Hollow ball screw quenching device

Abstract

The utility model discloses a hollow ball screw quenching device belongs to ball screw processing technical field, including the feeding platform, the one side fixed mounting of feeding platform has the cooling platform, the one side fixed mounting of cooling platform has the sectional quenching box, the inside of feeding platform is provided with the sliding slot, the inside fixed mounting of sliding slot has the sliding board, in the utility model, through setting telescopic cover and fixed clamp, through the moving program of control box setting, will the feeding tray move to first heating chamber, after heating, through controlling the feeding tray to move to second heating chamber and heat finally, after heating, through controlling the feeding tray to move to the one side of sectional quenching box, control fixed clamp to the hollow ball screw after heating and take the inside of cooling groove and move, through a plurality of cooling spray pipe and carry out hollow ball screw cooling, and quenching process makes hollow ball screw in lightweight, high accuracy, long life etc. Contradictory demand obtains the best balance.

Description

Technical Field

[0001] This utility model belongs to the field of ball screw processing technology, and in particular relates to a quenching device for hollow ball screws. Background Technology

[0002] A hollow ball screw quenching device is designed specifically for precision transmission components. It adopts intelligent segmented heating and precise cooling technology, combined with adaptive clamping and internal and external synchronous temperature control system, which effectively improves the surface hardness and wear resistance of the screw, while ensuring the stability of the lightweight hollow structure. It integrates safety protection and automatic control modules and is suitable for CNC equipment, industrial robots and other fields, taking into account both high-efficiency production and process reliability.

[0003] Several utility model patents in the field of ball screw quenching devices are disclosed in the prior art. Among them, utility model patent with publication number CN 112048600 A discloses a ball screw quenching device, including a base and a high-frequency quenching box. The high-frequency quenching box is located on one side above the base. A support leg is fixed to the bottom of the high-frequency quenching box and is fixed to the base. A mounting frame is fixedly connected to the upper end of the base. A horizontally placed placement plate is fixedly connected to the inner side of the mounting frame. The placement plate passes through the inner side of the high-frequency quenching box. A guide groove is opened on the upper surface of the placement plate. A movable placement frame is provided in the guide groove. An electric guide rail is installed on the base. A feeding mechanism connected to the placement frame is installed on the moving end of the electric guide rail. A cooling spray pipe located above the placement plate is installed on the inner top wall of the mounting frame. This invention realizes rapid loading and unloading of ball screws during the quenching process, greatly improving the efficiency of quenching processing, and has good promotion and practical value.

[0004] Although the aforementioned utility model patent can achieve quenching of ball screws, it places the ball screw directly in the feed trough and then pushes it into the quenching box. This process can easily affect the accuracy of hollow ball screws and cause them to collapse internally, so it needs to be improved.

[0005] Based on this, the present invention designs a hollow ball screw quenching device to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to address the problem that, although the aforementioned utility model patent can achieve quenching of ball screws, the process of placing the ball screw directly into the feed trough and then pushing it into the quenching box can easily affect the accuracy of hollow ball screws and cause them to collapse internally. Therefore, a hollow ball screw quenching device is proposed.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A hollow ball screw quenching device includes a loading platform, a cooling platform fixedly installed on one side of the loading platform, a segmented quenching box fixedly installed on one side of the cooling platform, a sliding groove opened inside the loading platform, a sliding plate fixedly installed inside the sliding groove, a motor fixedly installed at one end of the sliding plate, a sliding screw rotatably installed on one side of the motor, a sliding block rotatably connected to the surface of the sliding screw, a fixed plate fixedly installed on the top of the sliding block, and a fixed groove opened inside the fixed plate.

[0009] As a further description of the above technical solution:

[0010] A telescopic sleeve is slidably installed on one side of the segmented quenching box, and a telescopic connecting rod is sleeved inside the telescopic sleeve. A clamping plate is provided at the bottom of the telescopic connecting rod.

[0011] As a further description of the above technical solution:

[0012] An electronic control device is fixedly installed on the top of the clamping plate, and a fixing clip is fixedly installed on one side of the clamping plate, with the surface of the fixing clip coated with a silicon carbide ceramic coating.

[0013] As a further description of the above technical solution:

[0014] The cooling platform has a cooling tank inside, and cooling spray pipes are fixedly installed on the surface of the cooling tank at multiple locations.

[0015] As a further description of the above technical solution:

[0016] The segmented quenching box has a feeding tray that is slidably installed inside, and a heat insulation plate that is fixedly installed inside the segmented quenching box. The position of the heat insulation plate corresponds to the position of the feeding tray. Multiple electrically controlled heating lamps are fixedly installed on the inner top of the segmented quenching box.

[0017] As a further description of the above technical solution:

[0018] A control box is fixedly installed on one side of the segmented quenching box. A display screen is provided on one side of the top of the control box, and an emergency stop button is provided on the top of the control box.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. In this utility model, by setting a telescopic sleeve and a fixing clamp, when using this device to quench a hollow ball screw, first, the hollow ball screw is placed inside the fixing groove. Then, by starting the motor, the sliding block is driven to slide on the surface of the ball screw. The sliding block drives the fixing plate to move along a fixed path. When the fixing plate moves to the designated position, the fixing clamp is remotely controlled by the electronic control device on the top of the fixing clamp plate to grip the hollow ball screw. After gripping, the fixing clamp is placed on the feeding tray by external control. The internal heating process involves moving the feed tray to the first heating chamber via a program set in the control box. After heating, the feed tray is moved to the second heating chamber for final heating. After heating, the feed tray is moved to one side of the segmented quenching box, and the fixed clamp is used to grip and move the heated hollow ball screw into the cooling tank. Multiple cooling nozzles are used to cool the hollow ball screw. The quenching process achieves the best balance between the conflicting requirements of lightweight, high precision, and long service life for the hollow ball screw.

[0021] 2. In this utility model, when using the device to quench a hollow ball screw by setting a feeding tray and a heat insulation plate, the hollow ball screw is clamped in the inside of the feeding tray by a fixing clamp. The feeding tray is then moved to the first heating chamber by the control box. By slowly raising the temperature, residual stress from the screw machining is eliminated, avoiding stress superposition during subsequent quenching that could lead to cracks. After heating in the first heating chamber, the feeding tray is moved through the heat insulation plate to the second heating chamber by the control box. High-frequency induction is used to rapidly raise the temperature, ensuring austenitization and avoiding grain coarsening. Through the synergistic effect of dual-stage heating, the ball screw can obtain better mechanical properties and dimensional stability while ensuring the integrity of the hollow structure, meeting the stringent requirements of precision transmission components in machine tools, aerospace, and other fields. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of a hollow ball screw quenching device proposed in this utility model.

[0023] Figure 2 This is a schematic diagram of the loading platform structure of a hollow ball screw quenching device proposed in this utility model;

[0024] Figure 3 This is a schematic diagram of the electric slide rail structure of a hollow ball screw quenching device proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the clamping device structure of the hollow ball screw quenching device proposed in this utility model.

[0026] Figure 5This is a schematic diagram of the cooling table structure of a hollow ball screw quenching device proposed in this utility model.

[0027] Figure 6 This is a schematic diagram of the segmented quenching box structure of a hollow ball screw quenching device proposed in this utility model.

[0028] Figure 7 This is a cross-sectional view of a segmented quenching box for a hollow ball screw quenching device proposed in this utility model.

[0029] Legend:

[0030] 1. Feeding platform; 2. Cooling platform; 3. Segmented quenching box; 4. Sliding groove; 5. Sliding plate; 6. Motor; 7. Sliding screw; 8. Sliding block; 9. Fixed plate; 10. Fixed groove; 11. Telescopic sleeve; 12. Telescopic connecting rod; 13. Clamping plate; 14. Electrical control device; 15. Fixed clamp; 16. Cooling tank; 17. Cooling spray pipe; 18. Feeding tray; 19. Heat insulation plate; 20. Electrically controlled heating lamp; 21. Control box; 22. Display screen; 23. Emergency stop button. Detailed Implementation

[0031] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see the appendix Figure 1 -Appendix Figure 7 This utility model provides a technical solution: a hollow ball screw quenching device, including a loading platform 1, a cooling platform 2 fixedly installed on one side of the loading platform 1, a segmented quenching box 3 fixedly installed on one side of the cooling platform 2, a sliding groove 4 opened inside the loading platform 1, a sliding plate 5 fixedly installed inside the sliding groove 4, a motor 6 fixedly installed at one end of the sliding plate 5, a sliding screw 7 rotatably installed on one side of the motor 6, a sliding block 8 rotatably connected to the surface of the sliding screw 7, a fixed plate 9 fixedly installed on the top of the sliding block 8, and a fixed groove 10 opened inside the fixed plate 9.

[0033] The specific implementation method is as follows: a telescopic sleeve 11 is slidably installed on one side of the segmented quenching box 3, a telescopic connecting rod 12 is sleeved inside the telescopic sleeve 11, and a clamping plate 13 is provided at the bottom of the telescopic connecting rod 12.

[0034] By setting up a telescopic sleeve 11 and a telescopic connecting rod 12, the telescopic sleeve 11 can be moved by a motor, which can drive the fixed clamp 15 to clamp the hollow ball screw. The telescopic connecting rod 12, which is sleeved inside the telescopic sleeve 11, can extend the distance to ensure that the hollow ball screw can be picked up and placed to meet the quenching requirements of the hollow ball screw.

[0035] The specific implementation method is as follows: an electronic control device 14 is fixedly installed on the top of the clamping plate 13, and a fixing clip 15 is fixedly installed on one side of the clamping plate 13, and the surface of the fixing clip 15 is coated with a silicon carbide ceramic coating.

[0036] By setting up an electronic control device 14 and a fixing clamp 15, and by inputting the program into the electronic control device 14 in advance, the electronic control device 14 controls the fixing clamp 15 to clamp and place the hollow ball screw, so as to avoid cantilever vibration. Through dynamic pressure mapping technology, it is ensured that the clamping area does not overlap with the quenching and hardening area.

[0037] The specific implementation method is as follows: a cooling tank 16 is provided inside the cooling platform 2, and cooling spray pipes 17 are fixedly installed on the surface of the cooling tank 16 at multiple locations.

[0038] By setting up a cooling tank 16 and a cooling nozzle 17, the heated hollow ball screw is placed inside the cooling tank 16 by a fixing clamp 15. The cooling nozzle 17 is then used to gradually cool the hollow ball screw, so that the cooling rate gradually decreases from the initial stage. This ensures that the martensitic phase transformation is complete and the residual stress is controllable. The pressure spray atomized quenching medium evenly covers the inner wall through centrifugal force, avoiding collapse or cracks caused by uneven heat dissipation of the hollow structure.

[0039] The specific implementation method is as follows: a feeding tray 18 is slidably installed inside the segmented quenching box 3, a heat insulation plate 19 is fixedly installed inside the segmented quenching box 3, and the position of the heat insulation plate 19 corresponds to the position of the feeding tray 18. Multiple electrically controlled heating lamps 20 are fixedly installed on the inner top of the segmented quenching box 3.

[0040] By setting up a feeding tray 18 and a heat insulation plate 19, the heat insulation plate 19 fixed inside the segmented quenching box 3 divides the interior of the segmented quenching box 3 into two different heating chambers. By controlling the feeding tray 18, the hollow ball screw is fed into the two heating chambers step by step for heating. The two sections work together to uniformly increase the hardness of the quenched hollow ball screw and reduce the occurrence rate of quenching cracks.

[0041] The specific implementation method is as follows: a control box 21 is fixedly installed on one side of the segmented quenching box 3, a display screen 22 is provided on one side of the top of the control box 21, and an emergency stop button 23 is provided on the top of the control box 21.

[0042] By setting up a control box 21 and an emergency stop button 23, the control box 21 in this device can regulate the temperature and cooling rate, and can also perform multi-system coordinated operation. It can also store the heating power and cooling parameters of each product. The emergency stop button 23 installed at the bottom of the control box 21 can achieve millisecond-level emergency stop. After triggering the emergency stop, the main power supply is cut off, the heating / cooling system is shut down, and the mechanical brake is activated within 0.1 seconds to avoid fire or equipment damage caused by overheating, leakage or mechanical jamming.

[0043] Working principle and usage: When using this device to quench hollow ball screws, first place the hollow ball screw to be quenched inside the fixed groove 10. Drive motor 6 drives fixed plate 9 to move to a designated position on the surface of sliding screw 7. After fixed plate 9 reaches the designated position, the program inside the electrical control device 14 drives fixed clamp 15 to clamp the hollow ball screw. After clamping, the internal motor controls fixed clamp 15 to place the hollow ball screw inside the feeding tray 18. Then, the program inside control box 21... The feeding tray 18 is first moved to the first heating chamber for step-by-step heating. After the first stage of heating is completed, the feeding tray 18 is moved through the heat insulation plate 19 to the second heating chamber for main heating. After heating is completed, the feeding tray 18 is moved to one side of the segmented quenching box 3, and the fixing clamp 15 is used to clamp the heated hollow ball screw. After clamping, the fixing clamp 15 is moved to the inside of the cooling tank 16, and multiple cooling nozzles 17 are used to cool the heated hollow ball screw to complete the quenching of the hollow ball screw.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hollow ball screw quenching device comprising a feeding table (1), characterized in that, A cooling platform (2) is fixedly installed on one side of the loading platform (1), and a segmented quenching box (3) is fixedly installed on one side of the cooling platform (2). A sliding groove (4) is opened inside the loading platform (1), and a sliding plate (5) is fixedly installed inside the sliding groove (4). A motor (6) is fixedly installed at one end of the sliding plate (5), and a sliding screw (7) is rotatably installed on one side of the motor (6). A sliding block (8) is rotatably connected to the surface of the sliding screw (7), and a fixed plate (9) is fixedly installed on the top of the sliding block (8). A fixed groove (10) is opened inside the fixed plate (9).

2. The hollow ball screw quenching device according to claim 1, wherein A telescopic sleeve (11) is slidably installed on one side of the segmented quenching box (3). A telescopic connecting rod (12) is sleeved inside the telescopic sleeve (11). A clamping plate (13) is provided at the bottom of the telescopic connecting rod (12).

3. The hollow ball screw quenching device according to claim 2, wherein An electrical control device (14) is fixedly installed on the top of the clamping plate (13), and a fixing clip (15) is fixedly installed on one side of the clamping plate (13), and the surface of the fixing clip (15) is coated with a silicon carbide ceramic coating.

4. The hollow ball screw quenching device according to claim 1, wherein The cooling platform (2) has a cooling tank (16) inside, and cooling spray pipes (17) are fixedly installed on the surface of the cooling tank (16) at multiple locations.

5. The hollow ball screw quenching device according to claim 1, wherein The segmented quenching box (3) has a feeding tray (18) slidably installed inside, and a heat insulation plate (19) is fixedly installed inside the segmented quenching box (3). The position of the heat insulation plate (19) corresponds to the position of the feeding tray (18). Multiple electrically controlled heating lamps (20) are fixedly installed on the inner top of the segmented quenching box (3).

6. The hollow ball screw quenching device according to claim 1, wherein A control box (21) is fixedly installed on one side of the segmented quenching box (3). A display screen (22) is provided on one side of the top of the control box (21). An emergency stop button (23) is provided on the top of the control box (21).

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