Lead screw annealing mechanism

Abstract

The application relates to a lead screw annealing mechanism applied to the field of lead screw machining, which comprises a base, an annealing machine arranged on the base, a feeding device, a fixing device, a transplanting device and a discharging device arranged on the base, the feeding device is used for feeding the lead screws to the fixing device one by one, the fixing device is used for fixing the lead screws, the transplanting device is used for conveying the fixing device to the heating end of the annealing machine, and the discharging device is used for discharging the annealed lead screws from the fixing device. The application has the technical effect that the feeding, transplanting and discharging processes are completed by the equipment, the operator does not need to approach the annealing machine and the lead screw in the high-temperature stage of lead screw heating, the possibility of harm to the human body caused by high temperature is effectively reduced, the safety of operation is greatly improved, time and labor are saved, and the production efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of lead screw technology, and in particular to a lead screw annealing mechanism. Background Technology

[0002] A lead screw, also known as a screw rod, is the most commonly used transmission element in machine tools and precision machinery.

[0003] During the production of lead screws, an annealing process is required. In related technologies, operators manually place the lead screw onto a fixture, use the fixture to fix the lead screw, and then manually push the lead screw on the fixture into the heating end of the annealing machine. After the annealing machine has heated for a predetermined time, the operator manually pulls out the fixture and removes the annealed lead screw.

[0004] The above-mentioned method, in which the operator manually pushes and pulls the fixture to bring the lead screw into the heating end of the annealing machine, results in the lead screw being heated to extremely high temperatures during the annealing process. Manual operation poses safety hazards to the operator, and the entire process requires personnel to be on-site at all times, increasing labor costs, consuming time and effort, and leading to low production efficiency. Summary of the Invention

[0005] To address the issue of manually pushing and pulling fixtures to heat the lead screw into the heating end of the annealing machine, which results in extremely high temperatures during annealing, poses safety hazards for operators and requires constant on-site presence, increasing labor costs and leading to low production efficiency, this application provides a lead screw annealing mechanism. The mechanism includes a base, with the annealing machine mounted on it. The base is equipped with a feeding device, a fixing device, a transfer device, and a discharging device. The feeding device feeds lead screws one by one to the fixing device, which secures the lead screw. The transfer device transports the fixing device to the heating end of the annealing machine. The discharging device removes the annealed lead screw from the fixing device.

[0006] In one specific implementation, the feeding device includes an inclined seat mounted on a base, a hopper on the inclined seat that matches the diameter of the lead screw, the lead screws being arranged in an array within the hopper, the discharge end of the hopper corresponding to the inlet end of the fixed device, and a feeding unit on the hopper for discharging material from the lead screws one by one.

[0007] In one specific implementation, the feeding unit includes a limiting cylinder and a feeding cylinder disposed on the hopper. The feeding cylinder is located between the fixing device and the limiting cylinder. The output end of the limiting cylinder is provided with a limiting rod, and the output end of the feeding cylinder is provided with a feeding rod. The lead screw to be fed is located between the limiting rod and the feeding rod, and the stacked lead screws are located on the side of the limiting rod away from the feeding rod.

[0008] In one specific implementation, the fixing device includes a base frame mounted on a base, the base frame having a limiting groove corresponding to the material outlet end of the hopper, the lead screw to be annealed being mounted in the limiting groove, and the base frame having a fixing unit for fixing the lead screw.

[0009] In one specific implementation, the fixing unit includes a telescopic cylinder mounted on a base frame. The output end of the telescopic cylinder is hinged to a pressure rod. The pressure rod has a connecting hole and a connecting rod that matches the connecting hole. The connecting rod is rotatably connected to the connecting hole, and a lead screw is located between the pressure rod and the limiting groove.

[0010] In one specific implementation, the pressure rod has an arc groove on its surface facing the base that matches the lead screw.

[0011] In one specific implementation, the transplanting device includes a linear module mounted on a base, the base frame being mounted on a slide of the linear module, the sliding direction of the linear module corresponding to the heating end of the annealing machine.

[0012] In one specific implementation, the feeding device includes a rodless cylinder mounted on a base, a mounting frame on the slide of the rodless cylinder, and a clamping unit for clamping the lead screw on the mounting frame.

[0013] In one specific implementation, the clamping unit includes a parallel finger cylinder mounted on a mounting frame, with the end of the lead screw to be unloaded away from the annealing machine located between two slides of the parallel finger cylinder.

[0014] In one specific implementation, the base is provided with a receiving box, which is located between the mounting frame and the base.

[0015] In summary, this application has the following beneficial technical effects: When annealing of the lead screw is required, the feeding device conveys the lead screws one by one to the fixing device. The fixing device is activated to secure the lead screw. Subsequently, the transfer device is activated to convey the fixing device and the lead screw to the heating end of the annealing machine. The annealing machine heats the lead screw. After heating for a preset time, the transfer device is activated to drive the lead screw back to its initial position. The unloading device is activated to remove the heated lead screw from the fixing device, thus realizing the automated annealing operation of the lead screw. The feeding, transfer, and unloading processes are all completed by the equipment. Operators do not need to approach the annealing machine and lead screw during the high-temperature heating stage, effectively reducing the possibility of high temperature injury to the human body, greatly improving operational safety, and saving time and labor while increasing production efficiency. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of an embodiment of this application.

[0017] Figure 2 This is a schematic diagram illustrating the structure of the limiting rod in the embodiments of this application.

[0018] Figure 3 yes Figure 1 Enlarged diagram of point A in the middle.

[0019] Figure 4 yes Figure 2 Enlarged diagram of point B in the middle.

[0020] Reference numerals: 1. Base; 2. Feeding device; 3. Fixing device; 4. Transplanting device; 5. Unloading device; 6. Inclined seat; 7. Hopper; 8. Limiting cylinder; 9. Feeding cylinder; 10. Limiting rod; 11. Feeding rod; 12. Base frame; 13. Limiting groove; 14. Telescopic cylinder; 15. Pressure rod; 16. Arc groove; 17. Sensor; 18. Connecting rod; 19. Linear module; 20. Rodless cylinder; 21. Parallel finger cylinder; 22. Receiving box; 23. High-frequency annealing machine; 24. Heating coil; 25. Lead screw; 26. Mounting bracket. Detailed Implementation

[0021] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0022] This application discloses a lead screw annealing mechanism.

[0023] Reference Figure 1 and Figure 2 The lead screw annealing mechanism includes a base 1, and an annealing machine is mounted on the base 1. In this embodiment, the annealing machine is a high-frequency annealing machine 23, and the heating end of the high-frequency annealing machine 23 is a heating coil 24. The base 1 is provided with a feeding device 2, a fixing device 3, a transfer device 4, and a discharging device 5. The feeding device 2 is used to feed the lead screws 25 one by one to the fixing device 3. The fixing device 3 is used to fix the lead screws 25. The transfer device 4 transports the fixing device 3 to the heating end of the annealing machine. The discharging device 5 is used to remove the annealed lead screws 25 from the fixing device 3.

[0024] Therefore, when annealing is required for the lead screw 25, the feeding device 2 transports the lead screw 25 one by one to the fixing device 3. The fixing device 3 is activated to fix the lead screw 25. Then, the transfer device 4 is activated to transport the fixing device 3 and the lead screw 25 to the heating end of the annealing machine. The annealing machine heats the lead screw 25. After heating for a preset time, the transfer device 4 is activated to move the lead screw 25 back to its initial position. The unloading device 5 is activated to remove the heated lead screw 25 from the fixing device 3, thus realizing the automated annealing operation of the lead screw 25. The feeding, transfer, and unloading processes are all completed by the equipment. Operators do not need to approach the annealing machine and the lead screw 25 during the high-temperature heating stage, effectively reducing the possibility of high temperature injury to the human body, greatly improving operational safety, and increasing production efficiency while saving time and labor.

[0025] Reference Figure 1 and Figure 2 The feeding device 2 includes an inclined seat 6 bolted to the base 1. A hopper 7 with a diameter matching that of the lead screw 25 is installed on the inclined seat 6. In this embodiment, the diameter of the hopper 7 is greater than the length of one lead screw 25 but less than the length of two lead screws 25. The lead screws 25 are arranged in an array within the hopper 7. The discharge end of the hopper 7 corresponds to the feed end of the fixing device 3. Since the inclined seat 6 is inclined, the arrayed lead screws 25 will roll from the hopper 7 to the feed end of the fixing device 3 under the action of gravity. The inclined seat 6 can be set with different inclinations according to the actual site conditions, thereby controlling the rolling speed of the lead screws 25.

[0026] Reference Figure 1 and Figure 2 The hopper 7 is equipped with a feeding unit for feeding the lead screws 25 one by one. The feeding unit includes a limiting cylinder 8 and a feeding cylinder 9 located at the top of the hopper 7. The feeding cylinder 9 is located between the fixing device 3 and the limiting cylinder 8. A limiting rod 10 is installed at the output end of the limiting cylinder 8, and a feeding rod 11 is installed at the output end of the feeding cylinder 9. The limiting rod 10 and the feeding rod 11 pass through the top plate of the hopper 7. In this embodiment, both the limiting rod 10 and the feeding rod 11 are cylindrical. The distance between the limiting rod 10 and the feeding rod 11 is greater than the diameter of one lead screw 25 and less than the diameter of two lead screws 25. In the initial state, a single lead screw 25 to be fed is located between the limiting rod 10 and the feeding rod 11, and the stacked lead screws 25 are located on the side of the limiting rod 10 away from the feeding rod 11.

[0027] Therefore, when it is necessary to feed the lead screw 25 to the fixing device 3, the limiting cylinder 8 is activated, which drives the limiting rod 10 at the output end of the limiting cylinder 8 to extend, blocking the lead screw 25 stacked in the hopper 7 on the side of the limiting rod 10 away from the feeding rod 11. Then, the feeding cylinder 9 is activated, which drives the feeding rod 11 at the output end of the feeding cylinder 9 to retract. The single lead screw 25 to be fed between the limiting rod 10 and the feeding rod 11 moves to the feeding end of the fixing device 3 under the action of gravity. Then, the limiting cylinder 8 and the feeding cylinder 9 are activated again, which limits the next lead screw 25 to be fed on the side of the limiting rod 10 away from the feeding rod 11 between the limiting rod 10 and the feeding rod 11. The feeding is cyclical until there are no lead screw 25 to be fed in the hopper 7.

[0028] Reference Figure 3 and Figure 4 The fixing device 3 includes a base frame 12 mounted on the base 1. The base frame 12 has a limiting groove 13 corresponding to the position of the material outlet end of the hopper 7. The lead screw 25 to be annealed is mounted in the limiting groove 13. In this embodiment, the limiting groove 13 is a V-shaped groove with a rounded chamfer at the bottom. The limiting groove 13 limits the lead screw 25 to be annealed, reducing the possibility of the lead screw 25 to be annealed shifting position and improving the stability of the lead screw 25 mounted on the base frame 12.

[0029] Reference Figure 3 and Figure 4 The base frame 12 is equipped with a fixing unit for fixing the lead screw 25. The fixing unit includes a telescopic cylinder 14 mounted on the base frame 12. A pressure rod 15 is hinged to the output end of the telescopic cylinder 14. The pressure rod 15 has a connecting hole and a connecting rod 18 that matches the size of the connecting hole. The connecting rod 18 is rotatably connected in the connecting hole. The lead screw 25 is located between the pressure rod 15 and the limiting groove 13. Therefore, when the telescopic cylinder 14 is activated, it drives the pressure rod 15 at the output end to rotate, pressing the lead screw 25 to be annealed against the pressure rod 15 and the limiting groove 13. An arc groove 16 matching the lead screw 25 is opened on the surface of the pressure rod 15 facing the base 1. The arc groove 16 fits against the outer peripheral wall of the lead screw 25 to clamp the lead screw 25, further improving the stability of the pressure rod 15 in limiting the lead screw 25.

[0030] Reference Figure 1 and Figure 2 The top of the hopper 7 is also equipped with a sensor 17 for detecting the presence or absence of the lead screw 25. The sensor 17 is located between the fixing device 3 and the feeding cylinder 9. In this embodiment, the sensor 17 can be an infrared sensor or an optocoupler sensor. If the sensor 17 is an infrared sensor, when the infrared sensor detects that the lead screw 25 has passed by, the infrared sensor will send a signal to the control terminal, and the control terminal will control the telescopic cylinder 14 to clamp the lead screw 25 in conjunction.

[0031] Reference Figure 3 and Figure 4 The transplanting device 4 includes a linear module 19 mounted on a base 1, and a base frame 12 mounted on a slide of the linear module 19. The movement direction of the slide of the linear module 19 corresponds to the heating end of the annealing machine, that is, the lead screw 25 is coaxially arranged with the heating coil 24 of the annealing machine. Therefore, when the linear module 19 is started, the slide of the linear module 19 slides, conveying the end of the lead screw 25 toward the heating coil 24 to the inner edge of the heating coil 24. The annealing machine is started to heat the lead screw 25 at the inner edge of the heating coil 24. After a preset heating time, the linear module 19 is started again, and the slide of the linear module 19 slides, returning the heated lead screw 25 on the slide to its initial position.

[0032] Reference Figure 3 and Figure 4 The feeding device 5 includes a rodless cylinder 20 mounted on the base 1. A mounting frame 26 is bolted to the slide of the rodless cylinder 20. The mounting frame 26 is equipped with a clamping unit for clamping the lead screw 25. The clamping unit includes a parallel finger cylinder 21 mounted on the mounting frame 26. The end of the lead screw 25 to be fed, away from the annealing machine, is located between the two slides of the parallel finger cylinder 21. A receiving box 22 is mounted on the base 1, located between the mounting frame 26 and the base 1. Therefore, after the heated lead screw 25 returns to its initial position, the rodless cylinder 20 is activated, which moves the slide of the rodless cylinder 20 to move the mounting bracket 26 and the parallel finger cylinder 21 to one end close to the lead screw 25. The parallel finger cylinder 21 is then activated, which moves the two slides of the parallel finger cylinder 21 relative to each other to clamp the lead screw 25. Then, the rodless cylinder 20 is activated again to move the lead screw 25 on the mounting bracket 26 to the top of the receiving box 22. The parallel finger cylinder 21 is then activated, which moves the two slides of the parallel finger cylinder 21 in opposite directions to release the restriction on the lead screw 25 and unload the lead screw 25 into the receiving box 22.

[0033] The implementation principle of this application embodiment is as follows: When the lead screw 25 needs to be annealed, the limiting cylinder 8 is activated, which drives the limiting rod 10 at the output end of the limiting cylinder 8 to extend, blocking the lead screw 25 stacked in the hopper 7 on the side of the limiting rod 10 away from the feeding rod 11. Then the feeding cylinder 9 is activated, which drives the feeding rod 11 at the output end of the feeding cylinder 9 to retract. The single lead screw 25 to be fed between the limiting rod 10 and the feeding rod 11 moves into the limiting groove 13 under the action of gravity. Then the limiting cylinder 8 and the feeding cylinder 9 are activated again, which limits the next lead screw 25 to be fed on the side of the limiting rod 10 away from the feeding rod 11 between the limiting rod 10 and the feeding rod 11.

[0034] Start the telescopic cylinder 14, which drives the pressure rod 15 at the output end to rotate, pressing the lead screw 25 to be annealed against the pressure rod 15 and the limiting groove 13; start the linear module 19, which drives the slide of the linear module 19 to slide, conveying the end of the lead screw 25 toward the heating coil 24 to the inner edge of the heating coil 24; start the annealing machine to heat the lead screw 25 at the inner edge of the heating coil 24; after a preset heating time, start the linear module 19 again, which drives the slide of the linear module 19 to slide, returning the heated lead screw 25 on the slide to its initial position; after the heated lead screw 25 returns to its initial position, start... The rodless cylinder 20 is activated, causing its slide to move. This moves the mounting bracket 26 and the parallel finger cylinder 21 closer to the lead screw 25. The parallel finger cylinder 21 is then activated, causing its two slides to move relative to each other and clamp the lead screw 25. The rodless cylinder 20 is then activated again, moving the lead screw 25 from the mounting bracket 26 to the top of the receiving box 22. The parallel finger cylinder 21 is activated again, causing its two slides to move away from each other, releasing the constraint on the lead screw 25 and allowing it to be unloaded into the receiving box 22. This achieves automated annealing of the lead screw 25. In this embodiment, the loading, transferring, and unloading processes are all completed by automated equipment. Operators do not need to approach the annealing machine and the lead screw 25 during the high-temperature heating stage, effectively reducing the possibility of harm from high temperatures, greatly improving operational safety, and saving time and effort while increasing production efficiency.

[0035] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A lead screw annealing mechanism, characterized in that: Includes a base (1), an annealing machine is mounted on the base (1), the base (1) is provided with a feeding device (2), a fixing device (3), a transfer device (4) and a discharging device (5), the feeding device (2) is used to feed the lead screws (25) one by one to the fixing device (3), the fixing device (3) is used to fix the lead screws (25), the transfer device (4) transports the fixing device (3) to the heating end of the annealing machine, and the discharging device (5) is used to remove the annealed lead screws (25) from the fixing device (3) and discharge them.

2. The lead screw annealing mechanism according to claim 1, characterized in that: The feeding device (2) includes an inclined seat (6) set on the base (1). The inclined seat (6) is provided with a hopper (7) that matches the diameter of the lead screw (25). The lead screws (25) are arranged in an array in the hopper (7). The discharge end of the hopper (7) corresponds to the feed end of the fixing device (3). The hopper (7) is provided with a feeding unit that feeds the lead screws (25) into the hopper (7) one by one.

3. The lead screw annealing mechanism according to claim 2, characterized in that: The feeding unit includes a limiting cylinder (8) and a feeding cylinder (9) set on the hopper (7). The feeding cylinder (9) is located between the fixing device (3) and the limiting cylinder (8). The output end of the limiting cylinder (8) is provided with a limiting rod (10), and the output end of the feeding cylinder (9) is provided with a feeding rod (11). The lead screw (25) to be fed is located between the limiting rod (10) and the feeding rod (11). The stacked lead screws (25) are located on the side of the limiting rod (10) away from the feeding rod (11).

4. The lead screw annealing mechanism according to claim 2, characterized in that: The fixing device (3) includes a base frame (12) set on the base (1). The base frame (12) has a limiting groove (13) corresponding to the discharge end of the hopper (7). The lead screw (25) to be annealed is mounted in the limiting groove (13). The base frame (12) is provided with a fixing unit for fixing the lead screw (25).

5. The lead screw annealing mechanism according to claim 4, characterized in that: The fixing unit includes a telescopic cylinder (14) mounted on the base frame (12). The output end of the telescopic cylinder (14) is hinged to a pressure rod (15). The pressure rod (15) has a connecting hole. The pressure rod (15) is provided with a connecting rod (18) that matches the connecting hole. The connecting rod (18) is rotatably connected in the connecting hole. The lead screw (25) is located between the pressure rod (15) and the limiting groove (13).

6. The lead screw annealing mechanism according to claim 5, characterized in that: The pressure rod (15) has an arc groove (16) on its surface facing the base (1) that matches the lead screw (25).

7. The lead screw annealing mechanism according to claim 4, characterized in that: The transplanting device (4) includes a linear module (19) mounted on a base (1), and the base frame (12) is mounted on a slide of the linear module (19). The moving direction of the slide of the linear module (19) corresponds to the heating end of the annealing machine.

8. The lead screw annealing mechanism according to claim 1, characterized in that: The feeding device (5) includes a rodless cylinder (20) mounted on a base (1). The slide of the rodless cylinder (20) is provided with a mounting frame (26), and the mounting frame (26) is provided with a clamping unit for clamping the lead screw (25).

9. The lead screw annealing mechanism according to claim 8, characterized in that: The clamping unit includes a parallel finger cylinder (21) mounted on a mounting frame (26), and the end of the lead screw (25) to be unloaded, which is away from the annealing machine, is located between two slides of the parallel finger cylinder (21).

10. The lead screw annealing mechanism according to claim 8, characterized in that: The base (1) is provided with a receiving box (22), which is located between the mounting frame (26) and the base (1).

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