CN210701940U

CN210701940U - Improved internal thread spinning die

Info

Publication number: CN210701940U
Application number: CN201921395774.3U
Authority: CN
Inventors: 林锡彬
Original assignee: Hailiang Aotuo Copper Tube Guangdong Co ltd
Current assignee: Hailiang Aotuo Copper Tube Guangdong Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-06-09
Anticipated expiration: 2029-08-27

Abstract

The utility model discloses a modified internal thread spinning mould, including domestic general spinning cover and domestic general spinning ring steel ball unit, domestic general spinning ring steel ball unit transition fit is installed in this domestic general spinning cover, the axial of the first terminal surface of domestic general spinning cover is installed first switching piece through first fastener the second switching piece is installed through the second fastener in the outside of first switching piece, the second switching piece outside is used for being connected with the hollow pivot of magnetic levitation motor. Therefore, the utility model has the advantages of efficiency is higher, the cost is lower, the structure is compacter.

Description

Improved internal thread spinning die

Technical Field

The utility model relates to an internal thread forming die field especially relates to a modified internal thread spinning mould.

Background

In the process of producing the internal thread copper pipe for the air conditioner by using a spinning method, at present, internal thread forming equipment is mainly an internal thread forming machine introduced from Ottokupfu corporation in Finland, and the most key characteristics of the machines are that the machines are provided with imported magnetic suspension high-speed motors with high power, high performance, high stability and long service life, and the maximum spinning speed of the magnetic suspension high-speed motors can reach 45000 rpm. The diameter of the hollow rotating shaft connecting part of the magnetic suspension high-speed motor is larger, and the self weight of the existing spinning die special for the imported magnetic suspension high-speed motor is large, so that the universal spinning die with a domestic machine cannot be realized, but high-precision dies such as an imported spinning sleeve, an imported hard alloy rolling ring and a steel ball must be used, and as shown in fig. 1, the three-dimensional decomposition structure schematic diagram of the imported spinning die is shown and comprises an imported spinning sleeve 100, an imported hard alloy rolling ring and a steel ball 200, and a gland 300, wherein the gland 300 is axially connected with the imported spinning sleeve 100 through a first screw 400, the hard alloy rolling ring and the steel ball 200 are axially connected with the gland 300 through a pin 500, and the imported spinning sleeve 100 is axially connected with the hollow rotating shaft of the magnetic suspension high-speed motor through a second screw 600. The dies such as the imported spinning sleeve 100, the imported hard alloy rolling ring, the steel ball 200 and the like have large weight and large inertia, so when the internal thread copper pipe for the domestic conventional air conditioner with the conventional external diameter of phi 5-9.52 is processed and formed, the efficiency can not be improved by improving the spinning and pipe drawing speeds, the advantages of the imported machine and the high-performance magnetic suspension motor equipped by the imported machine can not be exerted, the imported machine is in a low-efficiency operation state, and the problems of high cost and high energy consumption caused by high power exist.

Disclosure of Invention

The utility model aims at providing an efficiency is higher, the cost is lower, the structure is compacter improved internal thread spinning mould.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a modified internal thread spinning mould, includes domestic general spinning cover and domestic general spinning ring steel ball unit, domestic general spinning ring steel ball unit transition fit installs in this domestic general spinning cover, the axial of the first terminal surface of domestic general spinning cover installs first switching piece through first fastener the outside axial of first switching piece is installed the second through the second fastener and is changeed the piece, the second switching piece outside is used for being connected with the hollow pivot of magnetic levitation motor.

As the improvement of the utility model, the outside axial of second switching piece is connected with the hollow pivot of magnetic suspension motor through the third fastener.

As an improvement of the present invention, the first fastener, the second fastener and/or the third fastener is a screw.

As the improvement of the utility model, still include and roll ring clearance adjustment pad, it is in to roll ring clearance adjustment pad sets up between domestic general spinning cover and the first switching piece.

As the improvement of the utility model, the domestic general spinning sleeve, the first transfer block and/or the second transfer block are made of titanium alloy.

The utility model discloses because including domestic general spinning cover and domestic general spinning ring steel ball unit, domestic general spinning ring steel ball unit transition fit is installed in this domestic general spinning cover, the axial of the first terminal surface of domestic general spinning cover is installed first switching piece through first fastener the outside axial of first switching piece is installed the second switching piece through the second fastener, the second switching piece outside is used for being connected with the hollow pivot of magnetic levitation motor. The utility model realizes the connection of the domestic universal spinning sleeve and the domestic universal spinning ring steel ball unit with the hollow rotating shaft of the magnetic suspension motor through the two-stage switching by the first switching block and the second switching block, and the first switching block and the second switching block are matched for use, so that the domestic universal spinning die with lower price is directly used to replace the expensive hard alloy spinning die which needs to be imported originally, and the use cost of the spinning die is greatly reduced in cost; in performance, the light weight of the spinning die is greatly realized; structurally, the utility model realizes the unchanged specification of the copper pipe which can be formed by the spinning die, but has more compact structure and smaller size compared with the original imported hard alloy spinning die, which is an important component of the die set capable of being improved in light weight; the light weight of the high-speed spinning die realizes that the machine table can further improve the forming spinning rotating speed, realizes higher forming stretching speed, improves the production efficiency and improves the surface quality of product forming. In addition, the universal spinning die is small in weight, the rotating inertia is correspondingly smaller at the moment, the advantages of the magnetic suspension motor that the operation is more stable and the spinning rotating speed and the pipe drawing speed are higher can be fully exerted, and the production efficiency and the product forming quality are improved. Therefore, the utility model has the advantages of efficiency is higher, the cost is lower, the structure is compacter.

Drawings

Fig. 1 is a schematic perspective exploded view of a spinning mold according to the prior art of the present invention;

FIG. 2 is a schematic perspective exploded view of an embodiment of the present invention;

FIG. 3 is a schematic perspective view of the fully assembled structure of FIG. 2;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a sectional view taken along A-A of FIG. 4;

FIG. 6 is a front view of FIG. 3;

fig. 7 is a sectional view taken along the direction B-B of fig. 6.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

referring to fig. 2 to 7, fig. 2 to 7 disclose an embodiment of an improved internal thread spinning die, which comprises a domestic universal spinning sleeve 1 and a domestic universal spinning ring steel ball unit 2, the domestic universal spinning ring steel ball unit 2 is arranged in the domestic universal spinning sleeve 1 in a transition fit manner, the first adapting block 31 is arranged on the first end surface of the domestic universal spinning sleeve 1 through a first fastener 41 in the axial direction, in the utility model, the first fastening member 41 is axially inserted into the domestic universal spinning sleeve 1 and the first transfer block 31, a second transfer block 32 is mounted axially by a second fastener 42 on the outside of the first transfer block 31, the second fastening piece 42 axially penetrates through the first transfer block 31 and the second transfer block 32, and the outer side of the second transfer block 32 is used for being connected with the hollow rotating shaft of the magnetic suspension motor. The utility model discloses a first switching piece 31 and second switching piece 32, through the switching of these two-stage, realized that domestic general spinning cover 1 and domestic general spinning ring steel ball unit 2 are connected with the hollow pivot of magnetic suspension motor (not drawn in the figure), and cooperate the use, the utility model discloses directly use domestic general spinning mould of lower price, replace the expensive carbide spinning mould that originally needs the import, in the cost, reduced the use cost of spinning mould by a wide margin; structurally, the spinning die realizes the unchanged specification of the formable copper tube, but has more compact structure and smaller size compared with the original imported hard alloy spinning die, which is an important component for lightweight improvement of the spinning die; the light weight of the high-speed spinning die realizes that the machine table can further improve the forming spinning rotating speed, realizes higher forming stretching speed, improves the production efficiency and improves the surface quality of product forming. In addition, the universal spinning die is small in weight, the rotating inertia is correspondingly smaller at the moment, the advantages of the magnetic suspension motor that the operation is more stable and the spinning rotating speed and the pipe drawing speed are higher can be fully exerted, and the production efficiency and the product forming quality are improved.

The utility model discloses in, it is preferred, the outside axial of second switching piece 32 is connected with the hollow pivot of magnetic suspension motor through third fastener 43, in this embodiment, third fastener 43 penetrates along the axial second switching piece 32 and the hollow pivot of magnetic suspension motor to realize the fastening connection of domestic general spinning mould and the hollow pivot of magnetic suspension motor.

In the present invention, preferably, the first fastening member 41, the second fastening member 42 and/or the third fastening member 43 are screws. Of course, the first fastening member 41, the second fastening member 42 and/or the third fastening member 43 may also be a pin, which is not limited herein as long as the fastening function is achieved.

The utility model discloses in, preferred, still including rolling ring clearance adjustment and filling up 22, it is in to roll ring clearance adjustment and filling up 22 setting between domestic general spinning cover 1 and first adaptor 31, the utility model discloses in, it is used for adjusting the clearance of domestic general spinning ring steel ball unit 2 interior steel ball to roll ring clearance adjustment and fill up 22.

The utility model discloses in, preferred, the material of domestic general spinning cover 1, first switching piece 31 and/or second switching piece 32 is titanium alloy, in the performance, for the expensive carbide spinning mould that originally needs the import, the utility model discloses a spinning mould lightweight by a wide margin. The light weight of the high-speed spinning die realizes that the machine table can further improve the forming spinning rotating speed, realizes higher forming stretching speed, improves the production efficiency and improves the surface quality of product forming. In the utility model, the domestic general spinning ring steel ball unit 2 can be ceramic balls besides steel balls.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.

Claims

1. The utility model provides a modified internal thread spinning mould, its characterized in that, includes domestic general spinning ring steel ball unit (2) of cover (1) and domestic general spinning ring, domestic general spinning ring steel ball unit (2) transition fit installs in this domestic general spinning ring (1), first adapter block (31) is installed through first fastener (41) to the axial of the first terminal surface of domestic general spinning ring (1) the outside axial of first adapter block (31) is installed second adapter block (32) through second fastener (42), second adapter block (32) outside is used for tightly being connected with the hollow pivot of magnetic suspension motor.

2. The improved female thread spinning die of claim 1, wherein the outer side of said second transfer block (32) is axially connected to the hollow shaft of the magnetic levitation motor by a third fastening member (43).

3. Improved female thread spinning die according to claim 1 or 2, characterized in that the first (41), second (42) and/or third (43) fastening members are screws.

4. The improved internally threaded spinning die of claim 3, further comprising a rolling ring gap adjustment pad (22), said rolling ring gap adjustment pad (22) being disposed between said domestic universal spinning sleeve (1) and a first adaptor block (31).

5. The improved internally threaded spinning die of claim 1 or 2, further comprising a rolling ring gap adjustment pad (22), said rolling ring gap adjustment pad (22) being disposed between said domestic universal spinning sleeve (1) and a first adaptor block (31).

6. The improved female spinning die of claim 1 or 2, characterized in that the material of the domestic universal spinning sleeve (1), the first transfer block (31) and/or the second transfer block (32) is titanium alloy.