阅读说明：本技术 扁管扭转设备 (flat pipe torsion device ) 是由 高建华 董启军 耿时江 于 2018-05-28 设计创作，主要内容包括：本发明公开了一种扁管扭转设备,所述扁管扭转设备包括扭转夹具、驱动器和至少两个定位夹具,所述扭转夹具包括第一扭转夹具和第二扭转夹具,所述定位夹具设在所述第一扭转夹具和所述第二扭转夹具之间,且所述至少两个定位夹具中的一个邻近所述第一扭转夹具设置,所述至少两个定位夹具中的另一个邻近所述第二扭转夹具设置,所述驱动器包括第一驱动器和第二驱动器,所述第一驱动器和第二驱动器分别与所述第一扭转夹具和第二扭转夹具相连,用于驱动所述第一扭转夹具和第二扭转夹具旋转。本发明的扁管扭转设备能够实现扁管的扭转,易于控制扁管的扭转角度,生产效率高。(The invention discloses a flat pipe twisting device which comprises a twisting clamp, a driver and at least two positioning clamps, wherein the twisting clamp comprises a first twisting clamp and a second twisting clamp, the positioning clamps are arranged between the first twisting clamp and the second twisting clamp, one of the at least two positioning clamps is arranged adjacent to the first twisting clamp, the other of the at least two positioning clamps is arranged adjacent to the second twisting clamp, the driver comprises a first driver and a second driver, and the first driver and the second driver are respectively connected with the first twisting clamp and the second twisting clamp and are used for driving the first twisting clamp and the second twisting clamp to rotate. The flat tube twisting device can realize the twisting of the flat tube, is easy to control the twisting angle of the flat tube, and has high production efficiency.)

1. The utility model provides a flat pipe twists reverse equipment which characterized in that includes:

The positioning clamps are used for fixing the flat pipes;

A twisting clamp comprising a first twisting clamp for clamping a first end of the flat tube and a second twisting clamp for clamping a second end of the flat tube, the positioning clamp disposed between the first twisting clamp and the second twisting clamp, and one of the at least two positioning clamps disposed adjacent to the first twisting clamp and another of the at least two positioning clamps disposed adjacent to the second twisting clamp;

The driver comprises a first driver and a second driver, the first driver is connected with the first torsion clamp and used for driving the first torsion clamp to rotate so as to torsion the flat pipe, and the second driver is connected with the second torsion clamp and used for driving the second torsion clamp to rotate so as to torsion the flat pipe.

2. The flat tube twisting apparatus according to claim 1, wherein at least one of the first twisting jig and the second twisting jig is adjustable in longitudinal position to approach and separate from the positioning jig.

3. The flat tube twisting apparatus according to claim 2, wherein the first twist clamp is mounted on the first driver, the second twist clamp is mounted on the second driver, the first driver is adjustable in longitudinal position with the first twist clamp, and the second driver is adjustable in longitudinal position with the second twist clamp.

4. the flat pipe twisting device according to claim 1, wherein the positioning clamps are arranged in a plurality of groups at intervals in the transverse direction, each group of the positioning clamps is arranged in at least two groups at intervals in the longitudinal direction, the first twisting clamps are arranged in a plurality of groups at intervals in the transverse direction and correspond to the plurality of groups of the positioning clamps one by one, the second twisting clamps are arranged in a plurality of groups at intervals in the transverse direction and correspond to the plurality of groups of the positioning clamps one by one, and each group of the positioning clamps is arranged between the first twisting clamp and the second twisting clamp corresponding to the group of the positioning clamps in the longitudinal direction.

5. the flat tube twisting apparatus according to claim 4, further comprising a first linkage assembly connected to the plurality of first twisting jigs to link the plurality of first twisting jigs, wherein the first driver is one, and one first driver drives the plurality of first twisting jigs together through the first linkage assembly.

6. The flat tube twisting apparatus according to claim 5, further comprising a second linkage assembly connected to the plurality of second twisting jigs to link the plurality of second twisting jigs, wherein the second driver is one, and one second driver drives the plurality of second twisting jigs together through the second linkage assembly.

7. The flat tube twisting device according to any one of claims 1 to 6, wherein the twisting jig comprises a shaft connected to the driver, the shaft having a free end with a first slot for engaging an end of the flat tube.

8. The flat tube twisting device according to any one of claims 1 to 7, wherein the driver is an electric motor.

9. The flat tube twisting apparatus according to any one of claims 1 to 8, wherein the positioning jig is a positioning socket having a second slot on a surface thereof adapted to engage the flat tube.

10. the flat tube twisting apparatus according to any one of claims 1 to 9, further comprising a base, wherein the first driver, the first twisting jig, the positioning jig, the second twisting jig, and the second driver are provided on the base in a longitudinal direction.

11. A flat tube twisting device is characterized by comprising a base, wherein a first motor, a plurality of positioning seats and a second motor are sequentially arranged on the base along the longitudinal direction of the base, an output shaft of the first motor is connected with a first rotating shaft, an output shaft of the second motor is connected with a second rotating shaft, the first rotating shaft, the plurality of positioning seats and the second rotating shaft are arranged at intervals along the longitudinal direction of the base, a free end of the first rotating shaft and a free end of the second rotating shaft are respectively provided with a first slot, the first slot of the first rotating shaft is used for being jointed with a first end of a flat tube, the first slot of the second rotating shaft is used for being jointed with a second end of the flat tube, and a second slot suitable for being jointed with the flat tube is arranged on the upper surface of each positioning seat;

At least one of the first motor, the plurality of positioning seats and the second motor is adjustable along the longitudinal position.

12. A flat tube twisting device is characterized by comprising a base, a first motor, a positioning seat, a second motor, a first linkage component, a second linkage component, a plurality of first rotating shafts and a plurality of second rotating shafts,

The positioning seats are arranged at intervals in the transverse direction of the base, a plurality of groups of the positioning seats are arranged at intervals in each group in the longitudinal direction of the base, a plurality of first rotating shafts are arranged at intervals in the transverse direction of the base and correspond to the plurality of groups of the positioning seats one by one, a plurality of second rotating shafts are arranged at intervals in the transverse direction of the base and correspond to the plurality of groups of the positioning seats one by one, each group of the positioning seats are located between the first rotating shaft and the second rotating shaft corresponding to the group of the positioning seats in the longitudinal direction of the base, and second slots suitable for being connected with the flat tubes are formed in the upper surfaces of the positioning seats;

An output shaft of the first motor is connected with the plurality of first rotating shafts through the first linkage assembly, an output shaft of the second motor is connected with the plurality of second rotating shafts through the second linkage assembly, a free end of each first rotating shaft and a free end of each second rotating shaft are respectively provided with a first slot, the first slots of the first rotating shafts are used for being jointed with first ends of the flat tubes, and the free ends of the second rotating shafts are used for being jointed with second ends of the flat tubes;

At least two positioning seats in each group, and at least one of the first rotating shaft and the second rotating shaft corresponding to the positioning seats in each group are adjustable along the longitudinal position of the base.

Technical Field

The invention relates to the technical field of heat exchange tube processing, in particular to a flat tube twisting device.

Background

Parallel flow heat exchangers, such as microchannel heat exchangers, mainly comprise headers, flat tubes and fins, wherein the structure of the flat tubes has a great influence on the function and efficiency of the whole heat exchanger. When the carbon dioxide refrigerant is used, the collecting pipe needs to bear larger pressure, so the pressure resistance of the collecting pipe needs to be improved by adopting a method of reducing the pipe diameter of the collecting pipe. The pipe diameter of the reduced collecting pipe is usually smaller than the width of the flat pipe, so that the flat pipe needs to be twisted to form twisted sections at two ends of the flat pipe respectively. However, in the related art, the torsion of the flat tubes is manually performed, so that the torsion angle is not easy to control, and the production efficiency is reduced.

Disclosure of Invention

Therefore, the invention provides the flat tube twisting device which can realize twisting of the flat tube, is easy to control the twisting angle of the flat tube and has high production efficiency.

The flat tube twisting device according to an embodiment of the first aspect of the present invention includes: the positioning clamps are used for fixing the flat pipes; a twisting clamp comprising a first twisting clamp for clamping a first end of the flat tube and a second twisting clamp for clamping a second end of the flat tube, the positioning clamp disposed between the first twisting clamp and the second twisting clamp, and one of the at least two positioning clamps disposed adjacent to the first twisting clamp and another of the at least two positioning clamps disposed adjacent to the second twisting clamp; the driver comprises a first driver and a second driver, the first driver is connected with the first torsion clamp and used for driving the first torsion clamp to rotate so as to torsion the flat pipe, and the second driver is connected with the second torsion clamp and used for driving the second torsion clamp to rotate so as to torsion the flat pipe.

In some embodiments, at least one of the first twisting clamp and the second twisting clamp is adjustable in longitudinal position to approach and move away from the positioning clamp.

In some embodiments, the first twist clamp is mounted on the first driver, the second twist clamp is mounted on the second driver, the first driver is longitudinally position adjustable with the first twist clamp, and the second driver is longitudinally position adjustable with the second twist clamp.

In some embodiments, the positioning clamps are arranged in a plurality of groups at intervals in the transverse direction, each group of the positioning clamps is arranged in at least two groups at intervals in the longitudinal direction, the first twisting clamps are arranged in a plurality of groups at intervals in the transverse direction and correspond to the plurality of groups of the positioning clamps one by one, the second twisting clamps are arranged in a plurality of groups at intervals in the transverse direction and correspond to the plurality of groups of the positioning clamps one by one, and each group of the positioning clamps is arranged between the first twisting clamp and the second twisting clamp corresponding to the group of the positioning clamps in the longitudinal direction.

In some embodiments, the flat pipe twisting apparatus further includes a first linkage assembly connected to the plurality of first twisting jigs to link the plurality of first twisting jigs, one first driver driving the plurality of first twisting jigs together through the first linkage assembly.

In some embodiments, the flat tube twisting apparatus further includes a second linkage assembly connected to the plurality of second twisting clamps to link the plurality of second twisting clamps, the second driver being one, and one of the second drivers driving the plurality of second twisting clamps together through the second linkage assembly.

In some embodiments, the twist clamp includes a shaft connected to the driver, the shaft having a free end with a first slot for engaging an end of the flat tube.

In some embodiments, the drive is a motor.

In some embodiments, the positioning fixture is a positioning seat, and a second slot adapted to engage the flat tube is disposed on a surface of the positioning seat.

In some embodiments, the flat tube twisting device further includes a base, and the first driver, the first twisting jig, the positioning jig, the second twisting jig, and the second driver are longitudinally disposed on the base.

the flat tube twisting device comprises a base, wherein a first motor, a plurality of positioning seats and a second motor are sequentially arranged on the base along the longitudinal direction of the base, an output shaft of the first motor is connected with a first rotating shaft, an output shaft of the second motor is connected with a second rotating shaft, the first rotating shaft, the plurality of positioning seats and the second rotating shaft are arranged at intervals along the longitudinal direction of the base, a free end of the first rotating shaft and a free end of the second rotating shaft are respectively provided with a first slot, the first slot of the first rotating shaft is used for being jointed with the first end of the flat tube, the first slot of the second rotating shaft is used for being jointed with the second end of the flat tube, and the upper surface of each positioning seat is provided with a second slot suitable for being jointed with the flat tube; at least one of the first motor, the plurality of positioning seats and the second motor is adjustable along the longitudinal position.

The flat tube twisting device comprises a base, a first motor, positioning seats, a second motor, a first linkage assembly, a second linkage assembly, a plurality of first rotating shafts and a plurality of second rotating shafts, wherein the positioning seats are arranged at intervals along the transverse direction of the base, a plurality of groups of the positioning seats are arranged at intervals along the longitudinal direction of the base, the first rotating shafts are arranged at intervals along the transverse direction of the base and correspond to the positioning seats, the second rotating shafts are arranged at intervals along the transverse direction of the base and correspond to the positioning seats, each group of the positioning seats are arranged between the first rotating shaft and the second rotating shaft corresponding to the group of the positioning seats along the longitudinal direction of the base, and second slots suitable for being connected with the flat tubes are formed in the upper surfaces of the positioning seats; an output shaft of the first motor is connected with the plurality of first rotating shafts through the first linkage assembly, an output shaft of the second motor is connected with the plurality of second rotating shafts through the second linkage assembly, a free end of each first rotating shaft and a free end of each second rotating shaft are respectively provided with a first slot, the first slots of the first rotating shafts are used for being jointed with first ends of the flat tubes, and the free ends of the second rotating shafts are used for being jointed with second ends of the flat tubes; at least two positioning seats in each group, and at least one of the first rotating shaft and the second rotating shaft corresponding to the positioning seats in each group are adjustable along the longitudinal position of the base.

According to the flat tube twisting device provided by the embodiment of the invention, the flat tube can be twisted by arranging the positioning clamp and the rotatable twisting clamp, the twisting angle of the flat tube is easy to control, the twisting consistency of the flat tube is improved, the production efficiency is high, the manpower is reduced, and the time is saved. In addition, through being equipped with the positioning fixture multiunit and first twist reverse anchor clamps and second and twist reverse anchor clamps and all be equipped with a plurality ofly, can realize the torsion to a plurality of flat pipes, further improve production efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of a flat tube twisting device according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a twisting fixture of a flat tube twisting device according to an embodiment of the invention.

Fig. 3 is a schematic structural diagram of a positioning fixture of a flat tube twisting device according to an embodiment of the invention.

Fig. 4 is a schematic overall structure view of a flat tube twisting device according to another embodiment of the present invention.

Fig. 5 is a schematic view illustrating an initial state of a linkage assembly of a flat tube twisting apparatus according to another embodiment of the present invention.

fig. 6 is a schematic view of a linkage assembly of a flat tube twisting apparatus according to another embodiment of the present invention after actuation.

FIG. 7 is a schematic view of a twisted flat tube according to one embodiment of the present invention;

FIG. 8 is an enlarged partial view of a first end of a twisted flat tube according to one embodiment of the present invention;

FIG. 9 is an enlarged partial view of a second end of a twisted flat tube according to one embodiment of the present invention;

Fig. 10 is a schematic view of a torsion angle of the torsion flat tube according to the embodiment of the present invention;

Fig. 11 is a schematic view of a twisted flat tube according to another embodiment of the present invention.

Reference numerals:

The positioning fixture comprises a positioning fixture 1, a positioning seat 11, a second slot 12, a first positioning fixture 101, a second positioning fixture 102, a third positioning fixture 103, a twisting fixture 2, a rotating shaft 21, a first slot 22, a first twisting fixture 201, a second twisting fixture 202, a driver 3, a first driver 31, a second driver 32, a base 4, a linkage assembly 5, a first rod 51, a second rod 52, a first linkage assembly 501, a second linkage assembly 502, a baseplate 6, a first baseplate 61, a second baseplate 62, a flat tube 100, a first end section 110, a first twisting section 111, a main body section 112, a second twisting section 113 and a second end section 114.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. In the description of the present invention, it is to be understood that the terms "center," "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 device or fixture in question must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting.

As shown in fig. 1 to 7, the flat pipe twisting apparatus according to the embodiment of the present invention includes at least two positioning clamps 1, a twisting clamp 2, and an actuator 3, the positioning clamps 1 can fix the flat pipe 100, the twisting clamp 2 includes a first twisting clamp 201 and a second twisting clamp 202, the first twisting clamp 201 can clamp a first end of the flat pipe 100, the second twisting clamp 202 can clamp a second end of the flat pipe 100, the at least two positioning clamps 1 are disposed between the first twisting clamp 201 and the second twisting clamp 202, one positioning clamp 1 of the at least two positioning clamps 1 is disposed adjacent to the first twisting clamp 201, and another positioning clamp 1 of the at least two positioning clamps 1 is disposed adjacent to the second twisting clamp 202. Here, "adjacent" means that a distance between one positioning jig 1 of the at least two positioning jigs 1 and the first twisting jig 201 is far smaller than a distance between the one positioning jig 1 and the second twisting jig 202, and a distance between another positioning jig 1 of the at least two positioning jigs 1 and the second twisting jig 202 is far smaller than a distance between the another positioning jig 1 and the first twisting jig 201, wherein when the former distance is smaller than the latter distance and the former distance differs from the latter distance by at least one former distance, the former distance is called to be far smaller than the latter distance.

The driver 3 includes a first driver 31 and a second driver 32, the first driver 31 is connected to the first twisting jig 201, the first driver 31 can drive the first twisting jig 201 to rotate to twist the flat pipe 100, the second driver 32 is connected to the second twisting jig 202, and the second driver 32 can drive the second twisting jig 202 to rotate to twist the flat pipe. It will be appreciated that rotation of the twisting jig 2 is rotation of the twisting jig 2 about its axis.

Specifically, a first twisting clamp 201, at least two positioning clamps 1 and a second twisting clamp 202 are arranged at intervals in sequence, one positioning clamp 1 of the at least two positioning clamps 1 clamps a first clamping portion of the flat pipe 100 to fix the flat pipe 100, another positioning clamp 1 of the at least two positioning clamps 1 clamps a second clamping portion of the flat pipe 100 to fix the flat pipe 100, the first twisting clamp 201 clamps a first end of the flat pipe 100, the second twisting clamp 202 clamps a second end of the flat pipe 100, the first twisting clamp 201 is driven by a first driver 31 to rotate, the second twisting clamp 202 is driven by a second driver 32 to rotate, a pipe section between the first clamping portion of the flat pipe 100 and the first end of the flat pipe 100 is twisted, a pipe section between the second clamping portion of the flat pipe 100 and the second end of the flat pipe 100 is twisted, so that the first clamping portion of the flat pipe 100 and the first end of the flat pipe 100 form a first twisting section, the tube section between the second clamping portion of the flat tube 100 and the second end of the flat tube 100 forms a second torsion section. Further, the driver 3 is a motor, that is, the first driver 31 and the second driver 32 are both motors, and the torsion clamp 2 is driven to rotate by the motors, it is understood that the present invention is not limited thereto.

It can be understood that the rotation directions of the first torsion clamp 201 and the second torsion clamp 202 may be the same or different, when the rotation directions of the first torsion clamp 201 and the second torsion clamp 202 are the same, the two ends of the flat pipe 100 are twisted on the same side, and when the rotation directions of the first torsion clamp 201 and the second torsion clamp 202 are different, the two ends of the flat pipe 100 are twisted on different sides. For example, the flat tube 100 shown in fig. 7 is a twisted flat tube twisted in different directions when the rotation directions of the first twisted clamp 201 and the second twisted clamp 202 are different, that is, a twisted flat tube twisted in different sides, and the flat tube 100 shown in fig. 11 is a twisted flat tube twisted when the rotation directions of the first twisted clamp 201 and the second twisted clamp 202 are the same, that is, a twisted flat tube twisted in the same side.

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; either directly or indirectly through an intermediary, either internal to the two element holders or in an interactive relationship with the two element holders, unless expressly limited 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. 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.

According to the flat tube twisting device provided by the embodiment of the invention, the flat tube can be twisted by arranging the positioning clamp and the rotatable twisting clamp, the twisting angle of the flat tube is easy to control, the twisting consistency of the flat tube is improved, the production efficiency is high, the manpower is reduced, and the time is saved.

As shown in fig. 1 and 4, the left-right direction is defined as a longitudinal direction, and the front-rear direction is defined as a lateral direction. Specifically, the positioning jig 1 includes a first positioning jig 101, a second positioning jig 102, and a third positioning jig 103 that are provided at intervals in the longitudinal direction (left-right direction in fig. 1), and thus, a first twisting jig 201, the first positioning jig 101, the second positioning jig 102, the third positioning jig 103, and a second twisting jig 202 are sequentially arranged at intervals in the longitudinal direction, where the first twisting jig 201 clamps the left end of the flat pipe 100, the first positioning jig 101 clamps the first clamping portion of the flat pipe 100, the second positioning jig 102 clamps the substantially middle position of the flat pipe 100, the third positioning jig 103 clamps the second clamping portion of the flat pipe 100, and the second twisting jig 202 clamps the right end of the flat pipe 100.

It is understood that, as shown in fig. 7 and 11, the flat pipe twisting device can simultaneously twist both end sides of the flat pipe 100, twist the pipe section clamped between the left end of the flat pipe 100 in the first twisting jig 201 and the first clamping portion of the flat pipe 100 fixed by the first positioning jig 101 to form a first twisted section 111, twist the pipe section clamped between the right end of the flat pipe 100 in the second twisting jig 202 and the second clamping portion of the flat pipe 100 fixed in the third positioning jig 103 to form a second twisted section 113, so that the twisted flat pipe 100 includes a first end section 110, a first twisted section 111, a main body section 112, a second twisted section 113 and a second end section 114, wherein the first twisted section 111 connects the first end section 110 and the main body section 112, the second twisted section 113 connects the second end section 114 and the main body section 112, the first end section 110 is formed by the end portion of the flat pipe 100 clamped in the first twisting jig 201, second end segment 114 is formed by the end of flat tube 100 clamped in second twist clamp 202.

More specifically, the first twisted section 111 is twisted such that the main section 112 forms an angle α with the first end section 110 (see fig. 7, 8 and 10). More specifically, the angle α is an angle between a plane S1 defined by the length direction (the left-right direction shown in fig. 7) and the width direction of the main body segment 112 and a plane S2 defined by the length direction and the width direction of the first end segment 110. The included angle α is also referred to as the twist angle α. The inventor combines the pipe diameter required by the collecting pipe of the heat exchanger, and obtains the optimal recommended range of the torsion angle alpha through mathematical modeling and model optimization calculation analysis: alpha is more than or equal to 15 degrees and less than 40 degrees. Similarly, the second twisted section 113 formed by twisting makes an angle (combining fig. 7, 9 and 10) between the main section 112 and the second end section 110, which is an angle between a plane S1 defined by the length direction and the width direction of the main section 112 and a plane S3 defined by the length direction and the width direction of the second end section 114. Wherein the included angle is substantially equal to the included angle alpha. In some embodiments, the angle is equal to the angle α, and it can be similarly found that the preferred range of the angle is the same as the preferred range of α (15 ≦ α < 40 °).

In some embodiments, the flat pipe twisting apparatus further includes a base 4, and the first driver 31, the first twisting jig 201, the positioning jig 1, the second twisting jig 202, and the second driver 32 are longitudinally provided on the base 4. Specifically, the base 4 extends along the longitudinal direction, the first driver 31, the positioning fixture 1 and the second driver 32 are all arranged on the upper surface of the base 4 and are sequentially and alternately arranged along the longitudinal direction, the output shaft of the first driver 31 is located at the right end of the first driver 31 and connected with the first twisting fixture 201, the output shaft of the second driver 32 is located at the left end of the second driver 32 and connected with the second twisting fixture 202, and the first twisting fixture 201, the positioning fixture 3 and the second twisting fixture 202 are spaced apart from each other.

In some embodiments, as shown in fig. 1 and 3, the twist clamp 2 comprises a shaft 21 connected to the driver 3, the free end of the shaft 21 having a first slot 22 for engaging an end of the flat tube 100. It will be appreciated that if the first end of the shaft 21 is connected to the driver 3, the second end of the shaft 21 is a free end and has a first slot 22. Specifically, the rotating shaft 21 extends in the longitudinal direction, one end of the rotating shaft 21 is connected to the driver 3, the other end of the rotating shaft 21 is provided with a first slot 22, and an end portion of the flat tube 100 can be engaged in the first slot 22, and it is understood that the other end of the rotating shaft 21 is a free end of the rotating shaft 21. Here, "engage" means that the end of flat tube 100 can be inserted into first slot 22 and the end of flat tube 100 is not easily deviated from first slot 22 when shaft 21 rotates, so that the end of flat tube 100 engages with first slot 22.

In some embodiments, as shown in fig. 1 and 2, the positioning fixture 1 is a positioning seat 11, and a second slot 12 adapted to engage with the flat tube 100 is disposed on a surface of the positioning seat 11. Specifically, the upper surface of the positioning seat 11 has a second engaging groove 12, and the flat pipe 100 can be inserted into the second slot 12 along the width direction of the flat pipe 100 so that the flat pipe 100 is engaged with the second slot 12, thereby fixing the flat pipe 100. It is understood that there are at least two positioning seats 11, and at least two positioning seats 11 are arranged at a distance from each other in the longitudinal direction.

In some embodiments, at least one of the first twisting jig 201 and the second twisting jig 202 is adjustable in longitudinal position to approach and depart from the positioning jig 1. It is understood that only first twisting jig 201 may be adjustable in longitudinal position, only first twisting jig 201 may be enabled to be closer to and farther from positioning jig 1, only second twisting jig 202 may be adjustable in longitudinal position, only second twisting jig 202 may be enabled to be closer to and farther from positioning jig 1, and both first twisting jig 201 and second twisting jig 202 may be adjustable in longitudinal position, so that both first twisting jig 201 and second twisting jig 202 may be enabled to be closer to and farther from positioning jig 1. It can be understood that the distance between the twisting clamp 2 and the positioning clamp 1 can be adjusted by adjusting the longitudinal position of the twisting clamp 2, so as to adjust the length of the twisted part of the flat pipe along the longitudinal direction, thereby being suitable for different requirements. Here, "position adjustable" means that the twisting jig 2 is movable on the base 4 in the longitudinal direction so as to adjust the distance between the twisting jig 2 and the positioning jig 1, and after the distance between the twisting jig 2 and the positioning jig 1 is determined, the twisting jig 2 can be positioned at the corresponding position of the base 4.

further, the first twisting jig 201 is connected with the first driver 31 and the first driver 31 is adjustable in longitudinal position together with the first twisting jig 201, and/or the second twisting jig 202 is connected with the second driver 32 and the second driver 32 is adjustable in longitudinal position together with the second twisting jig 202.

Still further, the first twisting jig 201 may be directly mounted on the first driver 31, and the second twisting jig 202 may be directly mounted on the second driver 32. As shown in fig. 1, the first twisting jig 201 is installed at the right end of the first driver 31, the second twisting jig 202 is installed at the left end of the second driver 32, and only the first twisting jig 201 and the first driver 31 may be together position-adjustable in the left-right direction, only the second twisting jig 202 and the second driver 32 may be together position-adjustable in the left-right direction, further the first twisting jig 201 and the first driver 31 may be together position-adjustable in the left-right direction, and the second twisting jig 202 and the second driver 32 may be together position-adjustable in the left-right direction, so that the first twisting jig 201 and/or the second twisting jig 202 can approach and depart from the positioning jig 1. In this embodiment, the first twisting jig 201 and the first driver 31 are adjustable in position in the left-right direction, and the second twisting jig 202 and the second driver 32 are adjustable in position in the left-right direction, so that the lengths of the twisted pipe sections on the left and right sides of the flat pipe 100 in the longitudinal direction can be adjusted. Specifically, after the distance between the twisting jig 2 and the positioning jig 1 is determined, the driver 3 may be fixed to the base 4 by using bolts and nuts as fasteners.

Further, the base plate 6 is arranged on the base 4, the base plate 6 comprises a first base plate 61 and a second base plate 62 which are arranged at intervals along the longitudinal direction, the first base plate 61 and the second base plate 62 are both adjustable along the longitudinal direction, the positioning fixture 1 is arranged between the first base plate 61 and the second base plate 62, the first driver 31 is arranged on the upper surface of the first base plate 61, and the second driver 32 is arranged on the upper surface of the second base plate 62.

In some embodiments, as shown in fig. 4, the positioning jigs 1 are arranged in a plurality of groups at intervals in the transverse direction (the front-back direction shown in fig. 4), at least two positioning jigs 1 are arranged at intervals in each group in the longitudinal direction, the twisting jig 2 includes a plurality of first twisting jigs 201 arranged at intervals in the transverse direction, and the plurality of first twisting jigs 201 correspond to the plurality of groups of positioning jigs 1 one to one, that is, each group of positioning jigs 1 corresponds to one first twisting jig 201. In other words, a plurality of sets of positioning fixtures 1 are disposed on the base 4, the plurality of sets of positioning fixtures 1 are arranged at intervals in the transverse direction, the twisting fixture 2 includes a plurality of first twisting fixtures 201 arranged at intervals in the transverse direction, the plurality of first twisting fixtures 201 arranged at intervals in the transverse direction are a set, and the plurality of first twisting fixtures 201 in the set correspond to the plurality of sets of positioning fixtures 1 one to one, that is, each set of positioning fixtures 1 corresponds to one first twisting fixture 201. It can be understood that, by arranging the plurality of sets of positioning fixtures 1 and the plurality of first twisting fixtures 201, twisting of the plurality of flat tubes 100 can be completed, and the production efficiency is improved. Specifically, each set of positioning jigs 1 has 3 positioning jigs 1, and the 3 positioning jigs 1 are arranged at intervals in the longitudinal direction and are a first positioning jig 101, a second positioning jig 102, and a third positioning jig 103 in this order. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Further, the twisting jig 2 further includes a plurality of second twisting jigs 201 corresponding to the plurality of sets of positioning jigs 1 one-to-one and arranged along the transverse direction at intervals, that is, each set of positioning jig 1 corresponds to one second twisting jig 202, and each set of positioning jig 1 is arranged between the first twisting jig 201 and the second twisting jig 202 corresponding to the set of positioning jig 1 along the longitudinal direction.

In some embodiments, the flat pipe twisting apparatus further includes a linkage assembly 5, the linkage assembly 5 includes a first linkage assembly 501, the first linkage assembly 501 is connected to the plurality of first twisting clamps 201 and is capable of linkage-moving the plurality of first twisting clamps 201 arranged at intervals in the transverse direction, the driver 3 includes a first driver 31, and the first driver 31 drives the plurality of first twisting clamps 201 together through the first linkage assembly 501. In other words, under the action of the first linkage assembly 501, one first driver 31 can enable a plurality of first twisting clamps 201 to simultaneously rotate to twist a plurality of flat tubes 100.

further, the linkage assembly 5 further includes a second linkage assembly 502, the second linkage assembly 502 is connected to the plurality of second twisting clamps 202 and is capable of linking the plurality of second twisting clamps 202 arranged at intervals in the transverse direction, and the driver 3 includes a second driver 32, and the second driver 32 drives the plurality of second twisting clamps 202 together through the second linkage assembly 502. In other words, under the action of second coupling assembly 502, one second driver 32 can simultaneously rotate a plurality of second twisting clamps 202 to twist flat tubes 100. Specifically, as shown in fig. 4, a plurality of first twisting jigs 201 are provided on the left side of the base 1, a plurality of second twisting jigs 202 are provided on the right side of the base 1, and the plurality of first twisting jigs 201 can be simultaneously rotated to simultaneously twist the left end sides of the plurality of flat tubes 100 by a first linking assembly 501; with the second linkage assembly 502, the plurality of second twisting clamps 202 can be simultaneously rotated to simultaneously twist the right end sides of the plurality of flat tubes 100.

In other words, the first twisting jig 201 and the second twisting jig 202 are arranged in plurality at intervals in the transverse direction, a set of positioning jigs 1 is arranged between each first twisting jig 201 and each second twisting jig 202 which are arranged at intervals in the longitudinal direction, each set of positioning jigs 1 includes a first positioning jig 101, a second positioning jig 102 and a third positioning jig 103 which are arranged at intervals in the longitudinal direction, each first positioning jig 101, each second positioning jig 102 and each third positioning jig 103 are arranged in plurality at intervals in the transverse direction, the plurality of first positioning jigs 101 which are arranged at intervals in the transverse direction form a first set of positioning jigs 1, the plurality of second positioning jigs 102 which are arranged at intervals in the transverse direction form a second set of positioning jigs 1, the plurality of third positioning jigs 103 which are arranged at intervals in the transverse direction form a third set of positioning jigs 1, the plurality of first twisting jigs 201 and the plurality of second twisting jigs 202 are arranged at intervals in the transverse direction, and each first twisting jig 201 corresponds to one first positioning jig 101, one second, A second positioning jig 102, a third positioning jig 103 and a second twisting jig 202.

further, the first positioning jig 101 and the third positioning jig 103 are both adjustable in position along the longitudinal direction, and the second positioning jig 102 is not adjustable in position, that is, the second positioning jig 102 is fixedly connected to the upper surface of the base 4. It will be appreciated that by providing positioning clamp 1 adjacent to first twisting clamp 201 and positioning clamp 1 adjacent to second twisting clamp 201 to be adjustable in longitudinal position, it is further facilitated to adjust the distance between first twisting clamp 201 and first positioning clamp 101 and between second twisting clamp 202 and third positioning clamp 103, thereby facilitating determination of the longitudinal length of the respective twisted pipe sections at the two ends of flat pipe 100. It is understood that, after the distance between the twisting jig 2 and the positioning jig 1 is adjusted, the first positioning jig 101 and the third positioning jig 103 can be positioned at the corresponding positions of the base 4, and specifically, the first positioning jig 101 and the third positioning jig 103 can be fixed to the base 4 by using bolts and nuts as fasteners.

In some embodiments, as shown in fig. 4 to 6, each of the first linkage assembly 501 and the second linkage assembly 502 includes a first rod 51 connected to the driver 3 and a plurality of second rods 52 connected to the first rod 51, each of the first rods is connected to one of the twisting clamps 2, the driver 3 drives the first rods 51 to perform a partial circular motion in a plane perpendicular to the longitudinal direction so as to drive the plurality of second rods 52 to rotate synchronously, and the second rods 52 drive the rotating shafts 21 to rotate synchronously, so that the plurality of rotating shafts 21 arranged at intervals in the transverse direction rotate synchronously, thereby enabling simultaneous twisting of the plurality of flat tubes 100 by the linkage assembly 5, and further improving the production efficiency. Fig. 5 shows a structural view of an initial state of the linkage assembly 5 in which the second lever 52 is in a vertical state, and fig. 6 shows a structural view of the linkage assembly 5 after actuation in which the second lever 52 is angularly deflected from the vertical state.

A flat tube twisting apparatus according to an embodiment of the present invention will be described with reference to fig. 1 to 3 and fig. 7 to 11.

As shown in fig. 1 to 3 and fig. 7 to 11, the flat tube twisting apparatus according to the embodiment of the present invention includes a base 4 extending in a left-right direction, and a first driver 31, a first twisting jig 201, a first positioning jig 101, a second positioning jig 102, a third positioning jig 103, a second twisting jig 202, and a second driver 32 are sequentially disposed on an upper surface of the base 4 from left to right, where the first twisting jig 201 is mounted at a right end of the first driver 31, the second twisting jig 202 is mounted at a left end of the second driver 32, and the first twisting jig 201, the first positioning jig 101, the second positioning jig 102, and the third positioning jig 103 are sequentially disposed from left to right at intervals.

Be equipped with on base 4 along longitudinally extending's first logical groove and second logical groove, first logical groove and second logical groove set up along longitudinal separation, the bottom surface of first positioning fixture 101 is equipped with the guide, this guide can move in first logical groove, so that longitudinal position can be followed to first positioning fixture 101 adjustable, the bottom surface of third positioning fixture 103 is equipped with the guide, this guide can move in the second logical groove, so that longitudinal position is adjustable can be followed to third positioning fixture 103, and first positioning fixture 101 and third positioning fixture 103 can be fastened on base 4 through the fastener respectively, the fastener is for example screw bolt and nut. The second positioning jig 102 is fixedly attached to the base 4.

The first driver 31 is mounted on the upper surface of the first substrate 61, the second driver 32 is mounted on the upper surface of the second substrate 62, the base 4 is provided with a third through groove and a fourth through groove extending longitudinally, the third through groove and the fourth through groove are arranged at intervals longitudinally, and the first through groove and the second through groove are located between the third through groove and the fourth through groove, namely, the third through groove, the first through groove, the second through groove and the fourth through groove are arranged at intervals in sequence from left to right, the bottom surface of the first substrate 61 is provided with a guide member which can move in the third through groove, so that the first driver 31 and the first twisting clamp 201 can be adjusted along the longitudinal position together, and the bottom surface of the second substrate 62 is provided with a guide member which can move in the fourth through groove, so that the second driver 32 and the second twisting clamp 202 can be adjusted along the longitudinal position together. Further, the first base 61 and the second base 62 can be fastened to the base 4 by fasteners such as bolts and nuts, respectively.

First driver 31 and second driver 32 are the motors, and first twist clamp 201 includes first pivot, and first pivot is installed at the right-hand member of first driver 31, and the right-hand member of first pivot has the first slot 32 that is used for joining the left end of flat pipe 100, and second twist clamp 202 includes the second pivot, and the left end at second driver 32 is installed to the second pivot, and the left end of second pivot has the first slot 32 that is used for joining the right end of flat pipe 100.

As shown in fig. 7 to 11, it can be understood that, by the flat tube twisting apparatus described above, twisting of both end sides of flat tube 100 can be simultaneously performed, a tube segment clamped between a left end of flat tube 100 in first twisting jig 201 and a first clamping portion of flat tube 100 fixed in first positioning jig 101 can be twisted to form first twisted section 111, a tube segment clamped between a right end of flat tube 100 in second twisting jig 202 and a second clamping portion of flat tube 100 fixed in third positioning jig 103 can be twisted to form second twisted section 113, such that twisted flat tube 100 includes first end section 110, first twisted section 111, main body section 112, second twisted section 113, and second end section 114, where first twisted section 111 connects first end section 110 and main body section 112, second twisted section 113 connects second end section 114 and main body section 112, first end section 110 is formed by an end portion of flat tube 100 clamped in first twisting jig 201, second end section 114 is formed by the end of flat tube 100 clamped in second torsion clamp 202, the first clamping portion of flat tube 100 fixed by first positioning clamp 101 is the left end of main body section 112, the second positioning clamp 102 fixes the approximate middle position of main body section 112, and the second clamping portion of flat tube 100 fixed by the third positioning clamp is the right end of main body section 112.

The flat tube 100 shown in fig. 7 to 9 is a twisted flat tube formed by twisting the first twisted clamp 201 and the second twisted clamp 202 in different rotation directions, and the flat tube 100 shown in fig. 11 is a twisted flat tube formed by twisting the first twisted clamp 201 and the second twisted clamp 202 in the same rotation direction. As shown in fig. 8-10, the first twisted section 111 formed by twisting makes an angle α formed between a plane S1 defined by the length direction (left-right direction shown in fig. 7) and the width direction of the main body section 112 and a plane S2 defined by the length direction and the width direction of the first end section 110, and the optimal preferred range of the angle α is: alpha is more than or equal to 15 degrees and less than 40 degrees. Similarly, the second twisted section 113 formed by twisting is such that the angle formed between the main section 112 and the second end section 110 is the same as the recommended range of α described above (15 ≦ α < 40 °).

A flat tube twisting apparatus according to another embodiment of the present invention will be described with reference to fig. 4 to 10.

As shown in fig. 4 to 10, the flat tube twisting apparatus according to the embodiment of the present invention includes a base 4, a first linkage assembly 501, and a second linkage assembly 502, where the base 4 extends in a left-right direction, and an upper surface of the base 4 is sequentially and alternately provided with a first base plate 61, a first positioning clamp 101, a second positioning clamp 102, a third positioning clamp 103, and a second base plate from left to right, the first base plate 61 is provided with a first twisting clamp 201, and the second base plate 62 is provided with a second twisting clamp 202, where four first twisting clamps 201, four first positioning clamps 101, four second positioning clamps 102, four third positioning clamps 103, and four second twisting clamps 202 are uniformly and alternately provided in a front-back direction.

Each of the first linkage assembly 501 and the second linkage assembly 502 includes a first rod 51 and four second rods 52 arranged at intervals in the transverse direction, each of the four second rods 52 is connected with the first rod 51, the first rod 51 of the first linkage assembly 501 is connected with the first driver 31, the first rod 51 of the second linkage assembly 502 is connected with the second driver 32, each of the second rods 52 of the first linkage assembly 501 is connected with one first twisting tool 201, and each of the second rods 52 of the second linkage assembly 502 is connected with one second twisting tool 202. Under the action of the first driver 31, four first torsion clamps 201 arranged at intervals in the transverse direction are driven to rotate simultaneously through a first linkage assembly 501; under the action of the second driver 32, four second torsion clamps 202 arranged at intervals in the transverse direction are simultaneously driven to rotate by the second linkage assembly 502.

The first twisting jig 201 includes a first rotation shaft having a left end connected to the second bar 52 of the first linkage assembly 501 and a right end having a first insertion groove 32 for engaging the left end of the flat tube 100, and the second twisting jig 202 includes a second rotation shaft having a right end connected to the second bar 52 of the second linkage assembly 502 and a left end having a first insertion groove 32 for engaging the right end of the flat tube 100.

The other structures and operations of the flat tube twisting device shown in fig. 2 may be the same as those of the embodiment shown in fig. 1, and will not be described in detail here. It can be understood that the twisting of the two end sides of the 4 flat tubes 100 can be simultaneously completed by the flat tube twisting device, so that the production efficiency is improved.

in the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.