CN209479010U - A kind of bar-link drive of press machine - Google Patents

Abstract

The utility model discloses a connecting rod driving mechanism of a press, which comprises a fuselage, a flywheel, a large gear and a connecting rod. A transmission shaft is fixedly arranged on the flywheel, and the transmission shaft is rotatably connected with the fuselage. There are small gears, and the characteristic is that the coaxial first and second main shafts are fixed on the fuselage. The first and second main shafts are located on both sides of the connecting rod. The gear is meshed with the pinion, the large gear is eccentrically fixed with a connecting shaft, the upper end of the connecting rod is sleeved on the connecting shaft, the end of the connecting shaft is fixedly provided with a connecting rod, the connecting rod and the large gear are located on both sides of the connecting rod, connected The end of the rod is rotatably connected with the second main shaft; the advantage is that the structure of the whole press is compact, and the processing, installation and maintenance are simple and convenient, which reduces the cost; The corresponding copper alloy lubrication simplifies the structure of the main shaft and also ensures the rigidity of the main shaft.

Description

A connecting rod drive mechanism of a press

technical field

The utility model relates to a press, in particular to a connecting rod driving mechanism of the press.

Background technique

Due to the limitation of processing, the traditional crank punching machine is difficult to meet the requirements of the large-stroke punching machine demanded in the market. At present, the large-stroke punching machines on the market basically adopt the structure of eccentric gear, which drives the connecting rod to swing up and down through the eccentric gear. However, because the eccentric gear is welded by the large gear and the eccentric hub in this structure, the eccentric The hub should also be enlarged accordingly, resulting in correspondingly enlarged connecting rods and other parts, which cost a lot, and the alloyed copper at the upper end of the connecting rod and the alloyed copper at both ends of the main shaft are processed through the lubrication holes on the main shaft. The realization of lubrication makes the number of holes on the main shaft more, which will weaken the rigidity of the main shaft, and the processing of the holes on the main shaft is longer and the processing cost is higher.

Contents of the invention

The technical problem to be solved by the utility model is to provide a connecting rod driving mechanism of a press which has a compact structure, reduces costs and can ensure the rigidity of the main shaft.

The technical scheme adopted by the utility model to solve the above-mentioned technical problems is: a connecting rod drive mechanism of a press, including a fuselage, a flywheel, a large gear and a connecting rod, and a transmission shaft is fixedly arranged on the flywheel, and the The transmission shaft is rotatably connected with the fuselage, the transmission shaft is coaxially fixed with a pinion, the coaxial first main shaft and the second main shaft are fixed fixedly on the described main shaft, and the first The main shaft and the second main shaft are located on both sides of the connecting rod, the large gear is coaxially sleeved on the first main shaft, the large gear meshes with the small gear, A connecting shaft is eccentrically fixed on the large gear, the upper end of the connecting rod is sleeved on the connecting shaft, the end of the connecting shaft is fixedly provided with a connecting rod, and the connecting rod and the The large gear is located on both sides of the connecting rod, and the end of the connecting rod is rotatably connected with the second main shaft.

Further, a first copper alloy is provided between the large gear and the first main shaft, a second copper alloy is provided between the connecting rod and the second main shaft, and the connecting rod A third copper alloy is arranged between the upper end of the upper end and the connecting shaft.

Further, the first main shaft is provided with a first oil passage leading to the first alloy, and the second main shaft is provided with a second oil passage leading to the second alloy , the connecting shaft is provided with a third oil passage leading to the third copper alloy, and the third oil passage communicates with the second oil passage or the first oil passage.

Compared with the prior art, the utility model has the advantages that the connecting rod is eccentrically connected with the large gear through the connecting shaft, so that the structure of the whole press is compact, and the processing, installation and maintenance are simple and convenient, and the cost is reduced; The main shaft connected with the large gear is divided into the first main shaft and the second main shaft which are independent of each other. The oil passages in the first main shaft and the second main shaft are respectively processed to lubricate the corresponding alloy copper, which simplifies the structure of the main shaft and ensures Spindle rigidity.

Description of drawings

Fig. 1 is the front view of the utility model;

Fig. 2 is a sectional view of the utility model.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in the figure, a connecting rod driving mechanism of a press includes a fuselage 1, a flywheel 2, a large gear 3 and a connecting rod 4. The flywheel 2 is fixedly provided with a transmission shaft 21, and the transmission shaft 21 is rotationally connected with the fuselage 1. , the transmission shaft 21 is coaxially fixed with a pinion 5, and the body 1 is fixed with a coaxial first main shaft 6 and a second main shaft 7, and the first main shaft 6 and the second main shaft 7 are located on both sides of the connecting rod 4 , the large gear 3 is coaxially sleeved on the first main shaft 6, and the first joint copper 61 is arranged between the large gear 3 and the first main shaft 6, the large gear 3 and the small gear 5 are meshed, and the large gear 3 is eccentrically fixed There is a connecting shaft 8, the upper end of the connecting rod 4 is sleeved on the connecting shaft 8, a third joint copper 81 is arranged between the upper end of the connecting rod 4 and the connecting shaft 8, and a connecting rod 9 is fixedly arranged at the end of the connecting shaft 8, and the connection The rod 9 and the large gear 3 are located on both sides of the connecting rod 4, and the end of the connecting rod 9 is rotationally connected with the second main shaft 7. A second alloy 71 is arranged between the connecting rod 9 and the second main shaft 7. The first oil passage 62 leading to the first alloy 61 is arranged inside, the second oil passage 72 leading to the second alloy 71 is arranged in the second main shaft 7, and the connecting shaft 8 is provided with the third oil passage leading to the third alloy. The third oil passage 82 of 81, the third oil passage 82 communicates with the second oil passage 72 or the first oil passage 62.

In the above embodiment, the working process of the connecting rod driving mechanism is: the flywheel 2 drives the large gear 3 to rotate through the transmission shaft 21 and the pinion 5, the large gear 3 drives the connecting rod 4 to swing up and down through the connecting shaft 8, and the connecting rod 4 drives the sliding Blocks move up and down.

Claims (3)

1. a kind of bar-link drive of press machine, including fuselage, flywheel, gear wheel and connecting rod, fixation is set on the flywheel It is equipped with transmission shaft, the transmission shaft and the fuselage are rotatablely connected, and are coaxially fixedly installed small tooth on the transmission shaft Wheel, it is characterised in that: be fixedly installed coaxial the first main shaft and the second main shaft on the fuselage, first main shaft and Second main shaft is located at the two sides of the connecting rod, and the gear wheel is coaxially set on first main shaft, institute The gear wheel stated is meshed with the pinion gear, and bias is fixed with connecting shaft on the gear wheel, the connecting rod it is upper For end cap in the connecting shaft, the end of the connecting shaft is fixedly installed connecting rod, the connecting rod and described Gear wheel is located at the two sides of the connecting rod, and the end of the connecting rod is connect with second main axis.

2. a kind of bar-link drive of press machine as described in claim 1, it is characterised in that: the gear wheel with it is described The first main shaft between be provided with the first conjunction copper, the second conjunction copper is provided between the connecting rod and second main shaft, It is provided with third between the upper end of the connecting rod and the connecting shaft and closes copper.

3. a kind of bar-link drive of press machine as claimed in claim 2, it is characterised in that: set in first main shaft It is equipped with and leads to the first oil duct that described first closes copper, be provided in second main shaft and lead to described second closes copper the Two oil ducts are provided in the connecting shaft and lead to the third oil duct that the third closes copper, the third oil duct with it is described The second oil duct or the first oil duct be connected.