CN211386682U

CN211386682U - Press brake with pressure limitation

Info

Publication number: CN211386682U
Application number: CN202020019717.1U
Authority: CN
Inventors: 曾海英
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-09-01
Anticipated expiration: 2030-01-06

Abstract

The utility model provides a bending press with pressure restriction relates to chip processing production field, the on-line screen storage device comprises a base, support arm and linking arm, the vertical interlude of linking arm has the depression bar, transversely wear to be equipped with the connecting rod, be provided with the driving medium in the linking arm, reciprocate through connecting rod drive depression bar, the storage tank has been seted up in the linking arm, the depression bar is located and is provided with the stopper on the lateral wall of storage tank, the vertical lead screw that is provided with in the storage tank, the stopper moves down finally can conflict the upper end of lead screw, lead screw outside cover is equipped with a carousel, carousel and lead screw threaded connection, still be provided with restriction lead screw pivoted restriction piece in the storage tank. The utility model provides a pair of bending press with pressure restriction can control the depression bar and push down the displacement, prevents that the stitch from being damaged by excessive pressure.

Description

Press brake with pressure limitation

Technical Field

The utility model relates to a chip processing production field especially relates to a bending press with pressure restriction.

Background

In the production process of the chip, pins need to be bent, so that the chip can be conveniently and subsequently mounted on a PCB, and the process requirement in the insertion process is met. The traditional process is purely manual bending, a pressing sheet is used for bending a pin, the physical strength of workers can be consumed more quickly by the pressing mode, and the low efficiency is caused.

For this reason, a press bending apparatus has been developed, which generally includes a pressing rod and a driving rod, and the pressing rod is driven by the driving rod to move down to press and bend the chip pins. In order to reduce the manufacturing cost of equipment and improve the safety, the force application mode of the driving rod generally adopts manual rotation of the driving rod, but the force application size cannot be controlled, and if the force application is too large, the pins are easily deformed or even broken; the force is too small, the stitch deformation is not in place, and the processing technology requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art to a press brake with pressure restriction is provided, can control the depression bar and push down the displacement, prevents that the stitch from being damaged by excessive pressure.

In order to realize the above-mentioned purpose, the utility model provides a bending press with pressure restriction, including base, support arm and linking arm, the vertical interlude of linking arm has the depression bar, transversely wears to be equipped with the connecting rod, be provided with the driving medium in the linking arm, reciprocate through connecting rod drive depression bar, the storage tank has been seted up in the linking arm, the depression bar is located and is provided with the stopper on the lateral wall of storage tank, the vertical lead screw that is provided with in the storage tank, the stopper moves down finally can contradict the upper end of lead screw, lead screw outside cover is equipped with a carousel, carousel and lead screw threaded connection, still be provided with restriction lead screw pivoted restriction piece in the storage tank, reciprocate through the carousel drive lead screw, adjust the height of.

Furthermore, the turntable is circular, and a part of the turntable penetrates through the side wall of the connecting arm, so that the part of the turntable is in an external contact state.

Furthermore, the limiting piece comprises a convex block and a sliding groove, the sliding groove is formed in the length direction of the screw rod, the convex block is arranged on the side wall of the accommodating groove, and one end of the convex block is accommodated in the sliding groove.

Further, the transmission part comprises a rack and a gear which are arranged on the opposite side of the pressure lever where the limiting block is arranged, the gear and the connecting rod are coaxially arranged, and the gear is meshed with the rack.

Furthermore, one end of the connecting rod, penetrating out of the connecting arm, is provided with a driving rod, and the driving rod is connected with the connecting rod to form an L shape.

The utility model provides a pair of bending press with pressure restriction, through simple and easy equipment processing chip stitch bending, improve work efficiency, reduce the cost of labor, and the standing groove can fix a position the chip, makes the depression bar lower extreme aim at the bending position of stitch, and the chip stitch that processes out is of high quality. Through setting up lead screw and stopper, the height that moves down of restriction depression bar to prevent that the stitch from being crushed, and lead screw height-adjustable, make the height-adjustable that the depression bar can be down, thereby the chip stitch that adapts to different models bends, enlarges application range.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the following provides a detailed description of the present invention with reference to the embodiments of the present invention and the accompanying drawings.

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic sectional view of the connecting arm of the present embodiment;

fig. 3 is an enlarged view of a portion a in fig. 2.

The reference numerals in the drawings are explained below.

100. A base; 200. a support arm; 300. a connecting arm; 310. a containing groove; 400. a pressure lever; 510. a limiting block; 520. a screw rod; 530. a turntable; 610. a bump; 620. a chute; 710. a gear; 720. a rack; 800. a drive rod; 810. a connecting rod; 900. a work table; 910. and (6) placing the groove.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-3, a press brake with pressure limitation includes a base 100, a supporting arm 200 and a connecting arm 300, wherein a worktable 900 for placing a chip is arranged on the base 100, a placing slot 910 for placing a chip is arranged on the upper surface of the worktable 900, and the shape and size of the placing slot 910 are adapted to the shape and size of the chip, so that the chip can be just placed therein.

The supporting arm 200 is vertically arranged at one side of the base 100, the connecting arm 300 is transversely arranged at the upper end of the supporting arm 200, a pressure lever 400 is vertically inserted into one end of the connecting arm 300 far away from the supporting arm 200, a connecting rod 810 is transversely inserted into the connecting arm 300, a containing groove 310 is formed in the connecting arm 300, and the pressure lever 400 and the connecting rod 810 both penetrate through the containing groove 310. The transmission member is disposed in the accommodation groove 310. Through the transmission of the transmission member, the force applied to the connecting rod 810 to rotate the connecting rod 810 is transmitted to the pressing rod 400, so that the pressing rod 400 moves downwards, and the chip pins are bent at the lower end of the pressing rod 400. Compared with the traditional pure manual bending, the force application mode is changed.

The side wall of the pressure lever 400 in the accommodating groove 310 is provided with a limit block 510, the limit block 510 is fixedly connected with the pressure lever 400, moves up and down along with the pressure lever 400, and the limit block 510 is always positioned in the accommodating groove 310 in the process that the pressure lever 400 moves up and down. A screw rod 520 is vertically arranged in the accommodating groove 310, and the end of the limiting block 510 is located right above the upper end of the screw rod 520. During the process that the limiting block 510 moves downwards along with the pressing rod 400, the limiting block 510 will eventually abut against the upper end of the screw 520, and when the limiting block 510 abuts against the upper end of the screw 520, it indicates that the pressing rod 400 is at the lowest position that can be reached. When the rotating force applied to the connecting rod 810 is too large, the screw rod 520 abuts against the limiting block 510, so that the pressing rod 400 cannot excessively move downwards, chip pins are protected from being crushed by the pressing rod 400, and the bending quality of the pins is ensured.

The thickness of the chips of different models is different, and the requirement on the bending degree of pins is also different. The minimum displacement requirements that can be achieved for the plunger 400 are also inconsistent. In order to expand the application range of the press brake provided by the embodiment. A circular turntable 530 is sleeved outside the screw rod 520, the turntable 530 is in threaded connection with the screw rod 520, and a limiting part for limiting the rotation of the screw rod 520 is further arranged in the accommodating groove 310. The rotation of the dial 530 may move the screw 520 restricted from rotating up and down, thereby adjusting the height of the upper end of the screw 520. If the screw rod 520 moves upwards, the space for the limiting block 510 to move downwards is reduced, the lowest height which can be reached by the lower end of the pressing rod 400 is increased, and the deformation degree of the pins is reduced. The screw rod 520 moves downwards, the downwards moving space of the limiting block 510 is enlarged, the lowest height which can be reached by the lower end of the pressing rod 400 is woven to be low, and the deformation degree of the stitches is large.

The limiting member includes a protrusion 610 and a sliding groove 620, the sliding groove 620 is formed at the lower end of the screw rod 520 along the length direction of the screw rod 520, the protrusion 610 is disposed on the side wall of the receiving groove 310, and one end of the protrusion is received in the sliding groove 620. The rotation of the screw 520 is restricted by the interference of the protrusion 610 with the side wall of the slide groove 620, while allowing the screw 520 to move up and down.

The circular dial 530 has a portion that extends beyond the outer side wall of the connecting arm 300 such that the portion of the dial 530 is in an externally accessible state. A portion of the rotary plate 530 is exposed to the outside, which facilitates applying a rotational force to the rotary plate 530, i.e., facilitates adjusting the height of the wire 520. It should be noted that, in particular, an external force is applied to the screw 520 from the upper end of the screw 520 to rotate the turntable 530, and the screw 520 moves downward, but this requires a large force. In the present embodiment, the lower end of the pressing rod 400 will contact the pin and bend it, and will remove a part of the force, and the force itself applied to the pressing rod 400 will not be too large, and even if the force is too large, the force that the screw 520 pushes the rotating disc 530 is unlikely to be reached.

One end of the connecting rod 810, which penetrates out of the connecting arm 300, is connected with a driving rod 800 for driving the connecting rod 810 to rotate. The driving rod 800 is connected with a connecting rod 810 in an L shape. This facilitates the application of external forces by the connecting rod 810.

The chip is placed on the placing groove 910 of the workbench 900, the positions of the pins needing to be bent are aligned to the lower end of the pressing rod 400, the lowest end of the pressing rod 400 forms a flat strip shape, and the bent positions of all the pins can form a line. Then, the driving rod 800 drives the connecting rod 810 to rotate, the connecting rod 810 transmits force to the pressing rod 400 through transmission of the transmission part, the pressing rod 400 moves downwards, the pins are bent, finally the pressing rod 400 moves upwards, and the chip is taken out to complete bending of the pins. Bending of chip stitch is helped through simple and easy equipment, improves work efficiency, reduces the cost of labor, and standing groove 910 can fix a position the chip, makes the depression bar 400 lower extreme aim at the position of bending of stitch, and the chip stitch that processes out is of high quality.

The transmission member includes a rack 720 and a gear 710, the rack 720 is disposed on the other side of the pressing rod 400 opposite to the limiting block 510, and the rack 720 is not moved outside the accommodating groove 310 and is always located in the accommodating groove 310 in the process of moving the pressing rod 400 up and down. The gear 710 and the connecting rod 810 are coaxially arranged, the gear 710 and the rack 720 are mutually matched, the gear 710 is fixedly connected with the connecting rod 810, the rotating connecting rod 810 drives the gear 710 to rotate, the gear 710 rotates to drive the rack 720 to move, and therefore the pressing rod 400 is driven to move up and down.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a press brake with pressure restriction, includes base, support arm and linking arm, its characterized in that, the vertical interlude of linking arm has the depression bar, transversely wears to be equipped with the connecting rod, be provided with the driving medium in the linking arm, reciprocate through connecting rod drive depression bar, the storage tank has been seted up in the linking arm, the depression bar is provided with the stopper on being located the lateral wall in the storage tank, the vertical lead screw that is provided with in the storage tank, the stopper moves down finally can contradict the upper end of lead screw, lead screw outside cover is equipped with a carousel, carousel and lead screw threaded connection, still be provided with restriction lead screw pivoted restriction piece in the storage tank, reciprocate, adjust through carousel drive lead screw the height of.

2. The press brake with pressure limiting of claim 1, wherein the turntable is circular and a portion of the turntable extends through the side wall of the connecting arm to provide external contact with the portion of the turntable.

3. The press brake according to claim 2, wherein the limiting member comprises a protrusion and a slot, the slot is formed along the length of the screw, the protrusion is disposed on a side wall of the receiving groove, and one end of the protrusion is received in the slot.

4. A press brake with pressure limitation according to claim 3, characterized in that the transmission member comprises a rack and a pinion arranged on the opposite side of the pressure bar to the stop, the pinion being arranged coaxially with the connecting rod, the pinion engaging with the rack.

5. The press brake with pressure limitation of claim 4, wherein the end of the connecting rod, which penetrates out of the connecting arm, is provided with a driving rod, and the driving rod and the connecting rod are connected to form an L shape.