CN219503482U - Clamping device for J-shaped pipe - Google Patents

Abstract

The utility model discloses a clamping device of a J-shaped pipe, which comprises a straight pipe section and a hook section, wherein the clamping device comprises a first clamping module, a second clamping module positioned on the right side of the first clamping module and a clamping die driver capable of driving the first clamping module and the second clamping module to move relatively, a clamping pipe shaping structure capable of clamping the J-shaped pipe and keeping the J-shaped pipe in a fixed shape is arranged between the first clamping module and the second clamping module, an avoidance notch for a punching needle to move in is arranged on the first clamping module and/or the second clamping module, and when the J-shaped pipe is clamped between the first clamping module and the second clamping module, the inner bending side of the free end of the hook section is exposed in the avoidance notch. The utility model can shape the J-shaped tube, improves the dimensional accuracy of the J-shaped tube, and the reserved avoiding notch can be used for an external punching needle to extend into and punch the J-shaped tube, thereby being beneficial to punching the J-shaped tube while clamping the compression molded J-shaped tube.

Description

Clamping device for J-shaped pipe

Technical Field

The utility model relates to the technical field of production of raw materials of heat exchangers, in particular to a clamping device of a J-shaped tube.

Background

The tube-fin heat exchanger has wide application in refrigeration industry as a compact heat exchanger, and the main raw materials are copper tubes and radiating fins.

In some special fin-tube heat exchangers, it is necessary to use a J-tube 1 as shown in fig. 1, which J-tube 1 comprises a straight tube section 11 and a hooked section 12, wherein the free end of the hooked section 12 is provided with a tube hole 101 on the inner curved side. Currently, the method of producing such a J-tube 1 is: firstly, a straight pipe with proper length is cut out, then the straight pipe is wound and bent against a bending film, a J-shaped pipe can be formed, then the end part of the J-shaped pipe is shaped, and finally, the J-shaped pipe is perforated, so that the J-shaped pipe 1 with the pipe hole 101 can be formed.

The production method also has the following problems that the copper pipe has certain elasticity and has certain rebound deformation after the J-shaped pipe is wound and bent, and in order to solve the problems, one common method is as follows: when the J-shaped tube is wound, the winding angle is increased, the allowance of rebound deformation is reserved, but the size deviation of the J-shaped tube is larger due to different rebound deformation amounts of different J-shaped tubes, the yield is lower, and the subsequent punching precision is adversely affected when the size deviation of the J-shaped tube is too large.

Disclosure of Invention

In view of the above, an object of the present utility model is to provide a crimping apparatus capable of crimping a J-tube which is wound and bent, and improving dimensional accuracy of the J-tube.

The utility model adopts the technical proposal for solving the technical problems that:

the utility model provides a press from both sides device of J type pipe, the J type pipe includes straight pipe section and crotch section, press from both sides the device including first clamp module, be located the second clamp module on first clamp module right side and can drive the clamp mould driver of two relative movements, be provided with the clamp pipe shaping structure that can clip the J type pipe and make the J type pipe keep fixed shape between first clamp module and the second clamp module, be provided with on first clamp module and/or the second clamp module and supply the punching pin to move wherein dodge the breach, when pressing from both sides the clamp between first clamp module and the second clamp module and have the J type pipe, the intussusception side of crotch section free end is exposed dodge in the breach.

In a preferred scheme of the utility model, the pipe clamping shaping structure comprises a J-shaped first clamping groove arranged on the right side wall of the first clamping module and a J-shaped second clamping groove arranged on the left side wall of the second clamping module, and when the first clamping module and the second clamping module are closed, a J-shaped hole for clamping and accommodating the J-shaped pipe is formed between the first clamping groove and the second clamping groove.

In a preferred embodiment of the present utility model, the first clip module is provided with an air vent that is in communication with the first clip groove.

In a preferred embodiment of the present utility model, the second clip module is provided with an air vent that is in communication with the second clip groove.

In a preferred scheme of the utility model, the opening of the avoidance notch is downward, the J-shaped hole comprises a straight hole section for clamping and accommodating a straight pipe section of the J-shaped pipe and a bent hole section for clamping and accommodating a hook section of the J-shaped pipe, and an inward bent part of one end of the bent hole section, which is far from the straight hole section, is overlapped with the avoidance notch.

In a preferred scheme of the utility model, openings at two ends of the J-shaped hole are downward, a guide hole capable of guiding left and right is arranged on the first clamp module, the guide hole is positioned in a region surrounded by the first clamp groove, a bearing piece is movably arranged in the guide hole, the top outline of the bearing piece is parallel to the hook part of the first clamp groove, the front outline of the bearing piece is parallel to the straight part of the first clamp groove, when the first clamp module and the second clamp module are opened, a vertical gap for a J-shaped pipe to enter is formed between the first clamp module and the second clamp module, and a connecting pipe driver capable of driving the bearing piece to move into the vertical gap to bear the J-shaped pipe is connected to the bearing piece.

In a preferred embodiment of the present utility model, the second clip module is provided with a guide hole disposed along a left-right direction, and the first clip module is provided with a guide rod slidably engaged with the guide hole.

The beneficial effects of the utility model are as follows: the utility model can shape the J-shaped tube and improve the dimensional accuracy of the J-shaped tube. In addition, the reserved avoidance notch can be used for an external punching needle to extend into the avoidance notch and punch holes in the J-shaped tube, so that the J-shaped tube can be punched while the compression molding J-shaped tube is clamped, the automatic processing can be realized, and the working efficiency is improved.

Drawings

FIG. 1 is a cross-sectional view of a finished J-tube;

FIG. 2 is a schematic illustration of the positional relationship of a J-tube as it has not entered the clamping die assembly;

FIG. 3 is a schematic view of the structure of the J-tube falling onto the socket;

FIG. 4 is a schematic view of the structure of the clip assembly in a closed state;

FIG. 5 is an exploded view of the clamping die assembly;

FIG. 6 is a schematic view of the structure of the present utility model when used with a punching device;

fig. 7 is an enlarged view of a portion a in fig. 6.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 7, the present utility model provides a clamping device for a J-tube, where the J-tube 1 includes a straight tube section 11 and a hook section 12, and is characterized in that the clamping device includes a first clamping module 21, a second clamping module 22 located on the right side of the first clamping module 21, and a clamping die driver capable of driving the two to move relatively, a tube clamping molding structure capable of clamping the J-tube 1 and keeping the J-tube 1 in a fixed shape is provided between the first clamping module 21 and the second clamping module 22, an avoidance notch 201 is provided on the first clamping module 21, or an avoidance notch 201 is provided on the second clamping module 22, or avoidance notches 201 are provided on both the first clamping module 21 and the second clamping module 22, and when the J-tube is clamped between the first clamping module 21 and the second clamping module, an inner bending side of a free end of the hook section 12 is exposed in the avoidance notch 201.

Preferably, the first clamping module 21 and the second clamping module 22 are respectively provided with an avoidance notch 201, and when the first clamping module 21 and the second clamping module 22 are closed together, the two avoidance notches 201 jointly form an avoidance groove in which the punching needle can move.

The clamping die driver is preferably an electric push rod or a combination of motor screw-nut pairs, and can be connected with the first clamping module 21 to drive the first clamping module 21 to move left and right relative to the second clamping module 22, can also be connected with the second clamping module 22 to drive the second clamping module 22 to move left and right relative to the first clamping module 21, can also be connected with two clamping modules at the same time, and can drive the first clamping module 21 and the second clamping module 22 to synchronously and reversely move so as to enable the two clamping modules to be closed or opened.

Specifically, the pipe clamping and shaping structure comprises a first J-shaped clamping groove 211 arranged on the right side wall of the first clamping module 21 and a second J-shaped clamping groove 221 arranged on the left side wall of the second clamping module 22, wherein when the first clamping module 21 and the second clamping module 22 are closed, a J-shaped hole 202 for clamping and accommodating the J-shaped pipe 1 is formed between the first clamping groove 211 and the second clamping groove 221. The opening of dodging breach 201 down, the both ends opening of J-shaped hole 202 all down, and J-shaped hole 202 is including the straight hole section that is used for pressing from both sides tight straight tube section 11 of accomodating J-shaped pipe 1 and the curved hole section that is used for pressing from both sides tight crotch section 12 of accomodating J-shaped pipe 1, and the inturned part of the one end of keeping away from straight hole section of curved hole section coincides with dodging breach 201.

Referring to fig. 3 to 5, a guide hole 212 capable of guiding left and right is provided in the first clip module 21, the guide hole 212 is located in a region surrounded by the first clip groove 211, a receiving piece 23 is movably provided in the guide hole 212, a top profile of the receiving piece 23 is parallel to a hooked portion of the first clip groove 211, and a front profile of the receiving piece 23 is parallel to a straight portion of the first clip groove 211. The receiving piece 23 is connected with a receiving tube driver 24, and when the first clamp module 21 and the second clamp module 22 are opened, the receiving tube driver 24 can drive the receiving tube driver to move into a vertical gap 204 between the first clamp module 21 and the second clamp module 22 so as to receive the J-shaped tube 1. The take over actuator 24 is preferably a cylinder. The method of loading the J-tube 1 into the clamp module 2 is: the J-shaped tube 1 which is formed by winding is grabbed by a manipulator, openings at two ends of the J-shaped tube 1 are downward, simultaneously, the first clamp module 21 and the second clamp module 22 are opened, the bearing piece 23 moves into a vertical gap 204 between the first clamp module 21 and the second clamp module 22, then the J-shaped tube 1 is grabbed by the manipulator to move above the vertical gap 204, then the J-shaped tube 1 falls on the bearing piece 23 freely by loosening the manipulator, the J-shaped tube 1 is initially positioned by the bearing piece 23, finally, the second clamp module 22 and the second clamp module 22 are closed, simultaneously, the bearing piece 23 is recovered into the guide hole 212, and the J-shaped tube 1 is clamped and fixed by the first clamp groove 211 and the second clamp groove 221.

In order to improve smoothness of movement during opening and closing of the clamping die 2, the second clamping module 22 is provided with a guide hole 222 arranged along the left-right direction, and the first clamping module 21 is provided with a guide rod 213 slidably engaged with the guide hole 222.

In some embodiments of the present utility model, other structures may be used, for example, a plurality of intermittent clamping grooves may be used to clamp different positions of the J-tube 1, instead of the first clamping groove 211 and the second clamping groove 221.

Referring to fig. 6 and 7, the punching device used in cooperation with the present utility model has a structure including a punching needle 4, a thimble 3, a fixed seat 51, a lifting seat 52, a lifting driver 53 provided on the fixed seat 51 and driving the lifting seat 52 to move up and down, a punching holder 54 provided on the lifting seat 52 and driving the punching holder 54 to move up and down, and a punching driver 55 provided on the lifting seat 52 and driving the punching holder 54 to move up and down, wherein the punching needle 4 is provided on an upper end of the punching holder 54 with a head of the punching needle 4 facing backward, and the thimble 3 is provided on the lifting seat 52. The lifting driver 53 is preferably a motor which drives the lifting base 52 up and down through a screw nut pair, and the punching driver 55 is preferably a cylinder.

The method for punching the J-shaped pipe by matching with the punching device comprises the following steps: when the J-shaped tube 1 is clamped and stored on the clamping die 2, the lifting driver 53 drives the lifting seat 52 to move upwards, so that the punching needle 4 extends upwards into the avoiding notch 201, and meanwhile, the thimble 3 is inserted upwards into the hook section 12 of the J-shaped tube 1. Then, the lifting seat 52 is kept still, and the punching driver 55 drives the punching support 54 and the punching needle 4 to move backwards in the avoiding notch 201, so that the pipe hole 101 can be punched on the hook section 12 of the J-shaped pipe 1. The thimble 3 is also arranged on the lifting seat 52, so that the thimble 3 is inserted into the hook section 12 before the punching needle 4 punches, and after the punching is finished, the openings at the two ends of the J-shaped tube 1 are downward, so that waste generated by punching can be automatically discharged downwards under the action of gravity.

By adopting the scheme, the utility model can receive the J-shaped tube formed by winding, shape the J-shaped tube 1 and improve the dimensional accuracy of the J-shaped tube 1. In addition, the reserved avoiding notch 201 can be used for the outside punching needle 4 to extend into and punch holes in the J-shaped tube, so that the J-shaped tube 1 can be punched while the compression molding J-shaped tube 1 is clamped, the automatic processing can be realized, and the working efficiency can be improved.

Further, the first clamping module 21 is provided with an air vent 203 in communication with the first clamping groove 211, and the second clamping module 22 is provided with an air vent 203 in communication with the second clamping groove 221. One end of the air guide hole 203 is externally connected with a high-pressure air source through an air pipe, and an electromagnetic valve is arranged on the air pipe. After the punching of the J-shaped tube 1 is completed, the punching needle 4 is withdrawn, then the first clamp module 21 and the second clamp module 22 are separated, a certain space is opened between the two, a vertical gap 204 for the J-shaped tube 1 to pass through is formed, then an electromagnetic valve on an air pipe is opened, and the first clamp groove 211 and the second clamp groove 221 are inflated, so that the J-shaped tube 1 can be smoothly separated and falls from the vertical gap 204 between the first clamp module 21 and the second clamp module 22, and automatic discharging is realized.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (6)

1. The utility model provides a clamping device of J type pipe, J type pipe (1) include straight tube section (11) and crotch section (12), its characterized in that, clamping device include first clamp module (21), be located second clamp module (22) on first clamp module (21) right side and can drive the clamp mould driver of two relative movements, be provided with the clamp pipe shaping structure that can clip J type pipe (1) and make J type pipe (1) keep fixed shape between first clamp module (21) and/or second clamp module (22), be provided with on first clamp module (21) and/or second clamp module (22) and be used for the punching pin to remove among them dodge breach (201), when pressing from both sides between first clamp module (21) and the second clamp module and pressing from both sides the clamp mould driver of two relative movements, the inner bending side of crotch section (12) free end exposes dodge breach (201).

2. The clamping device for the J-shaped pipe according to claim 1, wherein the pipe clamping shaping structure comprises a J-shaped first clamping groove (211) arranged on the right side wall of the first clamping module (21) and a J-shaped second clamping groove (221) arranged on the left side wall of the second clamping module (22), and a J-shaped hole (202) for clamping and accommodating the J-shaped pipe (1) is formed between the first clamping groove (211) and the second clamping groove (221) when the first clamping module (21) and the second clamping module (22) are closed.

3. A clamping device for a J-tube according to claim 2, characterized in that the first clamping module (21) is provided with an air vent (203) in communication with the first clamping groove (211).

4. A J-tube crimping device according to claim 2 or 3, wherein the second crimping module (22) is provided with an air vent (203) in communication with the second crimping slot (221).

5. A J-tube clamping device according to claim 2, wherein the opening of the relief notch (201) is downward, the J-shaped hole (202) comprises a straight hole section for clamping a straight pipe section (11) for accommodating the J-tube (1) and a curved hole section for clamping a hook section (12) for accommodating the J-tube (1), and an inward curved portion of an end of the curved hole section away from the straight hole section coincides with the relief notch (201).

6. The clamping device for the J-shaped pipe according to claim 5, wherein openings at two ends of the J-shaped hole (202) are downward, a guide hole (212) capable of guiding left and right is arranged on the first clamping module (21), the guide hole (212) is located in a region surrounded by the first clamping groove (211), a supporting piece (23) is movably arranged in the guide hole (212), the top contour of the supporting piece (23) is parallel to the hook part of the first clamping groove (211), the front contour of the supporting piece (23) is parallel to the straight part of the first clamping groove (211), a vertical gap (204) capable of allowing the J-shaped pipe (1) to enter is formed between the first clamping module (21) and the second clamping module (22) when the first clamping module (21) and the second clamping module (22) are opened, and the supporting piece (23) is connected with a driver connecting pipe (24) capable of driving the supporting piece to move into the vertical gap (204) to support the J-shaped pipe (1).