Forming device for refrigerator side wall condenser pipe

Abstract

The utility model provides a forming device for a refrigerator side wall condenser pipe. The forming device comprises a fixing plate. The fixed plate is fixed on the rack, two parallel X-axis guide rails are arranged on the fixed plate, a feeding device is arranged on the X-axis guide rails, and a bending mechanism and two groups of cutting mechanisms are arranged on the fixed plate between the two X-axis guide rails; the two sets of cutting mechanisms abut against the two ends of one X-axis guide rail correspondingly. Each cutting mechanism comprises a cutting device and a clamping device. The feeding device is driven by the two vertical lead screw mechanisms to move on the fixing plate along the shape of the condenser pipe, the shape of the condenser pipe is formed through the pipe bending die arranged at each bending position of the condenser pipe, full-automatic continuous machining of the condenser pipe is achieved, the condenser pipe is shaped after being bent through the pushing device, and the machining efficiency of the condenser pipe is improved. The condenser pipe can be formed in one step, and the machining efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a forming device for the side condenser tube of a refrigerator. Background Technology

[0002] The condenser is a key component of refrigerator refrigeration. The condenser tubes, as the main part of the condenser, are typically made of metal materials with high thermal conductivity and good ductility. Depending on the product requirements, the metal tubes are bent into different shapes, with specific requirements for angles and dimensions. Traditional refrigerator condenser tubes, due to their large overall size and complex structure, are usually bent manually, which requires a high level of experience and physical strength from workers and is a tedious process. Therefore, an automated forming device is needed to replace manual bending. For example, CN116833323A discloses an automatic condenser tube clamping and feeding device that achieves automatic clamping and feeding of condenser tubes through a feeding module and a bending module, reducing operating costs, improving condenser tube feeding efficiency, and overcoming the problem of condenser tubes piling up and not being able to be fed one by one. However, it can only feed condenser tube material that has already been cut and cannot adjust the feeding speed. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a forming device for the side condenser tube of a refrigerator.

[0004] This utility model is achieved through the following technical solution.

[0005] This utility model provides a forming device for refrigerator side condenser tubes, including a fixing plate; the fixing plate is fixed on a frame, and the fixing plate is provided with two parallel X-axis guide rails, a feeding device is installed on the X-axis guide rails, and a bending mechanism and two sets of cutting mechanisms are installed on the fixing plate between the two X-axis guide rails; the two sets of cutting mechanisms are respectively close to both ends of one of the X-axis guide rails, and the cutting mechanism includes a cutting device and a clamping device;

[0006] The bending mechanism includes several rotatable bending dies and fixed bending dies. The rotatable bending dies shape the heat exchange section of the condenser tube, and the fixed bending dies shape the transition connection section of the condenser tube. The fixed bending dies are installed in the middle of the fixed plate and are adjacent to another X-axis guide rail. The rotatable bending dies are distributed at both ends of the several fixed bending dies.

[0007] There are six fixed pipe bending dies, of which the center of the line connecting four fixed pipe bending dies and two fixed pipe bending dies is on the same straight line and is parallel to the X-axis guide rail respectively, and two fixed pipe bending dies are installed on the first pressing device.

[0008] The first pressing device includes a mold connecting plate A, two fixed bending pipe molds are respectively installed at both ends of the mold connecting plate A, the mold connecting plate A is installed on a guide plate, the guide plate is installed on a guide rail, the guide rail is installed on a base plate, the base plate is suspended at the bottom of the fixed plate, a servo motor is installed at the end of the base plate and connected to the guide plate, the push rod of the servo motor is perpendicular to the mold connecting plate A, and a square guide hole is machined on the fixed plate, and the two fixed bending pipe molds respectively contact the two side walls of the square guide hole.

[0009] Two of the several rotatable tube bending dies are independently located at both ends of the fixed plate. The line connecting the two independent rotatable tube bending dies and their adjacent cutting devices is perpendicular to the X-axis guide rail. The remaining rotatable tube bending dies are arranged in two rows on both sides of the fixed tube bending die. Both rows of rotatable tube bending dies are located at the bend of the condenser tube and the line connecting them is perpendicular to the X-axis guide rail.

[0010] Of the two rows of rotatable pipe bending dies, the rotatable pipe bending die located on one side of the cutting assembly is fixed to the fixed plate. The remaining rotatable pipe bending dies extend into the bottom of the fixed plate and are installed on the second pressing device. The pressing device includes a die connecting plate B, on which through holes with the same spacing as each row of rotatable pipe bending dies are machined for mounting the rotatable pipe bending dies. The die connecting plate B is fixed to the die moving support plate, and meshing gears are installed on the die moving support plate to cooperate with the arc toothed rail fixed to the bottom of the fixed plate. The arc toothed rail is arc-shaped, with tooth rows located on the outer wall of the arc toothed rail. Side plates extend horizontally from the bottom of both sides of the arc toothed rail to cooperate with rollers fixed to the die moving support plate.

[0011] One of the two rows of rotatable pipe bending molds adjacent to the cutting component is mounted on a movable plate. The bottom of the movable plate is connected to the push rod of the tension cylinder fixed to the bottom of the fixed plate. The pushing direction of the tension cylinder is parallel to the X-axis guide rail.

[0012] The fixing plate is also machined with arc-shaped through holes parallel to the circular arc toothed track.

[0013] The feeding device includes a Y-axis gantry on two X-axis guide rails. One end of the Y-axis gantry is mounted on a screw mechanism that is parallel to the X-axis guide rail and mounted on a fixed plate. The top of the fixed plate is equipped with a Y-axis guide rail perpendicular to the X-axis guide rail. An X-axis sliding plate is mounted on the Y-axis guide rail. The X-axis sliding plate is driven by the screw mechanism mounted on the Y-axis gantry. One end of the X-axis sliding plate extends out of the side of the support frame and is vertically mounted with a reversing mounting plate. A guide wheel is mounted on the top of the reversing mounting plate. Two rows of clamping rollers are evenly mounted on the end face of the reversing mounting plate opposite to the Y-axis gantry. The rotating shafts of the two rows of clamping rollers pass through the reversing mounting plate and are engaged with a roller servo motor mounted on the other end face of the reversing mounting plate through gears. A base plate perpendicular to the reversing mounting plate is fixed to the bottom of the end face of the reversing mounting plate where the clamping rollers are mounted. A reversing servo motor and a gear are respectively mounted on the upper and lower ends of the base plate. A reversing gear is also mounted on the base plate and meshes with the reversing servo motor.

[0014] The shaft of the reversing gear is hollow and passes through the base plate to connect with the top of 11. 11 is semi-circular, with an inner ring groove and a pulley installed.

[0015] The forming apparatus for the refrigerator side condenser tubes of this application performs the following processing steps on the condenser tubes:

[0016] S1. Move the feeding device to any clamping device and make the orientation of 11 face the clamping device.

[0017] S2. After passing the metal tube to be processed through the feeding device, fix its end in the clamping device;

[0018] S3. The lead screw mechanism drives the X-axis sliding plate and the Y-axis gantry to move according to the condenser tube structure;

[0019] S4. When the condenser tube moves to the position of the rotatable or fixed bending mold, the reversing servo motor controls the rotation of the reversing device to rotate half a turn around the rotatable or fixed bending mold through gear transmission, so that the metal tube bends around the rotatable or fixed bending mold.

[0020] S5. Finally, the metal tube is transported to another clamping device on the fixed plate and clamped, and the cutting device is driven to cut the condenser tube.

[0021] S6. Drive the first and second pressing devices to shape the metal tube and then remove it;

[0022] S7. Drive the feeding device back to step S1 and clamp the end of the metal tube, then repeat steps S3 to S6 for continuous processing.

[0023] The beneficial effects of this utility model are as follows: the feeding device is driven to move along the shape of the condenser tube on the fixed plate by two vertical lead screw mechanisms, and the shape of the condenser tube is formed by the bending mold set at each bend of the condenser tube, realizing fully automatic continuous processing of the condenser tube. Furthermore, the condenser tube is shaped after bending by the pushing device, enabling the condenser tube to be formed in one step, thus improving processing efficiency. Attached Figure Description

[0024] Figure 1 It is a structural diagram of the utility model;

[0025] Figure 2 This is a schematic diagram of the shaping mechanism structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the concave pushing mechanism of this utility model;

[0027] Figure 4 This is a schematic diagram of the pushing device structure of this utility model;

[0028] Figure 5 This is a schematic diagram comparing the structure of the condenser tube before and after the push-up of this utility model;

[0029] In the diagram: 1-Frame, 2-Fixed plate, 3-X-axis guide rail, 4-Slider, 5-X-axis motion pad, 6-Servo motor, 7-Coupling, 8-Lead screw, 9-Rotable pipe bending mold, 10-Fixed pipe bending mold, 11-Guiding device, 12-Clamping roller assembly, 13-X-axis sliding plate, 14-Y-axis gantry, 15-Y-axis guide rail, 16-Reversing mounting plate, 17-Mold base, 18-Guide wheel, 19-Rolling bearing, 20-Cutting device, 21-Clamping device 22-Reversing gear, 23-Reversing servo motor, 24-Roller servo motor, 25-Moving plate, 26-Die outer ring, 27-Stretch cylinder, 28-Servo motor, 29-Die motion support plate, 30-Circular arc gear rail, 31-Meshing gear, 32-Die connecting plate B, 33-Die connecting plate A, 34-Guide plate, 35-Guide rail, 36-Connecting block, 37-Guide wheel, 38-Base plate, 39-Servo motor, 40-Circular arc guide hole, 41-Square guide hole. Detailed Implementation

[0030] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0031] like Figure 1As shown, a forming device for a refrigerator side condenser tube includes a fixing plate 2; the fixing plate 2 is fixed on a frame 1, and two parallel X-axis guide rails 3 are provided on the fixing plate 2. A feeding device is installed on the X-axis guide rails 3, and a bending mechanism and two sets of cutting mechanisms are installed on the fixing plate 2 between the two X-axis guide rails 3; the two sets of cutting mechanisms are respectively close to both ends of one of the X-axis guide rails 3, and the cutting mechanism includes a cutting device 20 and a clamping device 21;

[0032] The bending mechanism includes several rotatable bending molds 9 and fixed bending molds 10. The rotatable bending molds 9 shape the heat exchange part of the condenser tube, and the fixed bending molds 10 shape the transition connection part of the condenser tube. The fixed bending molds 10 are installed in the middle of the fixed plate 2 and are adjacent to another X-axis guide rail 3. The rotatable bending molds 9 are distributed at both ends of the several fixed bending molds 10.

[0033] There are six fixed pipe bending molds 10, wherein the center of the line connecting four fixed pipe bending molds 10 and two fixed pipe bending molds 10 is on the same straight line and is parallel to the X-axis guide rail 3 respectively, and two fixed pipe bending molds 10 are installed on the first pressing device.

[0034] The first pushing device includes a mold connecting plate A33, two fixed bending pipe molds 10 are respectively installed at both ends of the mold connecting plate A33, the mold connecting plate A33 is installed on the guide plate 34, the guide plate 34 is installed on the guide rail 35, the guide rail 35 is installed on the base plate 38, the base plate 38 is suspended at the bottom of the fixed plate 2, and a servo motor 39 is installed at the end of the base plate 38 and connected to the guide plate 34. The push rod direction of the servo motor 39 is perpendicular to the mold connecting plate A33. A square guide hole 41 is machined on the fixed plate 2, and the two fixed bending pipe molds 10 are respectively in contact with the two side walls of the square guide hole 41.

[0035] Two of the several rotatable tube bending molds 9 are independently located at both ends of the fixed plate 2. The line connecting the two independent rotatable tube bending molds 9 and their adjacent cutting device 20 is perpendicular to the X-axis guide rail 3. The remaining rotatable tube bending molds 9 are arranged in two rows on both sides of the fixed tube bending mold 10. The two rows of rotatable tube bending molds 9 are located at the bend of the condenser tube and the line connecting them is perpendicular to the X-axis guide rail 3.

[0036] Of the two rows of rotatable pipe bending dies 9, the rotatable pipe bending die 9 located on one side of the cutting assembly is fixed to the fixed plate 2. The remaining rotatable pipe bending dies 9 extend into the bottom of the fixed plate 2 and are installed on the second pressing device. The pressing device includes a die connecting plate B32. The die connecting plate B32 has through holes with the same spacing as each row of rotatable pipe bending dies 9 for mounting the rotatable pipe bending dies 9. The die connecting plate B32 is fixed to the die moving support plate 29. The die moving support plate 29 is equipped with meshing gears 31 that cooperate with the arc toothed rail 30 fixed to the bottom of the fixed plate 2. The arc toothed rail 30 is arc-shaped, and the tooth row is located on the outer wall of the arc toothed rail 30. Side plates extend horizontally from the bottom of both sides of the arc toothed rail 30 and cooperate with the rollers fixed to the die moving support plate 29.

[0037] One of the two rows of rotatable pipe bending molds 9, which is adjacent to the cutting component, is mounted on the movable plate 25. The bottom of the movable plate 25 is connected to the push rod of the tension cylinder 27, which is fixed to the bottom of the fixed plate 2. The pushing direction of the tension cylinder 27 is parallel to the X-axis guide rail 3.

[0038] The fixing plate 2 is also machined with an arc-shaped through hole parallel to the circular arc toothed rail 30.

[0039] The feeding device includes a Y-axis gantry 14 mounted on two X-axis guide rails 3. One end of the Y-axis gantry 14 is connected to a lead screw mechanism mounted on a fixed plate 2 and parallel to the X-axis guide rails 3. A Y-axis guide rail 15 perpendicular to the X-axis guide rails 3 is mounted on the top of the fixed plate 2. An X-axis sliding plate 13 is mounted on the Y-axis guide rail 15. The X-axis sliding plate 13 is driven by a lead screw mechanism mounted on the Y-axis gantry 14. One end of the X-axis sliding plate 13 extends out of the side of the support frame and is vertically mounted on a reversing mounting plate 16. A guide wheel 18 is mounted on the top of the reversing mounting plate 16. Two rows of clamping roller sets 12 are evenly installed on the end face of the reversing mounting plate 16 opposite to the Y-axis gantry 14. The rotating shafts of the two rows of clamping roller sets 12 pass through the reversing mounting plate 16 and cooperate with the roller servo motor 24 installed on the other end face of the reversing mounting plate 16 through gears. A base plate perpendicular to the reversing mounting plate 16 is fixed to the bottom of the end face of the reversing mounting plate 16 where the clamping roller sets 12 are installed. Reversing servo motors 23 and 11 are respectively installed on the upper and lower end faces of the base plate. A reversing gear 22 is also installed on the base plate and meshes with the reversing servo motor 23.

[0040] The shaft of the reversing gear 22 is hollow and passes through the base plate to connect with the top of 11. 11 is semi-circular, with an inner ring groove and a pulley installed.

[0041] A method for forming a refrigerator side condenser tube, comprising the following steps:

[0042] S1. Move the feeding device to any clamping device 21 and make the orientation of 11 face the clamping device 21.

[0043] S2. After the metal tube to be processed passes through the feeding device, its end is fixed in the clamping device 21. The metal tube passes through the guide roller 18 and then through the clamping roller 12. Under the action of the roller servo motor 24, it is fed to the lower guide device 11. The guide device 11 is equipped with rollers arranged in a semi-circle. After passing through the guide device 11, the direction of the metal tube changes from vertical to horizontal. The metal tube extends horizontally, and after extending a certain distance, the clamping device 21 clamps the metal tube.

[0044] S3, the lead screw mechanism drives the X-axis sliding plate 13 and the Y-axis gantry 14 to move according to the condenser tube structure;

[0045] S4. When the tube moves to the position of the rotatable bending die 9 or the fixed bending die 10, the reversing servo motor 23 controls the rotation of the reversing device to rotate half a turn around the rotatable bending die 9 or the fixed bending die 10 through gear transmission, so that the metal tube bends around the rotatable bending die 9 or the fixed bending die 10.

[0046] S5. Finally, the metal tube is transported to another clamping device 21 on the fixed plate 2 to clamp it, and the cutting device 20 is driven to cut the condenser tube.

[0047] S6. Drive the first and second pressing devices to shape the metal tube and then remove it;

[0048] The second pressing device operates as follows: The servo motor 28 rotates, driving the meshing gear 31 to rotate. Through meshing with the arc guide rail 30, the mold moving support plate 29 moves along the arc guide rail 30 with the assistance of the guide wheel 37. The mold moving support plate 29 is connected to the mold connecting plate B32, thereby driving the mold connecting plate B32 to move. The rotatable bending mold 9 mounted on the mold connecting plate B32 moves along the arc guide hole. When the mold reaches the other side of the mounting slot, the servo motor 28 stops. Simultaneously with the second pressing device, the first pressing device also begins operation. The servo motor 39 rotates, driving the lead screw to rotate. The guide plate 34 drives the mold connecting plate A33 to move along the Y-axis. When it reaches the designated position, the servo motor 28 stops.

[0049] S7. Drive the feeding device back to step S1 and clamp the end of the metal tube, then repeat steps S3 to S6 for continuous processing.

Claims

1. A forming device for a refrigerator side condenser tube, comprising a fixing plate (2), characterized in that: The fixed plate (2) is fixed on the frame (1). The fixed plate (2) is provided with two parallel X-axis guide rails (3). A feeding device is installed on the X-axis guide rails (3). Between the two X-axis guide rails (3), there are also bending mechanisms and two sets of cutting mechanisms installed on the fixed plate (2). The two sets of cutting mechanisms are respectively close to the two ends of one of the X-axis guide rails (3). The cutting mechanism includes a cutting device (20) and a clamping device (21). The bending mechanism includes several rotatable bending molds (9) and fixed bending molds (10). The rotatable bending molds (9) shape the heat exchange part of the condenser tube, and the fixed bending molds (10) shape the transition connection part of the condenser tube. The fixed bending molds (10) are installed in the middle of the fixed plate (2) and are adjacent to another X-axis guide rail (3). The rotatable bending molds (9) are distributed at both ends of the several fixed bending molds (10).

2. The forming apparatus for a refrigerator side condenser tube as described in claim 1, characterized in that: There are six fixed pipe bending molds (10), wherein the center of the line connecting the four fixed pipe bending molds (10) and the two fixed pipe bending molds (10) is on the same straight line and is parallel to the X-axis guide rail (3) respectively, and the two fixed pipe bending molds (10) are installed on the first pressing device.

3. The forming apparatus for a refrigerator side condenser tube as described in claim 2, characterized in that: The first pushing device includes a mold connecting plate A (33), two fixed bending pipe molds (10) are respectively installed at both ends of the mold connecting plate A (33), the mold connecting plate A (33) is installed on the guide plate (34), the guide plate (34) is installed on the guide rail (35), the guide rail (35) is installed on the base plate (38), the base plate (38) is suspended at the bottom of the fixed plate (2), the end of the base plate (38) is equipped with a servo motor (39) connected to the guide plate (34), the push rod direction of the servo motor (39) is perpendicular to the mold connecting plate A (33), the fixed plate (2) is machined with a square guide hole (41), and the two fixed bending pipe molds (10) are respectively in contact with the two side walls of the square guide hole (41).

4. The forming apparatus for a refrigerator side condenser tube as described in claim 1, characterized in that: Two of the rotatable pipe bending molds (9) are independently located at both ends of the fixed plate (2). The line connecting the two independent rotatable pipe bending molds (9) and their adjacent cutting device (20) is perpendicular to the X-axis guide rail (3). The remaining rotatable pipe bending molds (9) are arranged in two rows on both sides of the fixed pipe bending mold (10). The two rows of rotatable pipe bending molds (9) are located at the bend of the condenser pipe and the line connecting them is perpendicular to the X-axis guide rail (3).

5. The forming apparatus for a refrigerator side condenser tube as described in claim 4, characterized in that: The rotatable bending mold (9) located on one side of the cutting assembly is fixed on the fixed plate (2) of the two rows of rotatable bending molds (9). The remaining rotatable bending molds (9) extend into the bottom of the fixed plate (2) and are installed on the second pressing device. The pressing device includes a mold connecting plate B (32). The mold connecting plate B (32) has through holes with the same spacing as each row of rotatable bending molds (9) for installing the rotatable bending molds (9). The mold connecting plate B (32) is fixed on the mold moving support plate (29). The mold moving support plate (29) is equipped with meshing gears (31) that cooperate with the arc toothed rail (30) fixed at the bottom of the fixed plate (2). The arc toothed rail (30) is arc-shaped, and the tooth row is located on the outer wall of the arc toothed rail (30). The bottom of both sides of the arc toothed rail (30) has side plates that cooperate with the rollers fixed on the mold moving support plate (29).

6. The forming apparatus for a refrigerator side condenser tube as described in claim 5, characterized in that: One of the two rows of rotatable pipe bending molds (9) adjacent to the cutting assembly is mounted on the movable plate (25). The bottom of the movable plate (25) is connected to the push rod of the tension cylinder (27) fixed to the bottom of the fixed plate (2). The pushing direction of the tension cylinder (27) is parallel to the X-axis guide rail (3).

7. The forming apparatus for a refrigerator side condenser tube as described in claim 5, characterized in that: The fixing plate (2) is also machined with an arc-shaped through hole parallel to the circular arc toothed rail (30).

8. The forming apparatus for a refrigerator side condenser tube as described in claim 1, characterized in that: The feeding device includes a Y-axis gantry (14) on two X-axis guide rails (3). One end of the Y-axis gantry (14) is connected to a lead screw mechanism mounted on a fixed plate (2) and parallel to the X-axis guide rails (3). A Y-axis guide rail (15) perpendicular to the X-axis guide rails (3) is mounted on the top of the fixed plate (2). An X-axis sliding plate (13) is mounted on the Y-axis guide rail (15). The X-axis sliding plate (13) is driven by a lead screw mechanism mounted on the Y-axis gantry (14). One end of the X-axis sliding plate (13) extends out of the side of the support frame and is vertically mounted on a reversing mounting plate (16). A guide wheel (1) is mounted on the top of the reversing mounting plate (16). 8) Two rows of clamping roller sets (12) are evenly installed on the end face of the reversing mounting plate (16) opposite to the Y-axis gantry (14). The rotating shafts of the two rows of clamping roller sets (12) pass through the reversing mounting plate (16) and cooperate with the roller servo motor (24) installed on the other end face of the reversing mounting plate (16) through gears. The bottom of the end face of the reversing mounting plate (16) on which the clamping roller sets (12) are installed is fixed with a base plate perpendicular to the reversing mounting plate (16). The upper and lower end faces of the base plate are respectively installed with reversing servo motors (23) and 11. A reversing gear (22) is also installed on the base plate and meshes with the reversing servo motor (23).

9. The forming apparatus for a refrigerator side condenser tube as described in claim 8, characterized in that: The shaft of the reversing gear (22) is hollow and passes through the base plate and connects to the top of 11. 11 is semi-circular, with an inner ring groove and a pulley installed.

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