Casting head cutting device for automobile control arm
By designing an automated cutting device, the problems of high labor intensity, low precision, and high safety hazards when manually cutting the riser and gating arm were solved, achieving efficient and precise automatic cutting and ensuring worker safety and equipment integrity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 威海伯特利汽车安全系统有限公司
- Filing Date
- 2025-03-12
- Publication Date
- 2026-05-12
AI Technical Summary
The existing control arm gating and riser cutting method relies on manual operation, which has problems such as high labor intensity, low cutting accuracy, and high safety hazards.
An automated cutting device including a cutting motor and a circular saw was designed. The device achieves automatic positioning and cutting of the control arm through a robotic arm and positioning components, and incorporates a baffle to prevent cutting fragments from bouncing back, thereby reducing the risk of equipment damage.
It has enabled automated cutting of the riser and gating system, reducing the labor intensity of workers, improving cutting accuracy and efficiency, ensuring worker safety, and reducing the risk of equipment damage.
Smart Images

Figure CN224222721U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive parts technology, and in particular to a cutting device for the riser and gating system of an automotive control arm. Background Technology
[0002] The control arm is one of the main components of a car's steering axle, enabling the car to drive stably and transmit driving direction sensitively.
[0003] In the casting process of automotive control arms, the design of the gating system and risers is crucial, directly impacting the quality, production efficiency, and cost of the casting. The gating system is the channel connecting the gating system to the casting cavity, responsible for introducing molten metal into the cavity and ensuring that the metal fills the entire cavity evenly and quickly. The riser is used for feeding and venting during the casting process; it provides additional molten metal during solidification to fill voids created by shrinkage in the casting and helps expel gases and impurities from the cavity.
[0004] In the automotive parts manufacturing industry, the solid formed after the molten metal from the riser and gate solidifies is conventionally referred to as the riser and gate. Therefore, after the control arm is cast, the gate and riser of the solid need to be cut to separate the control arm for subsequent use.
[0005] Existing control arm riser cutting devices typically involve manual hand-held cutting with a cutting tool. This method has the following limitations: First, it is labor-intensive; prolonged cutting operations can easily lead to worker fatigue, affecting cutting efficiency and quality. Second, it results in low cutting precision; the effectiveness of manual cutting is often greatly affected by human factors such as worker emotions and attention, easily leading to unstable cutting quality, reduced cutting precision, and problems such as uneven cuts and inaccurate dimensions. Third, it poses significant safety hazards; when cutting with a hand-held cutting tool, workers need to be in close contact with the cutting area, increasing the risk of injury. Additionally, sparks and flying debris generated during the cutting process can also cause injury to workers. Utility Model Content
[0006] The purpose of this invention is to overcome the shortcomings of the above-mentioned technology and provide a cutting device for the riser and gating system of an automotive control arm.
[0007] Therefore, this utility model provides a cutting device for the riser and gating of an automotive control arm, including a cutting motor and a circular saw. The cutting motor is driven and connected to the circular saw. The cutting motor is fixedly mounted on a swing bracket. The swing bracket is rotatably connected to an ear plate. The ear plate is fixedly mounted on the side of a column. A sliding plate is vertically slidably connected to the column. A robotic arm one is rotatably connected to the front side of the sliding plate. The other end of the robotic arm one is rotatably connected to a robotic arm two. A rotary worktable is rotatably mounted at the end of the robotic arm two. A positioning component is mounted on the rotary worktable for positioning the control arm. A locking component is mounted on the robotic arm two for limiting the position of the control arm. A baffle is hinged to the lower part of the column on the same side as the ear plate.
[0008] Preferably, the locking component includes a support column, a cylinder, a rotating rod, and a pressure rod. The support column is fixedly installed on the second robotic arm. The cylinder is fixedly installed on the top of the support column. The rotating rod is hinged to the top of the support column. The piston rod of the cylinder is hinged to a fixed block at the top of the rotating rod. The pressure rod, which is arranged vertically, is fixedly installed on the outer end of the rotating rod. The pressure rod is inserted into the central hole of the control arm.
[0009] Preferably, the bottom diameter of the pressure rod is smaller than the diameter of the central hole.
[0010] Preferably, the positioning component includes a positioning seat and positioning plates. The positioning seat is coaxially and detachably mounted on the rotary worktable. Multiple positioning plates are fixedly mounted on the positioning seat, and the top curvature of the multiple positioning plates is adapted to the curvature of the control arm.
[0011] Preferably, the baffle includes a rigid support frame and a flexible baffle cloth, the rigid support frame is used to support the flexible baffle cloth, and one end of the rigid support frame is hinged to the column.
[0012] Preferably, the side of the baffle facing the control arm is inwardly arc-shaped.
[0013] Preferably, a spring is installed between the robotic arm and the rigid support frame.
[0014] Preferably, a push plate is fixedly installed on the bottom side of the baffle away from the control arm.
[0015] Preferably, a limiting block is fixedly installed on the second robotic arm, and a limiting plate is fixedly installed on the first robotic arm. The limiting plate is located outside the rotation path of the second robotic arm and is used to limit the position of the limiting block.
[0016] The beneficial effects of this utility model are as follows: This utility model provides a cutting device for the riser and gating of an automobile control arm, which has the following beneficial effects.
[0017] (1) Place the control arm on the positioning plate of the positioning seat, start the cylinder, the piston rod of the cylinder moves forward, driving the rotating rod to flip downward, so that the pressure rod is inserted into the center hole of the control arm, locking the position of the control arm. Then start the cutting motor, the cutting motor drives the circular saw to rotate, and the control arm rotates to the bottom of the circular saw under the action of robotic arm one, robotic arm two, rotary worktable and slide plate. The circular saw cuts the gate and riser on the control arm, realizing the automated operation of gate and riser cutting of the control arm. No manual cutting is required, which reduces the labor intensity of workers, improves the cutting accuracy and efficiency, and ensures the personal safety of workers.
[0018] (2) After the circular saw cuts the gate and riser, the gate and riser will fall onto the conveyor belt below the robotic arm. Due to the rebound of the conveyor belt, the gate and riser are very likely to collide with robotic arm one or robotic arm two, thereby damaging the equipment. The baffle can block the falling gate and riser, reduce the risk of rebound, and protect the equipment.
[0019] (3) A spring is installed between the robotic arm and the baffle. When the robotic arm swings outward laterally, the spring will exert an outward pulling force on the baffle, thereby increasing the operating space of the robotic arm. At the same time, the push plate at the bottom of the baffle can remove the foreign objects that were originally below the robotic arm, ensuring the normal operation of the control arm's gating and riser cutting work. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of the automobile control arm gating and riser cutting device in this embodiment;
[0021] Figure 2 This is a front view of the automobile control arm gating and riser cutting device in this embodiment;
[0022] Figure 3 This is a schematic diagram of the baffle structure in this embodiment;
[0023] Figure 4 This is a schematic diagram of the bottom structure of the baffle in this embodiment.
[0024] The markings in the diagram are: 1. Cutting motor; 2. Circular saw; 3. Swing bracket; 4. Ear plate; 5. Column; 6. Slide plate; 7. Robotic arm one; 8. Robotic arm two; 9. Rotary worktable; 10. Positioning component; 101. Positioning seat; 102. Positioning plate; 11. Control arm; 12. Locking component; 121. Support column; 122. Cylinder; 123. Rotating rod; 124. Pressure rod; 125. Fixing block; 13. Baffle; 131. Rigid support frame; 132. Flexible baffle; 14. Spring; 15. Push plate; 16. Limiting block; 17. Limiting plate; 18. Mounting seat; 19. Riser; 20. Gate. Detailed Implementation
[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.
[0026] Example:
[0027] like Figures 1-4 As shown, this utility model provides a cutting device for the riser and gating system of an automotive control arm, including a cutting motor 1 and a circular saw 2. The cutting motor 1 is driven and connected to the circular saw 2. The cutting motor 1 is fixedly mounted on a swing bracket 3. The swing bracket 3 is rotatably connected to an ear plate 4. The ear plate 4 is fixedly mounted on the side of a column 5. A sliding plate 6 is vertically slidably connected to the column 5. A vertical lead screw is provided inside the column 5. The bottom of the lead screw is driven and connected to the motor. A slider is fixedly mounted on the back of the sliding plate 6. The slider is threadedly connected to the lead screw, thereby causing the motor to drive the sliding plate 6 to move up and down along the Y-axis.
[0028] A robotic arm 7 is rotatably connected to the mounting base 18 on the front side of the slide plate 6. The robotic arm 7 swings along the X-axis. The other end of the robotic arm 7 is rotatably connected to a robotic arm 8. The robotic arm 8 swings along the Z-axis. A rotary worktable 9 is rotatably mounted on the end of the robotic arm 8. A positioning component 10 is mounted on the rotary worktable 9. The positioning component 10 is used to position the control arm 11. A locking component 12 is mounted on the robotic arm 8. The locking component 12 is used to limit the position of the control arm 11. A baffle 13 is hinged to the lower part of the column 5 on the same side as the ear plate 4.
[0029] Furthermore, the locking component 12 includes a support column 121, a cylinder 122, a rotating rod 123, and a pressure rod 124. The support column 121 is fixedly installed on the robotic arm 8. The support column 121 has an L-shaped structure. The cylinder 122 is fixedly installed on the top of the support column 121. The cylinder 122 is arranged at an angle to facilitate better pulling of the fixed block 125. The rotating rod 123 is hinged to the top of the support column 121. The piston rod of the cylinder 122 is hinged to the fixed block 125 at the top of the rotating rod 123. The pressure rod 124, which is arranged vertically, is fixedly installed on the outer end of the rotating rod 123. The pressure rod 124 is inserted into the center hole of the control arm 11.
[0030] Furthermore, the bottom diameter of the pressure rod 124 is smaller than the diameter of the central hole, which not only facilitates the insertion and removal of the pressure rod 124, but also ensures that when the rotary table 9 drives the control arm 11 to rotate, the pressure rod 124 can maintain the locking position of the central hole of the control arm 11 without affecting the normal rotation of the control arm 11, which is conducive to the smooth progress of the gating and riser cutting work.
[0031] Furthermore, the positioning component 10 includes a positioning seat 101 and a positioning plate 102. The positioning seat 101 is detachably connected to the rotary table 9 by bolts. The positioning seat 101 is coaxially mounted on the rotary table 9. Multiple positioning plates 102 are fixedly mounted on the positioning seat 101. The positioning plates 102 are detachably connected to the positioning seat 101 by bolts, which facilitates matching different specifications of automotive parts. The top curvature of the multiple positioning plates 102 is adapted to the curvature of the control arm 11.
[0032] Furthermore, the baffle 13 includes a rigid support frame 131 and a flexible baffle 132. The rigid support frame 131 is used to support the flexible baffle 132. One end of the rigid support frame 131 is hinged to the column 5. The top height of the rigid support frame 131 is higher than the top height of the robotic arm 8. The flexible baffle 132 is made of polyurethane, which can not only reduce the rebound risk of the gate 20 and riser 19, but also reduce the impact on the rotation range of the robotic arm 8.
[0033] Furthermore, the side of the baffle 13 facing the control arm 11 is inwardly arc-shaped, which facilitates better blocking of the cut-off gate 20 and riser 19.
[0034] Furthermore, a spring 14 is installed between the robotic arm 7 and the rigid support frame 131. The spring 14 can generate an outward pulling force on the baffle 13 when the robotic arm 7 rotates outward along the X-axis, thereby driving the baffle 13 to move outward, and also increasing the operating space of the robotic arm 8.
[0035] Furthermore, a push plate 15 is fixedly installed on the bottom side of the baffle 13 away from the control arm 11. When the robotic arm 7 pulls the baffle 13 outward, the push plate 15 moves outward synchronously under the action of the baffle 13, thereby sweeping away the debris that was originally under the robotic arm 7.
[0036] Furthermore, a limiting block 16 is fixedly installed on the second robotic arm 8, and a limiting plate 17 is fixedly installed on the first robotic arm 7. The limiting plate 17 is located on the outside of the rotation path of the second robotic arm 8 and is used to limit the position of the limiting block 16.
[0037] Furthermore, servo motors (not shown in the figure) are connected to both ends of the swing bracket 3, the robotic arm 7, and the rotary table 9. The servo motors include servo motor one, servo motor two, servo motor three, and servo motor four. Servo motor one is fixedly mounted on the ear plate 4 and is used to drive the swing bracket 3 to rotate up and down. Servo motor two is used to drive the robotic arm 7 to rotate around the mounting base 18. Servo motor three is used to drive the robotic arm 8 to rotate around the robotic arm 7. Servo motor four is used to drive the rotary table 9 to rotate.
[0038] The working principle of this embodiment is as follows:
[0039] The control arm 11 to be cut is placed on the positioning plate 102 of the positioning seat 101. The cylinder 122 is started, and the piston rod of the cylinder 122 extends outward, thereby driving the rotating rod 123 to rotate downward. The movement of the rotating rod 123 drives the pressure rod 124 to insert downward into the center hole of the control arm 11, thereby locking the position of the control arm 11. Then, the servo motor one is started, which drives the cutting motor 1 and the circular saw 2 to rotate downward. Then, the gate 20 on the control arm 11 is moved to the bottom of the circular saw 2 through the slide plate 6, the robotic arm one 7, the robotic arm two 8 and the rotary table 9. The circular saw 2 is used to cut the large piece of the gate 20 horizontally. After the cutting is completed, the servo motor one is started again, which drives the circular saw 2 to return to its original position. Then, the position of the control arm 11 is adjusted again through the slide plate 6, the robotic arm one 7, the robotic arm two 8 and the rotary table 9. Finally, the circular saw 2 is used to cut the gate 20 and the riser 19 on the control arm 11 vertically.
[0040] After the cut gate 20 and riser 19 fall, they are blocked by the baffle 13 to reduce the risk of rebound and prevent damage to the equipment.
[0041] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0042] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A cutting device for the riser and gating system of an automotive control arm, comprising a cutting motor (1) and a circular saw (2), wherein the cutting motor (1) is drivenly connected to the circular saw (2), characterized in that, The cutting motor (1) is fixedly mounted on the swing bracket (3). The swing bracket (3) is rotatably connected to the ear plate (4). The ear plate (4) is fixedly mounted on the side of the column (5). A sliding plate (6) is vertically slidably connected to the column (5). A robotic arm (7) is rotatably connected to the front side of the sliding plate (6). The other end of the robotic arm (7) is rotatably connected to the robotic arm (8). A rotary worktable (9) is rotatably mounted on the end of the robotic arm (8). A positioning component (10) is mounted on the rotary worktable (9). The positioning component (10) is used to position the control arm (11). A locking component (12) is mounted on the robotic arm (8). The locking component (12) is used to limit the position of the control arm (11). A baffle (13) is hinged to the lower part of the column (5) on the same side as the ear plate (4).
2. The automotive control arm gating and riser cutting device according to claim 1, characterized in that, The locking component (12) includes a support column (121), a cylinder (122), a rotating rod (123), and a pressure rod (124). The support column (121) is fixedly installed on the second robotic arm (8). The cylinder (122) is fixedly installed on the top of the support column (121). The rotating rod (123) is hinged to the top of the support column (121). The piston rod of the cylinder (122) is hinged to the fixing block (125) at the top of the rotating rod (123). The pressure rod (124) is fixedly installed at the outer end of the rotating rod (123) and is inserted into the center hole of the control arm (11).
3. The automotive control arm gating and riser cutting device according to claim 2, characterized in that, The bottom diameter of the pressure rod (124) is smaller than the diameter of the central hole.
4. The automotive control arm gating and riser cutting device according to claim 1, characterized in that, The positioning component (10) includes a positioning seat (101) and a positioning plate (102). The positioning seat (101) is coaxially and detachably mounted on the rotary table (9). Multiple positioning plates (102) are fixedly mounted on the positioning seat (101). The top curvature of the multiple positioning plates (102) is adapted to the curvature of the control arm (11).
5. The automotive control arm gating and riser cutting device according to claim 1, characterized in that, The baffle (13) includes a rigid support frame (131) and a flexible baffle (132). The rigid support frame (131) is used to support the flexible baffle (132). One end of the rigid support frame (131) is hinged to the column (5).
6. The automotive control arm gating and riser cutting device according to claim 1, characterized in that, The side of the baffle (13) facing the control arm (11) is inwardly arc-shaped.
7. The automotive control arm gating and riser cutting device according to claim 5, characterized in that, A spring (14) is installed between the robotic arm (7) and the rigid support frame (131).
8. The automotive control arm gating and riser cutting device according to claim 1, characterized in that, A push plate (15) is fixedly installed on the bottom side of the baffle (13) away from the control arm (11).
9. The automotive control arm gating and riser cutting device according to claim 1, characterized in that, A limiting block (16) is fixedly installed on the second robotic arm (8), and a limiting plate (17) is fixedly installed on the first robotic arm (7). The limiting plate (17) is located outside the rotation path of the second robotic arm (8) and is used to limit the position of the limiting block (16).