End plate grinding device

Abstract

The utility model provides an end plate polishing device, and belongs to the technical field of air cooler manufacturing equipment, the device comprises a moving frame, the moving frame comprises a vertical plate, universal wheels are arranged at the bottom of the vertical plate, a concave seat is arranged on the vertical plate, and telescopic arms are arranged on supporting arms on the two sides of the concave seat; the polishing assembly comprises a transmission shaft, the upper end and the lower end of the transmission shaft are rotationally connected with the corresponding supporting arms of the concave base correspondingly, and polishing wheels are arranged in the axis direction of the transmission shaft in an array mode and used for polishing the end of the end plate. The clamping assembly is connected with the telescopic arm and comprises a connecting plate, connecting bases are arranged at the two ends of the connecting plate respectively, each connecting base is provided with a guide groove, a first rotating shaft is arranged in each connecting base in a rolling mode, a connecting rod is arranged at one end of each first rotating shaft, a clamping piece is arranged at one end of each connecting rod and located on the front side of the corresponding first rotating shaft, and the joint of each connecting rod and the corresponding first rotating shaft is rotationally connected with the output end of an air cylinder. By means of the scheme, manual operation can be replaced, the working efficiency is improved, it is ensured that the grinding strength is consistent, and connection between the finned tube and the end plate is not affected.

Description

An end plate grinding device Technical Field

[0001] This utility model belongs to the technical field of air cooler manufacturing equipment, and in particular relates to an end plate grinding device. Background Technology

[0002] End plates are connecting components used in air coolers. They are installed at both ends of the frame and have multiple through holes for installing finned tubes. In use, one end of the finned tube is inserted into the through hole of the end plate at one end of the frame, and then the other end of the finned tube is inserted into the through hole of the end plate at the other end of the frame, so that the end plate supports the finned tube.

[0003] During installation, because the two ends of the finned tube extend different lengths beyond the outer side of the end plates, one end of the finned tube needs to be kept flush with the outer side of one end plate and welded to that end plate. Then, the excess portion of the other end of all the finned tubes extending beyond the other end plate is cut off and then welded to make both ends of the finned tube flush with the outer side of the corresponding end plate. Due to the large number of welding positions, a lot of weld slag will remain on the outer side of the end plate during the welding process, affecting subsequent processing.

[0004] Traditional methods of removing welding slag mostly rely on manual labor. Workers hold a grinder and repeatedly grind the outer side of the end plate up and down. During the grinding process, the lower part of the end plate needs to be bent over, which is labor-intensive, inefficient, and makes it impossible to accurately control the grinding force. This may result in over-grinding of the welding position, affecting the connection between the finned tube and the end plate and reducing the connection strength. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this utility model provides an end plate grinding device to replace manual operation, improve work efficiency, ensure consistent grinding force, and avoid affecting the connection between the finned tube and the end plate.

[0006] In order to achieve the purpose of this utility model, the following solution is proposed:

[0007] An end plate grinding device, comprising:

[0008] The mobile frame includes a vertical plate with casters at the bottom. The upper and lower ends of the vertical plate are respectively provided with concave seats. The concave seats are horizontally arranged with their openings facing outwards. The outer ends of the support arms on both sides of the concave seats are provided with telescopic arms.

[0009] Two grinding components are provided vertically. Each grinding component includes a drive shaft, with its upper and lower ends rotatably connected to a support arm of a corresponding concave seat. Grinding wheels are arranged in an array along the axial direction of the drive shaft for grinding the ends of the end plate.

[0010] The snap-fit ​​assembly comprises four components, each connected to a telescopic arm. Each snap-fit ​​assembly includes a connecting plate connected to the telescopic arm. Both ends of the connecting plate are provided with inverted L-shaped connecting seats. Each connecting seat is provided with an inverted L-shaped guide groove. A first rotating shaft is rotatably mounted in the guide groove. One end of the first rotating shaft extends out of one of the connecting seats and is rotatably mounted with a connecting rod. One end of the connecting rod is rotatably mounted with a snap-fit ​​component, which is located in front of the first rotating shaft and between the two connecting seats. The connection between the connecting rod and the first rotating shaft is rotatably connected to the output end of a cylinder, which is mounted on one side of the recessed support arm.

[0011] Furthermore, handles are provided on the outer side of the vertical panel.

[0012] Furthermore, the drive shaft has a rectangular cross-section, and the grinding wheel has a rectangular through hole in the middle. The through hole is adapted to the cross-section of the drive shaft. Both ends of the drive shaft are coaxially provided with round shafts, which are rotatably connected to the support arms of the concave seat. The upper round shaft passes through the support arm of the corresponding concave seat and is connected to the output end of the motor.

[0013] Furthermore, the external thread of the round shaft is fitted with a limiting nut, and T-shaped sleeves are provided at both ends of the grinding wheel distribution trajectory. The horizontal part of the T-shaped sleeve abuts against the corresponding grinding wheel, and the vertical part abuts against the limiting nut. The vertical part of the T-shaped sleeve has a rectangular tubular structure and passes through the outside of the drive shaft.

[0014] Furthermore, the snap-fit ​​component includes a second rotating shaft, with both ends of the second rotating shaft being tactilely connected to corresponding guide grooves. A mounting seat is provided in the middle of the second rotating shaft, and a mounting rod is provided on the outward-facing side of the mounting seat. A roller is rotatably provided at the lower end of the mounting rod.

[0015] The beneficial effects of this utility model are as follows:

[0016] Two sets of grinding components are used to grind the end plate in sequence to ensure grinding effect and improve grinding efficiency. During the grinding process, the clamping parts are kept in contact with the other side of the end plate, and the roller is used to roll and contact the other side of the end plate to reduce the friction between the clamping parts and the other end of the end plate during the grinding process, thereby reducing the labor intensity of workers and ensuring that the end plate is subjected to balanced force during the grinding process, avoiding excessive grinding that may affect the connection strength between the finned tube and the end plate. Attached Figure Description

[0017] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0018] Figure 1 shows a schematic diagram of the application scenario of this application.

[0019] Figure 2 shows a schematic diagram of the state in which the roller of this application moves to the upper part of the other side of the end plate.

[0020] Figure 3 shows a magnified view of part A in Figure 2.

[0021] Figure 4 shows a schematic diagram of the state in which the roller of this application abuts against the other side of the end plate.

[0022] Figure 5 shows a magnified view of section B in Figure 4.

[0023] Figure 6 shows a three-dimensional structural diagram of this application.

[0024] Figure 7 shows a schematic diagram of the mobile frame structure of this application.

[0025] Figure 8 shows a schematic diagram of the drive shaft and T-sleeve structure of this application.

[0026] Figure 9 shows a schematic diagram of the grinding wheel structure of this application.

[0027] Figure 10 shows a schematic diagram of the snap-fit ​​assembly of this application.

[0028] The markings in the diagram are: End plate-1, Support assembly-10, Moving frame-11, Caster wheel-12, Concave seat-13, Telescopic arm-14, Handle-15, Grinding assembly-20, Drive shaft-21, Round shaft-211, Limit nut-212, Grinding wheel-22, Through hole-221, Motor-23, T-sleeve-24, Snap-fit ​​assembly-30, Connecting plate-31, Connecting seat-32, Guide groove-33, First rotating shaft-34, Connecting rod-35, Snap-fit ​​piece-36, Second rotating shaft-361, Mounting seat-362, Mounting rod-363, Roller-364, Cylinder-37. Detailed Implementation

[0029] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0030] As shown in Figures 1-10, this embodiment provides an end plate grinding device. After the two ends of the finned tube are inserted into the corresponding end plates 1, one end of the finned tube is fixed to the end plate 1 at one end, and the other end of the finned tube extends out of the end of the other end plate 1. The excess part of the finned tube extending out of the other end plate 1 is cut and welded together with the other end plate 1. Welding slag will be generated at the welding point. The grinding device is used to grind the welding slag clean.

[0031] Specifically, as shown in Figures 1 and 6, the polishing device includes a movable frame 10, a polishing component 20, and a snap-fit ​​component 30.

[0032] As shown in Figures 6 and 7, the movable frame 10 includes a vertical plate 11, casters 12, concave seats 13, telescopic arms 14, and handles 15. The vertical plate 11 has a rectangular plate structure. Two concave seats 13 are arranged in parallel and are horizontally arranged at the upper and lower ends of the vertical plate 11, respectively. The opening of the concave seats 13 faces away from the vertical plate 11. A strip seat is provided at the bottom of the lower concave seat 13. Four casters 12 are provided and are located at the two ends of the bottom of the strip seat. Four telescopic arms 14 are provided and are located at the outer ends of the arms of the concave seats 13. The handles 15 are provided on the side of the vertical plate 11 away from the concave seats 13.

[0033] As shown in Figures 6 and 8-9, two grinding components 20 are vertically arranged, and both ends of each grinding component 20 are connected to the same side support arm of the two concave seats 13 respectively. The grinding component 20 includes a drive shaft 21, a grinding wheel 22, a motor 23, and a T-sleeve 24. The motor 23 is mounted on the upper side of the support arm of the concave seat 13 located at the upper end of the vertical plate 11, and its output end is vertically downward.

[0034] The cross-section of the drive shaft 21 is rectangular. The grinding wheel 22 has a through hole 211 in the middle that matches the cross-section of the drive shaft 21. Multiple grinding wheels 22 are arranged in an array along the axial direction of the drive shaft 21. The distribution trajectory of the grinding wheels 22 is greater than the width of the end plate so that the movement trajectory of the grinding wheels 22 covers the end plate 1.

[0035] Two T-shaped sleeves 24 are provided and are located at both ends of the distribution track of the grinding wheel 22. The vertical part of the T-shaped sleeve 24 has a rectangular tubular structure and the horizontal part of the T-shaped sleeve 24 has a disc-shaped structure, so that the vertical part of the T-shaped sleeve 24 is coaxially sleeved at both ends of the transmission shaft 21, and the corresponding horizontal part of the T-shaped sleeve 24 abuts against both ends of the distribution track of the grinding wheel 22.

[0036] A round shaft 211 is coaxially provided at both ends of the transmission shaft 21. The outer wall of the round shaft 211 is provided with an external thread. A limit nut 212 is threadedly fitted on the external thread of the round shaft 211. The limit nut 212 abuts against one end of the vertical part of the T-shaped sleeve 24, thereby limiting the axial direction of the grinding wheel 22.

[0037] As shown in Figures 2-6 and 10, there are four snap-fit ​​components 30. Each snap-fit ​​component 30 includes a connecting plate 31, a connecting seat 32, a first rotating shaft 34, a connecting rod 35, a snap-fit ​​part 36, and a cylinder 37. The middle of one side of the connecting plate 31 is connected to the output end of the telescopic arm 14. The connecting seats 32 are respectively vertically arranged at both ends of the other side of the connecting plate 31. The connecting seats 32 have an inverted L-shaped structure, with one end of the vertical part perpendicular to the corresponding two ends of the other side of the connecting seat 32, and the horizontal part pointing vertically downward. The connecting seat 32 has an inverted L-shaped guide groove 33. The first rotating shaft 34 is located on the connecting plate 31. At the front of the connecting plate 31, both ends of the first rotating shaft 34 are in rolling engagement with the guide groove 33. One end of the first rotating shaft 34 extends out of the guide groove 33 on one side and is rotatably connected to one end of the connecting rod 35. The other end of the connecting rod 35 is rotatably connected to the snap-fit ​​member 36, and the snap-fit ​​member 36 is located on the front side of the first rotating shaft 34. Both ends of the snap-fit ​​member 36 are in rolling engagement with the guide groove 33. The cylinder 37 is located on one side of the support arm of the concave seat 14. The output end of the cylinder 37 is connected to the rotatable connection between the first rotating shaft 34 and the snap-fit ​​member 36, and the cylinder 37 is rotatably connected to the first rotating shaft 34.

[0038] The snap-fit ​​component 36 includes a second rotating shaft 361, a mounting base 362, a mounting rod 363, and a roller 364. The second rotating shaft 361 is located in front of the first rotating shaft 34. Both ends of the second rotating shaft 361 are respectively in rolling engagement with the guide groove 33. The mounting base 362 is installed in the middle of the second rotating shaft 361. When the first rotating shaft 34 and the second rotating shaft 361 are located in the horizontal section of the guide groove 33, as shown in Figure 3, the mounting rod 363 is perpendicular to the side of the mounting base 362 away from the connecting plate 31. Two limiting plates are provided at intervals at the outer end of the mounting rod 363, and the roller 364 is rolled between the two limiting plates.

[0039] The specific usage process is as follows:

[0040] Push the handle 15 to move the grinding device to one end of the end plate 1. Slowly move the moving frame 10 so that the grinding wheel 22 on one side is close to the side of the end plate 1 to be ground. Push the moving frame 10 along the length of the end plate 1 and start the motor 23 at the same time so that the motor 23 drives the grinding wheel 22 to rotate, thereby grinding the end plate 1.

[0041] To keep the grinding wheel 22 close to the end plate 1 during the grinding process, the telescopic arm 14 is activated, causing the connecting seat latch 36 to extend to the other side of the end plate 1. The cylinder 37 is then activated, causing the cylinder 37 to push the first rotating shaft 34 to move along the horizontal section of the guide groove 33. This causes the first rotating shaft 34 to drive the connecting rod 35 to move synchronously, so that the connecting rod 35 drives the second rotating shaft 361 to move to the vertical section of the guide groove 33. This causes the side of the mounting seat 362 with the mounting rod 363 to rotate downwards by 90°, so that the mounting rod 363 is in a vertical state. Then, the telescopic arm 14 is activated to retract until the roller 364 abuts against the other side of the end plate 1, at which point the telescopic arm 14 is paused, resulting in the state shown in Figure 5.

[0042] During the polishing process, the operator only needs to hold the handle 15 and follow the moving frame 10 to push along the length of the end plate 1 to polish the end plate 1. This not only has high efficiency, but also reduces the labor intensity of workers.

[0043] The above description is merely a preferred embodiment of this utility model and does not imply its uniqueness or limitation. Those skilled in the art should understand that various changes or equivalent substitutions made to this utility model without departing from its scope are all within the protection scope of this utility model.

Claims

1. An end plate grinding device, characterized in that, include: The movable frame (10) includes a vertical plate (11) with casters (12) at its bottom. The vertical plate (11) has concave seats (13) at its upper and lower ends. The concave seats (13) are horizontally positioned with their openings facing outwards. Telescopic arms (14) are provided at the outer ends of the support arms on both sides of the concave seats (13). Two grinding components (20) are provided vertically. The grinding components (20) include a drive shaft (21). The upper and lower ends of the drive shaft (21) are rotatably connected to one support arm of the corresponding concave seat (13). Grinding wheels (22) are arranged in an array along the axial direction of the drive shaft (21) for grinding the end of the end plate (1). Four snap-fit ​​components (30) are provided and are connected to the telescopic arms (14) respectively. The snap-fit ​​components (30) include components connected to the telescopic arms (14). The connecting plate (31) of the arm (14) has an inverted L-shaped connecting seat (32) at both ends. Each connecting seat (32) has an inverted L-shaped guide groove (33). A first rotating shaft (34) is rolled in the guide groove (33). One end of the first rotating shaft (34) extends out of one of the connecting seats (32) and is rotatably connected to a connecting rod (35). One end of the connecting rod (35) is rotatably connected to a snap-fit ​​(36), and the snap-fit ​​(36) is located in front of the first rotating shaft (34). The snap-fit ​​(36) is located between the two connecting seats (32). The connecting rod (35) is connected to the first rotating shaft (34) at the output end of the cylinder (37). The cylinder (37) is installed on one side of the support arm of the concave seat (13).

2. The end plate grinding device according to claim 1, characterized in that, A handle (15) is provided on the outside of the vertical plate (11).

3. The end plate grinding device according to claim 1, characterized in that, The cross-section of the drive shaft (21) is rectangular. The middle of the grinding wheel (22) is provided with a rectangular through hole (221). The through hole (221) is adapted to the cross-section of the drive shaft (21). Both ends of the drive shaft (21) are coaxially provided with round shafts (211). The round shafts (211) are rotatably connected to the support arms of the concave seat (13). The upper round shaft (211) passes through the support arm of the corresponding concave seat (13) and is connected to the output end of the motor (23).

4. The end plate grinding device according to claim 3, characterized in that, The external thread of the round shaft (211) is fitted with a limit nut (212). T-shaped sleeves (24) are provided at both ends of the distribution trajectory of the grinding wheel (22). The horizontal part of the T-shaped sleeve (24) abuts against the corresponding grinding wheel (22), and the vertical part abuts against the limit nut (212). The vertical part of the T-shaped sleeve (24) has a rectangular tubular structure and passes through the outside of the drive shaft (21).

5. The end plate grinding device according to claim 1, characterized in that, The snap-fit ​​component (36) includes a second rotating shaft (361), both ends of which are tumbled to the corresponding guide grooves (33). The middle part of the second rotating shaft (361) is provided with a mounting seat (362), and the outward side of the mounting seat (362) is provided with a mounting rod (363). The lower end of the mounting rod (363) is rotatably provided with a roller (364).

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