CN212551389U - Automatic processing device and processing device for pipe expansion of coil pipe - Google Patents
Automatic processing device and processing device for pipe expansion of coil pipe Download PDFInfo
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- CN212551389U CN212551389U CN202021695219.5U CN202021695219U CN212551389U CN 212551389 U CN212551389 U CN 212551389U CN 202021695219 U CN202021695219 U CN 202021695219U CN 212551389 U CN212551389 U CN 212551389U
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Abstract
The utility model discloses an automatic processingequipment and be used for processingequipment of coil pipe expand tube. The automatic processing device of the utility model comprises a plurality of motion mechanisms, a die for processing the workpiece and a position identification mechanism; the plurality of motion mechanisms at least comprise a first motion mechanism for positioning the axial position of a workpiece to be processed, a second motion mechanism for positioning the transverse position of the die and a third motion mechanism for positioning the radial position of the die, wherein the first motion mechanism is provided with a carrying mechanism for placing the workpiece to be processed, and the die is fixed on the third motion mechanism; position identification mechanism is including being used for waiting to process the first identification mechanism of work piece axial initial position discernment and being used for waiting to process the second identification mechanism of the horizontal initial position discernment of work piece, the utility model discloses an automatic processing device can accomplish automatically and carry out automatic expand tube to the copper pipe that the coil pipe of evaporative cooling water chilling unit used.
Description
Technical Field
The utility model relates to a processing equipment, in particular to automatic processing device.
Background
As shown in fig. 1, in an evaporative cooling type chiller, a condensing coil is used to exchange heat to cool a refrigerant in a chiller system, and in order to improve the heat exchange effect, the contact area and the contact time between the refrigerant and cooling water are increased. The coil adopts a reciprocating design, which can enable the refrigerant to achieve the maximum circulation distance in a limited space, thereby increasing the contact time and the contact area with cooling water to achieve the maximum heat exchange effect, and the effect is shown in figure 1.
The heat exchange coil pipe is produced by cutting copper pipes with equal length, and then the U-shaped sleeve pipe 1a is used for connecting each independent copper pipe into a whole, the connection of the copper pipes is mainly completed by welding, because the U-shaped sleeve pipe 1a and the copper pipe 1b are equal-diameter copper pipes, as shown in a (a) diagram in fig. 2, due to the influence of processing technology, the certain size error exists in the mutual interface of the copper pipe 1b and the U-shaped sleeve pipe 1a, and the condition that the interfaces on two sides cannot be aligned can be welded in a butt joint mode. In order to perform the butt welding stably, the copper pipe needs to be processed, and the original point-to-point butt joint is changed into the existing insertion type butt joint fixing as shown in (b) of fig. 2.
The traditional process for processing the copper pipes of the coil pipes is to adopt a conical die 4 to manually expand the opening pipe diameters of the copper pipes one by one, and as each group of the heat exchange coil pipes is provided with hundreds of copper pipes to be subjected to hole expansion processing, as shown in figure 3, the work efficiency of users is low, and the pipe diameters of the expanded holes are completely controlled through the experience of operators, so that the quality of the expanded holes of the coil pipes is difficult to control.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to solve the problem of the prior art, the utility model provides an automatic processing device realizes utilizing the device to realize automatic expand tube.
The technical scheme is as follows: the utility model relates to an automatic processing device, which comprises a plurality of motion mechanisms, a die for processing workpieces and a position identification mechanism; the plurality of motion mechanisms at least comprise a first motion mechanism for positioning the axial position of a workpiece to be processed, a second motion mechanism for positioning the transverse position of the die and a third motion mechanism for positioning the radial position of the die, wherein the first motion mechanism is provided with a carrying mechanism for placing the workpiece to be processed, and the die is fixed on the third motion mechanism; the position recognition mechanism comprises a first recognition mechanism used for recognizing the axial initial position of the workpiece to be machined and a second recognition mechanism used for recognizing the transverse initial position of the workpiece to be machined.
The first identification mechanism comprises a first photoelectric switch and a second photoelectric switch; the second identification mechanism includes a third photoelectric switch and a fourth photoelectric switch.
The first movement mechanism comprises a first motor, a first lead screw connected with the first motor, and first sliding guide assemblies arranged on two sides of the first lead screw and arranged in parallel with the first lead screw, and the carrying mechanism is arranged above the first sliding guide assemblies.
The second motion mechanism comprises a second motor, a second screw rod connected with the second motor, and a first bracket driven by the second screw rod, and the third motion mechanism is arranged on the first bracket.
The third movement mechanism comprises a third motor, and the die is mounted at the output end of the third motor.
The utility model relates to a processing device for coil pipe expansion, which comprises a plurality of motion mechanisms, a die for stamping a coil pipe and a position identification mechanism; the plurality of motion mechanisms at least comprise a first motion mechanism for positioning the axial position of the coil pipe to be processed, a second motion mechanism for positioning the transverse position of the mold and a third motion mechanism for positioning the radial position of the mold, wherein the first motion mechanism is provided with a carrying mechanism for placing the coil pipe to be processed, and the mold is fixed on the third motion mechanism; the position recognition mechanism comprises a first recognition mechanism used for recognizing the axial initial position of the workpiece to be machined and a second recognition mechanism used for recognizing the transverse initial position of the workpiece to be machined.
The diameter of the die is larger than that of the single pipe of the coil pipe, and the lower end of the die is provided with an inverted conical surface.
The method for automatically expanding the coil by utilizing the processing device comprises the following steps:
(a) the coil pipe to be machined is fixed on the carrying mechanism, the first movement mechanism moves the coil pipe to be machined to the starting point of the working position after the coil pipe to be machined is started, and the initial axial position of the coil pipe to be machined is identified through the first identification mechanism;
(b) the second motion mechanism moves a third motion mechanism fixed with the mold to an initial transverse position, and the transverse initial position is identified through a second identification mechanism;
(c) setting a radial moving stroke of a third moving mechanism, performing pipe expanding action according to a running distance set by the third moving mechanism, completing pipe expansion after a die punches a single pipe of the coil pipe, and then resetting the die to complete single pipe expansion;
(d) the first moving mechanism moves the carrying mechanism to the position of the next coil pipe single pipe, and the pipe expanding action is repeated until the whole row of copper pipes is completely expanded;
(e) and positioning the third movement mechanism fixed with the die to the starting position of the single pipe of the second row of coil pipes by the second movement mechanism, and repeating the positioning until the pipe expansion work of all the copper pipes is completed.
Has the advantages that: (1) the utility model realizes the three-dimensional processing of the automatic processing device through the three-dimensional motion mechanism; (2) the utility model realizes the position recognition of the processing workpiece by the recognition mechanism during processing, thereby realizing accurate processing; (3) the utility model discloses an inefficiency in the coil pipe processing has been solved to this automatic processing device, and the problem that the expand tube quality can't be guaranteed has realized the accurate control of coil pipe processing.
Drawings
FIG. 1 is a schematic view of a coil arrangement;
FIG. 2 is a schematic view of a process flow of a copper pipe and a U-shaped joint of a coil pipe;
FIG. 3 is a schematic flow chart of expanding a copper tube in the prior art;
FIG. 4 is a schematic structural view of the automatic processing device of the present invention;
FIG. 5 is a schematic structural view of the automatic processing device of the present invention;
fig. 6 is a schematic view of the processing flow of the middle coil pipe of the present invention.
Detailed Description
Example 1: as shown in fig. 4, the automatic processing device of the present invention includes a plurality of moving mechanisms, a mold for processing a workpiece, and a position recognition mechanism; the plurality of motion mechanisms at least comprise a first motion mechanism 1 for positioning the axial position of a workpiece to be processed, a second motion mechanism 2 for positioning the transverse position of the die and a third motion mechanism 3 for positioning the radial position of the die, wherein the axial direction in the embodiment is the east-west direction in fig. 4, the transverse direction is the north-south direction in fig. 4, and the radial direction is the up-down direction in fig. 4.
The first moving mechanism 1 is provided with a carrying mechanism 101 for placing a workpiece to be processed, the first moving mechanism 1 includes a first motor 102, a first lead screw 103 connected to the first motor 102, and first sliding guide assemblies 104 arranged on two sides of the first lead screw 103 and parallel to the first lead screw 103, the carrying mechanism 101 is arranged above the first sliding guide assemblies 104, the structure is the same as the axial track moving device in chinese patent 2019208380577, the carrying mechanism 101 is a coil bracket in this embodiment, the first motor 102 drives the first lead screw 103 to rotate, the first lead screw 103 drives the carrying mechanism 101 arranged above to move, the first sliding guide assemblies 104 on two sides are two guide rails, and serve as a guide mechanism of the carrying mechanism 101, and fix the moving direction of the carrying mechanism 101.
The second moving mechanism 2 is erected above the first moving mechanism 1 through the first bracket 6, and the second moving mechanism 2 includes a second motor 201, a second lead screw 202 connected with the second motor 201, and a first bracket 203 driven by the second lead screw 202. The third moving mechanism 3 is mounted on the first bracket 203, the third moving mechanism 3 includes a third motor 301, and the mold 4 is fixed to an output end of the third motor 301 of the third moving mechanism 3.
As shown in fig. 5, the present invention realizes the initial positioning of the workpiece to be processed by the position recognition mechanism 5, including a first recognition mechanism 501 for recognizing the axial initial position of the workpiece to be processed and a second recognition mechanism 502 for recognizing the transverse initial position of the workpiece to be processed, where the first recognition mechanism 501 includes a first photoelectric switch 501a and a second photoelectric switch 501 b; the second recognition mechanism 502 includes a third photoelectric switch 502a and a fourth photoelectric switch 502 b.
When the automatic processing device is used for expanding the coil, the diameter of the die 4 for processing the coil is slightly larger than that of the single pipe of the coil, and the lower end of the die is provided with an inverted conical surface which can be an inverted round table surface in the embodiment.
The working method comprises the following steps:
(a) the coil pipe 7 to be machined is fixed on the carrying mechanism 101, the first movement mechanism 1 moves the coil pipe to be machined to the starting point of the working position after the coil pipe is started, and the initial axial position of the coil pipe to be machined is identified through the first identification mechanism 501;
(b) the second movement mechanism 2 moves the third movement mechanism 3 fixed with the mold to an initial transverse position, and the transverse initial position is identified by the second identification mechanism 502;
(c) setting a radial moving stroke of the third moving mechanism 3, performing pipe expanding action through a running distance set by the third moving mechanism 3, completing pipe expansion after a die punches a single pipe of the coil pipe, and then resetting the die to complete single pipe expansion;
(d) the first movement mechanism 1 operates to move the carrying mechanism 101 to the position of the next coil pipe single pipe, and the pipe expanding action is repeated until the whole row of copper pipes is completely expanded;
(e) and then the third moving mechanism 3 fixed with the die is positioned to the starting position of the single pipe of the second row of coil pipes by the second moving mechanism 2, and the process is repeated until the pipe expanding work of all the copper pipes is completed.
The process treatment of the pipe expanding can be automatically carried out on the copper pipe through automatic processing equipment, the precision of the pipe expanding is improved, errors and loss caused by human factors are reduced, the production efficiency is improved, the whole pipe expanding process is automatically carried out, and the labor cost is reduced.
Example 2: as an alternative, in the embodiment, which provides an automatic coil pipe expanding method, the first motor 102, the second motor 201, and the third motor 301 may be servo motors or stepper motors.
As shown in fig. 6, a special die 4 for copper pipe expansion is designed, a servo motor is used for operating an operating mechanism to realize automatic positioning of copper pipe hole sites, and the servo motor is used for controlling the pipe expansion die to perform pipe expansion processing on copper pipes.
When the coil pipe is automatically expanded, the following factors need to be considered:
design of the mold 4: considering that the U-shaped sleeve 1a can be stably fixed at the end of the copper tube 1b, the diameter of the die 4 for expanding the tube should be slightly larger than the outer diameter of the U-shaped sleeve 1a, and the excessively large diameter may cause the U-shaped sleeve 1a to be misaligned with the center of the copper tube 1b during the welding process, so that the subsequent processing cannot be performed. The front end of the die 4 adopts a conical (or inverted truncated cone) design, so that the resistance can be effectively reduced in the tube expanding process, and the expanded opening is smoother and less prone to irregular deformation by matching with the rotation of the die.
A tube expansion mode: one end of the copper pipe 1b is subjected to pipe expansion by pressing with a die. One end of the copper pipe is punched through a die so that the copper pipe is expanded and shaped. In order to prevent the copper pipe from deforming due to the stamping and pipe expanding, the stamping die is fixed on the rotating speed regulating motor, and the copper pipe is expanded by pushing the rotating die. The stamping distance of the die 4 is just suitable for sinking by 5mm according to the test, and the joint of the U-shaped sleeve 1a is just inserted to the sinking depth without loosening, so that the subsequent processing requirements can be met.
In this embodiment, the tube expansion track is schematically shown in fig. 6, fig. 6 is a top view of a copper tube array constituting a coil, an arrow is a motion track of a die 4 for tube expansion, and a motion control system of the whole apparatus is mainly divided into an upper part and a lower part:
the lower half part is a main shaft moving shaft in the east-west direction and is controlled by the first movement mechanism 1, and the main shaft moving in the east-west direction is used for conveying a coil pipe bracket serving as the first carrying mechanism 101 to move the coil pipe bracket from a workpiece placing position to a pipe expansion starting position.
The upper part is a south-north and up-down direction moving device of the expanding hole die, wherein a south-north direction shaft is responsible for longitudinal channel changing and positioning of a copper pipe, a second moving mechanism 2 is responsible for the south-north direction shaft, an up-down direction shaft is responsible for up-down movement of the expanding tube die to perform tube expanding action, a third moving mechanism 3 is responsible for the up-down direction shaft, and the whole equipment forms a three-axis moving system through an upper part and a lower part.
Preparation work before the automatic pipe expanding machine set is started: the coil pipe assembly with the copper pipes is placed on a special support (a coil pipe bracket) to be locked and fixed, the distances among the copper pipes on the coil pipe assembly are the same in height, whether the copper pipes are arranged according to requirements or not is checked, the positioning time of a moving system is shortened, and the positioning precision is improved.
Automatic starting point positioning control system: after the coil pipe assembly is placed at the designated position, the system starts to position the initial point, and the initial position of the coil pipe assembly is detected and determined by the photoelectric sensor 501a and the photoelectric sensor 501b which are arranged in the east-west direction of the unit: after the positioning is started, the east-west first motor 102 moves from the east-west direction and stops when the coil assembly touches the east-west photoelectric position sensor. The second motor 201 of the north-south axis moves from north to south and stops when the north-south electro-optical position sensors 502a and 502b detect the coil assembly. And after the east-west axial direction and the north-south axial direction are positioned, the axial direction is the starting point O, after the starting point is positioned, the up-down axial direction starts to move to the starting action original point of the expansion pipe according to the parameters set by the system, and after the three axial directions all move to the starting positions, the system automatically starts to position.
After the device is started, the east-west spindle stepping motor 101 moves the coil pipe 7 to be processed to a working position starting point (above a first copper pipe row on the west side of the coil pipe assembly), the second motor 201 positions the die 4 of the expanding pipe to the top of a first copper pipe (starting position O), the third motor 301 moves downwards for a preset running distance of a system to perform the expanding pipe action, the third motor 301 resets up and down after the expanding pipe is completed, the first motor 102 of the east-west direction shaft moves the coil pipe bracket to the next copper pipe position, the expanding pipe action of the up-down direction shaft is repeated until the expanding pipe of a whole row of copper pipes is completed, the second motor 201 positions the die 4 of the expanding pipe to the starting position of the second copper pipe row, and the expanding pipe operation of all the copper pipes is repeated until the expanding pipe is completed. After all the working procedures are finished, the first motor 102 moves the whole coil bracket out of the tube expansion processing area to finish the current tube expansion action.
Claims (7)
1. An automatic processing device is characterized by comprising a plurality of motion mechanisms, a die for processing a workpiece and a position identification mechanism; the plurality of motion mechanisms at least comprise a first motion mechanism (1) for positioning the axial position of a workpiece to be processed, a second motion mechanism (2) for positioning the transverse position of the die and a third motion mechanism (3) for positioning the radial position of the die, wherein the first motion mechanism (1) is provided with a carrying mechanism (101) for placing the workpiece to be processed, and the die (4) is fixed on the third motion mechanism (3); the position recognition mechanism (5) comprises a first recognition mechanism (501) used for recognizing the axial initial position of the workpiece to be machined and a second recognition mechanism (502) used for recognizing the transverse initial position of the workpiece to be machined.
2. The automatic processing device according to claim 1, wherein the first recognition mechanism (501) comprises a first photoelectric switch and a second photoelectric switch; the second identification mechanism (502) includes a third opto-electronic switch and a fourth opto-electronic switch.
3. The automatic processing device according to claim 1, wherein the first moving mechanism (1) comprises a first motor (102), a first lead screw (103) connected with the first motor (102), a first sliding guide assembly (104) arranged on two sides of the first lead screw and parallel to the first lead screw, and the carrying mechanism (101) is arranged above the first sliding guide assembly (104).
4. The automatic processing device according to claim 1, wherein the second moving mechanism (2) comprises a second motor (201), a second screw (202) connected with the second motor (201), a first bracket (203) driven by the second screw (202), and the third moving mechanism (3) is mounted on the first bracket (203).
5. The automatic processing device according to claim 1, characterized in that said third kinematic mechanism (3) comprises a third motor (301), said mold (4) being mounted at the output of said third motor (301).
6. A processing device for expanding a coil pipe is characterized by comprising a plurality of moving mechanisms, a die for stamping the coil pipe and a position identification mechanism; the plurality of motion mechanisms at least comprise a first motion mechanism (1) for positioning the axial position of the coil to be machined, a second motion mechanism (2) for positioning the transverse position of the mold and a third motion mechanism (3) for positioning the radial position of the mold, wherein the first motion mechanism (1) is provided with a carrying mechanism (101) for placing the coil to be machined, and the mold (4) is fixed on the third motion mechanism (3); the position recognition mechanism (5) comprises a first recognition mechanism (501) used for recognizing the axial initial position of the workpiece to be machined and a second recognition mechanism (502) used for recognizing the transverse initial position of the workpiece to be machined.
7. The processing device for pipe expansion of the coil pipe as claimed in claim 6, wherein the diameter of the die is larger than that of the single pipe of the coil pipe, and the lower end of the die is provided with an inverted conical surface.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021695219.5U CN212551389U (en) | 2020-08-14 | 2020-08-14 | Automatic processing device and processing device for pipe expansion of coil pipe |
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| CN202021695219.5U CN212551389U (en) | 2020-08-14 | 2020-08-14 | Automatic processing device and processing device for pipe expansion of coil pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889575A (en) * | 2020-08-14 | 2020-11-06 | 南京恒标斯瑞冷冻机械制造有限公司 | Automatic processing device and pipe expanding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111889575A (en) * | 2020-08-14 | 2020-11-06 | 南京恒标斯瑞冷冻机械制造有限公司 | Automatic processing device and pipe expanding method |
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