CN219520144U - Buffer structure of press - Google Patents

Abstract

The utility model belongs to the technical field of press machine buffer structures, in particular to a press machine buffer structure, which comprises a main board; the top of the main board is provided with a buffer device; a fixed seat is welded at the top of the main board near the vertical plate of the fixed frame; the top of the fixed seat is provided with a fixed shaft; a lantern ring is sleeved outside the section of the fixed shaft; a first spring is arranged at the top of the fixed seat; a fixed block is welded at the middle part of the cross rod; the bottom of the fixed block is provided with a stamping plate; a telescopic rod is arranged at the bottom of the hydraulic cylinder; the end part of the telescopic rod is connected with the top part of the fixed block; a structural cavity is formed in the connecting box; the bottom of the structural cavity is communicated with the outside; a second spring is fixedly connected to the top of the structural cavity; a sliding block is fixedly connected to the bottom of the second spring; through buffer, not only good buffering effect has been done, also makes the motion track of stamping structure can not change, has improved the punching press precision.

Description

Buffer structure of press

Technical Field

The utility model relates to the technical field of press buffer structures, in particular to a press buffer structure.

Background

The press is a universal press with exquisite structure, has the characteristics of wide application, high production efficiency and the like, can be widely applied to cutting, punching, blanking, bending, riveting, forming and other processes, and can be used for processing parts by applying strong pressure to metal blanks to enable the metals to be subjected to plastic deformation and fracture;

the existing press consists of a stamping head, a hydraulic cylinder, an operating platform and other structures, the press drives the stamping head to stamp through the hydraulic cylinder, a fitting to be stamped is placed at the lower end of the stamping head, and the stamping head is used for applying force to the fitting to be stamped in a contact manner so as to achieve the stamping effect;

however, when the stamping force is too large, the end face of the accessory to be stamped is often damaged at the moment of contacting with the accessory to be stamped, and meanwhile, the stamping head for applying force and other mechanical structures on the press machine are also damaged in stamping, so that the service effect is affected, the service life of the stamping machine is also reduced, and the phenomenon of deflection occurs in the process of pressing after the stamping machine is used for a certain time, so that the precision of stamping operation is reduced; therefore, a buffer structure of a press is proposed for the above-mentioned problems.

Disclosure of Invention

In order to overcome the defects of the prior art and solve the existing problems of the buffer structure of the press, the utility model provides the buffer structure of the press.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to a buffer structure of a press machine, which comprises a main board; the two ends of the bottom of the main board are provided with supporting frames; the bottom of the supporting frame is fixedly connected with a trapezoid cushion block; the top of the main board is provided with a buffer device; the buffer device comprises a fixing frame; a fixing frame is welded at the top of the main board; a fixed seat is welded at the top of the main board near the vertical plate of the fixed frame; the top of the fixed seat is provided with a fixed shaft; the top of the fixed shaft is connected to the bottom of the transverse plate of the fixed frame;

a lantern ring is sleeved outside the section of the fixed shaft; a first spring is arranged at the top of the fixed seat; the first spring is wound and sleeved outside the section of the fixed shaft; the lantern ring is connected with the top of the first spring; a cross rod is welded between the lantern rings; a fixed block is welded at the middle part of the cross rod; the bottom of the fixed block is provided with a stamping plate; the horizontal height of the bottom end face of the stamping plate is lower than that of the bottom end face of the lantern ring; the buffer effect on the stamping plate is realized.

Preferably, a through hole is formed in the center of the top of the transverse plate of the fixing frame; a hydraulic cylinder is arranged at the top of the transverse plate of the fixing frame; a telescopic rod is arranged at the bottom of the hydraulic cylinder; the end part of the telescopic rod can penetrate through the transverse plate of the fixing frame to extend out; the end part of the telescopic rod is connected with the top part of the fixed block; so that the stamping plate can realize the stamping effect.

Preferably, the width of the stamping plate is smaller than the distance between the cambered surface edges of the fixing seat and is not contacted with the fixing seat; the diameter of the motion track of the first spring is smaller than the section diameter of the fixed seat; the section diameter of the fixed seat is equal to the section diameter of the lantern ring; ensuring the smooth operation of stamping.

Preferably, a connecting seat is welded on the outer cambered surface of the lantern ring; the bottom of the connecting seat is provided with a connecting box; a structural cavity is formed in the connecting box; the bottom of the structural cavity is communicated with the outside; a second spring is fixedly connected to the top of the structural cavity; a sliding block is fixedly connected to the bottom of the second spring; the buffer acting force is improved, and the buffer effect is ensured.

Preferably, the horizontal height of the bottom end face of the sliding block is lower than the horizontal height of the bottom end face of the stamping plate in an inactive state; the vertical height between the bottom end face of the sliding block and the bottom end face of the stamping plate is larger than that of the fixing seat; the distance between the inner side of the vertical plate of the fixing frame and the edge position of the fixing seat is larger than the width of the connecting box; the stamping plate is ensured to smoothly realize the stamping effect.

Preferably, grooves are formed in the top of the main board at equal intervals; the opening position of the groove is positioned right below the stamping plate; the sliding of the fitting to be punched is avoided.

The utility model has the advantages that:

1. according to the utility model, through the structural design of the buffer device, the accessory to be punched is placed on the groove of the main board, the hydraulic cylinder is opened, the telescopic rod drives the fixed block to move, so that the punching plate and the cross rod move downwards, the lantern ring moves downwards along the fixed shaft, the lantern ring is gradually subjected to larger and larger upward thrust under the action of the first spring, the downward movement speed of the punching plate is slowed down, the buffer effect of punching operation is achieved, the effect that the accessory to be punched is damaged due to the fact that the punching speed of the punching plate is too fast is avoided, the movement track of the punching structure is not changed, the punching precision is improved, and the punching quality of the punching machine is ensured.

2. According to the utility model, through the structural design of the connecting seat, the connecting box and the like, in the downward movement process of the stamping plate, the lantern ring drives the connecting seat to move downwards along with the connecting seat, after the sliding block touches the top end face of the main board, the stamping plate still moves downwards, and under the action of the second spring, the upward buffering force is improved, and the structure is simple and the effect is obvious.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of an isometric structure of a first embodiment;

FIG. 2 is a schematic cross-sectional view of a fixing frame according to the first embodiment;

FIG. 3 is a schematic cross-sectional view of a connecting box according to the first embodiment;

FIG. 4 is an enlarged schematic view of the structure of FIG. 1A according to the first embodiment;

FIG. 5 is an enlarged schematic view of the structure of FIG. 1B according to the first embodiment;

fig. 6 is a schematic structural diagram of an isometric view of a second embodiment.

In the figure: 1. a main board; 2. a support frame; 3. a trapezoid cushion block; 401. a fixing frame; 402. a through hole; 403. a fixing seat; 404. a fixed shaft; 405. a collar; 406. a first spring; 407. a cross bar; 408. a fixed block; 409. a stamping plate; 410. a hydraulic cylinder; 411. a telescopic rod; 412. a connecting seat; 413. a connection box; 414. a structural cavity; 415. a second spring; 416. a sliding block; 417. a groove; 5. a gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

Example 1

Referring to fig. 1-5, a buffer structure of a press includes a main board 1; the two ends of the bottom of the main board 1 are provided with supporting frames 2; the bottom of the supporting frame 2 is fixedly connected with a trapezoid cushion block 3; the top of the main board 1 is provided with a buffer device; the buffer device comprises a fixing frame 401; the top of the main board 1 is welded with a fixing frame 401; a fixed seat 403 is welded at the top of the main board 1 near the vertical board of the fixed frame 401; a fixed shaft 404 is arranged at the top of the fixed seat 403; the top of the fixed shaft 404 is connected to the bottom of the transverse plate of the fixed frame 401;

collar 405 is sleeved outside the section of fixed shaft 404; a first spring 406 is arranged at the top of the fixed seat 403; a first spring 406 is wound around and sleeved outside the section of the fixed shaft 404; collar 405 is attached to the top of spring number one 406; a cross bar 407 is welded between the collars 405; a fixed block 408 is welded at the middle part of the cross bar 407; the bottom of the fixed block 408 is provided with a stamping plate 409; the bottom end face of the stamping plate 409 is at a lower level than the bottom end face of the collar 405; a through hole 402 is formed in the center of the top of the transverse plate of the fixing frame 401; a hydraulic cylinder 410 is arranged at the top of the transverse plate of the fixing frame 401; a telescopic rod 411 is arranged at the bottom of the hydraulic cylinder 410; the end of the telescopic rod 411 may extend through the cross plate of the fixing frame 401; the end of the telescopic rod 411 is connected with the top of the fixed block 408; the width of the stamping plate 409 is smaller than the distance between the cambered surface edges of the fixed seat 403 and is not contacted with the fixed seat 403; the diameter of the movement track of the first spring 406 is smaller than the section diameter of the fixed seat 403; the cross-sectional diameter of the anchor seat 403 is equal to the cross-sectional diameter of the collar 405; grooves 417 are formed on the top of the main board 1 at equal intervals; the opening position of the groove 417 is located right below the punching plate 409; the utility model is characterized in that the press can be widely applied to processes such as cutting, punching, blanking, bending, riveting and forming, and the like, the metal blank is subjected to strong pressure to enable plastic deformation and fracture to be processed into parts, however, when the punching force is too large, the end face of the part to be punched is often damaged at the moment of contact with the part to be punched, meanwhile, the punching head applying force and other mechanical structures on the press are also damaged in punching, the service life of the punching machine is reduced, the punching machine is used for a certain time, the offset phenomenon can occur in the pressing process, the precision of punching operation is reduced, the utility model is used through a buffer device, when the punching operation is performed, the part to be punched is placed on a groove 417 of a main board 1, a hydraulic cylinder 410 is opened, a telescopic rod 411 drives a fixed block 408 to move, a sleeve ring 405 moves downwards along a fixed shaft 404, the sleeve ring 404 moves downwards, the sleeve ring 406 is also influenced downwards, the service life of the punching machine is reduced, the sleeve ring 405 is also influenced by the spring 406, the impact force of the sleeve ring 405 is greatly influenced, the punching speed of the part is not influenced, the punching quality of the part is gradually reduced, the punching operation is prevented from being damaged, and the punching speed of the part is gradually improved, and the punching precision of the part is prevented from being damaged due to the fact that the punching structure is influenced.

A connecting seat 412 is welded on the outer arc surface of the lantern ring 405; the bottom of the connecting seat 412 is provided with a connecting box 413; the inside of the connecting box 413 is provided with a structural cavity 414; the bottom of the structural cavity 414 is communicated with the outside; a second spring 415 is fixedly connected to the top of the structural cavity 414; a sliding block 416 is fixedly connected to the bottom of the second spring 415; the bottom end surface of the sliding block 416 is lower than the bottom end surface of the punching plate 409 in the inactive state; the vertical height between the bottom end surface of the sliding block 416 and the bottom end surface of the punching plate 409 is greater than the vertical height of the fixing seat 403; the distance between the inner side of the vertical plate of the fixing frame 401 and the edge position of the fixing seat 403 is larger than the width of the connecting box 413; during operation, in the downward movement process of the stamping plate 409, the collar 405 drives the connecting seat 412 to move downward along with the downward movement, after the sliding block 416 touches the top end face of the main board 1, the stamping plate 409 still moves downward, and under the action of the second spring 415, the upward buffering force is improved, and the structure is simple and the effect is obvious.

Example two

Referring to fig. 6, in a first comparative example, as another embodiment of the present utility model, a spacer 5 may be added to the bottom of the trapezoid spacer 3; during operation, the device can be ensured to have a more stable state in the acting process.

Working principle: the press is a universal press with exquisite structure, has the characteristics of wide application, high production efficiency and the like, can be widely applied to processes of cutting, punching, blanking, bending, riveting, forming and the like, and can be used for processing parts by applying strong pressure to metal blanks to enable the metals to be plastically deformed and broken, however, when the punching strength is overlarge, the end face of the parts to be punched is always damaged at the moment of contacting with the parts to be punched, and simultaneously, the punching head applying force and other mechanical structures on the press are also damaged by punching, the service effect is influenced, the service life of the punching machine is also reduced, and the phenomenon of deflection occurs in the pressing process after the punching machine is used for a certain time, the utility model has the advantages that the precision of the stamping operation is reduced, the buffer device is used for acting, when the stamping operation is carried out, the accessory to be stamped is placed on the groove 417 of the main board 1, the hydraulic cylinder 410 is opened, the telescopic rod 411 drives the fixed block 408 to move, so that the stamping plate 409 and the cross rod 407 move downwards, the lantern ring 405 moves downwards along the fixed shaft 404, the lantern ring 405 is gradually subjected to larger and larger upward thrust under the action of the first spring 406, the downward movement speed of the stamping plate 409 is slowed down, the buffer effect of the stamping operation is achieved, the damage effect of the accessory to be stamped caused by the too high stamping speed of the stamping plate 409 is avoided, the movement track of the stamping structure is not changed, the stamping precision is improved, and the stamping quality of the stamping machine is ensured; in the downward movement process of the stamping plate 409, the collar 405 drives the connecting seat 412 to move downward, after the sliding block 416 touches the top end surface of the main board 1, the stamping plate 409 still moves downward, and under the action of the second spring 415, the upward buffering force is improved, and the structure is simple and the effect is obvious.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. The buffer structure of the press comprises a main board (1); the two ends of the bottom of the main board (1) are provided with supporting frames (2); the bottom of the supporting frame (2) is fixedly connected with a trapezoid cushion block (3); the top of the main board (1) is provided with a buffer device; the method is characterized in that: the buffer device comprises a fixing frame (401); a fixing frame (401) is welded at the top of the main board (1); a fixed seat (403) is welded at the top of the main board (1) near the vertical board of the fixed frame (401); a fixed shaft (404) is arranged at the top of the fixed seat (403); the top of the fixed shaft (404) is connected to the bottom of the transverse plate of the fixed frame (401);

a collar (405) is sleeved outside the section of the fixed shaft (404); a first spring (406) is arranged at the top of the fixed seat (403); the first spring (406) is wound and sleeved outside the section of the fixed shaft (404); the lantern ring (405) is connected with the top of the primary spring (406); a cross rod (407) is welded between the lantern rings (405); a fixed block (408) is welded at the middle part of the cross rod (407); a punching plate (409) is arranged at the bottom of the fixed block (408); the bottom end face of the stamping plate (409) is lower than the bottom end face of the collar (405).

2. A press cushioning structure according to claim 1, wherein: a through hole (402) is formed in the center of the top of the transverse plate of the fixing frame (401); a hydraulic cylinder (410) is arranged at the top of the transverse plate of the fixing frame (401); a telescopic rod (411) is arranged at the bottom of the hydraulic cylinder (410); the end part of the telescopic rod (411) can penetrate through the transverse plate of the fixing frame (401) to extend out; the end of the telescopic rod (411) is connected with the top of the fixed block (408).

3. A press cushioning structure according to claim 2, wherein: the width of the stamping plate (409) is smaller than the distance between the cambered surface edges of the fixing seat (403), and the stamping plate is not contacted with the fixing seat (403); the diameter of the motion track of the first spring (406) is smaller than the section diameter of the fixed seat (403); the cross-sectional diameter of the fixing seat (403) is equal to the cross-sectional diameter of the lantern ring (405).

4. A press cushioning structure according to claim 3, wherein: a connecting seat (412) is welded on the outer cambered surface of the lantern ring (405); a connecting box (413) is arranged at the bottom of the connecting seat (412); a structural cavity (414) is formed in the connecting box (413); the bottom of the structural cavity (414) is communicated with the outside; a second spring (415) is fixedly connected to the top of the structural cavity (414); the bottom of the second spring (415) is fixedly connected with a sliding block (416).

5. The press cushioning structure according to claim 4, wherein: the horizontal height of the bottom end face of the sliding block (416) is lower than the horizontal height of the bottom end face of the stamping plate (409) in an inactive state; the vertical height between the bottom end surface of the sliding block (416) and the bottom end surface of the stamping plate (409) is larger than that of the fixing seat (403); the distance between the inner side of the vertical plate of the fixing frame (401) and the edge position of the fixing seat (403) is larger than the width of the connecting box (413).

6. The press cushioning structure according to claim 4, wherein: grooves (417) are formed in the top of the main board (1) at equal intervals; the opening position of the groove (417) is positioned right below the stamping plate (409).