A general-purpose heavy-duty stabilizer bar forming machine

Abstract

This invention relates to a commercial vehicle stabilizer bar forming device, specifically a general-purpose heavy-duty stabilizer bar forming machine. It includes a frame, a base, a centering mechanism, a fixing component, a forming die, a first bending component, a second bending component, a third bending component, and a stripping component. The centering mechanism pushes the workpiece blank until its center coincides with the center of the forming machine. The fixing component secures the workpiece blank. The three bending components work in conjunction with the forming die to complete multiple bends of the workpiece. The stripping component ejects the formed workpiece. This device is a general-purpose heavy-duty stabilizer bar forming machine capable of producing multiple product types, meeting production requirements while ensuring product forming quality. Testing has shown that this forming equipment can meet the production needs of seven products.

Description

Technical Field

[0001] This invention relates to a commercial vehicle stabilizer bar forming device, specifically to a general-purpose heavy-duty stabilizer bar forming machine. Background Technology

[0002] Currently, there are two main methods for forming stabilizer bars for commercial vehicles. The first is manual forming after localized heating. This method results in low production efficiency, inconsistent quality, and difficulty in guaranteeing the final shape of the stabilizer bar. Furthermore, repeated heating of the bending area affects product quality. The second method uses dedicated forming machines. This method is highly efficient and produces high-quality results, but it requires a significant investment in equipment. Each machine can only produce one type of product. Since commercial vehicles have a wide variety of products, with only small quantities of any single product, it necessitates purchasing a large number of dedicated forming machines, which not only ties up capital but also extends the development cycle. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention provides a stable, universal heavy-duty stabilizer bar forming machine that can handle the production of multiple product varieties, ensuring product forming quality while meeting product production requirements.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] A general-purpose heavy-duty stabilizer bar forming machine includes a frame, a base, a centering mechanism, a fixing component, a forming mold, a first bending component, a second bending component, and a third bending component. The frame is fixed on the base. The centering mechanism is located in the middle of the frame and is used to push the workpiece blank until the center of the workpiece blank coincides with the center of the forming machine.

[0006] The fixing assembly is located in the middle of the upper part of the frame and includes a clamping cylinder, an upper pressure plate and a lower pressure plate. The lower pressure plate is located in the center of the frame and is lower than the centering mechanism. The clamping cylinder is located in the middle of the upper part of the frame and the upper pressure plate is connected to the piston rod of the clamping cylinder.

[0007] The forming mold is located at the center of the frame and includes two first forming blocks, two second forming blocks, two third forming blocks and two end pads symmetrically arranged in the middle of the frame. The outer end face of the first forming block is an arc-shaped surface. The second forming block is located below the first forming block. The third forming block is located below the first forming block and corresponds to the waist position of the workpiece during forming. The end pads are located below the second forming block and correspond to the end position of the workpiece during forming.

[0008] The first bending assembly is located on the upper part of the frame and is used to press down and cooperate with the two first forming blocks to form the first bend of the workpiece; the second bending assembly is located on the base near the side of the frame and is used to cooperate with the two second forming blocks to form the second bend of the workpiece; the third bending assembly is located on the base directly opposite the forming mold and is used to cooperate with the two third forming blocks and the two end pads to form the third bend of the workpiece.

[0009] Furthermore, the general-purpose heavy-duty stabilizer bar forming machine is also equipped with a stripping assembly, which includes at least one set of back-push cylinders, a stripping push rod, and a stripping push plate. The back-push cylinder is vertically embedded in the frame and is located in the middle of the frame corresponding to the workpiece. One end of the stripping push rod is connected to the piston rod of the back-push cylinder, and the other end is connected to the stripping push plate.

[0010] Furthermore, the centering mechanism includes a rotating plate, two symmetrically arranged small pull plates, two centering pull rods, two centering crossbars, two centering blocks, and several pull rod seats. The pull rod seats are fixed on the frame, and the centering pull rods are located between the pull rod seats and the frame and can move horizontally. The rotating plate is located in the middle of the frame, and both ends of the rotating plate are rotatably connected to one end of a small pull plate. The other end of the small pull plate is rotatably connected to one end of the centering pull rod, and the other end of the centering pull rod is vertically connected to the centering crossbar. The centering blocks are located in the middle of the centering crossbar.

[0011] Furthermore, the first bending assembly includes two sets of first cylinders, first cylinder seats, a bending push plate, a crank arm, and a positioning seat arranged symmetrically. The two first cylinder seats are located on the left and right sides of the upper part of the frame, respectively. The first cylinder is rotatably connected to the first cylinder seat. The bending push plate is rotatably connected to the piston rod of the first cylinder. The positioning seat is located between the pressing cylinder and the first cylinder and is located above the centering mechanism. One end of the crank arm is rotatably connected to the positioning seat, and the other end is rotatably connected to the end of the piston rod.

[0012] Furthermore, the second bending assembly includes two sets of second cylinders, second cylinder seats, a transverse rocker arm, a transverse rocker arm seat, and a waist pressure block arranged symmetrically. The two second cylinder seats are respectively located at the left and right ends of the base and are located on the side close to the frame. The second cylinder is rotatably connected to the second cylinder seat. One end of the transverse rocker arm is rotatably connected to the piston rod of the second cylinder, and the other end is rotatably connected to the transverse rocker arm seat. The waist pressure block is located at the end of the transverse rocker arm near the piston rod.

[0013] Furthermore, the transverse rocker arm is provided with a trapezoidal groove, and the waist pressure block is detachably fixed in the trapezoidal groove by a screw.

[0014] Furthermore, the third bending assembly includes two sets of symmetrically arranged No. 3 hydraulic cylinders, a third hydraulic cylinder seat, a forward rocker arm, a forward rocker arm seat, a forward bending plate, and an end pressure plate. The base is provided with two parallel trapezoidal grooves. The third hydraulic cylinder seat and the forward rocker arm seat are respectively arranged in the two trapezoidal grooves. The No. 3 hydraulic cylinder is rotatably connected to the third hydraulic cylinder seat. One end of the forward rocker arm is rotatably connected to the piston rod of the No. 3 hydraulic cylinder, and the other end is rotatably connected to the forward rocker arm seat. The forward bending plate and the end pressure plate are arranged on the forward rocker arm.

[0015] Furthermore, the forward rocker arm is provided with a trapezoidal groove, and the forward bending plate and the end pressure plate are detachably fixed in the trapezoidal groove by screws.

[0016] The beneficial effects of this invention are:

[0017] (1) The device can adjust the position of the bending component and replace the forming mold and bending parts of different specifications, which can meet the production needs of at least 7 products and avoid the defects such as indentation that traditional forming machines can only produce a single product and are prone to defects that affect product quality.

[0018] (2) The material is centered by the centering mechanism, and the product is deformed by the oil cylinder controlled by PLC to obtain a specific product shape. This equipment has a simple structure, is easy to maintain, runs stably, and has high molding quality.

[0019] (3) The device provides power to each cylinder through a hydraulic station and controls the action through a PLC, which can be bent into a specific shape in one go; the forming equipment can bend straight round steel with a diameter of more than 30mm into a specific shape in one go under the condition of 930±30 degrees Celsius. Attached Figure Description

[0020] Figure 1 This is a schematic front view of a general heavy-duty stabilizer bar forming machine according to one embodiment of the present invention.

[0021] Figure 2 This is a side view of a general heavy-duty stabilizer bar forming machine according to one embodiment of the present invention.

[0022] Figure 3 This is a top view of a general-purpose heavy-duty stabilizer bar forming machine according to one embodiment of the present invention.

[0023] Figure 4 This is a partially enlarged structural schematic diagram of the centering mechanism in one embodiment of the present invention.

[0024] Figure 5 This is an exploded view of some parts of a general-purpose heavy-duty stabilizer bar forming machine according to one embodiment of the present invention.

[0025] Figure 6This is a state display diagram of a general heavy-duty stabilizer bar forming machine in one embodiment of the present invention.

[0026] Figure 7 This is a schematic diagram of the structure of another specification of the molding die of the present invention.

[0027] Explanation of reference numerals in attached figures:

[0028] 1-Frame, 101-Workpiece;

[0029] 2-Base, 201-Trapezoidal groove;

[0030] 3-Centering mechanism, 301-Rotating plate, 302-Small pull plate, 303-Centering pull rod, 304-Centering crossbar, 305-Centering block, 306-Pull rod seat;

[0031] 4-Fixing assembly, 401-Clamping cylinder, 402-Upper pressure plate, 403-Lower pressure plate;

[0032] 5- Molding mold, 501- First molding block, 502- Second molding block, 503- Third molding block, 504- End pad block;

[0033] 6-First bending assembly, 601-First hydraulic cylinder, 602-First hydraulic cylinder seat, 603-Bending push plate, 604-Crank arm, 605-Positioning seat;

[0034] 7-Second bending assembly, 701-Second hydraulic cylinder, 702-Second hydraulic cylinder seat, 703-Transverse rocker arm, 704-Transverse rocker arm seat, 705-Waist pressure block;

[0035] 8-Third bending assembly, 801-No. 3 hydraulic cylinder, 802-Third hydraulic cylinder seat, 803-Forward rocker arm, 804-Forward rocker arm seat, 805-Forward bending plate, 806-End pressure plate;

[0036] 9-Removal assembly, 901-Back thrust cylinder, 902-Removal push rod, 903-Removal push plate. Detailed Implementation

[0037] To better understand the above-described objects, features, and advantages of the present invention, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a thorough understanding of the invention; however, the invention may be practiced in other ways different from those described herein, and therefore, the invention is not limited to the specific embodiments disclosed below.

[0038] like Figures 1-7The diagram shows a general-purpose heavy-duty stabilizer bar forming machine, comprising a frame 1, a base 2, a centering mechanism 3, a fixing component 4, a forming mold 5, a first bending component 6, a second bending component 7, a third bending component 8, and a stripping component 9. The frame 1 is fixed to the base 2. The centering mechanism 3, fixing component 4, forming mold 5, and first bending component 6 are all mounted on the frame 1, while the second bending component 7 and third bending component 8 are mounted on the base 2. The centering mechanism 3 is located in the middle of the frame 1 and is used to push the workpiece blank until its center coincides with the center of the forming machine. It includes a rotating plate 301, two symmetrically arranged small pull plates 302, and two centering pull rods 3. 03. Two centering crossbars 304, two centering blocks 305, and several tie rod seats 306. The tie rod seats 306 are fixed on the frame 1. The centering tie rod 303 is located between the tie rod seat 306 and the frame 1 and can move horizontally. The rotating plate 301 is located in the middle of the frame 1. Both ends of the rotating plate 301 are rotatably connected to one end of a small pull plate 302. The other end of the small pull plate 302 is rotatably connected to one end of the centering tie rod 303. The other end of the centering tie rod 303 is vertically connected to the centering crossbar 304. The centering blocks 305 are located in the middle of the centering crossbar 304. At least one centering block 305 is provided with a U-shaped or V-shaped groove to facilitate keeping the workpiece blank centered. The centering mechanism 3 can be driven manually or by a hydraulic cylinder connected laterally to the end of the rotating plate 301. In this embodiment, the centering mechanism 3 is driven manually.

[0039] The fixing component 4 is located in the middle of the upper part of the frame 1, and includes a clamping cylinder 401 (i.e., a hydraulic cylinder), an upper pressure plate 402 and a lower pressure plate 403. The lower pressure plate 403 is located in the center of the frame 1 and its height is lower than that of the centering mechanism 3. The clamping cylinder 401 is located in the middle of the upper part of the frame 1, and the upper pressure plate 402 is connected to the piston rod of the clamping cylinder 401.

[0040] The forming mold 5 is located at the center of the frame 1 and includes two first forming blocks 501, two second forming blocks 502, two third forming blocks 503 and two end pads 504 symmetrically arranged in the middle of the frame 1. The outer end face of the first forming block 501 is an arc-shaped surface. The second forming block 502 is located below the first forming block 501. The third forming block 503 is located below the first forming block 501 on the outer side corresponding to the waist position when the workpiece 101 is formed. The end pads 504 are located below the second forming block 502 corresponding to the end position when the workpiece 101 is formed.

[0041] The first bending assembly 6 includes two sets of first cylinders 601 symmetrically arranged, first cylinder seats 602, a bending push plate 603, a crank arm 604, and a positioning seat 605. The two first cylinder seats 602 are located on the left and right sides of the upper part of the frame 1, respectively. The first cylinder 601 is rotatably connected to the first cylinder seat 602 (that is, the first cylinder 601 can rotate horizontally relative to the first cylinder seat 602). The bending push plate 603 is rotatably connected to the piston rod of the first cylinder 601. Both ends of the bending push plate 603 are provided with small rollers, which can prevent indentations from appearing on the workpiece. The positioning seat 605 is located between the clamping cylinder 401 and the first cylinder 601, and is located above the centering mechanism 3. One end of the crank arm 604 is rotatably connected to the positioning seat 605, and the other end is rotatably connected to the end of the piston rod.

[0042] The second bending assembly 7 includes two sets of second cylinders 701 symmetrically arranged, a second cylinder seat 702, a transverse rocker arm 703, a transverse rocker arm seat 704, and a waist pressing block 705. The two second cylinder seats 702 are respectively located at the left and right ends of the base 2 and on the side closer to the frame 1. The second cylinders 701 are rotatably connected to the second cylinder seats 702 (i.e., the second cylinders 701 can rotate up and down relative to the second cylinder seats 702). One end of the transverse rocker arm 703 is rotatably connected to the piston rod of the second cylinder 701, and the other end is rotatably connected to the transverse rocker arm seat 704. The waist pressing block 705 is located at the end of the transverse rocker arm 703 near the piston rod. The transverse rocker arm 703 is provided with a trapezoidal groove 201. The waist pressing block 705 is detachably fixed in the trapezoidal groove 201 by a screw. The position of the waist pressing block 705 can be moved or different specifications of waist pressing block 705 can be replaced according to the production needs of different product models.

[0043] The third bending assembly 8 includes two symmetrically arranged sets of No. 3 hydraulic cylinders 801, a third hydraulic cylinder seat 802, a forward rocker arm 803, a forward rocker arm seat 804, a forward bending plate 805, and an end pressure plate 806. The base 2 has two parallel trapezoidal grooves 201. The third hydraulic cylinder seat 802 and the forward rocker arm seat 804 are respectively disposed within the two trapezoidal grooves 201. The No. 3 hydraulic cylinders 801 and the third hydraulic cylinder seat 802 are rotatably connected (i.e., the No. 3 hydraulic cylinders 801 can be rotated). The third cylinder seat 802 rotates up and down. One end of the forward rocker arm 803 is rotatably connected to the piston rod of the third cylinder 801, and the other end is rotatably connected to the forward rocker arm seat 804. The forward bending plate 805 and the end pressure plate 806 are set on the forward rocker arm 803. The forward rocker arm 803 is provided with a trapezoidal groove 201. The forward bending plate 805 and the end pressure plate 806 are detachably fixed in the trapezoidal groove 201 by screws.

[0044] The stripping assembly 9 includes a back-push cylinder 901, a stripping push rod 902, and a stripping push plate 903. The back-push cylinder 901 is vertically embedded in the frame 1 and is located in the middle of the frame 1 corresponding to the workpiece 101. One end of the stripping push rod 902 is connected to the piston rod of the back-push cylinder 901, and the other end is connected to the stripping push plate 903.

[0045] In this embodiment, the general-purpose heavy-duty stabilizer bar forming machine uses an external hydraulic system to provide power to each cylinder and is controlled by a PLC control system. The clamping cylinder 401, two sets of No. 1 cylinders 601, two sets of No. 2 cylinders 701, two sets of No. 3 cylinders 801, and the back thrust cylinder 901 are all connected to the control system signal. The sequence and timing of the continuous operation of the forming machine are controlled by the PLC system. After each bending component moves to a specific position, the electronic induction input switch of the cylinder receives the stroke signal and sends a message to the PLC control system. After receiving the specific signal, the PLC system issues a signal to execute the next pre-set process, and finally completes the shape of the stabilizer bar.

[0046] When using the device, first place the workpiece blank on the lower pressure plate 403 of the forming machine. Manually push the centering crossbar 304 of the centering mechanism 3 until both ends of the workpiece blank contact the two centering blocks 305 respectively, so that the center of the workpiece blank coincides with the center of the forming machine (i.e., the center of the forming mold 5). The device runs, the clamping cylinder 401 starts and pushes the upper pressure plate 402 down, which works with the lower pressure plate 403 to clamp and fix the workpiece blank. Then the centering mechanism 3 is reset, and then the two sets of first cylinders 601 start simultaneously, pushing the bending push plate 603 down. At this time, the crank arm 604 rotates around the positioning seat 605 and drives the bending push plate 603 to press down the workpiece blank and move it to the first forming block 501, completing the bending of the first bend on both sides of the workpiece 101. The two sets of first cylinders 601 then reset simultaneously. Then the two sets of second cylinders 701 move upward simultaneously, pushing The lateral rocker arm 703 moves around the lateral rocker arm seat 704, causing the waist pressure block 705 to press against the second forming block 502, completing the bending of the second bend of the workpiece 101. The two sets of No. 2 hydraulic cylinders 701 then reset simultaneously. Then, the two sets of No. 3 hydraulic cylinders 801 move upward, pushing the forward rocker arm 803 to rotate, and driving the forward bending plate 805 and the end pressure plate 806 to move, cooperating with the third forming block 503 and the end pad block 504 to complete the bending of the last bend of the workpiece 101. Then, the two sets of No. 3 hydraulic cylinders 801 reset, and the clamping hydraulic cylinder 401 resets. At this time, the clamping hydraulic cylinder 401, the two sets of No. 1 hydraulic cylinders 601, the two sets of No. 2 hydraulic cylinders 701, and the two sets of No. 3 hydraulic cylinders 801 have all reset. Then, the back push hydraulic cylinder 901 is activated, pushing the stripping push rod 902 and the stripping push plate 903 to push the product out. The back push hydraulic cylinder 901 then resets, and the one-time forming is completed. When different models of products need to be produced, it is only necessary to replace the corresponding fixed mold, bending push plate 603, waist pressure block 705, forward bending plate 805 and end pressure plate 806. At the same time, the positions of the third oil cylinder seat 802 and forward rocker arm seat 804 can also be moved. The position of the waist pressure block 705 on the transverse rocker arm 703, as well as the positions of the forward bending plate 805 and end pressure plate 806 on the forward rocker arm 803, can also be adjusted according to production needs.

[0047] Tests have shown that this molding equipment can meet the production needs of seven products (and the number is increasing as new products are developed). It reduces the initial investment in equipment and shortens the time required to invest in new equipment, thereby accelerating new product development. Using this molding equipment enables mass production and meets the quality requirements of automobile manufacturers (primarily product consistency). Tests have verified that the produced products meet the requirements for automotive use.

Claims

1. A general-purpose heavy-duty stabilizer bar forming machine, comprising a frame, a base, a centering mechanism, a fixing component, a forming die, a first bending component, a second bending component, and a third bending component, characterized in that, The frame is fixed on the base; the centering mechanism is located in the middle of the frame and is used to push the workpiece blank until the center of the workpiece blank coincides with the center of the forming machine. The fixing assembly is located in the middle of the upper part of the frame and includes a clamping cylinder, an upper pressure plate and a lower pressure plate. The lower pressure plate is located in the center of the frame and is lower than the centering mechanism. The clamping cylinder is located in the middle of the upper part of the frame and the upper pressure plate is connected to the piston rod of the clamping cylinder. The forming mold is located at the center of the frame and includes two first forming blocks, two second forming blocks, two third forming blocks and two end pads symmetrically arranged in the middle of the frame. The outer end face of the first forming block is an arc-shaped surface. The second forming block is located below the first forming block. The third forming block is located below the first forming block and corresponds to the waist position of the workpiece during forming. The end pads are located below the second forming block and correspond to the end position of the workpiece during forming. The first bending assembly is located on the upper part of the frame and is used to press down and cooperate with the two first forming blocks to form the first bend of the workpiece; the second bending assembly is located on the base near the side of the frame and is used to cooperate with the two second forming blocks to form the second bend of the workpiece; the third bending assembly is located on the base directly opposite the forming mold and is used to cooperate with the two third forming blocks and the two end pads to form the third bend of the workpiece. The second bending assembly includes two sets of second hydraulic cylinders arranged symmetrically, a second hydraulic cylinder seat, a transverse rocker arm, a transverse rocker arm seat, and a waist pressing block. The transverse rocker arm is provided with a trapezoidal groove, and the waist pressing block is detachably fixed in the trapezoidal groove by a screw. The third bending assembly includes two sets of symmetrically arranged No. 3 hydraulic cylinders, a third hydraulic cylinder seat, a forward rocker arm, a forward rocker arm seat, a forward bending plate, and an end pressure plate. The base is provided with two parallel trapezoidal grooves. The third hydraulic cylinder seat and the forward rocker arm seat are respectively arranged in the two trapezoidal grooves. The forward rocker arm is provided with a trapezoidal groove. The forward bending plate and the end pressure plate are detachably fixed in the trapezoidal grooves by screws.

2. The universal heavy-duty stabilizer bar forming machine according to claim 1, characterized in that, It is also equipped with a stripping assembly, which includes a back-push cylinder, a stripping push rod and a stripping push plate. The back-push cylinder is vertically embedded in the frame and is located in the middle of the frame corresponding to the workpiece. One end of the stripping push rod is connected to the piston rod of the back-push cylinder and the other end is connected to the stripping push plate.

3. The universal heavy-duty stabilizer bar forming machine according to claim 1, characterized in that, The centering mechanism includes a rotating plate, two symmetrically arranged small pull plates, two centering pull rods, two centering crossbars, two centering blocks, and several pull rod seats. The pull rod seats are fixed on the frame, and the centering pull rods are located between the pull rod seats and the frame and can move horizontally. The rotating plate is located in the middle of the frame, and both ends of the rotating plate are rotatably connected to one end of a small pull plate. The other end of the small pull plate is rotatably connected to one end of the centering pull rod, and the other end of the centering pull rod is vertically connected to the centering crossbar. The centering blocks are located in the middle of the centering crossbar.

4. The universal heavy-duty stabilizer bar forming machine according to claim 1, characterized in that, The first bending assembly includes two sets of first cylinders, first cylinder seats, a bending push plate, a crank arm, and a positioning seat arranged symmetrically. The two first cylinder seats are located on the left and right sides of the upper part of the frame, respectively. The first cylinder is rotatably connected to the first cylinder seat. The bending push plate is rotatably connected to the piston rod of the first cylinder. The positioning seat is located between the pressing cylinder and the first cylinder and is located above the centering mechanism. One end of the crank arm is rotatably connected to the positioning seat, and the other end is rotatably connected to the end of the piston rod.

5. The universal heavy-duty stabilizer bar forming machine according to claim 1, characterized in that, Two second cylinder seats are respectively located at the left and right ends of the base and on the side close to the frame. The second cylinder is rotatably connected to the second cylinder seat. One end of the transverse rocker arm is rotatably connected to the piston rod of the second cylinder, and the other end is rotatably connected to the transverse rocker arm seat. The waist pressure block is located at the end of the transverse rocker arm near the piston rod.

6. The universal heavy-duty stabilizer bar forming machine according to claim 1, characterized in that, The No. 3 hydraulic cylinder is rotatably connected to the No. 3 hydraulic cylinder seat. One end of the forward rocker arm is rotatably connected to the piston rod of the No. 3 hydraulic cylinder, and the other end is rotatably connected to the forward rocker arm seat. The forward bending plate and the end pressure plate are set on the forward rocker arm.

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