Intelligent positioning type numerical control bending equipment
By introducing anti-scratch and support components into CNC bending equipment, and using air pumps to blow air and high-pressure airflow to clean impurities, the problems of scraping between the sheet metal and the lower die and the accumulation of impurities are solved, thus achieving stable bending of the sheet metal and high-quality finished products.
Patent Information
- Application Number
- CN202610458973.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-09
- Publication Date
- 2026-05-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the bending process of existing CNC bending equipment, the sheet metal is prone to rubbing against the lower die, causing scratches. Furthermore, impurities can easily accumulate in the groove of the lower die, affecting the quality of the sheet metal.
An intelligent positioning CNC bending machine was designed, comprising an upper die, a lower die, a CNC sliding frame, a stop block, a stabilizing component, an anti-scratch component, and a lifting component. The anti-scratch component uses an air pump to blow air and the lifting component uses adsorption to fix the sheet metal to prevent it from rubbing against the lower die. High-pressure airflow is used to clean impurities from the groove of the lower die.
It effectively prevents the sheet metal from rubbing against the lower die, improves the stability of the sheet metal, prevents deformation of the lower die and accumulation of impurities, and ensures bending quality.
Smart Images

Figure CN122007213A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of CNC bending equipment technology, specifically an intelligent positioning CNC bending equipment. Background Technology
[0002] A CNC bending machine is a precision machine tool that applies pressure to sheet metal, causing it to undergo plastic deformation and thus bending it into a specific angle or shape. Simply put, it is the "shaper" in sheet metal processing, responsible for bending cut flat metal into the three-dimensional shapes we need, such as chassis shells, elevator doors, and automotive parts.
[0003] Existing CNC machine tools can use computer-controlled material holders to intelligently position and receive sheet metal for more precise bending. However, during the bending process, manual support is required to lift the sheet metal. When the upper die rises during the bending process, the sheet metal is very likely to rub against the lower die during manual operation, causing scratches and affecting the quality of the finished product. Furthermore, small particles of impurities from the processing environment can easily accumulate in the grooves of the lower die, which can also affect the quality of the sheet metal during the downward bending process.
[0004] Therefore, an intelligent positioning CNC bending machine is proposed. Summary of the Invention
[0005] The purpose of this invention is to provide an intelligent positioning CNC bending machine to solve the problems in the prior art where the sheet metal is easily scratched by the lower die during the bending process, thus affecting the quality of the finished product. Furthermore, small particulate impurities from the processing environment easily accumulate in the groove of the lower die, which can also affect the quality of the sheet metal during the bending process.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an intelligent positioning CNC bending machine, comprising a machine tool, an upper die, a lower die, a CNC sliding frame, a stop block, a stabilizing component, an anti-scratch component, and a lifting component; the upper die is slidably connected to the machine tool, the lower die is fixedly connected to the machine tool, the CNC sliding frame is slidably connected to the machine tool, the stop block is slidably connected to the CNC sliding frame, the stabilizing component is located on both sides of the lower die, the anti-scratch component is slidably connected to the stabilizing component, and the lifting component is slidably connected to the outer side of the lower die; after the upper die rises, the anti-scratch component rises accordingly and blows air into the groove of the lower die; during the bending process of the sheet metal by the lower die descending, the lifting component supports the sheet metal... The adsorption and stabilizing components tighten the top of the lower mold. When placing long sheets, the movable lifting component lifts and adsorbs the sheet, improving its stability. When no longer needed, the lifting component can be removed. During the bending process of the upper mold, the stabilizing component tightens and stabilizes the top sides of the lower mold, preventing deformation of the lower mold due to long-term impact between the upper and lower molds. After the upper mold bends and rises, the anti-scratch component rises simultaneously under the air pump's blowing action, lifting the sheet so that workers can move it. This effectively prevents the sheet from rubbing against the lower mold. The anti-scratch component continues to blow air after rising, spraying air into the grooves of the lower mold to prevent the accumulation of impurities.
[0007] Preferably, the stabilizing component includes a stabilizing block, a crossbar, a grooved pusher block, and a pushing block. The stabilizing block is tightly attached to both sides of the lower mold. The crossbar passes through the lower mold and is fixedly connected between the stabilizing blocks on both sides of the lower mold. The grooved pusher block is slidably connected to the lower mold, and the pushing block is slidably connected to the lower mold. The pushing block is located below the crossbar, and its outer end abuts against the stabilizing block. The inner end of the pushing block is obliquely cut, and the bottom of the grooved pusher block abuts against the obliquely cut part of the inner end of the pushing block. During the process of the upper mold descending and bending the sheet metal on the lower mold, the stabilizing block can clamp and stabilize both sides of the lower mold. When the upper mold presses against the bottom of the groove of the lower mold, it will apply downward pressure to the grooved pusher block, thereby pushing the grooved pusher block to move down and push the pushing block to extend to both sides of the lower mold. This pushes the bottom of the stabilizing block outward, and pushes the top of the stabilizing block inward along the crossbar, thereby strengthening the stabilizing effect of the stabilizing block on the lower mold.
[0008] Preferably, the anti-scratch component includes a telescopic groove, a sliding column, an airflow channel, an air jet pipe, a connecting pipe, an air pump, and a blocking component. The telescopic groove is formed on the stabilizing block, the sliding column is slidably connected to the telescopic groove, the top of the sliding column is provided with a rubber pad, the airflow channel is formed inside the sliding column, the air jet pipe is formed near the top of the sliding column and connected to the top of the airflow channel, the connecting pipe is connected to the bottom of the telescopic groove on each set of stabilizing blocks, the air pump is fixedly connected to the machine tool, and the connecting pipe is connected to the air pump through an air pipe, and the blocking component is slidably connected to the lower die. After the upper die bends and rises the sheet metal on the lower die, the air pump will immediately start the pumping mode, quickly pumping gas into the telescopic groove, thereby pushing the sliding column to rise and lift the sheet metal. This prevents the sheet metal from contacting the lower die and causing scratches during manual handling of the sheet metal. At the same time, during the process of the gas being pumped into the telescopic groove and pushing the sliding column to rise, a small portion of the gas will be discharged along the narrower diameter airflow channel, thereby forming a high-pressure airflow. After the sliding column rises, the groove of the lower die is cleaned to prevent the accumulation of impurities from affecting the bending quality.
[0009] Preferably, the jet pipe extends outward from the airflow channel at a downward angle, with the jet pipe facing the lower mold groove. This ensures that the airflow ejected from the jet pipe can directly blow into the lower mold groove after the sliding column rises, thus guaranteeing the jetting effect.
[0010] Preferably, the blocking component includes a sliding groove, a pin, a spring, and a connecting groove; the sliding groove is formed on both sides of the lower mold, the pin is slidably connected to the sliding groove, the spring is fixedly connected between the pin and the sliding groove, the outer end of the pin is inclined, and the connecting groove is formed on the sliding column. The shape of the connecting groove matches the shape of the end of the pin. After the gas pushes the sliding column upward, the connecting groove on the sliding column will reach the pin position, and the pin will engage with the connecting groove, thereby limiting the upward movement of the sliding column.
[0011] Preferably, the top surface of the pin is flat, the jet pipe extends into a sliding column, and when the bottom of the sliding column is at the bottom of the telescopic groove, the pin is positioned close to the bottom of the jet pipe. As the sliding column begins to rise under the push of the airflow, the airflow from the jet pipe blows towards the top of the pin, and the pin can support the airflow. In turn, the reaction force of the airflow can assist the rise of the sliding column.
[0012] Preferably, the lifting assembly includes a slide groove, a support plate, and a buffer pad; the slide groove is fixedly connected to the outside of the lower die, the support plate is slidably connected to the slide groove, and the buffer pad is fixedly connected to the top surface of the support plate; when bending long sheet materials, the movable lifting assembly can lift the sheet material, keeping the sheet material parallel and in contact with the top of the lower die, thereby improving the stability of the sheet material and preventing deviation during bending; when lifting is not required, the lifting assembly can be removed.
[0013] Preferably, the tray is also embedded with multiple sets of adsorption ports, which are flush with the top surface of the tray. The bottom of the adsorption ports is connected to an air pipe, which is connected to an air pump. After the material is placed on the push plate, the air pump will start the suction mode to generate negative pressure at the adsorption port to adsorb the material, further improving the stability of the material.
[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. In the process of bending the sheet metal on the lower die by the descent of the upper die, the stabilizing block can clamp and stabilize both sides of the lower die, preventing deformation of both sides of the lower die due to the compression of the upper die on the lower die under long-term operation. When the upper die is pressed to the bottom of the groove of the lower die, it will apply downward pressure to the groove push block, thereby pushing the groove push block to move down and push the push block to extend to both sides of the lower die. It has an outward pushing tendency on the bottom of the stabilizing block, thereby pushing the upper part of the stabilizing block to tighten inward along the crossbar, thereby strengthening the stabilizing effect of the stabilizing block on the lower die.
[0015] 2. In this invention, after the upper die bends and raises the sheet metal on the lower die, the air pump will immediately start pumping air, rapidly pumping gas into the telescopic groove, thereby pushing the sliding column upward to lift the sheet metal. This prevents the sheet metal from contacting the lower die and causing scratches during manual handling of the sheet metal. At the same time, as the gas is pumped into the telescopic groove to push the sliding column upward, a small portion of the gas will be discharged along the narrow airflow channel, thus forming a high-pressure airflow. After the sliding column rises, the groove of the lower die is cleaned to prevent the accumulation of impurities from affecting the bending quality. Also, when the sliding column is first pushed upward by the airflow, the airflow from the jet pipe will first blow towards the top of the pin, which can support the ejected airflow. The reaction force of the airflow can then assist the upward movement of the sliding column.
[0016] 3. When bending long sheet materials, the movable lifting component of this invention lifts the sheet material, keeping it parallel and in close contact with the top of the lower mold. After the sheet material is placed on the push plate, the air pump will start the suction mode to generate negative pressure at the suction port to adsorb the sheet material, which further improves the stability of the sheet material and prevents deviation during the bending process. When the lifting is not needed, the lifting component can be removed. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the overall appearance of the present invention; Figure 2 This is an enlarged structural diagram of the upper mold box and lower mold of the present invention; Figure 3 This is an enlarged structural diagram of the anti-scratch component of the present invention; Figure 4This is a cross-sectional view of the stabilizing component of the present invention; Figure 5 This is a perspective view of the stabilizing component of the present invention; Figure 6 This is a cross-sectional view of the anti-scratch component of the present invention; Figure 7 This is a schematic diagram of the extended state of the anti-scratch component of the present invention; Figure 8 This is a three-dimensional structural diagram of the lifting component of the present invention.
[0018] In the diagram: 1. Machine tool; 2. Upper mold; 3. Lower mold; 4. CNC sliding frame; 5. Stop block; 6. Stabilizing component; 61. Stabilizing block; 62. Crossbar; 63. Groove push block; 64. Push block; 7. Anti-scratch component; 71. Telescopic groove; 72. Sliding column; 73. Airflow channel; 74. Air jet pipe; 75. Connecting pipe; 76. Air pump; 77. Stopping component; 771. Sliding groove; 772. Pin; 773. Spring; 774. Insertion groove; 8. Lifting component; 81. Slide groove; 82. Support plate; 821. Suction port; 83. Buffer pad. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] Please see Figures 1 to 8 This invention provides an intelligent positioning CNC bending machine, the technical solution of which is as follows: Reference Figures 1 to 3The CNC bending equipment includes a machine tool 1, an upper die 2, a lower die 3, a CNC sliding frame 4, a stop block 5, a stabilizing component 6, an anti-scratch component 7, and a lifting component 8. The upper die 2 is slidably connected to the machine tool 1, the lower die 3 is fixedly connected to the machine tool 1, the CNC sliding frame 4 is slidably connected to the machine tool 1, the stop block 5 is slidably connected to the CNC sliding frame 4, the stabilizing component 6 is located on both sides of the lower die 3, the anti-scratch component 7 is slidably connected to the stabilizing component 6, and the lifting component 8 is slidably connected to the outer side of the lower die 3. When the upper die 2 rises, the anti-scratch component 7 rises accordingly and blows air into the groove of the lower die 3. During the bending process of the upper die 2, the lifting component 8 adsorbs and fixes the sheet metal, while the stabilizing component 6 tightens the top of the lower die 3. During the bending process, the CNC sliding frame 4 can automatically adjust its position. Then, the operator manually places one end of the sheet metal on the edge of the stop block 5 to determine the bending position. Then, the upper mold 2 can be lowered to bend the sheet metal. When placing a long sheet metal, the lifting component 8 can be moved to lift and hold the sheet metal, improving its stability. When lifting is not needed, the lifting component 8 can be removed. During the bending process of the upper mold 2, the stabilizing component 6 can tighten and stabilize the top two sides of the lower mold 3, preventing the lower mold 3 from deforming due to long-term impact between the upper mold 2 and the lower mold 3. At the same time, after the upper mold 2 bends and rises, the anti-scratch component 7 will rise simultaneously under the blowing action of the air pump 76, lifting the sheet metal. Then, the worker can move the sheet metal, which can effectively prevent the sheet metal from rubbing against the lower mold 3. After the anti-scratch component 7 rises, it will continue to blow air to the groove of the lower mold 3 to prevent the accumulation of impurities.
[0021] Reference Figure 4 and Figure 5 The stabilizing component 6 includes a stabilizing block 61, a crossbar 62, a grooved pusher block 63, and a pushing block 64. The stabilizing block 61 is tightly attached to both sides of the lower mold 3. The crossbar 62 passes through the lower mold 3 and is fixedly connected between the stabilizing blocks 61 on both sides of the lower mold 3. The grooved pusher block 63 is slidably connected to the lower mold 3. The pushing block 64 is slidably connected to the lower mold 3. The pushing block 64 is located below the crossbar 62, and its outer end abuts against the stabilizing block 61. The inner end of the pushing block 64 is obliquely cut. The bottom of the grooved pusher block 63 abuts against the obliquely cut part of the inner end of the pushing block 64. During the bending process of the plate on the lower die 3 by the descent of the upper die 2, the stabilizing block 61 can clamp and stabilize the two sides of the lower die 3, preventing deformation of the two sides of the lower die 3 due to the squeezing of the upper die 2 on the lower die 3 under long-term operation. When the upper die 2 squeezes to the bottom of the groove of the lower die 3, it will apply downward pressure to the groove push block 63, thereby pushing the groove push block 63 to move down and push the push block 64 to extend to the two sides of the lower die 3, pushing the bottom of the stabilizing block 61 outward, and pushing the upper part of the stabilizing block 61 inward along the crossbar 62, thereby strengthening the stabilizing effect of the stabilizing block 61 on the lower die 3.
[0022] Reference Figure 6 and Figure 7 The anti-scratch component 7 includes a telescopic groove 71, a sliding column 72, an airflow channel 73, a jet pipe 74, a connecting pipe 75, an air pump 76, and a blocking element 77. The telescopic groove 71 is formed on the stabilizing block 61. The sliding column 72 is slidably connected to the telescopic groove 71. The top of the sliding column 72 is provided with a rubber pad. The airflow channel 73 is formed inside the sliding column 72. The jet pipe 74 is formed near the top of the sliding column 72 and is connected to the top of the airflow channel 73. The connecting pipe 75 is connected to the bottom of the telescopic groove 71 on each set of stabilizing blocks 61. The air pump 76 is fixedly connected to the machine tool 1, and the connecting pipe 75 is connected to the air pump. The components 76 are connected by an air pipe, and the blocking component 77 is slidably connected to the lower mold 3. After the upper mold 2 bends and raises the sheet metal on the lower mold 3, the air pump 76 will immediately start the pumping mode, quickly pumping the gas into the telescopic groove 71, which in turn pushes the sliding column 72 to rise and lift the sheet metal. This prevents the sheet metal from contacting the lower mold 3 and causing scratches during manual turning of the sheet metal. At the same time, during the process of the gas being pumped into the telescopic groove 71 and pushing the sliding column 72 to rise, a small portion of the gas will be discharged along the narrow airflow channel 73, thus forming a high-pressure airflow. After the sliding column 72 rises, the groove of the lower mold 3 is cleaned to prevent the accumulation of impurities from affecting the bending quality.
[0023] Reference Figure 6 The jet pipe 74 extends outward from the airflow channel 73 and is inclined downward. The jet pipe 74 faces the groove of the lower mold 3, so that the airflow ejected from the jet pipe 74 can directly blow into the groove of the lower mold 3 after the sliding column 72 rises, ensuring the spraying effect.
[0024] Reference Figure 6 The blocking component 77 includes a sliding groove 771, a pin 772, a spring 773, and a connecting groove 774. The sliding groove 771 is formed on both sides of the lower mold 3. The pin 772 is slidably connected to the sliding groove 771. The spring 773 is fixedly connected between the pin 772 and the sliding groove 771. The outer end of the pin 772 is inclined. The connecting groove 774 is formed on the sliding column 72. The shape of the connecting groove 774 matches the shape of the end of the pin 772. After the gas pushes the sliding column 72 to rise, the connecting groove 774 on the sliding column 72 will reach the position of the pin 772. The pin 772 will be inserted into the connecting groove 774, thereby limiting the rise of the sliding column 72.
[0025] Reference Figure 6 and Figure 7The top surface of the pin 772 is flat, and the jet pipe 74 extends into a sliding post 72. When the bottom of the sliding post 72 is at the bottom of the telescopic groove 71, the pin 772 is located near the bottom of the jet pipe 74. As the sliding post 72 begins to rise under the push of the airflow, the airflow from the jet pipe 74 blows towards the top of the pin 772. The pin 772 can support the airflow, and the reaction force of the airflow can assist the rise of the sliding post 72.
[0026] Reference Figure 8 The lifting assembly 8 includes a slide groove 81, a support plate 82, and a buffer pad 83. The slide groove 81 is fixedly connected to the outside of the lower mold 3, the support plate 82 is slidably connected to the slide groove 81, and the buffer pad 83 is fixedly connected to the top surface of the support plate 82. The buffer pad 83 is made of rubber. When bending long sheet metal, the movable lifting assembly 8 can lift the sheet metal to keep it parallel and in contact with the top of the lower mold 3, thereby improving the stability of the sheet metal and preventing deviation during bending. When lifting is not required, the lifting assembly 8 can be removed.
[0027] Reference Figure 8 The tray 82 is also embedded with multiple sets of adsorption ports 821. The adsorption ports 821 are flush with the top surface of the tray 82. The bottom of the adsorption ports 821 is connected to the air pipe, and the air pipe is connected to the air pump 76. After the board is placed on the push plate, the air pump 76 will start the suction mode to generate negative pressure at the adsorption ports 821 to adsorb the board, which further improves the stability of the board.
[0028] The working principle of this invention is as follows: During the bending process of the sheet metal, the CNC sliding frame 4 can automatically adjust its position. Then, the manual operation places one end of the sheet metal on the edge of the stop block 5 to be blocked, thereby determining the bending position. Then, the upper die 2 can be started to descend and bend the sheet metal. When bending a long sheet metal, the movable lifting component 8 can be used to lift the sheet metal, keeping the sheet metal parallel and in contact with the top of the lower die 3. After the sheet metal is placed on the push plate, the air pump 76 will start the suction mode to generate negative pressure at the suction port 821 to adsorb the sheet metal, which further improves the stability of the sheet metal and prevents deviation during the bending process. When the lifting is not needed, the lifting component 8 can be removed. During the process of bending the sheet metal on the lower die 3 by the descent of the upper die 2, the stabilizing block 61 can clamp and stabilize both sides of the lower die 3 to prevent deformation of both sides of the lower die 3 due to the squeezing of the upper die 2 on the lower die 3 under long-term operation. When the upper die 2 squeezes to the bottom of the groove of the lower die 3, it will apply downward pressure to the groove push block 63, thereby pushing the groove push block 63 to move down and push the push block 64 to extend to both sides of the lower die 3. This pushes the bottom of the stabilizing block 61 outward, and pushes the upper part of the stabilizing block 61 inward along the crossbar 62, thereby strengthening the stabilizing effect of the stabilizing block 61 on the lower die 3. When the upper die 2 bends and rises the sheet metal on the lower die 3, the air pump 76 will immediately start pumping air, quickly pumping air into the telescopic groove 71, which in turn pushes the sliding column 72 to rise and lift the sheet metal. This prevents the sheet metal from contacting the lower die 3 and causing scratches during manual turning of the sheet metal. At the same time, as the air is pumped into the telescopic groove 71 and pushes the sliding column 72 to rise, a small portion of the air will be discharged along the narrow airflow channel 73, thus forming a high-pressure airflow. After the sliding column 72 rises, it cleans the groove of the lower die 3 to prevent the accumulation of impurities from affecting the bending quality.
[0029] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An intelligent positioning CNC bending machine, characterized in that: The CNC bending equipment includes a machine tool (1), an upper die (2), a lower die (3), a CNC sliding frame (4), a stop block (5), a stabilizing component (6), an anti-scratch component (7), and a lifting component (8). The upper die (2) is slidably connected to the machine tool (1) and the lower die (3) is fixedly connected to the machine tool (1). The CNC sliding frame (4) is slidably connected to the machine tool (1). The stop block (5) is slidably connected to the CNC sliding frame (4). The stabilizing component (6) is located on both sides of the lower die (3). The anti-scratch component (7) is slidably connected to the stabilizing component (6). The lifting component (8) is slidably connected to the outside of the lower die (3). After the upper die (2) rises, the anti-scratch component (7) rises and blows air into the groove of the lower die (3). During the bending process of the upper die (2) descending, the lifting component (8) adsorbs and fixes the plate, while the stabilizing component (6) tightens the top of the lower die (3).
2. The intelligent positioning CNC bending equipment according to claim 1, characterized in that: The stabilizing component (6) includes a stabilizing block (61), a crossbar (62), a grooved pusher block (63), and a pushing block (64). The stabilizing block (61) is close to both sides of the lower mold (3). The crossbar (62) passes through the lower mold (3) and is fixedly connected between the stabilizing blocks (61) on both sides of the lower mold (3). The grooved pusher block (63) is slidably connected to the lower mold (3). The pushing block (64) is slidably connected to the lower mold (3). The pushing block (64) is located below the crossbar (62), and the outer end of the pushing block (64) abuts against the stabilizing block (61). The inner end of the pushing block (64) is obliquely cut. The bottom of the grooved pusher block (63) abuts against the obliquely cut part of the inner end of the pushing block (64).
3. The intelligent positioning CNC bending equipment according to claim 2, characterized in that: The anti-scratch assembly (7) includes a telescopic groove (71), a sliding column (72), an airflow channel (73), a jet pipe (74), a connecting pipe (75), an air pump (76), and a stopper (77); the telescopic groove (71) is opened on the stabilizing block (61), the sliding column (72) is slidably connected to the telescopic groove (71), the top of the sliding column (72) is provided with a soft pad, the airflow channel (73) is opened inside the sliding column (72), the jet pipe (74) is opened near the top of the sliding column (72) and is connected to the top of the airflow channel (73), the connecting pipe (75) is connected to the bottom of the telescopic groove (71) on each set of stabilizing blocks (61), the air pump (76) is fixedly connected to the machine tool (1), and the connecting pipe (75) and the air pump (76) are connected through an air pipe, and the stopper (77) is slidably connected to the lower mold (3).
4. The intelligent positioning CNC bending equipment according to claim 3, characterized in that: The jet pipe (74) extends outward from the airflow channel (73) and is inclined downward, with the jet pipe (74) facing the groove of the lower mold (3).
5. The intelligent positioning CNC bending equipment according to claim 4, characterized in that: The blocking component (77) includes a sliding groove (771), a pin (772), a spring (773), and a connecting groove (774); the sliding groove (771) is opened on both sides of the lower mold (3), the pin (772) is slidably connected to the sliding groove (771), the spring (773) is fixedly connected between the pin (772) and the sliding groove (771), the outer end of the pin (772) is inclined, and the connecting groove (774) is opened on the sliding post (72), the shape of the connecting groove (774) matches the shape of the end of the pin (772).
6. The intelligent positioning CNC bending equipment according to claim 5, characterized in that: The top surface of the pin (772) is flat, the jet pipe (74) extends out of the sliding post (72), and the pin (772) is located near the bottom of the jet pipe (74) when the bottom of the sliding post (72) is at the bottom of the telescopic groove (71).
7. The intelligent positioning CNC bending machine according to claim 6, characterized in that: The lifting assembly (8) includes a slide (81), a support plate (82), and a buffer pad (83); the slide (81) is fixedly connected to the outside of the lower mold (3), the support plate (82) is slidably connected to the slide (81), and the buffer pad (83) is fixedly connected to the top surface of the support plate (82).
8. The intelligent positioning CNC bending equipment according to claim 7, characterized in that: The tray (82) is also inlaid with a number of adsorption ports (821). The adsorption ports (821) are flush with the top surface of the tray (82). The bottom of the adsorption ports (821) is connected to the air pipe, and the air pipe is connected to the air pump (76).