Structure for rigidly connecting connecting rod with lead screw of closed single-point press

Abstract

The utility model discloses a structure for rigidly connecting a connecting rod with a screw rod of a closed single-point press, which comprises a lengthened connecting rod, a connecting hole is arranged on the side surface of the lower end of the lengthened connecting rod, supporting parts are arranged on two sides of the lower end of the lengthened connecting rod, the lower end of the lengthened connecting rod is positioned in a U-shaped connecting seat, and the connecting rod is fixedly connected with the connecting rod. According to the structure that the connecting rod of the closed type single-point press is rigidly connected with the lead screw, the structural design that the lengthened connecting rod and the underneath type lead screw are rigidly connected through the shaft pins in the middle is adopted, and therefore the connecting rod of the closed type single-point press can be rigidly connected with the lead screw through the shaft pins. And meanwhile, the screw rod is not influenced by the size design and is directly thickened by one time, the impact deformation resistance is greatly enhanced, the problem that the screw rod is meshed and locked when a certain load is exceeded is solved, the sequelae of a traditional connecting structure of a ball head screw rod and an internal thread connecting rod is changed, and the problem of stable matching of the connecting rod and the screw rod is thoroughly solved.

Description

Technical Field

[0001] The utility model relates to the technical field of single-point presses, in particular to a structure of a rigid connecting screw rod of a closed single-point press. Background Art

[0002] The connecting rod and lead screw in a closed single-point press are the key stress-bearing parts. Generally, the connecting rod has a hollow lead screw hole at the bottom, and the ball-end lead screw is screwed into the inner thread of the connecting rod. Due to the small size of the connecting rod bottom, the designed lead screw size is small. Generally, if it is slightly larger or exceeds a certain load, it is easy to get stuck. It can only be destructively cut off and the lead screw must be re-matched before the equipment can be restored to use, causing great impact and loss. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model discloses a structure of a rigid connecting screw rod of a closed single-point press machine, and the technical solution adopted is that it includes an extended connecting rod, a connecting hole is opened on the side of the lower end of the extended connecting rod, and support parts are arranged on both sides of the lower end of the extended connecting rod, and the lower end of the extended connecting rod is located inside a U-shaped connecting seat, and an axle pin is inserted in the through hole on the side of the connecting seat and the connecting hole, the bottom of the two supporting parts on the extended connecting rod is in contact with the bottom of the connecting seat, and a screw rod is fixedly installed on the bottom of the connecting seat.

[0004] As a preferred technical solution of the utility model, two positioning plates are respectively arranged in the two grooves on the side of the connecting seat and the grooves at both ends of the shaft pin, and both ends of the two positioning plates are fixedly installed on the side of the connecting seat by bolts.

[0005] As a preferred technical solution of the utility model, weight-reducing grooves are provided on both sides of the lengthened connecting rod.

[0006] As a preferred technical solution of the utility model, a balancing hole is opened on the side surface of the upper end of the extended connecting rod.

[0007] The beneficial effects of the utility model are as follows: the utility model adopts a structural design in which an extended connecting rod and a lower-mounted screw rod are rigidly connected by an axle pin in the middle. At the same time, the screw rod is not affected by the design of the size and is directly thickened by one time, and the impact deformation resistance is greatly enhanced. The problem of the screw rod being bitten and locked when subjected to a load exceeding a certain limit is solved, and the sequelae of the traditional ball head screw rod and inner wire connecting rod connection structure are changed, and the problem of stable matching between the connecting rod and the screw rod is completely solved. The axle pin can be positioned by the positioning plate and the bolt to prevent the axle pin from falling off and affecting the stability of the connection between the extended connecting rod and the connecting seat. The weight of the extended connecting rod can be reduced by the weight-reducing groove, and the dynamic balance performance of the extended connecting rod can be improved by the balancing hole, reducing vibration and instability during high-speed operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0009] Figure 2 This is a schematic diagram of the structure of the extended connecting rod of the utility model;

[0010] Figure 3 It is a schematic diagram of the connection seat structure of the utility model.

[0011] In the figure: 1 extended connecting rod, 2 connecting seat, 3 screw rod, 4 shaft pin, 5 support part, 6 connecting hole, 7 positioning plate, 8 bolt, 9 weight reduction groove, 10 balance hole. DETAILED DESCRIPTION

[0012] Example 1

[0013] like Figures 1 to 3 As shown, the utility model discloses a structure of a rigid connecting screw rod of a closed single-point press, and the technical scheme adopted is that it comprises an extended connecting rod 1, a connecting hole 6 is provided on the side surface of the lower end of the extended connecting rod 1, support parts 5 are provided on both sides of the lower end of the extended connecting rod 1, weight reduction grooves 9 are provided on the two side surfaces of the extended connecting rod 1, and the weight reduction grooves 9 can reduce the weight of the extended connecting rod 1, and a balancing hole 10 is provided on the side surface of the upper end of the extended connecting rod 1, and the dynamic balance performance of the extended connecting rod 1 can be improved through the balancing hole 10, and the vibration and instability during high-speed operation can be reduced, the lower end of the extended connecting rod 1 is located inside the U-shaped connecting seat 2, and the through hole on the side surface of the connecting seat 2 and the connecting hole 6 are inserted with an axle pin 4, the bottom of the two support parts 5 on the extended connecting rod 1 contacts the bottom of the connecting seat 2, and the connecting seat Two locating plates 7 are respectively arranged in the two grooves on the side of 2 and the grooves at both ends of the shaft pin 4. Both ends of the two locating plates 7 are fixedly installed on the side of the connecting seat 2 by bolts 8. The shaft pin 4 can be positioned by the locating plates 7 and the bolts 8 to prevent the shaft pin 4 from falling off and affecting the stability of the connection between the extended connecting rod 1 and the connecting seat 2. The bottom of the connecting seat 2 is fixedly installed with a screw rod 3. By adopting the structural design of the extended connecting rod 1 and the lower screw rod 3, the middle is rigidly connected by the shaft pin 4. At the same time, the screw rod 3 is not affected by the size design and is directly thickened by one time. The impact deformation resistance is greatly enhanced, which solves the problem of the screw rod 3 biting and locking under a certain load, changes the sequelae of the traditional ball head screw rod and the inner wire connecting rod connection structure, and completely solves the problem of stable matching between the connecting rod and the screw rod.

[0014] The working principle of the utility model is as follows: the screw rod 3 is screwed into the ball head on the slider of the single-point press, and the extended connecting rod 1 is installed on the crankshaft. When in use, the crankshaft rotates to drive the extended connecting rod 1 to make a circular motion, so that the screw rod 3 at the bottom drives the ball head and the slider to move up and down for single-point stamping. The extended connecting rod 1 and the lower screw rod 3 are adopted, and the structural design of the rigid connection through the shaft pin 4 in the middle is adopted. At the same time, the screw rod 3 is not affected by the design of the size, and is directly thickened by half, and the impact deformation resistance is greatly enhanced, which solves the problem of the screw rod 3 being locked by biting when subjected to a certain load, changes the sequelae of the traditional ball head screw rod and the inner wire connecting rod connection structure, and completely solves the problem of stable matching between the connecting rod and the screw rod.

[0015] Components not described in detail herein are prior art.

[0016] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention, and modifications or deformations without creative labor are still within the scope of protection of the present invention.

Claims

1. A structure of a closed single-point press connecting rod with a rigid connection screw rod. It is characterized in that The invention comprises an extended connecting rod (1), a connecting hole (6) is provided on the side of the lower end of the extended connecting rod (1), supporting parts (5) are provided on both sides of the lower end of the extended connecting rod (1), the lower end of the extended connecting rod (1) is located inside a U-shaped connecting seat (2), an axle pin (4) is inserted into the through hole on the side of the connecting seat (2) and the connecting hole (6), the bottoms of the two supporting parts (5) on the extended connecting rod (1) are in contact with the bottom of the connecting seat (2), and a screw rod (3) is fixedly installed on the bottom of the connecting seat (2).

2. The structure of the rigid connecting screw rod of a closed single-point press according to claim 1, Features: Two positioning plates (7) are respectively arranged in the two grooves on the side of the connecting seat (2) and the grooves at both ends of the shaft pin (4), and both ends of the two positioning plates (7) are fixedly mounted on the side of the connecting seat (2) by bolts (8).

3. The structure of the rigid connecting screw rod of a closed single-point press according to claim 1, Features: Weight-reducing grooves (9) are provided on both side surfaces of the extended connecting rod (1).

4. The structure of the rigid connecting screw rod of a closed single-point press according to claim 1, Features: A balancing hole (10) is provided on the side surface of the upper end of the extended connecting rod (1).

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