Screw hardening heat treatment equipment and method thereof

Abstract

The invention relates to the technical field of screw workpiece machining equipment, in particular to screw hardening heat treatment equipment and a method thereof.According to the technical scheme, the screw hardening heat treatment equipment comprises treatment equipment, a double-end control motor is arranged at the bottom of the treatment equipment, and one end of the outer side of the double-end control motor is connected with a transmission belt mechanism; a rotating shaft is connected to the upper end of the transmission belt mechanism, a screw fixing piece is installed on the rotating shaft, and multiple sets of screw fixing openings are formed in the front end and the rear end of the screw fixing piece correspondingly. According to the screw hardening heat treatment equipment, the screw fixing piece capable of controlling rotation is arranged in the screw hardening heat treatment equipment, multiple sets of screws are fixed in the front row and the rear row, one set of screws is replaced with another set of screw workpieces after heat treatment is completed, and when the screw workpieces are converted, the machining platform moves downwards to leave sufficient conversion space for the screw workpieces; and when the machining platform moves to the lower end, overturning of the platform is achieved through the effect of the overturning mechanism, and therefore the second platform is replaced upwards to heat the second set of screw workpieces.

Description

Technical Field

[0001] The present invention relates to the technical field of screw workpiece processing equipment, and specifically relates to a screw hardening heat treatment equipment and its method. Background Technique

[0002] The screw hardening heat treatment equipment and its method involve the key technology of fastener manufacturing, which is of great significance for improving the mechanical properties of screws and extending their service life. A flame sprayer is used to locally or integrally heat the screws. The flame sprayer usually mixes fuel gas and combustion-supporting air and then ignites to generate a high-temperature flame, which is used to quickly heat the screws to the required temperature, and then quickly cool them subsequently, so as to meet the hardening requirements of the screw workpieces. The hardening heat treatment can improve the wear resistance of the screw surface, enabling it to better resist friction and wear during use. This helps to extend the service life of the screws and reduce the frequency of replacement and repair.

[0003] The following defects still exist in the prior art during use:

[0004] When the screw hardening heat treatment equipment in the prior art performs screw hardening heat treatment, the platform for fixing the screw workpieces cannot effectively heat-treat the screws well. Generally, a group of screw workpieces are processed and then replaced for processing. Due to the fixation of the flame spraying heating port, the screw workpieces cannot be replaced smoothly, and the overall heat treatment efficiency is low. Moreover, the continuously heating flame spraying port cannot operate for a long time. If high-temperature heating is carried out for a long time, the flame spraying port and the platform for installing the flame spraying port will be damaged. Therefore, the heat treatment of the screw workpieces cannot be made more efficient. At the same time, when the flame spraying port continuously heats the surface of the screw workpieces, impurities and the like may fall on the processing platform, and additional cleaning by employees is required.

[0005] In view of this, we propose a screw hardening heat treatment equipment and its method to solve the existing problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a screw hardening heat treatment equipment and its method to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present invention provides the following technical solutions: A screw hardening heat treatment device and method, including a processing device, a double-end control motor is provided at the bottom of the processing device, a transmission belt mechanism is connected to one outer end of the double-end control motor, a rotating shaft is connected to the upper end of the transmission belt mechanism, a screw fixing member is installed on the rotating shaft, multiple screw fixing ports are provided at the front and rear ends of the screw fixing member, a control rod is connected to one inner end of the double-end control motor, two fixed gears are installed on the control rod, the fixed gears are meshed with a telescopic control member, a platform turning mechanism is installed at the upper end of the telescopic control member, and a processing platform is provided on the platform turning mechanism;

[0008] The double-end control motor drives the screw fixing member to rotate through the transmission belt mechanism, so that the screw processing station is switched, and the double-end control motor controls the processing platform through the telescopic control member to move the processing platform up and down to reserve space for the station conversion of the screw fixing member.

[0009] Preferably, the platform turning mechanism includes a frame and a moving frame, the moving frame is slidably installed at the lower end of the frame, an installation block is provided downward at the upper end of the moving frame, a moving support rod is provided on the frame, a moving block is slidably installed on the moving support rod, an installation disk is provided on the moving block, an installation shaft and a pin shaft are provided on the installation disk, the processing platform includes a first platform, a second platform and a connecting platform plate, and the first platform and the second platform are respectively arranged at the upper and lower ends of the connecting platform plate;

[0010] During the up and down movement of the processing platform, the platform rotates simultaneously, so as to realize the replacement of the first platform and the second platform, so as to ensure the cleanliness of the platform and avoid damage to the platform caused by excessive heating.

[0011] Preferably, the transmission belt mechanism includes a first rotating shaft, a second rotating shaft and a transmission belt, the double-end control motor is connected to the first rotating shaft at one outer side, the screw fixing member is connected to the second rotating shaft at one outer side, and a transmission belt is connected between the first rotating shaft and the second rotating shaft.

[0012] Preferably, the first platform and the second platform are both equidistantly provided with flame nozzles, and an emergency stop button is provided on the outer side of the first platform and the second platform.

[0013] Preferably, a limit installation shaft is provided at one side of the rear end of the moving block, an auxiliary positioning rod is provided upward at the rear end of the moving block, and a positioning spring is provided between the auxiliary positioning rod and the limit installation shaft.

[0014] Preferably, a circle of internal teeth is arranged inside the telescopic control member, and the telescopic control member is meshed and connected with an internal gear through the internal teeth. A connecting shaft is installed on the internal gear, the connecting shaft is connected with a mounting rod, the mounting rod is connected with a telescopic rod upwards, and the telescopic rod is connected with a moving block.

[0015] Preferably, a limiting block is arranged on the telescopic control member, and the mounting rod penetrates through the limiting block and extends upwards.

[0016] Preferably, a top frame is arranged at the top of the processing device, and bottom support feet are arranged at the bottom of the processing device.

[0017] Preferably, a plurality of groups of shielding plates are arranged on the front surface of the processing device, and a slag collection cavity is arranged at the rear end of the bottom of the processing device.

[0018] A method for heat treatment of screw hardening, based on the screw hardening heat treatment equipment described in any one of the above claims, is characterized by including the following steps:

[0019] S1: Align the screw workpiece with the screw fixing opening on the screw fixing piece to fix the screw workpiece.

[0020] S2: By adjusting the processing position, bring the screw fixing opening containing the screw workpiece close to the flame spraying opening at the upper end of the processing platform.

[0021] S3: Heat the screw through the flame spraying opening, so that the metal structure inside the screw undergoes a phase change to form high-hardness martensite.

[0022] S4: After the screw is heated, quickly collect it and quench and cool it to fix the martensite structure, thereby improving the hardness of the screw.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0024] In the screw hardening heat treatment equipment of the present invention, a rotatable screw fixing member is provided, and multiple groups of screws are fixed in the front and rear rows. After one group of heat treatment is completed, another group of screw workpieces is replaced. While the screw workpieces are being switched, the processing platform moves downward to leave sufficient switching space for the screw workpieces. And when the processing platform moves to the lower end, through the action of the flipping mechanism, the platform is flipped, so as to replace the second platform upwards to heat the second group of screw workpieces, avoiding long-term heating of one group of heating treatment ports, which is more conducive to the maintenance of the heating mechanism, improving the overall working efficiency. And when the platform is flipped, a waste material cavity for collecting slag is placed below at the same time, which can keep the platform clean to a certain extent and facilitate subsequent processing by the staff. Description of the Drawings

[0025] Figure 1Schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 2 Front view structure schematic diagram of the present invention;

[0027] Figure 3 Schematic diagram of the structure at the rear end of the front view of the present invention;

[0028] Figure 4 Schematic diagram of the structure of the platform flipping mechanism of the present invention;

[0029] Figure 5 Schematic diagram of the structure of the platform flipping mechanism of the present invention;

[0030] Figure 6 Schematic diagram of the structure of the processing platform of the present invention;

[0031] Figure 7 Schematic diagram of the structure of the telescopic control member of the present invention.

[0032] In the figure: 1, processing equipment; 2, processing platform; 3, flame nozzle; 4, rotating shaft; 5, screw fixing port; 6, screw fixing member; 7, emergency stop button; 8, top frame; 9, second rotating shaft; 10, conveyor belt; 11, first rotating shaft; 12, bottom support feet; 13, double-end control motor; 14, control rod; 15, fixed gear; 16, telescopic control member; 17, baffle; 18, slag collection chamber; 19, auxiliary positioning rod; 20, frame; 21, moving block; 22, mounting block; 23, positioning spring; 24, moving support rod; 25, moving frame; 26, limit mounting shaft; 27, telescopic rod; 28, mounting disc; 29, pin shaft; 30, mounting shaft; 31, connecting platform plate; 32, first platform; 33, second platform; 34, limit block; 35, connecting shaft; 36, internal gear; 37, mounting rod. Detailed implementation manners

[0033] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] Embodiment 1

[0035] As Figures 1-7As shown in the figure, a screw hardening heat treatment device and method proposed by the present invention include a processing device 1. A double-end control motor 13 is provided at the bottom of the processing device 1. One end of the outer side of the double-end control motor 13 is connected to a belt transmission mechanism. The upper end of the belt transmission mechanism is connected to a rotating shaft 4. A screw fixing member 6 is installed on the rotating shaft 4. A plurality of groups of screw fixing ports 5 are provided at the front and rear ends of the screw fixing member 6. One end of the inner side of the double-end control motor 13 is connected to a control rod 14. Two fixed gears 15 are installed on the control rod 14. The fixed gears 15 are meshed with a telescopic control member 16. A platform flipping mechanism is installed at the upper end of the telescopic control member 16. A processing platform 2 is provided on the platform flipping mechanism;

[0036] The double-end control motor 13 controls the rotation of the rotating shaft 4 through the transmission of the belt transmission mechanism, and controls the flipping of the screw fixing member 6 through the rotation of the rotating shaft 4. Screw workpieces are installed on both the front and rear groups of the screw fixing member 6. Therefore, the double-end control motor 13 is used to control the conversion of different groups of screw workpieces, so that after different screw workpieces are rotated, they can all be placed at the position where the heat treatment port is located. And the other side of the double-end control motor 13 will control the rotation of the control rod 14, thereby driving the fixed gear 15 to rotate, and then driving the telescopic control member 16 to work. When the telescopic control member 16 works and drives the platform to move up and down, when the platform moves downward, the screw fixing member 6 just has enough space to flip, without causing interference to the flipping work, providing sufficient space.

[0037] The double-end control motor 13 drives the screw fixing member 6 to rotate through the belt transmission mechanism, so as to convert the screw processing station. And the double-end control motor 13 controls the processing platform 2 through the telescopic control member 16 to move the processing platform 2 up and down to reserve space for the station conversion of the screw fixing member 6.

[0038] Furthermore, the platform flipping mechanism includes a frame 20 and a moving frame 25. The moving frame 25 is slidably installed at the lower end of the frame 20. An installation block 22 is provided downward at the upper end of the moving frame 25. A moving support rod 24 is provided on the frame 20. A moving block 21 is slidably installed on the moving support rod 24. An installation disk 28 is provided on the moving block 21. An installation shaft 30 and a pin shaft 29 are provided on the installation disk 28. The processing platform 2 includes a first platform 32, a second platform 33 and a connecting platform plate 31. The first platform 32 and the second platform 33 are respectively arranged at the upper and lower ends of the connecting platform plate 31;

[0039] When the moving block 21 moves downward, the lower end pin shaft 29 on the moving block 21 will touch the lower cross frame of the moving frame 25, so that the lower end pin shaft 29 is subjected to force, and the mounting shaft 30 and the upper end pin shaft 29 will move out from the middle of the lower end of the moving frame 25. Through the blocking and acting force of the left cross frame at the lower end of the moving frame 25 on the lower end pin shaft 29, the overall mounting shaft 30 and the pin shaft 29 are flipped by 180° based on the mounting disc 28. Because the mounting shaft 30 is connected with a connecting platform plate 31 on the outer side, the connecting platform plate 31 follows the mounting shaft 30 to flip, realizing the replacement of the first platform 32 and the second platform 33. After the flip, the mounting disc 28 and the moving block 21 move upward. When the upper pin shaft 29 touches the mounting block 22, the force applied to the mounting block 22 will be dispersed in the horizontal direction to drive the moving frame 25 to slide horizontally to a certain extent on the frame 20. After the moving frame 25 slides horizontally, the right cross frame at the lower end of the moving frame 25 can be located in the vertical direction where the pin shaft 29 is at this moment. In the subsequent movement, the moving block 21 moves downward again, and the right cross frame at the lower end of the moving frame 25 blocks and applies force to the lower end pin shaft 29 at this moment, and the next platform flip can be carried out. The peripheral flame spraying control system controls the opening and closing of the flame spraying ports on the first platform 32 and the second platform 33 in a cycle, and the platform at the upper end performs flame spraying and heating operations.

[0040] During the up and down movement of the processing platform 2, the platform rotates simultaneously, so as to realize the replacement of the first platform 32 and the second platform 33, so as to ensure the cleanliness of the platform and avoid damage to the platform caused by overheating.

[0041] Realizing the flip of the processing platform 2 can effectively ensure the continuous progress of the heat treatment process and also avoid damage to the processing platform 2 and the heat treatment ports under continuous processing.

[0042] Further, the belt transmission mechanism includes a first rotating shaft 11, a second rotating shaft 9 and a transmission belt 10. The double-end control motor 13 is connected with the first rotating shaft 11 on the outer end side, the screw fixing member 6 is connected with the second rotating shaft 9 on the outer end side, and the transmission belt 10 is connected between the first rotating shaft 11 and the second rotating shaft 9.

[0043] The sizes of the first rotating shaft 11 and the second rotating shaft 9 are different, so as to realize speed change with different sizes, and through the transmission belt 10, it is ensured that the screw fixing member 6 can be smoothly driven by the double-end control motor 13.

[0044] Further, the first platform 32 and the second platform 33 are both equidistantly provided with flame spraying ports 3, and an emergency stop button 7 is arranged on the outer side of the first platform 32 and the second platform 33.

[0045] The flame nozzle 3 is used to eject high-temperature flames to achieve the heat treatment of screws. The emergency stop button 7 is close to the outside of the processing platform 2. In case of necessity, the operation of the flame nozzle 3 can be stopped by the emergency stop button 7.

[0046] Furthermore, a limit mounting shaft 26 is provided on one side of the rear end of the moving block 21. An auxiliary positioning rod 19 is provided upward at the rear end of the moving block 21. A positioning spring 23 is provided between the auxiliary positioning rod 19 and the limit mounting shaft 26.

[0047] The limit mounting shaft 26 is axially connected to the mounting disc 28. The overall mounting disc 28 can be pulled by the positioning spring 23 to prevent it from flipping during movement, and it can assist the pin shaft 29 to flip smoothly when it encounters the cross frames on both sides of the lower end of the moving frame 25.

[0048] Furthermore, a circle of internal teeth is provided inside the telescopic control member 16. The telescopic control member 16 is meshed and connected with an internal gear 36 through the internal teeth. A connecting shaft 35 is installed on the internal gear 36. The connecting shaft 35 is connected to a mounting rod 37. The mounting rod 37 is connected upward to a telescopic rod 27. The telescopic rod 27 is connected to the moving block 21.

[0049] The external teeth on the outside of the telescopic control member 16 are meshed and connected with the fixed gear 15. Driven by the fixed gear 15, the telescopic control member 16 rotates. At the same time, the internal gear 36 rotates circumferentially inside the telescopic control member 16 to control the mounting rod 37 to drive the telescopic rod 27 to expand and contract.

[0050] Furthermore, a limit block 34 is provided on the telescopic control member 16. The mounting rod 37 passes through the limit block 34 and extends upward.

[0051] The limit block 34 is used to fix the moving path of the mounting rod 37 so that the mounting rod 37 moves in the vertical direction.

[0052] Furthermore, a top frame 8 is provided at the top of the processing device 1, and bottom support feet 12 are provided at the bottom of the processing device 1.

[0053] The top frame 8 is used to place the screw fixing member 6, and a slot is opened at the rear end of the top frame 8 to facilitate the installation and removal of screw workpieces. The bottom support feet 12 are used to support the overall heat treatment device 1.

[0054] Furthermore, multiple groups of shielding plates 17 are provided on the front of the processing device 1, and a slag collection chamber 18 is provided at the rear end of the bottom of the processing device 1.

[0055] The shielding plates 17 are used to cover the internal mechanisms of the device to avoid damage. The slag collection chamber 18 is used to collect the broken slag that falls during the flipping of the platform, facilitating the subsequent cleaning work by the staff.

[0056] Example 2

[0057] A method for heat treatment of screw hardening, based on the screw hardening heat treatment equipment described in any one of the above claims, is characterized by including the following steps:

[0058] S1: Align the screw workpiece with the screw fixing hole on the screw fixture and fix the screw workpiece;

[0059] S2: By adjusting the processing position, bring the screw fixing hole containing the screw workpiece close to the flame outlet at the upper end of the processing platform;

[0060] S3: Heat the screw through the flame outlet, so that the metal structure inside the screw undergoes a phase change to form martensite with high hardness;

[0061] S4: Collect the screw quickly after heating and quench it for cooling to fix the martensite structure, thereby improving the hardness of the screw.

[0062] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A screw hardening heat treatment device, comprising a treatment device (1), characterized in that: A double-end control motor (13) is provided at the bottom of the processing equipment (1), an outer end of the double-end control motor (13) is connected to a transmission belt mechanism, an upper end of the transmission belt mechanism is connected to a rotating shaft (4), a screw fixing member (6) is installed on the rotating shaft (4), and a plurality of screw fixing ports (5) are provided at the front and rear ends of the screw fixing member (6), an inner end of the double-end control motor (13) is connected to a control rod (14), two groups of fixed gears (15) are installed on the control rod (14), and the fixed gears (15) are meshed and connected with a telescopic control member (16), a platform turning mechanism is installed on the upper end of the telescopic control member (16), and a processing platform (2) is provided on the platform turning mechanism; The double-end control motor (13) drives the screw fixing member (6) to rotate through a transmission belt mechanism so that the screw processing station is switched, and the double-end control motor (13) controls the processing platform (2) through a telescopic control member (16) so that the processing platform (2) moves up and down to reserve space for the station switching of the screw fixing member (6).

2. The hardening heat treatment equipment for screws according to claim 1, characterized in that: The platform turning mechanism includes a frame (20) and a moving frame (25), the moving frame (25) is slidably mounted on the lower end of the frame (20), the upper end of the moving frame (25) is provided with a mounting block (22) facing downward, the frame (20) is provided with a moving support rod (24), the moving block (21) is slidably mounted on the moving support rod (24), the moving block (21) is provided with a mounting plate (28), the mounting plate (28) is provided with a mounting shaft (30) and a pin (29), the processing platform (2) includes a first platform (32), a second platform (33) and a connecting platform plate (31), the first platform (32) and the second platform (33) are respectively provided at the upper and lower ends of the connecting platform plate (31); The processing platform (2) rotates while moving up and down, thereby achieving the replacement of the first platform (32) and the second platform (33), thereby ensuring the cleanliness of the platform and avoiding damage to the platform due to overheating.

3. A screw hardening heat treatment device according to claim 1, characterized in that: The transmission belt mechanism comprises a first rotating shaft (11), a second rotating shaft (9) and a transmission belt (10); the double-end control motor (13) is connected to the first rotating shaft (11) on the outer end side; the screw fixing member (6) is connected to the second rotating shaft (9) on the outer end side; and the transmission belt (10) is connected between the first rotating shaft (11) and the second rotating shaft (9).

4. A screw hardening heat treatment device according to claim 1, characterized in that: Flame ports (3) are equidistantly arranged on the first platform (32) and the second platform (33), and emergency stop buttons (7) are arranged on the outer sides of the first platform (32) and the second platform (33).

5. A screw hardening heat treatment device according to claim 2, characterized in that: A limited mounting shaft (26) is provided on one side of the rear end of the moving block (21), an auxiliary positioning rod (19) is provided upwardly at the rear end of the moving block (21), and a positioning spring (23) is provided between the auxiliary positioning rod (19) and the limited mounting shaft (26).

6. A screw hardening heat treatment device according to claim 2, characterized in that: An internal gear is provided inside the telescopic control member (16), and the telescopic control member (16) is meshed with an internal gear (36) through the internal gear. A connecting shaft (35) is installed on the internal gear (36), the connecting shaft (35) is connected with a mounting rod (37), the mounting rod (37) is upwardly connected with a telescopic rod (27), and the telescopic rod (27) is connected with a moving block (21).

7. A screw hardening heat treatment device according to claim 6, characterized in that: A limiting block (34) is provided on the telescopic control member (16), and the mounting rod (37) penetrates through the limiting block (34) and extends upward.

8. A screw hardening heat treatment device according to claim 1, characterized in that: A top frame (8) is provided at the top of the processing device (1), and bottom support feet (12) are provided at the bottom of the processing device (1).

9. A screw hardening heat treatment device according to claim 1, characterized in that: A plurality of groups of shielding plates (17) are provided on the front surface of the processing device (1), and a slag collection cavity (18) is provided at the rear end of the bottom of the processing device (1).

10. A method for heat treatment of screw hardening, based on the screw hardening heat treatment equipment described in any one of the above claims 1-9, characterized in that, Comprising the following steps: S1: Align the screw workpiece with the screw fixing opening on the screw fastener and fix the screw workpiece; S2: By adjusting the processing position, the screw fixing opening containing the screw workpiece is brought close to the flame spraying opening at the upper end of the processing platform; S3: Heat the screw through the flame spraying opening, so that the metal structure inside the screw undergoes a phase change to form high-hardness martensite; S4: After the screw is heated, it is quickly collected and quenched and cooled to fix the martensite structure, thereby improving the hardness of the screw.

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