CN110253927B

CN110253927B - High-speed punch press

Info

Publication number: CN110253927B
Application number: CN201910693689.3A
Authority: CN
Inventors: 褚岳辉
Original assignee: Ningbo Goanwin Machinery Technology Co ltd
Current assignee: Ningbo Goanwin Machinery Technology Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2022-01-18
Anticipated expiration: 2039-07-30
Also published as: CN110253927A

Abstract

The invention discloses a high-speed punch press, which comprises a rack, a die holder, a flywheel, a crankshaft and a driving motor, wherein the driving motor is fixed with the rack, the crankshaft is rotationally arranged in the rack, the flywheel is rotationally sleeved at one end of the crankshaft, a clutch component is arranged at one end of the crankshaft, a brake component is arranged at the other end of the crankshaft, an upper die holder of the die holder is connected with the crankshaft through a rotating connecting rod, the upper die holder is vertically and movably arranged in the rack, a sliding component is also arranged between the rack and the upper die holder, and the sliding component is abutted against the rack and the upper die holder to limit the upper die holder to move only in the vertical direction; the advantage is that upper die base and stand support still are provided with the slip subassembly, and the axis of rotation in the slip subassembly offsets with upper die base, stand homogeneous phase, and the slip subassembly still can reduce the coefficient of friction between stand and the upper die base through the axis of rotation when carrying on spacingly to the upper die base, reduces the stability when friction increases the upper die base and removes, reduces the upper die base at the vertical card pause phenomenon that appears with south-east in-process.

Description

High-speed punch press

Technical Field

The invention relates to the field of punching machines, in particular to a high-speed punching machine.

Background

The high-speed punch is widely applied to production and manufacturing in the fields of precision electronics, communication, household appliances, automobile parts and the like. The design principle of the high-speed punch press is that circular motion is converted into linear motion, the high-speed punch press mainly comprises a driving motor, a clutch assembly, a brake assembly, a flywheel, a crankshaft and the like, the driving motor drives the flywheel to rotate, the flywheel drives the crankshaft to rotate through the clutch assembly, and a connecting rod connected with the crankshaft drives an upper die base of a die base to perform linear motion to complete punching action. The existing high-speed punch press enables the crankshaft to synchronously rotate at high speed due to the high-speed rotation of the driving motor, so that the upper die base moves back and forth at high speed linearly. In order to ensure the vertical motion of the upper die base in the punch press, 4 limiting columns are arranged in the existing punch press, corresponding limiting holes are formed in four corners of the upper die base, and the limiting columns are sleeved in the corresponding limiting holes to limit, so that the upper die base can only vertically move. Because the upper die base needs to keep steady in the removal process to make the stamping workpiece of punching press manufacturing up to standard, consequently need accurate strict cooperation between spacing post and the spacing hole and also have certain the going to spacing surperficial smoothness simultaneously, prevent that the upper die base from rocking and card pause. Therefore, the requirement on the production process of the limiting column is high, so that the upper production cost of the limiting column is high; and the spacing post need restrict the rocking of upper die base and to other direction squints, consequently has higher requirement to the rigidity of spacing post when producing spacing post to prevent that the upper die base from making spacing post warp when the punching press.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provides a high-speed punch press which can keep an upper die base moving up and down, has simple structure, occupies small space and has lower production cost.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a high-speed punch press, includes frame, mould seat, flywheel, bent axle and is used for driving flywheel pivoted driving motor, states driving motor with the frame fixed mutually, the bent axle rotate to be established the frame in and the both ends of bent axle stretch out the frame, the flywheel rotate the cover and establish the one end of bent axle, the one end of bent axle be provided with the separation and reunion subassembly, the other end of bent axle be provided with brake assembly, the upper die base of mould seat through rotate the connecting rod with the bent axle be connected, the vertical activity of upper die base set up the frame in, the frame with the upper die base between still be provided with the slip subassembly, the slip subassembly with frame, upper die base support mutually and be used for the restriction the upper die base only can move in vertical direction.

Preferably, the driving motor and the flywheel are located at the same end of the crankshaft, and the driving motor drives the flywheel through a belt.

Preferably, the clutch assembly comprises a clutch piston seat, a clutch piston and a clutch plate which are coaxially arranged with the flywheel and are sequentially arranged, the clutch piston is fixed with the flywheel, the clutch plate is fixed with the end part of the crankshaft, the clutch plate is rotatably arranged between the flywheel and the clutch piston, and the clutch piston is axially movably arranged in the piston seat.

Preferably, the brake subassembly include brake piston seat, brake piston, brake block and fixing base, brake piston, fixing base, frame arrange in proper order fixedly, the brake block with the other end of bent axle fixed mutually, the brake piston be fixed with the conduction ring that is used for compressing tightly the brake block through the round pin axle that runs through brake piston seat, the axial activity of transmission ring set up between brake piston seat and brake block.

Preferably, the rack in vertical activity be provided with the counter weight seat, the fixed axle that is provided with in upper end of counter weight seat, fixed axle activity cover be equipped with the counter weight connecting rod, the rotatable cover of the other end of counter weight connecting rod establish the middle part of bent axle.

Preferably, the middle part of the crankshaft is symmetrically provided with 2 rotating connecting rods, the rotating connecting rods can be rotatably sleeved in the middle part of the crankshaft, and the other ends of the rotating connecting rods are fixed with the upper die base.

Preferably, the high-speed lathe still include stroke adjustment mechanism, the rotation connecting rod include ball and connect pole and mounting, ball connecting rod cover establish the middle part of bent axle, ball connecting rod ball connect and have a rotation piece, rotation piece with mounting threaded connection, the lower extreme of mounting with last die holder fixed mutually, stroke adjustment mechanism include the worm and be used for driving worm pivoted adjusting motor, adjusting motor in the frame fixed mutually, the worm pass through the bearing frame setting the inside of frame, rotation piece fixed be provided with worm matched with worm wheel.

Preferably, the frame include frame body and 4 integrative stands that set up terminal surface under the frame body, the slip subassembly include axis of rotation and holder, a plurality of the axis of rotation arrange in proper order and rotatable setting be in the holder in, upper die base and 4 the stand between all be provided with the axis of rotation, just the axis of rotation with stand, upper die base offset.

Preferably, the part of the upright column, which is matched with the sliding assembly, is fixedly provided with a fixed rack, the retainer is fixedly provided with a fixed block, a rotatable gear is arranged in the fixed block, the fixed rack is meshed with a corresponding gear, the upper die base is fixedly provided with a movable rack, the movable rack is meshed with a corresponding gear, and the matched fixed rack and the matched movable rack are distributed on two sides of the corresponding gear.

Preferably, the upper die base be provided with stand matched with spout, the two sides mutually perpendicular of spout, just the medial surface of spout all with the rolling axis laminating.

Compared with the prior art, the invention has the advantages that the brake assembly and the clutch assembly are respectively arranged at the two ends of the crankshaft, the stress of the crankshaft can be balanced, the traditional installation mode that the brake assembly and the clutch assembly are installed at the same end part of the crankshaft is avoided, when the brake assembly and the clutch assembly are installed at the same end part of the crankshaft, the high-speed rotation of the crankshaft can lead the stress at the two ends of the crankshaft to be uneven and generate vibration, so that the vibration of an upper die base is caused, the impact effect can be influenced when the die base vibrates, and the qualification rate of punched products is reduced. Meanwhile, the counterweight seat is arranged in the rack, the balance of the crankshaft can be better increased due to the counterweight seat, and the crankshaft can be more stable in the rotating process. And last die holder and stand support still are provided with the slip subassembly, and the axis of rotation in the slip subassembly offsets with upper die holder, stand homogeneous phase, and the slip subassembly still can reduce the coefficient of friction between stand and the upper die holder through the axis of rotation when spacing to the upper die holder to reduce the stability when friction increases the upper die holder and remove, reduce the upper die holder at vertical card pause phenomenon with south-east in-process appearance.

Drawings

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

FIG. 2 is a rear view of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along A-A of FIG. 2;

FIG. 4 is a schematic cross-sectional view taken along the centerline of the crankshaft of FIG. 2;

FIG. 5 is a schematic view of the position of the sliding assembly of the present invention;

FIG. 6 is a schematic view of the position of the pivot link of the present invention;

FIG. 7 is a schematic cross-sectional view of FIG. 6;

FIG. 8 is a schematic view of the counterweight housing of the present invention;

fig. 9 is a schematic cross-sectional structure of fig. 8.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The utility model provides a high-speed punch press, which comprises a frame 1, the die holder, flywheel 10, bent axle 4 and be used for driving flywheel 10 pivoted driving motor 12, frame 1 includes frame body 1.1 and 4 integrative stand 1.2 that set up terminal surface under frame body 1.1, driving motor 12 is fixed mutually with frame body 1.1, bent axle 4 rotates to be established in frame body 1.1 and bent axle 4's both ends stretch out frame body 1.1, flywheel 10 rotates the cover through the bearing and establishes the one end at bent axle 4, driving motor 12, flywheel 10 is located bent axle 4 same one end, and driving motor 12 passes through belt drive flywheel 10.

One end of the crankshaft 4 is provided with a clutch assembly 6, the other end of the crankshaft 4 is provided with a brake assembly 7, the clutch assembly 6 comprises a clutch piston seat 6.1, a clutch piston 6.2 and a clutch plate 6.3 which are coaxially arranged with the flywheel 10 and are sequentially arranged, the clutch piston 6.2 is fixed with the flywheel 10, the clutch plate 6.3 is fixed with the end part of the crankshaft 4, the clutch plate 6.3 is rotatably arranged between the flywheel 10 and the clutch piston 6.2, and the clutch piston 6.2 is axially movably arranged in the piston seat; the brake component 7 comprises a brake piston seat 7.1, a brake piston 7.2, a brake pad 7.3 and a fixed seat 7.5, the brake piston 7.2, the fixed seat 7.5 and the frame body 1.1 are sequentially arranged and fixed, the brake pad 7.3 is fixed with the other end of the crankshaft 4, the brake piston 7.2 is fixed with a conduction ring 7.4 for pressing the brake pad 7.3 through a pin shaft penetrating through the brake piston seat 7.1, and the transmission ring is axially movably arranged between the brake piston seat 7.1 and the brake pad 7.3.

A balance weight seat 8.1 is vertically and movably arranged in the rack body 1.1, a fixed shaft 8.2 is fixedly arranged at the upper end of the balance weight seat 8.1, a balance weight connecting rod 8.3 is movably sleeved on the fixed shaft 8.2, and the other end of the balance weight connecting rod 8.3 is rotatably sleeved at the middle part of the crankshaft 4.

The middle part symmetry of bent axle 4 is provided with 2 and rotates connecting

rod

3, 2 rotate the rotatable cover of connecting rod 3 and establish the middle part at bent axle 4, the other end and the upper die base 9 of rotating connecting rod 3 are fixed mutually, the vertical activity of upper die base 9 sets up in frame body 1.1 and upper die base 9 is provided with spout 4.1 with stand 1.2 matched with, spout 4.1's two sides mutually perpendicular, still be provided with the slip subassembly between stand 1.2 and the upper die base 9, slip subassembly and stand 1.2, upper die base 9 offsets and the medial surface of spout 4.1 all laminates with axis of rotation 2.1 mutually, thereby restrict upper die base 9 and can only remove in the vertical direction in stand 1.2.

The sliding assembly comprises a rotating shaft 2.1 and a retainer 2.2, the rotating shafts 2.1 are sequentially arranged and rotatably arranged in the retainer 2.2, the rotating shafts 2.1 are arranged between the upper die holder 9 and the 4 upright posts 1.2, and the rotating shafts 2.1 are abutted to the upright posts 1.2 and the upper die holder 9. The part of the upright column 1.2 matched with the sliding assembly is fixedly provided with a fixed rack 1.3, the retainer 2.2 is fixedly provided with a fixed block 2.3, a rotatable gear is arranged in the fixed block 2.3, the fixed rack 1.3 is meshed with a corresponding gear, the upper die base 9 is fixedly provided with a movable rack 4.2, the movable rack 4.2 is meshed with a corresponding gear, and the matched fixed rack 1.3 and the matched movable rack 4.2 are distributed on two sides of the corresponding gear.

The rotating connecting rod 3 comprises a ball connecting rod 3.1 and a fixing part 3.3, the ball connecting rod 3.1 is sleeved at the middle part of the crankshaft 4, a rotating part 3.2 is connected with the ball connecting rod 3.1 in a ball joint mode, the rotating part 3.2 is in threaded connection with the fixing part 3.3, the lower end of the fixing part 3.3 is fixed with an upper die base 9, the high-speed punch is further provided with a stroke adjusting mechanism, the stroke adjusting mechanism comprises a worm 5.2 and an adjusting motor 5.1 used for driving the worm 5.2 to rotate, the adjusting motor 5.1 is fixed with a frame body 1.1, the worm 5.2 is arranged inside the frame 1 through the bearing base 5.4, the rotating part 3.2 is fixedly provided with a worm wheel matched with the worm 5.2, wherein, 2 hollow limiting pieces 11 corresponding to the rotating connecting rods 3 are fixedly arranged below the frame body 1.1, the rotating piece 3.2 is rotatably arranged inside the hollow limiting pieces 11, meanwhile, two ends of the driving worm 5.2 respectively extend into the corresponding limiting pieces 11, so that the threads at two ends of the driving worm 5.2 are meshed with the corresponding worm wheels; when the moving stroke of the upper die holder 9 needs to be increased, the motor 5.1 is adjusted to rotate positively, so that the worm 5.2 connected with the motor rotates positively, two ends of the worm 5.2 extend into the limiting parts 11 on two sides respectively and are meshed with the corresponding turbines 5.3, so that the turbines 5.3 rotate positively, and because the upper parts of the fixing parts 3.3 are connected with the rotating parts 3.2 through threads and the lower ends of the fixing parts 3.3 are fixed with the upper die holder 9, when the turbines 5.3 rotate positively, the rotating parts 3.2 fixed with the turbines 5.3 are driven to rotate positively, so that the rotating parts 3.2 and the fixing parts 3.3 rotate relatively, and the fixing parts 3.3 retract into the limiting parts 11 upwards to increase the stroke distance between the upper die holder 9 and the lower die holder 13. When the moving stroke of the upper die holder 9 needs to be reduced, the adjusting motor 5.1 rotates reversely, so that the worm 5.2 connected with the adjusting motor rotates reversely, two ends of the worm 5.2 extend into the limiting parts 11 on two sides respectively and are meshed with the corresponding turbines 5.3, so that the turbines 5.3 rotate reversely, because the upper parts of the fixing parts 3.3 are connected with the rotating parts 3.2 through threads, and the lower ends of the fixing parts 3.3 are fixed with the upper die holder 9, when the turbines 5.3 rotate reversely, the rotating parts 3.2 fixed with the turbines 5.3 are driven to rotate reversely, so that the rotating parts 3.2 and the fixing parts 3.3 rotate relatively, and the fixing parts 3.3 extend out of the limiting parts 11 downwards to reduce the stroke distance between the upper die holder 9 and the lower die holder 13.

The working process of the invention is as follows: a driving motor 12 fixed on a rack body 1.1 drives a flywheel 10 to rotate through a belt, and a clutch piston 6.2 in a clutch piston seat 6.1 presses a clutch plate 6.3 to enable the clutch plate 6.3 and the flywheel 10 to synchronously rotate; when the counterweight connecting rod 8.3 rotates along the motion path of the crankshaft 4, the fixed shaft 8.2 connected with the other end of the counterweight connecting rod 8.3 enables the counterweight seat 8.1 to synchronously move, so that the counterweight seat 8.1 vertically moves along with the crankshaft 4 under the constraint and limit of the rack, thereby realizing the balance of the crankshaft 4 and the rack 1 and reducing the vibration when the crankshaft 4 rotates at a high speed; the utility model discloses a synchronous drive 2 ball connecting rod 3.1 motion that rotate connecting rod 3 in the frame 1 when bent axle 4 rotates, the upper portion of ball connecting rod 3.1 is circular motion along with bent axle 4, the lower extreme of ball connecting rod 3.1 with rotate 3.2 ball joint, because it sets up in locating part 11 to rotate the vertical activity of 3.2, consequently under the transmission of ball connecting rod 3.1, it moves along vertical direction at spacing inside to rotate 3.2, make simultaneously and rotate 3.3 synchronous vertical movement that carries on of 3.2 threaded connection's mounting, and 2 the lower extreme of mounting 3.3 all is fixed mutually with upper die base 9 and upper die base 9 can only move along vertical direction under stand 1.2 and sliding component's effect, consequently make upper die base 9 along with the rotation of bent axle 4 and along vertical reciprocating movement under the effect of rotating connecting rod 3. When the punch needs to stop, the brake piston 7.2 moves in the phase to enable the transmission ring 7.4 to press the brake pad 7.3, so that the transmission ring 7.4, the brake pad 7.3 and the fixing seat 7.5 are tightly attached and fixed, the brake pad 7.3 is fixed with the crankshaft 4 to enable the crankshaft 4 to stop rotating, meanwhile, the clutch piston 6.2 of the clutch assembly 6 stops pressing the clutch plate 6.3, the clutch plate 6.3 is separated from the clutch piston 6.2, the driving motor 12 drives the flywheel 10 to rotate freely, and the flywheel 10 stops driving the crankshaft 4 to rotate due to the separation of the clutch plate 6.3 and the clutch piston 6.2.

When upper die base 9 vertical movement under the effect of rotation connecting rod 3, axis of rotation 2.1 that sets up between

upper die base

9 and 4 stands 1.2 holds and rotates along with upper die base 9's removal to the realization plays the effect that reduces friction when carrying on spacingly to upper die base 9 and makes upper die base 9 can be steady rapid slip between 4 stands 1.2, and reduces the phenomenon that the card pause appears in upper die base 9. The plurality of rotating shafts 2.1 are sequentially arranged and rotatably arranged in the retainer 2.2, the thickness of the retainer 2.2 is smaller than the diameter of the rotating shafts 2.1, so that the rotating shafts 2.1 can be abutted against the upright posts 1.2 and the sliding chutes 4.1 of the upper die holder 9, the fixed blocks 2.3 fixedly arranged on the retainer 2.2 are rotatably provided with gears, meanwhile, the upright posts 1.2 are provided with fixed racks 1.3 corresponding to the upright posts, the upper die holder 9 is fixedly provided with moving racks 4.2 corresponding to the upper die holder 9, the matched fixed racks 1.3 and the moving racks 4.2 are distributed at two sides of the corresponding gears, and the fixed racks 1.3 and the moving racks 4.2 are both meshed with the gears, therefore, when the upper die holder 9 moves, the moving racks 4.2 and the fixed blocks 2.3 are synchronously moved vertically along with the vertical movement of the moving racks 4.2, so that the plurality of rotating shafts 2.1 in the retainer 2.2 synchronously move along with the movement of the upper die holder 9 in the vertical direction, prevent that axis of rotation 2.1 slippage increases sliding assembly's life.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A high-speed punch press comprises a frame, a die holder, a flywheel, a crankshaft and a driving motor used for driving the flywheel to rotate, wherein the driving motor is fixed with the frame, the crankshaft is arranged in the frame in a rotating way, the two ends of the crankshaft extend out of the frame, the flywheel is sleeved at one end of the crankshaft in a rotating way, one end of the crankshaft is provided with a clutch component, the other end of the crankshaft is provided with a brake component, an upper die holder of the die holder is connected with the crankshaft through a rotating connecting rod, the vertical activity of the upper die holder is arranged in the frame, the high-speed punch press is characterized in that a sliding component is further arranged between the frame and the upper die holder, the frame comprises a frame body and 4 stand columns which are integrally arranged on the lower end face of the frame body, and the sliding component comprises a rotating shaft and a retainer, the rotating shafts are sequentially arranged and rotatably arranged in the retainer, the rotating shafts are arranged between the upper die base and the 4 upright posts, the rotating shafts are abutted against the upright posts and the upper die base to limit the upper die base to only move in the vertical direction, fixed racks are fixedly arranged on the parts of the upright posts, which are matched with the sliding components, fixed blocks are fixedly arranged on the retainer, rotatable gears are arranged in the fixed blocks, the fixed racks are meshed with the corresponding gears, the upper die base is fixedly provided with movable racks, the movable racks are meshed with the corresponding gears, the matched fixed racks and the movable racks are distributed on two sides of the corresponding gears, the upper die base is provided with a sliding chute matched with the upright posts, and two sides of the sliding chute are mutually perpendicular, and the inner side surfaces of the sliding grooves are attached to the rotating shaft.

2. A high speed punch press as claimed in claim 1, wherein said drive motor and said flywheel are located at the same end of said crankshaft, and said drive motor drives said flywheel via a belt.

3. The high-speed punch press according to claim 1, wherein the clutch assembly comprises a clutch piston seat, a clutch piston and a clutch plate which are coaxially arranged with the flywheel and are sequentially arranged, the clutch piston is fixed with the flywheel, the clutch plate is fixed with the end of the crankshaft, the clutch plate is rotatably arranged between the flywheel and the clutch piston, and the clutch piston is axially movably arranged in the piston seat.

4. The high-speed punch press according to claim 1, wherein the brake assembly comprises a brake piston seat, a brake piston, a brake pad and a fixed seat, the brake piston, the fixed seat and the frame are sequentially arranged and fixed, the brake pad is fixed to the other end of the crankshaft, a conductive ring for pressing the brake pad is fixed to the brake piston through a pin shaft penetrating through the brake piston seat, and the conductive ring is axially movably arranged between the brake piston seat and the brake pad.

5. The high-speed punch press according to claim 1, wherein a counterweight seat is vertically movably disposed in the frame, a fixed shaft is fixedly disposed at an upper end of the counterweight seat, a counterweight connecting rod is movably sleeved on the fixed shaft, and the other end of the counterweight connecting rod is rotatably sleeved on the middle portion of the crankshaft.

6. The high-speed punch press according to claim 1, wherein 2 rotating connecting rods are symmetrically arranged in the middle of the crankshaft, the rotating connecting rods are rotatably sleeved in the middle of the crankshaft, and the other ends of the rotating connecting rods are fixed to the upper die base.

7. The high-speed punch press according to claim 6, further comprising a stroke adjusting mechanism, wherein the rotating link comprises a ball connecting rod and a fixing member, the ball connecting rod is sleeved in the middle of the crankshaft, the ball connecting rod is connected with a rotating member in a ball joint mode, the rotating member is in threaded connection with the fixing member, the lower end of the fixing member is fixed to the upper die base, the stroke adjusting mechanism comprises a worm and an adjusting motor used for driving the worm to rotate, the adjusting motor is fixed to the frame, the worm is arranged inside the frame through the bearing base, and the rotating member is fixedly provided with a worm wheel matched with the worm.