CN219966070U - Upper pressing beam driving mechanism of bending machine - Google Patents

Abstract

The utility model provides an upper press beam driving mechanism of a bending machine, which comprises a frame, a connecting plate, a driving motor and driving shafts, wherein the driving shafts are arranged above the inside of the frame, the two sides of each driving shaft are respectively connected with a single-throw crankshaft, guide grooves which correspond to the single-throw crankshafts one by one are vertically arranged on the front wall surface of the frame, the guide grooves penetrate through the front wall of the frame front and back, each guide groove is internally provided with a connecting plate, and the connecting plates are in sliding fit with the two side walls of the guide groove; the connecting rod journal of the single-throw crankshaft is rotatably hinged with a connecting rod, and the other end of the connecting rod is rotatably hinged with a corresponding connecting plate. The upper pressing beam driving mechanism of the bending machine, which is designed by the utility model, adopts a crankshaft and a connecting rod mechanism driven by double motors, has firm and reliable overall structure, is convenient to maintain, has low failure rate and can keep higher processing precision for a long time.

Description

Upper pressing beam driving mechanism of bending machine

Technical Field

The utility model relates to bending processing equipment, in particular to an upper press beam driving mechanism of a bending machine.

Background

The upper press beam of the bending machine is arranged above the front side of the frame, an upper press knife and a knife changing device are arranged on the upper press beam, and a considerable part of actions of the upper press knife of the bending machine are completed by driving the upper press beam to move up and down. In the prior art, lifting driving of the upper pressing beam has various modes, such as belt pulley driving, chain driving and gear rack driving, wherein the belt pulley driving precision is not high, the chain and gear rack driving needs to be lubricated and maintained regularly, and along with the service life of a machine tool, the abrasion of the chain and the gear rack driving is often serious, and a large reverse gap is easy to appear, so that the processing quality of the machine tool is influenced.

Disclosure of Invention

Aiming at the problems in the background technology, the utility model aims to provide an upper press beam driving mechanism of a bending machine, which drives an upper press beam to lift on a frame through a crankshaft and a connecting rod driven by a motor, has a firm and reliable integral structure, is convenient to maintain, has low failure rate and can keep higher machining precision for a long time.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the upper press beam driving mechanism of the bending machine comprises a frame, a connecting plate, driving motors and driving shafts, wherein the driving shafts are arranged above the inside of the frame, the two sides of each driving shaft are respectively connected with a single-throw crankshaft, the rotation axis of each single-throw crankshaft is parallel to the driving shaft, the other end of each single-throw crankshaft is respectively connected with one driving motor, and the driving motors are fixedly arranged on the frame; the front wall surface of the frame is vertically provided with guide grooves corresponding to the single-throw crankshafts one by one, the guide grooves penetrate through the front wall of the frame front and back, each guide groove is internally provided with a connecting plate, and the connecting plates are in sliding fit with two side walls of the guide groove; the connecting rod journal of the single-throw crankshaft is rotationally hinged with a connecting rod, and the other end of the connecting rod is rotationally hinged with a corresponding connecting plate; the front end face of the connecting plate is connected with an upper pressing beam and used for driving the upper pressing beam to move up and down.

The front wall of the frame is provided with a plurality of groups of parallel vertical guide rails, each vertical guide rail is provided with a plurality of sliding blocks, and each sliding block is connected with an upper pressing beam.

The rear end face of the connecting plate is provided with a double-lug plate which is fixedly integrated with the connecting plate, a fixed shaft parallel to the driving shaft is connected between the double-lug plate, and the connecting rod is rotationally hinged on the fixed shaft.

The driving shaft is a spline shaft, and two ends of the driving shaft are respectively connected with the single-throw crankshaft through spline sleeves.

The two ends of the single-throw crankshaft are respectively arranged in the frame through bearings.

The driving motor is a synchronous motor.

The utility model has the beneficial effects that: the upper pressing beam driving mechanism of the bending machine, which is designed by the utility model, adopts a crankshaft and a connecting rod mechanism driven by double motors, has firm and reliable overall structure, is convenient to maintain, has low failure rate and can keep higher processing precision for a long time.

Drawings

Fig. 1 is a perspective view of the whole structure of the present utility model.

Fig. 2 is a schematic perspective view of the utility model with the frame removed.

Fig. 3 is a schematic perspective view of the present utility model at another view angle.

Fig. 4 is a perspective view of the present utility model from another perspective with the frame and upper compression beam removed.

Fig. 5 is a schematic perspective view of a partial structure of the present utility model.

Fig. 6 is a perspective view of the connecting plate and the connecting rod.

Fig. 7 is a partial structural perspective view of the present utility model at another view angle.

In the figure, 1, a frame, 3, a driving motor, 4, a driving shaft, 5, a single-throw crankshaft, 6, a guide groove, 7, a connecting plate, 8, a connecting rod, 9, an upper pressing beam, 10, a vertical guide rail, 11, a sliding block, 12 and a spline housing.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-7, an upper press beam driving mechanism of a bending machine comprises a frame 1, a connecting plate 7, driving motors 3 and driving shafts 4, wherein the driving shafts 4 are arranged above the inside of the frame 1, the two sides of each driving shaft 4 are respectively connected with a single-throw crankshaft 5, the rotation axis of each single-throw crankshaft 5 is parallel to the driving shaft 4, the other end of each single-throw crankshaft 5 is respectively connected with one driving motor 3, and the driving motors 3 are fixedly arranged on the frame 1; the front wall surface of the frame 1 is vertically provided with guide grooves 6 which are in one-to-one correspondence with the single-throw crankshafts 5, the guide grooves 6 penetrate through the front wall of the frame 1 front and back, each guide groove 6 is internally provided with a connecting plate 7, and the connecting plates 7 are in sliding fit with two side walls of the guide groove 6; a connecting rod 8 is rotatably hinged on a connecting rod journal of the single-throw crankshaft 5, and the other end of the connecting rod 8 is rotatably hinged with a corresponding connecting plate 7; the front end face of the connecting plate 7 is connected with an upper pressing beam 9 and used for driving the upper pressing beam 9 to move up and down.

The principle of the utility model is as follows: the two driving motors 3 drive the two single-throw crankshafts 5 to rotate at the same time, the single-throw crankshafts 5 drive the connecting plate 7 to slide in the guide grooves through the connecting rods 8, the connecting plate 7 drives the upper pressing beam to move upwards or downwards, the lubrication is simpler and convenient to maintain, and the device is different from most driving mechanisms which only rely on gravity to press downwards, meanwhile, the travel of the upper pressing beam is limited by the rotating radius of the connecting rods, and the device has higher safety coefficient.

The front wall of the frame 1 is provided with a plurality of groups of parallel vertical guide rails 10, each vertical guide rail 10 is provided with a plurality of sliding blocks 11, and each sliding block 11 is connected with an upper pressing beam 9. Specifically, the gravity of the upper pressing beam is dispersed through the plurality of groups of guide rails 10 and the plurality of sliding blocks 11, so that the vibration of the upper pressing beam during movement is small, and the movement is stable.

The rear end face of the connecting plate 7 is provided with a double-lug plate which is fixedly integrated with the connecting plate, a fixed shaft parallel to the driving shaft 4 is connected between the double-lug plate, and the connecting rod 8 is rotationally hinged on the fixed shaft.

The driving shaft 4 is a spline shaft, and two ends of the driving shaft are respectively connected with the single-throw crankshaft 5 through spline sleeves 12.

The two ends of the single-throw crankshaft 5 are respectively arranged in the frame 1 through bearings. Specifically, the single throw crankshaft 5 is rotatable in a bearing.

The driving motor 3 is a synchronous motor.

The utility model is not described in detail in the prior art.

Claims (6)

1. The utility model provides a roof beam actuating mechanism on bender, includes frame (1), connecting plate (7), driving motor (3) and drive shaft (4), characterized by: the driving shafts (4) are arranged above the inside of the frame (1), the two sides of each driving shaft (4) are respectively connected with a single-throw crankshaft (5), the rotation axis of each single-throw crankshaft (5) is parallel to the driving shaft (4), the other end of each single-throw crankshaft (5) is respectively connected with a driving motor (3), and the driving motors (3) are fixedly arranged on the frame (1); guide grooves (6) which are in one-to-one correspondence with the single-throw crankshafts (5) are vertically formed in the front wall surface of the frame (1), the guide grooves (6) penetrate through the front wall of the frame (1) front and back, connecting plates (7) are arranged in each guide groove (6), and the connecting plates (7) are in sliding fit with two side walls of the guide grooves (6); a connecting rod (8) is rotatably hinged on a connecting rod journal of the single-throw crankshaft (5), and the other end of the connecting rod (8) is rotatably hinged with a corresponding connecting plate (7); the front end face of the connecting plate (7) is connected with an upper pressing beam (9) and used for driving the upper pressing beam (9) to move up and down.

2. The press beam driving mechanism of a bending machine according to claim 1, wherein: the front wall of the frame (1) is provided with a plurality of groups of parallel vertical guide rails (10), each vertical guide rail (10) is provided with a plurality of sliding blocks (11), and each sliding block (11) is connected with an upper pressing beam (9).

3. The press beam driving mechanism of a bending machine according to claim 1, wherein: the rear end face of the connecting plate (7) is provided with a double-lug plate which is fixedly integrated with the connecting plate, a fixed shaft parallel to the driving shaft (4) is connected between the double-lug plate, and the connecting rod (8) is rotationally hinged on the fixed shaft.

4. The press beam driving mechanism of a bending machine according to claim 1, wherein: the driving shaft (4) is a spline shaft, and two ends of the driving shaft are respectively connected with the single-throw crankshaft (5) through spline sleeves (12).

5. The press beam driving mechanism of a bending machine according to claim 1, wherein: the two ends of the single-throw crankshaft (5) are respectively arranged in the frame (1) through bearings.

6. The press beam driving mechanism of a bending machine according to claim 1, wherein: the driving motor (3) is a synchronous motor.