Abrasive belt grinding machine for automobile door hinge

Abstract

The utility model discloses an abrasive belt grinding machine for an automobile door hinge, which belongs to the technical field of automobile part processing and comprises a rack, a conveying mechanism is arranged at the upper end of the rack, a feeding groove is arranged at one end of the conveying mechanism, a blanking groove is arranged at the other end of the conveying mechanism, a first grinding head is arranged at the upper end of the conveying mechanism, and a second grinding head is arranged at the lower end of the conveying mechanism. A second grinding head is arranged on one side of the first grinding head, and an abrasive dust collecting box is arranged in the bottom end of the rack. The chain type conveying mechanism composed of the metal chain, the chain wheel and the guide rail bearing is adopted, the durability, dust resistance and spark resistance are good, the conveying speed can be adjusted according to actual work requirements through the speed adjusting type design, rhythm matching online use of an automatic feeding system is facilitated, operation is safer, a safe distance exists between the feeding end and a contact polishing position, and the production efficiency is improved. And no potential safety hazard exists under the condition of manual feeding, and the consistency of the polished product is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile parts processing, and in particular relates to an abrasive belt grinder used for automobile door hinges. Background Art

[0002] Automobile door hinges are essential parts in the production of automobile industry. They are used for the firm and safe connection between the door and the body, and realize the flexible and smooth opening and closing of the door. Generally, they are made of metal profiles or metal forgings, stampings, and are made after cutting and milling. The surface of automobile door hinges has pitting and oxide scale, and the milling process will also produce flash and burrs. The oxide scale, flash and burrs need to be removed to meet the requirements of the subsequent painting and installation process.

[0003] The existing processing method requires the processing personnel to hold the workpiece in hand and contact the high-speed rotating grinding wheel. The workpiece is generally small in size. The distance between the hand and the grinding wheel is very close during manual grinding, which poses a great safety hazard. At the same time, the grinding operation itself is a process that produces a lot of dust, noise and sparks. Long-term close work will also affect the physical and mental health of employees. Moreover, manual grinding operations require high operating skills and personal experience of employees, with high labor intensity and poor product consistency. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a belt grinder for automobile door hinges, which has the characteristics of high production efficiency, good product quality and safe operation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a belt grinder for automobile door hinges, comprising a frame, a conveying mechanism is arranged at the upper end of the frame, a feeding trough is arranged at one end of the conveying mechanism, a discharge trough is arranged at the other end of the conveying mechanism, a grinding head 1 is arranged at the upper end of the conveying mechanism, a grinding head 2 is arranged on one side of the grinding head 1, and a grinding chip collection box is arranged inside the bottom end of the frame.

[0006] Preferably, the conveying mechanism includes a clamp body, an ear-type chain, a matching shaft, a sprocket and a clamp fixing plate, wherein a matching shaft is provided at the upper end of one side of the frame, a sprocket is provided on the surface of the matching shaft, an ear-type chain is provided on the surface of the sprocket, a clamp fixing plate is provided at the upper end of the ear-type chain, and a clamp body is provided at the upper end of the clamp fixing plate.

[0007] Preferably, U-shaped bearings are symmetrically arranged on both sides of the bottom end of the fixture fixing plate, and an optical axis guide rail is arranged on one side of the U-shaped bearing.

[0008] Preferably, a driving wheel is arranged inside the grinding head 1, a grinding wheel is arranged on one side of the driving wheel, a sanding belt is arranged between the driving wheel and the grinding wheel, and a motor is arranged on one side surface of the grinding head 1 corresponding to the driving wheel.

[0009] Preferably, a tensioning wheel is arranged inside the grinding head 1 corresponding to the sanding belt, and a tensioning cylinder is arranged on the surface of the grinding head 1 corresponding to the tensioning wheel.

[0010] Preferably, a bearing seat is provided at the bottom end of the motor, and a floating mechanism is provided on one side of the grinding head.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model adopts a chain conveying mechanism composed of a metal chain, a sprocket and a guide bearing, which has good durability and dust and spark resistance. The speed-regulating design can adjust the conveying speed according to actual work needs, which is convenient for the rhythm of the automatic feeding system to be used online, and the operation is safer. There is a safe distance between the feeding end and the contact grinding position, and there is no safety hazard in the case of manual feeding.

[0013] 2. The utility model adopts a floating double-belt grinding head. The floating function enables the grinding head to rise and fall accordingly according to the height change of the grinding surface of the workpiece, and will not cause over-grinding of high points or under-grinding of low points. The double-belt grinding head can be installed with two kinds of sanding belts of different coarseness and fineness, so as to achieve a balance between grinding efficiency and surface finish, and at the same time avoid the phenomenon that a workpiece with too large flash is not completely ground by one grinding head, thereby ensuring the consistency of workpiece grinding. The speed, contact position and contact force of each workpiece passing through the grinding head are constant, and the consistency of the product after grinding is good.

[0014] 3. The utility model adopts a replaceable fixture design, which can adapt to the processing needs of workpieces of different specifications by simply replacing the fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the conveying mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the grinding head of the utility model;

[0018] Figure 4 It is a schematic diagram of the back structure of the grinding head of the utility model.

[0019] In the figure: 1. feed chute; 2. conveying mechanism; 3. frame; 4. grinding head one; 5. grinding head two; 6. material drop chute; 7. grinding chip collection box; 8. fixture body; 9. chain with ears; 10. matching shaft; 11. sprocket; 12. U-shaped bearing; 13. optical axis guide; 14. fixture fixing plate; 15. driving wheel; 16. tensioning wheel; 17. abrasive belt; 18. grinding wheel; 19. floating mechanism; 20. tensioning cylinder; 21. bearing seat; 22. motor. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 The utility model provides the following technical solutions: a belt grinder for automobile door hinges, comprising a frame 3, a conveying mechanism 2 is arranged at the upper end of the frame 3, a feeding trough 1 is arranged at one end of the conveying mechanism 2, a discharge trough 6 is arranged at the other end of the conveying mechanism 2, a grinding head 1 4 is arranged at the upper end of the conveying mechanism 2, a grinding head 2 5 is arranged on one side of the grinding head 1 4, and a grinding chip collection box 7 is arranged inside the bottom end of the frame 3.

[0022] Specifically, the conveying mechanism 2 includes a clamp body 8, an ear-type chain 9, a matching shaft 10, a sprocket 11 and a clamp fixing plate 14, wherein a matching shaft 10 is provided at the upper end of one side of the frame 3, a sprocket 11 is provided on the surface of the matching shaft 10, an ear-type chain 9 is provided on the surface of the sprocket 11, a clamp fixing plate 14 is provided at the upper end of the ear-type chain 9, and a clamp body 8 is provided at the upper end of the clamp fixing plate 14.

[0023] By adopting the above technical solution, a sprocket 11 is used in combination with an ear-type chain 9, and 30 clamp fixing plates 14 are installed on the ear-type chain 9. One side of the sprockets 11 on both sides is a driving design, and the conveying mechanism 2 is operated by driving the coupling shaft 10 through a speed-regulating motor, and the other side is a follower design, and the tension of the ear-type chain 9 can be adjusted through the coupling shaft 10.

[0024] Specifically, U-shaped bearings 12 are symmetrically arranged on both sides of the bottom end of the fixture fixing plate 14 , and an optical axis guide rail 13 is arranged on one side of the U-shaped bearing 12 .

[0025] By adopting the above technical solution, a U-shaped bearing 12 is installed on each side of the clamp fixing plate 14, and hard chrome optical axis guide rails 13 are installed on both sides of the support frame. The U-shaped bearing 12 fits in the optical axis guide rail 13 and rotates to ensure the straightness and support rigidity of the clamp fixing plate 14.

[0026] Specifically, a driving wheel 15 is disposed inside the grinding head 4, a grinding wheel 18 is disposed on one side of the driving wheel 15, a sanding belt 17 is disposed between the driving wheel 15 and the grinding wheel 18, and a motor 22 is disposed on one side surface of the grinding head 4 corresponding to the driving wheel 15.

[0027] By adopting the above technical solution, it is ensured that the sanding belt 17 can stably and continuously grind the surface of the workpiece, thereby improving the use quality of the equipment.

[0028] Specifically, a tensioning wheel 16 is provided inside the grinding head 4 corresponding to the sanding belt 17, and a tensioning cylinder 20 is provided on the surface of the grinding head 4 corresponding to the tensioning wheel 16.

[0029] By adopting the above technical solution, the tension of the sanding belt 17 can be conveniently adjusted to ensure the grinding quality of the workpiece and improve the bonding effect.

[0030] Specifically, a bearing seat 21 is provided at the bottom end of the motor 22, and a floating mechanism 19 is provided on one side of the grinding head 4.

[0031] By adopting the above technical solution, the floating mechanism 19 can adjust the use angle of the grinding head so as to grind workpieces of different heights, thereby improving the applicability of the equipment.

[0032] Working principle and use process of the utility model: When the utility model is in use, the staff inserts the automobile door hinges into the surface of the fixture body 8 in sequence, and then drives the sprocket 11 to rotate through the matching shaft 10, and at the same time, the ear-type chain 9 rotates to send the workpiece to the bottom ends of the grinding head 1 4 and the grinding head 2 5, and drives the driving wheel 15 to rotate through the motor 22, and makes the sanding belt 17 rotate to grind and remove the oxide scale, flash and burrs on the surface of the workpiece, and the processed workpiece automatically falls into the blanking chute 6 at the tail end of the frame 3 under the action of gravity when it is transported to the inside of the blanking chute 6.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A belt sander for automobile door hinges, comprising a frame, Features: A conveying mechanism is arranged at the upper end of the frame, a feeding trough is arranged at one end of the conveying mechanism, a discharge trough is arranged at the other end of the conveying mechanism, a grinding head 1 is arranged at the upper end of the conveying mechanism, a grinding head 2 is arranged on one side of the grinding head 1, and a grinding chip collection box is arranged inside the bottom end of the frame.

2. A belt sander for automobile door hinges according to claim 1, Features: The conveying mechanism includes a clamp body, an ear-type chain, a matching shaft, a sprocket and a clamp fixing plate, wherein a matching shaft is arranged at the upper end of one side of the frame, a sprocket is arranged on the surface of the matching shaft, an ear-type chain is arranged on the surface of the sprocket, a clamp fixing plate is arranged at the upper end of the ear-type chain, and a clamp body is arranged at the upper end of the clamp fixing plate.

3. A belt sander for automobile door hinges according to claim 2, Features: U-shaped bearings are symmetrically arranged on both sides of the bottom end of the fixture fixing plate, and an optical axis guide rail is arranged on one side of the U-shaped bearing.

4. A belt sander for automobile door hinges according to claim 1, Features: A driving wheel is arranged inside the grinding head 1, a grinding wheel is arranged on one side of the driving wheel, an abrasive belt is arranged between the driving wheel and the grinding wheel, and a motor is arranged on one side surface of the grinding head 1 corresponding to the driving wheel.

5. A belt sander for automobile door hinges according to claim 4, Features: A tensioning wheel is arranged inside the grinding head 1 corresponding to the sanding belt, and a tensioning cylinder is arranged on the surface of the grinding head 1 corresponding to the tensioning wheel.

6. A belt sander for automobile door hinges according to claim 4, Features: A bearing seat is arranged at the bottom end of the motor, and a floating mechanism is arranged at one side of the grinding head.

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