CN210547249U

CN210547249U - Capillary hoop-making tool

Info

Publication number: CN210547249U
Application number: CN201921460294.0U
Authority: CN
Inventors: 朱金达; 贾影; 李炳涛
Original assignee: Qingdao Changzheng Evaporator Technology Co ltd
Current assignee: Qingdao Changzheng Evaporator Technology Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-05-19
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a capillary hoop tightening tool, which comprises an operation table, a support frame, a movable support, a capillary clamping die, a capillary extrusion die and an extrusion positioning mechanism, wherein the support frame, the movable support, the capillary clamping die, the capillary extrusion die and the extrusion positioning mechanism are arranged on the operation table; the capillary clamping die comprises an upper clamping die, a lower clamping die and a first clamping die; the capillary extrusion die comprises an upper extrusion die, a lower extrusion die and a second clamping die matched with a capillary to be processed, positioning grooves matched with the outer diameter of the capillary to be processed are respectively arranged on the first clamping die and the second clamping die, and a first limiting part which protrudes upwards to limit the longitudinal movement of the capillary is arranged on the left side surface of the first clamping die; the second clamping die is provided with a second limiting part for limiting the longitudinal movement of the capillary and a stop plate arranged on the right side of the second limiting part. The utility model discloses can carry out the position to the capillary and inject, prevent effectively that the capillary cluster from moving, hoop through the outer wall to the capillary, form annular boss, ensure the capillary at welding quality, reduce the extravagant and artifical welding cost repeatedly of material of capillary.

Description

Capillary hoop-making tool

Technical Field

The utility model relates to an air conditioner capillary part processing field, concretely relates to capillary hoop frock.

Background

With the popularization of household appliances such as refrigerators and freezers, the demand and the requirement for the capillary tube for the evaporator are higher and higher. The capillary tube is an important part of the evaporator, and must be welded with other outer tubes with a large diameter during assembly, however, because the fit clearance between the capillary tube and the outer tube with the large diameter is large, the distance of the capillary tube inserted into the outer tube with the large diameter cannot be easily and accurately grasped. The application number is [ 2005200591281 ] novel patent discloses a capillary boss former, through dashing the corresponding boss shaping that realizes of needle and tube hole, avoids appearing the fold, but this kind of device is more loaded down with trivial details during operation, must have to dash the needle just can form the boss.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the location is difficult when welding to current capillary, and the welding is inconvenient, defect such as with high costs provides a capillary hoop beating frock, makes the outer wall of capillary form annular boss through the hoop beating frock, need not dash the needle and can carry out the welding position mark, and convenient operation uses manpower sparingly, solder, and is with low costs, has extensive spreading value.

The utility model discloses an adopt following technical scheme to realize: a capillary hoop-making tool is used for processing a capillary to enable the outer wall of the capillary to form an annular boss and comprises an operating platform, a support frame, a movable support, a capillary clamping die, a capillary extrusion die and an extrusion positioning mechanism, wherein the support frame, the movable support, the capillary clamping die, the capillary extrusion die and the extrusion positioning mechanism are arranged on the operating platform; in order to improve the processing flexibility of the tool, the capillary clamping die comprises an upper clamping die and a lower clamping die which are positioned on the same vertical surface, and the upper clamping die and the lower clamping die are provided with first clamping dies matched with capillaries to be processed through screws; the capillary extrusion die comprises an upper extrusion die and a lower extrusion die which are positioned on the same vertical surface, second clamping dies matched with the capillary to be processed are installed on the upper extrusion die and the lower extrusion die through screws, positioning grooves matched with the outer diameter of the capillary to be processed are respectively formed in the first clamping die and the second clamping dies, and the distance between the capillary clamping dies and the capillary extrusion die is 5-7 mm;

the upper side of the upper clamping die is connected with a first air cylinder, the upper clamping die is arranged on the support frame through the first air cylinder in a lifting mode, the lower clamping die is fixed on the operating platform, and a first limiting part protruding upwards to limit the longitudinal movement of the capillary is arranged on the left side face of the first clamping die; a second air cylinder is connected above the upper extrusion die, a gap exists between the upper extrusion die and the second air cylinder, and the upper extrusion die is arranged on the movable support in a lifting manner through the second air cylinder; the lower extrusion die is arranged on the operating platform in a sliding mode through a sliding rail, a second limiting piece for limiting the longitudinal movement of the capillary tube and a stop plate arranged on the right side of the second limiting piece are arranged on the second clamping die, and the distance between the stop plate and the left side face of the capillary tube extrusion die is 20-30 mm; the extrusion positioning mechanism comprises a third cylinder which is fixedly arranged on the operating platform and has an adjustable stroke, and the third cylinder is fixedly connected with the movable support through a piston connecting rod.

Furthermore, the distance between the annular boss and the outer side wall of the capillary tube is 1mm-1.5mm, the positioning is accurate, the welding is convenient, and the welding flux is saved.

Furthermore, be equipped with the recess that matches with the capillary external diameter on the first locating part, just the recess with the constant head tank is located same straight line, adds man-hour to fix a position the capillary, conveniently hoops, avoids the boss fold to appear, improves the capillary quality.

Furthermore, the second limiting part is arranged on the lower extrusion die and comprises a first side plate and a second side plate which are positioned on two sides of the positioning groove, a containing cavity for containing the second limiting part and the stop plate is arranged on the upper extrusion die, and when the upper extrusion die is combined with the lower extrusion die under the action of the second air cylinder, the capillary is clamped and positioned.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

capillary hoop beating frock, including capillary clamp mould and capillary extrusion mould, be equipped with first clamp mould and second clamp mould on capillary clamp mould and the capillary extrusion mould respectively, be equipped with respectively on first clamp mould and the second clamp mould and wait to process capillary external diameter assorted constant head tank, and set up first locating part on first clamp mould, be provided with the second locating part on the second clamp mould, carry out the position to the capillary through first locating part and second locating part and constant head tank and prescribe a limit to, effectively prevent capillary cluster and move, hoop through the outer wall to the capillary, form annular boss, guarantee capillary is at welding quality, and saves the solder, can not increase the extravagant and artifical welding repeatedly of material of capillary, reduce the air conditioner cost.

Drawings

Fig. 1 is a schematic structural view of a capillary hoop forming tool according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a right side structure of a capillary hoop forming tool according to an embodiment of the present invention;

fig. 3 is a schematic structural view of the left side surface of the capillary hoop forming tool according to the embodiment of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

fig. 5 is a schematic top view of the lower clamping die and the lower extrusion die according to the embodiment of the present invention;

fig. 6 is a schematic view of the capillary structure after processing according to the embodiment of the present invention.

Detailed Description

In order to clearly understand the above objects, features and advantages of the present invention, the present invention will be further described with reference to the accompanying drawings and embodiments. In the following description, specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore, the present invention is not limited to the specific embodiments disclosed below.

In the embodiment, a capillary hoop forming tool is used for processing a capillary 1 so that an annular boss 11 is formed on the outer wall of the capillary 1, and fig. 6 is a schematic structural diagram of the processed capillary 1. Referring to fig. 1, 2 and 3, the capillary hoop forming tool according to the present embodiment includes an operation table 2, a support frame 21, a movable support 22, a capillary clamping die, a capillary extrusion die and an extrusion positioning mechanism, which are arranged on the operation table; the extrusion positioning mechanism comprises a third cylinder 10 which is fixedly arranged on the operating platform 2 and has an adjustable stroke, and the third cylinder 10 is fixedly connected with the movable support 22 through a piston connecting rod 12. In order to improve the processing flexibility of the tooling, referring to fig. 1 and 3, the capillary clamping die comprises an upper clamping die 3 and a lower clamping die 4 which are positioned on the same vertical surface, and a first clamping die 5 matched with a capillary to be processed is arranged on the upper clamping die 3 and the lower clamping die 4 through screws 23; as shown in fig. 1 and 2, the capillary extrusion die comprises an upper extrusion die 6 and a lower extrusion die 7 which are located on the same vertical surface, and a second clamping die 8 matched with the capillary to be processed is mounted on the upper extrusion die 6 and the lower extrusion die 7 through a screw 23, referring to fig. 5, the first clamping die 5 and the second clamping die 8 are respectively provided with a positioning groove 9 matched with the outer diameter of the capillary to be processed, in order to improve the boss hoop extrusion effect, under the same working condition, the shorter the stroke and the stronger the acting force are, the better the effect of the annular boss 11 formed by hoop forming is, and the wrinkle phenomenon can be effectively avoided, the distance between the capillary clamping die and the capillary extrusion die is 5mm-7mm, preferably 6mm in the embodiment, the working stroke is reduced, the acting force is improved, the hoop forming efficiency and quality are further improved, and the use of a punch needle is also avoided, the structure design is simple;

referring to fig. 1, a first cylinder 31 is connected above the upper clamping die 3, the upper clamping die 3 is arranged on the support frame 21 through the first cylinder in a lifting manner, the lower clamping die 4 is fixed on the operating platform 2, and a first limiting member 51 protruding upwards to limit the longitudinal movement of the capillary is arranged on the left side surface of the first clamping die 5; a second cylinder 61 is connected above the upper extrusion die 6, and a gap exists between the upper extrusion die 6 and the second cylinder 61, so that the extrusion effect is increased, and the interaction force is increased; the upper extrusion die 6 is arranged on the movable bracket 22 through a second cylinder 61 in a lifting way; referring to fig. 2 and 5, the lower extrusion die 7 is slidably disposed on the operating table 2 through a slide rail 71, and a second limiting member 81 for limiting the longitudinal movement of the capillary 1 and a stop plate 82 disposed on the right side of the second limiting member 81 are disposed on the second clamping die 8, and the distance from the stop plate 82 to the left side surface of the capillary extrusion die is 20mm-30mm, preferably 25mm in the present embodiment, the left-right and longitudinal equal positional relationship is based on the angle shown in fig. 5, when the capillary 1 is hooped, because the end of the capillary 1 is blocked by the stop plate 82, under the condition of a large acting force, the phenomenon of wrinkles and the like does not occur when the capillary is hooped, and the processing effect is good;

in this embodiment, be equipped with the recess 52 that matches with the capillary external diameter on the first locating part 51, just recess 52 with constant head tank 9 is located same straight line, adds man-hour to fix a position capillary 1, effectively prevent that the capillary from taking place the displacement, conveniently hoop, effectively avoid the boss fold to appear, improve the capillary quality. The second limiting part 81 is arranged on the lower extrusion die 7 and comprises a first side plate 83 and a second side plate 84 which are positioned at two sides of the positioning groove 9, an accommodating cavity 85 which accommodates the second limiting part 81 and the stop plate 82 is formed in the upper extrusion die 6, and when the upper extrusion die 6 is combined with the lower extrusion die 7 under the action of the second air cylinder 61, the capillary 1 is clamped and positioned, so that the capillary is prevented from displacing in the hoop forming process.

In addition, in this embodiment, the hoop making tool includes a first control valve connected to the first cylinder and the second cylinder through pipelines and a second control valve connected to the third cylinder through pipelines, and the first control valve and the second control valve are connected to the master control valve. The method comprises the following specific operation steps that when a master control valve is started, a first control valve acts to push a first air cylinder and a second air cylinder to move downwards, so that an upper clamping die and a lower clamping die are enabled to clamp the upper extrusion die and the lower extrusion die simultaneously, then a second control valve controls a third air cylinder to act, so that a capillary extrusion die moves towards the capillary clamping die to hoop the capillary, a boss is formed, instant hoop beating can be realized only by controlling the master control valve, the acting force is strong, quick hoop beating can be realized without a punch pin, wrinkles cannot occur, the hoop beating efficiency is high, the distance of the annular boss protruding out of the outer side wall of the capillary is 1mm-1.5mm, preferably 1.5mm, the positioning is accurate, the welding is convenient, and the welding flux is saved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The capillary hoop forming tool is used for processing a capillary to enable the outer wall of the capillary to form an annular boss and is characterized by comprising an operating platform, a support frame, a movable support, a capillary clamping die, a capillary extrusion die and an extrusion positioning mechanism, wherein the support frame, the movable support, the capillary clamping die, the capillary extrusion die and the extrusion positioning mechanism are arranged on the operating platform; the capillary tube clamping die comprises an upper clamping die and a lower clamping die which are positioned on the same vertical surface, and the upper clamping die and the lower clamping die are provided with first clamping dies matched with a capillary tube to be processed through screws; the capillary extrusion die comprises an upper extrusion die and a lower extrusion die which are positioned on the same vertical surface, second clamping dies matched with the capillary to be processed are installed on the upper extrusion die and the lower extrusion die through screws, positioning grooves matched with the outer diameter of the capillary to be processed are respectively formed in the first clamping die and the second clamping dies, and the distance between the capillary clamping dies and the capillary extrusion die is 5-7 mm;

the upper side of the upper clamping die is connected with a first air cylinder, the upper clamping die is arranged on the support frame through the first air cylinder in a lifting mode, the lower clamping die is fixed on the operating platform, and a first limiting part protruding upwards to limit the longitudinal movement of the capillary is arranged on the left side face of the first clamping die;

a second air cylinder is connected above the upper extrusion die, a gap exists between the upper extrusion die and the second air cylinder, and the upper extrusion die is arranged on the movable support in a lifting manner through the second air cylinder; the lower extrusion die is arranged on the operating platform in a sliding mode through a sliding rail, a second limiting piece for limiting the longitudinal movement of the capillary tube and a stop plate arranged on the right side of the second limiting piece are arranged on the second clamping die, and the distance between the stop plate and the left side face of the capillary tube extrusion die is 20-30 mm;

the extrusion positioning mechanism comprises a third cylinder which is fixedly arranged on the operating platform and has an adjustable stroke, and the third cylinder is fixedly connected with the movable support through a piston connecting rod.

2. The capillary hoop-beating tool according to claim 1, characterized in that: the distance of the annular boss protruding out of the outer side wall of the capillary tube is 1mm-1.5 mm.

3. The capillary hoop-beating tool according to claim 2, characterized in that: the first limiting part is provided with a groove matched with the outer diameter of the capillary tube, and the groove and the positioning groove are located on the same straight line.

4. The capillary hoop-beating tool according to claim 3, characterized in that: the second limiting part is arranged on the lower extrusion die and comprises a first side plate and a second side plate which are positioned on two sides of the positioning groove, and a containing cavity for containing the second limiting part and the stop plate is arranged on the upper extrusion die.