A device for heat treating parts of a machine tool

Abstract

The application provides a part heat treatment device for a cutting machine tool in the field of part cutting processing equipment, which is characterized by a rotating rod with a cutting mechanism installed at one end and a heating cylinder installed at the other end, rotation of the rotating rod realizing conversion of the cutting mechanism and the heating cylinder, facilitating heat treatment of the part during the cutting process; meanwhile, through the rotating bearing disc, the lifting insulating heating cylinder and the quenching cylinder installed below the bearing disc, three kinds of heat treatment of annealing, normalizing and quenching of the part are realized, the needs of different heat treatments of the part for the cutting operation are met, the adaptability is good, the part does not need to be frequently transferred, through the rotating bearing disc, the liquid extraction piston cylinder for injecting the quenching agent into the insulating heating cylinder, the quenching agent is continuously extracted into the insulating heating cylinder for pouring and infiltration of the part during the quenching process, the contact effect of the quenching agent and the part is further improved, and the quenching is more uniform and sufficient.

Description

Technical Field

[0001] This invention relates to the field of parts cutting and processing equipment, and particularly to a parts heat treatment device for cutting machine tools. Background Technology

[0002] Machining refers to the process of removing excess material from the surface of a workpiece using a tool with a regular shape, thereby ensuring that the workpiece meets design requirements in terms of geometry, dimensional accuracy, surface roughness, and surface layer quality. Before machining or during multiple machining operations, heat treatment is required to improve the workpiece's machinability.

[0003] In traditional machining processes, when heat treatment is required, the parts need to be removed from the machining tool and placed into a furnace for heat treatment. This involves transferring the parts between the machining tool and the furnace, making the process cumbersome.

[0004] This application provides a heat treatment apparatus for parts of a cutting machine tool, which integrates a heat treatment mechanism into the cutting machine tool. Summary of the Invention

[0005] The purpose of this application is to solve the problem of needing to transfer parts back and forth when heat treatment is required in traditional cutting processes; compared with the prior art, it provides a heat treatment device for parts of cutting machine tools, which can realize the rapid switching between cutting operations and heat treatment processing on the cutting machine tool without the need to transfer parts, thus simplifying the operation.

[0006] A heat treatment apparatus for parts in a machine tool includes a machine base, a support plate mounted on the machine base, and a clamping mechanism for holding parts on the support plate. A rotating rod is positioned above the support plate, with a cutting mechanism mounted at one end of the rotating rod, connected to the rotating rod via a first lead screw assembly. An insulating heating cylinder is mounted at the other end of the rotating rod away from the cutting mechanism, connected to the rotating rod via a second lead screw assembly. A rotating cylinder is fixedly connected to the middle of the rotating rod, passing through and rotatably connected to a support frame. A worm gear is sleeved on the rotating cylinder, meshing with a worm, which is connected to a first motor.

[0007] An installation cylinder is fitted onto the outer side of the bearing plate, and the installation cylinder is fixedly connected to the machine tool base. A quenching cylinder installed on the inner side of the machine tool base is connected below the installation cylinder, and the quenching cylinder is filled with quenching agent. An installation shaft extending to the outer side of the installation cylinder is fixedly connected to the side wall of the bearing plate. The installation shaft is connected to a vertical shaft through a transmission gear. The vertical shaft is connected to a transmission shaft through a transmission gear. The transmission shaft is connected to a second motor. The insulating heating cylinder is a cylindrical structure with one end open. An electromagnetic heating coil is nested inside the insulating heating cylinder.

[0008] Furthermore, the side of the insulating heating cylinder away from the opening is connected to a liquid injection pipe, which is connected to a liquid extraction piston cylinder. The liquid extraction piston cylinder is connected to a liquid extraction pipe, which is connected to the quenching cylinder. A piston is nested inside the liquid extraction piston cylinder, and the piston is connected to a power mechanism.

[0009] Preferably, the machine tool base is a hollow box structure, the mounting cylinder is a cylindrical structure with openings at both the top and bottom, the mounting cylinder is installed on the upper end face of the machine tool base, the quenching cylinder is installed on the inner side of the machine tool base and is positioned opposite to the mounting cylinder, and a through circular hole is provided on the upper end face of the machine tool base to connect the mounting cylinder and the quenching cylinder.

[0010] Preferably, the first lead screw assembly and the second lead screw assembly have the same structure and are arranged in a mirror image. The first lead screw assembly includes a lifting block, a vertical lead screw threadedly connected to the lifting block, and a lead screw motor connected to the vertical lead screw; the rotating rod is provided with a vertical slide groove for the lifting block to slide.

[0011] Preferably, the inner wall of the insulating heating cylinder is provided with a jacket cavity, and the electromagnetic heating coil is nested in the jacket cavity in a spiral shape. The two ends of the electromagnetic heating coil extend to the outside of the insulating heating cylinder and are connected to an electromagnetic heating controller.

[0012] Preferably, the clamping mechanism includes a set of opposing clamping blocks that pass through the bearing plate. The lower part of the clamping blocks is nested with a slide rail installed on the lower end face of the bearing plate. The slide rail is provided with a bidirectional lead screw that passes through the clamping blocks and is threadedly connected to the clamping blocks. The bidirectional lead screw extends to the outside of the slide rail and is connected to a transmission rod through a transmission gear set. The transmission rod extends to the top of the bearing plate and is fixedly connected to a knob.

[0013] Preferably, the bidirectional lead screw is set in a direction perpendicular to the direction of the mounting shaft, the vertical shaft passes through the top plate of the machine tool base and is rotatably connected to it, and the second motor is mounted on the rear wall of the machine tool base.

[0014] Preferably, the carrier plate has uniformly distributed mesh holes, which are through holes that penetrate the carrier plate.

[0015] Preferably, the inner diameter of the insulating heating cylinder is equal to the inner diameter of the mounting cylinder, and a stepped groove is provided at the upper opening of the mounting cylinder for inserting the insulating heating cylinder.

[0016] Preferably, the power mechanism includes a snap-fit ​​frame fixedly connected to the piston, the snap-fit ​​frame snapping with an eccentric grooved disc, and the eccentric grooved disc being sleeved and fixed to the drive shaft.

[0017] Compared with the prior art, the advantages of this invention are:

[0018] (1) The present invention uses a rotating rod with a cutting mechanism installed at one end and a heating cylinder installed at the other end. The rotating rod can switch between the cutting mechanism and the heating cylinder, which facilitates heat treatment of parts during the cutting process. At the same time, the rotating support plate, the lifting and lowering insulating heating cylinder and the quenching cylinder installed below the support plate can realize three heat treatments of the parts: annealing, normalizing and quenching, which can meet the different heat treatment requirements of cutting operations. It has good adaptability and does not require frequent transfer of parts.

[0019] (2) The present invention uses a rotating bearing plate and a pumping piston cylinder to inject quenching agent into the insulating heating cylinder. During the quenching process, the quenching agent is continuously pumped into the insulating heating cylinder to pour and wet the parts, which further improves the contact effect between the quenching agent and the parts, making the quenching more uniform and sufficient.

[0020] (3) The present invention uses a support plate with mesh openings, a support plate that abuts and cooperates with each other and an insulating heating cylinder to enable the parts to be rotated, immersed and poured in a closed space composed of the mounting cylinder and the quenching cylinder for quenching operations, thus avoiding the outflow of quenching agent.

[0021] (4) The present invention uses a liquid-drawing piston cylinder linked with the support plate to make the pouring operation and the rotation and immersion of the support plate proceed synchronously. The driving structure is simple and no control structure is required. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention from a frontal perspective;

[0023] Figure 2 This is a three-dimensional structural diagram of the present invention from a rear view.

[0024] Figure 3 This is a schematic diagram of the longitudinal cross-sectional structure of the present invention;

[0025] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0026] Figure 5 This is a cross-sectional view of the insulating heating cylinder in this invention;

[0027] Figure 6 This is a schematic diagram of the assembly structure of the bearing plate and the mounting cylinder in this invention;

[0028] Figure 7 This is a schematic diagram of the clamping mechanism in this invention;

[0029] Figure 8 This is a schematic diagram of the assembly structure of the rotating rod in this invention;

[0030] Figure 9 This is a schematic diagram of the assembly structure of the liquid-drawing piston cylinder in this invention;

[0031] Figure 10 for Figure 3 A magnified structural diagram at point B in the middle.

[0032] The following are the labels in the diagram: 1. Machine base; 2. Bearing plate; 3. Clamping mechanism; 301. Clamping block; 302. Slide rail; 303. Double-acting lead screw; 304. Transmission rod; 305. Knob; 4. Rotating rod; 5. Cutting mechanism; 6. First lead screw assembly; 7. Insulating heating cylinder; 701. Jacket cavity; 702. Electromagnetic heating coil; 703. Electromagnetic heating controller; 8. Second lead screw assembly; 9. Rotating cylinder; 10. Support frame; 11. Worm gear; 12. Worm; 13. First motor; 14. Mounting cylinder; 15. Mounting shaft; 16. Vertical shaft; 17. Transmission shaft; 18. Second motor; 19. Quenching cylinder; 20. Liquid extraction pipe; 21. Liquid extraction piston cylinder; 22. Liquid injection pipe; 23. Piston; 24. Snap-fit ​​frame; 25. Eccentric grooved plate. Detailed Implementation

[0033] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0034] Example 1:

[0035] This invention provides a heat treatment apparatus for parts used in machine tools. Please refer to [link / reference]. Figure 1-9 The system includes a machine tool base 1, a bearing plate 2 mounted on the machine tool base 1, and a clamping mechanism 3 for clamping parts on the bearing plate 2; a rotating rod 4 is located above the bearing plate 2, and a cutting mechanism 5 is mounted on one end of the rotating rod 4, which is connected to the rotating rod 4 via a first lead screw assembly 6; an insulating heating cylinder 7 is mounted on the other end of the rotating rod 4 away from the cutting mechanism 5, and the insulating heating cylinder 7 is connected to the rotating rod 4 via a second lead screw assembly 8; a rotating cylinder 9 is fixedly connected to the middle of the rotating rod 4, and a support frame 10 passes through the rotating cylinder 9 and is rotatably connected to it; a worm gear 11 is sleeved on the rotating cylinder 9, and a worm 12 is meshed with the worm gear 11, which is connected to a first motor 13;

[0036] An mounting cylinder 14 is sleeved on the outer side of the bearing plate 2. The mounting cylinder 14 is fixedly connected to the machine tool base 1. A quenching cylinder 19 installed on the inner side of the machine tool base 1 is connected below the mounting cylinder 14. The quenching cylinder 19 is filled with quenching agent. An mounting shaft 15 extending to the outer side of the mounting cylinder 14 is fixedly connected to the side wall of the bearing plate 2. The mounting shaft 15 is connected to a vertical shaft 16 through a transmission gear. The vertical shaft 16 is connected to a transmission shaft 17 through a transmission gear. The transmission shaft 17 is connected to a second motor 18.

[0037] The insulating heating cylinder 7 is a cylindrical structure with one end open, and an electromagnetic heating coil 702 is nested inside the insulating heating cylinder 7.

[0038] Specifically, during heat treatment of the parts, the first motor 13 is started. The first motor 13 drives the rotating cylinder 9 to rotate via the worm gear 12 and worm wheel 11. The rotating cylinder 9 drives the rotating rod 4 to rotate 180 degrees, causing the insulating heating cylinder 7 to move above the parts to be treated. Then, the second lead screw assembly 8 is started, driving the insulating heating cylinder 7 to move downwards and abut against the mounting cylinder 14, so that the parts are placed inside the insulating heating cylinder 7. Then, the electromagnetic heating coil 702 is started to heat the parts. After heat treatment, there are three cases: when annealing is required, the electromagnetic heating coil 702 slowly cools down to perform annealing; when normalizing is required, the second lead screw assembly 8 drives the insulating heating cylinder 7 upwards to completely detach the insulating heating cylinder 7 from the parts, allowing the parts to cool naturally in the air to achieve normalizing; when quenching is required... During processing, the second lead screw assembly 8 drives the insulating heating cylinder 7 to move up and down, causing the insulating heating cylinder 7 to detach from the part. Then, the second motor 18 is started. The second motor 18 drives the mounting shaft 15 to rotate through the transmission shaft 17 and the vertical shaft 16. The mounting shaft 15 drives the bearing plate 2 inside the mounting cylinder 14 to rotate circumferentially, causing the bearing plate 2 to rotate the part fixed on it into the quenching cylinder 19. This allows the part to be immersed in the quenching agent inside the quenching cylinder 19, achieving the quenching treatment of the part. The above heat treatment achieves the thermal modification of the part, realizing multiple heat treatments during the cutting process, meeting the needs of modifying the performance of the part during the cutting process, improving the cutting performance, and eliminating the need to transfer the part to a furnace for heat treatment during the cutting process. It should be noted that the cutting mechanism 5 includes a cutting tool and a power source, which are existing technologies and will not be described in detail in this application.

[0039] Please see Figure 3 In this embodiment, the machine tool base 1 is a hollow box structure, the mounting cylinder 14 is a cylindrical structure with openings at both the top and bottom ends, the mounting cylinder 14 is mounted on the upper end surface of the machine tool base 1, the quenching cylinder 19 is mounted on the inner side of the machine tool base 1 and is arranged opposite to the mounting cylinder 14, and the upper end surface of the machine tool base 1 is provided with a through circular hole that connects the mounting cylinder 14 and the quenching cylinder 19.

[0040] Specifically, this facilitates the quenching operation when the bearing plate 2 is rotated.

[0041] Please see Figure 3 and Figure 8 In this embodiment, the first lead screw assembly 6 and the second lead screw assembly 8 have the same structure and are arranged in a mirror image. The first lead screw assembly 6 includes a lifting block, a vertical lead screw threadedly connected to the lifting block, and a lead screw motor connected to the vertical lead screw; the rotating rod 4 is provided with a vertical slide groove for the lifting block to slide.

[0042] Specifically, this facilitates control over the contact between the cutting mechanism 5 and the insulated heating cylinder 7 and the parts.

[0043] Please see Figure 5 In this embodiment, the inner wall of the insulating heating cylinder 7 is provided with a jacket cavity 701, and the electromagnetic heating coil 702 is nested in the jacket cavity 701 in a spiral shape. The two ends of the electromagnetic heating coil 702 extend to the outside of the insulating heating cylinder 7 and are connected to an electromagnetic heating controller 703.

[0044] Specifically, to facilitate the control of the heating process of the electromagnetic heating coil 702 and the slow cooling process during annealing, it should be noted that the electromagnetic heating controller 703 is existing technology, and those skilled in the art can select and match it as needed. This application will not elaborate further.

[0045] Please see Figure 7 In this embodiment, the clamping mechanism 3 includes a set of clamping blocks 301 that pass through the bearing plate 2 and are arranged opposite to each other. The lower part of the clamping block 301 is nested with a slide rail 302 installed on the lower end face of the bearing plate 2. The slide rail 302 is provided with a bidirectional lead screw 303 that passes through the clamping block 301 and is threadedly connected to the clamping block 301. The bidirectional lead screw 303 extends to the outside of the slide rail 302 and is connected to a transmission rod 304 through a transmission gear set. The transmission rod 304 extends to the top of the bearing plate 2 and is fixedly connected to a knob 305.

[0046] Specifically, by turning the knob 305, the knob 305 drives the bidirectional lead screw 303 to rotate via the transmission rod 304. The bidirectional lead screw 303 drives the clamping block 301 to move in opposite directions or away from each other, thereby clamping and fixing the parts placed on the carrier plate 2.

[0047] Please see Figure 6 and Figure 7 In this embodiment, the bidirectional lead screw 303 is set in a direction perpendicular to the setting direction of the mounting shaft 15, the vertical shaft 16 passes through the top plate of the machine tool base 1 and is rotatably connected to it, and the second motor 18 is mounted on the rear wall of the machine tool base 1.

[0048] Specifically, when the bearing plate 2 drives the part to rotate, the part is not easy to slip off the clamping block 301.

[0049] In this embodiment, the support frame 10 is a hollow box structure, the rotating cylinder 9 passes through the support frame 10 and is rotatably connected to it, and the worm gear 11, worm 12 and the first motor 13 are all installed inside the support frame 10.

[0050] Example 2:

[0051] This invention provides a heat treatment apparatus for parts used in machine tools. Please refer to [link / reference]. Figure 3 , Figure 4 , Figure 9 and Figure 10The difference between this embodiment and embodiment 1 is that: the side of the insulating heating cylinder 7 away from the opening is connected to the liquid injection pipe 22, the liquid injection pipe 22 is connected to the liquid extraction piston cylinder 21, the liquid extraction piston cylinder 21 is connected to the liquid extraction pipe 20, the liquid extraction pipe 20 is connected to the quenching cylinder 19; the liquid extraction piston cylinder 21 is nested with a piston 23, and the piston 23 is connected to a power mechanism.

[0052] Specifically, during quenching, the insulating heating cylinder 7 is placed on the mounting cylinder 14. The power mechanism is started, and the power mechanism drives the piston of the liquid extraction piston cylinder 21 to move back and forth. The liquid extraction piston cylinder 21 injects the quenching agent in the quenching cylinder 19 into the insulating heating cylinder 7 through the liquid extraction pipe 20 and the liquid injection pipe 22, so as to pour and impregnate the parts on the bearing plate 2, so that the quenching agent and the parts can be in full contact to ensure the quenching effect.

[0053] In this embodiment, the carrier plate 2 has uniformly distributed mesh holes, which are through holes that penetrate the carrier plate 2.

[0054] Specifically, during the rotation of the parts driven by the bearing plate 2, when the lower part of the parts is immersed in the quenching agent in the quenching cylinder 19, the quenching agent injected from the insulating heating cylinder 7 pours and wets the part on the side in contact with the bearing plate 2 through the mesh, further improving the contact effect between the parts and the quenching agent.

[0055] Please see Figure 7 In this embodiment, the inner diameter of the insulating heating cylinder 7 is equal to the inner diameter of the mounting cylinder 14, and a stepped groove for inserting the insulating heating cylinder 7 is provided at the upper opening of the mounting cylinder 14.

[0056] Specifically, when the insulating heating cylinder 7 and the mounting cylinder 14 come into contact, a stepped seal is formed at their joint to prevent the poured quenching agent from overflowing.

[0057] In this embodiment, the power mechanism includes a snap-fit ​​frame 24 fixedly connected to the piston 23, and an eccentric grooved disc 25 snap-fitted onto the snap-fit ​​frame 24. The eccentric grooved disc 25 is sleeved and fixedly connected to the transmission shaft 17.

[0058] Specifically, while the second motor 18 drives the bearing plate 2 to rotate via the transmission shaft 17, vertical shaft 16 and mounting shaft 15, the transmission shaft 17 drives the eccentric grooved plate 25 to rotate. The eccentric grooved plate 25 drives the piston 23 to reciprocate within the liquid-drawing piston cylinder 21 via the snap-fit ​​frame 24, thereby realizing the injection of quenching agent. This simplifies the drive structure and control structure, and makes the rotation of the bearing plate 2 and the injection of quenching agent synchronized.

[0059] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto.

Claims

1. A heat treatment apparatus for parts used in machine tools, characterized in that, The machine includes a machine base (1), a bearing plate (2) mounted on the machine base (1), and a clamping mechanism (3) for clamping parts on the bearing plate (2); a rotating rod (4) is provided above the bearing plate (2), a cutting mechanism (5) is installed at one end of the rotating rod (4), and the cutting mechanism (5) is connected to the rotating rod (4) through a first lead screw assembly (6); an insulating heating cylinder (7) is installed at the other end of the rotating rod (4) away from the cutting mechanism (5), and the insulating heating cylinder (7) is connected to the rotating rod (4) through a second lead screw assembly (8); a rotating cylinder (9) is fixedly connected in the middle of the rotating rod (4), the rotating cylinder (9) is rotatably mounted on a support frame (10), a worm gear (11) is sleeved on the rotating cylinder (9), the worm gear (11) meshes with a worm (12), and the worm (12) is connected to a first motor (13); The bearing plate (2) is fitted with an installation cylinder (14) on its outer side. The installation cylinder (14) is fixedly connected to the machine tool base (1). The installation cylinder (14) is connected to a quenching cylinder (19) installed on the inner side of the machine tool base (1). The quenching cylinder (19) is filled with quenching agent. The side wall of the bearing plate (2) is fixedly connected to an installation shaft (15) extending to the outer side of the installation cylinder (14). The installation shaft (15) is connected to a vertical shaft (16) through a transmission gear. The vertical shaft (16) is connected to a transmission shaft (17) through a transmission gear. The transmission shaft (17) is connected to a second motor (18). The insulating heating cylinder (7) is a cylindrical structure with one end open. An electromagnetic heating coil (702) is nested inside the insulating heating cylinder (7).

2. The heat treatment apparatus for parts of a cutting machine tool according to claim 1, characterized in that, The insulating heating cylinder (7) is connected to a liquid injection pipe (22) on the side away from the opening. The liquid injection pipe (22) is connected to a liquid extraction piston cylinder (21). The liquid extraction piston cylinder (21) is connected to a liquid extraction pipe (20). The liquid extraction pipe (20) is connected to the quenching cylinder (19). A piston (23) is nested inside the liquid extraction piston cylinder (21). The piston (23) is connected to a power mechanism.

3. The heat treatment apparatus for parts of a cutting machine tool according to claim 1, characterized in that, The machine tool base (1) is a hollow box structure, the mounting cylinder (14) is a cylindrical structure with openings at both the top and bottom ends, the mounting cylinder (14) is installed on the upper end face of the machine tool base (1), the quenching cylinder (19) is installed on the inner side of the machine tool base (1) and is arranged opposite to the mounting cylinder (14), and the upper end face of the machine tool base (1) is provided with a through hole connecting the mounting cylinder (14) and the quenching cylinder (19).

4. A heat treatment apparatus for parts of a cutting machine tool according to claim 1, characterized in that, The first lead screw assembly (6) and the second lead screw assembly (8) have the same structure and are mirror images of each other. The first lead screw assembly (6) includes a lifting block, a vertical lead screw threaded to the lifting block, and a lead screw motor connected to the vertical lead screw. The rotating rod (4) is provided with a vertical slide groove for the lifting block to slide.

5. A heat treatment apparatus for parts of a cutting machine tool according to claim 1, characterized in that, The inner wall of the insulating heating cylinder (7) is provided with a jacket cavity (701), and the electromagnetic heating coil (702) is nested in the jacket cavity (701) in a spiral shape. The two ends of the electromagnetic heating coil (702) extend to the outside of the insulating heating cylinder (7) and are connected to an electromagnetic heating controller (703).

6. A heat treatment apparatus for parts of a cutting machine tool according to claim 1, characterized in that, The clamping mechanism (3) includes a set of clamping blocks (301) that pass through the bearing plate (2) and are arranged opposite to each other. The lower part of the clamping block (301) is nested with a slide rail (302) installed on the lower end face of the bearing plate (2). The slide rail (302) is provided with a two-way screw (303) that passes through the clamping block (301) and is threadedly connected to the clamping block (301). The two-way screw (303) extends to the outside of the slide rail (302) and is connected to a transmission rod (304) through a transmission gear set. The transmission rod (304) extends to the top of the bearing plate (2) and is fixedly connected to a knob (305).

7. A heat treatment apparatus for parts of a cutting machine tool according to claim 6, characterized in that, The bidirectional lead screw (303) is set in a direction perpendicular to the setting direction of the mounting shaft (15). The vertical shaft (16) passes through the top plate of the machine tool base (1) and is rotatably connected to it. The second motor (18) is mounted on the rear wall of the machine tool base (1).

8. A heat treatment apparatus for parts of a cutting machine tool according to claim 2, characterized in that, The carrier plate (2) has uniformly distributed mesh holes, which are through holes that penetrate the carrier plate (2).

9. A heat treatment apparatus for parts of a cutting machine tool according to claim 2, characterized in that, The inner diameter of the insulating heating cylinder (7) is equal to the inner diameter of the mounting cylinder (14), and a stepped groove for inserting the insulating heating cylinder (7) is provided at the upper opening of the mounting cylinder (14).

10. A heat treatment apparatus for parts of a cutting machine tool according to claim 2, characterized in that, The power mechanism includes a snap-fit ​​frame (24) fixedly connected to the piston (23), and the snap-fit ​​frame (24) snaps onto an eccentric grooved disc (25), which is sleeved and fixed to the drive shaft (17).

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