Plate punching equipment for mechanical engineering

Abstract

The plate punching equipment for mechanical engineering relates to the technical field of plate punching and comprises a machining table, a supporting frame is fixedly mounted at the top of the machining table, a carrying plate is fixedly mounted on the inner wall of the supporting frame, a hydraulic rod fixedly penetrates through the top of the supporting frame, and a punching head is fixedly mounted at the output end of the hydraulic rod. A connecting plate is fixedly mounted on the circumferential surface of the hydraulic rod, a limiting groove is formed in the surface of the carrying plate, and a loading and unloading device is further included; wherein the loading and unloading device comprises a placing plate, a receiving plate, a sliding block, a first spring, a holding rod, a limiting plate, a connecting plate, a T-shaped rod, a second spring and a pressing plate, a punching head and the pressing plate synchronously move, so that clamping borne by a plate is rapidly relieved after punching is completed, the continuous operation efficiency is effectively improved, waste is collected through the receiving plate, and the labor intensity of workers is reduced. And subsequent unified recovery treatment is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of plate punching, in particular to a plate punching device for mechanical engineering. Background Art

[0002] Sheet metal punching equipment is a mechanical device used to process metal sheets. It mainly uses punching tools to punch, cut or shape the sheets. Sheet metal punching equipment is widely used in metal processing, construction, automobiles, electronics, home appliances and other industries to produce various products or parts with holes.

[0003] The patent with patent announcement number CN209969325U relates to a sheet metal punching equipment for mechanical engineering, including a punching box, a hydraulic rod is provided on the top inner wall of the punching box, and a connecting plate is fixed on the bottom outer wall of the hydraulic rod, punching heads are provided on both sides of the bottom outer wall of the connecting plate, a lamp holder is provided on the top inner wall of the punching box, and a lighting lamp is clamped on the inner wall of the lamp holder through a clamp, an electric slide rail is provided on the inner wall of the punching box, and a slider is slidably connected to the inner wall of the electric slide rail, a connecting cylinder is provided on the top outer wall of the slider, and a shock absorbing mechanism is provided on the bottom inner wall of the connecting cylinder. The patent provides two punching heads, which can punch two sheets of metal at the same time, speed up the punching speed of the sheets, and effectively improve the punching efficiency of the sheets. By providing a shock absorbing spring and a shock absorbing pad, the shaking of the sheets can be effectively reduced when the punching head processes the sheets, thereby improving the punching quality of the sheets.

[0004] The above patent has the function of reducing the shaking of the plate. By setting shock-absorbing springs and shock-absorbing pads, the punching quality of the plate is effectively improved. However, waste will be generated during the punching process. These wastes will fall into the processing area, causing additional recycling and processing work for the operator. More importantly, the operator's hands need to be close to the processing area for waste recycling, which increases potential safety risks. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a plate punching device for mechanical engineering, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a plate punching equipment for mechanical engineering, comprising a processing table, a support frame is fixedly installed on the top of the processing table, a carrying plate is fixedly installed on the inner wall of the support frame, a hydraulic rod is fixedly passed through the top of the support frame, a punching head is fixedly installed on the output end of the hydraulic rod, a connecting plate is fixedly installed on the circumferential surface of the hydraulic rod, a limiting groove is provided on the surface of the carrying plate, and also includes a loading and unloading device; wherein, the loading and unloading device includes a placing plate, a receiving plate, a slider, a No. 1 spring, a gripping rod, a limiting plate, a connecting plate, a T-shaped rod, a No. 2 spring, and a pressure plate, and the gripping rod is held with both hands and moved in a direction away from the carrying plate, and the gripping rod moves with The dynamic limit plate moves in the direction away from the carrying plate, the placing plate is slidably installed on the surface of the carrying plate, the receiving plate is fixedly installed on the bottom of the placing plate, the slider slides through the inner and outer walls of the placing plate, the No. 1 spring is arranged between the slider and the placing plate, the gripping rod is fixedly installed on the side of the slider away from the placing plate, the limit plate is fixedly installed on the circumferential surface of the gripping rod, the connecting plate is fixedly installed on the top of the placing plate, the T-shaped rod slides through the top of the connecting plate, the No. 2 spring is arranged between the T-shaped rod and the connecting plate, the pressure plate is fixedly installed on the bottom of the T-shaped rod, the movement of the connecting plate drives the T-shaped rod to move toward the punching head, and the movement of the T-shaped rod drives the pressure plate to move toward the punching head.

[0007] According to the above technical solution, the pressing plate is symmetrically arranged with respect to the vertical center line of the placement plate, the pressing plate itself is elastic, a corrugation 1 is provided at the bottom of the pressing plate, the corrugation 1 of the pressing plate contacts the top of the plate during movement, so that the pressing plate applies downward pressure to the plate, and an anti-slip groove is provided on a side of the receiving plate close to the placement plate.

[0008] According to the above technical solution, the size of the limit plate is adapted to the limit groove, the side of the limit plate close to the slider is in contact with the mounting plate, and the side of the limit plate away from the grip rod is provided with an arc surface 1, and the arc surface 1 of the limit plate is in contact with the inner wall of the limit groove during movement, so that the support frame imposes a limit on the placement plate.

[0009] According to the above technical scheme, it also includes a pushing device and a locking device; the pushing device includes a loading plate, a telescopic rod, a contact plate, a No. 3 spring, a cylindrical rod, a rectangular block, a rubber block and an E-shaped plate. The contact plate squeezes the No. 3 spring during movement, and the No. 3 spring is deformed by the squeezing. The loading plate is fixedly mounted on the surface of the support frame, the telescopic rod slides through the inner and outer walls of the loading plate, the contact plate is fixedly mounted on a side of the telescopic rod close to the connecting plate, the No. 3 spring is arranged between the contact plate and the loading plate, the cylindrical rod is fixedly mounted on a side of the contact plate close to the support frame, the rectangular block is fixedly mounted on the circumferential surface of the telescopic rod, the rubber block is fixedly mounted on the surface of the rectangular block, the E-shaped plate is fixedly mounted on a side of the loading plate close to the rubber block, and a rectangular groove is provided on a side of the contact plate away from the telescopic rod. The connecting plate contacts the rectangular groove of the contact plate during movement, so that the movement of the connecting plate drives the contact plate to move toward the loading plate.

[0010] According to the above technical solution, a slide groove is provided on one side of the support frame close to the cylindrical rod, and the circumferential surface of the cylindrical rod contacts the inner wall of the slide groove. The cylindrical rod is supported by the slide groove during movement, so that the contact plate can move more smoothly.

[0011] According to the above technical solution, a second corrugation is provided on one side of the rubber block close to the E-shaped plate, and the second corrugation contacts the surface of the E-shaped plate. The second corrugation generates intermittent friction with the E-shaped plate during movement, and the rubber block exerts intermittent resistance on the rectangular block under the influence of the friction force.

[0012] According to the above technical scheme, the locking device includes a fixed frame, a connecting rod, a sliding rod, a No. 4 spring, a blocking block, a rotating rod, a Z-shaped plate and a limiting plate. The sliding rod squeezes the No. 4 spring during movement, and the No. 4 spring is deformed due to the squeezing. The fixed frame is fixedly installed on a side of the support frame close to the loading plate, the connecting rod slides through the inner and outer walls of the fixed frame, the sliding rod slides through the side of the connecting rod close to the support frame, the No. 4 spring is arranged between the sliding rod and the connecting rod, the blocking block is fixedly installed on a side of the sliding rod close to the support frame, the rotating rod is rotatably installed on a side of the connecting rod away from the blocking block, the Z-shaped plate is fixedly installed on the circumferential surface of the rotating rod, the limiting plate is fixedly installed on a side of the fixed frame close to the Z-shaped plate, and a side of the blocking block close to the loading plate is provided with an arc surface 2, the inclined surface 1 of the rectangular block contacts the arc surface 2 of the blocking block, the inclined surface 1 moves to squeeze the arc surface 2, and the blocking block is squeezed and moved.

[0013] According to the above technical solution, a spiral spring is arranged between the rotating rod and the connecting rod. The rotating rod stretches the spiral spring during rotation, and the spiral spring is deformed due to the stretching. A groove is opened on the side of the limiting plate close to the Z-shaped plate, and the Z-shaped plate contacts the surface of the limiting plate.

[0014] The present invention provides a plate punching device for mechanical engineering, which has the following beneficial effects: (1) In the sheet metal punching equipment for mechanical engineering, the limit plate contacts the limit groove during movement, so that the support frame applies a limit to the placement plate. The sheet metal can be quickly delivered to the processing area through simple operation. Under the action of the limit plate, the placement plate can maintain a stable position during the processing, thereby effectively improving the stability and accuracy of sheet metal processing. At the same time, the pressing plate moves and contacts the sheet metal, so that the pressing plate applies downward pressure to the sheet metal. The punching head and the pressing plate move synchronously, so that the clamping of the sheet metal is quickly released after the punching is completed, reducing the time of manual intervention and effectively improving the efficiency of continuous operation. The receiving plate collects the waste materials for subsequent unified recycling and treatment.

[0015] (2) In the sheet metal punching equipment for mechanical engineering, the contact plate applies a thrust to the connecting plate, so that the contact plate drives the connecting plate to move. By applying a thrust to the connecting plate by the contact plate, the placement plate can automatically move to a safe area after the limit is released, which helps to improve the overall efficiency of unloading and reduce the number of times the operator's hands approach the processing area. At the same time, the rubber block applies intermittent resistance to the rectangular block. Through the intermittent contact between the rubber block and the E-shaped plate, the movement speed of the telescopic rod can be effectively slowed down, thereby preventing the contact plate from accidentally colliding during the pushing process.

[0016] (3) In the sheet metal punching equipment for mechanical engineering, the blocking block moves and contacts with the rectangular block, so that the blocking block imposes a limit on the rectangular block. By limiting the rectangular block moved to the specified position by the blocking block, it can prevent the operator from ignoring the movement of the contact plate due to lack of concentration during the first use, thereby improving the standardization of the operation. At the same time, the Z-shaped plate contacts with the card slot, so that the limiting plate imposes a limit on the rotating rod. The position of the blocking block can be quickly adjusted through standardized operation, which is convenient for the operator to quickly enable the contact plate to work. At the same time, it also enhances the applicability of the blocking block under different working environments and operating requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the position structure of the support frame and the mounting plate of the present invention; Figure 3 This is a schematic diagram of the position structure of the punching head and the connecting plate of the present invention; Figure 4 This is a schematic diagram of the internal structure of the loading and unloading device of the present invention; Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 6 It is a schematic diagram of the internal structure of the pushing device and the locking device of the present invention; Figure 7 It is a schematic diagram of the position structure of the connecting rod and the sliding rod of the present invention.

[0018] In the figure: 1. processing table; 2. support frame; 3. carrying plate; 4. hydraulic rod; 5. punching head; 6. connecting plate; 7. placing plate; 8. receiving plate; 9. sliding block; 10. spring No. 1; 11. gripping rod; 12. limiting plate; 13. connecting plate; 14. T-shaped rod; 15. spring No. 2; 16. pressing plate; 171. loading plate; 172. telescopic rod; 173. contact plate; 174. spring No. 3; 175. cylindrical rod; 176. rectangular block; 177. rubber block; 178. E-shaped plate; 181. fixing frame; 182. connecting rod; 183. sliding rod; 184. spring No. 4; 185. blocking block; 186. rotating rod; 187. Z-shaped plate; 188. limiting plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 7 , one embodiment of the present invention is: a plate punching device for mechanical engineering, comprising a processing table 1, a support frame 2 is fixedly installed on the top of the processing table 1, a carrying plate 3 is fixedly installed on the inner wall of the support frame 2, a hydraulic rod 4 is fixedly penetrated on the top of the support frame 2, a punching head 5 is fixedly installed on the output end of the hydraulic rod 4, a connecting plate 6 is fixedly installed on the circumferential surface of the hydraulic rod 4, a limiting groove is provided on the surface of the carrying plate 3, and a loading and unloading device is also included; wherein the loading and unloading device includes a placing plate 7, a receiving plate 8, a slider 9, a No. 1 spring 10, a grip rod 11, a limiting plate 12, a connecting plate 13, a T-shaped rod 14, a No. 2 spring 15, and a pressing plate 16, and the placing plate 7 is slidably mounted on The surface of the carrying plate 3, the receiving plate 8 is fixedly installed at the bottom of the placing plate 7, the slider 9 slides through the inner and outer walls of the placing plate 7, the No. 1 spring 10 is arranged between the slider 9 and the placing plate 7, the gripping rod 11 is fixedly installed on the side of the slider 9 away from the placing plate 7, the limit plate 12 is fixedly installed on the circumferential surface of the gripping rod 11, the connecting plate 13 is fixedly installed on the top of the placing plate 7, the T-shaped rod 14 slides through the top of the connecting plate 13, the No. 2 spring 15 is arranged between the T-shaped rod 14 and the connecting plate 13, and the pressure plate 16 is fixedly installed at the bottom of the T-shaped rod 14. The plate can be quickly delivered to the processing area through simple operation, which effectively improves the stability and accuracy of plate processing.

[0021] The pressing plate 16 is symmetrically arranged with respect to the vertical center line of the placing plate 7. The pressing plate 16 itself is elastic. A corrugation is provided at the bottom of the pressing plate 16. An anti-slip groove is provided on one side of the receiving plate 8 close to the placing plate 7. The punching head 5 moves synchronously with the pressing plate 16, so that the clamping of the plate is quickly released after the punching is completed, thereby effectively improving the efficiency of continuous operation.

[0022] The size of the limit plate 12 is adapted to the limit groove. The side of the limit plate 12 close to the slider 9 is in contact with the mounting plate 3. The side of the limit plate 12 away from the gripping rod 11 is provided with an arc surface. The limit plate 12 is in contact with the limit groove, so that the placement plate 7 can maintain a stable position during the processing.

[0023] When the present embodiment is working, the sheet is placed on the top of the placing plate 7, and the outer wall of the sheet contacts the inner wall of the placing plate 7 during movement, so that the placing plate 7 can effectively control the sheet. Then the operator holds the gripping rod 11 with both hands and moves in the direction away from the mounting plate 3. The movement of the gripping rod 11 drives the limiting plate 12 to move in the direction away from the mounting plate 3. The surface of the limiting plate 12 in contact with the mounting plate 3 is separated during the movement. At the same time, the movement of the gripping rod 11 drives the slider 9 to move in the direction away from the mounting plate 3. The slider 9 squeezes the No. 1 spring 10 during the movement. The No. 1 spring 10 is squeezed and deformed. When the slider 9 moves to the specified position, the gripping rod 11 is pushed to move in the direction of the punching head 5. The movement of the gripping rod 11 drives the limiting plate 12 and the slider 9 to move in the direction of the punching head 5. The slider 9 The movement drives the placing plate 7 to move toward the punching head 5, and the movement of the placing plate 7 drives the plate to move toward the punching head 5. At the same time, the movement of the placing plate 7 drives the connecting plate 13 to move toward the punching head 5. The movement of the connecting plate 13 drives the T-shaped rod 14 to move toward the punching head 5. The movement of the T-shaped rod 14 drives the pressing plate 16 to move toward the punching head 5. When the placing plate 7 moves to the specified position, the placing plate 7 is blocked by the carrying plate 3 and stops moving. The grip rod 11 is released, and the deformed No. 1 spring 10 recovers and drives the slider 9 to move toward the support frame 2. The movement of the slider 9 drives the grip rod 11 to move toward the support frame 2. The movement of the grip rod 11 drives the limit plate 12 to move toward the support frame 2. The arc surface of the limit plate 12 contacts the inner wall of the limit groove during movement, so that the support frame 2 is close to the placing plate 7. The placement plate 7 is limited, and the plate is quickly sent to the processing area through simple operation. Under the action of the limit plate 12, the placement plate 7 can maintain a stable position during the processing, thereby effectively improving the stability and accuracy of the plate processing. Then the hydraulic rod 4 is started, and the output end of the hydraulic rod 4 drives the punching head 5 to move downward. At the same time, the output end of the hydraulic rod 4 drives the connecting plate 6 to move downward together. The bottom of the connecting plate 6 contacts the top of the T-shaped rod 14 during the movement, so that the connection plate 6 moves and drives the T-shaped rod 14 to move downward. The T-shaped rod 14 squeezes the No. 2 spring 15 during the movement. The No. 2 spring 15 is squeezed and deformed. At the same time, the T-shaped rod 14 moves and drives the pressing plate 16 to move downward. The corrugation of the pressing plate 16 contacts the top of the plate during the movement. The pressing plate 16 applies downward pressure to the sheet, while the punching head 5 continues to move to punch the sheet. The waste generated during the punching process is separated from the sheet. The separated waste moves downward and contacts the anti-slip groove of the receiving plate 8, so that the receiving plate 8 can effectively collect the waste. After the punching is completed, the output end of the hydraulic rod 4 is reset to drive the punching head 5 to move upward. At the same time, the output end of the hydraulic rod 4 drives the connecting plate 6 to move upward. The connecting plate 6 gradually reduces the pressure applied to the T-bar 14 during the movement, so that the deformed No. 2 spring 15 is restored to drive the T-bar 14 to move upward. The movement of the T-bar 14 drives the pressing plate 16 to move upward. The pressing plate 16 is separated from the sheet during the movement. The operator repeats the above operation to move the placement plate 7 to the initial position and take out the sheet and the waste.The punching head 5 and the pressing plate 16 move synchronously, so that the clamping of the plate is quickly released after the punching is completed, which reduces the time of manual intervention and effectively improves the efficiency of continuous operation. The receiving plate 8 collects the waste materials for subsequent unified recycling.

[0024] See also Figure 1-Figure 7 On the basis of the above embodiment, another embodiment of the present invention further includes a pushing device and a locking device; the pushing device includes a loading plate 171, a telescopic rod 172, a contact plate 173, a third spring 174, a cylindrical rod 175, a rectangular block 176, a rubber block 177 and an E-shaped plate 178, the loading plate 171 is fixedly mounted on the surface of the support frame 2, the telescopic rod 172 slides through the inner and outer walls of the loading plate 171, the contact plate 173 is fixedly mounted on a side of the telescopic rod 172 close to the connecting plate 13, and the third spring 174 is arranged between the contact plate 173 and the loading plate Between the carrier plates 171, the cylindrical rod 175 is fixedly mounted on the side of the contact plate 173 close to the support frame 2, the rectangular block 176 is fixedly mounted on the circumferential surface of the telescopic rod 172, the rubber block 177 is fixedly mounted on the surface of the rectangular block 176, and the E-shaped plate 178 is fixedly mounted on the side of the loading plate 171 close to the rubber block 177. A rectangular groove is provided on the side of the contact plate 173 away from the telescopic rod 172. The contact plate 173 applies a thrust to the connecting plate 13, so that the placement plate 7 can automatically move to a safe area after the limit is released, which helps to improve the overall efficiency of unloading.

[0025] A slide groove is provided on one side of the support frame 2 close to the cylindrical rod 175, and the circumferential surface of the cylindrical rod 175 contacts the inner wall of the slide groove. The support provided by the slide groove effectively improves the stability during the punching operation, thereby improving the accuracy of the plate punching.

[0026] A second corrugation is provided on one side of the rubber block 177 close to the E-shaped plate 178, and the second corrugation contacts the surface of the E-shaped plate 178. The intermittent contact between the rubber block 177 and the E-shaped plate 178 can effectively slow down the movement speed of the telescopic rod 172, thereby preventing the contact plate 173 from accidentally colliding during the pushing process.

[0027] The locking device includes a fixed frame 181, a connecting rod 182, a sliding rod 183, a fourth spring 184, a blocking block 185, a rotating rod 186, a Z-shaped plate 187 and a limiting plate 188. The fixed frame 181 is fixedly mounted on a side of the support frame 2 close to the loading plate 171, the connecting rod 182 slides through the inner and outer walls of the fixed frame 181, the sliding rod 183 slides through the side of the connecting rod 182 close to the support frame 2, and the fourth spring 184 is arranged between the sliding rod 183 and the connecting rod 182 to block the locking device. Block 185 is fixedly mounted on a side of the sliding rod 183 close to the support frame 2, the rotating rod 186 is rotatably mounted on a side of the connecting rod 182 away from the blocking block 185, the Z-shaped plate 187 is fixedly mounted on the circumferential surface of the rotating rod 186, the limiting plate 188 is fixedly mounted on a side of the fixed frame 181 close to the Z-shaped plate 187, and the blocking block 185 is provided with an arc surface 2 on a side close to the loading plate 171. The blocking block 185 is used to limit the rectangular block 176 moved to the specified position, thereby effectively improving the standardization of the operation.

[0028] A spiral spring is arranged between the rotating rod 186 and the connecting rod 182. A slot is provided on a side of the limiting plate 188 close to the Z-shaped plate 187. The Z-shaped plate 187 contacts the surface of the limiting plate 188. The position of the blocking block 185 can be quickly adjusted through standard operation, which is convenient for the operator to quickly enable the contact plate 173 to work.

[0029] When the present embodiment is working, the connecting plate 13 contacts with the rectangular groove of the contact plate 173 during movement, so that the connecting plate 13 moves and drives the contact plate 173 to move toward the loading plate 171. The contact plate 173 squeezes the No. 3 spring 174 during movement, and the No. 3 spring 174 is squeezed and deformed. At the same time, the contact plate 173 moves and drives the cylindrical rod 175 to move toward the loading plate 171. The cylindrical rod 175 is supported by the slide groove during movement, so that the contact plate 173 can move more smoothly. The movement of the contact plate 173 drives the telescopic rod 172 to move toward the loading plate 171. The telescopic rod 172 stops moving after moving to the specified position. When the punching is completed After that, the operator releases the limit of the placement plate 7 in a standardized manner, so that the deformed No. 3 spring 174 recovers and drives the contact plate 173 to move rapidly in the direction away from the loading plate 171. The movement of the contact plate 173 drives the telescopic rod 172 and the cylindrical rod 175 to move rapidly in the direction away from the loading plate 171. At the same time, the contact plate 173 applies a thrust to the connecting plate 13 during the movement, so that the movement of the contact plate 173 drives the connecting plate 13 to move in the direction away from the punching head 5. The contact plate 173 applies a thrust to the connecting plate 13, so that the placement plate 7 can automatically move to a safe area after the limit is released, which helps to improve the overall efficiency of unloading and reduce the operator's hand The number of times the telescopic rod 172 approaches the processing area, the movement of the telescopic rod 172 drives the rectangular block 176 to move away from the connecting plate 13, the movement of the rectangular block 176 drives the rubber block 177 to move away from the connecting plate 13, and the second corrugation of the rubber block 177 separates from the surface in contact with the E-shaped plate 178 during the movement, so that the deformed rubber block 177 recovers under the action of its own elasticity. When the telescopic rod 172 moves rapidly toward the connecting plate 13, the movement of the telescopic rod 172 drives the rectangular block 176 to move toward the connecting plate 13, the movement of the rectangular block 176 drives the rubber block 177 to move toward the connecting plate 13, and the second corrugation of the rubber block 177 separates from the surface in contact with the E-shaped plate 178 during the movement. Intermittent contact is performed. During the intermittent contact, the E-shaped plate 178 applies resistance to the moving rubber block 177, so that the rubber block 177 continues to move and is deformed under the influence of the resistance. The deformed rubber block 177 is in closer contact with the E-shaped plate 178, so that the corrugation 2 generates intermittent friction with the E-shaped plate 178 during movement. The rubber block 177 is affected by the friction force and applies intermittent resistance to the rectangular block 176, thereby effectively slowing down the moving speed of the telescopic rod 172. The intermittent contact between the rubber block 177 and the E-shaped plate 178 can effectively slow down the moving speed of the telescopic rod 172, thereby preventing the contact plate 173 from accidentally colliding during the pushing process. When the rectangular block 176 moves for the first time, the inclined surface 1 of the rectangular block 176 contacts the arc surface 2 of the blocking block 185, and the inclined surface 1 moves to squeeze the arc surface 2, and the blocking block 185 is squeezed to move in the direction of the connecting rod 182. The movement of the blocking block 185 drives the sliding rod 183 to move in the direction of the connecting rod 182. The sliding rod 183 squeezes the No. 4 spring 184 during the movement, and the No. 4 spring 184 is squeezed and deformed. The rectangular block 176 continues to move and separates from the arc surface 2, so that the deformed No. 4 spring 184 recovers and drives the sliding rod 183 to move in the direction away from the connecting rod 182. The movement of the sliding rod 183 drives the blocking block 185 in the direction away from the connecting rod 182 The plane of the blocking block 185 contacts the plane of the rectangular block 176 during the movement, so that the blocking block 185 imposes a limit on the rectangular block 176. When the operator releases the limit imposed on the placement plate 7, the contact plate 173 will not push the connection plate 13 to move. The blocking block 185 imposes a limit on the rectangular block 176 moved to the specified position, which can prevent the operator from ignoring the movement of the contact plate 173 due to lack of concentration during the first use, thereby improving the standardization of the operation. When the contact plate 173 needs to be used, the rotating rod 186 is manually rotated. The rotating rod 186 stretches the volute spring during the rotation, and the volute spring is stretched and deformed. At the same time, the rotating rod 1 The rotation of the Z-shaped plate 187 drives the Z-shaped plate 187 to rotate in the direction away from the limiting plate 188. The surface of the Z-shaped plate 187 that contacts the limiting plate 188 during the rotation separates, and then the rotating rod 186 is pulled to move in the direction away from the fixed frame 181. The movement of the rotating rod 186 drives the Z-shaped plate 187 to move in the direction away from the fixed frame 181. At the same time, the movement of the rotating rod 186 drives the connecting rod 182 to move in the direction away from the fixed frame 181. The movement of the connecting rod 182 drives the sliding rod 183 to move in the direction away from the fixed frame 181. The movement of the sliding rod 183 drives the blocking block 185 to move in the direction away from the fixed frame 181. The blocking block 185 contacts the rectangular block 185 during the movement. The contact surfaces 176 are separated, so that the limit imposed by the blocking block 185 on the rectangular block 176 is released. When the rotating rod 186 moves to the specified position, the rotating rod 186 is released, and the deformed scroll spring recovers and drives the rotating rod 186 to reset. The reset of the rotating rod 186 drives the Z-shaped plate 187 to rotate in the direction of the limiting plate 188. The Z-shaped plate 187 contacts the inner wall of the slot during rotation, so that the limiting plate 188 imposes a limit on the rotating rod 186. The position of the blocking block 185 can be quickly adjusted through standardized operations, which is convenient for the operator to quickly enable the contact plate 173 to work. At the same time, it also enhances the applicability of the blocking block 185 in different working environments and operating requirements.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal punching device for mechanical engineering, comprising a processing table (1), characterized in that: A support frame (2) is fixedly mounted on the top of the processing table (1), a carrying plate (3) is fixedly mounted on the inner wall of the support frame (2), a hydraulic rod (4) is fixedly penetrated through the top of the support frame (2), a punching head (5) is fixedly mounted on the output end of the hydraulic rod (4), a connecting plate (6) is fixedly mounted on the circumferential surface of the hydraulic rod (4), a limiting groove is provided on the surface of the carrying plate (3), and the carrying plate (3) also includes a loading and unloading device, a pushing device and a locking device; The loading and unloading device comprises a placing plate (7), a receiving plate (8), a slider (9), a first spring (10), a gripping rod (11), a limiting plate (12), a connecting plate (13), a T-shaped rod (14), a second spring (15), and a pressing plate (16); the placing plate (7) is slidably mounted on the surface of the carrying plate (3); the receiving plate (8) is fixedly mounted on the bottom of the placing plate (7); the slider (9) slides through the inner and outer walls of the placing plate (7); the first spring (10) is arranged on the slider (9) and the placement plate (7), the gripping rod (11) is fixedly mounted on a side of the slider (9) away from the placement plate (7), the limiting plate (12) is fixedly mounted on the circumferential surface of the gripping rod (11), the connecting plate (13) is fixedly mounted on the top of the placement plate (7), the T-shaped rod (14) slides through the top of the connecting plate (13), the second spring (15) is arranged between the T-shaped rod (14) and the connecting plate (13), and the pressure plate (16) is fixedly mounted on the bottom of the T-shaped rod (14).

2. A sheet metal punching device for mechanical engineering according to claim 1, characterized in that: The pressing plate (16) is symmetrically arranged with respect to the vertical center line of the placement plate (7); the pressing plate (16) itself is elastic; a corrugation is provided at the bottom of the pressing plate (16); and an anti-slip groove is provided on a side of the receiving plate (8) close to the placement plate (7).

3. A sheet metal punching device for mechanical engineering according to claim 2, characterized in that: The size of the limit plate (12) is matched with the limit groove, a side of the limit plate (12) close to the slider (9) is in contact with the mounting plate (3), and a side of the limit plate (12) away from the gripping rod (11) is provided with an arc surface.

4. A sheet metal punching device for mechanical engineering according to claim 3, characterized in that: The pushing device comprises a loading plate (171), a telescopic rod (172), a contact plate (173), a third spring (174), a cylindrical rod (175), a rectangular block (176), a rubber block (177) and an E-shaped plate (178), wherein the loading plate (171) is fixedly mounted on the surface of the support frame (2), the telescopic rod (172) slides through the inner and outer walls of the loading plate (171), the contact plate (173) is fixedly mounted on a side of the telescopic rod (172) close to the connecting plate (13), the third spring (174) ) is arranged between the contact plate (173) and the loading plate (171), the cylindrical rod (175) is fixedly mounted on a side of the contact plate (173) close to the support frame (2), the rectangular block (176) is fixedly mounted on the circumferential surface of the telescopic rod (172), the rubber block (177) is fixedly mounted on the surface of the rectangular block (176), the E-shaped plate (178) is fixedly mounted on a side of the loading plate (171) close to the rubber block (177), and a rectangular groove is provided on a side of the contact plate (173) away from the telescopic rod (172).

5. A sheet metal punching device for mechanical engineering according to claim 4, characterized in that: A sliding groove is provided on a surface of the support frame (2) close to the cylindrical rod (175), and the circumferential surface of the cylindrical rod (175) contacts the inner wall of the sliding groove.

6. The sheet metal punching device for mechanical engineering according to claim 5, characterized in that: A second corrugation is formed on a surface of the rubber block (177) close to the E-shaped plate (178), and the second corrugation is in contact with the surface of the E-shaped plate (178).

7. A sheet metal punching device for mechanical engineering according to claim 6, characterized in that: The locking device comprises a fixed frame (181), a connecting rod (182), a sliding rod (183), a No. 4 spring (184), a blocking block (185), a rotating rod (186), a Z-shaped plate (187) and a limiting plate (188); the fixed frame (181) is fixedly mounted on a side of the support frame (2) close to the loading plate (171); the connecting rod (182) slides through the inner and outer walls of the fixed frame (181); the sliding rod (183) slides through the side of the connecting rod (182) close to the support frame (2); the No. 4 spring (184) The blocking block (185) is arranged between the sliding rod (183) and the connecting rod (182), the blocking block (185) is fixedly mounted on a side of the sliding rod (183) close to the support frame (2), the rotating rod (186) is rotatably mounted on a side of the connecting rod (182) away from the blocking block (185), the Z-shaped plate (187) is fixedly mounted on the circumferential surface of the rotating rod (186), the limiting plate (188) is fixedly mounted on a side of the fixed frame (181) close to the Z-shaped plate (187), and a second arc surface is provided on a side of the blocking block (185) close to the loading plate (171).

8. The sheet metal punching equipment for mechanical engineering according to claim 7, characterized in that: A spiral spring is provided between the rotating rod (186) and the connecting rod (182); a slot is provided on a surface of the limiting plate (188) close to the Z-shaped plate (187); and the Z-shaped plate (187) is in contact with the surface of the limiting plate (188).

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