CN113695455A

CN113695455A - Double-built-in gantry punching machine

Info

Publication number: CN113695455A
Application number: CN202111083483.2A
Authority: CN
Inventors: 陈克伟; 云立刚; 张润华; 肖丽华
Original assignee: QINGDAO DONGHE TECHNOLOGY CO LTD
Current assignee: QINGDAO DONGHE TECHNOLOGY CO LTD
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2021-11-26
Anticipated expiration: 2041-09-16
Also published as: CN113695455B

Abstract

A double-built-in gantry punching machine relates to the technical field of sheet metal processing and is used for having higher punching force and larger throat depth. A double-built-in gantry punching machine is characterized by comprising a gantry and two groups of punching components arranged in the gantry; the portal frame comprises a feed and discharge port, a top plate positioned above the feed and discharge port and a bottom plate positioned below the feed and discharge port, and the feed and discharge port is closed loop; the two groups of stamping assemblies are distributed along the left-right direction, and each hydraulic cylinder is positioned at the inner end of the carrying frame. The throat-shaped punch has the beneficial effects of being beneficial to improving the throat depth and the punching capacity.

Description

Double-built-in gantry punching machine

Technical Field

The invention relates to the technical field of sheet metal processing, in particular to a double-built-in gantry punching machine.

Background

A punching machine, also called a punch press, is an apparatus for performing punching work on a plate material. The throat depth of the punch is an important parameter for limiting the performance of the punch, and the larger the throat depth of the punch is, the larger the width of a plate which can be processed by the punch is. However, as the throat depth of the press increases, a series of problems are also brought about: the larger the throat depth of the punching machine is, the larger the length of a cross beam piece for carrying a punching machine head is, and the increase of the length of the cross beam piece leads to the increase of a force arm, so that the moment generated by impact force is greatly increased in the punching process, and the impact resistance of the punching machine is weakened. To some extent, the impact resistance can be ensured by increasing the overall mass of the beam member and the press, but this increases the equipment costs and also makes the press cumbersome. More importantly, the manner of increasing the throat depth by reinforcing the cross beam member and the punch has limited effect and low cost performance, because the increase of the weight not only increases the production cost, but also affects the transportation, transfer, plant arrangement and other work of the equipment, so the throat depth of the punch is still greatly affected. Therefore, the punching force of the prior art device with large throat depth is generally lower, so as to protect the punching machine.

The hydraulic cylinder comprises a cylinder body and a piston rod which is connected in the cylinder body in a sliding way, wherein one of the cylinder body and the piston rod is called a hydraulic cylinder A piece, and the other one of the cylinder body and the piston rod is called a hydraulic cylinder B piece; when the hydraulic cylinder A refers to a piston rod, the hydraulic cylinder B refers to a cylinder body.

Disclosure of Invention

The invention aims to provide a double-built-in gantry punching machine which is used for achieving higher punching force and larger throat depth.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a double-built-in gantry punching machine comprises a gantry and two groups of punching components arranged in the gantry;

the portal frame comprises a feed and discharge port, a top plate positioned above the feed and discharge port and a bottom plate positioned below the feed and discharge port, and the feed and discharge port is closed loop;

the stamping assembly comprises a carrying frame, an upper die frame, a lower die frame, a hydraulic cylinder, a screw nut mechanism and a driving device, wherein the hydraulic cylinder comprises a hydraulic cylinder A piece and a hydraulic cylinder B piece, the carrying frame is slidably connected in the portal frame along the left-right direction, the screw nut mechanism is arranged between the carrying frame and the portal frame and is used for driving the carrying frame to slide left and right, the driving device is in transmission connection with the screw nut mechanism, the hydraulic cylinder A piece is slidably connected on the carrying frame along the up-down direction, a cushion piece is arranged at the top of the hydraulic cylinder A piece, the hydraulic cylinder B piece is connected with the upper die frame, the upper die frame is connected with a stamping head and is arranged downwards, the lower die frame is positioned below the carrying frame, and a lower die is connected on the lower die frame;

the two groups of stamping assemblies are distributed along the left-right direction, and each hydraulic cylinder is positioned at the inner end of the carrying frame.

Further, the screw and nut mechanism comprises a screw and a nut member matched with the screw, the screw is rotatably connected to the carrying frame, and the nut member is fixedly connected to the portal frame.

Furthermore, be equipped with the waste material mouth on the bottom plate, the waste material mouth extends along left and right sides direction.

Furthermore, be equipped with the pneumatic cylinder case on the carrier, the pneumatic cylinder case includes the bottom of the case board and is located the roof board of bottom of the case board top, pneumatic cylinder A spare is located between bottom of the case board and the roof board, pneumatic cylinder A spare is along upper and lower direction sliding connection in the hydraulic cylinder, is equipped with on the roof board to be used for wearing the hole of cover the cushion spare, the cushion spare passes the roof board of case along upper and lower direction.

Further, the pad member is detachably attached to the hydraulic cylinder member a.

Furthermore, many guide bars have been linked firmly in the pneumatic cylinder case, and the guide bar distributes along upper and lower direction, be equipped with on the pneumatic cylinder A piece be used for with guide bar complex sliding sleeve, guide bar and sliding sleeve sliding connection.

Further, be connected with mould frame on the pneumatic cylinder B spare, the guide bar passes downwards the bottom of the case board, go up mould frame along upper and lower direction with guide bar sliding connection is connected with the bolster on going up the mould frame, and the bolster is connected with mould material returned board.

Further, the front side of the carrying frame with between the portal frame, the rear side of the carrying frame with respectively be equipped with guide rail slide mechanism between the portal frame, guide rail slide mechanism including the vice A part of slip and with the vice B part of slip A part complex, the vice A part of slip links firmly on the carrying frame, the vice B part of slip links firmly on the portal frame.

Furthermore, a plurality of groups of material rollers are rotatably connected to the bottom plate, the axis of each material roller is arranged along the left and right direction, and the material rollers are distributed on the front side and the rear side of the lower die frame.

Further, the lower die frame comprises an elastic arm and a lifting seat connected to the inner end of the elastic arm, and the lower die is arranged on the lifting seat.

Has the advantages that:

1. the throat depth is large, so that the punching operation of a plate with a large width can be realized;

2. the throat depth is improved, the shock resistance is ensured not to be reduced, even the shock resistance is improved, and further the invention can realize the punching operation of the large-width plate and is also suitable for the punching operation of the plate with larger width and larger thickness;

3. the machine body (namely the portal frame in the invention) is convenient to fix, thereby being beneficial to improving the stability of the equipment;

4. compared with the prior art, the stamping device has the advantages that the stamping effect and the impact resistance are ensured, and meanwhile, the weight of the device is reduced;

5. the punching operation at any position in the width direction of the plate can be realized.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a left side schematic view of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic top view of a gantry in an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view taken along line B-B of FIG. 4;

FIG. 6 is a schematic cross-sectional view taken along line C-C of FIG. 4;

FIG. 7 is a perspective view of a punch assembly in an embodiment of the present invention;

FIG. 8 is a schematic front view of FIG. 7;

FIG. 9 is a top view of FIG. 7;

in the figure: 1 portal frame, 11 material inlet and outlet ports, 12 top plates, 13 bottom plates, 14 nut parts, 15 waste ports, 16 reinforcing parts, 17 sliding pair B parts, 2 carrying frames, 21 lead screws, 22 hydraulic cylinder boxes, 221 box bottom plates, 222 box top plates, 23 guide rods, 24 sliding pair A parts, 25 driving devices, 3 elastic arms, 31 supporting seats, 4 hydraulic cylinder A parts, 41 hydraulic cylinder B parts, 42 cushion parts, 43 stamping heads, 5 lower dies, 6 upper die frames, 61 buffer parts, 62 upper die stripper plates and 7 material rollers.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

As shown in figure 1, the double-built-in gantry punching machine comprises a gantry 1 and two groups of punching assemblies arranged in the gantry 1.

As shown in fig. 1, 4, 5 and 6, the gantry 1 includes a material inlet/outlet 11, a top plate 12 located above the material inlet/outlet 11, and a bottom plate 13 located below the material inlet/outlet 11. The top plate 12 and the bottom plate 13 are each connected with a reinforcing member 16, and the reinforcing member 16 is used to reinforce the top plate 12 or the bottom plate 13. The feed/discharge port 11 is closed.

As shown in fig. 1, 2, 7, 8, and 9, the press assembly includes a carrier 2, a lower mold frame 5, a hydraulic cylinder, a screw 21, a nut mechanism, and a driving device 25. The hydraulic cylinder comprises a hydraulic cylinder A piece 4 and a hydraulic cylinder B piece 41, wherein in the embodiment, the hydraulic cylinder A piece 4 specifically corresponds to a cylinder body of the hydraulic cylinder, and the hydraulic cylinder B piece specifically corresponds to a piston rod of the hydraulic cylinder. The carrying frame 2 is connected in the portal frame 1 in a sliding mode along the left-right direction, and the screw and nut mechanism is arranged between the carrying frame 2 and the portal frame 1 and used for driving the carrying frame 2 to slide left and right. The lead screw-nut mechanism includes a lead screw 21 and a nut member 14 engaged with the lead screw 21. As an alternative scheme, the screw 21 is rotatably connected to the carrying frame 2, the nut member 14 is fixedly connected to the portal frame 1, a hole for penetrating a bolt is formed in the nut member 14, the bolt penetrates through the hole, and the nut member 14 is fixedly connected to a top plate of the portal frame 1 through the bolt and is further fixedly connected to the portal frame 1. The driving device 25 is in transmission connection with the nut mechanism of the lead screw 21, in the present embodiment, a servo motor is used as the driving device, and when the driving device is used, a rotating shaft of the servo motor is connected with the lead screw 21 through a coupling (the coupling is omitted in the drawing for improving the drawing efficiency), and is further used for driving connection. The hydraulic cylinder A4 is connected to the carrier 2 in a vertically sliding manner. The top of pneumatic cylinder A4 is equipped with pad 42, and pneumatic cylinder B41 is connected with mould frame 6, and the setting is fixed on last mould frame 6 down to the punching press head 43, and lower mould frame 5 is located the below of putting up frame 2, and lower mould frame 5 is fixed on holding up seat 31. The two groups of stamping assemblies are distributed along the left and right directions. By definition, between two sets of stamping assemblies distributed along the left-right direction, the opposite ends of the two stamping assemblies are the inner ends of the stamping assemblies, and the ends far away from each other are the inner ends of the carrier 2 where the outer ends of the stamping assemblies are located.

The invention has the advantages that 1, the throat depth is large, and the punching operation of a plate with larger width can be realized; 2. the throat depth is improved, the shock resistance is guaranteed not to be reduced, and even the shock resistance is improved, so that the large-width plate punching machine can be suitable for punching operation of plates with large width and large thickness while realizing punching operation of the plates with large width. 3. The machine body (namely the portal frame in the invention) is convenient to fix, thereby being beneficial to improving the stability of the equipment. 4. Compared with the prior art, the stamping device has the advantages that the stamping effect and the impact resistance are ensured, and meanwhile, the weight of the device is favorably reduced. 5. The punching operation at any position in the width direction of the plate can be realized.

As shown in fig. 1 to 9, the principle of the present invention for achieving the above technical effects is described in conjunction with the usage of the present invention. The use mode of the portal frame is that the base of the portal frame 1 can be fixedly connected to the ground through the foundation bolts in the use process. The plate conveying device needs to be matched with a conveying line for conveying plates, the conveying line is used for conveying the plates to the material inlet and outlet 11 for punching, the plates are conveyed continuously after punching is completed, and then the plates are conveyed away from the material inlet and outlet 11. During punching operation, the plate is located between the upper die stripper plate 62 and the lower die frame 5, the hydraulic cylinder drives the upper die frame 6, so as to drive the punch 43 to perform punching operation, and further perform punching operation, at the moment of punching, under the action of impact force, the hydraulic cylinder A slides upwards relative to the carrying frame 2, then the cushion piece 42 is pressed against the lower side of the top plate 12, so as to transfer the impact force to the top plate 12 to bear, and the structure of the portal frame enables the top plate 12 and the bottom plate 13 of the portal frame to have good impact resistance, so that the structure of the portal frame 1 is beneficial to the fact that the material inlet and outlet 11 has large length, the length of the material inlet and outlet 11 determines the maximum width of a punched object (plate), and therefore, the throat depth in the traditional sense is improved. Meanwhile, the structure of the portal frame 1 is beneficial to reducing the weight and ensuring that the top plate 12 and the bottom plate 13 have better shock resistance. And the above-mentioned connection and the overall arrangement mode of two sets of punching press subassemblies in portal frame 1 do benefit to the interval between these two sets of punching press subassemblies inner of convenient regulation, just also do benefit to the position of conveniently adjusting to punch a hole, the interval of punching a hole, and then do benefit to the convenience and punch a hole in the optional position of being processed panel.

As shown in fig. 4 to 6, the bottom plate 13 is provided with a waste opening 15, and the waste opening 15 extends in the left-right direction. The scrap opening 15 is used to discharge scrap generated by punching during the punching operation, thereby not affecting the subsequent continuous punching operation.

As shown in fig. 7 to 9, the carrier 2 is provided with a hydraulic cylinder box 22, and the hydraulic cylinder box 22 includes a box bottom plate 221 and a box top plate 222 located above the box bottom plate 221. The hydraulic cylinder A part 4 is positioned between the box bottom plate 221 and the box top plate 222, the hydraulic cylinder A part 4 is connected in the hydraulic box in a sliding mode along the vertical direction, and the distance between the box top plate 222 and the box bottom plate 221 is larger than the size of the hydraulic cylinder A part in the vertical direction, so that the hydraulic cylinder A part is connected in the carrying frame in a sliding mode along the vertical direction. The box top plate 222 is provided with a hole for inserting the cushion member 42, and the cushion member 42 penetrates the box top plate 222 in the up-down direction. Sliding connection pneumatic cylinder through this kind of technical scheme does benefit to and forms the protection to pneumatic cylinder A spare, under the state of non-impact punching hole, does benefit to and lifts to pneumatic cylinder A spare formation through bottom plate 221. The pad 42 is detachably attached to the cylinder a 4 and has the function of protecting the cylinder. The middle of pneumatic cylinder case has linked firmly many guide bars 23, and guide bar 23 distributes along upper and lower direction, is equipped with on pneumatic cylinder A piece 4 be used for with guide bar 23 complex sliding sleeve, guide bar 23 and sliding sleeve sliding connection, this does benefit to and avoids taking place the friction between pneumatic cylinder A piece and the pneumatic cylinder case, and then does benefit to and avoids wearing and tearing between the two, simultaneously, also does benefit to the pneumatic cylinder and can smoothly slide on upper and lower direction.

As shown in fig. 2, 7, 8 and 9, the upper mold frame 6 is attached to the hydraulic cylinder B41, and the guide rod 23 passes downward through the bottom plate 221. The upper die frame 6 is connected with the guide rod 23 in a sliding manner along the vertical direction, a buffer member 61 is connected to the upper die frame 6, and an upper die stripper plate 62 is connected to the buffer member 61. The buffer part 61 has the function that in the stamping process, the upper die can move upwards relative to the stamping head 43, so that the completion of the punching work can be ensured; after punching, the punching head 43 moves upwards, the die stripper plate 62 on the buffer 61 drive can move downwards relative to the punching head 43, so that the waste in the die hole position of the upper die can be ejected, and the material stripping work is facilitated.

As shown in fig. 2, 3, 7, 8, and 9, rail carriage mechanisms are provided between the front side of the carrier 2 and the gantry 1, and between the rear side of the carrier 2 and the gantry 1, respectively. The rail slide mechanism includes a slide pair a member 24 and a slide pair B member 17 that engages with the slide pair a member 24, and in the present embodiment, the slide pair a member 24 corresponds to a rail and the slide pair B member corresponds to a slide. The sliding pair A part 24 is fixedly connected on the carrying frame 2, and the sliding pair B part 17 is fixedly connected on the portal frame 1. This facilitates the formation of a stable support of the carrier 2 in the portal frame 1, while at the same time ensuring that the carrier 2 can slide smoothly in the portal frame 1.

As shown in fig. 1, a plurality of sets of material rollers 8 are rotatably connected to the bottom plate 13, the axes of the material rollers 8 are arranged along the left-right direction, and the material rollers 8 are distributed on the front side and the rear side of the lower mold 5 frame. The material roller 8 is used for lifting the processed plate, so that smooth and accurate transportation of the plate is guaranteed, and the accuracy of a punching position is guaranteed.

As shown in fig. 7 to 8, the lower mold 5 frame includes an elastic arm 3 and a lift seat 31 connected to an inner end of the elastic arm 3, and the lower mold 5 is disposed on the lift seat 31. At a moment of the punching operation, the elastic arm 3 is elastically deformed by a certain amount, so that the lower side of the lifting seat 31 is pressed against the upper side of the bottom plate 13 by the impact force. After the punching operation is completed, the elastic arm 3 is elastically restored, so that the lifting seat 31 can be separated from the lower bottom plate 13 by a certain distance, and the carrying frame can smoothly slide along the left and right directions.

Claims

1. A double-built-in gantry punching machine is characterized by comprising a gantry and two groups of punching components arranged in the gantry;

the stamping assembly comprises a carrying frame, an upper die frame, a lower die frame, a hydraulic cylinder, a lead screw nut mechanism and a driving device, wherein the hydraulic cylinder comprises a hydraulic cylinder A piece and a hydraulic cylinder B piece, the carrying frame is slidably connected in the portal frame along the left-right direction, the lead screw nut mechanism is arranged between the carrying frame and the portal frame and is used for driving the carrying frame to slide left and right, the driving device is in transmission connection with the lead screw nut mechanism, the hydraulic cylinder A piece is slidably connected on the carrying frame along the up-down direction, a cushion piece is arranged at the top of the hydraulic cylinder A piece, the hydraulic cylinder B piece is connected with the upper die frame, the upper die frame is connected with a stamping head and arranged downwards, the lower die frame is positioned below the carrying frame, and a lower die is connected on the lower die frame;

2. A double internal gantry press according to claim 1, wherein said screw and nut mechanism comprises a screw and a nut member engaged with the screw, the screw being rotatably connected to said carrier, the nut member being fixedly attached to said gantry.

3. A double built-in gantry press according to claim 1, wherein said bottom plate has a scrap opening extending in a left-right direction.

4. The double-built-in gantry punching machine according to claim 1, wherein the carrier is provided with a hydraulic cylinder box, the hydraulic cylinder box comprises a box bottom plate and a box top plate positioned above the box bottom plate, the hydraulic cylinder A is positioned between the box bottom plate and the box top plate, the hydraulic cylinder A is slidably connected in the hydraulic cylinder box in the up-down direction, the box top plate is provided with a hole for penetrating the cushion member, and the cushion member penetrates through the box top plate in the up-down direction.

5. A double internal gantry press according to claim 1 or 4, wherein said pad is detachably attached to said hydraulic cylinder A.

6. A double built-in gantry punching machine according to claim 4, wherein a plurality of guide rods are fixedly connected to the hydraulic cylinder box, the guide rods are distributed along the vertical direction, a sliding sleeve for matching with the guide rods is arranged on the hydraulic cylinder A, and the guide rods are slidably connected with the sliding sleeve.

7. A double-built-in gantry punching machine according to claim 6, wherein an upper die frame is connected to the hydraulic cylinder B, the guide rod penetrates through the bottom plate of the box downwards, the upper die frame is slidably connected with the guide rod in the up-down direction, and a buffer member is connected to the upper die frame and is connected with an upper die stripper plate.

8. A dual internal gantry press according to claim 1, wherein a track carriage mechanism is disposed between the front side of the carrier and the gantry, and between the rear side of the carrier and the gantry, the track carriage mechanism including a sliding pair a member and a sliding pair B member cooperating with the sliding pair a member, the sliding pair a member being attached to the carrier, and the sliding pair B member being attached to the gantry.

9. A double built-in gantry punching machine according to claim 1, wherein a plurality of material rollers are rotatably connected to the base plate, the axes of the material rollers are arranged in the left-right direction, and the material rollers are distributed on the front side and the rear side of the lower die frame.

10. A double built-in gantry press according to claim 1, wherein said lower die frame comprises a resilient arm and a lifting base connected to an inner end of the resilient arm, said lower die being disposed on the lifting base.