CN111391385A - Pull-down slider mechanism with dynamic balancing device - Google Patents

Pull-down slider mechanism with dynamic balancing device Download PDF

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Publication number
CN111391385A
CN111391385A CN202010384920.3A CN202010384920A CN111391385A CN 111391385 A CN111391385 A CN 111391385A CN 202010384920 A CN202010384920 A CN 202010384920A CN 111391385 A CN111391385 A CN 111391385A
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CN
China
Prior art keywords
connecting rod
sliding block
dynamic balance
pull
crankshaft
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010384920.3A
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Chinese (zh)
Inventor
周志龙
熊小英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Ruili Pml Precision Mechanism Ltd
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Dongguan Ruili Pml Precision Mechanism Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Dongguan Ruili Pml Precision Mechanism Ltd filed Critical Dongguan Ruili Pml Precision Mechanism Ltd
Priority to CN202010384920.3A priority Critical patent/CN111391385A/en
Publication of CN111391385A publication Critical patent/CN111391385A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B1/00Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/26Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by cams, eccentrics, or cranks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0064Counterbalancing means for movable press elements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Abstract

The invention discloses a pull-down slider mechanism with a dynamic balance device, which comprises a lower slider, a lower slider guide post, a steel pipe main shaft, a pull rod, an upper slider, a crankshaft, a main connecting rod, an auxiliary connecting rod, an adjusting screw rod and a dynamic balance block, wherein the lower slider is fixed on the lower slider guide post; the invention is technically characterized in that: the bent axle passes through the motor, the flywheel provides the turning force and drives lower slider up-and-down motion, lower slider passes through the pull rod and drives slider synchronous motion, make the action of punching press product be realized to the upper sliding block, between lower slider and upper sliding block, the top of bent axle is equipped with the balancing piece that moves, when the bent axle drove the slider punching press, can drive the balancing piece that moves in opposite direction and offset the punching press and to the reaction force of board, the board is more stable when this technique has realized high-speed punching press, the punching press product can not polluted by the greasy dirt of below, can the punching press product that requires high to.

Description

Pull-down slider mechanism with dynamic balancing device
Technical Field
The invention relates to the technical field of high-speed precision punching machines, in particular to a pull-down sliding block mechanism with a dynamic balance device.
Background
The punch press is widely applied to punching and forming of electronics, communication, computers, household appliances, furniture, vehicles, hardware parts and the like, the design principle is that circular motion is converted into linear motion, a main motor drives a flywheel, a crankshaft (or an eccentric gear), a connecting rod and the like to rotate to achieve the linear motion of a sliding block, the traditional punch press cannot solve the problems that oil stains on a machine table pollute a processed product during processing, the phenomena of vibration and displacement caused by impact of reaction force on the machine table during high-speed processing cannot be solved, and the working rotating speed is forced to be generally not more than 300 revolutions per minute;
aiming at the problems, a precise and high-speed pull-down punch press is designed, linear motion of a lower sliding block is achieved by arranging an upper sliding block, a lower sliding block, a crankshaft and a main connecting rod, the lower sliding block is linked with the upper sliding block to synchronously move to punch a product through a pull rod, the machine table can vibrate under the action of a reaction force when the product is punched, the machine table can shift when the product is punched at a high speed, dynamic balance can be set to offset impact force for preventing vibration and displacement of the machine table, and the machine table can achieve high-speed punching work at 800 revolutions per minute.
Disclosure of Invention
The invention aims to provide a pull-down sliding block mechanism with a dynamic balance device, which aims to solve the problems of high-speed running, shaking and displacement and oil pollution of products in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a pull-down slider mechanism with a dynamic balance device comprises a lower slider, a lower slider guide post, a steel pipe main shaft, a pull rod, an upper slider, a crankshaft, a main connecting rod, an auxiliary connecting rod, an adjusting screw rod and a dynamic balance block;
the crankshaft is in a long column shape, two ends of the crankshaft are respectively connected with two side walls of the punching machine frame through bearings, one end of the crankshaft extends outwards from a connecting part to be fixedly connected with the flywheel, and the middle part of the crankshaft is provided with a main connecting rod eccentric shaft and an auxiliary connecting rod eccentric shaft;
the main connecting rod eccentric shaft and the auxiliary connecting rod eccentric shaft are eccentric circular rings fixed on the crankshaft, one end of the main connecting rod is a large-head circular ring cylinder, the other end of the main connecting rod is a small-head circular ring cylinder, a hollow ring in the large-head circular ring cylinder is sleeved on the main connecting rod eccentric shaft, one end of the auxiliary connecting rod is a circular ring cylinder, and a hollow ring in the circular ring cylinder is sleeved on the auxiliary connecting rod eccentric shaft;
the small-end circular cylinder at the other end of the main connecting rod is connected with an adjusting screw rod, a bearing is arranged at the connecting position and can rotate, the other end of the adjusting screw rod faces downwards and is fixedly connected with a steel ring main shaft, the steel ring main shaft is fixedly arranged in the middle of a lower sliding block, a guide hole is also formed in the lower sliding block and is used for allowing a lower sliding block guide post to pass through, one end of the lower sliding block guide post is fixed on a base of the punching machine, and a pull rod is arranged at the edge of the lower sliding block and vertically faces upwards and is;
the other end of the auxiliary connecting rod is fixedly connected with a dynamic balance block, the dynamic balance block is arranged on the upper side of the crankshaft, and the dynamic balance block is arranged on the lower side of the lower sliding block.
Preferably, the lower sliding block is in a special-shaped shape with four sides and is positioned at the lower side, the upper sliding block is in a quadrilateral shape and is positioned at the upper side, one end of each of the pull rods is fixedly connected to the lower sliding block, the other end of each of the pull rods is fixed to the upper sliding block, and an inner side space is supported between the lower sliding block and the upper sliding block.
Preferably, the main connecting rod eccentric shaft is arranged in the middle of the crankshaft, and the auxiliary connecting rod eccentric shafts are respectively arranged on two sides of the main connecting rod eccentric shaft.
Preferably, the front side and the rear side of the dynamic balance block are respectively provided with a dynamic balance block in a fixed locking manner, the left side and the right side of the dynamic balance block are respectively provided with dynamic balance counterweight column calipers, the dynamic balance counterweight column calipers can be clamped and fixed with dynamic balance counterweight columns, and the configuration columns can be replaced with different specifications.
Preferably, the connecting part of the pull rod, the upper sliding block and the lower sliding block is fastened and connected through screws.
Compared with the prior art, the invention has the beneficial effects that:
1. the lower slide block is connected with the driving mechanism, the upper slide block is connected with the lower slide block through the pull rod, the lower slide block pulls the upper slide block to press a product downwards, and the upper slide block processes the product on the upper layer, so that the pollution of oil stains in the working of bearings such as a crankshaft, a connecting rod and the like on the lower part to the processed product is avoided;
2. the motor and flywheel drive the bent axle, the main connecting rod, lower slider, when the top shoe dashes the punching press product down, the board is because reaction force takes place vibrations, this technique is connected dynamic balance device through the eccentric shaft that sets up the opposite direction with the main connecting rod in bent axle top, form two upper and lower reverse acting force when the bent axle rotates, secondly the dynamic balance piece is equipped with the balancing weight, different weight specifications can be installed to this balancing weight, the stability that the board can be adjusted to the weight of adjusting the dynamic balance balancing weight as required when punching press product.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of a slider structure according to the present invention;
FIG. 3 is a schematic view of the dynamic balance structure of the present invention
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a pull-down slider mechanism with a dynamic balance device comprises a lower slider 1, a lower slider guide post 4, a steel pipe main shaft 11, a pull rod 3, a pull rod nut 31, an upper slider 2, a crankshaft 6, a main connecting rod eccentric shaft 61, an auxiliary main connecting rod eccentric shaft 62, a main connecting rod 7, an auxiliary connecting rod 55, an adjusting screw 8, a dynamic balance block 51, a dynamic balance balancing weight block 52, a dynamic balance balancing weight post 54 and a dynamic balance balancing weight post caliper 53;
the crankshaft 6 is in a long column shape, two ends of the crankshaft are respectively connected with two side walls of a rack of the punching machine through bearings, one end of the crankshaft extends outwards from a connecting part and is fixedly connected with a flywheel, and the middle part of the crankshaft 6 is provided with a main connecting rod eccentric shaft 61 and an auxiliary connecting rod eccentric shaft 62;
the main connecting rod eccentric shaft 61 and the auxiliary connecting rod eccentric shaft 62 are eccentric circular rings fixed on the crankshaft 6, one end of the main connecting rod 7 is a large-head circular ring cylinder, the other end of the main connecting rod 7 is a small-head circular ring cylinder, a hollow ring in the large-head circular ring cylinder is sleeved on the main connecting rod eccentric shaft 61, one end of the auxiliary connecting rod 55 is a circular ring cylinder, and a hollow ring in the circular ring cylinder is sleeved on the auxiliary connecting rod eccentric shaft 62;
a small-end circular cylinder at the other end of the main connecting rod 7 is connected with an adjusting screw 8, a bearing is arranged at the joint and can rotate, the other end of the adjusting screw 8 is downwards fixedly connected with a steel ring main shaft 11, the steel ring main shaft 11 is fixedly arranged in the middle of a lower sliding block 1, a guide hole is also formed in the lower sliding block 1 and used for allowing a lower sliding block guide post 4 to pass through, one end of the lower sliding block guide post 4 is fixed on a base of a punching machine, and a pull rod 4 is arranged at the corner of the lower sliding block 1, is vertical to the horizontal surface of the lower sliding block and is upwards fixed on;
the other end of the above secondary connecting rod 55 is fixedly connected with a dynamic balance weight 51, the dynamic balance weight 51 is arranged on the upper side of the crankshaft, and the dynamic balance weight 51 is arranged below the upper sliding block 2.
Further, the lower slide block 1 is in a lower side with a special-shaped four sides, the upper slide block 2 is in an upper side with a square shape, one end of each of the pull rods 3 is fixedly connected to the lower slide block 1, the other end of each of the pull rods is fixed to the upper slide block 2, and an inner space is supported between the lower slide block 1 and the upper slide block 2.
Further, the main connecting rod eccentric shaft 61 is arranged in the middle of the crankshaft 6, and the auxiliary connecting rod eccentric shafts 62 are respectively arranged on two sides of the main connecting rod eccentric shaft 61.
Further, the front side and the rear side of the dynamic balance block 51 are respectively and fixedly provided with a dynamic balance weight block 52, the left side and the right side of the dynamic balance block 51 are respectively provided with dynamic balance weight column calipers 53, the dynamic balance weight column calipers 53 can be clamped and fixedly provided with dynamic balance weight columns 54, and the dynamic balance weight columns 54 can be replaced by different weight specifications.
Furthermore, the connecting part of the pull rod 3, the upper slide block 2 and the lower slide block 1 is fastened and connected through a screw 31.
The working principle is as follows: the two ends of the crankshaft are connected with two side walls of a frame of the punching machine, a bearing is arranged at the connection position, the crankshaft can be stressed and supported on the side wall of the frame, the crankshaft can rotate, one section of the crankshaft extends outwards to be fixedly connected with the flywheel, the flywheel is driven by a motor to drive the crankshaft to move, the crankshaft drives a lower sliding block at the lower side to realize vertical linear motion through a main connecting rod eccentric shaft, a main connecting rod, an adjusting screw rod and a steel pipe main shaft, the lower sliding block is synchronously realized vertical linear motion through an upper sliding block at the upper layer of a pull rod belt, the crankshaft drives a sliding balance block at the upper part of the crankshaft to vertically linearly move through an auxiliary connecting rod eccentric shaft, the directions of eccentric axes of the main connecting rod eccentric shaft and the auxiliary connecting rod are opposite, when the crankshaft rotates, a sliding block device connected below the crankshaft and a sliding balance device connected above the crankshaft, consequently can not be contaminated by the punching press product, secondly can produce ascending reaction force to the punching machine during slider punching press product, the power of thrust offset board effort upwards is formed to the downstream of dynamic balance device this moment, stability is stronger when having ensured the high-speed punching press of punching machine, dynamic balance device still is equipped with balancing weight and counter weight post in addition, the weight of balancing weight and counter weight post can be adjusted, come according to the difference of the reaction force size of different punching press speed and punching pressure degree to the machine, the balancing weight and the counter weight post of different weight specifications are used in the adjustment.

Claims (5)

1. A pull-down slider mechanism with a dynamic balance device comprises a lower slider, a lower slider guide post, a steel pipe main shaft, a pull rod, an upper slider, a crankshaft, a main connecting rod, an auxiliary connecting rod, an adjusting screw rod and a dynamic balance block;
the crankshaft is in a long strip shape, two ends of the crankshaft are respectively connected with two side walls of the frame of the punching machine, a bearing is arranged at the connection position, one end of the crankshaft extends outwards from the connection position to be fixedly connected with the flywheel, and the middle part of the crankshaft is provided with a main connecting rod eccentric shaft and an auxiliary connecting rod eccentric shaft;
the main connecting rod eccentric shaft and the auxiliary connecting rod eccentric shaft are eccentric circular rings fixed on a crankshaft, one end of the main connecting rod is a large-head circular ring cylinder, the other end of the main connecting rod is a small-head circular ring cylinder, a hollow ring in the large-head circular ring cylinder is sleeved on the main connecting rod eccentric shaft, one end of the auxiliary connecting rod is a circular ring cylinder, and a hollow ring in the circular ring cylinder is sleeved on the auxiliary connecting rod eccentric shaft;
the small-end circular cylinder at the other end of the main connecting rod is connected with an adjusting screw rod, a bearing is arranged at the joint and can rotate, the other end of the adjusting screw rod faces downwards and is fixedly connected with a steel ring main shaft, the steel ring main shaft is fixedly arranged in the middle of a lower sliding block, a guide hole is further formed in the lower sliding block and is used for allowing a lower sliding block guide post to pass through, one end of the lower sliding block guide post is fixed on a base of a punching machine, and the lower sliding block is fixedly connected with an upper sliding block on the upper layer through a vertical upward pull rod;
the other end of the auxiliary connecting rod is fixedly connected with a dynamic balance block, the dynamic balance block is arranged on the upper side of the crankshaft, and the dynamic balance block is arranged on the lower side of the lower sliding block.
2. The pull-down slider mechanism with dynamic balancing means of claim 1, wherein: the lower sliding block is positioned at the lower side, the upper sliding block is positioned at the upper side, two ends of each of the four pull rods are respectively fixed at the side edges of the upper sliding block and the lower sliding block, and an inner space is supported between the lower sliding block and the upper sliding block.
3. The pull-down slider mechanism with dynamic balancing means of claim 1, wherein: the main connecting rod eccentric shaft is arranged in the middle of the crankshaft, and the auxiliary connecting rod eccentric shafts are arranged on two sides of the main connecting rod eccentric shaft respectively.
4. The pull-down slider mechanism with dynamic balancing means of claim 1, wherein: the dynamic balance weight is fixedly arranged on the front side and the rear side of the dynamic balance weight respectively, dynamic balance weight column calipers are arranged on the left side and the right side of the dynamic balance weight respectively, the dynamic balance weight column calipers can be clamped and fixedly connected with dynamic balance weight columns, and the configuration columns can be replaced with different weight specifications.
5. The pull-down slider mechanism with dynamic balancing means of claim 1, wherein: the connecting parts of the pull rod, the upper sliding block and the lower sliding block are fastened and connected through screws.
CN202010384920.3A 2020-05-09 2020-05-09 Pull-down slider mechanism with dynamic balancing device Pending CN111391385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010384920.3A CN111391385A (en) 2020-05-09 2020-05-09 Pull-down slider mechanism with dynamic balancing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010384920.3A CN111391385A (en) 2020-05-09 2020-05-09 Pull-down slider mechanism with dynamic balancing device

Publications (1)

Publication Number Publication Date
CN111391385A true CN111391385A (en) 2020-07-10

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ID=71426253

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010384920.3A Pending CN111391385A (en) 2020-05-09 2020-05-09 Pull-down slider mechanism with dynamic balancing device

Country Status (1)

Country Link
CN (1) CN111391385A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2476362Y (en) * 2001-04-29 2002-02-13 杨爱华 Punch for steel sheet net with V-shaped rib
CN101497097A (en) * 2009-02-14 2009-08-05 王赛珍 High-speed precision punching machine
CN204505887U (en) * 2015-03-10 2015-07-29 武汉中和车身有限公司 A kind of high pressure punch press
CN215397060U (en) * 2020-05-09 2022-01-04 东莞市锐力精密机械有限公司 Pull-down slider mechanism with dynamic balancing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2476362Y (en) * 2001-04-29 2002-02-13 杨爱华 Punch for steel sheet net with V-shaped rib
CN101497097A (en) * 2009-02-14 2009-08-05 王赛珍 High-speed precision punching machine
CN204505887U (en) * 2015-03-10 2015-07-29 武汉中和车身有限公司 A kind of high pressure punch press
CN215397060U (en) * 2020-05-09 2022-01-04 东莞市锐力精密机械有限公司 Pull-down slider mechanism with dynamic balancing device

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