and the second telescopic cylinder are pneumatic cylinders.

[0016] The beneficial effects of this utility model are as follows: This utility model sets the heating component for heat treatment of bearing needle rollers inside the feeding tube, realizing orderly heating of bearing needle rollers that are fed in sequence, reducing clamping steps, thereby improving processing efficiency. At the same time, the bearing needle rollers located inside the feeding tube abut against each other, eliminating the need for extra clamping parts, reducing the impact of high temperature, improving stability and service life. In addition, this utility model uses the telescopic rod of the first conveying cylinder to push the bearing needle rollers inside the feeding tube in a small range, ensuring smooth sliding and reducing jamming. Attached Figure Description

[0017] Figure 1 This is a perspective view of the bearing needle roller positioning heat treatment device of this utility model.

[0018] Figure 2 This is a front sectional view of the bearing needle roller positioning heat treatment device of this utility model.

[0019] Figure 3 This is an exploded view of the bearing needle roller positioning heat treatment device of this utility model.

[0020] Figure 4 yes Figure 2 A magnified view of part A in the middle.

[0021] The components in the attached diagram are labeled as follows: 10. Mounting bracket; 11. Feeding pipe; 12. Limiting block; 13. Transmission block; 14. Transmission channel; 15. Lower through hole; 16. Upper through hole; 18. Falling slide; 19. Notch; 20. Vertical pushing assembly; 21. First telescopic cylinder; 30. Horizontal pushing assembly; 31. Second telescopic cylinder; 32. Pushing head; 40. Heating assembly; 41. Heating coil; 50. Bearing needle roller. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0023] Please see Figure 1This utility model provides a bearing needle roller positioning heat treatment device, including a mounting bracket 10 and a feeding pipe 11 mounted on the mounting bracket 10. Bearing needle rollers 50 are slidably provided in the feeding pipe 11. In use, the bearing needle rollers 50 are sequentially transported into the feeding pipe 11 along the axial direction by a screening machine (not shown in the figure).

[0024] Furthermore, the mounting bracket 10 is also provided with a vertical pushing component 20, a horizontal pushing component 30 and a heating component 40. The vertical pushing component 20 is used to push the bearing needle roller 50 to move vertically, the horizontal pushing component 30 is used to push the bearing needle roller 50 to move horizontally, and the heating component 40 is used to heat the bearing needle roller 50.

[0025] Specifically, please refer to Figure 2 , Figure 3 , Figure 4 The vertical pushing component 20 includes a first telescopic cylinder 21, which is vertically arranged on the mounting bracket 10. The telescopic rod of the first telescopic cylinder 21 extends and retracts vertically upward. A limiting block 12 is also provided on the mounting bracket 10 above the first telescopic cylinder 21. The telescopic rod of the first telescopic cylinder 21 passes through the wall of the limiting block 12 and can extend upward. The telescopic rod of the first telescopic cylinder 21 is telescopically arranged within the limiting block 12.

[0026] The limiting block 12 is provided with a transmission block 13. The transmission block 13 has an inverted U-shaped structure and a transmission channel 14 is provided inside the transmission block 13. The transmission channel 14 penetrates the wall of the transmission block 13 in the horizontal direction. The wall of the transmission block 13 is provided with an upper through hole 16 in the direction perpendicular to the transmission channel 14. The upper through hole 16 penetrates the wall of the transmission channel 14.

[0027] The feeding pipe 11 is disposed on the top of the conveying block 13, and is coaxially arranged with the upper through hole 16. The feeding pipe 11 connects to the conveying channel 14. The diameter of the upper through hole 16 is larger than the diameter of the bearing needle roller 50, so that the bearing needle roller 50 can be conveyed from the feeding pipe 11 into the conveying channel 14. At the same time, the limiting block 12 is provided with a lower through hole 15, which penetrates the wall of the limiting block 12. The inner diameter of the lower through hole 15 is smaller than the diameter of the bearing needle roller 50. This prevents the bearing needle roller 50 from getting stuck, allowing the bearing needle roller 50 to slide stably within the conveying channel 14. The telescopic rod of the first telescopic cylinder 21 is slidably disposed within the lower through hole 15. The telescopic rod of the first telescopic cylinder 21 can extend into the feeding pipe 11 and abut against the end face of the bearing needle roller 50.

[0028] In use, multiple bearing needle rollers 50 are located inside the feed tube 11, with their end faces abutting against each other. The bearing needle rollers 50 are arranged tightly along the axial direction inside the feed tube 11. The bearing needle roller 50 closest to the transfer block 13 slides into the transfer channel 14 first. Since the feed tube 11 is partially curved, to prevent the bearing needle rollers 50 from getting stuck inside, this invention utilizes the telescopic rod of the first conveying cylinder 21 to push the bearing needle rollers 50 inside the feed tube 11 within a small range, ensuring smooth sliding and reducing jamming. Under normal operating conditions, the telescopic rod of the first conveying cylinder 21 should retract into the lower through hole 15, with the end face of the telescopic rod flush with the upper plane of the limiting block 12, ensuring the stability of the bearing needle rollers 50 after they fall.

[0029] The horizontal pushing assembly 30 includes a second telescopic cylinder 31, which is horizontally arranged on the mounting bracket 10. The telescopic rod of the second telescopic cylinder 31 is provided with a push head 32. The push head 32 is connected to and slidably disposed in the transmission channel 14. The end face of the push head 32 can abut against the bearing needle roller 50. The height of the bearing needle roller 50 is greater than the height of the push head 32 and less than the height of the transmission channel 14.

[0030] In the stationary state, the end face of the pusher head 32 is located on one side of the upper through hole 16. The bearing needle roller 50 slides down from the upper through hole 16 and falls into the side of the end face of the pusher head 32. In the working state, the pusher head 32 pushes the bearing needle roller 50 from one end of the transmission channel 14 to the other end. At the same time, the pusher head 32 moves below the upper through hole 16, so that other bearing needle rollers 50 falling from the feed tube 11 fall into the top surface of the pusher head 32, thereby realizing the operation of pushing only one bearing needle roller 50.

[0031] In this embodiment, one bearing needle roller 50 abuts against the side of the push head 32, and the other bearing needle roller 50 abuts against the top surface of the push head 32. When one bearing needle roller 50 is pushed, the height of the bearing needle roller 50 is greater than the height of the push head 32, causing the other bearing needle roller 50 to automatically slide down to the top surface of the push head 32, thereby ensuring stability during use.

[0032] In this embodiment, the upper surface of the limiting block 12 is provided with a falling slide 18, which is connected to the transmission channel 14. At the same time, the falling slide 18 is directly opposite the cooling water pool (not shown in the figure). In use, the bearing needle roller 50 pushed out from the transmission channel 14 falls into the cooling water pool under the guidance of the falling slide 18.

[0033] The heating assembly 40 includes a heating coil 41 and an inductor (not shown) electrically connected to the heating coil. A notch 19 is provided on the feeding tube 11, extending inward from the side wall of the feeding tube 11. The heating coil 41 passes through the notch 19 and is fitted into the inner wall of the feeding tube 11. The height of the heating coil 41 is half the height of the bearing needle rollers 50. Multiple bearing needle rollers 50 sequentially pass through the heating coil 41 and fall into the transmission channel 14.

[0034] In use, the bearing needle rollers 50 fall sequentially from the feeding pipe 11. After one bearing needle roller 50 moves into the heating coil 41, the heating coil 41 is energized by the inductor, thereby rapidly heating the bearing needle rollers 50 inside the heating coil 41 to complete the heat treatment. The bearing needle rollers 50 located in the transmission channel 14 are pushed out by the horizontal pushing component 30, and the bearing needle rollers 50 located in the heating coil 41 fall into the transmission channel 14. At the same time, another bearing needle roller 50 falls into the heating coil 41. The inductor and the horizontal pushing component 30 are activated sequentially to achieve uninterrupted heating, feeding, and material changing operations.

[0035] In this embodiment, the first telescopic cylinder 21 is a pneumatic cylinder, and the second telescopic cylinder 31 is a pneumatic cylinder.

[0036] The specific operation method of this utility model is as follows: Step 1: The bearing needle rollers 50 are sequentially transmitted axially to the feeding pipe 11 by the screening machine, and the bearing needle rollers 50 fall sequentially from the feeding pipe 11.

[0037] Step 2: One bearing needle roller 50 slides into the transmission channel 14, and the bearing needle roller 50 moves into the heating coil 41. The sensor is activated to energize the heating coil 41 to complete the heat treatment.

[0038] Step 3: Activate the horizontal pushing component 30 to push out the bearing needle roller 50 located in the transmission channel 14, and the bearing needle roller 50 located in the heating coil 41 falls into the transmission channel 14. At the same time, another bearing needle roller 50 falls into the heating coil 41, completing the material change.

[0039] Step 4: Repeatedly activate the sensor and horizontal push assembly 30 to achieve uninterrupted feeding, heating, and material changing operations.

[0040] Step 5: When a jam occurs, activate the vertical push component 20 to push the bearing needle roller 50 located in the feed pipe 11 to clear the blockage.

[0041] This invention integrates a heating assembly 40 for heat treatment of bearing needle rollers 50 into the feeding tube 11, enabling orderly heating of the sequentially fed bearing needle rollers 50. This reduces clamping steps and improves processing efficiency. Furthermore, the bearing needle rollers 50 within the feeding tube 11 abut against each other, eliminating unnecessary clamping components and reducing the impact of high temperatures, thus improving stability and service life. Additionally, this invention utilizes the telescopic rod of the first conveying cylinder 21 to push the bearing needle rollers 50 within the feeding tube 11 in a small range, ensuring smooth sliding and reducing jamming.

[0042] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A bearing needle roller positioning heat treatment device, comprising a mounting bracket (10), a feeding pipe (11) mounted on the mounting bracket (10), wherein bearing needle rollers (50) are slidably disposed within the feeding pipe (11), characterized in that, The mounting bracket (10) is also provided with a vertical pushing component (20), a horizontal pushing component (30) and a heating component (40). The vertical pushing component (20) pushes the bearing needle roller (50) to move vertically, and the horizontal pushing component (30) pushes the bearing needle roller (50) to move horizontally. The heating component (40) includes a heating coil (41) and an inductor electrically connected to the heating coil. A notch (19) is provided on the feeding tube (11). The notch (19) extends inward from the side wall of the feeding tube (11). The heating coil (41) passes through the notch (19) and is connected to the inner wall of the feeding tube (11). The height of the heating coil (41) is half the height of the bearing needle roller (50). Multiple bearing needle rollers (50) can pass through the heating coil (41) in sequence.

2. The bearing needle roller positioning heat treatment device according to claim 1, characterized in that, The vertical pushing assembly (20) includes a first telescopic cylinder (21), which is vertically arranged on the mounting bracket (10). The telescopic rod of the first telescopic cylinder (21) extends vertically upward. A limiting block (12) is also provided on the mounting bracket (10) above the first telescopic cylinder (21). The telescopic rod of the first telescopic cylinder (21) passes through the wall of the limiting block (12) and can extend upward. The telescopic rod of the first telescopic cylinder (21) is telescopically arranged in the limiting block (12).

3. The bearing needle roller positioning heat treatment device according to claim 2, characterized in that, The limiting block (12) is provided with a transmission block (13), which has an inverted U-shaped structure and a transmission channel (14) inside. The transmission channel (14) penetrates the wall of the transmission block (13) in the horizontal direction. The wall of the transmission block (13) is provided with an upper through hole (16) in the direction perpendicular to the transmission channel (14), which penetrates the wall of the transmission channel (14).

4. The bearing needle roller positioning heat treatment device according to claim 3, characterized in that, The feeding pipe (11) is located on the top of the transmission block (13). The feeding pipe (11) is coaxially arranged with the upper through hole (16). The feeding pipe (11) is connected to the transmission channel (14). The diameter of the upper through hole (16) is larger than the diameter of the bearing needle roller (50). The bearing needle roller (50) can be transmitted from the feeding pipe (11) to the transmission channel (14).

5. The bearing needle roller positioning heat treatment device according to claim 2, characterized in that, The limiting block (12) is provided with a lower through hole (15), which penetrates the wall of the limiting block (12). The inner diameter of the lower through hole (15) is smaller than the diameter of the bearing needle roller (50).

6. The bearing needle roller positioning heat treatment device according to claim 5, characterized in that, The telescopic rod of the first telescopic cylinder (21) is slidably disposed in the lower through hole (15), the telescopic rod of the first telescopic cylinder (21) can extend into the feed pipe (11), and the telescopic rod of the first telescopic cylinder (21) can abut against the end face of the bearing needle roller (50).

7. The bearing needle roller positioning heat treatment device according to claim 3, characterized in that, The horizontal pushing assembly (30) includes a second telescopic cylinder (31), which is horizontally arranged on the mounting bracket (10). The telescopic rod of the second telescopic cylinder (31) is provided with a push head (32), which is connected to the transmission channel (14) and slidably disposed in the transmission channel (14). The end face of the push head (32) can abut against the bearing needle roller (50).

8. The bearing needle roller positioning heat treatment device according to claim 7, characterized in that, The height of the bearing needle roller (50) is greater than the height of the push head (32), and the height of the bearing needle roller (50) is less than the height of the transmission channel (14).

9. The bearing needle roller positioning heat treatment device according to claim 8, characterized in that, The pusher head (32) pushes the bearing needles (50) and can move from one end of the transmission channel (14) to the other end. One bearing needle (50) abuts against the side of the pusher head (32) and the other bearing needle (50) abuts against the top surface of the pusher head (32).

10. The bearing needle roller positioning heat treatment device according to claim 7, characterized in that, The first telescopic cylinder (21) is a cylinder, and the second telescopic cylinder (31) is a cylinder.

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