Quenching device for automobile plate spring

Abstract

The invention relates to the technical field of plate spring machining, in particular to a quenching device for an automobile plate spring. The quenching device for the automobile plate spring can automatically complete feeding and discharging. The quenching device comprises a base which is a bearing main body of the device; the quenching box is fixedly arranged at the top of the base, and quenching liquid is stored in the quenching box; the conveying module is fixedly mounted at the top of the quenching box; the guide plate can be used for outwards guiding out the quenched steel; and the guide plate penetrates out of the rear side wall of the conveying module and can guide the steel to slide backwards. Through the arrangement of the pressing assembly and the guiding assembly, high-temperature steel is conveyed through the conveying module, the steel is guided to the arc pressing machine through cooperation of a baffle and a guiding plate and is pressed and shaped through the arc pressing machine, meanwhile, the rodless air cylinder is used for controlling the arc pressing machine to descend, the steel is immersed in quenching liquid in the quenching box, and the quenching effect is improved. And the plate spring does not need to be in close contact with high-temperature steel manually.

Description

Technical Field

[0001] This invention relates to the field of leaf spring processing technology, and more particularly to a quenching device for automotive leaf springs. Background Technology

[0002] A leaf spring is a mechanical component, typically made of spring steel. They are usually designed in a flat rectangular or elliptical shape with protrusions at both ends for securing. The design of leaf springs allows them to withstand large loads while maintaining relatively stable elasticity, and they are commonly found in the suspension systems of cars, trucks, and other vehicles.

[0003] In the production process of leaf springs, steel is first put into a walking beam furnace for continuous heating. When the steel temperature reaches the preset value, it is sent to a conveyor and transported to a pressing device. The pressing device extrudes and shapes the steel, while simultaneously immersing it in a quenching liquid for quenching treatment to improve its strength. However, the existing pressing device is separate from the conveyor, requiring manual use of steel tongs to clamp the steel onto the pressing device. Since the steel itself is heavy, workers expend a lot of physical strength when clamping it, resulting in a heavy workload. Furthermore, the steel is heated to a high temperature, requiring workers to be in a high-temperature environment for extended periods, which can cause serious harm to their health. Summary of the Invention

[0004] In order to solve the technical problems existing in the prior art, a quenching device for automotive leaf springs that can complete loading and unloading independently is provided.

[0005] A quenching device for automotive leaf springs includes: a base, serving as the main support for the device; a quenching chamber, fixedly mounted on the top of the base and containing quenching fluid; a conveying module, fixedly installed on the top of the quenching chamber, capable of conveying heated steel; a guide plate, capable of guiding the quenched steel outwards; a guide plate, extending through the rear sidewall of the conveying module, capable of guiding the steel backwards; and a pressing assembly, consisting of an arc pressing machine, a rodless cylinder, and a slider, wherein the rodless cylinder is fixedly mounted on the rear sidewall of the quenching chamber. The slider is slidably connected to the rodless cylinder. The arc pressing machine is used to press and form steel and is fixedly connected to the slider, and can move synchronously with the slider. The guide assembly consists of a mounting frame, an electric push rod, a guide frame, and a baffle. The mounting frame is fixedly set at the top center of the conveying module. The guide frame is slidably connected to the mounting frame. The electric push rod is fixedly installed on the top of the mounting frame, and its movable end protrudes from the mounting frame and is fixedly connected to the guide frame. The baffle is fixedly set at the bottom of the guide frame.

[0006] To further explain, the guide plate is located below the conveying module and is inclined inside the quenching box. Its lower end protrudes through the front side wall of the quenching box, and multiple square holes are evenly opened on the top of the guide plate.

[0007] To further explain, the conveying module has a guide plate with a strip-shaped hole for steel to pass through; the baffle is inclined, with its left end slidingly contacting the inner front side wall of the conveying module and its right end slidingly contacting the inner rear side wall of the conveying module.

[0008] To further explain, the arc pressing machine is equipped with an upper mold and a lower mold that fit together, wherein the upper mold is slidable and the lower mold is fixed.

[0009] Further explanation: The quenching chamber is equipped with a cooling circulation assembly, which includes: a water pump, fixedly installed at the bottom of the quenching chamber, capable of drawing quenching liquid from the quenching chamber; a condenser, fixedly installed on the rear side wall of the quenching chamber, and connected to the water pump through a pipe; and a drain pipe, penetrating the rear side wall of the quenching chamber and simultaneously connected to the liquid outlet of the condenser.

[0010] Further explanation: a material pushing assembly is provided between the quenching box and the arc pressing machine. The material pushing assembly includes: a mounting shaft, which is fixedly set on the top of the rear side wall of the quenching box; a top block, which is rotatably set on the mounting shaft, and a torsion spring is provided at the rotatable connection with the mounting shaft; and a top rod, which is slidably set on the rear side of the arc pressing machine and can penetrate the rear side wall of the arc pressing machine to contact the steel.

[0011] To further explain, the top block can only rotate in one direction, and its top is flat while its bottom is sloped; a spring is provided between the top rod and the arc pressing machine, and its rear end can contact the top block.

[0012] Further explanation: A cleaning and collection assembly is provided on the front side of the quenching box. The cleaning and collection assembly includes: a collection frame, which is fixedly installed on the front side of the quenching box and is lower than the front end of the guide plate, and can centrally store the quenched steel; a buffer plate, which is rotatably connected to the collection frame, and can provide buffer protection for the steel that slides off the guide plate; and a brush, which is symmetrically rotatably installed on the collection frame.

[0013] To further explain, the top of the quenching box is equipped with a fumigation assembly, which includes: an exhaust fan, fixedly installed on the top of the rear side wall of the quenching box; an air supply pipe, one end of which is connected to the air inlet of the exhaust fan, and the other end of which extends into the quenching box; and an exhaust pipe, which is located at the air outlet of the exhaust fan and can be connected to an external pipeline.

[0014] Further explanation: The arc pressing machine is equipped with a positioning component, which includes: a guide rod, symmetrically fixedly disposed on the rear side of the arc pressing machine; a sliding sleeve, slidably disposed on the guide rod, and provided with a spring between the sleeve and the guide rod, and also in contact with the upper mold of the arc pressing machine; a support wheel, symmetrically disposed on the rear side of the arc pressing machine in a rotatable manner; a positioning rod, symmetrically disposed through the rear side wall of the arc pressing machine, and capable of sliding on the arc pressing machine and contacting the steel on the arc pressing machine; and a steel wire rope disposed between the sliding sleeve and the positioning rod on the same side.

[0015] The beneficial effects of the present invention are as follows: 1. The present invention uses a conveying module to transport high-temperature steel by setting up a pressing component and a guiding component, and guides the steel to the arc pressing machine by the cooperation of the baffle and the guiding plate, and presses and shapes it by the arc pressing machine. At the same time, the arc pressing machine is controlled to descend by a rodless cylinder, so that the steel is immersed in the quenching liquid in the quenching box, thus completing the quenching operation of the leaf spring without the need for manual close contact with the high-temperature steel.

[0016] 2. By setting up the pusher assembly, after the steel on the arc pressing machine is quenched, the arc pressing machine is raised by the rodless cylinder. When the push rod rises, it will be blocked by the top block and pass through the arc pressing machine along the inclined surface on the push rod, pushing the steel out and out through the guide plate, without the need for manual clamping.

[0017] 3. By setting the positioning components, when the arc pressing machine presses the steel, the upper mold will slide down and contact the sliding sleeve, forcing the sliding sleeve to descend. With the help of the wire rope, the two positioning rods can be brought closer to each other, positioning the steel on the lower mold to the middle position so that it can be pressed and shaped.

[0018] 4. By setting up the cleaning and collection components, the steel that slides off the guide plate can be collected in a unified manner using the collection frame. The steel will first pass through a brush to preliminarily clean the residual quenching liquid on its surface, and the buffer plate will reduce the impact it receives when falling. Attached Figure Description

[0019] Figure 1 A front view is shown according to an embodiment of the present invention.

[0020] Figure 2 A rear view is shown according to an embodiment of the present invention.

[0021] Figure 3 A partial structural schematic diagram according to an embodiment of the present invention is shown.

[0022] Figure 4 A schematic diagram of the pressing component according to an embodiment of the present invention is shown.

[0023] Figure 5A schematic diagram of the structure of the guide component according to an embodiment of the present invention is shown.

[0024] Figure 6 A schematic diagram of the structure of a cooling circulation assembly according to an embodiment of the present invention is shown.

[0025] Figure 7 A schematic diagram of the pusher assembly according to an embodiment of the present invention is shown.

[0026] Figure 8 An enlarged view of part A in an embodiment according to the present invention is shown.

[0027] Figure 9 A schematic diagram of the body structure of the cleaning and collecting component according to an embodiment of the present invention is shown.

[0028] Figure 10 A schematic diagram of the structure of the smoking assembly according to an embodiment of the present invention is shown.

[0029] Figure 11 A schematic diagram of the positioning component according to an embodiment of the present invention is shown.

[0030] Figure 12 A detailed structural schematic diagram of the positioning component according to an embodiment of the present invention is shown.

[0031] In the attached diagrams: 1: Base, 2: Quenching box, 21: Guide plate, 22: Conveying module, 23: Guide plate, 3: Pressing assembly, 31: Arc presser, 32: Rodless cylinder, 33: Slider, 4: Guide assembly, 41: Mounting frame, 42: Electric push rod, 43: Guide frame, 44: Baffle, 5: Cooling circulation assembly, 51: Water pump, 52: Condenser, 53: Drain pipe, 6: Pushing assembly, 61: Top block, 62: Mounting shaft, 63: Top rod, 7: Cleaning and collecting assembly, 71: Collection frame, 72: Buffer plate, 73: Brush, 8: Smoke extraction assembly, 81: Air extractor, 82: Air supply pipe, 83: Exhaust pipe, 9: Positioning assembly, 91: Guide rod, 92: Sliding sleeve, 93: Support wheel, 94: Positioning rod, 95: Steel wire rope. Detailed Implementation

[0032] Preferred embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0033] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects.

[0034] Example 1: A quenching apparatus for automotive leaf springs, please refer to [link / reference]. Figures 1-5 The device includes a base 1, a quenching box 2, a guide plate 21, a conveying module 22, a guide plate 23, a pressing assembly 3, and a guiding assembly 4. The base 1 supports other components of the device. The quenching box 2 is fixedly mounted on top of the base 1 by a snap-fit ​​connection and can store quenching liquid for quenching steel. The conveying module 22 is bolted to the top of the quenching box 2, is heat-resistant, and is used to convey steel. A strip-shaped hole is provided in the middle of its rear side wall for steel to pass through. The guide plate 21 is fixedly mounted inside the quenching box 2 and is angled forward and downward. The guide plate 21 has multiple square holes evenly distributed on its top. The guide plate 23 is positioned at the location of the strip-shaped holes on the rear side wall of the conveying module 22, which can guide the high-temperature steel on the conveying module 22 backward. The pressing component 3 consists of an arc pressing machine 31, a rodless cylinder 32, and a slider 33. The rodless cylinder 32 is fixedly installed on the rear side wall of the quenching box 2 by bolts, and a slider 33 is slidably mounted on the rodless cylinder 32. The arc pressing machine 31 is fixedly connected to the slider 33. The rodless cylinder 32 is activated by the linkage of the slider 33. Cylinder 32 controls the lifting and lowering of the arc pressing machine 31. The arc pressing machine 31 is equipped with a matching upper mold and a lower mold, wherein the upper mold is slidable and the lower mold is fixed. The steel sliding down from the guide plate 23 falls onto the lower mold on the arc pressing machine 31, and with the cooperation of the upper and lower molds, the steel can be pressed into an arc shape. The guide assembly 4 consists of a mounting frame 41, an electric push rod 42, a guide frame 43, and a baffle 44. The mounting frame 41 is fixedly installed in the middle of the top of the conveying module 22 in an embedded manner, and the mounting frame 41 has sliding... A guide frame 43 is provided, and an electric push rod 42 is fixedly installed on the top of the mounting frame 41. Its movable end extends out of the mounting frame 41 and is fixedly connected to the guide frame 43. When the electric push rod 42 extends / contracts, the guide frame 43 will rise / fall accordingly. A baffle 44 is fixedly installed at the bottom of the guide frame 43, and the left end of the baffle 44 slides in contact with the inner front side wall of the conveying module 22, and its right end slides in contact with the inner rear side wall of the conveying module 22. This can guide the steel on the conveying module 22 backward, so that the steel slides through the strip hole on the rear side wall of the conveying module 22 onto the arc pressing machine 31.

[0035] Please see Figure 2 , Figure 7 and Figure 8 A pusher assembly 6 is provided between the quenching box 2 and the arc pressing machine 31. The pusher assembly 6 includes a top block 61, a mounting shaft 62 and a push rod 63. The mounting shaft 62 is fixedly installed on the top of the rear side wall of the quenching box 2 in an embedded manner. The top block 61 is rotatably connected to the mounting shaft 62 through a torsion spring. Its top is flat and its bottom is set as an inclined surface. Initially, it is horizontal and can only rotate downwards. The push rod 63 is slidably connected to the arc pressing machine 31 through a spring, and it can pass through the rear side wall of the arc pressing machine 31 to contact the steel on the lower mold.

[0036] When quenching leaf spring steel using this device, the heated steel can be transported via the conveyor module 22. As the steel moves to the right and contacts the baffle 44, it slides backward along the baffle. After passing through the strip-shaped holes on the rear side wall of the conveyor module 22, it is guided by the guide plate 23 to the lower die on the arc pressing machine 31. The arc pressing machine 31 is then activated, and the cooperation of the upper and lower dies presses the steel into an arc shape. The rodless cylinder 32 is then activated, driving the arc pressing machine 31 to descend, allowing the steel to be immersed in the quenching liquid for quenching. Simultaneously, the push rod 63 engages with the flat surface of the push block 61. When the straight part contacts and presses down, the top block 61 will rotate downwards without obstructing its descent. After quenching, the rodless cylinder 32 is used to raise the arc press machine 31. The top rod 63 will contact the inclined part of the top block 61. Since the top block 61 cannot rotate upwards, the top rod 63 is forced to slide forward along the inclined surface. After passing through the rear side wall of the arc press machine 31, it pushes the steel on the arc press machine 31 out. The steel then falls onto the guide plate 21 and slides forward along the guide plate 21. During the sliding process, the quenching material attached to the steel will drip back into the quenching box 2 through the square holes on the guide plate 21.

[0037] Example II: Based on Example I, please refer to... Figure 2 and Figure 6 The quenching chamber 2 is equipped with a cooling circulation assembly 5, which includes a water pump 51, a condenser 52, and a drain pipe 53. The water pump 51 is fixedly installed at the bottom of the quenching chamber 2 with bolts, and the condenser 52 is fixedly installed on the rear side wall of the quenching chamber 2 with bolts. The two are connected by a pipe. The water pump 51 draws out the quenching liquid with a high temperature in the quenching chamber 2 and transports it to the condenser 52 for cooling through the pipe. The condenser 52 is connected to the quenching chamber 2 through the drain pipe 53. The cooled quenching liquid can be discharged back into the quenching chamber 2 through the drain pipe 53.

[0038] Please see Figure 1 and Figure 9A cleaning and collection assembly 7 is provided on the front side of the quenching box 2. The cleaning and collection assembly 7 includes a collection frame 71, a buffer plate 72, and a brush 73. The collection frame 71 is located on the front side of the quenching box 2, and the front end of the guide plate 21 is aligned with the entrance of the collection frame 71. The steel can slide directly from the guide plate 21 into the collection frame 71 for centralized storage. The brush 73 is rotatably installed on the upper part of the collection frame 71. Before the steel falls into the collection frame 71, the quenching liquid on its surface will be wiped off by the brush. The buffer plate 72 is rotatably installed in the middle of the collection frame 71. Before the steel falls to the bottom of the collection frame 71, it will be buffered by the buffer plate 72, thereby reducing the impact on the steel when it falls.

[0039] Please see Figure 2 and Figure 10 The top of the quenching box 2 is equipped with a fumigation assembly 8, which includes an exhaust fan 81, an air supply pipe 82, and an exhaust stack 83. The exhaust fan 81 is fixedly installed on the top of the rear side wall of the quenching box 2 by a bracket. Its air inlet is connected to the rear end of the air supply pipe 82. The front end of the air supply pipe 82 extends into the quenching box 2. When high-temperature steel is immersed in the quenching liquid, a lot of smoke and dust will be generated. When the exhaust fan 81 is started, in conjunction with the air supply pipe 82, the smoke and dust can be extracted. An exhaust stack 83 is installed at the air outlet of the exhaust fan 81. The exhaust stack 83 can be connected to an external pipeline to discharge the extracted smoke and dust to the outside of the production workshop, thereby maintaining the cleanliness of the production workshop.

[0040] Please see Figure 1 , Figure 11 and Figure 12 The arc pressing machine 31 is equipped with a positioning component 9, which includes a guide rod 91, a sliding sleeve 92, a support wheel 93, a positioning rod 94, and a steel wire rope 95. The guide rod 91 is symmetrically fixed on the rear side of the arc pressing machine 31, and the sliding sleeve 92 is slidably mounted on it by a spring. When the upper mold on the arc pressing machine 31 slides down, it can contact the sliding sleeve 92 and force it to descend together. The support wheel 93 is rotatably mounted on the left and right sides of the rear side wall of the arc pressing machine 31. Two positioning rods 94 are provided, symmetrically extending out of the rear side wall of the arc pressing machine 31. They can slide against the surface of the lower mold of the arc pressing machine 31. A steel wire rope 95 is provided between the positioning rod 94 and the sliding sleeve 92, and the support wheel 93 can support the steel wire rope 95.

[0041] After the steel slides onto the lower die of the arc pressing machine 31, the arc pressing machine 31 is started, causing its upper die to slide downwards. During the sliding process, the upper die will contact the sliding sleeve 92 and press the sliding sleeve 92 to slide downwards along the guide rod 91. The sliding sleeve 92 then pulls the wire rope 95, causing the two positioning rods 94 to move closer to each other along the surface of the lower die and push the steel on the lower die towards the center, so that the subsequent pressing of the steel can be completed better.

[0042] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

[0043] The above are merely optional embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quenching device for automotive leaf springs, characterized in that: include: The base (1) serves as the main support for the device; Quenching box (2) is fixedly installed on the top of the base (1) and contains quenching liquid; The conveying module (22) is fixedly installed on the top of the quenching box (2) and can convey the heated steel. The guide plate (21) can push the quenched steel outward; The guide plate (23) extends through the rear side wall of the conveying module (22) and can guide the steel to slide backward; The pressing assembly (3) consists of an arc pressing machine (31), a rodless cylinder (32), and a slider (33). The rodless cylinder (32) is fixedly installed on the rear side wall of the quenching box (2). The slider (33) is slidably connected to the rodless cylinder (32). The arc pressing machine (31) is used to press and form steel and is fixedly connected to the slider (33), and can move synchronously with the slider (33). The guide assembly (4) consists of a mounting frame (41), an electric push rod (42), a guide frame (43), and a baffle (44). The mounting frame (41) is fixedly installed at the top center of the conveying module (22). The guide frame (43) is slidably connected to the mounting frame (41). The electric push rod (42) is fixedly installed on the top of the mounting frame (41), and its movable end protrudes from the mounting frame (41) and is fixedly connected to the guide frame (43). The baffle (44) is fixedly installed at the bottom of the guide frame (43).

2. A quenching apparatus for automotive leaf springs according to claim 1, characterized in that: The guide plate (21) is located below the conveying module (22) and is inclined inside the quenching box (2). Its lower end protrudes through the front side wall of the quenching box (2), and multiple square holes are evenly opened on the top of the guide plate (21).

3. A quenching apparatus for automotive leaf springs according to claim 2, characterized in that: The conveying module (22) is provided with a guide plate (23) and a strip-shaped hole for steel to pass through; the baffle (44) is inclined, with its left end slidingly contacting the inner front side wall of the conveying module (22) and its right end slidingly contacting the inner rear side wall of the conveying module (22).

4. A quenching apparatus for automotive leaf springs according to claim 3, characterized in that: The arc pressing machine (31) is provided with an upper mold and a lower mold that fit together, wherein the upper mold is slidable and the lower mold is fixed.

5. A quenching apparatus for automotive leaf springs according to claim 4, characterized in that: The quenching box (2) is equipped with a cooling circulation assembly (5), which includes: A water pump (51) is fixedly installed at the bottom of the quenching box (2) and can extract the quenching liquid in the quenching box (2); The condenser (52) is fixedly installed on the rear side wall of the quenching box (2) and connected to the water pump (51) through a pipe; The drain pipe (53) penetrates the rear side wall of the quenching box (2) and is connected to the liquid outlet of the condenser (52).

6. A quenching apparatus for automotive leaf springs according to claim 5, characterized in that: A pusher assembly (6) is provided between the quenching box (2) and the arc pressing machine (31), the pusher assembly (6) comprising: The mounting shaft (62) is fixedly installed on the top of the rear side wall of the quenching box (2); The top block (61) is rotatably mounted on the mounting shaft (62), and a torsion spring is provided at the rotatable connection with the mounting shaft (62); The top rod (63) is slidably disposed on the rear side of the arc pressing machine (31) and can penetrate the rear side wall of the arc pressing machine (31) to contact the steel.

7. A quenching apparatus for automotive leaf springs according to claim 6, characterized in that: The top block (61) can only rotate in one direction, and its top is flat and its bottom is set as a slope; a spring is provided between the top rod (63) and the arc presser (31), and its rear end can contact the top block (61).

8. A quenching apparatus for automotive leaf springs according to claim 7, characterized in that: A cleaning and collection assembly (7) is provided on the front side of the quenching box (2), and the cleaning and collection assembly (7) includes: The collection box (71) is fixedly set on the front side of the quenching box (2) and its height is lower than the front end of the guide plate (21), which can centrally store the quenched steel. The buffer plate (72) is rotatably connected to the collection frame (71) and can provide buffer protection for steel that slides off the guide plate (21); A brush (73) is symmetrically rotated and positioned on the collection frame (71).

9. A quenching apparatus for automotive leaf springs according to claim 8, characterized in that: The top of the quenching box (2) is provided with a fumigation assembly (8), the fumigation assembly (8) comprising: A vacuum pump (81) is fixedly installed on the top of the rear side wall of the quenching box (2); The gas supply pipe (82) is connected at one end to the air inlet of the air pump (81) and at the other end extends into the quenching box (2); An exhaust pipe (83) is provided at the outlet of the air extractor (81) and can be connected to an external pipe.

10. A quenching apparatus for automotive leaf springs according to claim 9, characterized in that: The arc pressing machine (31) is provided with a positioning component (9), the positioning component (9) comprising: Guide rods (91) are symmetrically fixed on the rear side of the arc pressing machine (31); The sliding sleeve (92) is slidably disposed on the guide rod (91) and a spring is provided between it and the guide rod (91). It can also contact the upper mold of the arc pressing machine (31). Support wheels (93) are symmetrically arranged at the rear of the arc pressing machine (31) in a rotating manner; The positioning rod (94) is symmetrically arranged through the rear side wall of the arc pressing machine (31) and can slide on the arc pressing machine (31) and contact the steel on the arc pressing machine (31); A steel wire rope (95) is disposed between the sliding sleeve (92) and the positioning rod (94) on the same side.

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