Machine tool for surface induction hardening

Abstract

The utility model relates to a machine tool for surface induction quenching, which comprises a surface induction quenching machine tool, a cooling box and a heating device, the cooling box and the heating device are fixedly mounted on the upper surface of the surface induction quenching machine tool, a waste gas filtering structure for filtering waste gas is arranged outside the cooling box, and a spraying device for quenching a workpiece is arranged on the cooling box; and the waste gas filtering structure is composed of a waste gas filtering pipe, a first waste gas filtering net and a second waste gas filtering net, the first waste gas filtering net and the second waste gas filtering net are detachably installed in the waste gas filtering pipe, and the waste gas filtering pipe fixedly communicates with the right side of the cooling box. According to the machine tool for surface induction quenching, workpieces are quenched through the spraying equipment, the workpieces are uniformly quenched due to the fact that the multiple nozzles are annularly distributed, waste gas generated during quenching is filtered through the waste gas filtering structure, and therefore the machine tool has the advantages of being high in practicability, good in quenching effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of induction quenching, in particular to a machine tool for surface induction quenching. Background Art

[0002] Quenching refers to a strengthening process for metals. The specific method is to put the heated metal into cold water or special oil for rapid cooling, which can improve the hardness, strength and wear resistance of metal parts. Induction quenching uses electromagnetic induction to generate eddy currents in the workpiece for heating. Usually, there is no need to keep warm after induction quenching heating, and it is directly cooled. In factories, there are many induction quenching work on shafts, especially spline shafts. The spline is the connection between the shaft and other transmission parts. Therefore, in order to increase the strength of the spline, induction quenching is an indispensable step. At present, the induction quenching process adopts a manual method. The personnel fix the workpiece on the fixture. After induction quenching heating, the personnel transfer the workpiece to the cooling device for cooling treatment. There are some problems with this method. On the one hand, high-temperature residues may pop out during the transfer process, which is prone to danger. On the other hand, manual transfer is inefficient and slow, which affects the quality of induction quenching.

[0003] After searching, Chinese patent CN217438247U discloses a combined induction hardening machine tool, including a workbench, an induction heating power supply, an electromagnetic heating coil, a cooling device, a fixed structure and a movable structure, wherein the induction heating power supply is fixedly arranged on one side of the upper surface of the workbench, the electromagnetic heating coil is connected to the induction heating power supply, the movable structure is arranged on the other side of the upper surface of the workbench, the cooling device is fixedly arranged between the movable structure and the induction heating power supply, and the movable structure includes a slide rail, a slider, a movable block, a first threaded rod and a motor; the utility model integrates the clamping, movement, induction heating and cooling of shaft parts in one machine tool, and there is no need to manually transfer the heated shaft parts, thereby improving safety.

[0004] The utility model combined induction quenching machine tool discharges the waste gas generated during quenching through the exhaust pipe. However, the waste gas generated during quenching is harmful. If the waste gas is not treated and discharged, it will cause harm to the human body through inhalation or ingestion; secondly, it will pollute the atmospheric environment by being discharged into the atmosphere. In addition, the nozzle can only quench and cool one side of the workpiece, which seriously affects the quenching quality of the workpiece and cannot meet the use requirements. Therefore, a surface induction quenching machine tool is proposed to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a machine tool for surface induction quenching, which has the advantages of strong practicality and good quenching effect, and solves the problem that there is no filtering and discharge of the quenching and the nozzle can only quench and cool one side of the workpiece.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a surface induction hardening machine tool, comprising a surface induction hardening machine tool, a cooling box and a heating device fixedly installed on the surface of the surface induction hardening machine tool, an exhaust gas filtering structure for filtering exhaust gas is arranged outside the cooling box, and a spraying device for quenching a workpiece is arranged on the cooling box;

[0007] The exhaust gas filtering structure is composed of an exhaust gas filtering pipe, a first exhaust gas filtering screen and a second exhaust gas filtering screen. The first exhaust gas filtering screen and the second exhaust gas filtering screen are detachably installed inside the exhaust gas filtering pipe. The exhaust gas filtering pipe is fixedly connected to the right side of the cooling box.

[0008] The spraying equipment includes a water tank and a booster pump fixedly installed on the outside of the cooling box and a spray pipe arranged inside the cooling box. The outside of the spray pipe is fixedly connected to a nozzle, the output end and the input end of the booster pump are fixedly connected to connecting pipes, and the two connecting pipes are fixedly connected to the water tank and the spray pipe at one end away from each other.

[0009] Furthermore, the spray pipe has a ring shape, and the number of the spray heads is several, and the several spray heads are evenly distributed outside the spray heads.

[0010] Furthermore, a clamping device and a moving device are provided on the upper surface of the surface induction hardening machine, and the clamping device includes a base plate, a mounting frame, a placement seat, a telescopic cylinder and a clamping seat. The mounting frame and the placement seat are both fixedly mounted on the upper surface of the base plate, and the clamping seat is detachably mounted on the output end of the telescopic cylinder, and the telescopic cylinder is fixedly mounted inside the mounting frame.

[0011] Furthermore, the clamping seat is located above the placing seat, and the clamping seat and the placing seat are adapted in shape. Two symmetrically distributed guide rods are fixedly mounted on the upper surface of the clamping seat, and both guide rods pass through the interior of the mounting frame.

[0012] Furthermore, the mobile device includes a servo motor, a lead screw and a moving block, the lead screw is fixedly mounted on the output end of the servo motor, the moving block is threadedly connected to the outside of the lead screw, and the base plate is detachably mounted on the upper surface of the moving block.

[0013] Furthermore, two mounting seats are welded on the upper surface of the surface induction hardening machine, the lead screw is connected to the two mounting seat bearings, and the servo motor is fixedly mounted on the upper surface of the surface induction hardening machine.

[0014] Furthermore, two symmetrically distributed limiting rods are fixedly installed between the two mounting seats, and the two limiting rods both penetrate the interior of the moving block.

[0015] Compared with the prior art, the utility model provides a machine tool for surface induction hardening, which has the following beneficial effects:

[0016] 1. The surface induction quenching machine uses a spraying device to quench the workpiece. Since several nozzles are distributed in a ring shape, uniform quenching of the workpiece is achieved, and the exhaust gas generated during quenching is filtered through the exhaust gas filtering structure, thereby achieving the advantages of strong practicality and good quenching effect, and solving the problem that there is no filtering and discharge of the exhaust gas generated during quenching, and the nozzle can only quench and cool one side of the workpiece.

[0017] 2. The surface induction hardening machine tool passes the workpiece through the mounting frame and places it on the placement seat, starts the telescopic cylinder to drive the clamping seat to move, and the clamping seat moves down to clamp and fix the workpiece, then starts the servo motor so that its output shaft drives the screw to rotate, and the rotation of the screw drives the moving block to move left and right, thereby moving the workpiece to facilitate quenching work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0019] Figure 2 This is a structural stereogram of the exhaust gas filtering structure of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the clamping device of the utility model.

[0021] In the figure: 1. surface induction hardening machine; 2. cooling box; 3. heating equipment; 4. exhaust gas filtering structure; 41. exhaust gas filtering pipe; 42. first exhaust gas filtering net; 43. second exhaust gas filtering net; 5. spraying equipment; 51. water tank; 52. booster pump; 53. spray pipe; 54. nozzle; 55. connecting pipe; 6. clamping equipment; 61. bottom plate; 62. mounting frame; 63. placement seat; 64. telescopic cylinder; 65. clamping seat; 7. moving equipment; 71. servo motor; 72. lead screw; 73. moving block; 74. mounting seat. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3A surface induction hardening machine tool comprises a surface induction hardening machine tool 1, a cooling box 2 fixedly mounted on the upper surface of the surface induction hardening machine tool 1, and a heating device 3. The cooling box 2 is fixedly connected to the outside with a drain pipe, and the end of the drain pipe is threadedly connected with a sealing cover to facilitate the discharge of excess water. The heating device 3 comprises an induction heating power supply and an electromagnetic heating coil.

[0024] It should be noted that the heating device 3 is a conventional technology known to the public in the prior art, so its specific structure and working principle will not be described in detail in this article. The surface induction hardening machine 1 is equipped with a PLC control device to facilitate the control of the electrical appliances of the device.

[0025] In this embodiment, an exhaust gas filter structure 4 for filtering exhaust gas is disposed outside the cooling box 2. The exhaust gas filter structure 4 is composed of an exhaust gas filter pipe 41, a first exhaust gas filter screen 42 and a second exhaust gas filter screen 43. The first exhaust gas filter screen 42 and the second exhaust gas filter screen 43 are detachably mounted inside the exhaust gas filter pipe 41, and the exhaust gas filter pipe 41 is fixedly connected to the right side of the cooling box 2. The exhaust gas generated during quenching is discharged through the exhaust gas filter pipe 41, and then the exhaust gas is filtered by the first exhaust gas filter screen 42 and the second exhaust gas filter screen 43 to filter harmful substances in the exhaust gas to avoid direct discharge and environmental impact.

[0026] It should be noted that the second exhaust gas filter 43 can be an activated carbon filter plate, and the end of the exhaust gas filter pipe 41 away from the cooling box 2 is connected to the exhaust fan, so as to discharge the exhaust gas inside the cooling box 2. The activated carbon filter plate belongs to the conventional technology known to the public in the prior art, so the specific structure and working principle thereof will not be described in detail in this article.

[0027] In this embodiment, a spray device 5 for quenching the workpiece is provided on the cooling box 2; the spray device 5 includes a water tank 51 and a booster pump 52 fixedly installed on the outside of the cooling box 2 and a spray pipe 53 arranged inside the cooling box 2, the outside of the spray pipe 53 is fixedly connected to a nozzle 54, the output end and the input end of the booster pump 52 are fixedly connected to a connecting pipe 55, and the two connecting pipes 55 are fixedly connected to the water tank 51 and the spray pipe 53 at one end away from each other.

[0028] It should be noted that the spray pipe 53 is in a ring shape, and the number of the spray heads 54 is several, and the several spray heads 54 are equidistantly distributed outside the spray heads 54. The output end of the spray head 54 faces the workpiece. A water level sensor is installed in the water tank 51. A water inlet pipe and a drain pipe are installed on the back of the water tank 51, and sealing plugs are threadedly installed at the ends of the water inlet pipe and the drain pipe. A fixing frame fixed to the inner wall of the cooling box 2 is welded on the outside of the spray pipe 53.

[0029] In this embodiment, a clamping device 6 and a moving device 7 are provided on the upper surface of the surface induction hardening machine 1. The clamping device 6 includes a base plate 61, a mounting frame 62, a placement seat 63, a telescopic cylinder 64 and a clamping seat 65. The mounting frame 62 and the placement seat 63 are both fixedly mounted on the upper surface of the base plate 61. The clamping seat 65 is detachably mounted on the output end of the telescopic cylinder 64. The telescopic cylinder 64 is fixedly mounted inside the mounting frame 62.

[0030] The clamping seat 65 is located above the placement seat 63, and the clamping seat 65 is adapted to the placement seat 63 in shape. Two symmetrically distributed guide rods are fixedly mounted on the upper surface of the clamping seat 65, and both guide rods pass through the interior of the mounting frame 62. The surroundings of the mounting frame 62 are hollowed out to facilitate the placement of the workpiece.

[0031] In addition, the mobile device 7 includes a servo motor 71, a lead screw 72 and a moving block 73. The lead screw 72 is fixedly installed on the output end of the servo motor 71, the moving block 73 is threadedly connected to the outside of the lead screw 72, and the base plate 61 is detachably installed on the upper surface of the moving block 73.

[0032] In this embodiment, two mounting seats 74 are welded on the upper surface of the surface induction hardening machine 1, the lead screw 72 is connected to the bearings of the two mounting seats 74, and the servo motor 71 is fixedly mounted on the upper surface of the surface induction hardening machine 1. Two symmetrically distributed limit rods are fixedly mounted between the two mounting seats 74, and the two limit rods both penetrate the interior of the moving block 73.

[0033] The working principle of the above embodiment is:

[0034] The waste gas generated during quenching is discharged through the waste gas filter pipe 41, and then filtered by the first waste gas filter 42 and the second waste gas filter 43 to filter the harmful substances in the waste gas to avoid direct discharge and affect the environment. During quenching, the additional pump 52 is started to transport the liquid inside the water tank 51, and finally the workpiece is quenched through the ring-distributed nozzles 54.

[0035] The electrical components appearing in the article are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device for control such as a computer, and the existing public power connection technology is not described in detail in the article.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface induction hardening machine tool, comprising a surface induction hardening machine tool (1), a cooling box (2) fixedly mounted on the upper surface of the surface induction hardening machine tool (1), and a heating device (3), characterized in that: An exhaust gas filtering structure (4) for filtering exhaust gas is arranged outside the cooling box (2), and a spray device (5) for quenching the workpiece is arranged on the cooling box (2); The exhaust gas filtering structure (4) is composed of an exhaust gas filtering pipe (41), a first exhaust gas filtering screen (42) and a second exhaust gas filtering screen (43), wherein the first exhaust gas filtering screen (42) and the second exhaust gas filtering screen (43) are detachably mounted inside the exhaust gas filtering pipe (41), and the exhaust gas filtering pipe (41) is fixedly connected to the right side of the cooling box (2); The spraying device (5) comprises a water tank (51) and a booster pump (52) fixedly mounted on the outside of the cooling box (2), and a spray pipe (53) arranged inside the cooling box (2); the outside of the spray pipe (53) is fixedly connected to a spray head (54); the output end and the input end of the booster pump (52) are both fixedly connected to connecting pipes (55); and the two connecting pipes (55) are fixedly connected to the water tank (51) and the spray pipe (53) at one end away from each other.

2. A surface induction hardening machine tool according to claim 1, characterized in that: The spray pipe (53) is in the shape of a ring, and the number of the spray heads (54) is a plurality, and the plurality of spray heads (54) are equidistantly distributed outside the spray heads (54).

3. A surface induction hardening machine tool according to claim 1, characterized in that: The upper surface of the surface induction hardening machine tool (1) is provided with a clamping device (6) and a moving device (7); the clamping device (6) comprises a base plate (61), a mounting frame (62), a placement seat (63), a telescopic cylinder (64) and a clamping seat (65); the mounting frame (62) and the placement seat (63) are both fixedly mounted on the upper surface of the base plate (61); the clamping seat (65) is detachably mounted on the output end of the telescopic cylinder (64); and the telescopic cylinder (64) is fixedly mounted inside the mounting frame (62).

4. A surface induction hardening machine tool according to claim 3, characterized in that: The clamping seat (65) is located above the placement seat (63), and the clamping seat (65) and the placement seat (63) are adapted in shape. Two symmetrically distributed guide rods are fixedly mounted on the upper surface of the clamping seat (65), and the two guide rods both penetrate the interior of the mounting frame (62).

5. A surface induction hardening machine tool according to claim 3, characterized in that: The mobile device (7) comprises a servo motor (71), a lead screw (72) and a moving block (73); the lead screw (72) is fixedly mounted on the output end of the servo motor (71); the moving block (73) is threadedly connected to the outside of the lead screw (72); and the base plate (61) is detachably mounted on the upper surface of the moving block (73).

6. A surface induction hardening machine tool according to claim 5, characterized in that: Two mounting seats (74) are welded on the upper surface of the surface induction hardening machine tool (1); the lead screw (72) is connected to the bearings of the two mounting seats (74); and the servo motor (71) is fixedly mounted on the upper surface of the surface induction hardening machine tool (1).

7. A surface induction hardening machine tool according to claim 6, characterized in that: Two symmetrically distributed limiting rods are fixedly mounted between the two mounting seats (74), and both limiting rods penetrate the interior of the moving block (73).

Images