PTC auxiliary electric heater aluminum pipe conveying and polishing tooling

Abstract

The utility model discloses a kind of PTC auxiliary electric heater aluminium pipe conveying polishing tool, comprising: polishing table;Limiting plate, be located at the front end of the polishing table, the limiting plate has the passage through along the direction of aluminium pipe conveying;Dust collection groove, be opened in the polishing table and be located at the export side of the passage;Two groups of polishing brush roll, respectively arranged in the transverse two sides of the dust collection groove, the rotating shaft of each group of polishing brush roll is drivingly connected with a driving motor;Spacing adjustment assembly, be located at the polishing table and be located below the polishing brush roll, for driving two groups of polishing brush roll relative or opposite along transverse direction moves, to change the polishing spacing between two. The utility model passes through spacing adjustment assembly of bidirectional thread drive, the polishing brush roll spacing can be accurately adjusted, adapt to aluminium pipe outer diameter tolerance change, avoid the problem that pipe wall is scratched due to spacing too tight or leak problem due to spacing too loose, significantly improve the surface treatment quality of aluminium pipe.

Description

Technical Field

[0001] This utility model relates to a PTC auxiliary electric heater aluminum tube conveying and grinding fixture. Background Technology

[0002] PTC auxiliary electric heaters are widely used in products such as air conditioners and warm air blowers. Before assembly, the aluminum tubes need to have their surface oxide scale, oil stains and micro-burrs removed to ensure a tight fit between the thermally conductive adhesive or insulating sleeve and the PTC ceramic heating element, thereby reducing thermal resistance and improving electrical insulation reliability.

[0003] Existing production lines generally use fixed roller grinding, where aluminum tubes are fed in a straight line and steel wire brush rollers with a fixed spacing are arranged on both sides. Although this solution can achieve continuous conveying, the spacing between the brush rollers is not adjustable. When there is a certain tolerance in the outer diameter of the aluminum tube, too tight a roller will cause scratches on the tube wall, while too loose a roller will cause "missed areas" to be ground. Meanwhile, the grinding dust falls directly onto the machine surface, requiring regular shutdowns for manual cleaning, which reduces the overall efficiency of the equipment.

[0004] Therefore, a PTC-assisted electric heater aluminum tube conveying and grinding fixture is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a PTC auxiliary electric heater aluminum tube conveying and grinding fixture to solve the problem mentioned in the background art that existing production lines generally use fixed roller grinding, the brush roller spacing is not adjustable, and when there is a certain tolerance in the outer diameter of the aluminum tube, too tight will cause scratches on the tube wall, and too loose will cause "missed grinding" phenomenon.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a PTC auxiliary electric heater aluminum tube conveying and grinding fixture, comprising: Polishing table; A limiting plate is provided at the front end of the grinding table, and the limiting plate has a channel that runs through the aluminum tube in the conveying direction. A dust collection tank is provided on the polishing table and located on the outlet side of the channel; Two sets of grinding brush rollers are arranged on the transverse sides of the dust collection trough, and the rotating shaft of each set of grinding brush rollers is connected to a drive motor. A spacing adjustment component is provided on the grinding table and located below the grinding brush rollers. It is used to drive the two sets of grinding brush rollers to move laterally relative to each other or away from each other, so as to change the grinding spacing between them.

[0007] Preferably, the spacing adjustment component includes guide grooves, which are laterally opened on both sides of the dust collection groove. Guide seats are slidably connected inside the two sets of guide grooves. An adjustment motor is provided on the side of the grinding table. A drive shaft is provided at the output end of the adjustment motor. The drive shaft extends through the two sets of guide seats to the side wall of the guide groove.

[0008] Preferably, the drive shaft has a first external thread section and a second external thread section with opposite rotation directions. The first external thread section is screwed to a guide seat, and the second external thread section is screwed to another guide seat.

[0009] Preferably, the two sets of guide seats are respectively provided with screw holes on their sides that mate with the first external thread section and the second external thread section, so that the guide seats can move through the screw holes at the first external thread section and the second external thread section of the drive shaft.

[0010] Preferably, the guide seat has a guide hole that slides with the guide rod, and a guide rod that mates with the guide hole is provided on the side wall of the guide groove. The guide rod is arranged parallel to the drive shaft and fixed to the side wall of the guide groove.

[0011] Preferably, the bottom of the guide seat is provided with a ball bearing, and the bottom wall of the guide groove is provided with a ball groove that rolls with the ball bearing.

[0012] Preferably, the grinding table is provided with a pull-out dust collection box below the dust collection trough, and the dust collection box can be inserted or pulled out from the side along the conveying direction of the aluminum tube.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention uses a bidirectional threaded drive spacing adjustment component to precisely adjust the spacing of the grinding brush rollers, adapting to changes in the outer diameter tolerance of the aluminum tube. This avoids the problem of scratching the tube wall due to excessively tight spacing or missing areas due to excessively loose spacing, significantly improving the surface treatment quality of the aluminum tube.

[0014] The dust collection trough and pull-out dust collection box design allow grinding dust to fall directly into the dust collection box, reducing dust accumulation on the machine surface, lowering the dust concentration in the workshop, and meeting environmental protection and health standards.

[0015] Real-time dust collection reduces the time and labor required for frequent downtime and manual dust cleaning in traditional methods, thus improving the overall efficiency of the equipment.

[0016] The ball bearing guide design reduces frictional losses in the pitch adjustment mechanism during movement, while the bidirectional threaded drive mechanism offers high stability and extends the service life of the device. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a side view of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the dust collection box pull-out structure according to an embodiment of the present utility model; Figure 4 This is a schematic diagram of the spacing adjustment component structure according to an embodiment of the present utility model; Figure 5 This is a top view of the grinding table according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the guide seat structure according to an embodiment of the present utility model.

[0018] In the diagram: 1. Grinding table; 2. Limiting plate; 21. Channel; 3. Dust collection trough; 4. Grinding brush roller; 5. Drive motor; 6. Spacing adjustment assembly; 61. Guide groove; 611. Bead groove; 62. Guide seat; 621. Screw hole; 622. Guide hole; 63. Adjustment motor; 64. Drive shaft; 641. First external thread section; 642. Second external thread section; 65. Ball bearing; 66. Guide rod; 7. Dust collection box. Detailed Implementation

[0019] To address the common problem in existing production lines where fixed roller grinding with non-adjustable roller spacing leads to scratches on the tube wall due to excessive tightness and missed areas due to insufficient spacing when the aluminum tube's outer diameter has tolerances, this invention provides a PTC auxiliary electric heater aluminum tube conveying and grinding fixture. The technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] Please see Figure 1-6 This utility model provides a polishing table 1; A limiting plate 2 is provided at the front end of the grinding table 1, and the limiting plate 2 has a channel 21 that runs through the aluminum tube conveying direction; Dust collection tank 3 is provided on the polishing table 1 and located on the outlet side of the channel 21; Two sets of grinding brush rollers 4 are respectively arranged on both sides of the dust collection trough 3, and the rotating shaft of each set of grinding brush rollers 4 is connected to a drive motor 5. A spacing adjustment component 6 is disposed on the grinding table 1 and located below the grinding brush rollers 4. It drives the two sets of grinding brush rollers 4 to move laterally relative to each other or in opposite directions to change the grinding spacing between them. The spacing adjustment component 6 includes guide grooves 61, which are laterally formed on both sides of the dust collection groove 3. Guide seats 62 are slidably connected inside the two sets of guide grooves 61. An adjustment motor 63 is disposed on the side of the grinding table 1. A drive shaft 64 is disposed at the output end of the adjustment motor 63. The drive shaft 64 extends through the two sets of guide seats 62 to the side wall of the guide grooves 61. The drive shaft 64 has a first external thread section 641 and a second external thread section 642 with opposite directions of rotation. The first external thread section 641 is screwed to one guide seat 62, and the second external thread section 642 is screwed to the other guide seat 62. The two sets of guide seats 62 have screw holes 621 on their sides that mate with the first external thread section 641 and the second external thread section 642, respectively, so that the guide seats 62 can move at the first external thread section 641 and the second external thread section 642 of the drive shaft 64 through the screw holes 621. The guide seats 62 have guide holes 622 that slide with the guide rod 66, and a guide rod 66 that mates with the guide hole 622 is provided on the side wall of the guide groove 61. The guide rod 66 is arranged parallel to the drive shaft 64 and fixed to the side wall of the guide groove 61. The bottom of the guide seat 62 is provided with a ball 65, and the bottom wall of the guide groove 61 is provided with a ball groove 611 that rolls with the ball 65.

[0021] The grinding table 1 is provided with a pull-out dust collection box 7 below the dust collection trough 3. The dust collection box 7 can be inserted or pulled out from the side along the aluminum tube conveying direction.

[0022] The working principle of the PTC auxiliary electric heater aluminum tube conveying and grinding fixture provided by this utility model is as follows: In use, the aluminum tube is pushed to the channel 21 of the limiting plate 2 through the conveying device to ensure that the aluminum tube is accurately aligned and moves in a straight line.

[0023] Next, based on the tolerance range of the outer diameter of the aluminum tube, the spacing adjustment component 6 driven by the bidirectional thread is used to control the rotation of the drive shaft 64 by adjusting the motor 63. The drive shaft 64 engages with the screw holes 621 at the two sets of guide seats 62 through the first external thread section 641 and the second external thread section 642, respectively, to push the corresponding guide seats 62 to move in opposite or opposite directions, thereby adjusting the spacing of the two sets of grinding brush rollers 4.

[0024] The drive motor 5 rotates the brush roller. After the aluminum tube enters the grinding area, the brush bristles contact the surface of the aluminum tube to complete the grinding operation. At the same time, the dust falls into the pull-out dust collection box 7 below through the dust collection trough 3 under the action of gravity. The whole process is efficient and precise, which can effectively improve the surface treatment quality of aluminum tubes, reduce dust pollution, reduce maintenance costs, extend equipment life, save material costs, and improve overall production efficiency.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PTC auxiliary electric heater aluminum pipe conveying polishing tooling, characterized in that, The polishing table (1) comprises: A limiting plate (2) arranged at the front end of the polishing table (1), the limiting plate (2) has a passageway (21) penetrating along the conveying direction of the aluminum pipe; A dust collecting groove (3) is opened in the polishing table (1) and located at the outlet side of the passageway (21); Two groups of polishing brush rollers (4) are arranged on the transverse sides of the dust collecting groove (3), respectively, and the rotating shafts of each group of polishing brush rollers (4) are drivingly connected with a driving motor (5); A spacing adjustment assembly (6) is arranged below the polishing brush rollers (4) on the polishing table (1) and is used to drive the two groups of polishing brush rollers (4) to move transversely relative to or away from each other to change the polishing spacing therebetween. The spacing adjustment assembly (6) comprises a guide groove (61) opened on the two sides of the dust collecting groove (3) in the transverse direction, the interiors of the two groups of guide grooves (61) are slidingly connected with guide seats (62), an adjustment motor (63) is arranged at the side of the polishing table (1), the output end of the adjustment motor (63) is provided with a driving shaft (64), and the driving shaft (64) extends through the two groups of guide seats (62) to the side wall of the guide groove (61).

2. The polishing tooling for PTC auxiliary electric heater aluminum pipe conveying according to claim 1, characterized in that: The driving shaft (64) has a first outer thread segment (641) and a second outer thread segment (642) with opposite rotation directions, the first outer thread segment (641) is screwed with one guide seat (62), and the second outer thread segment (642) is screwed with the other guide seat (62).

3. The polishing tool for PTC auxiliary electric heater aluminum pipe conveying according to claim 2, characterized in that: Screw holes (621) matched with the first outer thread segment (641) and the second outer thread segment (642) are opened on the sides of the two groups of guide seats (62), so that the guide seats (62) move at the first outer thread segment (641) and the second outer thread segment (642) of the driving shaft (64) through the screw holes (621).

4. The polishing tool for PTC auxiliary electric heater aluminum pipe conveying according to claim 3, characterized in that: The guide seat (62) is provided with a guide hole (622) slidingly matched with a guide rod (66), the guide rod (66) is arranged in parallel with the driving shaft (64) and is fixed to the side wall of the guide groove (61) and is matched with the guide hole (622).

5. The PTC auxiliary electric heater aluminum pipe conveying polishing tooling according to claim 2, characterized in that: The bottom of the guide seat (62) is provided with a ball (65), and the bottom wall of the guide groove (61) is provided with a ball groove (611) rollingly matched with the ball (65).

6. The PTC auxiliary electric heater aluminum pipe conveying polishing tooling according to claim 2, characterized in that: The polishing table (1) is provided below the dust collecting groove (3) with a pull-out dust collecting box (7), and the dust collecting box (7) can be inserted or pulled out from the side in the conveying direction of the aluminum pipe.

7. The PTC auxiliary electric heater aluminum pipe conveying polishing tooling according to claim 1, characterized in that: ​

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