Continuous machining and quenching device for automobile plate spring

Abstract

The invention relates to the technical field of plate spring machining, in particular to an automobile plate spring continuous machining and quenching device which comprises a main shaft, a rotary drum and a transmission sleeve, the rotary drum and the transmission sleeve are rotatably mounted on the main shaft, the transmission sleeve is used for transmitting power for rotation of the rotary drum, and a plurality of shaping structures are annularly distributed on the circumferential outer wall of the rotary drum. The shaping structure is composed of a first shaping plate and a second shaping plate which are used for extruding the plate spring and shaping the plate spring. The plate springs are continuously immersed in the quenching medium one by one in a rotating mode, so that the continuous quenching machining mode of the plate springs can be achieved, the working efficiency is effectively improved, the quenching mode is simplified, meanwhile, due to the fact that feeding and discharging positions and quenching positions are fixed, many workers do not need to cooperate for quenching work, manpower is saved, and the production efficiency is improved. And the volume of the quenching bath can be properly reduced, so that the occupied area is effectively reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plate spring processing, in particular to an automobile plate spring continuous processing quenching device. BACKGROUND

[0002] The automobile plate spring is the core bearing and elastic element of the vehicle suspension system, and its performance is directly related to the carrying capacity, riding comfort and safety of the vehicle. In order to withstand long-term, complex alternating stress and impact load, the plate spring must have extremely high strength, excellent fatigue resistance and good toughness. In the manufacturing process chain of the plate spring, heat treatment, especially the quenching process, is a decisive link to give key mechanical properties. The quenching process realizes the transformation to high hardness and high strength martensite structure by rapidly cooling the plate spring heated to austenitizing temperature, which is the basis for the plate spring to meet the design load and service life requirements.

[0003] The traditional quenching method is to arrange multiple quenching devices for extruding and shaping the plate spring on a long strip-shaped quenching pool. At the same time, the structure can immerse the plate spring in the quenching medium. When the plate spring quenching is completed, the structure floats away from the quenching medium and opens, and the finished plate spring is taken out. A conveying belt is arranged in front of multiple structures to convey the heated plate spring to different quenching devices. This method needs to be equipped with a worker in front of each quenching device to facilitate the feeding and discharging work, which consumes a lot of manpower, and the cost of multiple devices is large, and the land occupation of the quenching pool is large, which gradually cannot meet the requirements of modern industrial production. SUMMARY

[0004] To solve the above technical problems, the present application provides an automobile plate spring continuous processing quenching device, which adopts the following specific technical scheme: The automobile plate spring continuous processing quenching device of the present application comprises a main shaft, a rotating drum and a transmission sleeve, the transmission sleeve is used for transmitting power for the rotation of the rotating drum, the circumferential outer wall of the rotating drum is annularly arranged with a plurality of shaping structures, and the shaping structure is composed of a shaping plate one and a shaping plate two for extruding and shaping the plate spring.

[0005] Further, a tail plate and two side stops are arranged between the shaping plate one and the shaping plate two, the tail plate is installed at one end of the shaping plate one, the shaping plate two is slidingly connected with the tail plate, the two side stops are respectively installed at both sides of the shaping plate two, and the shaping plate one, the shaping plate two, the tail plate and the two side stops form an open horizontal cylindrical structure.

[0006] Further, the shaping structure further comprises a support column connected with the rotating drum, the support column is connected with the shaping plate through a sliding seat I and a linear guide rail which are used in cooperation with each other, and the drum-shaped structure reciprocates in the radial direction of the support column through the sliding seat I and the linear guide rail.

[0007] Further, the support column is rotatably arranged on the rotating drum.

[0008] Further, a plurality of roller pressing columns for extruding the leaf spring are arranged on the shaping plate I and the shaping plate II, and the roller pressing columns are connected with the corresponding shaping plate I or the shaping plate II through a torsion spring.

[0009] Further, the shaping structure further comprises an arc-shaped guide rail which is slidably connected with the side stop frame, the sliding direction of the side stop frame on the arc-shaped guide rail is parallel to the sliding direction of the linear guide rail on the sliding seat I, a sliding seat II is slidably arranged on the arc-shaped guide rail, and the sliding seat II is connected with the rotating drum through an oil cylinder.

[0010] Further, a fixing disc is fixedly connected with the main shaft inside the rotating drum, a guide groove is arranged on the fixing disc, the guide groove is composed of an arc-shaped groove I and a wave-shaped groove, a plurality of sliding columns I are slidably arranged in the guide groove, a sliding rod is arranged on each sliding column I, the sliding rod slides out to the outside of the rotating drum, a guide ring is arranged on each linear guide rail, a sliding seat III is slidably arranged on the guide ring, and the sliding seat III is rotatably connected with the sliding rod through a connecting rod.

[0011] Further, a fixing sleeve which is opposite to the main shaft is arranged on the inner side of the rotating drum, two arc-shaped grooves II and two arc-shaped grooves III are alternately arranged on the circumferential outer wall of the fixing sleeve, the two arc-shaped grooves II and the two arc-shaped grooves III form an annular groove, the axis of the arc-shaped groove III intersects with the axis of the main shaft and is perpendicular to each other. A sliding column II is slidably arranged in the annular groove, the end of the support column penetrates into the inside of the rotating drum, the support column is connected with the sliding column II through a connecting arm, the sliding column II penetrates through the connecting arm and slides relatively, and the sliding column II is connected with the connecting arm through a spring.

[0012] The beneficial effects of the present application are as follows: By adopting the rotating mode, the leaf spring is continuously immersed in the quenching medium one by one, so that the continuous quenching processing mode of the leaf spring can be realized, the working efficiency is effectively improved, the quenching mode is simplified, and since the feeding and discharging positions and the quenching position are fixed, a large number of workers are not needed to cooperate with the quenching work, manpower is saved, the volume of the quenching pool can be appropriately reduced, and the land occupation area is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0014] Figure 1 is a structural schematic diagram of the present application; Figure 2 is a structural schematic diagram of the shaping structure in the embodiment of the present application; Figure 3 is Figure 2 is a schematic diagram of the explosion structure; Figure 4 is a schematic diagram of the internal structure of the rotating drum in the embodiment of the present application.

[0015] Reference signs: 1, main shaft; 2, rotating drum; 3, transmission sleeve; 4, shaping structure; 5, shaping plate one; 6, shaping plate two; 7, tail plate; 8, side stopper; 9, support column; 10, slide one; 11, linear guide rail; 12, roller pressing column; 13, arc-shaped guide rail; 14, slide two; 15, oil cylinder; 16, fixed disc; 17, arc-shaped groove one; 18, wave groove; 19, slide column one; 20, slide rod; 21, guide ring; 22, slide three; 23, connecting rod; 24, fixed sleeve; 25, arc-shaped groove two; 26, arc-shaped groove three; 27, slide column two; 28, connecting arm; 29, spring. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments.

[0017] In the description of the present application, it should be noted that the orientations or position relationships indicated by the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like are based on the orientations or position relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0018] In the description of the present application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments are written in a progressive manner.

[0019] As shown in Figures 1 to 4 The present application is a continuous quenching device for automobile leaf spring, comprising a main shaft 1, a rotating drum 2 and a transmission sleeve 3, the transmission sleeve 3 is used to transmit power for the rotation of the rotating drum 2, and a plurality of shaping structures 4 are arranged in a ring shape on the circumferential outer wall of the rotating drum 2, the shaping structure 4 is composed of a shaping plate one 5 and a shaping plate two 6 for extruding the leaf spring and shaping it.

[0020] In the present application, the main shaft 1 is coaxial with the rotating drum 2 and the transmission sleeve 3, the main shaft 1 can support the rotating drum 2 and the transmission sleeve 3, the rotating drum 2 and the transmission sleeve 3 are connected together by welding, bolts or other means, the motor can provide rotating power for the rotating drum 2 through the transmission sleeve 3, the rotating drum 2 can drive the plurality of shaping structures 4 on it to move synchronously in a circle, each shaping structure 4 can clamp and shape the leaf spring, so that the rotating drum 2 can carry a plurality of leaf springs to move in a circle, and each leaf spring can be immersed in the quenching pool below the rotating drum 2 in turn; since the quenching position of the leaf spring is fixed, the volume of the quenching pool can be reduced to meet the requirement of quenching a single leaf spring; In use, the rotating drum 2 rotates on the main shaft 1, and the plurality of shaping structures 4 rotate synchronously, taking two positions on the left and right sides of the main shaft 1 as examples, which are set as the feeding position and the discharging position respectively, when the shaping structure 4 moves to the feeding position, the shaping plate one 5 and the shaping plate two 6 on the shaping structure 4 are separated, the leaf spring can be placed between the shaping plate one 5 and the shaping plate two 6, and the shaping plate one 5 and the shaping plate two 6 are closed to press and bend the leaf spring, as the rotating drum 2 rotates, the shaping structure 4 carries the leaf spring to immerse in the quenching medium in the quenching pool, thereby the quenching medium is used to quench and cool the leaf spring, when the leaf spring moves to the discharging position, the quenching of the leaf spring is completed, and the shaping plate one 5 and the shaping plate two 6 are separated, thereby the leaf spring is taken away; by the continuous rotation of the rotating drum 2, the continuous quenching of the leaf spring can be realized; By adopting the rotating mode to immerse the leaf spring in the quenching medium one by one and continuously, the continuous quenching processing mode of the leaf spring can be realized, the working efficiency is effectively improved, and the quenching mode is simplified, at the same time, since the feeding and discharging positions and the quenching position are fixed, a large number of workers are not needed to cooperate to perform the quenching work, manpower is saved, and the volume of the quenching pool can be appropriately reduced, thereby the occupied area is effectively reduced.

[0021] Further, the tail plate 7 is installed at one end of the first shaping plate 5, and the second shaping plate 6 is in sliding connection with the tail plate 7, and the side stoppers 8 are installed at the two sides of the second shaping plate 6, and the first shaping plate 5, the second shaping plate 6, the tail plate 7 and the side stoppers 8 form an open horizontal cylindrical structure; When loading, if only the first shaping plate 5 and the second shaping plate 6 are provided, the worker needs to continuously hold the plate spring until the first shaping plate 5 and the second shaping plate 6 are completely closed and hold the plate spring, and at the same time, when unloading, the plate spring needs to be held before the first shaping plate 5 and the second shaping plate 6 release the plate spring to avoid the plate spring from falling off, which is relatively complicated to operate. The tail plate 7 and the side stoppers 8 are used to block one side of the front and back and left and right sides of the first shaping plate 5 and the second shaping plate 6, so that the first shaping plate 5, the second shaping plate 6, the tail plate 7 and the side stoppers 8 form a cylindrical structure, so that when loading, the plate spring only needs to be inserted into the cylindrical structure, without the need for long-time auxiliary holding of the plate spring and waiting for the closing of the first shaping plate 5 and the second shaping plate 6, and when unloading, the plate spring only needs to be taken out of the cylindrical structure, without the need for auxiliary holding of the plate spring before the first shaping plate 5 and the second shaping plate 6 are separated, which is more simple, convenient and practical in operation.

[0022] Further, the shaping structure 4 further comprises a support column 9 connected with the rotating drum 2, and the support column 9 is connected with the first shaping plate 5 through the sliding seat 10 and the linear guide rail 11 used in cooperation, and the cylindrical structure reciprocates in the radial direction of the support column 9 through the sliding seat 10 and the linear guide rail 11; The support column 9 can support the first shaping plate 5 through the sliding seat 10 and the linear guide rail 11, thereby supporting the shaping structure 4. Since the shaping structure 4 can reciprocate through the sliding seat 10 and the linear guide rail 11, the plate spring reciprocates when entering the quenching medium, which is mainly to break the vapor film generated on the surface of the high-temperature plate spring when the plate spring is immersed in the quenching medium, so as to facilitate the rapid transfer of heat from the plate spring to the quenching medium, improve the cooling speed, and improve the uniformity of cooling, prevent deformation and cracking, and ensure the required microstructure and hardness.

[0023] Further, the support column 9 is rotatably arranged on the rotating drum 2; Since the first shaping plate 5, the second shaping plate 6, the tail plate 7 and the side stoppers 8 form a cylindrical structure, when loading, the opening of the cylindrical structure can be inclined upward, at this time, the plate spring only needs to be automatically slid into the cylindrical structure, and when unloading, the opening of the cylindrical structure is inclined downward, and the plate spring after quenching is automatically slid out, thereby realizing the automatic loading and unloading of the plate spring; of course, in actual use, the loading position and the unloading position can be provided with inclined conveying belts to facilitate cooperation with the cylindrical structure.

[0024] Further, the shaping plate one 5 and the shaping plate two 6 are arranged with a plurality of roller columns 12 for extruding the plate spring, and the roller column 12 is connected with the corresponding shaping plate one 5 or the shaping plate two 6 through a torsion spring; When the shaping plate one 5 and the shaping plate two 6 are close to each other, a plurality of roller columns 12 can be pushed to move synchronously and extrude the plate spring, so as to reduce the contact area between the shaping structure 4 and the plate spring, facilitate the contact between the plate spring and the oil, and because the shaping structure 4 can reciprocate on the supporting column 9, when the shaping structure 4 drives the plate spring to swing, the plate spring will drive the roller column 12 to roll due to inertia, at this time, the contact position between the roller column 12 and the plate spring changes, thereby exposing the originally blocked position, so as to facilitate the plate spring to fully contact with the quenching medium; the setting of the torsion spring on the roller column 12 can limit the rotation angle of the roller column 12, so as to avoid that the rotation angle of the roller column 12 is too large or the plate spring moves too far due to inertia, and facilitate the plate spring to be always limited in the cylindrical structure.

[0025] Further, the shaping structure 4 further comprises an arc-shaped guide rail 13 slidably connected with the side stopper 8, the sliding direction of the side stopper 8 on the arc-shaped guide rail 13 is parallel to the sliding direction of the linear guide rail 11 on the sliding seat one 10, and a sliding seat two 14 is slidably arranged on the arc-shaped guide rail 13, and the sliding seat two 14 is connected with the rotating cylinder 2 through an oil cylinder 15; Because the shaping plate one 5 and the shaping plate two 6 need to be close to or away from each other, and the shaping structure 4 can swing and tilt with the supporting column 9, in order to meet the above requirements, the structure of the arc-shaped guide rail 13, the sliding seat two 14 and the oil cylinder 15 can be adopted, when the shaping structure 4 tilts, the side stopper 8 moves synchronously and drives the arc-shaped guide rail 13 to slide on the sliding seat two 14, when the shaping structure 4 swings, the side stopper 8 slides on the arc-shaped guide rail 13, and when the distance between the shaping plate one 5 and the shaping plate two 6 needs to be adjusted, the oil cylinder 15 extends and retracts and drives the shaping plate two 6 to move; It should be pointed out that the two side stoppers 8 can be slidably connected with the shaping plate one 5, so as to realize the connection between the shaping plate one 5 and the shaping plate two 6 by the two side stoppers 8.

[0026] Further, the rotating cylinder 2 is internally provided with a fixed disc 16 fixedly connected with the main shaft 1, the fixed disc 16 is provided with a guide groove composed of an arc-shaped groove one 17 and a wave-shaped groove 18, a plurality of slide columns one 19 are slidably arranged in the guide groove, each slide column one 19 is provided with a slide rod 20, the slide rod 20 slides out to the outside of the rotating cylinder 2, each linear guide rail 11 is provided with a guide ring 21, the guide ring 21 is slidably provided with a sliding seat three 22, and the sliding seat three 22 is rotatably connected with the slide rod 20 through a connecting rod 23; The main shaft 1 passes through the rotating drum 2, and the fixing disc 16 is fixed on the main shaft 1; when the rotating drum 2 rotates, the rotating drum 2 drives the slide rod 20 to drive the slide column I 19 to move in the guide groove; when the slide column I 19 slides in the arc-shaped groove I 17, the distance between the slide column I 19 and the main shaft 1 is constant, at this time, the slide rod 20 is relatively static with the rotating drum 2; when the slide column I 19 moves below the main shaft 1 and slides in the wave-shaped groove 18, the distance between the slide column I 19 and the main shaft 1 reciprocates, at this time, the slide rod 20 reciprocates on the rotating drum 2; the slide rod 20 drives the linear guide rail 11 to reciprocate on the slide base I 10 through the guide ring 21, the slide base III 22 and the connecting rod 23, thereby making the shaping structure 4 swing; the guide ring 21 and the slide base III 22 are relatively rotatable when the supporting column 9 rotates.

[0027] Further, the inside of the rotating drum 2 is provided with a fixed sleeve 24 which is relatively fixed with the main shaft 1; the circumferential outer wall of the fixed sleeve 24 is provided with two arc-shaped grooves II 25 and two arc-shaped grooves III 26 which form an annular groove; the axis of the arc-shaped groove III 26 intersects with the axis of the main shaft 1 and is perpendicular to each other; The slide column II 27 is slidably arranged in the annular groove; the end of the supporting column 9 passes through the rotating drum 2 and extends into the inside of the rotating drum 2; the supporting column 9 is connected with the slide column II 27 through the connecting arm 28; the slide column II 27 passes through the connecting arm 28 and relatively slides; the slide column II 27 is connected with the connecting arm 28 through the spring 29.

[0028] In the present application, the fixed sleeve 24 is fixedly sleeved on the main shaft 1; when the rotating drum 2 rotates, the supporting column 9 moves synchronously; the supporting column 9 pushes the slide column II 27 to slide in the annular groove through the connecting arm 28; when the slide column II 27 slides in the arc-shaped groove II 25, the supporting column 9 is static relative to the rotating drum 2; when the slide column II 27 slides in the arc-shaped groove III 26, the slide column II 27 is displaced in the direction of the axis of the main shaft 1; at this time, the slide column II 27 drives the supporting column 9 to rotate through the connecting arm 28, thereby providing power for the inclination of the shaping structure 4; when the slide column II 27 moves in the direction of the axis of the main shaft 1, the slide column II 27 can slide on the connecting arm 28, and the spring 29 is elastically deformed, thereby avoiding the slide column II 27 and the annular groove from being mutually stuck.

[0029] It should be noted that the two arc-shaped grooves III 26 are respectively on the left and right sides of the main shaft 1, and the two arc-shaped grooves III 26 correspond to the feeding and discharging positions; the two arc-shaped grooves II 25 are respectively on the upper and lower sides of the main shaft 1, so that the swinging and inclination movements of the shaping structure 4 are not simultaneously performed.

[0030] The above merely is the preferred embodiment of the present application, it should be pointed out that, for ordinary skilled in the art, without departing from the technical principles of the present application, can also make several improvements and variations, these improvements and variations also should be considered as the protection scope of the present application.

Claims

1. An apparatus for continuous quenching of automotive leaf springs, characterized by, The utility model provides a kind of main shaft and rotating installation on the main shaft rotating drum, transmission sleeve, the transmission sleeve is used to transmit power for the rotation of the drum, the circumferential outer wall of the drum is annularly arranged with several shaping structures, the shaping structure is made of shaping plate one and shaping plate two for extruding leaf spring and making it shaped.

2. The apparatus for continuous quenching of a leaf spring for an automobile according to claim 1, wherein Tailgate and two side stops are arranged between the shaping plate one and the shaping plate two, the tailgate is installed at one end of the shaping plate one, and the shaping plate two is slidably connected with the tailgate, the two side stops are respectively installed on the two sides of the shaping plate two, and the shaping plate one, the shaping plate two, the tailgate and the two side stops form an open horizontal cylindrical structure.

3. The apparatus for continuous quenching of a leaf spring for an automobile according to claim 2, wherein The shaping structure further includes a support column connected with the drum, the support column and the shaping plate one are connected through a sliding seat one and a linear guide rail used in cooperation, and the cylindrical structure reciprocates in the radial direction of the support column through the sliding seat one and the linear guide rail.

4. The apparatus for continuous quenching of a leaf spring for an automobile according to claim 3, wherein The support column is rotatably arranged on the drum.

5. The apparatus for continuous quenching of a leaf spring for an automobile according to claim 4, wherein The shaping plate one and the shaping plate two are both arranged with a plurality of roller columns for extruding the leaf spring, and the roller columns are connected with the corresponding shaping plate one or shaping plate two through torsion springs.

6. The apparatus for continuous quenching of a leaf spring for an automobile according to claim 5, wherein The shaping structure further includes an arc-shaped guide rail slidably connected with the side stops, and the sliding direction of the side stops on the arc-shaped guide rail is parallel to the sliding direction of the linear guide rail on the sliding seat one, a sliding seat two is slidably arranged on the arc-shaped guide rail, and the sliding seat two is connected with the drum through an oil cylinder.

7. The apparatus for continuous quenching of a leaf spring for an automobile according to claim 6, wherein The inside of the drum is provided with a fixed disc fixedly connected with the main shaft, the fixed disc is provided with a guide groove, the guide groove is composed of an arc-shaped groove one and a wave groove, a plurality of sliding columns one are slidably arranged in the guide groove, a sliding rod is arranged on each sliding column one, the sliding rod slides out to the outside of the drum, a guide ring is arranged on each linear guide rail, a sliding seat three is slidably arranged on the guide ring, and the sliding seat three is rotatably connected with the sliding rod through a connecting rod.

8. The apparatus for continuous quenching of a leaf spring for an automobile according to claim 7, wherein The inside of the drum is provided with a fixed sleeve fixedly connected with the main shaft, two arc-shaped grooves two and two arc-shaped grooves three are alternately arranged on the circumferential outer wall of the fixed sleeve, and the two arc-shaped grooves two and the two arc-shaped grooves three form an annular groove, the axis of the arc-shaped groove three intersects with the axis of the main shaft and is perpendicular to each other. A sliding column two is slidably arranged in the annular groove, the end of the support column penetrates the drum and extends into the inside of the drum, the support column is connected with the sliding column two through a connecting arm, the sliding column two penetrates the connecting arm and slides relatively, and the sliding column two and the connecting arm are connected through a spring.

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