Overhead buffer device of punching machine

Abstract

The utility model relates to the technical field of punching equipment, and discloses an overhead buffering device of a punching machine, which comprises a buffering beam arranged on an upper beam of the punching machine, the buffering beam is connected with a sliding block below the upper beam of the punching machine through a pull rod, a longitudinal buffering adjusting rod is arranged on the buffering beam, a first longitudinal buffering cylinder is fixedly arranged on the buffering beam, and a second longitudinal buffering cylinder is fixedly arranged on the first longitudinal buffering cylinder. A second longitudinal buffering cylinder is fixedly arranged on the punching machine upper beam, the upper end of the longitudinal buffering adjusting rod is fixedly connected with a telescopic shaft of the first longitudinal buffering cylinder, the lower end of the longitudinal buffering adjusting rod is right opposite to a telescopic rod of the second longitudinal buffering cylinder, and the upper end of the pull rod is fixedly connected with the buffering beam. The lower end of the pull rod is connected with the sliding block through a transverse buffering mechanism. According to the utility model, the buffer beam connected with the sliding block and the transverse buffer mechanism are arranged to realize effective buffer of multi-directional impact, so that the buffer effect is greatly improved, the equipment stability is better, the precision is higher, the equipment abrasion and noise are smaller, and the service life is longer.

Description

TECHNICAL FIELD

[0001] The utility model relates to punch equipment technical field especially relates to a punch press upper -placed buffer device. BACKGROUND

[0002] In the field of mechanical manufacturing, the punch press is an important equipment widely used in metal plate forming processing. With the improvement of production efficiency and product quality requirements, higher requirements are put forward for the working stability and precision of the punch press. Most of the existing punch presses adopt traditional under -type or side -type buffer device, although it can meet the general production demand, but under high speed and high pressure working condition, the buffering effect of these traditional ways is limited.

[0003] And because the existing punch equipment in the plate stamping process, in order to meet the need of stamping part transverse part stamping and composite stamping process, such as stretch piece side wall and bottom punching, cutting, flanging, wave pressing and plate multi -direction bending, usually will be designed with transverse action structure. These transverse actions can be horizontal, at any angle with the direction of slider movement, from bottom to top and from inside to outside, to ensure the relative dimensional accuracy and shape tolerance of the stamping parts, and the complexity of these transverse actions makes it difficult for traditional buffer device to effectively cope with multidirectional impact, resulting in unsatisfactory buffering effect, further aggravating equipment wear and noise problem.

[0004] And the current method for solving the vibration and impact problem generated in the operation process of punch press mainly includes installing hydraulic shock absorber, spring buffer and the like. Although these methods can alleviate vibration to a certain extent, they are limited by their position layout and design principle and cannot completely solve the problem.

[0005] The utility model patent with the authorization announcement number CN204672782U discloses a kind of upper -placed buffer mechanism, by the slider and buffer beam are made into an entirety, the impact force generated in the process of blanking punching of slider, is transferred to buffer beam, at this time, a buffer cylinder is arranged on upper beam, buffer cylinder is lifted, and the impact force generated in the process of blanking punching is absorbed. Although this mechanism plus electric buffer adjusting device, buffer position can be adjusted easily, but the buffer device can only absorb longitudinal impact force, resulting in limited buffering effect. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a kind of punch press upper -placed buffer device, by setting up and the slider are connected buffer beam and transverse buffer mechanism, realize the effective buffering of multidirectional impact, greatly improve buffering effect, so that equipment stability is better, precision is higher, also effectively reduce equipment wear and noise, prolong the service life of equipment.

[0007] The above technical purpose of the utility model is realized through the following technical scheme:

[0008] A stamping machine upper buffer device, including the buffer beam of setting on the stamping machine upper beam, the buffer beam is connected with the slider below the stamping machine upper beam through the pull rod, the buffer beam is equipped with longitudinal buffer adjusting rod, the buffer beam is fixed with longitudinal buffer cylinder one, the stamping machine upper beam is fixed with longitudinal buffer cylinder two, the upper end of longitudinal buffer adjusting rod is fixed with the telescopic shaft of longitudinal buffer cylinder one, the lower end of longitudinal buffer adjusting rod is opposite with the telescopic rod of longitudinal buffer cylinder two, the upper end of pull rod is fixed with buffer beam, the lower end of pull rod is connected with slider through transverse buffer mechanism.

[0009] Through the above technical scheme, in the blanking process, the longitudinal impact force generated by the slider is transmitted to the buffer beam through the pull rod, at this time, the telescopic shaft of longitudinal buffer cylinder one equipped with the upper beam and longitudinal buffer cylinder two equipped with the buffer beam is started, drives longitudinal buffer adjusting rod to resist each other, so that longitudinal buffer cylinder one and longitudinal buffer cylinder two absorb the longitudinal impact force, at the same time, the transverse impact force generated by the slider in the process is also transmitted to the transverse buffer mechanism and absorbed by the mechanism. Therefore, the effective buffering of multi-directional impact force is realized, not only the deformation risk of the stamping machine upper beam is significantly reduced, but also the buffering effect is greatly improved through the multidimensional buffering mechanism, so that the equipment stability is better, the precision is higher, the equipment wear and noise are effectively reduced, and the service life of the equipment is prolonged.

[0010] The utility model further provides: the transverse buffer mechanism includes the buffer adjusting groove of setting in the slider top and the transverse buffer adjusting block in buffer adjusting groove, the lower end of pull rod is fixed with transverse buffer adjusting block, the transverse buffer adjusting block's transverse four arounds are equipped with transverse buffer cylinder respectively, the cylinder body of transverse buffer cylinder is fixed on transverse buffer adjusting block, the telescopic axle of transverse buffer cylinder is respectively in the horizontal sliding slot on the inboard wall of buffer adjusting groove.

[0011] Through the above technical scheme, the buffer adjusting groove and transverse buffer adjusting block design of the slider top ensure that the transverse impact force generated by the slider can act on the telescopic shaft of the transverse buffer cylinder fixed around the transverse buffer adjusting block in the buffer adjusting groove, so as to be absorbed and handled by the transverse buffer cylinder fixed around the transverse buffer adjusting block in the buffer adjusting groove, avoiding the transverse impact force generated by the slider being directly transmitted to the stamping machine upper beam, so that the equipment is more stable in the running process, and the stamping precision and efficiency are further improved.

[0012] The utility model further provides: the extension direction of the horizontal sliding groove on the inboard wall of the buffer adjusting groove is perpendicular to the telescopic direction of the telescopic shaft of the transverse buffer cylinder abutting thereto.

[0013] By adopting the technical scheme, the horizontal sliding groove can effectively avoid mutual interference between adjacent lateral buffer cylinders, ensure independent operation of each buffer cylinder, further improve the buffering effect, and meanwhile, the horizontal sliding groove can further enhance the stability of the connection between the sliding block and the lateral buffer adjusting block, ensure more rapid response of the lateral buffer cylinder during high-speed stamping, and more accurate cooperation, effectively avoid equipment vibration caused by uneven buffering, and further improve the running stability and stamping precision of the equipment.

[0014] The utility model discloses further provide that: longitudinal buffer adjusting rod and buffer beam longitudinal sliding fit.

[0015] By adopting the technical scheme, the longitudinal buffer adjusting rod and the buffer beam are in sliding fit, so that the adjustment of the extension length of the longitudinal buffer adjusting rod bottom can be realized by controlling the extension length of the extension shaft of the longitudinal buffer cylinder two, the adjustment of the longitudinal buffer position is realized, the buffering demand of different impact amplitudes can be met, and the best buffering effect can be kept under different working conditions.

[0016] The utility model discloses further provide that: the lower extreme of longitudinal buffer adjusting rod is equipped with with longitudinal buffer cylinder two's extension shaft coaxial and sliding fit's guide hole, longitudinal buffer cylinder two's extension shaft is located in guide hole and can slide up and down along guide hole.

[0017] By adopting the technical scheme,

[0018] The utility model discloses further provide that: the top of guide hole is fixed with the elastic buffer block for with longitudinal buffer cylinder two's extension shaft contact.

[0019] By adopting the technical scheme, the elastic buffer pad can not only effectively absorb the impact force in the extension process of the longitudinal buffer cylinder two, improve the buffering effect, but also can avoid the direct collision between the extension shaft of the longitudinal buffer cylinder two and the top wall of the lower end guide hole of the longitudinal buffer adjusting rod, greatly reduce the mechanical wear between the extension shaft of the longitudinal buffer cylinder two and the longitudinal buffer adjusting rod, and prolong the service life of the equipment.

[0020] The utility model discloses further provide that: the adjusting nut is arranged below the buffer beam, the locking nut is arranged above the buffer beam, and the adjusting nut and the locking nut are in threaded connection with the pull rod.

[0021] By adopting the technical scheme, the locking nut and the adjusting nut can effectively fix the relative position of the buffer beam and the pull rod, ensure that the buffer beam does not slide during the buffering movement, ensure the accuracy of the buffering position, and also can adjust the relative position of the buffer beam and the pull rod by adjusting the position of the locking nut and the adjusting nut on the pull rod, meet the buffering demand of different impact amplitudes, and greatly improve the versatility of the equipment.

[0022] The utility model discloses the beneficial effect is:

[0023] 1. The utility model discloses in the blanking and blanking process, the longitudinal impact force of slider is passed to the buffer beam through the pull rod, at this moment, the telescopic shaft of longitudinal buffer cylinder one equipped with the upper beam and the telescopic shaft of longitudinal buffer cylinder two equipped with the buffer beam starts, drives longitudinal buffer adjusting rod mutual resistance, make longitudinal buffer cylinder one and longitudinal buffer cylinder two collaborative absorption these longitudinal impact force, simultaneously, the transverse impact force of slider in this process also is passed to the transverse buffer mechanism, and is handled by this mechanism absorption. Therefore realized the effective buffer of multidirectional impact force, not only significantly reduced the deformation risk of punch upper beam, still through its multidimensional buffer mechanism, greatly improved the buffer effect, make the equipment stability better, higher precision, also effectively reduced the equipment wear and tear and noise, prolonged the service life of equipment.

[0024] 2. The utility model discloses through the buffer adjusting groove and transverse buffer adjusting block design of slider top, ensure that the transverse impact force of slider can be respectively acted on the telescopic shaft of transverse buffer cylinder fixed around transverse buffer adjusting block in buffer adjusting groove, thereby be handled by the telescopic shaft of transverse buffer cylinder fixed around transverse buffer adjusting block in buffer adjusting groove absorption, avoid the transverse impact force of slider through direct transmission to punch upper beam, make the equipment more stable in the operation process, further improved the stamping precision and efficiency.

[0025] 3. The utility model discloses the setting of horizontal sliding groove on the inboard wall of buffer adjusting groove can effectively avoid the mutual interference between adjacent transverse buffer cylinders, ensure that each buffer cylinder can independently operate, further improve the buffer effect. Meanwhile, the stability of the connection between the horizontal sliding groove and the transverse buffer adjusting block is enhanced, ensuring that the transverse buffer cylinder responds more quickly during high-speed stamping, and the synergistic effect is more accurate, effectively avoiding equipment vibration caused by uneven buffering, and further improving the running stability and stamping precision of the equipment.

[0026] 4. The utility model discloses the longitudinal buffer adjusting rod and the sliding fit in the buffer beam, so by controlling the telescopic length of longitudinal buffer cylinder one telescopic shaft can realize the adjustment of the bottom extension length of longitudinal buffer adjusting rod, thereby realizing the adjustment of the longitudinal buffer position, can satisfy the buffering demand of different impact amplitude, ensure that the equipment can maintain the best buffering effect under different working conditions.

[0027] 5. The utility model discloses through setting the elastic buffer block, not only can effectively absorb the impact force in the telescopic process of longitudinal buffer cylinder two, improve the buffer effect, but also can avoid the direct collision of the telescopic shaft of longitudinal buffer cylinder two and the top wall of longitudinal buffer adjusting rod lower end guide hole, greatly reduce the mechanical wear and tear between the telescopic shaft of longitudinal buffer cylinder two and longitudinal buffer adjusting rod, prolong the service life of equipment. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of 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.

[0029] Fig. 1 This is a longitudinal structural diagram of a top-mounted buffer device for a stamping machine according to the present invention.

[0030] Fig. 2 This is a schematic diagram of the transverse structure of the transverse buffer mechanism in the upper-mounted buffer device of a stamping machine according to the present invention.

[0031] In the diagram, 1. Upper beam; 2. Buffer beam; 3. Tie rod; 4. Slider; 5. Longitudinal buffer adjustment rod; 6. Longitudinal buffer cylinder one; 7. Longitudinal buffer cylinder two; 8. Transverse buffer mechanism; 81. Buffer adjustment groove; 82. Transverse buffer adjustment block; 83. Transverse buffer cylinder; 84. Horizontal slide; 9. Guide hole; 10. Elastic buffer block; 11. Adjusting nut; 12. Locking nut. Detailed Implementation

[0032] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0033] like Figs. 1-2 As shown, a top-mounted buffer device for a stamping press includes a buffer beam 2 mounted on the upper beam 1 of the stamping press. The buffer beam 2 is connected to a slider 4 below the upper beam 1 of the stamping press via a tie rod 3. A longitudinal buffer adjusting rod 5 is provided on the buffer beam 2. A first longitudinal buffer cylinder 6 is fixedly mounted on the buffer beam 2. A second longitudinal buffer cylinder 7 is fixedly mounted on the upper beam 1 of the stamping press. The upper end of the longitudinal buffer adjusting rod 5 is fixedly connected to the telescopic shaft of the first longitudinal buffer cylinder 6. The lower end of the longitudinal buffer adjusting rod 5 is directly opposite to the telescopic rod of the second longitudinal buffer cylinder 7. The upper end of the tie rod 3 is fixedly connected to the buffer beam 2. The lower end of the tie rod 3 is connected to the slider 4 via a transverse buffer mechanism 8.

[0034] Further, the transverse buffering mechanism 8 comprises a buffering adjusting groove 81 arranged on the top of the sliding block 4 and a transverse buffering adjusting block 82 arranged in the buffering adjusting groove 81, the lower end of the pull rod 3 is fixedly connected with the transverse buffering adjusting block 82, the transverse buffering adjusting block 82 is provided with transverse buffering cylinders 83 around the transverse four sides respectively, the cylinder body of the transverse buffering cylinder 83 is fixed on the transverse buffering adjusting block 82, and the telescopic shafts of the transverse buffering cylinders 83 are respectively arranged in horizontal sliding grooves 84 abutting against the inner side walls of the buffering adjusting groove 81.

[0035] Further, the extension direction of the horizontal sliding groove 84 on the inner side wall of the buffering adjusting groove 81 is perpendicular to the extension direction of the telescopic shaft of the transverse buffering cylinder 83 abutting against the horizontal sliding groove 84.

[0036] Further, the longitudinal buffering adjusting rod 5 is in longitudinal sliding fit with the buffering beam 2.

[0037] Further, the lower end of the longitudinal buffering adjusting rod 5 is provided with a guide hole 9 coaxially and in sliding fit with the telescopic shaft of the longitudinal buffering cylinder two 7, the telescopic shaft of the longitudinal buffering cylinder two 7 is arranged in the guide hole 9 and can slide up and down in the guide hole 9.

[0038] Further, the top of the guide hole is fixed with an elastic buffering block 10 for contacting with the telescopic shaft of the longitudinal buffering cylinder two 7.

[0039] Further, the pull rod 3 is provided with an adjusting nut 11 below the buffering beam 2 and a locking nut 12 above the buffering beam 2, and the adjusting nut 11 and the locking nut 12 are in threaded connection with the pull rod 3.

[0040] The working principle of the utility model is as follows: in the blanking and falling process, the longitudinal impact force generated by the sliding block 4 is transmitted to the buffering beam 2 through the pull rod 3, at this time, the telescopic shafts of the longitudinal buffering cylinder one 6 and the longitudinal buffering cylinder two 7 equipped with the upper beam 1 and the buffering beam 2 are started, the longitudinal buffering adjusting rod 5 is driven to abut against each other, the longitudinal buffering cylinder one 6 and the longitudinal buffering cylinder two 7 are cooperated to absorb the longitudinal impact force, simultaneously, the transverse impact force generated by the sliding block 4 in the process is also transmitted to the telescopic shafts of the transverse buffering cylinders 83 fixed around the transverse buffering adjusting block 82 in the buffering adjusting groove 81 of the transverse buffering mechanism 8 and is absorbed and treated by the transverse buffering cylinders 83, so that the effective buffering of the impact force in multiple directions is realized, not only the deformation risk of the upper beam 1 of the punching machine is obviously reduced, but also the buffering effect is greatly improved through the multi-dimensional buffering mechanism, the device stability is better, the precision is higher, the device wear and noise are effectively reduced, and the service life of the device is prolonged.

Claims

1. A top-mounted buffer device for a stamping press, characterized in that: The system includes a buffer beam (2) mounted on the upper beam (1) of the press. The buffer beam (2) is connected to the slider (4) below the upper beam (1) of the press via a tie rod (3). The buffer beam (2) is provided with a longitudinal buffer adjustment rod (5). A longitudinal buffer cylinder one (6) is fixedly mounted on the buffer beam (2). A longitudinal buffer cylinder two (7) is fixedly mounted on the upper beam (1) of the press. The upper end of the longitudinal buffer adjustment rod (5) is fixedly connected to the telescopic shaft of the longitudinal buffer cylinder one (6). The lower end of the longitudinal buffer adjustment rod (5) is directly opposite to the telescopic rod of the longitudinal buffer cylinder two (7). The upper end of the tie rod (3) is fixedly connected to the buffer beam (2). The lower end of the tie rod (3) is connected to the slider (4) via a transverse buffer mechanism (8).

2. The press top-mounted buffer device according to claim 1, characterized in that: The transverse buffer mechanism (8) includes a buffer adjustment groove (81) set on the top of the slider (4) and a transverse buffer adjustment block (82) located in the buffer adjustment groove (81). The lower end of the pull rod (3) is fixedly connected to the transverse buffer adjustment block (82). A transverse buffer cylinder (83) is provided on the transverse periphery of the transverse buffer adjustment block (82). The cylinder body of the transverse buffer cylinder (83) is fixed on the transverse buffer adjustment block (82). The telescopic shaft of the transverse buffer cylinder (83) is respectively in the horizontal sliding groove (84) abutting against the inner side wall of the buffer adjustment groove (81).

3. The press press top-mounted buffer device according to claim 2, characterized in that: The extension direction of the horizontal slide groove (84) on the inner wall of the buffer adjustment groove (81) is perpendicular to the extension direction of the extension shaft of the transverse buffer cylinder (83) that it abuts.

4. The press top-mounted buffer device according to claim 3, characterized in that: The longitudinal buffer adjustment rod (5) and the buffer beam (2) are longitudinally slidingly engaged.

5. A top-mounted buffer device for a stamping press according to claim 4, characterized in that: The lower end of the longitudinal buffer adjustment rod (5) is provided with a guide hole (9) that is coaxial with and slidably fitted with the telescopic shaft of the longitudinal buffer cylinder (7). The telescopic shaft of the longitudinal buffer cylinder (7) is located in the guide hole (9) and can slide up and down along the guide hole (9).

6. A top-mounted buffer device for a stamping press according to claim 5, characterized in that: The top of the guide hole (9) is fixed with an elastic buffer block (10) for contacting the telescopic shaft of the longitudinal buffer cylinder (7).

7. A top-mounted buffer device for a stamping press according to claim 1, characterized in that: The pull rod (3) is provided with an adjusting nut (11) below the buffer beam (2), and a locking nut (12) is provided above the buffer beam (2). Both the adjusting nut (11) and the locking nut (12) are threadedly connected to the pull rod (3).

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