Quenching device for metal casting

Abstract

The utility model discloses a quenching device for metal castings, which belongs to the field of metal casting processing and comprises a quenching box, a lifting mechanism arranged at the top of the quenching box, a placing frame arranged at the output end of the lifting mechanism, and an auxiliary mechanism arranged in the quenching box and comprising a mounting block slidably connected to the inner wall of the quenching box. A stepping motor is fixedly connected into the mounting block, the output end of the stepping motor is connected with a cam, extension plates are fixedly connected to the two sides of the containing frame, and the auxiliary mechanism further comprises a power assembly. After a metal casting is cooled to a certain temperature, a placing frame is lifted to a certain height through a lifting mechanism, a mounting block is moved to the position under an extension plate through a power assembly, a stepping motor is started, the stepping motor drives a cam to rotate, and after the tip end of the cam rotates to the upper portion, the cam can drive the extension plate to drive the placing frame to move upwards; and after the tip end of the cam rotates away, the placing frame moves downwards under the action of gravity, a cooling medium on the metal casting is shaken off, and follow-up machining is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of metal casting processing, in particular to a quenching device for metal castings. Background Art

[0002] Casting is a manufacturing method in which melted metal is poured into a pre-prepared mold, cooled and solidified to form, and then the pouring system and subsequent processing such as polishing are removed to finally obtain a metal part with a certain shape, size and performance. The metal parts or products manufactured by the casting process are called metal castings. During the processing of metal castings, quenching is required to improve the hardness and wear resistance of the metal workpiece. Quenching refers to a heat treatment process method in which the workpiece is heated to above the critical temperature, kept at this temperature for a certain period of time, and then cooled at a cooling rate greater than the critical cooling rate to obtain an unbalanced structure dominated by martensite.

[0003] After searching, the Chinese patent publication number CN221626319U is found, which discloses a quenching device for processing metal castings. The quenching device for processing metal castings, through the quenching collection mechanism, after quenching is completed, drives the mesh plate to rise through the front and rear connecting frames until the top of the limit stop column is received into the mesh plate. At this time, under the action of gravity, the casting on the mesh plate automatically rolls to the inside of the collection box, thereby eliminating the need for manual removal and collection. At the same time, through the filter plate structure inside the collection box, the quenching liquid remaining on the surface of the casting can be dripped into the inside of the liquid accumulation box.

[0004] However, after the metal casting is lifted out of the quenching box, a lot of cooling medium will remain on the metal casting, making it inconvenient to perform the next step of operation. Utility Model Content

[0005] The purpose of this utility model is to provide a quenching device for metal castings in order to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A quenching device for metal castings includes a quenching box, a lifting mechanism is provided on the top of the quenching box, a placement frame is provided at the output end of the lifting mechanism, an auxiliary mechanism is provided in the quenching box, the auxiliary mechanism includes two groups of symmetrically arranged mounting blocks, slide grooves are provided on the inner walls on both sides of the quenching box, the mounting blocks are slidably connected in the slide grooves, a mounting groove is provided in the mounting block, a stepper motor is fixedly connected in the mounting groove, the output end of the stepper motor is connected to a cam through a coupling, extension plates are fixedly connected on both sides of the placement frame, the auxiliary mechanism also includes a power component, the power component is used to drive the mounting block to move, a filtering mechanism is provided on one side of the quenching box, the filtering mechanism is used to filter and collect impurities in the cooling medium.

[0008] Preferably, the power assembly includes a screw rod rotatably connected in the slide groove, the mounting block is threadedly connected to the screw rod, a rotating motor is fixedly connected to the rear side of the quenching box, the output end of the rotating motor is connected to one of the screw rods through a coupling, and the ends of the two screw rods extend out of the quenching box and are connected to a synchronous belt through a pulley.

[0009] Preferably, the lifting mechanism includes a mounting frame fixedly connected to the top of the quenching box, two vertical plates are fixedly connected to the mounting frame, one side of one of the vertical plates is fixedly connected to a winding motor, the output end of the winding motor is connected to a winding shaft through a coupling, the winding shaft is rotatably connected between the two vertical plates, a steel wire rope is wound on the winding shaft, and the placement frame is fixedly connected to the bottom end of the steel wire rope.

[0010] Preferably, the bottom end of the steel wire rope is provided with a plurality of branches, and the plurality of branches are respectively fixedly connected to the four corners of the placement frame.

[0011] Preferably, the filtering mechanism includes a conversion box placed on the ground, a filter box is slidably connected between the inner walls of the conversion box, the front end of the filter box extends out of the conversion box, the bottom of the filter box is in the shape of a filter mesh, a liquid outlet pipe is connected between the conversion box and the quenching box, one end of the liquid outlet pipe extends to the top of the filter box, and a pump is fixedly connected to the side of the conversion box away from the quenching box, the liquid inlet of the pump is located below the filter box, the liquid outlet of the pump is connected to the liquid inlet pipe, and the other end of the liquid inlet pipe extends into the quenching box.

[0012] Preferably, an opening and closing door is hinged on the front side of the placement frame, a limiting block is fixedly connected to the rear side of the placement frame, a limiting groove is provided on the inner rear wall of the quenching box, and the limiting block moves up and down in the limiting groove.

[0013] The beneficial effect is that after the metal casting is cooled to a certain temperature, the placement frame is lifted to a certain height through the lifting mechanism, the mounting block is moved to the bottom of the extension plate through the power assembly, the stepper motor is started, and the stepper motor drives the cam to rotate. When the cam tip turns upward, the cam drives the extension plate to drive the placement frame to move upward. When the cam tip turns away, the placement frame moves downward under the action of gravity, shaking off the cooling medium on the metal casting, which is convenient for subsequent processing.

[0014] Additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1This is a schematic diagram of the overall structure of a quenching device for metal castings described in the utility model;

[0017] Figure 2 It is a front view of a quenching device for metal castings according to the utility model;

[0018] Figure 3 This is a front view of the internal structure of a quenching device for metal castings according to the present invention;

[0019] Figure 4 This is a top view of the internal structure of a quenching box of a metal casting quenching device according to the present invention;

[0020] Figure 5 It is a schematic diagram of a placement frame of a quenching device for metal castings described in the utility model.

[0021] The description of the accompanying numbers is as follows: 1. Quenching box; 2. Placement frame; 201. Opening and closing door; 202. Limit block; 301. Mounting frame; 302. Vertical plate; 303. Winding motor; 304. Winding shaft; 305. Wire rope; 401. Mounting block; 402. Stepping motor; 403. Cam; 404. Extension plate; 405. Screw; 406. Rotating motor; 407. Synchronous belt; 501. Conversion box; 502. Filter box; 503. Pump; 504. Liquid outlet pipe; 505. Liquid inlet pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figure 1-Figure 5As shown, a quenching device for metal castings includes a quenching box 1. A lifting mechanism is provided on the top of the quenching box 1. The lifting mechanism includes a mounting frame 301 bolted to the top of the quenching box 1. The mounting frame 301 is an inverted U-shape. Two vertical plates 302 are bolted to the mounting frame 301. One side of one vertical plate 302 is bolted to a winding motor 303. The output end of the winding motor 303 is connected to a winding shaft 304 through a coupling. The winding shaft 304 is rotatably connected between the two vertical plates 302. A steel wire rope 305 is wound on the winding shaft 304. The bottom end of the steel wire rope 305 is provided with multiple branches. The other ends of the multiple branches are commonly connected to a placement frame 2. The placement frame 2 is provided with multiple through holes. The multiple branches are respectively distributed at the four corners of the placement frame 2 to improve the stability of the placement frame 2 during the lifting process.

[0026] The front side of the placement frame 2 is hinged with an opening and closing door 201, the rear side of the placement frame 2 is bolted to a limit block 202, and a limit groove is provided on the inner rear wall of the quenching box 1. The limit block 202 moves up and down in the limit groove. The moving trajectory of the placement frame 2 is restricted by the limit groove to improve the stability of the moving process.

[0027] An auxiliary mechanism is provided in the quenching box 1, and the auxiliary mechanism includes two groups of symmetrically arranged mounting blocks 401. Slide grooves are provided on the inner walls on both sides of the quenching box 1, and the mounting blocks 401 are slidably connected in the slide grooves. A mounting groove is provided in the mounting block 401, and a stepper motor 402 is bolted in the mounting groove. The output end of the stepper motor 402 is connected to a cam 403 through a coupling, and extension plates 404 are bolted on both sides of the placement frame 2. Start the stepper motor 402, and the stepper motor 402 drives the cam 403 to rotate. When the tip of the cam 403 abuts against the extension plate 404, the cam 403 starts to drive the extension plate 404 to drive the placement frame 2 to move upward. When the tip of the cam 403 turns away, the placement frame 2 moves downward under the action of gravity.

[0028] The auxiliary mechanism also includes a power assembly, which is used to drive the mounting block 401 to move. The power assembly includes a screw rod 405 rotatably connected to the slide groove, and the mounting block 401 is threadedly connected to the screw rod 405. A rotating motor 406 is bolted to the rear side of the quenching box 1. The output end of the rotating motor 406 is connected to one of the screw rods 405 through a coupling. The ends of the two screw rods 405 extend out of the quenching box 1 and are connected to a synchronous belt 407 through a pulley. Start the rotating motor 406, and the rotating motor 406 drives one of the screw rods 405 to rotate. The other screw rod 405 is driven to rotate through the transmission between the pulley and the synchronous belt 407. The screw rod 405 rotates to drive the mounting block 401 to move, so that when there is no need to clean the cooling medium on the metal casting, the mounting block 401 is located behind the extension plate 404 to avoid affecting the up and down movement of the placement frame 2.

[0029] A filtering mechanism is provided on one side of the quenching box 1, which is used to filter and collect impurities in the cooling medium. The filtering mechanism includes a conversion box 501 placed on the ground, and a filter box 502 is slidably connected between the inner walls of the conversion box 501. The front end of the filter box 502 extends out of the conversion box 501 and is welded with a handle. The bottom of the filter box 502 is in the shape of a filter mesh. A liquid outlet pipe 504 is connected between the conversion box 501 and the quenching box 1, and one end of the liquid outlet pipe 504 extends to the top of the filter box 502. A pump 503 is bolted to the side of the conversion box 501 away from the quenching box 1, and the liquid inlet of the pump 503 is located below the filter box 502. The liquid outlet of the pump 503 is connected to the liquid inlet pipe 505, and the other end of the liquid inlet pipe 505 extends into the quenching box 1.

[0030] Working principle: When in use, the metal casting to be cooled is placed in the placement frame 2, the opening and closing door 201 is locked, and the winding motor 303 is started. The winding motor 303 drives the winding shaft 304 to rotate and unwinds the wire rope 305, thereby completely extending the metal casting in the placement frame 2 into the cooling medium. After the metal casting has cooled for a certain period of time and the metal casting has dropped to a certain temperature, the winding motor 303 is started. The winding motor 303 drives the winding shaft 304 to rotate and rewinds the wire rope 305, thereby lifting the placement frame 2 to a certain height, and the rotating motor 406 is started. The rotating motor 406 drives one of the screw rods 405 to rotate, and drives the other screw rod 405 to rotate through the transmission between the pulley and the synchronous belt 407. The screw rod 405 rotates to drive the mounting block 401 to move, and after the cam 403 is moved to the right below the extension plate 404, it stops moving, and the stepper motor 402 is started. The stepper motor 402 drives the cam 403 to rotate. When the cam 4 After the tip of 03 abuts against the extension plate 404, the cam 403 starts to drive the extension plate 404 to drive the placement frame 2 to move upward. When the tip of the cam 403 turns away, the placement frame 2 moves downward under the action of gravity. When the placement frame 2 moves upward, the wire rope 305 will be loose, and when the placement frame 2 moves downward, the wire rope 305 is gradually tensioned. This reciprocating process causes the placement frame 2 to continuously move up and down, shaking off the cooling medium on the metal casting to facilitate subsequent processing. During the quenching process, the pump 503 is started to transport the cooling medium in the quenching box 1 to the filter box 502 through the liquid outlet pipe 504, and the impurities in the cooling medium are filtered by the filter box 502. The filtered cooling medium re-enters the quenching box 1 through the liquid inlet pipe 505, which not only improves the fluidity of the cooling medium in the quenching box 1 and improves the cooling uniformity, but also can filter and collect impurities in the cooling medium to prevent impurities from adhering to the metal casting when the metal casting is lifted.

[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A quenching device for metal castings, comprising a quenching box (1), a lifting mechanism provided on the top of the quenching box (1), a placement frame (2) provided at the output end of the lifting mechanism, characterized in that: An auxiliary mechanism is provided in the quenching box (1), and the auxiliary mechanism includes two groups of symmetrically arranged mounting blocks (401). Slide grooves are provided on the inner walls on both sides of the quenching box (1), and the mounting blocks (401) are slidably connected in the slide grooves. A mounting groove is provided in the mounting block (401), and a stepper motor (402) is fixedly connected in the mounting groove. The output end of the stepper motor (402) is connected to a cam (403) through a coupling. Extension plates (404) are fixedly connected to both sides of the placement frame (2). The auxiliary mechanism also includes a power component, and the power component is used to drive the mounting blocks (401) to move. A filtering mechanism is provided on one side of the quenching box (1), and the filtering mechanism is used to filter and collect impurities in the cooling medium.

2. A quenching device for metal castings according to claim 1, characterized in that: The power assembly includes a screw rod (405) rotatably connected in a slide groove, the mounting block (401) is threadedly connected to the screw rod (405), a rotary motor (406) is fixedly connected to the rear side of the quenching box (1), the output end of the rotary motor (406) is connected to one of the screw rods (405) through a coupling, and the ends of the two screw rods (405) extend out of the quenching box (1) and are connected to a synchronous belt (407) through a pulley.

3. A quenching device for metal castings according to claim 1, characterized in that: The lifting mechanism comprises a mounting frame (301) fixedly connected to the top of the quenching box (1), two vertical plates (302) fixedly connected to the mounting frame (301), a winding motor (303) fixedly connected to one side of one of the vertical plates (302), an output end of the winding motor (303) connected to a winding shaft (304) via a coupling, the winding shaft (304) rotatably connected between the two vertical plates (302), a steel wire rope (305) wound around the winding shaft (304), and the placement frame (2) fixedly connected to the bottom end of the steel wire rope (305).

4. A quenching device for metal castings according to claim 3, characterized in that: The bottom end of the steel wire rope (305) is provided with a plurality of branches, and the plurality of branches are respectively fixedly connected to the four corners of the placement frame (2).

5. The quenching device for metal castings according to claim 1, characterized in that: The filtering mechanism comprises a conversion box (501) placed on the ground, a filter box (502) is slidably connected between the inner walls of the conversion box (501), the front end of the filter box (502) extends out of the conversion box (501), the bottom of the filter box (502) is in the shape of a filter mesh, a liquid outlet pipe (504) is connected between the conversion box (501) and the quenching box (1), one end of the liquid outlet pipe (504) extends above the filter box (502), a pump (503) is fixedly connected to the side of the conversion box (501) away from the quenching box (1), the liquid inlet of the pump (503) is located below the filter box (502), the liquid outlet of the pump (503) is connected to the liquid inlet pipe (505), and the other end of the liquid inlet pipe (505) extends into the quenching box (1).

6. The quenching device for metal castings according to claim 1, characterized in that: The front side of the placement frame (2) is hinged with an opening and closing door (201), the rear side of the placement frame (2) is fixedly connected to a limiting block (202), the inner rear wall of the quenching box (1) is provided with a limiting groove, and the limiting block (202) moves up and down in the limiting groove.

Images