CN108941755B - Plate shearing machine and lifting type rear material blocking device thereof - Google Patents
Plate shearing machine and lifting type rear material blocking device thereof Download PDFInfo
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- CN108941755B CN108941755B CN201811031088.8A CN201811031088A CN108941755B CN 108941755 B CN108941755 B CN 108941755B CN 201811031088 A CN201811031088 A CN 201811031088A CN 108941755 B CN108941755 B CN 108941755B
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- 239000000463 material Substances 0.000 title claims abstract description 196
- 230000000903 blocking effect Effects 0.000 title claims abstract description 181
- 238000010008 shearing Methods 0.000 title claims abstract description 62
- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 230000001360 synchronised effect Effects 0.000 claims description 28
- 230000009471 action Effects 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
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- 239000013013 elastic material Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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- 229920002635 polyurethane Polymers 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D33/00—Accessories for shearing machines or shearing devices
- B23D33/10—Stops for positioning work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/06—Sheet shears
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- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The invention discloses a plate shearing machine and a lifting type rear material blocking device thereof, and belongs to the technical field of plate shearing machine material blocking. The plate shearing machine comprises an upper tool rest and a rear material blocking device arranged on the upper tool rest; the rear material blocking device comprises a material blocking cross beam, a material blocking driving mechanism and a material blocking lifting assembly; the material blocking driving mechanism is used for driving the material blocking cross beam to feed along the material blocking direction and comprises a shell and a sliding seat; the material blocking lifting assembly comprises a hanging frame, a slope plate and a roller; the front end of the hanging frame is connected with a material blocking cross beam, the rear end of the hanging frame is provided with the idler wheels, and the middle part of the hanging frame is rotatably connected with the sliding seat through a hanging frame shaft; the ramp plate is mounted at the end of the housing with a pinch roller incline toward the rollers. According to the plate shearing machine, an additional driving control unit and redundant parts are not required to be added, the functions and the precision of the original back stop materials are not sacrificed, and the purpose of lifting the stop beam by utilizing the lever principle is achieved on the premise of fully utilizing the power of the original back stop material control system and the motor, so that the ultra-long plate is avoided.
Description
Technical Field
The invention belongs to the technical field of plate shearing machine material blocking, and particularly relates to a plate shearing machine, a lifting type rear material blocking device thereof and a using method thereof. Background
The plate shearing machine belongs to one of forging and pressing machines, and has the main function of metal processing industry. The working principle of the plate shearing machine is that one blade is used for reciprocating and linearly moving relative to the other blade to shear the plate, and the plate is broken and separated according to the required size by means of the moving upper blade and the fixed lower blade and by adopting reasonable blade gaps to apply shearing force to the metal plates with various thicknesses. The product is widely applicable to aviation, light industry, metallurgy, chemical industry, construction, ships, automobiles, electric power, electric appliances, decoration and other industries to provide needed special machinery and complete equipment.
The plate shearing machine generally comprises a workbench, an upper tool rest, a rear material blocking device and the like, wherein the rear material blocking device plays a role in positioning the size of a workpiece, but when a processed plate is large and extends into a distance beyond the positioning distance of the rear material blocking device, the rear material blocking device has an obstacle effect, and the problem cannot be solved by lengthening the positioning length of the rear material blocking device under the condition that the whole machine size of the plate shearing machine is not changed. Under this condition, the traditional way is to directly demolish the back stop material crossbeam, and the back stop material crossbeam is installed again after having processed panel, but like this dismouting repeatedly brings very big trouble for production, has wasted manpower and time, and the dismouting repeatedly can reduce back stop material positioning accuracy.
Due to the inconvenience of dismantling the rear stop beam, a rear stop device capable of lifting is designed by a person in the follow-up, for example, the Chinese patent application number is: 201510205151.5 publication date is: patent literature on the day of 7 months and 8 years in 2015 discloses a device and a method for automatically lifting a rear blocking material of a plate shearing machine, belongs to the field of plate shearing machines, and solves the problems that when an existing plate shearing machine processes large and long plates, the rear blocking material device generates obstruction, a rear blocking material beam needs to be removed, and production efficiency is affected. The device comprises a back stop material, an upper tool rest, a driver, a screw box, a first guide wheel, a reversing wheel and a second guide wheel, wherein the screw box is fixed on the upper tool rest, one end of the screw box is connected with the driver, the other end of the screw box is provided with a connecting frame, two steel wire ropes are arranged on the connecting frame, one steel wire rope is connected with the back stop material through the first guide wheel, and the other steel wire rope is connected with the back stop material through the reversing wheel and the second guide wheel in sequence; the first guide wheel, the reversing wheel and the second guide wheel are all fixed on the upper tool rest. According to the scheme, the rear baffle can be lifted up quickly, more deep space is reserved for the plate to be processed, manpower and time are reduced, and therefore production efficiency is improved.
Of course, the applicant has carried out related research and development on this aspect, and has also adopted the structural form of lifting back stop material, and has filed a patent, and its patent application number is: 201510895018.7, publication date: 2016, 2 months, 3 days, named: a plate shearing machine with a rear stop device capable of automatically lifting. The plate shearing machine comprises a knife rest, a rear material blocking device, a pull rod device and a connecting beam; the rear side of the tool rest is provided with an inclined supporting plate, and a base is arranged above the supporting plate; the base is provided with a driving device, and the front end of the base is hinged with a rocker arm piece; the driving device comprises a driving shaft, and one end of the driving shaft is connected with the middle part of the rocker arm piece; one end of the pull rod device is connected with one end of the rocker arm piece far away from the base, and the other end of the pull rod device is connected with the middle part of the connecting beam; the two ends of the connecting beam are respectively fixed on the rear material blocking device; the front end of the rear material blocking device is hinged to the bottom of the supporting plate. The automatic lifting of the rear material blocking device can be realized by the scheme, and the automatic lifting device has the advantages of compact structure, high working efficiency, strong flexibility, high accuracy, small vibration and noise of the whole machine and long service life.
The two schemes can realize the shearing operation of the ultra-long plate without dismantling the material blocking cross beam, but the shearing operation is realized by integrally lifting the rear material blocking device, and an independent lifting mechanism is additionally arranged, so that the structure is more complex, the production cost and the weight of the whole machine are greatly increased, the operability is relatively poor, and lifting power is additionally provided.
Disclosure of Invention
1. Problems to be solved
The invention provides a lifting type rear material blocking device of a plate shearing machine, which aims to solve the problems that the structure is complex, the production cost and the weight of the whole machine are increased, and additional lifting power is required when the existing plate shearing machine shears an ultra-long plate.
According to the lifting type rear stop device of the plate shearing machine, an additional driving control unit and redundant parts are not required to be added, the functions and the precision of the original rear stop are not sacrificed, and the purpose of lifting the stop beam by utilizing the lever principle on the premise of fully utilizing the power of the original rear stop control system and the motor is achieved, so that the ultra-long plate is avoided.
The invention also provides a using method of the lifting type rear stop device of the plate shearing machine, lifting of the rear stop beam is realized, and plate shearing operation of the ultra-long plate is met.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
A lifting type rear material blocking device of a plate shearing machine comprises a material blocking cross beam, a material blocking driving mechanism and a material blocking lifting assembly; the material blocking driving mechanism is used for driving the material blocking cross beam to feed along the material blocking direction and comprises a shell and a sliding seat; the material blocking lifting assembly comprises a hanging frame, a slope plate and a roller; the front end of the hanging frame is connected with a material blocking cross beam, the rear end of the hanging frame is provided with the idler wheels, and the middle part of the hanging frame is rotatably connected with the sliding seat through a hanging frame shaft; the slope plate is arranged at the tail end of the shell and is provided with a pinch roller inclined surface facing the roller; when the material blocking cross beam moves backwards to be close to the tail end of the shell under the action of the material blocking driving mechanism, the roller contacts and presses the pinch roller inclined surface of the inclined plate, so that the hanging frame rotates around the hanging frame shaft, and the front end of the hanging frame drives the material blocking cross beam to lift.
As a further improvement, the hanger comprises two hanging plates which are arranged side by side, and the idler wheel is fixed between the two hanging plates through a pin; and a hanging frame swivel base is arranged between the two hanging plates below the sliding seat, and the hanging frame is arranged on the hanging frame swivel base through a hanging frame shaft.
As a further improvement, the lower side of the rear end of the hanging frame swivel base is provided with an inclined locating surface, a limiting block is fixed between the two hanging plates below the locating surface, a screw hole formed in the limiting block is internally screwed with a set screw, and the front end part of the set screw extends out of the screw hole of the limiting block and then can be propped against the locating surface of the hanging frame swivel base.
As a further improvement, the front end of the hanging frame is provided with a connecting plate extending in the left-right direction, a row of vertical waist-shaped holes are formed in the connecting plate, and the hanging frame is screwed into the material blocking cross beam for connection through bolts penetrating through the waist-shaped holes in the connecting plate.
As a further improvement, foot plates are symmetrically arranged on the left side and the right side close to the front end of the shell, and waist-shaped holes along the front-back direction are formed in the two ends of the foot plates.
As a further improvement, the device also comprises a synchronous leveling component; the synchronous leveling assembly comprises a nut seat, an adjusting bolt and a locking screw; a screw rod which is arranged along the front-back direction is arranged in the shell, and is matched with a screw rod nut; the screw nut is connected with one end of the nut seat, and an adjusting screw hole parallel to the axis direction of the screw is formed in the other end of the nut seat; the adjusting bolt is screwed into the adjusting screw hole from the front side of the nut seat, and the end face of the bolt head of the adjusting bolt is propped against the end face of the rear side of the sliding seat; the locking screw is inserted into the adjusting screw hole from the rear side of the nut seat, penetrates through the center hole of the adjusting screw and is screwed into the screw hole on the rear side end face of the sliding seat.
As a further improvement, a gasket is arranged between the head end of the locking screw and the rear end face of the nut seat.
A plate shearing machine comprises an upper tool rest and the lifting type rear material blocking device of the plate shearing machine; the material blocking driving mechanism and the material blocking lifting assembly are correspondingly provided with two groups, and the two hanging frames are connected with the two ends of the material blocking cross beam; and the two groups of shells of the material blocking driving mechanisms are arranged on the upper knife rest at the rear side of the upper knife blade of the bending machine.
When the material blocking cross beam needs to be lifted, the material blocking driving mechanism drives the sliding seat to move backwards and drives the hanging frame of the material blocking lifting assembly; when the roller contacts with the pinch roller inclined surface of the inclined plate, the sliding seat continuously moves backwards, the inclined plate has acting force vertical to the pinch roller inclined surface on the rear end of the hanging frame through the roller, so that the hanging frame rotates around the hanging frame shaft, and the front end of the hanging frame drives the material blocking cross beam to lift;
as a further improvement, the fine adjustment process for the front and rear directions of the material blocking cross beam comprises the following steps: and loosening the locking screw, screwing the adjusting bolt, adjusting the position of the sliding seat according to the front-back direction of the material blocking cross beam, and screwing the locking screw.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the lifting type rear material blocking device of the plate shearing machine, lifting operation of the material blocking cross beam can be achieved by simply adding the material blocking lifting component on the basis of the existing commonly used rear material blocking device, fewer added parts are needed, the rear material blocking device is not needed to be redesigned, design compatibility is good, an original structure can be expanded, an additional driving control unit is not needed to be added, the functions and the precision of the original rear material blocking are not sacrificed, and the purpose of lifting the material blocking cross beam by utilizing the lever principle is achieved on the premise of fully utilizing the power of the original rear material blocking control system and the motor, so that an ultra-long plate is avoided. The device has compact structure, firm connection, long service life and high precision.
(2) According to the lifting type rear stop device of the plate shearing machine, the set screw arranged on the limiting block on the hanging frame can extend out of the distance of the screw hole on the limiting block through the head end of the set screw, and the locating surface of the hanging frame swivel base is propped against the locating surface, so that the hanging frame rotates, and the angle of the stop beam in the vertical plane is adjusted in a micro-scale manner; and the vertical up-down position of the material blocking cross beam is adjusted by matching with the waist-shaped holes on the connecting plate, so that the posture of the material blocking cross beam is comprehensively adjusted, and the material blocking precision requirement is met.
(3) According to the lifting type rear material blocking device of the plate shearing machine, the front and rear positions of the material blocking cross beam can be adjusted slightly through the synchronous leveling assembly, and the structure mode of synchronously supporting and driving two ends of the material blocking cross beam is basically adopted at present, so that the front and rear positions of supporting points at two ends of the material blocking cross beam can be respectively adjusted on one hand, and the length direction of the material blocking cross beam is parallel to the edge direction of the plate shearing machine; on the other hand keeps off the synchronous action at material crossbeam both ends and is realized through the cooperation of hold-in range and two sets of synchronous pulleys that keep off material actuating mechanism, when the hold-in range installation, can not guarantee that the hold-in range blocks simultaneously on two sets of synchronous pulleys that keep off material actuating mechanism, and this kind of structure can guarantee when rotating the lead screw, need not to adjust and keeps off the material crossbeam front and back position, even keep off the material crossbeam position variation, also can conveniently adjust.
(4) After the lifting type rear material blocking device is arranged on the plate shearing machine, the lifting operation of the material blocking cross beam can be conveniently realized, and the plate shearing machine is suitable for shearing and processing of ultra-long plates.
Drawings
FIG. 1 is a perspective view of a rear dam assembly of the present invention;
FIG. 2 is a perspective view of the connection of the material blocking driving mechanism and the material blocking lifting assembly in the rear material blocking device;
FIG. 3 is a front view of the connection of the material blocking driving mechanism and the material blocking lifting assembly in the rear material blocking device;
FIG. 4 is a bottom view of FIG. 3;
FIG. 5 is a right side view of FIG. 3;
FIG. 6 is a front cross-sectional view of a dam drive mechanism in a rear dam assembly of the present invention;
FIG. 7 is a cross-sectional view of A-A of FIG. 6;
FIG. 8 is a front cross-sectional view of the synchronous leveling assembly installation in the stop drive mechanism;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a side view of a hanger portion of a dam lift assembly of the rear dam assembly of the present invention;
fig. 11 is a side view of the rear blanking device of the present invention mounted to a bending machine.
The reference numerals in the drawings are respectively:
100. a material blocking cross beam; 110. a striker plate; 111. a connecting plate; 112. a locking block; 113. terminating the hole; 114. a notch; 120. rectangular steel pipes; 130. a stud;
200. a material blocking driving mechanism; 210. a housing; 211. foot plates; 212. a waist-shaped hole; 220. a screw rod; 221. a synchronous pulley; 230. a guide rail; 240. a slide; 241. a buffer member; 250. a lead screw nut; 260. a synchronous leveling assembly; 261. a nut seat; 262. an adjusting bolt; 263. a locking screw; 264. adjusting the screw hole; 270. a slide block;
300. a material blocking lifting assembly; 310. a hanging rack; 311. a connecting plate; 312. a waist-shaped hole; 313. putting down the limiting surface; 314. lifting the limiting surface; 320. a ramp plate; 321. a pinch roller inclined plane; 330. a roller; 340. a hanger shaft; 350. a hanging rack swivel base; 351. a positioning surface; 360. a limiting block; 361. a set screw;
400. and (5) an upper tool rest.
Detailed Description
Hereinafter, various preferred embodiments of the present invention will be described with reference to a plate shearing machine. Hereinafter, the front-rear, left-right and up-down directions are referred to as the front-rear direction, the left-right direction (or the lateral direction) and the up-down direction, with reference to the feeding direction of the plate shearing machine unless otherwise explicitly indicated. The invention is further described below in connection with specific embodiments and the accompanying drawings.
Example 1
As shown in fig. 1, the present embodiment provides a lifting type rear stop device of a plate shearing machine, which is mainly used on the plate shearing machine to meet the shearing requirements of plates with different lengths, and comprises a stop beam 100, a stop driving mechanism 200 and a stop lifting assembly 300. Wherein, the same as the prior art, two sets of material blocking driving mechanisms 200 are adopted to respectively support and drive from two ends of the material blocking cross beam 100, so as to ensure the stability of support, and the material blocking driving mechanisms are used for driving the material blocking cross beam 100 to feed along the material blocking direction, but the two sets of material blocking driving mechanisms 200 adopt the same driving power element, namely, one motor simultaneously drives the two sets of material blocking driving mechanisms 200, so as to ensure the synchronous movement of two ends of the material blocking cross beam 100. For the shearing operation requirement exceeding the material blocking range of the material blocking cross beam 100, the material blocking lifting assembly 300 is specifically designed to lift the material blocking cross beam 100 so as to avoid the plate materials; similarly, two sets of material blocking lifting assemblies 300 are correspondingly arranged on the two sets of material blocking driving mechanisms 200 respectively. The structural principle of each part is described in more detail below.
The connection structure of the dam drive mechanism 200 and the dam lift assembly 300 is shown in connection with fig. 2, 3, 4, 5, and 9. The stop drive mechanism 200 includes a housing 210, a lead screw 220, a guide rail 230, a slide 240, a lead screw nut 250, and a slide 270. The casing 210 is a casing structure with an opening at the lower end, and extends along the front-rear direction; the screw 220 and the guide rail 230 are arranged in parallel and side by side inside the housing 210, both ends of the screw 220 are supported on the front and rear side plates of the housing 210 through bearings, and after the front end of the screw 220 extends out of the housing 210, a synchronous pulley 221 is connected through a key, and the guide rail 230 is mounted on the top surface inside the guide rail 230 through a screw. The two synchronous pulleys 221 of the two groups of material blocking driving mechanisms 200 are connected with the motors through synchronous belt transmission, so that one motor drives the screw rods 220 of the two groups of material blocking driving mechanisms 200 at the same time, and the two sliding seats 240 synchronously move forwards and backwards. The slider 270 is installed on the upper side of the slider 240 and slidably engaged with the guide rail 230, where the slider 270 has two, ensuring the stability of the sliding support. The screw nut 250 is screw-fitted over the screw 220, and it is coupled to the slider 240 such that the screw 220 rotates, and the slider 240 is driven by the screw nut 250, and the slider 240 moves in the front-rear direction along the rail 230 under the fit restriction of the slider 270 and the rail 230. Here, the buffer pieces 241 are installed at both sides of the sliding seat 240 in the front-rear direction, and play a role in mechanical limitation and buffer when the sliding seat 240 moves to both front and rear ends of the housing 210 beyond a limit position, so that damage to the sliding seat 240 caused by impact is reduced; the cushioning member 241 may be made of rubber, polyurethane or other elastic material.
Because the rear stop is mounted to the plate shearing machine, it is important to mount the housing 210 to the plate shearing machine to ensure that the two sets of stop drives 200 are located at the same height. As shown in fig. 2 and 4, in the present embodiment, the foot plates 211 are symmetrically disposed at both sides near the front end of the housing 210, the waist-shaped holes 212 along the front-rear direction are formed at both ends of the foot plates 211, and the rear striker is mounted by passing bolts through the waist-shaped holes 212 on the foot plates 211. The foot plate 211 is welded to the housing 210, and the upper surface of the foot plate 211 is subjected to post-welding milling processing as a reference surface, so that the installation of the rear dam device can be ensured.
Particularly, the structure of the material blocking lifting assembly 300 is required, which is mounted on the material blocking driving mechanism 200. As shown in fig. 2, 3, 4 and 5, the material blocking lifting assembly 300 includes a hanger 310, a ramp plate 320 and a roller 330. Wherein, the front end of the hanger 310 is connected with the material blocking cross beam 100, the rear end thereof is provided with the roller 330, and the middle part thereof is rotatably connected with the sliding seat 240 through the hanger shaft 340. Here, the hanger 310 includes two hanging plates disposed side by side, and the roller 330 is fixed between the two hanging plates by a pin; instead of directly connecting the slider 240, the hanger 310 mounts a hanger swivel 350 between two hanger plates below the slider 240, and the hanger 310 is mounted to the hanger swivel 350 by a hanger shaft 340. A ramp plate 320 is mounted at the end of the housing 210 with a pinch roller ramp 321 facing the roller 330. When the material blocking beam 100 moves backward to approach the end of the shell 210 under the action of the material blocking driving mechanism 200, the roller 330 contacts and presses the pinch roller inclined surface 321 of the inclined plate 320, so that the hanging frame 310 rotates around the hanging frame shaft 340, and the front end of the hanging frame 310 drives the material blocking beam 100 to lift.
Notably, because the hanger 310 is rotatable, the presence of machining and installation errors can result in misalignment of the stop beam 100 in the vertical direction after installation. For this reason, as shown in fig. 5 and 10, in this embodiment, the lower side of the rear end of the hanger bracket 350 has an inclined positioning surface 351, a limiting block 360 is fixed between two hanging plates located below the positioning surface 351, a screw hole formed in the limiting block 360 is screwed with a set screw 361, and the front end of the set screw 361 extends out of the screw hole of the limiting block 360 and then can be propped against the positioning surface 351 of the hanger bracket 350. When the material blocking cross beam 100 is in a put-down state, the set screw 361 is propped against the positioning surface 351, and the set screw 361 can be rotated to extend out of the distance of the screw hole on the limiting block 360 through the head end of the set screw 361, so that the hanging frame 310 rotates, and the angle of the material blocking cross beam 100 in the vertical surface is slightly adjusted. In order to avoid loosening of the set screw 361, a nut is mounted on the set screw 361 extending out of the lower portion of the limiting block 360, and the set screw 361 can be locked. Meanwhile, the front end of the hanging rack 310 is provided with a connecting plate 311 extending in the left-right direction, a row of 3 (the number can be set according to the requirement) vertical waist-shaped holes 312 are formed in the connecting plate 311, and the hanging rack 310 is screwed into the material blocking cross beam 100 for connection through bolts penetrating through the waist-shaped holes 312 on the connecting plate 311, so that the vertical up-down position of the material blocking cross beam 100 can be adjusted in a micro-scale manner through the waist-shaped holes 312. Therefore, the matched use of the set screw 361 and the connecting plate 311 achieves the purpose of comprehensively adjusting the posture of the material blocking cross beam 100, and meets the material blocking precision requirement.
In addition, in order to limit the rotation of the hanger 310, the hanging plate structure of the hanger 310 is optimally designed, and as shown in fig. 10, the upper side of the hanging plate is provided with a lowering limit surface 313 and a lifting limit surface 314. When the material blocking beam 100 is in the non-lifted state, if the set screw 361 does not play a limiting role, the putting down limiting surface 313 can be contacted with the bottom surface of the sliding seat 240 to perform a secondary limiting role, so that the roller 330 is prevented from touching the screw rod 220 or the guide rail 230; similarly, when the material blocking beam 100 is in the lifted state, if the hanger 310 rotates beyond the positive lifting range, the lifting limiting surface 314 can contact the bottom surface of the sliding seat 240 to perform the secondary limiting function, so as to prevent the material blocking beam 100 from colliding with the housing 210.
To sum up, the lifting operation of the material blocking cross beam 100 can be realized by simply adding the material blocking lifting component on the basis of the conventional commonly used material blocking device, the added parts are fewer, the rear material blocking device is not required to be redesigned, the design compatibility is good, the original structure can be expanded, an additional driving control unit is not required to be added, the function and the precision of the original rear material blocking are not sacrificed, and the material blocking cross beam 100 is lifted by utilizing the lever principle on the premise of fully utilizing the power of the original rear material blocking control system and the motor, so that the purpose of avoiding an ultra-long plate is achieved. The device has compact structure, firm connection, long service life and high precision.
Example 2
The present embodiment is designed optimally based on the structure of the lifting type rear stop device of the plate shearing machine in embodiment 1, and the fine adjustment structure of the stop beam 100 is added, so that the precise micro adjustment of the stop beam 100 in the front-rear direction is realized.
As shown in connection with fig. 4, 6, 7 and 8, precise fine adjustment of the dam beam 100 in the fore-aft direction is achieved by a synchronous leveling assembly 260. The synchronous leveling assembly 260 includes a nut seat 261, an adjustment bolt 262, and a locking screw 263. Wherein, a screw 220 arranged along the front-rear direction is installed in the housing 210, and the screw 220 is matched with a screw nut 250; the screw nut 250 is connected with one end of a nut seat 261, and an adjusting screw hole 264 parallel to the axis direction of the screw 220 is formed in the other end of the nut seat 261; an adjusting bolt 262 is screwed into the adjusting screw hole 264 from the front side of the nut seat 261, and the bolt head end surface thereof abuts against the rear side end surface of the slide seat 240; the locking screw 263 is inserted into the adjustment screw hole 264 from the rear side of the nut seat 261, and is screwed into the screw hole on the rear side end surface of the slider 240 after passing through the center hole of the adjustment screw 262. And a washer is interposed between the head end of the locking screw 263 and the rear end surface of the nut seat 261.
It can be seen from embodiment 1 that in the rear material blocking device, two sets of material blocking driving mechanisms 200 are adopted to drive from two ends of the material blocking beam 100, so that it is required to ensure that the vertical direction of the material blocking beam 100 is kept parallel to the upper blade direction of the plate shearing machine after the material blocking beam 100 is installed, but due to unavoidable mechanical errors such as machining errors and installation errors, a tiny error exists between the vertical direction of the material blocking beam 100 and the upper blade direction of the plate shearing machine after the material blocking beam 100 is installed, and the adjustment can be performed through the structure of the synchronous leveling assembly 260, so that the consistency is achieved.
More importantly, the synchronous pulley 221 installed at the front end of the screw rod 220 in the two sets of material blocking driving mechanisms 200 needs to be connected with the same synchronous belt for material blocking, and in actual installation, the following problems often exist: when the synchronous belt is sleeved on the synchronous pulley 221 at the front end of the screw rod 220 in one group of material blocking driving mechanism 200, the synchronous pulley 221 is difficult to be just sleeved on and clamped into the synchronous pulley 221 of the other group, and a tooth position angle is often existed, so that the screw rod 220 needs to be rotated or the synchronous pulley 221 needs to be removed, the sliding seat 240 can be moved due to the rotation of the screw rod 220, the position difference occurs at the two ends of the material blocking cross beam 100, the precision requirement cannot be met, the operation for removing the synchronous pulley 221 is very complicated, and the operation in a narrow space at the rear side of the plate shearing machine is difficult. Also, this problem can be effectively solved by the structural adjustment of the synchronous leveling assembly 260 described above.
The synchronous leveling assembly 260 is adopted to finely adjust the front and back directions of the material blocking cross beam 100, and the specific operation process is as follows: the locking screw 263 is loosened, the adjusting bolt 262 is screwed, the position of the sliding seat 240 is adjusted according to the front-back direction of the material blocking beam 100, the vertical material blocking direction of the material blocking beam 100 is kept parallel to the upper blade direction of the plate shearing machine, and then the locking screw 263 is screwed.
In addition, the material blocking beam 100 is generally long as a material blocking member, and there is a deformation error, so that the material blocking surface itself may not be a plane. For this purpose, as shown in fig. 1, the material blocking beam 100 of the present embodiment includes a material blocking plate 110, a rectangular steel pipe 120, and a stud 130. The front side of the baffle plate 110 has a baffle surface, two ends of the rear side of the baffle plate are respectively provided with a connecting plate 111, and screw holes corresponding to the waist-shaped holes 312 on the connecting plates 111 are formed on the connecting plates 111, so that the connecting plates 111 of the baffle cross beam 100 and the connecting plates 311 of the hanging frame 310 can be connected into a whole through bolts. The rectangular steel pipe 120 is welded at the upper side of the striker plate 110 near the rear edge thereof and extends to both ends thereof in the length direction of the striker plate 110, reinforcing the striker plate 110, and securing structural strength. Meanwhile, two vertical notches 114 are symmetrically formed in the middle of the rear side of the material blocking beam 100 towards the position close to the connecting plate 111, the notches 114 penetrate through the rectangular steel pipe 120 and the material blocking plate 110 in the up-down direction, the notches 114 extend forward to the middle of the material blocking plate 110 and are terminated at termination holes 113 formed in the middle of the material blocking plate 110 in the up-down direction, and the notch 114 can be prevented from being continuously torn under stress to cause the breakage of the material blocking beam 100. A locking block 112 is welded on each of the rectangular steel pipes 120 at two sides of the notch 114, and the two locking blocks 112 are provided with locking holes which are coaxial and penetrate along the left-right direction; the studs 130 pass through the locking holes of the two locking blocks 112, and nuts are mounted on the studs 130 at both sides of each locking block 112. In this structure, the flatness of the material blocking surface of the material blocking cross beam 100 can be adjusted by adjusting the stud 130, namely, the opening of the notch 114 is slightly adjusted by screwing the nut on the stud 130 to squeeze the locking block 112, so as to achieve the flatness adjustment of the material blocking surface.
Example 3
As shown in fig. 11, the present embodiment provides a plate shearing machine including an upper blade carrier 400 and a lifting type rear dam device of the plate shearing machine of embodiment 2. Wherein, two hanging frames 310 in the two groups of material blocking lifting assemblies 300 are connected with two ends of the material blocking cross beam 100; the housings 210 of both sets of stop drive mechanisms 200 are mounted to the upper blade carrier 400 on the rear side of the upper blade of the bending machine. Meanwhile, a striker is installed at the left or right side of the hanger 310, and a travel switch is installed at a limit position of the rearward movement of the hanger 310 on the same side of the housing 210.
The lifting operation of the material blocking cross beam 100 is realized by adopting the plate shearing machine as follows:
when the material blocking cross beam 100 needs to be lifted, the material blocking driving mechanism 200 drives the sliding seat 240 to move backwards and drives the hanging frame 310 of the material blocking lifting assembly 300; when the roller 330 contacts with the pinch roller inclined surface 321 of the inclined plate 320, the sliding seat 240 continues to move backwards, the inclined plate 320 has a force perpendicular to the pinch roller inclined surface 321 on the rear end of the hanger 310 through the roller 330, so that the hanger 310 rotates around the hanger shaft 340, and the front end of the hanger 310 drives the material blocking cross beam 100 to lift; when the hanger 310 moves back to the limit position, the lifting stop beam 100 rises to the highest point, the collision block touches the travel switch, an electric signal is generated and transmitted to the control system, and the motor is controlled to stop acting, so that the lifting operation is completed.
When the material blocking cross beam 100 needs to be put down, the material blocking driving mechanism 200 drives the sliding seat 240 to move forwards and drives the hanging frame 310 of the material blocking lifting assembly 300, the hanging frame 310 reverses under the self weight of the material blocking cross beam 100, and the material blocking cross beam 100 starts to descend; when the roller 330 is separated from the pinch roller inclined surface 321 of the inclined plate 320, the material blocking beam 100 descends to the lowest position, and the set screw 361 on the limiting block 360 abuts against the positioning surface 351 of the hanger swivel base 350 to limit the material blocking beam 100.
Therefore, after the lifting type rear material blocking device is installed on the plate shearing machine in the embodiment, the lifting operation of the material blocking cross beam 100 can be conveniently realized, and the plate shearing machine is suitable for shearing and processing of ultra-long plates.
The examples of the present invention are merely for describing the preferred embodiments of the present invention, and are not intended to limit the spirit and scope of the present invention, and those skilled in the art should make various changes and modifications to the technical solution of the present invention without departing from the spirit of the present invention.
Claims (6)
1. A lifting type rear stop device of a plate shearing machine comprises a stop beam (100) and a stop driving mechanism (200); the material blocking driving mechanism (200) is used for driving the material blocking cross beam (100) to feed along the material blocking direction and comprises a shell (210) and a sliding seat (240), and is characterized in that: the device also comprises a material blocking lifting assembly (300); the material blocking lifting assembly (300) comprises a hanging frame (310), a slope plate (320) and rollers (330); the front end of the hanging frame (310) is connected with a material blocking cross beam (100), the rear end of the hanging frame is provided with the roller (330), and the middle part of the hanging frame is rotatably connected with the sliding seat (240) through a hanging frame shaft (340); the slope plate (320) is installed at the end of the housing (210) and has a pinch roller slope (321) facing the roller (330); when the material blocking cross beam (100) moves backwards to be close to the tail end of the shell (210) under the action of the material blocking driving mechanism (200), the roller (330) contacts and presses the pinch roller inclined surface (321) of the inclined plate (320) to enable the hanging frame (310) to rotate around the hanging frame shaft (340), and the front end of the hanging frame (310) drives the material blocking cross beam (100) to be lifted;
the front end of the hanging frame (310) is provided with a connecting plate (311) extending in the left-right direction, a row of vertical waist-shaped holes (312) are formed in the connecting plate (311), and the hanging frame (310) is connected by screwing bolts penetrating through the waist-shaped holes (312) in the connecting plate (311) into the material blocking cross beam (100);
also included is a synchronous leveling assembly (260); the synchronous leveling assembly (260) comprises a nut seat (261), an adjusting bolt (262) and a locking screw (263); a screw (220) arranged along the front-rear direction is arranged in the shell (210), and the screw (220) is matched with a screw nut (250); the screw nut (250) is connected with one end of a nut seat (261), and an adjusting screw hole (264) parallel to the axis direction of the screw (220) is formed in the other end of the nut seat (261); the adjusting bolt (262) is screwed into the adjusting screw hole (264) from the front side of the nut seat (261), and the end face of the bolt head of the adjusting bolt is propped against the end face of the rear side of the sliding seat (240); the locking screw (263) is inserted into an adjusting screw hole (264) from the rear side of the nut seat (261), passes through the center hole of the adjusting screw (262) and is screwed into the screw hole on the rear side end surface of the sliding seat (240).
2. The lifting type rear blanking device of a plate shearing machine as claimed in claim 1, wherein: the hanging frame (310) comprises two hanging plates which are arranged side by side, and the idler wheel (330) is fixed between the two hanging plates through a pin; a hanging frame rotary seat (350) is arranged between the two hanging plates below the sliding seat (240), and the hanging frame (310) is arranged on the hanging frame rotary seat (350) through a hanging frame shaft (340).
3. The lifting type rear blanking device of a plate shearing machine as claimed in claim 2, wherein: the lower side of the rear end of the hanging frame swivel base (350) is provided with an inclined locating surface (351), a limiting block (360) is fixed between the two hanging plates below the locating surface (351), a screw hole formed in the limiting block (360) is internally screwed with a set screw (361), and the front end part of the set screw (361) extends out of the screw hole of the limiting block (360) and then can be propped against the locating surface (351) of the hanging frame swivel base (350).
4. A plate shearing machine lifting type rear dam device according to claim 1 or 2 or 3, characterized in that: foot plates (211) are symmetrically arranged on the left side and the right side close to the front end of the shell (210), and waist-shaped holes (212) along the front-back direction are formed in the two ends of the foot plates (211).
5. The lifting type rear blanking device of a plate shearing machine as claimed in claim 1, wherein: a gasket is arranged between the head end of the locking screw (263) and the rear end surface of the nut seat (261).
6. Plate shearing machine, including last knife rest (400), its characterized in that: the lifting type rear material blocking device of the plate shearing machine is characterized by further comprising a lifting type rear material blocking device of the plate shearing machine according to any one of claims 1 to 5; the material blocking driving mechanism (200) and the material blocking lifting assembly (300) are correspondingly provided with two groups, and two hanging frames (310) are connected with two ends of the material blocking cross beam (100); the shells (210) of the two groups of material blocking driving mechanisms (200) are mounted on an upper knife rest (400) at the rear side of an upper knife blade of the bending machine.
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| CN201811031088.8A CN108941755B (en) | 2018-09-05 | 2018-09-05 | Plate shearing machine and lifting type rear material blocking device thereof |
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| CN201811031088.8A CN108941755B (en) | 2018-09-05 | 2018-09-05 | Plate shearing machine and lifting type rear material blocking device thereof |
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| CN108941755B true CN108941755B (en) | 2023-09-22 |
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Denomination of invention: A shearing machine and its lifting type rear material blocking device Granted publication date: 20230922 Pledgee: Dangtu County sub branch of China Post Savings Bank Co.,Ltd. Pledgor: ANHUI JACO NC MACHINE MANUFACTURING Co.,Ltd. Registration number: Y2024980013245 |