Side cutting mechanism for automobile chassis parts
By designing a detachable insert and tool structure, combined with components such as sliders, slide blocks, and nitrogen springs, the problem of traditional molds requiring overall disassembly is solved, enabling rapid replacement and adjustment, improving production efficiency and equipment utilization, and ensuring processing accuracy and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO WOTE AUTO PARTS
- Filing Date
- 2025-05-14
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional automotive chassis component stamping dies require complete disassembly when the cutting tools are damaged or the dimensions need to be adjusted, resulting in long die adjustment time and affecting equipment utilization and production efficiency.
The design incorporates detachable inserts and cutting tools, along with components such as sliders, slide blocks, and nitrogen springs, enabling rapid replacement and adjustment of the inserts. Guide rails and limiting structures ensure stable slider movement and provide stable reaction force.
Reduce mold adjustment time, improve equipment utilization and production efficiency, ensure consistent processing accuracy and product quality, reduce maintenance costs, and extend mold life.
Smart Images

Figure CN224181827U_ABST
Abstract
Description
A side-cutting mechanism for an automotive chassis component Technical Field
[0001] This application relates to the field of automotive parts processing technology, and in particular to a side cutting mechanism for an automotive chassis component. Background Technology
[0002] With the development of the automotive industry, the forming technology of automotive chassis components plays a crucial role in automobile manufacturing. As shown in Figure 1, C-shaped openings are commonly used in the cold stamping of automotive chassis components, and the quality of the formed C-shaped openings directly affects the quality of the automotive chassis component assembly. Currently, molds are commonly used to process automotive chassis components, ensuring both processing efficiency and quality.
[0003] Relevant prior art, such as Chinese patent application "A Die for Cutting Edges and Punching Side Holes of an Automobile Body Panel", application number: CN202021388132.3, discloses a die including a lower die, an upper die, and a side punching mechanism. The lower die includes a lower template and multiple support blocks and cutting edge blocks fixedly disposed on the top of the lower template. The support blocks and cutting edge blocks cooperate to support the body panel, and the cutting edge blocks support the edge of the body panel to be cut. The cutting edge blocks have cutting edges corresponding to the position of the edge to be cut on the body panel. The punching position is provided with a punching side; the upper die includes a cutter corresponding to the cutting edge and a pressure block around the outer periphery of the cutter. The upper die can move downward to press the lower die, the pressure block presses the body panel, and the cutter punches the body panel; the side punching mechanism is provided on the top of the lower die and adjacent to the punching side of the cutting edge block. The side punching mechanism includes a punching drive device and a punching cutter head perpendicular to the punching side. The punching drive device can drive the punching cutter head to translate in a direction perpendicular to the punching side to punch the side of the body panel.
[0004] Traditional stamping dies typically employ a one-piece structure. When the cutting tool is damaged, the entire die needs to be disassembled from the equipment for replacement. This results in a long adjustment time when changing the cutting tool or adjusting the size, which affects equipment utilization and production efficiency. Summary of the Invention
[0005] The technical problem to be solved by this application is to provide a side cutting mechanism for automotive chassis components, which enables quick replacement of inserts, reduces mold adjustment time, and improves equipment utilization.
[0006] The technical solution adopted in this application is: a side cutting mechanism for automobile chassis components, including a guide rail, a cutter, a slide block and a slider. A block is detachably mounted on the slider, the cutter is detachably mounted on the block, the slider is movably mounted on the slide block, the block is partially mounted on the guide rail, one end of the block is connected to the slider, and the other end of the block is connected to a nitrogen spring. The slider is driven to move the block under force, and the block is subjected to force from the nitrogen spring while moving.
[0007] Compared with existing technologies, the advantages of this application are as follows: First, the application features detachable inserts and cutters, allowing for easy replacement of the entire mold without disassembling it from the equipment when the cutter is damaged or requires dimensional adjustment. This significantly reduces mold setup time and improves equipment utilization and production efficiency. Second, the design allows for rapid adjustment and replacement of cutters to meet the production needs of automotive chassis components of different sizes and shapes. This flexibility enables the mold to respond quickly to production changes, improving production adaptability.
[0008] Secondly, the insert can move smoothly through the cooperation of the slider and the slide block, reducing jamming and interference during the movement. This smooth movement helps improve the accuracy of stamping and ensures the consistency of product quality.
[0009] Secondly, the insert is designed to connect with a nitrogen spring, which provides a stable reaction force to balance the lateral forces generated during stamping. This helps reduce die offset and deformation, ensures the stability of the stamping process, and improves machining accuracy.
[0010] In summary, this application, through its innovative design, significantly improves production efficiency and equipment utilization while ensuring stamping quality and reducing maintenance costs, thus possessing high practicality and promotional value.
[0011] Another objective of this application is to improve the machining accuracy of side cutting.
[0012] In some embodiments of this application, the slide block is a U-shaped structure. The slide block includes a base plate and side plates located on the left and right sides of the base plate. Baffles are provided on the front and rear sides of the slide block. A limiting ridge protrudes from the base plate of the slide block. The bottom of the slider is mounted on the slide block. The limiting ridge is embedded in the slider. When the slider is subjected to force, the slider moves along the length direction of the limiting ridge. The movement of the slider is limited by the left and right side plates and the front and rear baffles.
[0013] For ease of description in this application, the direction in which the slider moves during punching is called the front, the direction in which the slider moves when it resets after punching is called the back, and the left and right directions are located on the front and back sides.
[0014] The U-shaped structure of the slide provides excellent support and guidance, with limiting protrusions embedded within the slide to ensure it does not shift or jam during movement. The left and right side plates and front and rear baffles further restrict the slide's range of motion, ensuring it remains on the correct track throughout the stamping process. This design significantly improves the stability and reliability of the mold, thereby increasing production efficiency and product quality.
[0015] In some embodiments of this application, a stop bar is installed on the side plate, and the stop bar partially acts on the slider to restrict the slider from moving upward.
[0016] The stop bar design on the side plate effectively limits the possibility of the slider moving upwards. During the stamping process, the slider may have a tendency to move upwards. The stop bar ensures that the slider will not deviate from its track when subjected to upward force, thus maintaining the stability of the stamping process. This design not only prevents abnormal movement of the slider but also reduces mold wear and extends the mold's service life.
[0017] Thus, this application achieves high-precision limitation of the slider's motion trajectory by setting the slide block structure, ensuring that the slider can move stably along the predetermined trajectory.
[0018] In some embodiments of this application, the rear side of the slider is an inclined surface, the front side of the slider is a stepped surface, the slider is connected by a stepped surface insert, a mounting block is provided in the middle of the stepped surface, the bottom of the mounting block is embedded in the slider, and the top of the mounting block is embedded in the insert.
[0019] The insert is connected to the slider via a stepped surface, ensuring that the insert will not shift or wobble during installation. This design not only improves the installation accuracy of the insert but also reduces production failures caused by loose inserts, thereby improving production efficiency and product quality.
[0020] In some embodiments of this application, the application further includes a pressure block located above the slider. The front side of the pressure block is an inclined surface adapted to the rear side of the slider. The pressure block presses down to drive the slider to move.
[0021] The inclined surface of the pressure block is adapted to the inclined surface of the slider to ensure smooth movement of the slider when the pressure block is pressed down. The structure of the pressure block is optimized to ensure that it can apply pressure stably during the stamping process, thereby improving the accuracy and stability of stamping.
[0022] In this application, the pressure block is installed in the upper mold, while the guide rail and slide are installed in the lower mold. Pressing down on the upper mold causes the pressure block to press down as well.
[0023] In some embodiments of this application, a mounting base is provided at one end of the front side of the insert, and a guide rail is provided at the bottom surface of the other end of the front side of the insert.
[0024] The matching design of the insert's mounting base and guide rail further restricts the insert's movement trajectory, ensuring stable movement along the guide rail. The structure of the mounting base ensures that the insert always stays on the correct track during movement, avoiding stamping errors caused by insert misalignment. The guide rail not only provides excellent guidance but also enhances the insert's stability, reducing vibration and wobbling during the stamping process.
[0025] In some embodiments of this application, the mounting base includes a first side and a second side that are perpendicular to each other. The first side is a reference plane structure, and the tool is locked on the first side. A guide groove is provided on the second side, and a protrusion is provided on one side of the tool corresponding to the guide groove. The protrusion is embedded in the mounting base.
[0026] The cutting tool is mounted on the insert via a matching datum plane structure and guide groove, ensuring mounting accuracy. The datum plane structure provides a stable mounting base, while the guide groove ensures the tool does not shift during installation. This design allows the tool to be precisely aligned with the stamping position, thereby improving stamping accuracy and quality. Furthermore, the tool's protruding ridges are embedded in the guide groove of the mounting base, further enhancing tool stability.
[0027] In some embodiments of this application, a limiting block is provided above the guide rail. The limiting block is an inverted L-shaped structural member, located above the insert, and the limiting block is in contact with the top surface of the insert.
[0028] The limiting block contacts the top surface of the insert to prevent the insert from shifting or tilting during stamping. This design not only improves stamping accuracy but also reduces production failures caused by insert misalignment. The limiting block's structure is optimized to ensure that while restricting the insert's movement, it does not create unnecessary resistance to the insert's normal movement.
[0029] In some embodiments of this application, the nitrogen spring is located on the extension line of the slide, and the nitrogen spring applies a force to the insert as it moves along the slide.
[0030] This design reduces die misalignment and deformation by providing a stable reaction force to balance the lateral forces generated during stamping. The nitrogen spring not only improves the stability of the stamping process but also extends the die's lifespan. The pressure of the nitrogen spring can be adjusted according to stamping requirements, ensuring it provides appropriate reaction force under different operating conditions.
[0031] In some embodiments of this application, the nitrogen spring is positioned close to the guide rail. The position of the nitrogen spring is carefully chosen so that it can more effectively balance the lateral forces generated during the stamping process, ensuring that the insert remains stable during movement, thereby improving the stability and accuracy of the stamping process.
[0032] Based on common knowledge in the field, the above-described embodiments can be combined arbitrarily. Attached Figure Description
[0033] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.
[0034] Figure 1 shows the automotive chassis parts to be processed in this application;
[0035] Figure 2 is a structural schematic diagram of this application;
[0036] Figure 3 is a schematic diagram of the exploded structure of this application;
[0037] Figure 4 is a schematic diagram of the exploded structure of this application (II);
[0038] Figure 5 is a structural diagram of the working state of this application.
[0039] The specific reference numerals in the attached drawings are explained as follows: 1. Guide rail; 2. Cutting tool; 3. Slide block; 4. Slider; 5. Insert; 6. Nitrogen spring; 8. Stop bar; 9. Baffle; 10. Stepped surface; 11. Mounting block; 12. Pressure block; 13. Mounting seat; 15. Guide groove; 16. Protruding ridge; 17. Limiting block. Detailed Implementation
[0040] The present application will now be described in detail with reference to the accompanying drawings.
[0041] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.
[0042] A side-cutting mechanism for automotive chassis components, as shown in Figures 1 and 2, includes a guide rail 1, a cutter 2, a slide block 3, and a slider 4. An insert 5 is detachably mounted on the slider 4, and the cutter 2 is detachably mounted on the insert 5. This design features detachable inserts 5 and cutter 2, allowing the entire mold to be replaced without disassembling the equipment when the cutter 2 is damaged or requires dimensional adjustment; only the insert 5 or cutter 2 needs to be replaced. This design significantly reduces mold adjustment time and improves equipment utilization and production efficiency. The design allows for rapid adjustment and replacement of the cutter 2 to adapt to the production needs of automotive chassis components of different sizes and shapes. This flexibility enables the mold to respond quickly to production changes, improving production adaptability. The slider 4 is movably mounted on the slide block 3, and the insert 5 is partially mounted on the guide rail 1. One end of the insert 5 is connected to the slider 4. Through the cooperation of the slider 4 and the slide block 3, the insert 5 can move smoothly, reducing jamming and interference during movement. This smooth movement helps improve stamping accuracy and ensures consistent product quality. The other end of the insert 5 is connected to the nitrogen spring 6. The slider 4 is forced to move the insert 5, and the insert 5 is simultaneously subjected to a force from the nitrogen spring 6. The design of connecting the insert 5 to the nitrogen spring 6 allows the nitrogen spring 6 to provide a stable reaction force, balancing the lateral forces generated during the stamping process. This helps reduce mold offset and deformation, ensures the stability of the stamping process, and improves machining accuracy.
[0043] In summary, this application, through its innovative design, significantly improves production efficiency and equipment utilization while ensuring stamping quality and reducing maintenance costs, thus possessing high practicality and promotional value.
[0044] For ease of description in this application, the direction in which the slider 4 moves during punching is taken as the front, the direction in which the slider 4 moves when it resets after punching is taken as the back, and the left and right directions are taken as the sides located at the front and back.
[0045] In Example 2, as shown in Figures 1 to 5, the slide block 3 is a U-shaped structure. The slide block 3 includes a base plate and side plates on the left and right sides of the base plate. Baffles 9 are provided on the front and rear sides of the slide block 3. A limiting ridge 16 protrudes from the base plate of the slide block 3. The bottom of the slider 4 is mounted on the slide block 3, and the limiting ridge 16 is embedded within the slider 4. When the slider 4 is subjected to force, it moves along the length of the limiting ridge 16. The movement of the slider 4 is limited by the left and right side plates and the front and rear baffles 9. The U-shaped structure of the slide block 3 provides good support and guidance. The limiting ridge 16 embedded within the slider 4 ensures that the slider 4 will not deviate or jam during movement. The left and right side plates and the front and rear baffles 9 further limit the range of motion of the slider 4, ensuring that it remains on the correct track during the stamping process. This design significantly improves the stability and reliability of the mold, thereby improving production efficiency and product quality.
[0046] Each side plate is equipped with a stop bar 8, which partially acts on the slider 4 to restrict its upward movement. The stop bar 8 on the side plate effectively limits the possibility of the slider 4 moving upward. During the stamping process, the slider 4 may have a tendency to move upward. The stop bar 8 ensures that the slider 4 will not deviate from its track when subjected to an upward force, thus maintaining the stability of the stamping process. This design not only prevents abnormal movement of the slider 4 but also reduces mold wear and extends the mold's service life. Therefore, this application, through the design of the slide block 3 structure, provides high-precision limitation on the movement trajectory of the slider 4, ensuring that the slider 4 can move stably along the predetermined trajectory.
[0047] The rear side of the slider 4 is an inclined surface, and the front side of the slider 4 is a stepped surface 10. The slider 4 is connected by inserts 5 on the stepped surface 10. A mounting block 11 is provided in the middle of the stepped surface 10. The bottom of the mounting block 11 is embedded in the slider 4, and the top of the mounting block 11 is embedded in the insert 5. The insert 5 is connected to the slider 4 through the stepped surface 10, ensuring that the insert 5 will not shift or wobble during installation. This design not only improves the installation accuracy of the insert 5, but also reduces production failures caused by loose insert 5, thereby improving production efficiency and product quality.
[0048] This application also includes a pressure block 12, which is located above the slider 4. The front side of the pressure block 12 is an inclined surface that adapts to the rear side of the slider 4. Pressing down on the pressure block 12 causes the slider 4 to move. The inclined surface of the pressure block 12 adapts to the inclined surface of the slider 4, ensuring that the slider 4 can move smoothly when the pressure block 12 presses down. The structure of the pressure block 12 is optimized to ensure that it can apply pressure stably during the stamping process, thereby improving the stamping accuracy and stability. In this application, the pressure block 12 is installed in the upper die, while the guide rail 1 and the slide block 3 are installed in the lower die. Pressing down on the upper die causes the pressure block 12 to press down.
[0049] A mounting base 13 is provided at one end of the front side of the insert 5, and the bottom surface of the other end of the front side of the insert 5 is matched with a guide rail 1. The matching design of the mounting base 13 and the guide rail 1 further restricts the movement trajectory of the insert 5, ensuring that the insert 5 moves stably along the guide rail 1. The structure of the mounting base 13 ensures that the insert 5 always stays on the correct track during movement, avoiding stamping errors caused by the offset of the insert 5. The setting of the guide rail 1 not only provides a good guiding effect, but also enhances the stability of the insert 5, reducing vibration and shaking during the stamping process.
[0050] The mounting base 13 includes a first side and a second side that are perpendicular to each other. The first side is a reference plane structure, and the tool 2 is locked onto the first side. A guide groove 15 is provided on the second side. A protruding rib 16 is provided on one side of the tool 2 corresponding to the guide groove 15, and the protruding rib 16 is embedded in the mounting base 13. The tool 2 is mounted on the insert 5 through the matching of the reference plane structure and the guide groove 15, ensuring the installation accuracy of the tool 2. The reference plane structure provides a stable mounting base, while the guide groove 15 ensures that the tool 2 will not shift during installation. This design allows the tool 2 to be precisely aligned with the stamping position, thereby improving the stamping accuracy and quality. In addition, the protruding rib 16 of the tool 2 is embedded in the guide groove 15 of the mounting base 13, further enhancing the stability of the tool 2.
[0051] A limiting block 17 is provided above the guide rail 1. The limiting block 17 is an inverted L-shaped structure, located above the insert 5, and is in contact with the top surface of the insert 5. This contact prevents the insert 5 from shifting or tilting during the stamping process. This design not only improves the stamping accuracy but also reduces production failures caused by insert 5 shifting. The structure of the limiting block 17 is optimized to ensure that while restricting the movement of the insert 5, it does not generate unnecessary resistance to the normal movement of the insert 5.
[0052] The nitrogen spring 6 is located on the extension line of the slide block 3, and applies a force to the insert 5 as it moves along the slide block 3. This design reduces die offset and deformation by providing a stable reaction force to balance the lateral forces generated during the stamping process. The nitrogen spring 6 not only improves the stability of the stamping process but also extends the service life of the die. The pressure of the nitrogen spring 6 can be adjusted according to stamping requirements to ensure that it provides appropriate reaction force under different operating conditions.
[0053] The nitrogen spring 6 is positioned near the guide rail 1. The position of the nitrogen spring 6 is carefully selected so that it can more effectively balance the lateral forces generated during the stamping process, ensuring that the insert 5 remains stable during movement, thereby improving the stability and accuracy of the stamping process.
[0054] The rest of the contents of Example 2 are the same as those of Example 1.
[0055] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.
Claims
1. A side-cutting mechanism for an automotive chassis component, characterized in that, The system includes a guide rail (1), a cutting tool (2), a slide block (3), and a slider (4). A detachable insert (5) is mounted on the slider (4). The cutting tool (2) is detachably mounted on the insert (5). The slider (4) is movably mounted on the slide block (3). The insert (5) is partially mounted on the guide rail (1). One end of the insert (5) is connected to the slider (4), and the other end of the insert (5) is connected to a nitrogen spring (6). The slider (4) is driven by force to move the insert (5). The insert (5) is subjected to force by the nitrogen spring (6) while moving.
2. A side cutting mechanism for an automotive chassis component according to claim 1, wherein The slide block (3) is a U-shaped structure. The slide block (3) includes a base plate and side plates on the left and right sides of the base plate. The front and rear sides of the slide block (3) are provided with baffles (9). The base plate of the slide block (3) is provided with a limiting protrusion (16). The bottom of the slider (4) is installed on the slide block (3). The limiting protrusion (16) is embedded in the slider (4). When the slider (4) is subjected to force, the slider (4) moves along the length direction of the limiting protrusion (16). The movement of the slider (4) is limited by the left and right side plates and the front and rear baffles (9).
3. The side-cutting mechanism for an automobile chassis component according to claim 2, characterized in that, Each side plate is equipped with a baffle (8), which partially acts on the slider (4) to restrict the slider (4) from moving upward.
4. The side cutting mechanism of a chassis component of an automobile as claimed in claim 1, wherein, The rear side of the slider (4) is an inclined surface, and the front side of the slider (4) is a stepped surface (10). The slider (4) is connected by the stepped surface (10) insert (5). An installation block (11) is provided in the middle of the stepped surface (10). The bottom of the installation block (11) is embedded in the slider (4), and the top of the installation block (11) is embedded in the insert (5).
5. The side-cutting mechanism for an automobile chassis component according to claim 4, characterized in that, It also includes a pressure block (12), which is located above the slider (4). The front side of the pressure block (12) is an inclined surface that adapts to the rear side of the slider (4). The pressure block (12) presses down and drives the slider (4) to move.
6. The side cutting mechanism of a chassis component of an automobile as claimed in claim 1, wherein, The insert (5) has a mounting base (13) at one end of its front side and a guide rail (1) at the bottom of the other end of its front side.
7. A side-cutting mechanism for an automotive chassis component according to claim 6, wherein The mounting base (13) includes a first side and a second side that are perpendicular to each other. The first side is a reference plane structure. The tool (2) is locked on the first side. A guide groove (15) is provided on the second side. A protrusion (16) is provided on one side of the tool (2) corresponding to the guide groove (15). The protrusion (16) is embedded in the mounting base (13).
8. A side cutting mechanism for an automotive chassis component according to claim 6, wherein A limiting block (17) is provided above the guide rail (1). The limiting block (17) is an inverted L-shaped structure. The limiting block (17) is located above the insert (5). The limiting block (17) is in contact with the top surface of the insert (5).
9. The side-cutting mechanism for an automobile chassis component according to claim 1, characterized in that, The nitrogen spring (6) is located on the extension line of the slide (3), and the nitrogen spring (6) applies a force to the insert (5) to move along the slide (3).
10. The side-cutting mechanism for an automobile chassis component according to claim 9, characterized in that, The nitrogen spring (6) is located near the guide rail (1).
Citation Information
Patent Citations
Automobile body guard plate trimming and side punching die
CN213033406U