Punching machine with toggle type transmission mechanism

Abstract

The utility model discloses a toggle type transmission mechanism which comprises a lathe bed, a transmission shaft, a transmission mechanism and a connecting rod with a sliding block, the transmission shaft is matched with the lathe bed in a rotating mode, the connecting rod is hinged to the transmission shaft, the transmission mechanism comprises a power wheel, a driving wheel and a driving rod, the driving wheel is matched with the lathe bed in a rotating mode, and the driving rod is hinged to the driving wheel. The power wheel is used for driving the driving wheel to rotate, one end of the driving rod is hinged to the driving wheel, the end of the driving rod and the driving wheel are arranged in an eccentric fit mode, and the other end of the driving rod is hinged to the transmission shaft and used for driving the transmission shaft to swing. Toggle type transmission can be achieved through the arranged driving wheel and the driving rod, namely, the transmission shaft can be driven to swing, and then the connecting rod is driven to drive the sliding block to move up and down for punching. Meanwhile, compared with a traditional punching machine, the pressure maintaining capacity in the punching process can be effectively improved through the design.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch press field, concretely relates to a punch press with toggle type transmission mechanism. BACKGROUND

[0002] Punch press, namely punch press, in production and manufacture, punch press process compared with traditional mechanical processing has saved material and energy, high efficiency, and the operator's technical requirement is not high and through various die applications can make the product that traditional mechanical processing cannot reach these advantages, thus its use is more and more extensive.Punch press production is mainly aimed at sheet material.For example, through die can make blanking, punching, forming, drawing, finishing, fine punching, shaping, riveting and extrusion parts and so on, and is widely used in various fields.

[0003] The design principle of punch press is to convert circular motion into linear motion, driven by main motor, to drive flywheel, crankshaft, connecting rod and the like to rotate, to achieve the linear motion of the sliding block, and the motion from the main motor to the connecting rod is circular motion.The existing punch press crankshaft moves in the driving of flywheel, and the problem is that the stroke is large when rotating one circle, which leads to low stamping efficiency, and the pressure maintaining capacity is poor when the die is closed. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problems that: provide a punch press with toggle type transmission mechanism, its structure is simple, and the processing efficiency is high and has good pressure maintaining capacity.

[0005] The utility model adopts the technical scheme for solving the above technical problems: a punch press with toggle type transmission mechanism, including the body, and the connecting rod with the sliding block, still including transmission shaft and transmission mechanism, the transmission shaft is rotationally cooperated with the body, the connecting rod is hinged with the transmission shaft, the transmission mechanism includes power wheel, drive wheel and drive rod, the drive wheel is rotationally cooperated with the body, the power wheel is used for driving the drive wheel rotation, one end of the drive rod is hinged with the drive wheel, and the end of the drive rod is eccentrically cooperated with the drive wheel and is arranged, the other end of the drive rod is hinged with the transmission shaft and is used for driving the transmission shaft swing.

[0006] Preferably, the transmission shaft is provided with a connecting seat, and the other end of the drive rod is hinged with the connecting seat, which has the advantages that the connecting seat can guarantee the reliability of the hinge between the transmission shaft and the drive rod, improve the hinge fluency and the anti-deformation ability, and facilitate stamping.

[0007] Furthermore, the drive shaft is provided with a hinge seat, the connecting rod is hinged to the hinge seat, the connecting seat is located above the drive shaft, and the hinge seat is located below the drive shaft; the advantage is that the hinge seats and connecting seats provided on both sides of the drive shaft can facilitate the drive shaft to swing while driving the connecting rod to move, thereby driving the slider to move up and down.

[0008] Furthermore, the hinge shaft between the drive rod and the connecting seat is located above the plane containing the drive wheel's shaft and the transmission shaft; the advantage is that by setting the hinge shaft above the plane, it can effectively ensure that the drive wheel and drive rod can smoothly drive the transmission shaft to swing, thereby improving processing efficiency.

[0009] Preferably, the drive wheel includes two coaxially arranged rotating wheels, with an eccentric wheel fixedly disposed between the two rotating wheels. A connecting sleeve is provided at one end of the drive rod, and the connecting sleeve rotatably engages with the eccentric wheel. The advantage is that the engagement between the drive wheel and the drive rod is smoother and more reliable through the engagement between the rotating wheel and the eccentric wheel, as well as the engagement between the connecting sleeve on the drive rod and the eccentric wheel.

[0010] Furthermore, the bed is equipped with a fixed frame, and the drive wheel is equipped with a rotating shaft. The rotating shaft is rotatably engaged with the fixed frame. The advantage is that the fixed frame can ensure the stability of the drive wheel and the power wheel during operation.

[0011] Furthermore, the power wheel is rotatably coupled with the fixed frame, and a transmission wheel is coaxially arranged on the power wheel, which meshes with the rotating wheel; the advantage is that the meshing transmission wheel and rotating wheel can effectively improve the transmission accuracy and ensure the reliability of production and processing.

[0012] Furthermore, the two rotating wheels are connected and fixed by a fixed shaft. The fixed frame is provided with auxiliary plates located at both ends of the fixed shaft. The auxiliary plates have mounting holes, and bearing seats are provided in the mounting holes. The bearing seats cooperate with the ends of the fixed shaft. The advantage is that the cooperation between the bearing seats and the fixed shaft can extend the service life, reduce wear, and improve the smoothness of processing.

[0013] Compared with existing technologies, the advantages of this invention are that the drive wheel and drive rod enable toggle-type transmission, which drives the drive shaft to swing, thereby driving the connecting rod to move the slider up and down for stamping. At the same time, compared with traditional punch presses, this design can effectively improve the pressure holding capacity during the stamping process. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram showing the positions of the drive shaft and the transmission mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram showing the fit between the drive shaft and the transmission mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram showing the fit between the drive rod and the transmission shaft of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the transmission shaft of this utility model;

[0020] Figure 6 This is a schematic diagram showing the cooperation between the rotating wheel and the drive rod of this utility model;

[0021] Figure 7 This is a structural schematic diagram of the fixing frame of this utility model. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious modifications will be apparent to those skilled in the art. The basic principles of the present invention defined in the following description can be used in other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0024] As attached Figures 1-7The punch press shown includes a toggle-type transmission mechanism, comprising a bed 1, a connecting rod 2 with a slider 3, a transmission shaft 4, and a transmission mechanism 5. The transmission shaft 4 is rotatably connected to the bed 1, and the connecting rod 2 is hinged to the transmission shaft 4. The transmission mechanism 5 includes a drive wheel, a drive wheel 5.1, and a drive rod 5.2. The drive wheel 5.1 is rotatably connected to the bed 1, and the drive wheel drives the drive wheel 5.1 to rotate. One end of the drive rod 5.2 is hinged to the drive wheel 5.1, and the end of the drive rod 5.2 is eccentrically connected to the drive wheel 5.1. The other end of the drive rod 5.2 is hinged to the transmission shaft 4 to drive the transmission shaft 4 to swing. The toggle-type transmission achieved by the drive wheel 5.1 and drive rod 5.2 drives the transmission shaft 4 to swing, which in turn drives the connecting rod 2 to move the slider 3 up and down for punching. Compared to traditional punch presses, this design effectively improves the pressure holding capacity during the punching process.

[0025] To ensure reliable and smooth operation of the punch press, the aforementioned drive shaft 4 is equipped with a connecting seat 4.1. The other end of the drive rod 5.2 is hinged to the connecting seat 4.1, which improves the smoothness of the hinge and the resistance to deformation, facilitating the punching process. Preferably, the aforementioned drive shaft 4 is also equipped with a hinge seat 4.2, and the connecting rod 2 is hinged to the hinge seat 4.2. The connecting seat 4.1 is located above the drive shaft 4, and the hinge seat 4.2 is located below the drive shaft 4. The hinge seats 4.2 and the connecting seat 4.1 on both sides of the drive shaft 4 can facilitate the swinging of the drive shaft 4 while driving the connecting rod 2 to move, thereby driving the slide block 3 to move up and down.

[0026] Based on the above, the hinge shaft of the drive rod 5.2 and the connecting seat 4.1 in this design is located above the plane where the drive wheel 5.1's rotating shaft and the transmission shaft 4 are located. Setting the hinge shaft above the plane can effectively ensure that the drive wheel 5.1 and the drive rod 5.2 can smoothly drive the transmission shaft 4 to swing, thereby improving processing efficiency.

[0027] The drive wheel 5.1 of this utility model includes two coaxially arranged rotating wheels 5.11, and an eccentric wheel 5.12 is fixedly arranged between the two rotating wheels 5.11. One end of the drive rod 5.2 is provided with a connecting sleeve 5.21, which rotates and engages with the eccentric wheel 5.12. Through the engagement of the rotating wheel 5.11 and the eccentric wheel 5.12, as well as the engagement of the connecting sleeve 5.21 on the drive rod 5.2 with the eccentric wheel 5.12, the engagement between the drive wheel 5.1 and the drive rod 5.2 is made smoother and more reliable.

[0028] Based on the above, to ensure the stability of the punch press, the bed 1 is equipped with a fixed frame 1.1, and the drive wheel 5.1 is equipped with a rotating shaft 5.13, which is rotatably engaged with the fixed frame 1.1. Furthermore, the power wheel 5.4 (i.e., flywheel) is rotatably engaged with the fixed frame 1.1. A transmission wheel 5.3 is coaxially mounted on the power wheel 5.4, and the transmission wheel 5.3 meshes with the rotating wheel 5.11, thereby synchronously rotating the drive wheel when the flywheel rotates. The meshing transmission wheel 5.3 and the rotating wheel 5.11 effectively improve transmission accuracy and ensure the reliability of production processing.

[0029] It is worth mentioning that the two rotating wheels 5.11 mentioned above are connected and fixed by a fixed shaft. The fixed frame 1.1 is provided with auxiliary plates 1.2 located at both ends of the fixed shaft. The auxiliary plates 1.2 have mounting holes, and bearing seats 1.3 are installed in the mounting holes. The bearing seats 1.3 cooperate with the ends of the fixed shaft. The cooperation between the bearing seats 1.3 and the fixed shaft can extend the service life, reduce wear, and improve the smoothness of machining.

[0030] The power wheel of this invention can be driven by an electric motor, that is, the electric motor drives the power wheel to rotate through a belt.

[0031] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations or modifications.

Claims

1. A punch press equipped with a toggle-type transmission mechanism, comprising a bed and a connecting rod with a slider, characterized in that, It also includes a drive shaft and a transmission mechanism. The drive shaft is rotatably coupled to the bed, and the connecting rod is hinged to the drive shaft. The transmission mechanism includes a power wheel, a drive wheel, and a drive rod. The drive wheel is rotatably coupled to the bed, and the power wheel is used to drive the drive wheel to rotate. One end of the drive rod is hinged to the drive wheel, and the end of the drive rod is eccentrically coupled to the drive wheel. The other end of the drive rod is hinged to the drive shaft to drive the drive shaft to swing.

2. A punch press with a toggle-type transmission mechanism according to claim 1, characterized in that, The drive shaft is provided with a connecting seat, and the other end of the drive rod is hinged to the connecting seat.

3. A punch press with a toggle-type transmission mechanism according to claim 2, characterized in that, The drive shaft is provided with a hinge seat, the connecting rod is hinged to the hinge seat, the connecting seat is located above the drive shaft, and the hinge seat is located below the drive shaft.

4. A punch press with a toggle-type transmission mechanism according to claim 3, characterized in that, The hinge axis between the drive rod and the connecting seat is located above the plane containing the drive wheel's shaft and the transmission shaft.

5. A punch press with a toggle-type transmission mechanism according to claim 1, characterized in that, The drive wheel includes two coaxially arranged rotating wheels, with an eccentric wheel fixedly arranged between the two rotating wheels. One end of the drive rod is provided with a connecting sleeve, which is rotatably engaged with the eccentric wheel.

6. A punch press with a toggle-type transmission mechanism according to claim 5, characterized in that, The bed is equipped with a fixed frame, and the drive wheel is equipped with a rotating shaft, which is rotatably engaged with the fixed frame.

7. A punch press with a toggle-type transmission mechanism according to claim 6, characterized in that, The power wheel is rotatably coupled to the fixed frame, and a transmission wheel is coaxially mounted on the power wheel, which meshes with the rotating wheel.

8. A punch press with a toggle-type transmission mechanism according to claim 6, characterized in that, The two rotating wheels are connected and fixed by a fixed shaft. The fixed frame is provided with auxiliary plates at both ends of the fixed shaft. The auxiliary plates have mounting holes and bearing seats are provided in the mounting holes. The bearing seats cooperate with the ends of the fixed shaft.

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