CN218926002U

CN218926002U - Positioning mechanism of household electrical appliances panel beating mould

Info

Publication number: CN218926002U
Application number: CN202223490864.5U
Authority: CN
Inventors: 姚效兴; 刘永飞
Original assignee: Anhui Xiaoyang Technology Co ltd
Current assignee: Anhui Xiaoyang Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-04-28
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a positioning mechanism of a household appliance sheet metal die, which comprises a lower die positioning mechanism and an upper die positioning mechanism, wherein the lower die positioning mechanism comprises positioning plates which are respectively arranged at two sides and have the same specification and dimension, the upper parts of the opposite sides of the two positioning plates are provided with inwards concave limiting arc surfaces, and a positioning groove is formed in the middle part of the two limiting arc surfaces; when the sheet metal blank is put into the positioning groove-upper edge opening, the hydraulic device can drive the upper die holder to vertically descend and continuously press the sheet metal, then the pressing plate can form the same pressing limit on two sides of the sheet metal, and meanwhile, effective positioning can be formed on two sides of the sheet metal under the cooperation of the limiting arc surface and the clearance groove, so that the situation that the blank is separated from the positioning plate in the stamping stretching process and cannot be positioned is prevented, the sheet metal can deform according to an ideal state, and the uniformity of product specifications is improved while the defects of parts are reduced.

Description

Positioning mechanism of household electrical appliances panel beating mould

Technical Field

The utility model relates to the technical field of sheet metal machining, in particular to a positioning mechanism of a household appliance sheet metal die.

Background

The household electrical appliances cover the aspects in our life, often need to use the sheet metal component of large (jumbo size) on the household electrical appliances, at present, the household electrical appliances sheet metal component is generally through corresponding stamping die stamping forming, and sheet metal component stamping die has corresponding punching mechanism to carry out punching die assembly to the mould.

In the stamping forming process of sheet metal parts, a positioning plate arranged vertically is generally adopted to guide and position sheet metal blanks, but in the actual production process, the sheet metal blanks can gradually shrink inwards during stamping forming, so that two sides of the sheet metal can leave a vertical positioning surface, blank play and offset can occur to a certain extent, the sheet metal flows in the forming process are not carried out according to ideal conditions, the expected forming specification and effect cannot be achieved after part forming, and the processing precision is required to be further improved.

Disclosure of Invention

This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.

Therefore, the utility model aims to provide a positioning mechanism of a sheet metal die for home appliances, which solves the problems that the conventional sheet metal positioning device provided in the background art can cause blank movement and deviation during positioning, and the expected molding specification and effect of the formed parts cannot be achieved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a positioning mechanism of household electrical appliances sheet metal mold, it includes:

the lower die positioning mechanism comprises positioning plates which are respectively arranged at two sides and have the same specification and size, wherein the upper parts of the two opposite sides of the positioning plates are provided with inwards concave limiting arc surfaces, positioning grooves are formed in the middle parts of the two limiting arc surfaces, and a plurality of empty avoiding grooves which are communicated with the limiting arc surfaces are also formed in the upper parts of the positioning plates;

the upper die positioning mechanism comprises an upper die holder arranged right above the middle of the two positioning plates, and two sides of the upper die holder are vertically and slidably connected with a plurality of jacking positioning driving assemblies corresponding to the clearance grooves;

when the sheet metal blank is transversely placed into the upper end of the inner side of the positioning groove, the upper die holder can vertically punch and gradually bend the sheet metal blank under hydraulic drive, and meanwhile, the jacking positioning driving assembly can synchronously jack and limit the two sides of the sheet metal under the cooperation of the limiting arc surface and the clearance groove, and the sheet metal is prevented from moving and shifting.

As a preferable scheme of the sealing ring discharging device of the spray head pump, the lower parts of the opposite surfaces of the two positioning plates are provided with limiting clamping grooves, the inner sides of the limiting clamping grooves are fixedly provided with lower die holders, and the lower die holders are positioned under the upper die holders and form stamping die closing with the upper die holders.

As a preferable scheme of the sealing ring discharging device of the spray head pump, linear guide rails are arranged on two sides of the upper die holder;

the jacking positioning driving assembly comprises a sliding block, a jacking plate and a telescopic electric cylinder, wherein the sliding block is connected to the inner side of the linear guide rail in a sliding mode, the jacking plate is fixed to the outer side face of the sliding block, the telescopic electric cylinder is fixedly installed on the inner side of the linear guide rail, and the telescopic end of the telescopic electric cylinder is connected to the top of the sliding block, wherein the bottom of the jacking plate is of a horizontal plane structure.

As a preferred embodiment of the seal ring discharging device of the shower nozzle pump, the maximum end distance of the two top pressing plates is smaller than the upper maximum distance of the positioning groove, and the width dimension of the top pressing plates is smaller than the width dimension of the empty avoidance groove.

Compared with the prior art, the utility model has the beneficial effects that: this kind of positioning mechanism of household electrical appliances panel beating mould, through the cooperation of lower mould positioning mechanism and last mould positioning mechanism, it can form effective location to the both sides of panel beating to prevent that the blank breaks away from the condition of the inaccurate or unable location of location that the locating plate caused in the tensile in-process of punching press, make the panel beating can deform according to ideal state, and punch forming under the compound die of upper and lower mould has also promoted the uniformity of product specification when reducing the part defect.

Drawings

FIG. 1 is a schematic view of the overall external structure of the present utility model;

FIG. 2 is a schematic diagram of the overall front internal structure of the present utility model;

FIG. 3 is a schematic view of the external structure of the upper die positioning mechanism of the present utility model;

fig. 4 is a schematic view of the external structure of the locating plate of the present utility model.

In the figure: 100. a lower die positioning mechanism; 110. a positioning plate; 110a, limiting arc surfaces; 110a-1, a positioning groove; 110b, an empty-avoiding groove; 110c, a limiting clamping groove; 120. a lower die holder; 200. an upper die positioning mechanism; 210. an upper die holder; 210a, linear guide rails; 220. a jacking positioning driving assembly; 220a, a slider; 220b, a top pressure plate; 220c, a telescopic electric cylinder.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings.

Next, the present utility model will be described in detail with reference to the drawings, wherein the sectional view of the device structure is not partially enlarged to general scale for the convenience of description, and the drawings are only examples, which should not limit the scope of the present utility model. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

Fig. 1 to 4 are schematic views showing the whole structure of a positioning mechanism of a sheet metal mold for home appliances according to the present utility model, referring to fig. 1 to 4, the positioning mechanism of the sheet metal mold for home appliances of the present embodiment includes a lower mold positioning mechanism 100 and an upper mold positioning mechanism.

The lower die positioning mechanism 100 comprises positioning plates 110 which are respectively arranged on two sides and have the same specification and size, wherein the upper parts of the opposite sides of the two positioning plates 110 are provided with inwards concave limiting arc surfaces 110a, positioning grooves 110a-1 are formed in the middle parts of the two limiting arc surfaces 110a, a plurality of empty-avoiding grooves 110b which are communicated with the limiting arc surfaces 110a are further formed in the upper parts of the positioning plates 110, in the embodiment, the lower parts of the opposite sides of the two positioning plates 110 are provided with limiting clamping grooves 110c, the inner sides of the limiting clamping grooves 110c are fixedly provided with lower die holders 120, and the lower die holders 120 are positioned under the upper die holders 210 and form stamping die clamping with the upper die holders 210.

The upper die positioning mechanism 200 comprises an upper die holder 210 arranged right above the middle of the two positioning plates 110, wherein two sides of the upper die holder 210 are vertically and slidably connected with a plurality of jacking positioning driving assemblies 220 corresponding to the clearance grooves 110b, and in the embodiment, two sides of the upper die holder 210 are provided with linear guide rails 210a; the top pressure positioning driving assembly 220 comprises a sliding block 220a connected to the inner side of the linear guide rail 210a in a sliding manner, a top pressure plate 220b fixed to the outer side surface of the sliding block 220a, and a telescopic electric cylinder 220c fixedly installed on the inner side of the linear guide rail 210a and connected to the top of the sliding block 220a at a telescopic end, wherein the bottom of the top pressure plate 220b is of a horizontal plane structure. In actual operation, when the sheet metal blank is placed into the upper edge of the positioning groove 110a-1, the hydraulic device drives the upper die holder 210 to vertically descend and continuously press the sheet metal, then the pressing plate 220b can form the same pressing limit on two sides of the sheet metal, and as the two sides of the sheet metal are gradually bent upwards in the forming shrinkage process, the longitudinal height of the sheet metal is gradually increased, so that the telescopic cylinder 220c can drive the sliding block 220a and the pressing plate 220b to gradually ascend while the upper die holder 210 continuously presses, thereby matching the real-time deformation state of the sheet metal, and simultaneously forming effective positioning on two sides of the sheet metal under the cooperation of the pressing plate 220b and the limiting arc surface 110a and the clearance groove 110b, thereby preventing the situation that the blank is not positioned accurately or cannot be positioned due to the separation of the positioning plate in the punching stretching process, so that the sheet metal can deform according to an ideal state, and the stamping forming under the die clamping of the upper die and the lower die, and the uniformity of the product is improved while the part defect is reduced.

Further, the maximum end distance of the two top pressing plates 220b is smaller than the upper maximum distance of the positioning groove 110a-1, wherein the width dimension of the top pressing plate 220b is smaller than the width dimension of the clearance groove 110b, so that the top pressing plate 220b is not blocked by the gradual narrowing of the positioning groove 110a-1 while descending, and is free to lift under the cooperation of the clearance groove 110 b.

In summary, in the positioning mechanism of the home appliance sheet metal mold of the present embodiment, when a sheet metal blank is placed in the upper edge of the positioning groove 110a-1, the hydraulic device drives the upper die holder 210 to vertically descend and continuously press the sheet metal, then the upper die holder 220b forms the same pressing limit on two sides of the sheet metal, and since the two sides of the sheet metal are gradually bent upwards in the process of forming shrinkage, the longitudinal height of the sheet metal gradually increases, while the upper die holder 210 continuously presses, the telescopic cylinder 220c drives the slider 220a and the upper die holder 220b to gradually rise, thereby matching the real-time deformation state of the sheet metal, and simultaneously forming effective positioning on two sides of the sheet metal under the cooperation of the pressing plate 220b and the limit arc surface 110a and the clearance groove 110b, so as to prevent the situation that the sheet metal is not positioned or cannot be positioned due to the separation of the sheet metal from the positioning plate in the punching stretching process, so that the sheet metal can deform according to the ideal state, and the die assembly and the uniformity of product specifications is improved while the defect of parts is reduced.

Although the utility model has been described hereinabove with reference to embodiments, various modifications thereof may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the features of the disclosed embodiments may be combined with each other in any manner as long as there is no structural conflict, and the exhaustive description of these combinations is not given in this specification merely for the sake of omitting the descriptions and saving resources. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a positioning mechanism of household electrical appliances panel beating mould which characterized in that includes

The lower die positioning mechanism (100) comprises positioning plates (110) which are respectively arranged on two sides and have the same specification and size, wherein the upper parts of two opposite sides of the positioning plates (110) are provided with inwards-sunken limiting arc surfaces (110 a), positioning grooves (110 a-1) are formed in the middle parts of the two limiting arc surfaces (110 a), and a plurality of clearance grooves (110 b) which are communicated with the limiting arc surfaces (110 a) are formed in the upper parts of the positioning plates (110);

the upper die positioning mechanism (200) comprises an upper die holder (210) arranged right above the middle of the two positioning plates (110), and a plurality of jacking positioning driving assemblies (220) corresponding to the clearance grooves (110 b) are vertically and slidably connected to two sides of the upper die holder (210);

when a sheet metal blank is transversely placed into the upper end of the inner side of the positioning groove (110 a-1), the upper die holder (210) can vertically punch and gradually bend the sheet metal blank under hydraulic drive, and meanwhile, the jacking positioning driving assembly (220) can synchronously jack and limit the two sides of the sheet metal under the cooperation of the limiting arc surface (110 a) and the clearance groove (110 b), and the sheet metal is prevented from moving and shifting.

2. The positioning mechanism of a sheet metal mold for household appliances according to claim 1, wherein: the lower parts of the opposite surfaces of the two positioning plates (110) are provided with limiting clamping grooves (110 c), a lower die holder (120) is fixed on the inner side of each limiting clamping groove (110 c), and the lower die holder (120) is positioned under the upper die holder (210) and forms a stamping die with the upper die holder (210).

3. The positioning mechanism of a sheet metal mold for household appliances according to claim 1, wherein: linear guide rails (210 a) are arranged on two sides of the upper die holder (210);

the jacking positioning driving assembly (220) comprises a sliding block (220 a) which is connected to the inner side of the linear guide rail (210 a) in a sliding mode, a jacking plate (220 b) which is fixed to the outer side face of the sliding block (220 a), and a telescopic electric cylinder (220 c) which is fixedly installed on the inner side of the linear guide rail (210 a) and the telescopic end of which is connected to the top of the sliding block (220 a), wherein the bottom of the jacking plate (220 b) is of a horizontal plane structure.

4. A positioning mechanism for a sheet metal die of an electrical appliance as claimed in claim 3, wherein: the maximum end distance of the two pressing plates (220 b) is smaller than the upper maximum distance of the positioning groove (110 a-1), wherein the width dimension of the pressing plates (220 b) is smaller than the width dimension of the clearance groove (110 b).