CN218140031U

CN218140031U - Two-point double-crank press with compact structure

Info

Publication number: CN218140031U
Application number: CN202222371122.4U
Authority: CN
Inventors: 张天伟; 杨辉; 张嵩; 项华佳
Original assignee: Zhejiang Jinaolan Machine Tool Co ltd
Current assignee: Zhejiang Jinaolan Machine Tool Co ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2022-12-27
Anticipated expiration: 2032-09-07

Abstract

The utility model discloses a two point double crank presses of compact structure, including base and aircraft nose, be provided with the power transmission subassembly in the aircraft nose, the power transmission subassembly includes main crank, vice crank and the flywheel that provides power, main crank with vice crank's revolving axle is parallel to each other, main crank with be connected with the connecting rod on the vice crank separately, two connecting rod bottom is connected and is installed same slider, be provided with the mould on the slider, it carries out stamping work to the work piece on the base when descending. The utility model discloses a synchronous work of double crankshafts two connecting rods to double crankshafts parallel operation, thereby saved the space, promoted the qualification rate of product again, and improved production efficiency.

Description

Two-point double-crank press with compact structure

Technical Field

The utility model relates to a compact structure's two double crank press.

Background

The press machine is a universal press machine with an exquisite structure, has the characteristics of wide application, high production efficiency and the like, and can be widely applied to processes of cutting, punching, blanking, bending, riveting, forming and the like. The metal is processed into parts by applying a strong pressure to the metal blank to cause plastic deformation and fracture of the metal.

The crank press is the most common cold stamping equipment, is used as a working platform of a cold stamping die, and has a simple structure and convenient use. According to different machine tool body structural forms, the crank press can be divided into an open crank press or a closed crank press; according to the difference of the number of the driving connecting rods, the single-point press or the multi-point press can be divided; the press can be classified into a single press or a double press depending on whether one or two slides are used.

The existing double-point press is provided with two connecting rods, so that the volume of the press is larger. Moreover, most of the crank shafts adopt a structure of one crank shaft, so that the lifting work of two connecting rods cannot be completely synchronous due to the problem of machining precision errors, and the movement of a sliding block below the two connecting rods generates deviation. In this case, the product quality is not good if the case is light, and the press machine is damaged if the case is heavy.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to not enough among the prior art, provide a compact structure's two double crank press, saved the space, promoted the qualification rate of product again to production efficiency has been improved.

In order to achieve the purpose, the utility model adopts the technical proposal that: the utility model provides a compact structure's two double crank presses, includes base and aircraft nose, be provided with the power transmission subassembly in the aircraft nose, the power transmission subassembly includes main crank, vice crank and the flywheel that provides power, main crank with vice crank's revolving axle is parallel to each other, main crank with be connected with the connecting rod on the vice crank separately, two the same slider is installed in the connection of connecting rod bottom, be provided with the mould on the slider, it carries out punching press work to the work piece on the base when descending.

In the above technical solution, preferably, the flywheel is provided with a gear shaft, and the main crank is provided with a crank gear, and the crank gear is engaged with the gear shaft, thereby realizing power transmission.

In the above technical solution, preferably, the main crank and the auxiliary crank are both provided with a synchronous gear, and the synchronous gears at the two positions are engaged with each other, thereby realizing power transmission.

Among the above-mentioned technical scheme, preferably, the base both sides are provided with the side bearer, the aircraft nose sets up in the side bearer top, be provided with the slide rail on the lateral wall that the side bearer is in opposite directions, the activity is provided with on the slide rail the slider.

Among the above-mentioned technical scheme, preferably, the aircraft nose bottom is provided with two openings, the connecting rod passes corresponding position the opening back is connected with the slider of below.

The utility model provides a compact structure's two double crank presses adopt the synchronous working of double crank axle two connecting rods to double crank axle parallel operation has thereby saved the space, has promoted the qualification rate of product again, and has improved production efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be discussed below, it is obvious that the technical solutions described in conjunction with the drawings are only some embodiments of the present invention, and for those skilled in the art, other embodiments and drawings can be obtained according to the embodiments shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the power transmission assembly of the present invention.

Fig. 3 is a schematic view of the bottom view of the present invention.

In the figure: the device comprises a base 1, a side frame 11, a slide rail 111, a workbench 12, a machine head 13, a power transmission assembly 2, a main crank 21, an auxiliary crank 22, a synchronous gear 23, a through hole 24, a flywheel 3, a gear shaft 31 and a crank gear 32.

Detailed Description

The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments described in the present disclosure, all other embodiments obtained by a person skilled in the art without creative efforts are within the scope of the present disclosure.

As shown in fig. 1 to 3, the present embodiment discloses a two-point double crank press with a compact structure, which includes a base 1, a table 12, a side frame 11 and a machine head 13. The workbench 12 is arranged on the top of the base 1, and side frames are arranged on two sides of the base 1. A head 13 is mounted on the top of the side frame 11, and a power transmission assembly 2 is provided in the head 13 and functions to transmit the power of the motor to the mold working below. The power transmission assembly 2 comprises a main crank 21, a secondary crank 22 and a flywheel 3, wherein the flywheel 3 is connected with a motor belt drive or a chain drive. The main crank 21 and the auxiliary crank 22 are arranged with their axes of rotation parallel to each other, which saves space compared to the conventional coaxial arrangement. Because of the coaxial arrangement, the length of the rotating shaft is increased, and the length can be shortened because of the parallel arrangement.

The main crank 21 and the auxiliary crank 22 are respectively connected with a connecting rod, and the bottom ends of the two connecting rods are connected and provided with the same sliding block. The die is arranged on the sliding block, and when the sliding block descends, the die is driven to press downwards, so that the workpiece on the base 1 is punched.

The flywheel 3 is provided with a gear shaft 31, the main crank 21 is provided with a crank gear 32, and the crank gear 32 is meshed with the gear shaft 31, so that power transmission is realized. The main crank 21 and the auxiliary crank 22 are both provided with synchronous gears 23, and the synchronous gears 23 at the two positions are meshed with each other, so that power transmission is realized. By this arrangement, power transmission from the motor to the slider on the link is achieved.

Two sides of the base 1 are provided with side frames 11, the machine head 13 is arranged at the tops of the side frames 11, the opposite side walls of the side frames 11 are provided with slide rails 111, and the slide blocks are movably arranged on the slide rails 111. By providing the slide rail 111, a guiding effect is provided for the movement of the slider, and the reaction of the frictional force is reduced.

Two through openings 24 are formed in the bottom of the machine head 13, and the connecting rod penetrates through the through openings 24 in the corresponding positions and then is connected with a sliding block below the connecting rod.

When the device works: the flywheel and gear shaft drive crank gear 32 to rotate, which causes the crankshaft to rotate and drive the lower connecting rod slide (not shown). The crankshaft rotates to drive the sliding block to lift through the connecting rod, the sliding block is not at a constant speed, and the speed of the sliding block is slowed when the sliding block moves to a lower dead point; the return speed is increased, i.e. the phenomenon of quick return.

The device ensures the phase synchronization of the left crankshaft and the right crankshaft by the synchronous gear set by arranging the double-crank mechanism, and can avoid the asynchronism of the left crankshaft and the right crankshaft caused by machining errors by adopting two sets of connecting rod mechanisms. The low speed near the bottom dead center is beneficial to product forming, and the quick return characteristic is beneficial to the improvement of production efficiency.

The double-crank mechanism of the device adopts parallel arrangement, thereby saving installation space and reducing occupied area. Compared with the existing coaxial structure, the device has the advantages of compact structure and great advantage.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. The scope of the invention is indicated by the appended claims, rather than the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a compact structure's two double crank press, includes base (1) and aircraft nose (13), its characterized in that: be provided with power transmission subassembly (2) in aircraft nose (13), power transmission subassembly (2) include main crank (21), vice crank (22) and provide flywheel (3) of power, main crank (21) with the revolving axle of vice crank (22) is parallel to each other, main crank (21) with be connected with the connecting rod on vice crank (22) separately, two the connecting rod bottom is connected and is installed same slider, be provided with the mould on the slider, it carries out punching press work to the work piece on base (1) when descending.

2. The double-point double-crank press with the compact structure as claimed in claim 1, is characterized in that: the flywheel (3) is provided with a gear shaft (31), the main crank (21) is provided with a crank gear (32), and the crank gear (32) is meshed with the gear shaft (31) so as to realize power transmission.

3. The double-point double-crank press with the compact structure as claimed in claim 2, is characterized in that: the main crank (21) and the auxiliary crank (22) are both provided with synchronous gears (23), and the synchronous gears (23) at the two positions are meshed with each other, so that power transmission is realized.

4. A compact two-point double crank press according to claim 3, wherein: base (1) both sides are provided with side bearer (11), aircraft nose (13) set up in side bearer (11) top, be provided with slide rail (111) on side bearer (11) the lateral wall in opposite directions, the activity is provided with on slide rail (111) the slider.

5. A compact two-point double crank press according to claim 3, wherein: the bottom of the machine head (13) is provided with two openings (24), and the connecting rod penetrates through the corresponding position of the openings (24) and then is connected with a sliding block below the connecting rod.