CN211710094U - Heterodromous multistage transmission structure of high-precision punch eccentric shaft - Google Patents

Abstract

The utility model discloses a high-accuracy punch press eccentric shaft incorgruous multistage transmission structure belongs to accessory technical field for the punch press, including the eccentric shaft, be connected with the dead lever on the eccentric shaft, the one end that the eccentric shaft was kept away from to the dead lever is connected with the connecting rod, and the one end that the dead lever was kept away from to the connecting rod is connected with the transfer line, and the one end that the connecting rod was kept away from to the transfer line is connected with butt joint end, and the both sides that the dead lever was kept away from mutually all are equipped with: through being equipped with the connecting rod to the dead lever extension, increase the interval between dead lever and the transfer line, avoid receiving wearing and tearing, the dead lever passes through spacing groove cooperation nut to connecting rod one end spacing fixed, avoids the dislocation, through being equipped with the transfer line between connecting rod and butt joint end, during the transmission, through the flexible answer effect of spring beam, reduces and pulls the power, avoids the fracture, has buffering cushioning effect simultaneously, improves stability, overall structure is reasonable, the practicality is high, great improvement characteristics such as life.

Description

A kind of high-precision punch eccentric shaft anisotropic multi-stage transmission structure

technical field

The utility model relates to an eccentric shaft, in particular to a different-direction multi-stage transmission structure of an eccentric shaft of a high-precision punching machine, which belongs to the technical field of accessories for punching machines.

Background technique

A punch press is a stamping press. In national production, the stamping process saves materials and energy compared with traditional machining, and has high efficiency. These advantages of products that cannot be processed by processing, so it is more and more widely used. The eccentric shaft is an important part of the punch press. It is usually fixed on the rotating shaft of the motor through the eccentric hole. The transmission structure of some eccentric shafts is too simple, and cannot carry out anisotropic multi-stage transmission, which greatly reduces the practicability. The traditional transmission structure is generally a direct transmission between the connecting rod and the butt end. damage, short service life, etc.

Utility model content

The purpose of this utility model is to provide a high-precision punch eccentric shaft anisotropic multi-stage transmission structure, so as to solve the problem that most of the current eccentric shaft transmission structures proposed in the above-mentioned background technology are too simple, and cannot carry out anisotropic multi-stage transmission, which greatly reduces the It reduces the practicability, and at the same time, the stability is poor, it is easy to be damaged, and the service life is short.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a high-precision punching machine eccentric shaft anisotropic multi-stage transmission structure, including an eccentric shaft, a fixed rod is connected to the eccentric shaft, and the fixed rod is away from one end of the eccentric shaft A connecting rod is connected, one end of the connecting rod away from the fixing rod is connected with a transmission rod, one end of the transmission rod away from the connecting rod is connected with a butt end, and both sides of the fixing rod away from the connecting rod are provided with nuts and are connected with the eccentric shaft away from each other.

As a preferred technical solution of the present invention, the fixing rod includes a sleeve opening, the sleeve opening is arranged on one end of the fixing rod, the other end of the fixing rod is provided with a limit groove, and the fixing rods are far away from each other. Both sides are provided with perforations and are away from the sleeve opening, the connecting rod includes a fixed screw, one end of the connecting rod is fixedly connected with a fixed screw on both sides, and one side of the other end of the connecting rod is provided with a movable groove, The transmission rod includes a first support rod and a second support rod, a spring rod is arranged between the first support rod and the second support rod, and both sides of the first support rod and the second support rod are fixedly connected There is a connecting shaft, the two inner side walls of the first support rod and the second support rod away from each other are provided with sliding grooves, and the two ends of the spring rod away from each other are fixedly connected to limit blocks and placed on the first support rod and the second support rod. In the second support rod, several sliding blocks are fixedly connected on both sides of the limiting block that are away from each other.

As a preferred technical solution of the present invention, one end of the fixing rod is fixedly connected to the eccentric shaft through a sleeve, and one end of the connecting rod corresponds to the limiting groove of the fixing rod, and is inserted through the fixing screw corresponding to the eccentric shaft. The nut is threaded and fixed with the fixing screw.

As a preferred technical solution of the present invention, one side of the first support rod is movably connected to the movable groove of the connecting rod through a connecting shaft, and one side of the second support rod is movably connected to the butt end through a connecting shaft.

As a preferred technical solution of the present invention, the extension ends of the two ends of the spring rod are inserted into the first support rod and the second support rod to be movably connected, and the two sides of the limit block are connected to the first support rod through the limit blocks. The rod or the corresponding chute of the second support rod is slidably connected.

Compared with the prior art, the beneficial effects of the present utility model are as follows: the present utility model is a different-direction multi-stage transmission structure of the eccentric shaft of a high-precision punch press. The distance between the connecting rod and the connecting rod can be avoided to be worn. The fixed rod is limited and fixed to one end of the connecting rod through the limit groove and the nut to avoid misalignment. There is a transmission rod between the connecting rod and the butt end. , reduce the pulling force, avoid breakage, and at the same time have the function of buffering and shock absorption, improve the stability, the overall structure is reasonable, the practicability is high, and the service life is greatly improved.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the three-dimensional structure schematic diagram of the utility model fixing rod;

Fig. 3 is the three-dimensional structure schematic diagram of the connecting rod of the present invention;

FIG. 4 is a schematic cross-sectional view of the structure of the transmission rod of the present invention.

In the figure: 1, eccentric shaft; 2, fixed rod; 3, connecting rod; 4, transmission rod; 5, butt end; 6, nut; 21, sleeve; 22, limit groove; 23, perforation; 31, fixed Screw; 32, movable groove; 41, first support rod; 42, second support rod; 43, spring rod; 44, connecting shaft; 45, chute; 431, limit block; 432, slider.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-4, the present utility model provides a high-precision punch eccentric shaft asymmetric multi-stage transmission structure, including an eccentric shaft 1, the eccentric shaft 1 is connected with a fixed rod 2, and the end of the fixed rod 2 away from the eccentric shaft 1 A connecting rod 3 is connected, the end of the connecting rod 3 away from the fixed rod 2 is connected with a transmission rod 4, the end of the transmission rod 4 away from the connecting rod 3 is connected with a butt end 5, and the two sides of the fixed rod 2 away from each other are provided with nuts 6 and away from the eccentric shaft 1.

The fixing rod 2 includes a sleeve opening 21 , the sleeve opening 21 is arranged on one end of the fixing rod 2 , the other end of the fixing rod 2 is provided with a limiting groove 22 , and the two sides away from the fixing rod 2 are provided with through holes 23 and are connected with the sleeve opening 21 . Away from each other, the connecting rod 3 includes a fixed screw 31, one end of the connecting rod 3 is fixedly connected with a fixed screw 31 on both sides, the other end of the connecting rod 3 is provided with a movable groove 32, and the transmission rod 4 includes a first support rod 41 and The second support rod 42, a spring rod 43 is provided between the first support rod 41 and the second support rod 42, and a connecting shaft 44 is fixedly connected to one side of the first support rod 41 and the second support rod 42. The two inner side walls of the rod 41 and the second support rod 42 away from each other are provided with sliding grooves 45, and the two ends of the spring rod 43 away from each other are fixedly connected to the limiting block 431 and placed on the first support rod 41 and the second support rod 42. Inside, a number of sliders 432 are fixedly connected on both sides of the limiting block 431 away from each other, one end of the fixing rod 2 is fixedly connected to the eccentric shaft 1 through the sleeve 21, and one end of the connecting rod 3 is connected to the end of the fixing rod 2. The limit slot 22 corresponds to the corresponding hole 23 through the fixing screw 31, the nut 6 is threadedly connected to the fixing screw 31, and the fixing rod 2 is lengthened by the connecting rod 3, and the distance between the fixing rod 2 and the transmission rod 4 is increased, To avoid wear and tear, the fixed rod 2 is limited and fixed to one end of the connecting rod 3 through the limiting groove 22 and the nut 6 to avoid misalignment. One side of the second support rod 42 is movably connected to the docking end 5 through the connecting shaft 44 , the extension ends of the two ends of the spring rod 43 are inserted into the first support rod 41 and the second support rod 42 to be movably connected, and the two sides of the limit block 431 are movably connected. The limit block 431 is slidably connected to the chute 45 corresponding to the first support rod 41 or the second support rod 42 , and a transmission rod 4 is provided between the connecting rod 3 and the butt end 5 . The telescopic recovery function reduces the pulling force and avoids breakage, and at the same time has the function of buffering and shock absorption to improve the stability.

In specific use, the utility model is a high-precision punch eccentric shaft different-direction multi-stage transmission structure, the eccentric shaft 1 is driven by a motor, the eccentric shaft 1 drives a fixed rod 2 to rotate, and one end of the fixed rod 2 and the connecting rod 3 is fixed by a nut 6 , the nut 6 is lengthened through the connecting rod 3 to prevent the transmission rod 4 and the fixed rod 2 from being too compact and causing wear, and the limit groove 22 limits one end of the connecting rod 3 to avoid dislocation, and the connecting rod 3 is connected to the butt end 5 through the transmission rod 4 During transmission, when the transmission rod 4 is in transmission, the retraction and recovery action of the spring rod 43 relieves the pulling force, improves the toughness of the transmission rod 4, avoids breakage, and has the effect of buffering vibration at the same time. The extension end of the spring rod 43 passes through the limit block 431 and the chute 45 corresponding to the inner wall of the first support rod 41 or the second support rod 42 are limited to slide to improve stability.

In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the indicated The device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

In the present utility model, unless otherwise expressly specified and limited, for example, it may be a fixed connection, a detachable connection, or an integrated; it may be a mechanical connection or an electrical connection; it may be a direct connection, or a It can be indirectly connected through an intermediate medium, it can be the internal communication between two elements or the interaction relationship between the two elements, unless otherwise clearly defined, for those of ordinary skill in the art, the above terms can be understood according to specific situations in this document. The specific meaning in the utility model.

Claims (5)

1. An eccentric multi-stage transmission structure of a high-precision punch press, characterized in that it comprises an eccentric shaft (1), and a fixed rod (2) is connected to the eccentric shaft (1), and the fixed rod (2) One end away from the eccentric shaft (1) is connected with a connecting rod (3), and one end of the connecting rod (3) away from the fixing rod (2) is connected with a transmission rod (4), and the transmission rod (4) is away from the connecting rod ( One end of 3) is connected with a butt end (5), and both sides of the fixing rod (2) away from each other are provided with nuts (6) and are away from the eccentric shaft (1). 2 . The eccentric multi-stage transmission structure of a high-precision punch press according to claim 1 , wherein the fixing rod ( 2 ) comprises a sleeve opening ( 21 ), and the sleeve opening ( 21 ) is located at the On one end of the fixed rod (2), the other end of the fixed rod (2) is provided with a limit groove (22), and the two sides of the fixed rod (2) away from each other are provided with perforations (23) and are connected with the sleeve opening (21) are far away from each other, the connecting rod (3) includes a fixed screw (31), one end of the connecting rod (3) is fixedly connected with a fixed screw (31) on both sides, and the other side of the connecting rod (3) is fixed. A movable groove (32) is provided on one side of one end, the transmission rod (4) includes a first support rod (41) and a second support rod (42), the first support rod (41) and the second support rod ( A spring rod (43) is arranged between 42), and a connecting shaft (44) is fixedly connected to one side of the first support rod (41) and the second support rod (42). The first support rod (41) ) and the two inner side walls away from the second support rod (42) are provided with sliding grooves (45), and the two ends of the spring rod (43) away from each other are fixedly connected to the limiting block (431) and placed in the first In the support rod (41) and the second support rod (42), a plurality of sliding blocks (432) are fixedly connected on both sides of the limiting block (431) that are away from each other. 3. The eccentric shaft of a high-precision punching machine according to claim 2, wherein one end of the fixed rod (2) is sleeved on the eccentric shaft (1) through a sleeve (21). To be fixedly connected to it, one end of the connecting rod (3) corresponds to the limiting groove (22) of the fixing rod (2), and is inserted into the corresponding through hole (23) through the fixing screw (31), and the nut (6) is connected to the corresponding hole (23). The fixing screw (31) is screwed and fixed. 4. The eccentric multi-stage transmission structure of a high-precision punch press according to claim 2, wherein one side of the first support rod (41) is connected to the connecting rod (3) through a connecting shaft (44) ) of the movable groove (32) is movably connected, and one side of the second support rod (42) is movably connected to the butt end (5) through the connecting shaft (44). 5. The eccentric multi-stage transmission structure of a high-precision punch press according to claim 2, wherein the extension ends of the two ends of the spring rod (43) are inserted into the first support rod (41) and the second support rod (41). The support rod (42) is movably connected with it, and the two sides of the limit block (431) pass through the limit block (431) and the chute (45) corresponding to the first support rod (41) or the second support rod (42). Slide to connect.

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