Cutting equipment for machining automobile connecting frame

Abstract

The invention discloses cutting equipment for machining an automobile connecting frame, and relates to the technical field of cutting equipment.The cutting equipment comprises a workbench, a cutting blade used for cutting is arranged on the workbench through a moving part in a sliding and lifting mode, and a cutting groove is formed in the portion, below the cutting blade, of the workbench; a limiting mechanism used for clamping and limiting automobile connecting frames of different sizes and thicknesses is arranged in the workbench, and two sets of supporting and buffering mechanisms which are used for clamping the automobile connecting frames of different thicknesses at the limiting mechanism, supporting the automobile connecting frames according to the thicknesses of the automobile connecting frames and buffering the automobile connecting frames during cutting are arranged in the workbench in an opposite mirror image mode. The horizontal position and the vertical height of the cutting blade are adjusted through the moving part, so that cutting is more flexible, the supporting buffer mechanism can automatically adjust the supporting height according to the thickness of the connecting frame, the equipment is suitable for machining connecting frames of various models, frequent clamp replacement or equipment structure adjustment is not needed, and it is ensured that the connecting frame keeps stable in the cutting process; and the cutting precision is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting equipment, and particularly relates to a cutting equipment for processing automobile connecting brackets. Background Art

[0002] Automobile connecting brackets are often made of various materials such as high-strength steel and aluminum alloy, and the cutting accuracy requirements for different parts vary greatly. In the field of automobile manufacturing, as a key component, the processing quality of automobile connecting brackets directly affects the safety and stability of automobiles.

[0003] The mechanical structure of existing cutting equipment has limited flexibility and often requires multiple clampings, which not only reduces production efficiency but also introduces errors due to multiple clampings, affecting the accuracy of the final product. In addition, when cutting an automobile connecting bracket, as the equipment runs continuously, vibrations will occur, which will cause the automobile connecting bracket to shift, resulting in easy deviation during cutting. Summary of the Invention

[0004] The purpose of the present invention is to provide a cutting equipment for processing automobile connecting brackets to solve the problems that the mechanical structure of existing cutting equipment has limited flexibility, often requires multiple clampings, and vibrations will occur as the equipment runs continuously, which will cause the automobile connecting bracket to shift.

[0005] A cutting equipment for processing automobile connecting brackets includes a workbench. A cutting blade for cutting is slidably and liftably arranged on the workbench through a moving member. A cutting groove is formed below the cutting blade on the workbench. A limiting mechanism for clamping and limiting automobile connecting brackets of different sizes and thicknesses is arranged in the workbench, and two groups of support and buffer mechanisms for buffering the automobile connecting bracket during cutting are oppositely and mirror-symmetrically arranged in the workbench to support the automobile connecting bracket of different thicknesses according to its thickness when the limiting mechanism clamps it.

[0006] Preferably, the limiting mechanism includes two groups of limiting frames that are spaced relatively and clamp and limit the left and right of automobile connecting brackets of different sizes through a driving member. Each group of limiting frames is provided with a pressing component for contacting the surface of the automobile connecting bracket to limit it up and down and prevent it from shaking during cutting through a lifting component arranged in the workbench.

[0007] Preferably, the driving member includes a lifting plate that is liftably arranged on the inner side wall of the workbench through a lifting component. A bidirectional screw is rotatably arranged in the lifting plate. The bidirectional screw is provided with two threads with opposite directions, and each thread is respectively sleeved with a threaded block. Each group of threaded blocks is respectively fixedly provided with a limiting frame. A rotating motor is fixedly arranged on the lifting plate. The output end of the rotating motor is horizontally arranged and fixedly sleeved with a driving gear. The middle section of the bidirectional screw is fixedly sleeved with a driven gear that meshes with the driving gear.

[0008] Preferably, the lifting assembly includes limiting grooves formed on the inner sidewalls of the workbench away from each other. A spring post is fixedly provided on the inner bottom wall of the limiting groove. The sliding end of the spring post is vertically upward and a sliding block is fixedly provided at the top. The lifting plate is fixedly arranged between the two sliding blocks. A driving motor is fixedly provided on the inner sidewall of the workbench. The output end of the driving motor is vertically arranged and a convex block contacting the surface of the lifting plate is fixedly provided at the top.

[0009] Preferably, the pressing assembly includes a sliding rod slidably penetrating through the top wall of the limiting frame. A limiting plate is fixedly provided at the top of the sliding rod. A spring is sleeved on the sliding rod and abuts against the side wall of the limiting plate and the top wall of the limiting frame at both ends respectively. An extrusion head contacting the surface of the vehicle connecting frame is fixedly provided on the bottom surface of the sliding rod. The top surface of the extrusion head contacting the vehicle connecting frame is a downwardly protruding arc and a rubber pad is fixedly provided thereon.

[0010] Preferably, the support and buffer mechanism includes a second guiding groove formed on the inner sidewall of the workbench and inclined. An installation rod is slidably arranged in the second guiding groove. A wedge-shaped block is fixedly provided at the top of the installation rod. A damper is fixedly provided on the wedge-shaped block. The top of the damper is fixedly provided with a support plate slidably penetrating through the slide rail and contacting the vehicle connecting frame. A linkage member is arranged in the workbench to drive the installation rod to slide in the second guiding groove while the lifting plate is lifting and lowering.

[0011] Preferably, the linkage member includes a horizontally arranged horizontal sliding groove formed on the sidewall of the lifting plate. A fixed rod is slidably arranged in the horizontal sliding groove. An inclined first guiding groove for the fixed rod to slide is formed on the inner sidewall of the workbench. A driving rod contacting the inclined surface of the wedge-shaped block is fixedly provided on the fixed rod.

[0012] Preferably, the moving member includes a slide rail fixedly provided on the workbench. A slider slidably matched with the workbench is sleeved on the slide rail. A vertically arranged bracket is fixedly provided on the slider. A horizontally arranged slide rod slidably penetrates through the bracket. An installation frame is fixedly provided at the top of the slide rod. A cutting member is arranged on the installation frame in a liftable manner. A cutting blade is rotatably installed in the cutting member. A second electric telescopic rod is fixedly provided on the bracket. The output end of the second electric telescopic rod is horizontally arranged and fixedly connected to the installation frame.

[0013] Preferably, the cutting member includes a first electric telescopic rod fixedly provided on the installation frame. The output end of the first electric telescopic rod is vertically arranged and an installation plate slidably matched with the sidewall of the installation frame is fixedly provided at the top. The cutting blade is rotatably installed in the installation plate.

[0014] The advantages of the present invention are as follows: In the cutting device for processing automotive connecting brackets of the present invention, the horizontal position and vertical height of the cutting blade are adjusted by the moving member, making the cutting more flexible. The support and buffer mechanism can automatically adjust the support height according to the thickness of the connecting bracket, enabling the device to be applicable to the processing of various models of connecting brackets without the need to frequently replace fixtures or adjust the device structure. At the same time, it ensures that the connecting bracket remains stable during the cutting process, avoiding cutting deviations caused by shaking and effectively buffering the cutting vibration while providing support, reducing material deformation and chipping phenomena, thereby improving the cutting accuracy and surface quality and reducing the scrap rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 、 2 are structural schematic diagrams of different perspectives of the present invention.

[0016] Figure 3 is a cross-sectional view of the present invention.

[0017] Figure 4 is a structural schematic diagram of the limiting mechanism in the present invention.

[0018] Figure 5 is the structural schematic of the support and buffer mechanism in the present invention Figure 1 。

[0019] Figure 6 is a cross-sectional view of the pressurizing component in the present invention.

[0020] Figure 7 is the structural schematic of the support and buffer mechanism in the present invention Figure 2 。

[0021] Figure 8 is a cross-sectional view of the support and buffer mechanism in the present invention.

[0022] Among them, 100, workbench; 101, slide rail; 102, slider; 103, bracket; 104, slide bar; 105, mounting bracket; 106, first electric telescopic rod; 107, mounting plate; 108, cutting blade; 109, second electric telescopic rod; 110, cutting groove; 200, limiting mechanism; 201, lifting plate; 202, bidirectional screw; 203, rotating motor; 204, driving gear; 205, driven gear; 206, threaded block; 207, limiting frame; 208, sliding rod; 209, limiting plate; 210, spring; 211, extrusion head; 300, lifting component; 301, limiting groove; 302, spring column; 303, sliding block; 304, driving motor; 305, convex block; 400, support and buffer mechanism; 401, horizontal chute; 402, first guiding groove; 403, fixed rod; 404, driving rod; 405, second guiding groove; 406, mounting rod; 407, wedge-shaped block; 408, damper; 409, support plate. Detailed implementation manners

[0023] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0024] As Figures 1 to 8 shown, a cutting device for processing an automotive connection bracket includes a workbench 100. On the workbench 100, a cutting blade 108 for cutting is provided slidably and liftably through a moving member. A cutting groove 110 is formed below the cutting blade 108 on the workbench 100. A limiting mechanism 200 for clamping and limiting automotive connection brackets of different sizes and thicknesses is provided in the workbench 100. And two groups of support and buffer mechanisms 400 for buffering the automotive connection bracket during cutting are provided in the workbench 100 in a relatively mirror-image manner. The two groups of support and buffer mechanisms 400 support the automotive connection brackets of different thicknesses according to their thicknesses when the limiting mechanism 200 clamps them.

[0025] In this embodiment, the limiting mechanism 200 includes two groups of limiting frames 207 that are spaced relatively and clamp and limit the left and right sides of automotive connection brackets of different sizes through a driving member. On each group of limiting frames 207, a pressing component is provided through a lifting component 300 provided in the workbench 100. The pressing component is used to contact the surface of the automotive connection bracket to limit its up and down movement and prevent shaking during cutting.

[0026] When the driving member is started, it drives the two groups of limiting frames 207 to move towards each other until they are in close contact with the left and right side surfaces of the automotive connection bracket, completing the preliminary positioning and clamping of the connection bracket in the horizontal direction. When the limiting frames 207 complete the horizontal clamping, the lifting member provided in the workbench 100 drives the pressing component to move downward, so that it contacts the upper surface of the automotive connection bracket and applies a certain pressure, thereby realizing the limiting of the connection bracket in the vertical direction and preventing up and down shaking during the cutting process.

[0027] In this embodiment, the driving member includes a lifting plate 201 that is liftable through the lifting component 300 and is provided on the inner side wall of the workbench 100. A bidirectional screw 202 is rotatably provided in the lifting plate 201. The bidirectional screw 202 has two threads with opposite helical directions, and each thread is respectively sleeved with a threaded block 206. Each group of threaded blocks 206 is respectively fixedly provided with a limiting frame 207. A rotary motor 203 is fixedly provided on the lifting plate 201. The output end of the rotary motor 203 is horizontally arranged and fixedly sleeved with a driving gear 204. A driven gear 205 that meshes with the driving gear 204 is fixedly sleeved on the middle section of the bidirectional screw 202.

[0028] According to the height of the vehicle connection bracket, the lifting member drives the lifting plate 201 to adjust up and down on the inner side wall of the workbench 100, so that the bidirectional screw 202 is in a suitable height position to adapt to workpieces of different height specifications. The rotation motor 203 is started, and its output end drives the driving gear 204 to rotate. The driving gear 204 drives the bidirectional screw 202 to rotate in the lifting plate 201 through meshing with the driven gear 205. Since two sections of threads with opposite helical directions are provided on the bidirectional screw 202, and threaded blocks 206 are respectively sleeved on each section of the thread, the rotation of the bidirectional screw 202 will cause the threaded blocks 206 on the two sections of the thread to move in opposite directions, thereby driving the two groups of limit frames 207 fixed on the threaded blocks 206 to move towards or away from each other, realizing the clamping or releasing operation of the vehicle connection bracket.

[0029] In this embodiment, the lifting assembly 300 includes limit grooves 301 opened on the inner side walls of the workbench 100 that are far away from each other. A spring post 302 is fixedly provided on the inner bottom wall of the limit groove 301. The sliding end of the spring post 302 is vertically upward and a sliding block 303 is fixedly provided at the top. The lifting plate 201 is fixedly arranged between the two sliding blocks 303. A driving motor 304 is fixedly provided on the inner side wall of the workbench 100. The output end of the driving motor 304 is vertically arranged and a convex block 305 that contacts the surface of the lifting plate 201 is fixedly provided at the top.

[0030] When it is necessary to adjust the height of the limit frame 207 to adapt to vehicle connection brackets of different specifications, the driving motor 304 is started, and its output end drives the convex block 305 to rotate. As the convex block 305 rotates, when the protruding part of the convex block 305 contacts the surface of the lifting plate 201, it will push the lifting plate 201 to move upward. At this time, the sliding blocks 303 at both ends of the lifting plate 201 slide upward along the spring posts 302 in the limit grooves 301, and the spring posts 302 are compressed to store elastic potential energy. When the protruding part of the convex block 305 leaves the surface of the lifting plate 201, the spring posts 302 release the elastic potential energy and push the sliding blocks 303 and the lifting plate 201 to reset downward. By controlling the rotation angle and speed of the driving motor 304, the height position of the lifting plate 201 can be accurately adjusted, thereby realizing the height adjustment of the limit frame 207.

[0031] In this embodiment, the pressing assembly includes a sliding rod 208 that slidably penetrates the top wall of the limit frame 207. A limit plate 209 is fixedly provided at the top of the sliding rod 208, and a spring 210 is sleeved on the sliding rod 208 and its two ends are respectively in contact with the side wall of the limit plate 209 and the top wall of the limit frame 207. An extrusion head 211 that contacts the surface of the vehicle connection bracket is fixedly provided at the bottom surface of the sliding rod 208. The top surface of the extrusion head 211 that contacts the vehicle connection bracket is a downwardly protruding arc and a rubber pad is fixedly provided thereon.

[0032] After the limit frame 207 completes the horizontal clamping of the vehicle connecting frame, the limit frame 207 moves downward under the drive of the lifting member, driving the sliding rod 208 and the extrusion head 211 to move downward together and approach the upper surface of the vehicle connecting frame. When the extrusion head 211 contacts the upper surface of the vehicle connecting frame, the limit frame 207 continues to move downward. At this time, the sliding rod 208 slides upward relative to the limit frame 207, compressing the spring 210. The elastic force generated by the spring 210 is transmitted to the extrusion head 211 through the sliding rod 208, so that the extrusion head 211 exerts a stable pressure on the upper surface of the vehicle connecting frame, realizing the vertical limit of the connecting frame. The elastic characteristics of the spring 210 enable the extrusion head 211 to automatically adjust the pressure according to the surface shape and height change of the vehicle connecting frame, ensuring that the vertical limit effect on the workpiece is stable and reliable during the entire cutting process. When the extrusion head 211 contacts the upper surface of the vehicle connecting frame, since the top surface of the extrusion head 211 is a downward protruding arc shape, the contact points with the workpiece surface are circularly distributed, and the pressure can be evenly dispersed in the contact area. The presence of the rubber pad further enhances the friction between the extrusion head 211 and the workpiece surface, preventing the workpiece from sliding during the cutting process. At the same time, the elastic characteristics of the rubber pad can absorb the vibration generated during the cutting process and reduce the impact on the workpiece. During the entire cutting process, the extrusion head 211 continuously exerts a stable pressure on the vehicle connecting frame through the arc-shaped top surface and the rubber pad to ensure the cutting accuracy. After the cutting is completed, the extrusion head 211 moves upward together with the limit frame 207 to relieve the pressure on the workpiece.

[0033] In this embodiment, the support buffer mechanism 400 includes a second guide groove 405 opened on the inner side wall of the workbench 100 and inclinedly arranged. An installation rod 406 is slidably arranged in the second guide groove 405. A wedge-shaped block 407 is fixedly arranged at the top end of the installation rod 406. A damper 408 is fixedly arranged on the wedge-shaped block 407. The top end of the damper 408 is fixedly provided with a support plate 409 that slidably penetrates through the slide rail 101 and contacts the vehicle connecting frame. A linkage member is arranged in the workbench 100 to drive the installation rod 406 to slide in the second guide groove 405 while the lifting plate 201 is lifting and lowering.

[0034] During the process of the lifting plate 201 lifting and lowering with the limit frame 207, the linkage member starts to work, driving the installation rod 406 to slide in the inclined second guide groove 405. The sliding of the installation rod 406 causes the wedge-shaped block 407 to move, and then pushes the damper 408 and the support plate 409 to move upward until the support plate 409 contacts the bottom of the vehicle connecting frame and provides a support force according to the thickness of the connecting frame. The damper 408 plays a buffering role, absorbing the vibration and impact force generated during the cutting process.

[0035] In this embodiment, the linkage member includes a horizontally arranged horizontal sliding groove 401 formed in the side wall of the lifting plate 201. A fixing rod 403 is slidably arranged in the horizontal sliding groove 401. An inclined first guiding groove 402 for the fixing rod 403 to slide is formed in the inner side wall of the workbench 100. A driving rod 404 that contacts the inclined surface of the wedge-shaped block 407 is fixedly arranged on the fixing rod 403.

[0036] When the lifting plate 201 rises or falls driven by the lifting member, the horizontal sliding groove 401 formed in its side wall moves accordingly. The fixing rod 403 in the horizontal sliding groove 401 slides in the inclined first guiding groove 402. Due to the inclination angle of the first guiding groove 402, the fixing rod 403 generates displacements in the horizontal and vertical directions. The displacement of the fixing rod 403 drives the driving rod 404 fixedly connected thereto to move. The driving rod 404 contacts the inclined surface of the wedge-shaped block 407 and pushes the wedge-shaped block 407 to slide in the second guiding groove 405. The sliding of the wedge-shaped block 407 drives the support plate 409 to lift through the damper 408, so that it contacts the bottom of the vehicle connection frame and provides support and buffering. When the lifting plate 201 moves in the reverse direction, the fixing rod 403 and the driving rod 404 drive the wedge-shaped block 407 to slide in the reverse direction, and the support plate 409 descends and resets to complete the entire linkage process.

[0037] In this embodiment, the moving member includes a slide rail 101 fixedly arranged on the workbench 100. A slider 102 slidably engaged with the workbench 100 is sleeved on the slide rail 101. A vertically arranged support 103 is fixedly arranged on the slider 102. A horizontally arranged slide rod 104 slidably penetrates through the support 103. An installation frame 105 is fixedly arranged at the top end of the slide rod 104. A cutting member is arranged on the installation frame 105 in a liftable manner. A cutting blade 108 is rotatably installed in the cutting member, and a second electric telescopic rod 109 is fixedly arranged on the support 103. The output end of the second electric telescopic rod 109 is horizontally arranged and fixedly connected to the installation frame 105.

[0038] The slider 102 slides on the slide rail 101, driving the support 103, the slide rod 104, the installation frame 105 and the cutting blade 108 fixedly arranged on the slider 102 to move integrally in the horizontal transverse direction, realizing the adjustment of the cutting position in the horizontal transverse direction. When the second electric telescopic rod 109 is started, the telescopic movement of its output end drives the installation frame 105 to move horizontally longitudinally along the slide rod 104, and further drives the cutting blade 108 to adjust its position in the horizontal longitudinal direction, so that the cutting blade 108 can be aligned with the part to be cut on the vehicle connection frame.

[0039] In this embodiment, the cutting member includes a first electric telescopic rod 106 fixedly arranged on the mounting frame 105. The output end of the first electric telescopic rod 106 is vertically arranged, and a mounting plate 107 which is slidably matched with the side wall of the mounting frame 105 is fixedly arranged at the top thereof. The cutting blade 108 is rotatably mounted in the mounting plate 107.

[0040] The output end of the first electric telescopic rod 106 drives the mounting plate 107 to slide vertically up and down along the side wall of the mounting frame 105, so as to adjust the vertical height of the cutting blade 108, and keep a proper cutting distance between the cutting blade 108 and the part to be cut of the vehicle connection frame. After the cutting blade 108 is adjusted to a proper height, start the driving device of the cutting blade 108 to make it rotate at a high speed or perform a reciprocating motion to cut the vehicle connection frame.

[0041] Working process and principle: When this device is in use, automotive connection brackets of different sizes and thicknesses are placed on the workbench 100. The drive motor 304 is started, and the bump 305 at its output end rotates, pushing the lifting plate 201 to rise along the spring column 302 in the limit slot 301, so that the lifting plate 201 drives the limit frame 207 to adjust to an appropriate height. The rotation motor 203 drives the driving gear 204 to rotate, and through the driven gear 205, the bidirectional screw rod 202 rotates. The two threads with opposite helix directions drive the threaded blocks 206 to move towards each other, thereby driving the two limit frames 207 to clamp and limit the automotive connection bracket from left and right. As the limit frame 207 moves downward, the sliding rod 208 penetrates the top wall of the limit frame 207 and slides downward, and the spring 210 is compressed. The extrusion head 211 contacts the upper surface of the automotive connection bracket and applies pressure, completing the up and down limit of the connection bracket to prevent shaking during cutting. During the lifting process of the lifting plate 201, the horizontal chute 401 opened on its side wall drives the fixed rod 403 to slide in the inclined first guide groove 402. The displacement of the fixed rod 403 causes the driving rod 404 to push the wedge-shaped block 407 to slide in the second guide groove 405. The movement of the wedge-shaped block 407 drives the support plate 409 to rise through the damper 408 until the support plate 409 contacts the bottom of the automotive connection bracket and provides a supporting force according to the thickness of the connection bracket. The damper 408 plays a buffering role to absorb cutting vibrations and impact forces. The slider 102 slides on the slide rail 101, driving the bracket 103, the slide rod 104, the mounting bracket 105 and the cutting blade 108 to move horizontally and laterally. The second electric telescopic rod 109 expands and contracts, pushing the mounting bracket 105 to move horizontally and longitudinally along the slide rod 104, moving the cutting blade 108 above the part to be cut. The first electric telescopic rod 106 expands and contracts, driving the mounting plate 107 to move vertically along the side wall of the mounting bracket 105, adjusting the vertical height of the cutting blade 108 to keep an appropriate distance from the part to be cut on the automotive connection bracket. Start the driving device of the cutting blade 108 to make it rotate at high speed or reciprocate, and start cutting the automotive connection bracket. The generated waste materials and debris fall and are collected through the cutting groove 110 on the workbench 100.

[0042] As is known by technical common sense, the present invention can be implemented by other embodiments without departing from its spiritual essence or essential features. Therefore, the above-disclosed embodiments are illustrative in all aspects and not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are encompassed by the present invention.

Claims

1. A cutting device for processing an automotive connecting bracket, characterized in that: It includes a workbench (100), on which a cutting blade (108) for cutting is provided in a slidable and liftable manner through a moving member. A cutting groove (110) is formed below the cutting blade (108) on the workbench (100). A limiting mechanism (200) for clamping and limiting automotive connection brackets of different sizes and thicknesses is provided inside the workbench (100), and two sets of support and buffer mechanisms (400) for buffering the automotive connection brackets during cutting are provided in a relatively mirror image manner inside the workbench (100). The support and buffer mechanisms (400) support the automotive connection brackets of different thicknesses according to their thickness when the limiting mechanism (200) clamps them.

2. The cutting device for processing an automotive connecting bracket according to claim 1, wherein: The limiting mechanism (200) includes two sets of limiting frames (207) that are spaced relatively and clamp and limit the left and right sides of automotive connection brackets of different sizes through a driving member. On each set of limiting frames (207), a pressing component is provided through a lifting component (300) provided inside the workbench (100) for contacting the surface of the automotive connection bracket to limit its up and down movement and prevent shaking during cutting.

3. A cutting device for processing an automotive connecting frame according to claim 2, characterized in that: The driving member includes a lifting plate (201) that is liftable through the lifting component (300) and is provided on the inner side wall of the workbench (100). A bidirectional screw (202) is rotatably provided inside the lifting plate (201). The bidirectional screw (202) has two threads with opposite helical directions, and a threaded block (206) is threadedly sleeved on each thread. A limiting frame (207) is fixedly provided on each set of threaded blocks (206). A rotary motor (203) is fixedly provided on the lifting plate (201). The output end of the rotary motor (203) is horizontally arranged and fixedly sleeved with a driving gear (204). A driven gear (205) meshing with the driving gear (204) is fixedly sleeved on the middle section of the bidirectional screw (202).

4. A cutting device for processing an automotive connecting frame according to claim 3, characterized in that: The lifting component (300) includes limiting grooves (301) formed on the mutually remote inner side walls of the workbench (100). A spring column (302) is fixedly provided on the inner bottom wall of the limiting groove (301). The sliding end of the spring column (302) is vertically upward and its top is fixedly provided with a sliding block (303). The lifting plate (201) is fixedly provided between the two sets of sliding blocks (303). A driving motor (304) is fixedly provided on the inner side wall of the workbench (100). The output end of the driving motor (304) is vertically arranged and its top is fixedly provided with a convex block (305) that contacts the surface of the lifting plate (201).

5. A cutting device for processing an automotive connecting frame according to claim 3, characterized in that: The pressing component includes a sliding rod (208) that slidably penetrates the top wall of the limiting frame (207). A limiting plate (209) is fixedly provided at the top of the sliding rod (208). A spring (210) whose two ends are respectively abutted against the side wall of the limiting plate (209) and the top wall of the limiting frame (207) is sleeved on the sliding rod (208). An extrusion head (211) that contacts the surface of the automotive connection bracket is fixedly provided on the bottom surface of the sliding rod (208). The top surface of the extrusion head (211) that contacts the automotive connection bracket is downwardly protruding in an arc shape and is fixedly provided with a rubber pad.

6. The cutting device for processing an automotive connecting bracket according to claim 3, wherein: The support and buffer mechanism (400) includes a second guiding groove (405) which is inclined and formed on the inner side wall of the workbench (100). An installation rod (406) is slidably arranged in the second guiding groove (405). A wedge-shaped block (407) is fixedly arranged at the top end of the installation rod (406). A damper (408) is fixedly arranged on the wedge-shaped block (407). The top end of the damper (408) is fixedly provided with a support plate (409) which slidably penetrates through the slide rail (101) and contacts the vehicle connecting frame. A linkage is arranged in the workbench (100) to drive the installation rod (406) to slide in the second guiding groove (405) while the lifting plate (201) is lifted and lowered.

7. A cutting device for processing an automotive connecting bracket according to claim 6, characterized in that: The linkage includes a horizontally arranged horizontal sliding groove (401) formed on the side wall of the lifting plate (201). A fixing rod (403) is slidably arranged in the horizontal sliding groove (401). An inclined first guiding groove (402) for the fixing rod (403) to slide is formed on the inner side wall of the workbench (100). A driving rod (404) which contacts the inclined surface of the wedge-shaped block (407) is fixedly arranged on the fixing rod (403).

8. A cutting device for processing an automotive connecting bracket according to claim 1, characterized in that: The moving member includes a slide rail (101) fixedly arranged on the workbench (100). A slider (102) which is slidably matched with the workbench (100) is sleeved on the slide rail (101). A vertically arranged support (103) is fixedly arranged on the slider (102). A horizontally arranged slide rod (104) slidably penetrates through the support (103). An installation frame (105) is fixedly arranged at the top end of the slide rod (104). A cutting member is arranged on the installation frame (105) in a liftable manner. A cutting blade (108) is rotatably installed in the cutting member. A second electric telescopic rod (109) is fixedly arranged on the support (103). The output end of the second electric telescopic rod (109) is horizontally arranged and fixedly connected with the installation frame (105).

9. A cutting device for processing an automotive connecting bracket according to claim 8, characterized in that: The cutting member includes a first electric telescopic rod (106) fixedly arranged on the installation frame (105). The output end of the first electric telescopic rod (106) is vertically arranged and its top end is fixedly provided with a mounting plate (107) which is slidably matched with the side wall of the installation frame (105). The cutting blade (108) is rotatably installed in the mounting plate (107).

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