阅读说明：本技术 一种齿条的齿面淬火装置 (Tooth surface quenching device for rack ) 是由 张绍明 于 2020-05-19 设计创作，主要内容包括：本发明提供了一种齿条的齿面淬火装置,属于机械技术领域。它解决了现有的淬火装置淬火效果差的问题。本齿条的齿面淬火装置,包括机架、淬火头、淬火液喷头、具有安装腔的淬火盘以及用于夹持定位齿条的夹具,淬火头和淬火液喷头固定在机架上,淬火头和淬火液喷头均位于夹具的上方且均与夹具相对,淬火盘设置在机架上且能够相对机架沿水平方向来回滑动,夹具设置在淬火盘的安装腔内,夹具的底面为平面,淬火盘上还设有吸附件且吸附件能够吸住齿条底部使其紧贴在夹具的底面上。吸附件能够产生吸附力将齿条的底部牢牢的吸住,在淬火过程中即使齿条受热,也不会发生变形上翘,提高了齿面淬火的效果,保证了产品的质量。(The invention provides a tooth surface quenching device for a rack, and belongs to the technical field of machinery. It solves the problem of poor quenching effect of the existing quenching device. This flank of tooth guenching unit of rack, which comprises a frame, the quenching head, the quenching liquid shower nozzle, the anchor clamps that have the quenching dish of installation cavity and be used for centre gripping location rack, quenching head and quenching liquid shower nozzle are fixed in the frame, quenching head and quenching liquid shower nozzle all are located the top of anchor clamps and all are relative with anchor clamps, the setting of quenching dish just can make a round trip to slide along the horizontal direction relative to the frame in the frame, anchor clamps set up in the installation cavity of quenching dish, the bottom surface of anchor clamps is the plane, it can inhale the rack bottom and make it hug closely on the bottom surface of anchor clamps still to be equipped with adsorption element and adsorption element on the quenching dish. The adsorption piece can generate adsorption force to firmly adsorb the bottom of the rack, and the rack cannot deform and upwarp even being heated in the quenching process, so that the tooth surface quenching effect is improved, and the product quality is ensured.)

1. The utility model provides a flank of tooth guenching unit of rack, includes frame (1), quenching head (2), quenching liquid shower nozzle (3) and is used for anchor clamps (4) of centre gripping location rack (19), quenching head (2) and quenching liquid shower nozzle (3) are fixed in frame (1), quenching head (2) and quenching liquid shower nozzle (3) all are located the top of anchor clamps (4) and all with anchor clamps (4) are relative, its characterized in that, this guenching unit is still including quenching dish (5) that have installation cavity (5a1), quenching dish (5) set up frame (1) is last and can be relative frame (1) makes a round trip to slide along the horizontal direction, anchor clamps (4) set up in the installation cavity (5a1) of quenching dish (5), the bottom surface of anchor clamps (4) is the plane, quenching dish (5) are last still to be equipped with to adsorb and the piece can inhale rack (19) bottom and make it hug closely it be in the bottom surface of anchor clamps (4) is hugged closely .

2. The tooth surface quenching device of the rack according to claim 1, wherein the adsorption member is a vacuum generator (6), the bottom of the clamp (4) is provided with a plurality of adsorption holes (4a), and the plurality of adsorption holes (4a) are communicated with the vacuum generator (6) through a pipeline.

3. The gear surface quenching device for the rack according to claim 1, wherein the suction member is an electromagnetic chuck, the electromagnetic chuck is in a long strip shape and is arranged at the bottom of the clamp (4), and a magnetic conductive panel of the electromagnetic chuck is flush with the bottom surface of the clamp (4).

4. The tooth surface quenching device for the rack according to claim 1, 2 or 3, wherein the quenching disc (5) comprises a bottom plate (5b) and a disc-shaped disc body (5a), the inner cavity of the disc body (5a) is the installation cavity (5a1), the clamp (4) is arranged in the disc body (5a), the disc body (5a) is arranged on the bottom plate (5b), a sliding rail (7) is fixed on the rack (1), the bottom plate (5b) is connected to the sliding rail (7) in a sliding manner, and a driving assembly capable of driving the bottom plate (5b) to slide back and forth along the sliding rail (7) is further arranged on the rack (1).

5. The tooth surface quenching device for the rack according to claim 4, wherein the disc body (5a) is rectangular, the disc body (5a) is positioned above the bottom plate (5b), and two ends of the disc body (5a) are connected with the bottom plate (5b) through a lifting assembly (10) capable of driving the disc body (5a) to lift up and down.

6. The gear surface hardening device of a rack according to claim 5, wherein both ends of the disc (5a) are provided with two sets of the above-mentioned lifting assemblies (10), and two groups of lifting components (10) at the same end are respectively arranged close to the two sides of the plate body (5a), the lifting component (10) comprises a mounting seat (10a), a worm wheel (10b), a worm (10c) and a lifting screw (10d), the mounting seat (10a) is cylindrical and fixed on the bottom plate (5b), the worm wheel (10b) is axially limited in the mounting seat (10a) and can rotate in the mounting seat (10a), the worm (10c) is in transmission connection with a worm wheel (10b), one end of the lifting screw (10d) is fixed with the disc body (5a), and the other end of the lifting screw penetrates through the worm wheel (10b) and is in threaded connection with the worm wheel (10 b).

7. The gear quenching device for the tooth surface of the rack according to claim 6, wherein two worms (10c) located at the same end of the disk body (5a) are connected into a whole through a connecting rod (11), and one worm (10c) is further provided with a rotating wheel (12).

8. The tooth surface quenching device of the rack as claimed in claim 7, characterized in that the bottom of the disc body (5a) is further provided with a liquid drainage port (5a2) capable of communicating with the mounting cavity (5a1) of the disc body (5 a).

9. The gear surface quenching device for the rack according to claim 1, 2 or 3, wherein the quenching liquid nozzle (3) is positioned at one side of the quenching head (2), the rack (1) is further provided with a smoke exhaust tube (16), the smoke exhaust tube (16) is positioned at one side of the quenching liquid nozzle (3), and a smoke exhaust port of the smoke exhaust tube (16) is opposite to the quenching liquid nozzle (3).

10. The tooth surface quenching device for the rack according to claim 4, characterized in that a mounting frame (17) is arranged in the disk body (5a), the clamp (4) is arranged on the mounting frame (17), a baffle (17a) is arranged on the mounting frame (17), a plurality of supporting blocks (18) are further arranged in the disk body (5a), and the supporting blocks (18) are positioned on one side of the baffle (17a) far away from the clamp (4).

Technical Field

The invention belongs to the technical field of machinery, and relates to a tooth surface quenching device for a rack.

Background

The rack is a special gear with teeth distributed on a strip-shaped body and mainly comprises a straight-tooth rack and a helical-tooth rack. In the machining process of the rack, the tooth surface of the rack is often required to be quenched so that the surface structure of the rack is transformed into martensite, thereby improving the hardness, wear resistance and fatigue strength of the tooth surface and prolonging the wear-resistant life of the rack.

Disclosure of Invention

The invention aims to provide a tooth surface quenching device of a rack aiming at the problems in the prior art, and the technical problems to be solved by the invention are as follows: how to improve the quenching effect and ensure the quality of products.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a flank of tooth guenching unit of rack, includes frame, quenching head, quenching liquid shower nozzle and is used for the anchor clamps of centre gripping location rack, quenching head and quenching liquid shower nozzle are fixed in the frame, quenching head and quenching liquid shower nozzle all are located the top of anchor clamps and all with anchor clamps are relative, its characterized in that, this guenching unit still including the quenching dish that has the installation cavity, the setting of quenching dish is in just can be relative in the frame the horizontal direction makes a round trip to slide, anchor clamps set up in the installation cavity of quenching dish, the bottom surface of anchor clamps is the plane, it just still adsorbs to be equipped with on the quenching dish the adsorption element can be inhaled the rack bottom and make it hug closely on the bottom surface of anchor clamps.

When the quenching device is used for quenching, the rack is clamped and positioned on the clamp, the quenching head is used for quenching the rack, the quenching liquid spray head is used for spraying quenching liquid in the quenching process to cool and improve the quenching performance, and the quenching disc slides along the length direction of the rack relative to the rack, so that each tooth surface on the rack is quenched. The quenching disc is arranged to be provided with an installation cavity structure, so that quenching liquid sprayed out in the quenching process cannot flow randomly, can be collected in the installation cavity of the quenching disc in a centralized manner, and is convenient for subsequent recovery and treatment. Simultaneously, this application designs the bottom surface of anchor clamps for the plane to set up the absorption structure on quenching the dish, the absorption can produce the adsorption affinity and firmly hold the bottom of rack and make it keep hugging closely on the bottom surface of anchor clamps all the time, consequently, in the quenching process, even the rack is heated, it can not take place to warp and upwarp, has improved the effect of flank of tooth quenching, has guaranteed the quality of product.

In the tooth surface quenching device of the rack, the adsorption piece is a vacuum generator, the bottom of the clamp is provided with a plurality of adsorption holes, and the adsorption holes are communicated with the vacuum generator through pipelines. In the quenching process, the vacuum generator generates vacuum adsorption force, and can firmly adsorb the bottom of the rack to enable the rack to be always tightly attached to the bottom surface of the clamp, so that the rack cannot deform and upwarp even if heated in the quenching process, the tooth surface quenching effect is improved, and the product quality is ensured.

In the tooth surface quenching device of the rack, the adsorption piece is an electromagnetic chuck which is in a long strip shape and is arranged at the bottom of the clamp, and the magnetic conduction panel of the electromagnetic chuck is flush with the bottom surface of the clamp. The rack is clamped and positioned in the clamp to be attached to the bottom surface of the clamp and the magnetic conductive panel of the electromagnetic chuck, the electromagnetic chuck is electrified through the internal coil to generate magnetic force, the rack is firmly attracted through the magnetic conductive panel and is kept to be attached to the bottom surface of the clamp all the time, therefore, in the quenching process, even if the rack is heated, the rack cannot deform and upwarp, the tooth surface quenching effect is improved, and the product quality is ensured.

In the tooth surface quenching device of the rack, the quenching disc comprises a bottom plate and a disc-shaped disc body, the inner cavity of the disc body is the installation cavity, the clamp is arranged in the disc body, the disc body is arranged on the bottom plate, a slide rail is fixed on the rack, the bottom plate is connected to the slide rail in a sliding manner, and a driving assembly capable of driving the bottom plate to slide back and forth along the slide rail is further arranged on the rack. Through the structure of slide rail, can realize quenching the relative frame of dish and make a round trip to slide to can realize quenching the processing to the flank of tooth of whole rack.

In the tooth surface quenching device of the rack, the number of the slide rails is two, the bottom parts of the two sides of the bottom plate are respectively provided with the slide block, the slide blocks are connected to the slide rails in a sliding manner, and the two ends of the slide rails are respectively provided with the limiting parts for limiting the sliding stroke of the slide blocks. The slide rails and the slide blocks are arranged into two groups and are respectively close to two sides of the bottom plate, so that the quenching disc can stably realize the back-and-forth sliding relative to the rack, the tooth surface of the whole rack can be quenched, and the quenching effect and the product quality are ensured. The limiting part limits the moving stroke to avoid sliding over the head.

In the tooth surface quenching device for the rack, the disk body is rectangular, the disk body is positioned above the bottom plate, and the two ends of the disk body are connected with the bottom plate through the lifting assembly capable of driving the disk body to lift up and down. Through lifting unit's setting, can adjust the height between the relative bottom plate of disk body to can adapt to the rack of various not unidimensional, guarantee that each rack by the centre gripping back and quench and can keep reasonable distance between the head, thereby improve the effect of quenching, guarantee the quality of product.

In the tooth surface quenching device of the rack, two groups of the lifting assemblies are arranged at two ends of the tray body, the two groups of the lifting assemblies at the same end are respectively arranged close to two sides of the tray body, each lifting assembly comprises an installation seat, a worm wheel, a worm and a lifting screw rod, the installation seats are cylindrical and fixed on the bottom plate, the worm wheels are axially limited in the installation seats and can rotate in the installation seats, the worm wheels are in transmission connection with the worm wheels, one ends of the lifting screw rods are fixed with the tray body, and the other ends of the lifting screw rods penetrate through the worm wheels and are in threaded connection with the worm wheels. When the adjusting device needs to be adjusted, the worm is rotated to drive the worm wheel to rotate, and the worm wheel can drive the lifting screw to move up and down, so that the relative bottom plate of the plate body can be adjusted up and down, racks with different sizes can be adapted, a reasonable distance can be kept between each clamped rack and the quenching head, the quenching effect is improved, and the product quality is guaranteed. The lifting assembly may also be a hydraulic cylinder and a push rod.

In the tooth surface quenching device of the rack, two worms at the same end of the disc body are connected into a whole through the connecting rod, and one of the worms is also provided with the rotating wheel. Through the arrangement, the synchronous lifting of the same end of the tray body can be realized, so that the lifting consistency is ensured.

In the tooth surface quenching device of the rack, the driving assembly comprises a motor, a screw rod and a nut, a rotating shaft of the motor is connected with the screw rod and can drive the screw rod to rotate, the nut is fixed at the bottom of the bottom plate, and the screw rod is in transmission connection with the nut. The motor drives the screw rod to rotate, so that the screw rod and the nut fixing base plate can be driven to slide along the sliding block, and the tooth surface of the whole rack can be quenched. The drive assembly may also be a cylinder and pushrod arrangement.

In the tooth surface quenching device of the rack, the bottom of the disk body is also provided with a liquid drainage interface which can be communicated with the mounting cavity of the disk body. The liquid discharge interface can be communicated with the liquid storage barrel through a liquid discharge pipe, and the concentrated recovery treatment of the quenching liquid can be realized.

In the tooth surface quenching device of the rack, the quenching liquid nozzle is positioned at one side of the quenching head, the frame is also provided with the smoke exhaust tube, the smoke exhaust tube is positioned at one side of the quenching liquid nozzle, and the smoke exhaust port of the smoke exhaust tube is opposite to the quenching liquid nozzle. The smoke exhaust tube can intensively exhaust and treat waste smoke generated in the quenching process, and pollution is reduced.

In the tooth surface quenching device of the rack, the disc body is internally provided with the mounting frame, the clamp is arranged on the mounting frame, the mounting frame is provided with the baffle, the disc body is also internally provided with the supporting blocks, and the supporting blocks are positioned on one side of the baffle, which is far away from the clamp. The mounting bracket makes the clamp keep a certain distance from the bottom of the plate body, and the rack is prevented from being soaked by quenching liquid. The supporting shoe can be placed the rack of treating quenching for material loading convenience more, the setting up of supporting shoe is equivalent to and has carried out the bed hedgehopping with the rack of placing above, avoids the rack to be soaked by the quenching liquid simultaneously. The baffle can prevent sparks and the like generated in the quenching process from splashing to the rack placed on the supporting block, influence is caused on the performance of the rack to be quenched, the sparks generated can be also prevented from splashing to the body of a worker, and safety is improved.

Compared with the prior art, the tooth surface quenching device of the rack has the following advantages:

1. the bottom surface of the clamp is designed to be a plane, and the adsorption piece structure is arranged on the quenching disc, so that the adsorption piece can generate adsorption force to firmly adsorb the bottom of the rack to enable the bottom of the rack to be always kept to be tightly attached to the bottom surface of the clamp, and therefore, in the quenching process, even if the rack is heated, the rack cannot deform and upwarp, the tooth surface quenching effect is improved, and the product quality is guaranteed.

2. The quenching disc is arranged to be provided with an installation cavity structure, so that quenching liquid sprayed out in the quenching process cannot flow randomly, can be collected in the installation cavity of the quenching disc in a centralized manner, and is convenient for subsequent recovery and treatment.

3. The relative bottom plate of disk body can be adjusted from top to bottom to can adapt to the rack of various not unidimensional, guarantee that each rack can keep reasonable distance between by the centre gripping back and the quenching head, thereby improve the effect of quenching, guarantee the quality of product.

4. The smoke exhaust tube can intensively exhaust and treat waste smoke generated in the quenching process, and pollution is reduced.

5. The supporting shoe is used for placing the rack of treating quenching, the material loading of being convenient for, and the spark that the baffle can prevent to produce in the quenching process has improved the security performance.

Drawings

Fig. 1 is a schematic structural view of a tooth surface quenching device of a rack clamping the rack in the first embodiment.

Fig. 2 is a perspective view of the tooth surface quenching apparatus of the rack according to the first embodiment.

FIG. 3 is a side view of the tooth surface quenching apparatus of the present rack in accordance with the first embodiment.

Fig. 4 is a sectional view taken in the direction of a-a in fig. 3.

Fig. 5 is a sectional view taken in the direction B-B in fig. 3.

Fig. 6 is a sectional view taken in the direction C-C in fig. 3.

In the figure, 1, a frame; 1a, a first frame body; 1b, a second frame body; 2. quenching the head; 3. a quenching liquid spray head; 4. a clamp; 4a, adsorption holes; 5. a quenching plate; 5a, a tray body; 5a1, mounting cavity; 5a2, a drainage interface; 5b, a bottom plate; 6. a vacuum generator; 7. a slide rail; 8. a slider; 9. a limiting member; 10. a lifting assembly; 10a, a mounting seat; 10b, a worm wheel; 10c, a worm; 10d, lifting screw rods; 11. a connecting rod; 12. a rotating wheel; 13. a motor; 14. a screw rod; 15. a nut; 16. a smoke exhaust tube; 17. a mounting frame; 17a, a baffle plate; 18. a support block; 19. a rack.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.