Air conditioner condenser expansion pipe offline clamp

By designing a combined clamping of the top longitudinal clamping mechanism and the transverse clamping mechanism, the shaking and dropping of the condenser during the transport process is solved, and the stable down-line of the condenser and production safety are achieved.

CN223083716UActive Publication Date: 2025-07-11FOSHAN DHSZ ELECTRIC APPLIANCES CO LTD
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Patent Information

Application Number
CN202422152947.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-03
Publication Date
2025-07-11
Estimated Expiration
2034-09-03

AI Technical Summary

Technical Problem

During the process of the expansion pipe of the existing air-conditioning condenser, the condenser is prone to shake or fall during the transport process because the fixture only clamps the upper end, resulting in unstable production, and excessive clamping force may cause the condenser to deform.

Method used

An air-conditioning condenser expansion tube lower line clamp is designed, including a top longitudinal clamping mechanism, a first transverse clamping mechanism and a second transverse clamping mechanism. By clamping the longitudinal clamping air jaws and transverse clamping jaws, the stability and safety of the condenser during the conveying process are ensured.

Benefits of technology

It effectively avoids the shaking and falling of the condenser during the transport process, ensures the stability and safety of production, and avoids the deformation of the condenser.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an air conditioner condenser expansion pipe off-line clamp which comprises a support, a top end longitudinal clamping mechanism, a first transverse clamping mechanism and a second transverse clamping mechanism are arranged on the support, the top end longitudinal clamping mechanism is provided with a longitudinal clamping pneumatic claw and a longitudinal clamping claw used for clamping the upper end portion of a condenser, and the longitudinal clamping pneumatic claw drives the longitudinal clamping claw to move in a longitudinal opening and closing mode. The top longitudinal clamping mechanism is provided with a lifting air cylinder, the lifting air cylinder drives a longitudinal clamping jaw and a longitudinal air clamping jaw to move vertically, the first transverse clamping mechanism is provided with a transverse clamping air cylinder, a longitudinal moving air cylinder and a transverse clamping jaw used for clamping the left side and the right side of the condenser, and the longitudinal moving air cylinder drives the corresponding transverse clamping jaw to move front and back. The transverse clamping air cylinder drives the transverse clamping jaw to transversely open and close, the second transverse clamping mechanism and the first transverse clamping mechanism are the same in structure, and the second transverse clamping mechanism is arranged below the first transverse clamping mechanism. The clamp disclosed by the utility model is beneficial to stable offline of the condenser, thereby being beneficial to stable production.
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Description

Technical Field

[0001] The utility model relates to the field of equipment for an air conditioner condenser production line, and particularly relates to a tube expanding and offline fixture for an air conditioner condenser. Background Art

[0002] At present, in the production process of an air conditioner condenser, it is necessary to perform tube expanding treatment on the copper tubes of the air conditioner condenser so that the outer walls of the copper tubes are closely attached to the fins. After the tube expanding process is completed, it is necessary to remove the condenser from the tube expanding machine and place it properly (that is, take the condenser offline), and then transfer the condensers in batches to the next process. Since the condenser is heavy, it is very difficult to remove it manually, with a large labor intensity, which easily causes the condenser to slip out of the hand and fall to the ground, and is also prone to work-related injury accidents. Therefore, currently, a six-axis robotic arm is used to remove the condenser. However, since there are two condensers placed side by side vertically and closely attached to each other on the tube expanding machine, and the space between the condenser and the body of the tube expanding machine is narrow, the fixture can only clamp the middle position of the upper end of the condenser. The six-axis robotic arm drives the fixture to lift the condenser and then place the condenser on the bench on the ground. Since the fixture only clamps the upper end of the condenser, the condenser is prone to shaking during the transportation process, and the condenser occasionally falls off. Although it will not injure the workers, it causes the condenser to need to be repaired. If the clamping force of the fixture is increased, the outer shell of the condenser will be deformed by clamping. Therefore, the above-mentioned fixture in the prior art needs to be improved. Summary of the Invention

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a tube expanding and offline fixture for an air conditioner condenser, which is beneficial to stably taking the condenser offline, thereby facilitating the stable progress of production.

[0004] The purpose of the utility model is achieved through the following technical solutions.

[0005] The disclosed tube expanding and offline fixture for an air conditioner condenser of the utility model includes a bracket for being installed at the end of a robotic arm of a six-axis robotic arm. Among them, a top longitudinal clamping mechanism, a first transverse clamping mechanism, and a second transverse clamping mechanism are provided on the bracket. The top longitudinal clamping mechanism is provided with a longitudinal clamping air claw and a longitudinal clamping claw for clamping the upper end of the condenser. The longitudinal clamping air claw drives the longitudinal clamping claw to longitudinally open and close and move. The top longitudinal clamping mechanism is provided with a lifting cylinder, and the lifting cylinder drives the longitudinal clamping claw and the longitudinal clamping air claw to vertically move. The first transverse clamping mechanism is provided with a transverse clamping cylinder, a longitudinal moving cylinder, and a transverse clamping claw for clamping the condenser on the left and right sides of the condenser. The longitudinal moving cylinder drives the corresponding transverse clamping claw to move back and forth, and the transverse clamping cylinder drives the transverse clamping claw to transversely open and close and move. The second transverse clamping mechanism has the same structure as the first transverse clamping mechanism, and the second transverse clamping mechanism is arranged below the first transverse clamping mechanism.

[0006] Preferably, the top longitudinal clamping mechanism is provided with a suspension plate, a vertical linear bearing and a first mounting plate. The first mounting plate is mounted on the bracket. The vertical linear bearing is mounted on the rear side of the first mounting plate. A vertical guide post is mounted on the lower side of the rear part of the suspension plate. The vertical guide post is adaptively connected to the corresponding vertical linear bearing. The piston rod of the lifting cylinder is mounted and connected to the suspension plate. The longitudinal clamping jaw is mounted on the lower side of the suspension plate. The longitudinal clamping jaw is provided with claw pieces, and suspension plates are respectively mounted on the claw pieces. The longitudinal clamping claws are located below the longitudinal clamping jaw. The longitudinal clamping claws are mounted on the lower ends of the corresponding suspension plates. The longitudinal clamping claws are located in front of the first mounting plate.

[0007] Preferably, a longitudinal guide seat is mounted on the lower side of the suspension plate. The longitudinal guide seats are horizontally distributed on both sides of the longitudinal clamping jaw. A longitudinal guide rod is mounted on one side of the suspension plate. The longitudinal guide rod is linearly and slidably connected to the corresponding longitudinal guide seat.

[0008] Preferably, the first transverse clamping mechanism includes a transverse sliding seat, an upper rack, a lower rack, a synchronous gear and a second mounting plate. The second mounting plate is mounted on the bracket. The number of the transverse sliding seats is set to two. The two transverse sliding seats are respectively slidably connected to the front side of the second mounting plate through corresponding linear guide rail pairs. The synchronous gear is rotatably connected to the second mounting plate. The upper rack and the lower rack are respectively meshed and connected to the upper and lower sides of the synchronous gear. The upper rack and the lower rack are respectively mounted and connected to the corresponding transverse sliding seats. The transverse clamping cylinder is mounted on the front side of the second mounting plate. The piston rod of the transverse clamping cylinder is mounted and connected to one of the transverse sliding seats. A longitudinal telescopic plate is correspondingly mounted on the outer side of the transverse clamping claw. The longitudinal telescopic plate is slidably connected to the corresponding transverse sliding seat. The longitudinal moving cylinder is mounted on the corresponding transverse sliding seat. The piston rod of the longitudinal moving cylinder is mounted and connected to the corresponding longitudinal telescopic plate.

[0009] Preferably, the bracket includes a rear frame, a front frame and a connecting beam. The front frame and the rear frame are fixedly connected relative to each other through the connecting beam. The first mounting plate and the second mounting plate are mounted on the front side of the rear frame. A robotic arm connecting plate is mounted on the rear side of the rear frame.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: By providing a top longitudinal clamping mechanism, a first transverse clamping mechanism and a second transverse clamping mechanism on the bracket, the longitudinal clamping claw is driven by the longitudinal clamping air claw to move longitudinally and open and close, and the lifting air cylinder drives the longitudinal clamping claw and the longitudinal clamping air claw to move vertically. The first transverse clamping mechanism is provided with a transverse clamping air cylinder, a longitudinal moving air cylinder and transverse clamping claws for clamping the condenser on the left and right sides of the condenser. The longitudinal moving air cylinder drives the corresponding transverse clamping claws to move back and forth, and the transverse clamping air cylinder drives the transverse clamping claws to move horizontally and open and close. The second transverse clamping mechanism is arranged below the first transverse clamping mechanism, which is beneficial to firmly clamp the condenser, so as to avoid the phenomenon of the condenser falling, so it is beneficial to stably unload the condenser, thereby facilitating the stable progress of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 Fig. 6 is a front three-dimensional structural schematic diagram of the fixture of the present utility model.

[0012] Figure 2 Fig. 10 is a back three-dimensional structural schematic diagram of the fixture of the present utility model.

[0013] Figure 3 Fig. 14 is an exploded schematic diagram of the fixture of the present utility model.

[0014] Figure 4 Fig. 18 is a back three-dimensional structural schematic diagram of the top longitudinal clamping mechanism of the present utility model.

[0015] Figure 5 Fig. 22 is a right view structural schematic diagram of the top longitudinal clamping mechanism of the present utility model.

[0016] Figure 6 Fig. 26 is a front three-dimensional structural schematic diagram of the first transverse clamping mechanism of the present utility model.

[0017] Figure 7 Fig. 30 is a front three-dimensional structural schematic diagram between the present utility models.

[0018] Figure 8 Fig. 34 is a schematic diagram of a six-axis robotic arm transporting a condenser through the included angle of the present utility model.

[0019] Figure 9 Fig. 38 is a top view schematic diagram of the top longitudinal clamping mechanism of the present utility model clamping the upper end of the condenser.

[0020] Label description: Bracket 1; Robotic arm connecting plate 11; Rear frame 101; Front frame 102; Connecting beam 103; Top longitudinal clamping mechanism 2; Longitudinal clamping jaw 21; Hanging plate 210; Longitudinal guide rod 2101; Longitudinal clamping air claw 22; Claw piece 221; Suspension plate 23; Vertical guide post 231; Longitudinal guide seat 232; Lifting cylinder 24; Vertical linear bearing 25; First mounting plate 26; First transverse clamping mechanism 3; Transverse clamping jaw 31; Longitudinal telescopic plate 311; Longitudinal moving cylinder 32; Transverse sliding seat 33; Upper rack 34; Lower rack 35; Synchronous gear 36; Transverse clamping cylinder 37; Second mounting plate 38; Second transverse clamping mechanism 4; Condenser 99; Six-axis robotic arm 98; Robotic arm end 981. Detailed implementation mode

[0021] The present utility model will be further described below with reference to the accompanying drawings.

[0022] The expanding tube offline fixture for an air conditioner condenser of the present utility model, as Figures 1 to 3 shown, includes a bracket 1 for being installed on the robotic arm end 981 of a six-axis robotic arm 98. The bracket 1 is provided with a top longitudinal clamping mechanism 2, a first transverse clamping mechanism 3 and a second transverse clamping mechanism 4. As Figure 4 and Figure 5 shown, the top longitudinal clamping mechanism 2 is provided with a longitudinal clamping air claw 22 and a longitudinal clamping jaw 21 for clamping the upper end of the condenser 99. The longitudinal clamping air claw 22 is a product on the market. For example, the "MHL2 type" air claw of SMC company can be selected. The longitudinal clamping air claw 22 drives the longitudinal clamping jaw 21 to move longitudinally in an opening and closing manner. That is to say, the longitudinal clamping air claw 22 can drive the two front and rear longitudinal clamping jaws 21 to move closer to each other or move away from each other; As Figure 4 and Figure 5 shown, the top longitudinal clamping mechanism 2 is provided with a lifting cylinder 24. The lifting cylinder 24 drives the longitudinal clamping jaw 21 and the longitudinal clamping air claw 22 to move vertically. That is to say, the longitudinal clamping jaw 21 can move up and down (in the Figure 1 visual direction of Figure 6 shown, the first transverse clamping mechanism 3 is provided with a transverse clamping cylinder 37, a longitudinal moving cylinder 32 and a transverse clamping jaw 31 for clamping the condenser 99 on the left and right sides of the condenser 99. The longitudinal moving cylinder 32 drives the corresponding transverse clamping jaw 31 to move back and forth. The transverse clamping cylinder 37 drives the transverse clamping jaw 31 to move transversely in an opening and closing manner. That is to say, the transverse clamping cylinder 37 can drive the two left and right transverse clamping jaws 31 to move closer to each other or move away from each other; As Figure 1 and Figure 2 shown, the second transverse clamping mechanism 4 has the same structure as the first transverse clamping mechanism 3. The second transverse clamping mechanism 4 is arranged below the first transverse clamping mechanism 3. In other words, the second transverse clamping mechanism 4 can clamp the lower part of the condenser 99 (when the condenser 99 is in an upright state). As Figure 8As shown, the six-axis robotic arm 98 is provided with a robotic arm end 981, and the bracket 1 is installed on the robotic arm end 981 by screws.

[0023] The working principle of the tube expanding and offline fixture for the air conditioner condenser of the present utility model will be briefly described below: As Figure 9 shown, two condensers 99 are placed side by side vertically against each other on the tube expanding machine. During this period, there are copper tube ends protruding upward at the upper end of the condenser 99, and there are also corresponding copper tube ends protruding downward at the lower end of the condenser 99. Therefore, the fixture cannot clamp the lower end face of the condenser 99; the six-axis robotic arm 98 adjusts the fixture of the present utility model to the Figure 1 vertical form shown. The six-axis robotic arm 98 moves the fixture to the rear side of the condenser 99, and then the six-axis robotic arm 98 moves the fixture downward so that the upper end of the condenser 99 is inserted relatively upward between the front and rear longitudinal jaws 21. The longitudinal clamping claws 22 act to move the two longitudinal jaws 21 closer to each other, thus clamping the upper end of the condenser 99 by the longitudinal jaws 21. The six-axis robotic arm 98 lifts the fixture and the condenser 99 together. During this period, due to the gravitational force of the condenser 99, the longitudinal jaws 21 are kept at the lower limit position (relative to the bracket 1). That is to say, during this process, the piston of the lifting cylinder 24 does not move. When the condenser 99 is lifted to a certain height, the upper part of the lifted condenser 99 has protruded above the adjacent non-lifted condenser 99. The longitudinal movement cylinder 32 of the first transverse clamping mechanism 3 then extends the corresponding transverse jaw 31 forward. Since the height position of the transverse jaw 31 is already higher than the non-lifted condenser 99 at this time, it is avoided that the transverse jaw 31 collides with the non-lifted condenser 99 above. The transverse clamping cylinder 37 drives the left and right transverse jaws 31 to clamp the upper part of the condenser 99. Specifically, the transverse jaw 31 located on the left side contacts the left end face of the condenser 99, and the transverse jaw 31 located on the right side contacts the right end face of the condenser 99; then the six-axis robotic arm 98 moves the fixture and the condenser 99 backward together, so that the clamped condenser 99 is completely separated from the tube expanding machine. Since the first transverse clamping mechanism 3 has clamped the condenser 99 previously, during the process of the condenser 99 being moved backward out of the tube expanding machine, because the moving distance of the condenser 99 is short and the movement is simple, the condenser 99 will not fall; then the transverse jaws of the second transverse clamping mechanism 4 extend forward and clamp the lower part of the condenser 99. Since the clamped condenser 99 has been moved backward away from the tube expanding machine and the non-lifted condenser 99 above at this time, the transverse jaws of the second transverse clamping mechanism 4 will not touch the non-lifted condenser 99 above and the body structure of the tube expanding machine either. Thus, the middle position of the upper end of the condenser 99, the upper middle part of the condenser 99, and the lower part of the condenser 99 all obtain the clamping effect; the six-axis robotic arm 98 further moves the condenser 99 backward away from the tube expanding machine, as Figure 8As shown, the six-axis robotic arm 98 adjusts the fixture of the present invention to the prone position. Correspondingly, the condenser 99 also changes to the horizontal position. The six-axis robotic arm 98 lowers the condenser 99 to directly above the condensers in the horizontal stacked state. Then, the longitudinal clamping jaw 22 drives the longitudinal clamping jaw 21 to open and release the condenser 99, and the lifting cylinder 24 drives the longitudinal clamping jaw 21 to move away from the condenser 99. At this time, the longitudinal clamping jaw 21 actually moves horizontally. Therefore, the "lifting" in the "lifting cylinder 24" is with respect to Figure 1 the upright position of the fixture shown. Similarly, the "vertical" in the "vertical movement of the longitudinal clamping jaw 21 and the longitudinal clamping jaw 22" mentioned above is also with respect to Figure 1 the upright position of the fixture shown; the transverse clamping jaw 31 of the first transverse clamping mechanism 3 opens to release the condenser 99. At the same time, the second transverse clamping mechanism 4 releases the condenser 99. Then, without the obstruction of the longitudinal clamping jaw 21, the condenser 99 can vertically drop downward slightly in the horizontal position onto the above-mentioned "condensers in the horizontal stacked state"; after that, the six-axis robotic arm 98 moves another condenser 99 from the tube expanding machine and stacks it horizontally.

[0024] As can be seen from the above, by setting the longitudinal movement cylinder 32 to drive the corresponding transverse clamping jaw 31 to move back and forth, the condenser 99 can be lifted first, and then the transverse clamping jaw 31 can be extended forward. As Figure 9 shown, when the longitudinal clamping jaw 21 clamps the upper end of the condenser 99, it is avoided that the transverse clamping jaw 31 touches the adjacent condenser 99 or the body structure of the tube expanding machine. During the subsequent transfer of the condenser 99, since both the first transverse clamping mechanism 3 and the second transverse clamping mechanism 4 clamp the condenser 99, the phenomenon of the condenser 99 shaking is avoided. Moreover, compared with the prior art, since the clamped parts of the condenser 99 are more, it is beneficial to firmly clamp the condenser 99, so the phenomenon of the condenser 99 falling is avoided. Therefore, it is beneficial to stably offline the condenser, which is conducive to the stable progress of production.

[0025] Furthermore, as Figure 4 and Figure 5 shown, the top longitudinal clamping mechanism 2 is provided with a suspension plate 23, a vertical linear bearing 25, and a first mounting plate 26. As Figure 1 shown, the first mounting plate 26 is mounted on the bracket 1. As Figure 4 shown, the vertical linear bearing 25 is mounted on the rear side of the first mounting plate 26. The lower side of the rear part of the suspension plate 23 is provided with a vertical guide post 231 through corresponding screws. The "vertical" mentioned is with respect to the fixture being in Figure 1In the upright state shown, the vertical guide post 231 is adaptively connected to the corresponding vertical linear bearing 25. The number of vertical linear bearings 25 can be set to two, so that the suspension plate 23 is guided to move vertically in a straight line. The piston rod of the lifting cylinder 24 is installed and connected to the suspension plate 23. The cylinder body of the lifting cylinder 24 is installed on the rear side of the first mounting plate 26 and is located between the two vertical linear bearings 25. The longitudinal clamping jaw 22 is installed on the lower side of the suspension plate 23. Specifically, the cylinder body of the longitudinal clamping jaw 22 is closely attached and installed on the lower side of the suspension plate 23. As Figure 5 shown, the longitudinal clamping jaw 22 is provided with claw pieces 221. Specifically, claw pieces 221 are respectively provided on the front and rear sides of the cylinder body of the longitudinal clamping jaw 22. The two claw pieces 221 are respectively installed and connected to the two piston rods of the longitudinal clamping jaw 22. As Figure 5 shown, suspension plates 210 are respectively installed on the claw pieces 221. The longitudinal clamping claws 21 are located below the longitudinal clamping jaw 22. The longitudinal clamping claws 21 are installed at the lower ends of the corresponding suspension plates 210. The suspension plates 210 are located between the two claw pieces 221 in the front-rear direction. Thus, the longitudinal clamping claws 21 are lifted by the suspension plates 210 below the cylinder body of the longitudinal clamping jaw 22. As Figure 4 and Figure 5 shown, the longitudinal clamping claws 21 are located in front of the first mounting plate 26. Through the above settings, the longitudinal clamping claws 21 extend downward. When the six-axis robotic arm 98 moves the fixture downward so that the upper end of the condenser 99 is inserted between the two longitudinal clamping claws 21 in the front and rear, space is vacated to prevent the upper end of the condenser 99 from colliding with the cylinder body of the longitudinal clamping jaw 22.

[0026] Furthermore, as Figure 5 shown, a longitudinal guide seat 232 is installed on the lower side of the suspension plate 23. As Figure 4As shown, the longitudinal guide seats 232 are horizontally distributed on both sides of the longitudinal clamping air claw 22. That is to say, the number of longitudinal guide seats 232 is set to two. A longitudinal guide rod 2101 is installed on one side of the suspension plate 210. The axis of the longitudinal guide rod 2101 is in the front-rear direction. Specifically, corresponding longitudinal guide rods 2101 are respectively installed on the facing surfaces of the front and rear suspension plates 210. The left and right ends of the suspension plate 210 at the front position are respectively provided with longitudinal guide rods 2101. Similarly, the left and right ends of the suspension plate 210 at the rear position are respectively provided with longitudinal guide rods 2101. The longitudinal guide rods 2101 are linearly slidably connected to the corresponding longitudinal guide seats 232. Specifically, each longitudinal guide seat 232 is respectively installed with two linear bearings. The above two linear bearings are arranged vertically. That is to say, the longitudinal guide rod 2101 installed on the suspension plate 210 at the front position is adaptively connected to the linear bearing at the upper position, and the longitudinal guide rod 2101 installed on the suspension plate 210 at the rear position is adaptively connected to the linear bearing at the lower position. Through the above settings, the suspension plate 210 can linearly move with high rigidity, which is beneficial to firmly clamping the condenser 99 and also avoids obvious shaking of the suspension plate 210 relative to the bracket 1 when transferring the condenser 99. The weight of the condenser 99 is supported by the longitudinal guide seats 232 and the suspension plate 23, avoiding obvious bending moment on the piston rod of the longitudinal clamping air claw 22, which is beneficial to making the longitudinal clamping air claw 22 durable.

[0027] Further, as Figure 6As shown in the figure, the first horizontal clamping mechanism 3 includes a horizontal slide 33, an upper rack 34, a lower rack 35, a synchronous gear 36 and a second mounting plate 38. The second mounting plate 38 is mounted on the bracket 1. The number of horizontal slides 33 is set to two. The two horizontal slides 33 are respectively slidably connected to the front side of the second mounting plate 38 through corresponding linear guide pairs. Specifically, the slider of the above linear guide pair is mounted and connected to the front surface of the second mounting plate 38, and the guide rail of the above linear guide pair is mounted on the rear surface of the corresponding horizontal slide 33. The synchronous gear 36 is rotatably connected to the second mounting plate 38, and the rotation axis of the synchronous gear 36 is along the front-rear direction. The upper rack 34 and the lower rack 35 are respectively meshed and connected to the upper and lower sides of the synchronous gear 36. The upper rack 34 and the lower rack 35 are respectively mounted and connected to the corresponding horizontal slides 33. Specifically, the upper rack 34 is mounted on the rear surface of the left horizontal slide 33, and the lower rack 35 is mounted on the rear surface of the right horizontal slide 33. The horizontal clamping cylinder 37 is mounted on the front side of the second mounting plate 38 through a cylinder support. The piston rod of the horizontal clamping cylinder 37 is mounted and connected to one of the horizontal slides 33 (for example, the right horizontal slide 33). A longitudinal telescopic plate 311 is correspondingly mounted on the outer side of the horizontal clamping jaw 31. Thus, in the left-right direction, the two horizontal clamping jaws 31 are located between the two longitudinal telescopic plates 311. The longitudinal telescopic plate 311 is slidably connected to the corresponding horizontal slide 33. The longitudinal movement cylinder 32 is mounted on the corresponding horizontal slide 33, and the piston rod of the longitudinal movement cylinder 32 is mounted and connected to the corresponding longitudinal telescopic plate 311. Thus, when the piston rod of the longitudinal movement cylinder 32 extends forward, it drives the corresponding longitudinal telescopic plate 311 to extend forward. Then, when the piston rod of the horizontal clamping cylinder 37 retracts (to the left), it can drive the corresponding horizontal slide 33, longitudinal movement cylinder 32, longitudinal telescopic plate 311 and horizontal clamping jaw 31 at the right position to move to the left. The lower rack 35 drives the synchronous gear 36 to rotate, and the synchronous gear 36 drives the upper rack 34 and the horizontal slide 33, longitudinal movement cylinder 32, longitudinal telescopic plate 311 and horizontal clamping jaw 31 at the left position to move synchronously to the right, that is, to make the two horizontal clamping jaws 31 on the left and right move closer to each other, so that the condenser 99 can be clamped. Since the width dimension of the condenser 99 in the left-right direction is relatively large, it is not convenient to directly clamp the condenser 99 with pneumatic fingers. By arranging the horizontal slide 33 in combination with the longitudinal telescopic plate 311 to support and connect the horizontal clamping jaw 31, the two horizontal clamping jaws 31 on the left and right can be located outside the condenser 99. Moreover, by arranging the above structure in which the upper rack 34 and the lower rack 35 are respectively meshed and connected to the upper and lower sides of the synchronous gear 36, the two horizontal clamping jaws 31 on the left and right can move synchronously to open and close.

[0028] Further, as Figure 7As shown, the bracket 1 includes a rear frame 101, a front frame 102 and a connecting beam 103. The front frame 102 and the rear frame 101 are fixedly connected relative to each other through the connecting beam 103. Both the rear frame 101 and the front frame 102 can be made by splicing aluminum profiles. The above-mentioned connecting beam 103 can also be made of aluminum profiles, which is beneficial to reducing the self-weight of the fixture. For example, Figure 1 and Figure 2 As shown, the first mounting plate 26 and the second mounting plate 38 are installed on the front side of the rear frame 101. The longitudinal clamping jaw 21 is located above the front frame 102. The transverse sliding seat 33 passes through between the rear frame 101 and the front frame 102, so that the transverse clamping jaw 31 is located outside the front frame 102 in the left-right direction. A robotic arm connecting plate 11 is installed on the rear side of the rear frame 101. As Figure 8 shown, the robotic arm connecting plate 11 is installed and connected to the end of the robotic arm 981. By setting the above-mentioned bracket 1 as a three-dimensional frame structure, it is beneficial to increase the structural rigidity of the bracket 1 and is beneficial to the fixture to reliably clamp the condenser 99.

Claims

1. An expansion tube offline fixture for an air conditioner condenser, comprising a bracket (1) for installation at the end (981) of a robotic arm of a six-axis robotic arm (98), characterized in that: The bracket (1) is provided with a top longitudinal clamping mechanism (2), a first transverse clamping mechanism (3) and a second transverse clamping mechanism (4). The top longitudinal clamping mechanism (2) is provided with a longitudinal clamping gripper (22) and a longitudinal claw (21) for clamping the upper end of the condenser (99). The longitudinal clamping gripper (22) drives the longitudinal claw (21) to move longitudinally in an opening and closing manner. The top longitudinal clamping mechanism (2) is provided with a lifting cylinder (24), and the lifting cylinder (24) drives the longitudinal claw (21) and the longitudinal clamping gripper (22) to move vertically. The first transverse clamping mechanism (3) is provided with a transverse clamping cylinder (37), a longitudinal moving cylinder (32) and a transverse claw (31) for clamping the condenser (99) on the left and right sides of the condenser (99). The longitudinal moving cylinder (32) drives the corresponding transverse claw (31) to move back and forth, and the transverse clamping cylinder (37) drives the transverse claw (31) to move transversely in an opening and closing manner. The second transverse clamping mechanism (4) has the same structure as the first transverse clamping mechanism (3), and the second transverse clamping mechanism (4) is arranged below the first transverse clamping mechanism (3).

2. The tube expanding and offline fixture for the air conditioner condenser according to claim 1, wherein: The top longitudinal clamping mechanism (2) is provided with a suspension plate (23), a vertical linear bearing (25) and a first mounting plate (26). The first mounting plate (26) is mounted on the bracket (1). The vertical linear bearing (25) is mounted on the rear side of the first mounting plate (26). A vertical guide post (231) is mounted on the lower side of the rear part of the suspension plate (23). The vertical guide post (231) is adaptively connected to the corresponding vertical linear bearing (25). The piston rod of the lifting cylinder (24) is connected to the suspension plate (23) for mounting. The longitudinal clamping gripper (22) is mounted on the lower side of the suspension plate (23). The longitudinal clamping gripper (22) is provided with claw pieces (221), and suspension plates (210) are respectively mounted on the claw pieces (221). The longitudinal claw (21) is located below the longitudinal clamping gripper (22). The longitudinal claw (21) is mounted on the lower end of the corresponding suspension plate (210). The longitudinal claw (21) is located in front of the first mounting plate (26).

3. The tube expanding and off-line fixture for the air conditioner condenser according to claim 2, wherein: A longitudinal guide seat (232) is mounted on the lower side of the suspension plate (23). The longitudinal guide seats (232) are transversely distributed on both sides of the longitudinal clamping gripper (22). A longitudinal guide rod (2101) is mounted on one side of the suspension plate (210). The longitudinal guide rod (2101) is in linear sliding connection with the corresponding longitudinal guide seat (232).

4. The tube expanding and offline fixture for an air conditioner condenser according to claim 3, wherein: The first lateral clamping mechanism (3) includes a lateral slide base (33), an upper rack (34), a lower rack (35), a synchronous gear (36) and a second mounting plate (38). The second mounting plate (38) is mounted on the bracket (1). The number of the lateral slide bases (33) is set to two. The two lateral slide bases (33) are respectively slidably connected to the front side of the second mounting plate (38) through corresponding linear guide pairs. The synchronous gear (36) is rotatably connected to the second mounting plate (38). The upper rack (34) and the lower rack (35) are respectively meshed and connected to the upper and lower sides of the synchronous gear (36). The upper rack (34) and the lower rack (35) are respectively installed and connected to the corresponding lateral slide bases (33). The transverse clamping cylinder (37) is installed on the front side of the second mounting plate (38). The piston rod of the transverse clamping cylinder (37) is installed and connected to one of the lateral slide bases (33). A longitudinal telescopic plate (311) is correspondingly installed on the outer side of the lateral clamping jaw (31). The longitudinal telescopic plate (311) is slidably connected to the corresponding lateral slide base (33). The longitudinal movement cylinder (32) is installed on the corresponding lateral slide base (33). The piston rod of the longitudinal movement cylinder (32) is installed and connected to the corresponding longitudinal telescopic plate (311).

5. The tube expanding and offline fixture for an air conditioner condenser according to claim 4, characterized in that: The bracket (1) includes a rear frame (101), a front frame (102) and a connecting beam (103). The front frame (102) and the rear frame (101) are relatively fixedly connected through the connecting beam (103). The first mounting plate (26) and the second mounting plate (38) are installed on the front side of the rear frame (101). A robotic arm connecting plate (11) is installed on the rear side of the rear frame (101).