CN213559503U

CN213559503U - Bending die for prefabricated blank of medical handle piece

Info

Publication number: CN213559503U
Application number: CN202022464297.0U
Authority: CN
Inventors: 邱莎莎
Original assignee: Qingdao Tianhu Metal Co ltd
Current assignee: Qingdao Tianhu Metal Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-06-29
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses a mould of bending of prefabricated base of medical handle spare, including last mould and bed die, go up the lower wall fixedly connected with reference column of mould and the mechanism of bending, the spout has been seted up to the upper wall of bed die, the inside wall fixedly connected with of spout preheats mechanism and positioning mechanism, the inside wall of spout is seted up flutedly and through-hole, the locating hole has been seted up to the upper wall of bed die, the bar hole has been seted up to the lateral wall of bed die, this device has set up preheating mechanism at its inner chamber of bed die, make its medical handle spare heat the position that need bend before bending, make the not fragile plasticity of its handle spare increase, make it when bending with break, this device still can rotate the commentaries on classics piece through the hand wheel after finishing bending, the reference column jack-up handle spare is unloaded, make its positioning mechanism can be when fixing a position handle spare, it is more convenient to.

Description

Bending die for prefabricated blank of medical handle piece

Technical Field

The utility model relates to a preformed blank technical field that bends specifically is the mould of bending of preformed blank of medical handle spare.

Background

The metal plate is elastically deformed under the pressure of an upper die or a lower die of a bending machine, then plastic deformation is carried out, the plate is freely bent at the beginning stage of the plastic bending, along with the pressure applied to the plate by the upper die or the lower die, the plate is gradually close to the inner surface of a V-shaped groove of the lower die, the curvature radius and the bending force arm are gradually reduced, the pressing is continued until the stroke is ended, the upper die and the lower die are in three-point close full contact with the plate, the V-shaped bending is completed at the moment, the bending is commonly called, in a medical facility, some handle pieces need to be bent at high precision, but the handle pieces are easily damaged when the existing bending die is used for bending, and the handle pieces are deformed or broken.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a bending die of a medical handle prefabricated blank to solve the problem provided in the background technology.

In order to achieve the above object, the utility model provides a following technical scheme: the bending die for the medical handle part prefabricated blank comprises an upper die and a lower die, wherein a positioning column and a bending mechanism are fixedly connected to the lower wall of the upper die, a sliding groove is formed in the upper wall of the lower die, a preheating mechanism and a positioning mechanism are fixedly connected to the inner side wall of the sliding groove, a groove and a through hole are formed in the inner side wall of the sliding groove, a rotating shaft is fixedly connected to the side wall of the groove, a rotating plate is fixedly connected to the side wall of the rotating shaft, a positioning hole is formed in the upper wall of the lower die, and a strip-shaped hole is formed in.

Preferably, the bending mechanism comprises a fixed block and an ejector block, the lower wall of the upper die is fixedly connected with the fixed block, and the lower wall of the fixed block is fixedly connected with the ejector block.

Preferably, the preheating mechanism comprises a heat transfer block and a resistance wire, the inner cavity of the lower die is fixedly connected with the heat transfer block, the side wall of the heat transfer block penetrates through the side wall of the sliding groove, the upper wall of the heat transfer block is consistent with the inner side wall of the sliding groove in shape, the inner cavity of the heat transfer block is fixedly connected with the resistance wire, and the resistance wire is electrically connected with an external power supply.

Preferably, positioning mechanism includes commentaries on classics piece, locating piece, locking piece, handle, spring and hand wheel, the inner chamber of bed die rotates and is connected with the commentaries on classics piece, the lateral wall fixedly connected with locating piece of commentaries on classics piece, the locating piece runs through the spout through the through-hole, the inner chamber sliding connection of bed die has the locking piece, the lateral wall of locking piece passes through the lateral wall fixedly connected with handle of bed die through the bar hole, the lower wall fixedly connected with spring of locking piece, the other end of spring and the inside wall fixed connection of bed die, the hand wheel runs through the lateral wall of bed die and the lateral wall fixed connection of commentaries on classics piece.

Preferably, a backing plate is fixedly connected to the lower wall of the lower die.

Compared with the prior art, the beneficial effects of the utility model are that: the device is provided with a preheating mechanism in an inner cavity of a lower die, so that a position needing to be bent is heated before a medical handle piece is bent, the plasticity of the handle piece is increased, the medical handle piece is not easy to damage and break when being bent, the device can also rotate the rotating block through the hand wheel after the medical handle piece is bent, the positioning column rotates along with the rotating block, the positioning column jacks up the handle piece to unload, and the positioning mechanism can position the handle piece and can also unload more conveniently.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a side view of the lower mold of the present invention.

Fig. 3 is the internal structure diagram of the lower mold of the present invention.

In the figure: the device comprises an upper die 1, a lower die 2, a positioning column 3, a bending mechanism 4, a fixed block 41, a top block 42, a cushion block 5, a sliding groove 6, a preheating mechanism 7, a heat transfer block 71, a resistance wire 72, a positioning mechanism 8, a rotating block 81, a positioning block 82, a locking block 83, a handle 84, a spring 85, a hand wheel 86, a groove 9, a through hole 10, a rotating shaft 11, a rotating plate 12, a positioning hole 13 and a strip-shaped hole 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. 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.

Referring to fig. 1-3, the present invention provides a technical solution: the bending die for the medical handle part prefabricated blank comprises an upper die 1 and a lower die 2, a lower wall of the upper die 1 is fixedly connected with a positioning column 3 and a bending mechanism 4, the upper wall of the lower die 2 is provided with a sliding groove 6, an inner side wall of the sliding groove 6 is fixedly connected with a preheating mechanism 7 and a positioning mechanism 8, the inner side wall of the sliding groove 6 is provided with a groove 9 and a through hole 10, the side wall of the groove 9 is fixedly connected with a rotating shaft 11, the side wall of the rotating shaft 11 is fixedly connected with a rotating plate 12, the upper wall of the lower die 2 is provided with a positioning hole 13, the side wall of the lower die 2 is provided with a strip-shaped hole 14, the positioning column 3 is matched with the positioning hole 13, the upper die 1 and the lower die 2 can work smoothly, the sliding groove 6 enables a workpiece to be placed in the sliding groove 6, the workpiece is placed in a position offset.

Specifically, the bending mechanism 4 comprises a fixing block 41 and an ejector block 42, the lower wall of the upper die 1 is fixedly connected with the fixing block 41, the lower wall of the fixing block 41 is fixedly connected with the ejector block 42, the lower wall of the ejector block 42 is pointed, so that the bending is more accurate, the stress area of the ejector block 42 of the fixing block 41 is larger, and the ejector block 42 is not easy to damage.

Specifically, the preheating mechanism 7 comprises a heat transfer block 71 and a resistance wire 72, the inner cavity of the lower die 2 is fixedly connected with the heat transfer block 71, the side wall of the heat transfer block 71 penetrates through the side wall of the sliding groove 6, the upper wall of the heat transfer block 71 is consistent with the shape of the inner side wall of the sliding groove 6, the inner cavity of the heat transfer block 71 is fixedly connected with the resistance wire 72, the resistance wire 72 is electrically connected with an external power supply, the resistance wire 72 is connected with the external power supply to generate heat and transmit the heat to the heat transfer block 71, so that the heat transfer block 71 can transmit the heat to a workpiece to be machined instead, the plasticity of the workpiece.

Specifically, the positioning mechanism 8 comprises a rotating block 81, a positioning block 82, a locking block 83, a handle 84, a spring 85 and a hand wheel 86, the inner cavity of the lower die 2 is rotatably connected with the rotating block 81, the side wall of the rotating block 81 is fixedly connected with the positioning block 82, the positioning block 82 penetrates through the chute 6 through the through hole 10, the inner cavity of the lower die 2 is slidably connected with the locking block 83, the side wall of the locking block 83 penetrates through the side wall of the lower die 2 through the strip-shaped hole 14 and is fixedly connected with the handle 84, the lower wall of the locking block 83 is fixedly connected with the spring 85, the other end of the spring 85 is fixedly connected with the inner side wall of the lower die 2, the hand wheel 86 penetrates through the side wall of the lower die 2 and is fixedly connected with the side wall of the rotating block 81, the rotating block 81 and the positioning block 82 can be driven by the hand wheel 86 to rotate, so that the bent workpiece is released from being positioned and, one end of the locking block 83 extends out of the lower module 2 through the strip-shaped hole 14 and is fixedly connected with the handle 84, and the other end of the locking block is attached to the side wall of the positioning column 82 to limit the positioning column 82.

Specifically, the lower wall fixedly connected with backing plate 5 of bed die 2, backing plate 5 make its bed die 2's atress degree increase, and this device is protected not to receive the damage.

The working principle is as follows: the upper die 1 is fixedly connected with the output end of a press machine, the lower die 2 is connected with an operating platform of the press machine, a positioning column 3 of the upper die 1 corresponds to a positioning hole 13, the positioning column 3 of the upper die 1 can be ensured to be coincident with the positioning hole 13 of the lower die 2, a workpiece to be bent is placed in a chute 6, one end of the workpiece is propped against a positioning block 82, the workpiece to be bent is prevented from being connected with a power supply through a resistance wire 72 to generate heat and transmitted to a heat transfer block 71, and then transmitted to the workpiece through the heat transfer block 71, the bending position is preheated, the bending angle is controlled by adjusting the pressure of the press machine, the press machine is started to enable an upper die block 1 to move downwards, so that a jacking block 42 of the workpiece is pressed downwards, a rotating shaft 11 and a rotating plate 12 on the side wall of a groove 9 support the workpiece from the lower part of the workpiece to be bent, after the bending is finished, a locking block 83 is pressed downwards, the positioning block 82 jacks up the workpiece, unloading is convenient, one end of the workpiece to be bent at the rear is jacked against the positioning block 82 after unloading is finished, and the operation is repeated.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. Bending die of medical handle prefabricated blank, including last mould (1) and bed die (2), its characterized in that: go up lower wall fixedly connected with reference column (3) and the mechanism (4) of bending of mould (1), spout (6) have been seted up to the upper wall of bed die (2), the inside wall fixedly connected with of spout (6) preheats mechanism (7) and positioning mechanism (8), the inside wall of spout (6) is seted up fluted (9) and through-hole (10), the lateral wall fixedly connected with pivot (11) of recess (9), the lateral wall fixedly connected with rotor plate (12) of pivot (11), locating hole (13) have been seted up to the upper wall of bed die (2), bar hole (14) have been seted up to the lateral wall of bed die (2).

2. The bender mould for a preform for a medical handle according to claim 1, wherein: the bending mechanism (4) comprises a fixing block (41) and an ejector block (42), the lower wall of the upper die (1) is fixedly connected with the fixing block (41), and the lower wall of the fixing block (41) is fixedly connected with the ejector block (42).

3. The bender mould for a preform for a medical handle according to claim 1, wherein: the preheating mechanism (7) comprises a heat transfer block (71) and a resistance wire (72), the inner cavity of the lower die (2) is fixedly connected with the heat transfer block (71), the side wall of the heat transfer block (71) penetrates through the side wall of the sliding groove (6), the upper wall of the heat transfer block (71) is consistent with the inner side wall of the sliding groove (6) in shape, the inner cavity of the heat transfer block (71) is fixedly connected with the resistance wire (72), and the resistance wire (72) is electrically connected with an external power supply.

4. The bender mould for a preform for a medical handle according to claim 1, wherein: the positioning mechanism (8) comprises a rotating block (81), a positioning block (82), a locking block (83), a handle (84), a spring (85) and a hand wheel (86), the inner cavity of the lower die (2) is rotatably connected with a rotating block (81), the side wall of the rotating block (81) is fixedly connected with a positioning block (82), the positioning block (82) penetrates through the sliding chute (6) through the through hole (10), the inner cavity of the lower die (2) is connected with a locking block (83) in a sliding way, the side wall of the locking block (83) penetrates through the side wall of the lower die (2) through a strip-shaped hole (14) and is fixedly connected with a handle (84), the lower wall of the locking block (83) is fixedly connected with a spring (85), the other end of the spring (85) is fixedly connected with the inner side wall of the lower die (2), the hand wheel (86) penetrates through the side wall of the lower die (2) and is fixedly connected with the side wall of the rotating block (81).

5. The bender mould for a preform for a medical handle according to claim 1, wherein: the lower wall of the lower die (2) is fixedly connected with a backing plate (5).