Automatic forming machine for plate spring quenching

Abstract

The application discloses a plate spring quenching automatic forming machine and relates to the technical field of plate spring machining. The plate spring quenching automatic forming machine comprises a frame, an upper die and a lower die arranged in the frame, a middle pressing oil cylinder fixedly installed at the middle part of the top end of the frame, and servo pressing oil cylinders arranged at the left and right sides of the middle pressing oil cylinder, and the upper die, the lower die, the middle pressing oil cylinder and the servo pressing oil cylinders are connected with an external control device. The upper die comprises a fixed plate I which is installed on the frame in a vertical sliding mode, a guide block is fixedly installed at the middle part of the fixed plate I, a guide rod is installed in the guide block in a vertical sliding mode, and an upper pressing plate is fixedly installed at the lower end of the guide rod. The plate spring quenching automatic forming machine is designed in a split adjusting and integral molding mode, the radius of the plate spring can be flexibly adjusted, in addition, the automatic design reduces manual intervention, the whole process from workpiece fixing to forming is automatically completed by the machine, the machining cycle is greatly shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of leaf spring processing technology, specifically to an automatic leaf spring quenching and forming machine. Background Technology

[0002] Traditional leaf springs are formed by hot pressing using a quenching machine during quenching. This requires a pattern maker to make a pattern by hand first, and then a mold maker to manually adjust the quenching machine according to the pattern before hot pressing. The curvature of the product depends entirely on the skill level of the pattern maker and the mold maker, which is slow and inefficient.

[0003] Therefore, it is necessary to propose an automatic forming machine for quenching leaf springs to solve the above problems. Summary of the Invention

[0004] Technical problem to be solved: The purpose of this invention is to provide an automatic forming machine for leaf spring quenching, so as to solve the problem mentioned in the background art that the traditional leaf spring is formed by hot pressing with a quenching machine during quenching, which requires a pattern maker to make a pattern by hand first, and then a mold maker to manually adjust the quenching machine according to the pattern before hot pressing. The curvature of the product depends entirely on the skill level of the pattern maker and the mold maker, which is slow and inefficient.

[0005] Technical Solution: To achieve the above objectives, the present invention provides the following technical solution: An automatic forming machine for quenching leaf springs, comprising a frame, an upper mold, a lower mold, a central pressing cylinder fixedly installed at the top center of the frame, and servo pressing cylinders on the left and right sides of the central pressing cylinder, all disposed within the frame. The upper mold, lower mold, central pressing cylinder, and left and right servo pressing cylinders are all connected to external control equipment. The upper mold includes a fixed plate I slidably mounted vertically on the frame. A guide block is fixedly installed in the middle of the fixed plate I. A guide rod is slidably mounted vertically inside the guide block. An upper pressing plate is fixedly installed at the lower end of the guide rod. The output ends of the two outermost pressing cylinders are hinged to the fixed plate I, and the output end of the central pressing cylinder is fixedly connected to the upper end of the guide rod. The lower mold includes a fixed plate II fixedly mounted on the frame. A support block is fixedly installed on the front side of the fixed plate II. The support block is located directly below the upper pressing plate, and a lower pressing plate is fixedly installed on the top of the support block. Both the upper and lower molds include adjustment mechanisms, which include adjustment components symmetrically arranged on the left and right sides of the frame. Each adjustment component includes a U-shaped plate, a clamping cylinder, and a hydraulic cylinder assembly located on the opposite side of the upper and lower molds. The hydraulic cylinder assembly includes multiple servo hydraulic cylinders spaced laterally. Multiple clamping plates are slidably installed within the U-shaped plate, dividing it into multiple chambers. Each chamber has a vertically slidable clamping head. A connecting seat is fixedly installed at the output end of the servo hydraulic cylinder, and a T-block is fixedly installed at the other end of the connecting seat. A slot adapted to the T-block is provided at the end of the clamping head near the T-block. The U-shaped plate and hydraulic cylinder assembly on the upper mold are fixedly connected to fixed plate I, and the U-shaped plate and hydraulic cylinder assembly on the lower mold are fixedly connected to fixed plate II. The clamping cylinders are fixedly installed on the opposite side of the adjacent adjustment components. A through hole is provided on the side wall of the U-shaped plate near the clamping cylinder, through which the output end of the clamping cylinder extends into the U-shaped plate.

[0006] Preferably, two sliders are fixedly installed on the side of the fixed plate I away from the adjustment mechanism. The two sliders are symmetrically arranged on the left and right sides of the fixed plate I. Each slider is equipped with a slide rail that slides vertically, and both slide rails are fixedly connected to the frame.

[0007] Preferably, the clamping plate is cross-shaped, and the opposite surfaces of the fixing plate I and the U-shaped plate, as well as the fixing plate II and the U-shaped plate, are provided with transverse grooves, and the two ends of the clamping plate are respectively inserted into the grooves of the adjacent ends.

[0008] Beneficial Effects: Compared with existing technologies, this invention provides an automatic forming machine for leaf spring quenching. This machine has a unique structure and is easy to use. After the operator adjusts the leaf spring parameters on the computer, the control system automatically controls the adjustment mechanisms of the upper and lower dies. Servo hydraulic cylinders adjust the positions of the clamping heads of the upper and lower dies, and clamping cylinders fix the clamping heads by compression to prevent changes in the shape of the upper and lower dies. The workpiece is placed on the lower die, and the intermediate pressing cylinder is activated. Its output end extends a push guide rod that moves downward, thereby pushing the upper pressure plate to move and fix the workpiece. After fixing, the left and right servo pressing cylinders are activated to drive the fixing plate I downward, thus extruding and forming the workpiece. Through the design of separate adjustment and overall molding, the curvature of the leaf spring can be flexibly adjusted. Furthermore, the automated design reduces manual intervention; the entire process from workpiece fixing to forming is completed automatically by the machine, greatly shortening the processing cycle and improving production efficiency. Attached Figure Description

[0009] Figure 1 This is a front view schematic diagram of the structure of the present invention;

[0010] Figure 2 This is a three-dimensional side view of the upper mold structure of the present invention;

[0011] Figure 3 This is a three-dimensional front view schematic diagram of the upper mold structure of the present invention;

[0012] Figure 4 This is a three-dimensional schematic diagram of the lower mold structure of the present invention;

[0013] Figure 5 For the present invention Figure 3 Enlarged schematic diagram of the structure in area A.

[0014] In the diagram: 1. Frame; 2. Upper mold; 21. Fixed plate I; 22. Slide rail; 23. Slider; 24. Guide block; 25. Guide rod; 26. Upper pressure plate; 3. Lower mold; 31. Fixed plate II; 32. Support block; 33. Lower pressure plate; 4. Adjustment mechanism; 41. U-shaped plate; 42. Clamping plate; 43. Clamping cylinder; 44. Servo hydraulic cylinder; 45. Connecting seat; 46. T-block; 47. Chuck; 5. Intermediate lower pressure cylinder; 6. Servo lower pressure cylinder. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Example 1: This Example 1 provides an automatic forming machine for quenching leaf springs. It is a direct improvement on existing leaf spring forming equipment, with a unique structure. Please refer to [link / reference]. Figure 1-5As shown, the system includes a frame 1, an upper mold 2, a lower mold 3, a central pressing cylinder 5 fixedly installed at the top center of the frame 1, and servo pressing cylinders 6 on the left and right sides of the central pressing cylinder 5. The upper mold 2, lower mold 3, central pressing cylinder 5, and left and right servo pressing cylinders 6 are all connected to external control equipment. There are various options for the control equipment, such as existing equipment like computers. The internal structure and working principle of these devices will not be described in detail. The upper mold 2 includes a fixed plate I 21 that slides vertically on the frame 1. A guide block 24 is fixedly installed in the middle of the fixed plate I 21. A guide rod 25 slides vertically inside the guide block 24. An upper pressure plate 26 is fixedly installed at the lower end of the guide rod 25. The output ends of the left and right servo pressing cylinders 6 are hinged to the fixed plate I 21, and the output end of the central pressing cylinder 5 is fixedly connected to the upper end of the guide rod 25.

[0017] There are several ways to install the fixed plate I 21. For example, two sliders 23 are fixedly installed on the side of the fixed plate I 21 away from the adjusting mechanism 4. The two sliders 23 are symmetrically arranged on the left and right sides of the fixed plate I 21. Each slider 23 has a slide rail 22 that slides vertically. Both slide rails 22 are fixedly connected to the frame 1. The lower mold 3 includes a fixed plate II 31 fixedly installed on the frame 1. A support block 32 is fixedly installed on the front side of the fixed plate II 31. The support block 32 is located directly below the upper pressure plate 26, and a lower pressure plate 33 is fixedly installed on the top of the support block 32. Both the upper mold 2 and the lower mold 3 also include an adjusting mechanism 4. The adjusting mechanism 4 includes adjusting components symmetrically arranged on the left and right sides of the frame 1. The adjusting components include a U-shaped plate 41, a clamping cylinder 43, and a hydraulic cylinder group arranged on the side of the upper mold 2 and the lower mold 3 away from each other. The hydraulic cylinder group includes multiple servo hydraulic cylinders 44 arranged at horizontal intervals.

[0018] Multiple clamping plates 42 are slidably installed laterally within the U-shaped plate 41, dividing the U-shaped plate 41 into multiple chambers. Each chamber has a vertically slidable clamping head 47. A connecting seat 45 is fixedly installed at the output end of the servo hydraulic cylinder 44, and a T-block 46 is fixedly installed at the other end of the connecting seat 45. The clamping head 47 has a slot near the T-block 46 that matches the T-block 46. The clamping plates 42 can be installed in various ways, such as a cross-shaped clamping plate 42, fixing plate I 21 to the U-shaped plate 41, and... The fixed plate II 31 and the U-shaped plate 41 are both provided with transverse grooves on their opposite surfaces. The two ends of the clamping plate 42 are respectively inserted into the grooves of the adjacent ends. The U-shaped plate 41 on the upper mold 2 and the hydraulic cylinder group are both fixedly connected to the fixed plate I 21. The U-shaped plate 41 on the lower mold 3 and the hydraulic cylinder group are both fixedly connected to the fixed plate II 31. The clamping cylinder 43 is fixedly installed on the side of the adjacent adjustment components that are far away from each other. The side wall of the U-shaped plate 41 near the clamping cylinder 43 is provided with a through hole. The output end of the clamping cylinder 43 extends into the U-shaped plate 41 through the through hole.

[0019] Working principle: When the operator uses this forming machine to process the leaf spring, the parameters of the leaf spring are first adjusted on the computer. Then, the computer control system automatically controls the servo hydraulic cylinder 44 to adjust the position of each clamp 47, and simultaneously activates multiple clamping cylinders 43. The clamping cylinders 43 fix the clamps 47 by squeezing, preventing the shape of the upper mold 2 and the lower mold 3 from changing. Then, the workpiece is placed on the lower mold 3, and the middle pressing cylinder 5 is activated. The output end of the middle pressing cylinder 5 extends, thereby pushing the guide rod 25 downward, which in turn pushes the upper pressure plate 26 to move, fixing the workpiece. After fixing, the left and right servo pressing cylinders 6 are activated at the same time. The left and right servo pressing cylinders 6 drive the fixing plate I 21 downward to the set position, thereby extruding and forming the workpiece. This forming machine, through its split adjustment and overall molding design, can flexibly adjust the curvature of the leaf spring.

[0020] Example 2: The difference between Example 2 and Example 1 is that an infrared sensor is provided on the fixing plate II 31 above the lower pressure plate 33. The infrared sensor is also connected to the computer. When the operator is processing the leaf spring, he only needs to place the workpiece on the lower mold 3. When the infrared sensor detects the workpiece, the computer can process the workpiece according to the preset processing steps.

[0021] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plate spring quenching automatic forming machine comprising a frame (1), characterized in that: It also includes an upper mold (2), a lower mold (3) set in the frame (1), a middle pressing cylinder (5) fixedly installed in the middle of the top of the frame (1), and servo pressing cylinders (6) set on the left and right sides of the middle pressing cylinder (5). The upper mold (2), lower mold (3), middle pressing cylinder (5) and left and right servo pressing cylinders (6) are all connected to external control equipment. The upper mold (2) includes a fixed plate I (21) that is slidably installed on the frame (1) in the vertical direction. A guide block (24) is fixedly installed in the middle of the fixed plate I (21). A guide rod (25) is slidably installed in the guide block (24) in the vertical direction. The lower end of the guide rod (25) is fixedly installed with an upper pressure plate (26), and the output ends of the left and right servo pressing cylinders (6) are hinged to the fixed plate I (21), and the output end of the middle pressing cylinder (5) is fixedly connected to the upper end of the guide rod (25); the lower mold (3) includes a fixed plate II (31) fixedly installed on the frame (1), a support block (32) is fixedly installed on the front side of the fixed plate II (31), the support block (32) is located directly below the upper pressure plate (26), and a lower pressure plate (33) is fixedly installed on the top of the support block (32); both the upper mold (2) and the lower mold (3) also include an adjustment mechanism (4), the adjustment mechanism ( 4) Includes adjustment components symmetrically arranged on the left and right sides of the frame (1). The adjustment components include a U-shaped plate (41), a clamping cylinder (43), and a hydraulic cylinder group arranged on the opposite side of the upper mold (2) and the lower mold (3). The hydraulic cylinder group includes multiple servo hydraulic cylinders (44) arranged at horizontal intervals. Multiple clamping plates (42) are slidably installed in the U-shaped plate (41) at horizontal intervals. The clamping plates (42) divide the U-shaped plate (41) into multiple chambers. Each chamber is fitted with a chuck (47) slidably in the vertical direction. A connecting seat (45) is fixedly installed at the output end of the servo hydraulic cylinder (44). The other end of the mold is fixedly installed with a T-shaped block (46), and the end of the clamping head (47) near the T-shaped block (46) is provided with a groove that matches the T-shaped block (46); the U-shaped plate (41) on the upper mold (2) and the hydraulic cylinder group are fixedly connected to the fixed plate I (21), the U-shaped plate (41) on the lower mold (3) and the hydraulic cylinder group are fixedly connected to the fixed plate II (31), the clamping cylinder (43) is fixedly installed on the side of the adjacent adjustment components that are far away from each other, and a through hole is provided on the side wall of the U-shaped plate (41) near the clamping cylinder (43), and the output end of the clamping cylinder (43) extends into the U-shaped plate (41) through the through hole.

2. The automatic plate spring quench forming machine according to claim 1, wherein: Two sliders (23) are fixedly installed on the side of the fixed plate I (21) away from the adjustment mechanism (4). The two sliders (23) are symmetrically arranged on the left and right sides of the fixed plate I (21). Each slider (23) has a slide rail (22) slidably installed vertically. Both slide rails (22) are fixedly connected to the frame (1).

3. The automatic plate spring quench forming machine of claim 1, wherein: The clamping plate (42) is cross-shaped. The opposite surfaces of the fixing plate I (21) and the U-shaped plate (41), as well as the fixing plate II (31) and the U-shaped plate (41), are all provided with sliding grooves in the transverse direction. The two ends of the clamping plate (42) are respectively inserted into the sliding grooves of the adjacent ends.

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