CN111570649B

CN111570649B - Clamping mechanism, pipe expander and production line

Info

Publication number: CN111570649B
Application number: CN202010418607.7A
Authority: CN
Inventors: 胡康; 关俊熙; 鲁鹏; 张秀峰
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2022-05-10
Anticipated expiration: 2040-05-18
Also published as: CN111570649A

Abstract

The invention relates to a clamping mechanism, a pipe expander and a production line. The heat exchanger is arranged between the first clamping piece and the second clamping piece, and the clamping assembly drives the second clamping piece to move towards the first clamping piece so as to clamp the heat exchanger. The locking assembly locks the relative position of the first clamping piece and the second clamping piece, and can effectively avoid the problem that the second clamping piece moves relative to the first clamping piece due to the fact that the clamping assembly fails to drive the second clamping piece. After the heat exchanger is machined, the locking assembly unlocks the positions of the first clamping piece and the second clamping piece, and the second clamping piece moves towards the direction far away from the first clamping piece, so that the heat exchanger can be unclamped. The clamping mechanism can guarantee the stability of the heat exchanger in the machining process, effectively guarantee the machining quality of the heat exchanger and reduce the rejection rate of the heat exchanger.

Description

Clamping mechanism, pipe expander and production line

Technical Field

The invention relates to the technical field of clamping structures, in particular to a clamping mechanism, a pipe expander and a production line.

Background

When the traditional tube expander expands the tube of the heat exchanger, the heat exchanger needs to be positioned and fixed through a clamping structure, and then the tube expansion is convenient to realize. According to the traditional clamping structure, the heat exchanger is arranged between two clamping plates, and then one of the clamping plates is driven to move, so that the purpose of clamping the heat exchanger is achieved. However, the clamping stability of the conventional clamping structure is poor, so that the stability of the heat exchanger in the tube expansion processing process is poor, and the tube expansion processing quality of the heat exchanger is affected.

Disclosure of Invention

In view of the above, it is desirable to provide a clamping mechanism, a pipe expander, and a production line that improve the processing stability of a heat exchanger.

A clamping mechanism, the clamping mechanism comprising:

the clamping assembly comprises a first clamping piece and a second clamping piece which is arranged opposite to the first clamping piece at intervals;

the clamping assembly is used for driving the second clamping piece to move towards the direction of the first clamping piece; and

and one end of the locking assembly is arranged on the first clamping piece, the other end of the locking assembly is arranged on the second clamping piece, and the locking assembly is used for locking the relative positions of the first clamping piece and the second clamping piece.

In one embodiment, the clamping assembly includes a driving source and an abutting member, the abutting member can abut against the second clamping member, and the driving source is used for driving the abutting member to push the second clamping member to move towards the first clamping member.

In one embodiment, the abutting member is rotatably disposed relative to the first clamping member, the driving source is configured to drive one end of the abutting member to rotate relative to the first clamping member, so that the other end of the abutting member abuts against a side of the second clamping member opposite to the first clamping member, and the abutting member can push the second clamping member to move toward the first clamping member.

In one embodiment, the clamping assembly further comprises a compensation source for driving one end of the abutment member to rotate relative to the first clamping member.

In one embodiment, the compensation source can abut on a side of the abutment facing the first clamp.

In one embodiment, the clamping assembly further comprises a cushion pad disposed on a side of the abutting member facing the compensation source, and the compensation source can abut against the cushion pad.

In one embodiment, the clamping mechanism further comprises a first adjusting member, the clamping assembly is arranged on the first adjusting member, the first clamping member is arranged on the first adjusting member, and the position of the first clamping member can be adjusted on the first adjusting member in the direction close to or away from the second clamping member.

In one embodiment, the first clamping member has a first fixing hole, the first adjusting member has a first adjusting hole, the first adjusting hole is correspondingly communicated with the first fixing hole, the first adjusting hole and/or the first fixing hole is a strip-shaped hole, and the length direction of the strip-shaped hole is the direction from the first clamping member to the second clamping member.

In one embodiment, the clamping mechanism further includes a second adjusting member, the first adjusting member and the second adjusting member are respectively disposed on two opposite ends of the first clamping member, the locking assembly is disposed on the second adjusting member, and the first clamping member can adjust a position on the second adjusting member in a direction approaching to or departing from the second clamping member.

In one embodiment, the first clamping member is provided with a second fixing hole, the second adjusting member is provided with a second adjusting hole, the second adjusting hole is correspondingly communicated with the second fixing hole, the second adjusting hole and/or the second fixing hole are/is a strip-shaped hole, and the length direction of the strip-shaped hole is the direction of the first clamping member facing the second clamping member.

In one embodiment, the locking assembly comprises a connecting piece and a locking piece, one end of the connecting piece is arranged on the first clamping piece, the locking piece is arranged on the second clamping piece, and the locking piece is used for locking the other end of the connecting piece; or

The locking assembly comprises a connecting piece and a locking piece, one end of the connecting piece is arranged on the second clamping piece, the locking piece is arranged on the first clamping piece, and the locking piece is used for locking the other end of the connecting piece.

In one embodiment, the locking member includes a pushing source and a locking portion, the locking portion is provided with a locking hole, the connecting member includes a connecting portion and a limiting portion connected to the connecting portion, and the pushing source is used for driving the locking portion to move so that the connecting portion passes through the locking hole; wherein,

if one end of the connecting piece is arranged on the first clamping piece, the locking part is arranged on the second clamping piece, one end of the connecting part, which is back to the limiting part, is arranged on the second adjusting piece, and the limiting part can abut against one side, which is back to the first clamping piece, of the locking part;

if one end of the connecting piece is arranged on the second clamping piece, one end, back to the limiting part, of the connecting part is arranged on the second clamping piece, the locking part is arranged on the second adjusting piece, and the limiting part can abut against one side, back to the second clamping piece, of the locking part.

In one embodiment, the locking part is further provided with a moving hole, the moving hole is communicated with the locking hole, the pushing source is used for driving the locking part to move so that the connecting part can move from the locking hole to the moving hole, and the size of the moving hole is larger than or equal to that of the limiting part.

In one embodiment, a positioning piece is arranged between the first clamping piece and the second clamping piece, and the thickness of the positioning piece is consistent with that of the heat exchanger.

In one embodiment, the positioning member is detachably mounted on the first clamping member or the second clamping member.

A pipe expander, the pipe expander comprising:

the clamping mechanism as described above; and

and the tube expansion assembly is arranged on one side of the clamping mechanism.

In one embodiment, the pipe expander further comprises a moving assembly, the clamping mechanism being disposed on the moving assembly, the clamping mechanism being movable on the moving assembly.

In one embodiment, the pipe expander further comprises a rotating part, wherein the moving assembly is arranged on the rotating part, and the moving assembly can drive the clamping mechanism to rotate on the rotating part.

A production line comprising a pipe expander as described above.

When the clamping mechanism, the pipe expander and the production line are used, the heat exchanger to be processed is arranged between the first clamping piece and the second clamping piece, the clamping assembly is arranged on the first clamping piece, the second clamping piece can be driven to move towards the direction of the first clamping piece through the clamping assembly, and the heat exchanger is clamped through the first clamping piece and the second clamping piece. Further because the one end of locking Assembly sets up on first holder, and the other end sets up on the second holder, locks first holder and second holder relative position through locking Assembly, can effectively avoid because clamping assembly is invalid to the drive of second holder, leads to the second holder to move about for first holder, influences the stability to the heat exchanger centre gripping. After the heat exchanger is machined, the locking assembly unlocks the positions of the first clamping piece and the second clamping piece, the second clamping piece moves towards the direction far away from the first clamping piece, and therefore clamping of the heat exchanger can be relieved, and blanking of the heat exchanger is facilitated. The stability of the heat exchanger in the machining process can be guaranteed through the clamping mechanism, the machining quality of the heat exchanger can be effectively guaranteed, and the rejection rate of the heat exchanger is reduced.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale. In the drawings:

FIG. 1 is a top view of a clamping mechanism in one embodiment;

FIG. 2 is an enlarged view taken at A in FIG. 1;

FIG. 3 is a front view of the clamping mechanism shown in FIG. 1;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is a front view of a pipe expander in an embodiment;

fig. 6 is a side view of the pipe expander shown in fig. 5.

Description of reference numerals:

10. the clamping mechanism comprises a clamping mechanism 100, a clamping assembly 110, a first clamping piece 120, a second clamping piece 122, a limiting groove 200, a clamping assembly 210, a driving source 220, an abutting piece 230, a compensation source 240, a cushion pad 300, a locking assembly 310, a connecting piece 312, a limiting part 320, a locking piece 322, a pushing source 324, a locking part 326, a moving hole 330, a connecting block 400, a first adjusting piece 500, a second adjusting piece 510, a guiding part 600, a positioning piece 20, a pipe expander 201, a moving assembly 202, a moving guide rail 203, a driving piece 204 and a rotating piece.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.

Referring to fig. 1, a clamping mechanism 10 according to an embodiment of the present invention at least can improve the stability of heat exchanger clamping, and thus the stability of heat exchanger processing. In another embodiment, the clamping mechanism 10 of the present invention can also be used to clamp other objects to be processed.

Specifically, the clamping mechanism 10 comprises a clamping assembly 100, a clamping assembly 200 and a locking assembly 300, wherein the clamping assembly 100 comprises a first clamping piece 110 and a second clamping piece 120 which is arranged opposite to the first clamping piece 110 at a spacing; the clamping assembly 200 is used for driving the second clamping member 120 to move towards or away from the first clamping member 110; one end of the locking assembly 300 is disposed on the first clamping member 110, and the other end is disposed on the second clamping member 120, and the locking assembly 300 is used for locking the relative positions of the first clamping member 110 and the second clamping member 120.

When the clamping mechanism 10 is used, the heat exchanger to be processed is arranged between the first clamping member 110 and the second clamping member 120, and the clamping assembly 200 is arranged on the first clamping member 110, so that the second clamping member 120 can be driven to move towards the first clamping member 110 through the clamping assembly 200, and the heat exchanger is clamped through the first clamping member 110 and the second clamping member 120. Further, one end of the locking assembly 300 is disposed on the first clamping member 110, and the other end is disposed on the second clamping member 120, so that the relative positions of the first clamping member 110 and the second clamping member 120 are locked by the locking assembly 300, which can effectively avoid the influence on the stability of the heat exchanger clamping caused by the movement of the second clamping member 120 relative to the first clamping member 110 due to the driving failure of the clamping assembly 200 to the second clamping member 120. After the heat exchanger is machined, the locking assembly 300 unlocks the positions of the first clamping piece 110 and the second clamping piece 120, so that the second clamping piece 120 moves in the direction away from the first clamping piece 110, the heat exchanger can be clamped, and the heat exchanger is convenient to discharge. Through the clamping mechanism 10, the stability of the heat exchanger in the machining process can be ensured, and the machining quality of the heat exchanger can be effectively ensured. Meanwhile, the clamping force between the first clamping piece 110 and the second clamping piece 120 is prevented from being manually adjusted, the heat exchanger is effectively prevented from being damaged by clamping, and the rejection rate of the heat exchanger is reduced.

Referring to fig. 1 and fig. 2, in an embodiment, the clamping assembly 200 includes a driving source 210 and an abutting member 220, the abutting member 220 can abut against the second clamping member 120, and the driving source 210 is configured to drive the abutting member 220 to push the second clamping member 120 to move toward the first clamping member 110. The driving source 210 can facilitate driving the abutting member 220, and further facilitate pushing the second clamping member 120 to move toward the first clamping member 110 through the abutting member 220.

In this embodiment, the abutting member 220 is rotatably disposed relative to the first clamping member 110, the driving source 210 is configured to drive one end of the abutting member 220 to rotate relative to the first clamping member 110, so that the other end of the abutting member 220 abuts on a side of the second clamping member 120 opposite to the first clamping member 110, and the abutting member 220 can push the second clamping member 120 to move toward the first clamping member 110. Since the abutting member 220 is rotatable relative to the first clamping member 110, and the driving source 210 can be disposed on a side of the abutting member 220 facing the first clamping member 110, so that the other end of the abutting member 220 abuts against the second clamping member 120, and the driving source 210 is prevented from being disposed on a side of the second clamping member 120 facing away from the first clamping member 110, which increases the size of the clamping mechanism 10 and is not beneficial to the compact configuration of the structure.

In other embodiments, the abutting part 220 may be directly abutted against a side of the second clamping member 120 opposite to the first clamping member 110, and the driving source 210 directly drives the abutting part 220 to move relative to the first clamping member 110, so as to push the second clamping member 120 to move in a direction approaching to the first clamping member 110.

Optionally, a limiting groove 122 is formed on a side of the second clamping member 120 opposite to the first clamping member 110, and the abutting member 220 abuts against the limiting groove 122. The second clamping piece 120 can be limited on the abutting piece 220 by arranging the limiting groove 122 on the second clamping piece 120, so that the stability of the abutting piece 220 abutting against the second clamping piece 120 can be improved, the position of the second clamping piece 120 can be effectively limited, the second clamping piece 120 is prevented from being dislocated relative to the first clamping piece 110, and the clamping stability of the second clamping piece 120 and the first clamping piece 110 is improved.

In this embodiment, the driving source 210 is an air cylinder, and the air cylinder pushes one end of the abutting member 220, so that the other end of the abutting member 220 pushes the second clamping member 120 to move. In other embodiments, the driving source 210 may also be a motor-driven transmission structure as long as pushing on the abutting member 220 can be achieved.

Specifically, the piston rod of the driving source 210 is rotatably connected to one end of the abutting member 220, so that when the piston rod pushes the abutting member 220, the abutting member 220 can be rotated around the rotation axis of the abutting member 220, and the pushing of the second clamping member 120 is realized. When the heat exchanger needs to be blanked, the piston rod is retracted, the abutting part 220 can be driven to move in the direction away from the second clamping part 120, the second clamping part 120 and the first clamping part 110 can be conveniently separated, and then blanking of the heat exchanger and feeding of the next heat exchanger can be conveniently achieved. In other embodiments, the piston rod of the driving source 210 may only abut against the abutting piece 220, and when clamping is required, only the piston rod needs to be able to push the abutting piece 220.

In one embodiment, the clamping assembly 200 further comprises a compensation source 230, wherein the compensation source 230 is configured to drive one end of the abutment member 220 to rotate relative to the first clamping member 110. The compensation source 230 is arranged to prevent the driving source 210 from pushing the abutting member 220 insufficiently, so as to prevent the unstable clamping action between the second clamping member 120 and the first clamping member 110, or when the second clamping member 120 does not reach the designated clamping position, the compensation source 230 can further push the abutting member 220, so that the abutting member 220 pushes the second clamping member 120 to reach the designated clamping position, and the stability of the clamping assembly 100 for clamping the heat exchanger is effectively ensured.

In this embodiment, the compensation source 230 is an air cylinder, and the air cylinder pushes the abutting member 220, so that the abutting member 220 pushes the second clamping member 120 to move. In other embodiments, the compensation source 230 may also be a motor-driven transmission structure as long as pushing on the abutting member 220 can be achieved.

In particular, the compensation source 230 can abut on a side of the abutment 220 facing the first clamp 110, and the compensation source 230 can push the abutment 220 to rotate relative to the first clamp 110. Since the abutting member 220 is rotatable relative to the first clamping member 110, and further pushes one end of the abutting member 220, the other end of the abutting member 220 can push the second clamping member 120 to move. By pushing one end of the abutment member 220 by the compensation source 230, the compensation source 230 is located at one side of the abutment member 220 facing the first clamping member 110, which can avoid the size increase of the clamping mechanism 10, and is favorable for the compact arrangement of the structure.

In other embodiments, the compensation source 230 may also be disposed on a side of the second clamping member 120 opposite to the first clamping member 110, and the compensation source 230 directly pushes the other end of the abutting member 220 to push the second clamping member 120 to move.

In this embodiment, the compensation source 230 is only arranged in abutment with the abutment 220, and the compensation source 230 is not connected to the abutment 220. When the driving source 210 drives the abutting piece 220 to move or rotate relative to the first clamping piece 110, the compensation source 230 does not move along with the abutting piece 220, and the compensation source 230 can be prevented from interfering with the movement of the abutting piece 220. After the driving source 210 drives the second clamping member 120 to the clamping position, the compensating source 230 can be selectively made to push the abutting member 220 to improve the stability of the clamping of the first clamping member 110, or the compensating source 230 is not activated. When the driving source 210 does not push the second clamping member 120 to the designated clamping position, the compensation source 230 is started to push the abutting member 220, so that the second clamping member 120 moves to the designated clamping position, and the clamping stability is improved.

In one embodiment, the clamping assembly 200 further comprises a cushion 240, the cushion 240 is disposed on a side of the abutting member 220 facing the compensation source 230, and the compensation source 230 can abut on the cushion 240. The cushion pad 240 can prevent the compensation source 230 from directly abutting on the abutting piece 220 to cause rigid impact, which not only affects the stability of the structure, but also generates noise. The impact force of the compensation source 230 on the abutment 220 can be effectively buffered by providing the buffer pad 240.

Referring to fig. 1 and fig. 2, in an embodiment, the clamping mechanism 10 further includes a first adjusting member 400, the clamping assembly 200 is disposed on the first adjusting member 400, and the first clamping member 110 is disposed on the first adjusting member 400 and can adjust a position on the first adjusting member 400 in a direction approaching to or departing from the second clamping member 120. Specifically, the abutting member 220 is rotatably disposed on the first adjusting member 400.

In use, the clamping assembly 100 can be made to drive the second clamping member 120 to be in a clamping state, and the first clamping member 110 is adjusted to move on the first adjusting member 400 relative to the second clamping member 120 according to the thickness of the heat exchanger to be clamped, so that the distance between the first clamping member 110 and the second clamping member 120 is consistent with the thickness of the heat exchanger to be clamped. When the first clamping member 110 is adjusted, the first clamping member 110 is fixed on the first adjusting member 400. When clamping is required, the clamping assembly 200 releases the driving of the second clamping member 120, and the heat exchanger to be clamped is arranged between the first clamping member 110 and the second clamping member 120. The regulation of first holder 110 can be effectively realized through setting up first regulating part 400 for set up first holder 110 before the centre gripping and the interval of second holder 120 under clamping state, can avoid the centre gripping in-process because the centre gripping dynamics is unstable and lead to the centre gripping unstability or bad with the heat exchanger clamp. In the adjusting process, only the position of the first clamping piece 110 needs to be adjusted, the clamping assembly 200 does not need to be adjusted, and the adjusting efficiency is effectively improved.

In this embodiment, a first fixing hole is formed in the first clamping member 110, a first adjusting hole is formed in the first adjusting member 400, the first adjusting hole is correspondingly communicated with the first fixing hole, the first adjusting hole and/or the first fixing hole are/is a strip-shaped hole, and the length direction of the strip-shaped hole is the direction from the first clamping member 110 to the second clamping member 120. Because the length direction of the strip-shaped hole is the direction from the first clamping piece 110 to the second clamping piece 120, when the position of the first clamping piece 110 is adjusted, the first clamping piece 110 passes through the first fixing hole and the first adjusting hole through the fastening screw, and the first clamping piece 110 is fixed on the first adjusting piece 400. In other embodiments, the fixing of the first clamping member 110 on the first adjusting member 400 can also be realized through a clamping structure, as long as the first clamping member 110 after the position adjustment can be conveniently fixed on the first adjusting member 400.

In an embodiment, the first clamping member 110 has a first sliding slot, and the first adjusting member 400 is inserted into the first sliding slot and can adjust the position in the first sliding slot along a direction approaching or departing from the second clamping member 120. In other embodiments, the first sliding groove may also be opened on the first adjusting member 400, and a guide block is formed on the first clamping member 110, and the guide block is inserted into the first sliding groove and can slide in the first sliding groove.

Referring to fig. 1, in an embodiment, the clamping mechanism 10 further includes a second adjusting member 500, the first adjusting member 400 and the second adjusting member 500 are respectively disposed on two opposite ends of the first clamping member 110, the locking assembly 300 is disposed on the second adjusting member 500, and the first clamping member 110 can adjust a position on the second adjusting member 500 in a direction approaching to or departing from the second clamping member 120. Because the first adjusting part 400 and the second adjusting part 500 are respectively disposed on two opposite ends of the first clamping part 110, the position adjusting stability of the first clamping part 110 relative to the second clamping part 120 can be further improved.

In the present embodiment, the locking assembly 300 is used for locking the positions of the second clamping member 120 and the second adjusting member 500. Since the locking assembly 300 is disposed on the second adjusting member 500, the locking assembly 300 is in a locked state when adjusting, and the first clamping member 110 is fixed on the second adjusting member 500 after the first clamping member 110 is adjusted. The positions of the first clamping member 110 and the second clamping member 120 can be locked by locking the positions of the second adjusting member 500 and the second clamping member 120. And through the first adjusting part 400 and the second adjusting part 500, when adjusting according to the thickness of the heat exchanger, only the position of the first clamping part 110 needs to be adjusted, and the clamping assembly 200 and the locking assembly 300 do not need to be adjusted, so that the adjusting process is more convenient and the adjusting efficiency is higher.

In the present embodiment, the second regulating member 500 is spaced apart from the first regulating member 400. In other embodiments, the first adjusting member 400 and the second adjusting member 500 may also be formed as one component by a connecting structure, as long as the position adjustment of the first clamping member 110 relative to the second clamping member 120 can be conveniently achieved.

In this embodiment, a second fixing hole is formed in the first clamping member 110, a second adjusting hole is formed in the second adjusting member 500, the second adjusting hole is correspondingly communicated with the second fixing hole, the second adjusting hole and/or the second fixing hole are/is a strip-shaped hole, and the length direction of the strip-shaped hole is the direction of the first clamping member 110 facing the second clamping member 120. Because the length direction in bar hole is the direction of first holder 110 towards second holder 120, and then after first holder 110 has adjusted the position, passes second fixed orifices and second regulation hole through fastening screw, and then realizes the fixed of first holder 110 on second regulating part 500. In other embodiments, the first clamping member 110 can be fixed on the second adjusting member 500 by a clamping structure, as long as the first clamping member 110 after the position is adjusted can be conveniently fixed on the second adjusting member 500.

In an embodiment, the first clamping member 110 has a second sliding slot, and the second adjusting member 500 is inserted into the second sliding slot and can adjust the position in the second sliding slot along a direction approaching or departing from the second clamping member 120. In other embodiments, the second sliding slot may also be opened on the second adjusting member 500, and a guide block is formed on the first clamping member 110, and the guide block is inserted into the second sliding slot and can slide in the second sliding slot.

Referring to fig. 1 again, in an embodiment, a positioning element 600 is disposed between the first clamping element 110 and the second clamping element 120, and a thickness of the positioning element 600 is the same as a thickness of the heat exchanger. Before adjusting the position of the first clamping member 110, a positioning member 600 having a thickness corresponding to the thickness of the heat exchanger is disposed between the first clamping member 110 and the second clamping member 120, while the clamping assembly 200 is in a clamping state and the locking assembly 300 is in a locking state. So that the first clamping member 110 moves relative to the second clamping member 120, and the positioning member 600 is clamped between the first clamping member 110 and the second clamping member 120, and the first clamping member 110 is fixed on the first adjusting member 400, so as to fix the position of the first clamping member 110.

When the heat exchanger needs to be clamped, the clamping assembly 200 is released from the clamping state, the locking assembly 300 is released from the locking state, and then the second clamping member 120 can move relative to the first clamping member 110, so that the heat exchanger can be conveniently clamped between the first clamping member 110 and the second clamping member 120. When the first clamping member 110 and the second clamping member 120 are clamped and locked, the distance between the first clamping member 110 and the second clamping member 120 is the thickness of the heat exchanger. The adjusting efficiency of the first clamping part 110 can be effectively improved by arranging the positioning part 600, the positioning part 600 can be replaced according to the thickness of different heat exchangers, the adaptability of the clamping mechanism 10 can be effectively improved, and the stability of heat exchanger clamping is ensured.

In one embodiment, the positioning member 600 is detachably mounted on the first clamping member 110 or the second clamping member 120. The spacer 600 may be replaced according to the thickness of the heat exchanger. When the heat exchanger is clamped, the heat exchanger can be abutted against the positioning piece 600, and the position of the heat exchanger between the first clamping piece 110 and the second clamping piece 120 is positioned through the positioning piece 600, so that the stability of clamping the heat exchanger is further improved.

In one embodiment, the clamping assembly 200 and the locking assembly 300 are respectively located on two opposite ends of the second clamping member 120, the clamping assembly 200 is used for driving one end of the second clamping member 120 to move towards or away from the first clamping member 110, and the locking assembly 300 is used for locking the relative position of the other end of the second clamping member 120 and the first clamping member 110. By respectively arranging the clamping assembly 200 and the locking assembly 300 on the two opposite ends of the second clamping member 120, the clamping of the clamping assembly 200 and the locking of the locking assembly 300 can be prevented from interfering with each other.

Referring to fig. 3 and 4, in an embodiment, the locking assembly 300 includes a connecting member 310 and a locking member 320, one end of the connecting member 310 is disposed on the first clamping member 110, the locking member 320 is disposed on the second clamping member 120, and the locking member 320 is used for locking the other end of the connecting member 310. Since the connecting member 310 and the locking member 320 are respectively disposed on the first clamping member 110 and the second clamping member 120, when the locking member 320 locks the other end of the connecting member 310, the relative positions of the first clamping member 110 and the second clamping member 120 can be locked. Specifically, one end of the connecting member 310 is disposed on the second adjusting member 500, so that when the first clamping member 110 adjusts the position on the second adjusting member 500, the connecting member 310 and the locking member 320 are prevented from moving along with the first clamping member 110, and the locking assembly 300 can be prevented from being adjusted.

In another embodiment, one end of the connecting member 310 may be further disposed on the second clamping member 120, the locking member 320 is disposed on the first clamping member 110, and the locking member 320 is used for locking the other end of the connecting member 310. It is sufficient that the locking member 320 locks the other end of the connecting member 310, so as to lock the relative positions of the first clamping member 110 and the second clamping member 120. Specifically, the locking member 320 may be provided on the second regulating member 500.

In one embodiment, the second clamping member 120 is provided with a connecting block 330 (as shown in fig. 1), and one end of the connecting member 310 is mounted on the connecting block 330. The mounting of one end of the connecting member 310 on the first clamping member 110 is further facilitated by the provision of the connecting block 330. In other embodiments, the connection block 330 may be further disposed on the second adjustment member 500, and one end of the connection member 310 is mounted on the connection block 330.

Further, one end of the connecting member 310 is adjustable in position relative to the connecting block 330 in a direction toward the second clamping member 120. By adjusting the position of one end of the connecting member 310 relative to the connecting block 330, the locking force between the first clamping member 110 and the second clamping member 120 can be conveniently adjusted, so as to improve the stability of locking the positions of the first clamping member 110 and the second clamping member 120. In this embodiment, a connecting hole is formed in the connecting block 330, an internal thread is formed on the inner wall of the connecting hole, an external thread is formed on the outer wall of one end of the connecting member 310, and the position of the connecting member 310 relative to the connecting block 330 is adjusted by the cooperation of the internal thread and the external thread.

In one embodiment, the locking member 320 includes a pushing source 322 and a locking portion 324, the locking portion 324 is provided with a locking hole, the connecting member 310 includes a connecting portion and a limiting portion 312 connected to the connecting portion, the pushing source 322 is used for driving the locking portion 324 to move, so that the connecting portion passes through the locking hole.

Specifically, one end of the connecting portion facing away from the limiting portion 312 is disposed on the second clamping member 120, the locking portion 324 is disposed on the second adjusting member 500, and the limiting portion 312 can abut against a side of the locking portion 324 facing away from the second clamping member 120. Or one end of the connecting part, which faces away from the limiting part 312, is arranged on the second adjusting piece 500, the locking part 324 is arranged on the second clamping piece 120 and is movable relative to the second clamping piece 120, and the limiting part 312 can abut against one side, which faces away from the second clamping piece 120, of the locking part 324.

When the locking is required, the connecting portion passes through the locking hole, and the limiting portion 312 abuts against the locking portion 324, so that the connecting member 310 can be locked, and the positions of the first clamping member 110 and the second clamping member 120 can be locked. When the unlocking is required, the connecting portion is made to exit from the locking hole, so that the limiting effect of the locking portion 324 on the limiting portion 312 is avoided, and the locking of the positions of the first clamping member 110 and the second clamping member 120 can be released.

In this embodiment, the locking portion 324 is further provided with a moving hole 326, the moving hole 326 is communicated with the locking hole, the pushing source 322 is configured to drive the locking portion 324 to move, so that the connecting portion can move from the locking hole to the moving hole 326, and the size of the moving hole 326 is greater than or equal to the size of the limiting portion 312. When locking is required, the pushing source 322 drives the locking portion 324 to move, so that the connecting portion moves into the locking hole from the communication position between the moving hole 326 and the locking hole, and at this time, the limiting portion 312 can abut against the locking portion 324, thereby locking the positions of the first clamping member 110 and the second clamping member 120. When unlocking is required, the pushing source 322 drives the locking portion 324 to move, so that the connecting portion moves from the communication position to the moving hole 326, and since the size of the moving hole 326 is larger than or equal to that of the limiting portion 312, the limiting portion 312 can pass through the moving hole 326, the locking portion 324 is prevented from limiting the movement of the connecting member 310, and further the movement of the second clamping member 120 relative to the first clamping member 110 is prevented from being limited.

In the present embodiment, the moving direction of the pushing source 322 driving the locking portion 324 intersects with the moving direction of the second clamping member 120. Specifically, the locking part 324 is provided on the second adjuster 500, the guide part 510 is provided on the second adjuster 500, and the locking part 324 is provided on the guide part 510 to be movable on the guide part 510. The stability of the movement of the locking portion 324, and thus the stability of the locking portion 324 locking the connector 310, can be improved by providing the guide portion 510.

Referring to fig. 5 and 6, an embodiment of the pipe expander 20 includes the clamping mechanism 10 and the pipe expander assembly 20 of any of the above embodiments, and the pipe expander assembly is disposed at one side of the clamping mechanism 10. When the heat exchanger expanding device is used, a heat exchanger of a to-be-expanded pipe is clamped and positioned on the clamping mechanism 10, and the pipe expanding assembly is positioned on the heat exchanger, so that pipe expanding of the heat exchanger is conveniently realized.

In one embodiment, the pipe expander 20 further includes a moving assembly 201, the clamping mechanism 10 is disposed on the moving assembly 201, and the clamping mechanism 10 can move on the moving assembly 201. The movement of the assembly 201 facilitates the adjustment of the position of the clamping mechanism 10 and thus improves the adaptability of the pipe expander 20.

In this embodiment, the number of the clamping mechanisms 10 is at least two, the two clamping mechanisms 10 are arranged in parallel on the moving assembly 201, and the single clamping mechanism 10 can move on the moving assembly 201, so that the adjustment of the distance between the two adjacent clamping mechanisms 10 is facilitated, and heat exchangers of different sizes can be clamped conveniently.

Specifically, the moving assembly 201 includes a moving rail 202 and a driving member 203, and the driving member 203 is used for driving the clamping mechanism 10 to move on the moving rail 202. Each clamping mechanism 10 can correspond to one driving part 203, so that different clamping mechanisms 10 can be conveniently driven to move through different driving parts 203, and the adjusting efficiency is improved. In the present embodiment, the driving member 203 drives the clamping mechanism 10 to move through the chain. In other embodiments, the driving member 203 may drive the clamping mechanism 10 to move in other manners.

In this embodiment, there may be a plurality of clamping mechanisms 10, the plurality of clamping mechanisms 10 may be divided into at least two groups, each group of clamping mechanisms 10 may clamp a heat exchanger correspondingly, and the tube expansion efficiency of the heat exchanger may be improved. For example, the plurality of clamping mechanisms 10 are divided into two groups, and the two groups of clamping mechanisms 10 are respectively disposed on two opposite sides of the moving assembly 201. Of course, the clamping mechanisms 10 may be divided into three groups or other numbers, and the clamping mechanisms 10 of different groups are disposed around the circumference of the moving assembly 201 and can move along the axial direction of the moving assembly 201.

In this embodiment, along the axial direction of the moving assembly 201, the clamping mechanisms 10 located at the same position of the axial line of the moving assembly 201 in different groups are connected through the connecting block 330, wherein the driving member 203 is used for driving the connecting block 330 to move, so that simultaneous adjustment of the clamping mechanisms 10 located at the same position in different groups can be realized, and the adjustment efficiency can be effectively improved.

In an embodiment, the pipe expander 20 further includes a rotating member 204, the moving assembly 201 is disposed on the rotating member 204, and the moving assembly 201 can drive the clamping mechanism 10 to rotate on the rotating member 204. When the heat exchanger machining device is used, different procedures of heat exchanger machining can be arranged around the circumferential direction of the rotating piece 204, the clamping mechanism 10 is driven to rotate on the rotating piece 204 through the moving assembly 201, different machining procedures of heat exchanger alignment on the clamping mechanism 10 are conveniently made, and the machining efficiency of the heat exchanger machining can be effectively improved.

In one embodiment, the production line comprises the tube expander 20 of any of the above embodiments, and the tube expander 20 is capable of effectively realizing tube expansion of a heat exchanger. Specifically, the production line may further include a heat exchanger molding machine located above the work station of the tube expander 20, thereby facilitating the setting of the molded heat exchanger to the tube expander 20 for tube expansion. In other embodiments, other equipment can be provided according to the processing steps of the heat exchanger.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A clamping mechanism, comprising:

one end of the locking assembly is arranged on the first clamping piece, the other end of the locking assembly is arranged on the second clamping piece, and the locking assembly is used for locking the relative positions of the first clamping piece and the second clamping piece;

the clamping assembly is arranged on the first adjusting piece, the first clamping piece is arranged on the first adjusting piece, and the position of the first clamping piece can be adjusted on the first adjusting piece in a direction close to or far away from the second clamping piece;

the first clamping piece and the second clamping piece are respectively arranged on two opposite ends of the first clamping piece, the locking assembly is arranged on the second adjusting piece, and the first clamping piece can adjust the position on the second adjusting piece in the direction close to or far away from the second clamping piece;

the locking assembly comprises a connecting piece, a pushing source and a locking part, a locking hole is formed in the locking part, the connecting piece comprises a connecting part and a limiting part connected with the connecting part, and the pushing source is used for driving the locking part to move so that the connecting part penetrates through the locking hole;

one end of the connecting part is arranged on the first clamping part, the locking part is arranged on the second clamping part, one end of the connecting part, which is back to the limiting part, is arranged on the second adjusting part, and the limiting part can abut against one side, which is back to the first clamping part, of the locking part; or alternatively

One end of the connecting piece is arranged on the second clamping piece, one end, back to the limiting part, of the connecting part is arranged on the second clamping piece, the locking part is arranged on the second adjusting piece, and the limiting part can abut against one side, back to the second clamping piece, of the locking part.

2. The clamping mechanism as recited in claim 1, wherein the clamping assembly includes a driving source and an abutment member, the abutment member being capable of abutting against the second clamping member, the driving source being configured to drive the abutment member to urge the second clamping member to move in a direction toward the first clamping member.

3. The clamping mechanism as claimed in claim 2, wherein said abutment member is rotatably provided with respect to said first clamping member, and said driving source is adapted to drive one end of said abutment member to rotate with respect to said first clamping member so as to abut the other end of said abutment member on a side of said second clamping member facing away from said first clamping member, said abutment member being capable of urging said second clamping member to move in a direction approaching said first clamping member.

4. The clamping mechanism as recited in claim 3, further comprising a compensation source for driving rotation of one end of said abutment with respect to said first clamping member.

5. The clamping mechanism as recited in claim 4, wherein said compensation source is capable of abutting on a side of said abutment facing said first clamping member.

6. The clamping mechanism as recited in claim 5, further comprising a cushion pad disposed on a side of said abutment facing said compensation source, said compensation source being capable of abutting against said cushion pad.

7. The clamping mechanism according to any one of claims 1 to 6, wherein the first clamping member has a first fixing hole, the first adjusting member has a first adjusting hole, the first adjusting hole is correspondingly communicated with the first fixing hole, the first adjusting hole and/or the first fixing hole is a strip-shaped hole, and a length direction of the strip-shaped hole is a direction of the first clamping member facing the second clamping member.

8. The clamping mechanism according to any one of claims 1 to 6, wherein the first clamping member is provided with a second fixing hole, the second adjusting member is provided with a second adjusting hole, the second adjusting hole is correspondingly communicated with the second fixing hole, the second adjusting hole and/or the second fixing hole are/is a strip-shaped hole, and the length direction of the strip-shaped hole is the direction of the first clamping member facing the second clamping member.

9. The clamping mechanism as claimed in any one of claims 1 to 6, wherein the locking portion further defines a moving hole, the moving hole is communicated with the locking hole, the pushing source is configured to drive the locking portion to move, so that the connecting portion can move from the locking hole to the moving hole, and the size of the moving hole is greater than or equal to that of the limiting portion.

10. The clamping mechanism as claimed in any one of claims 1 to 6, wherein a positioning member is disposed between the first clamping member and the second clamping member, and the thickness of the positioning member is consistent with that of the heat exchanger.

11. The clamping mechanism as recited in claim 10, wherein said positioning member is removably mounted on said first clamping member or said second clamping member.

12. A pipe expander, characterized in that the pipe expander comprises:

the clamping mechanism of any one of claims 1-11; and

13. The pipe expander of claim 12, further comprising a moving assembly, the clamping mechanism being disposed on the moving assembly, the clamping mechanism being movable on the moving assembly.

14. The tube expander of claim 13, further comprising a rotatable member, wherein the moving assembly is disposed on the rotatable member, and wherein the moving assembly is capable of rotating the clamping mechanism on the rotatable member.

15. A production line, comprising a pipe expander as claimed in any one of claims 12 to 14.