Full-automatic grinding equipment for steering wheel

Abstract

The invention belongs to the technical field of automobile steering wheel machining, and particularly relates to steering wheel full-automatic grinding equipment which comprises a workbench, an electrical cabinet, a discharging unit, a grabbing unit and a grinding unit are arranged in the workbench, steering wheels are manually placed on a feeding trolley in sequence, and a mechanical arm automatically grabs the steering wheels and carries the steering wheels to be ground; when the manipulator grabs one of the steering wheels on the feeding trolley, the steering wheels can be pushed to the designated position through the air cylinder, the positions grabbed by the manipulator each time are the same, the manipulator places the steering wheels on the discharging trolley after polishing is completed, and after polishing of a batch of steering wheels is completed, the discharging trolley is manually pushed out for material changing. The steering wheel can be automatically grabbed, the outer wall and the inner wall of the steering wheel can be automatically polished, the polished steering wheel can be automatically placed, and a set of automatic polishing process is formed; compared with the prior art, the grinding efficiency and the grinding effect are improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile steering wheel processing, and more specifically, to a full-automatic polishing device for a steering wheel. Background Art

[0002] The car steering wheel is one of the important parts of a car. During the production process, the steering wheel frame needs to be polished and other processing methods.

[0003] For example, authorization announcement number CN110936251B discloses a device for grinding a car steering wheel, which includes a square box, on the lower inner wall of which a motor is fixedly mounted, and on the output shaft of the motor is fixedly mounted a fixing plate, the steering wheel is placed on the fixing plate, and the skeleton in the middle of the steering wheel is placed between two vertical rods. When the output shaft of the motor drives the fixing plate to rotate, the steering wheel is fixed to the fixing plate by two vertical rods and a telescopic rod, and the steering wheel rotates together with the fixing plate. The output shaft of the motor drives the connecting rod to rotate, and the threaded column installed at the left end of the connecting rod moves to the right in the connecting column, which can push the movable block to move to the left in the square groove, and push the grinding block toward the direction of the steering wheel. When pushed to the leftmost end, the U-shaped groove on the grinding block fits the shape of the steering wheel.

[0004] In the above, each time the steering wheel is polished, the steering wheel is placed between the two vertical rods and then polished. The steering wheels need to be taken to the polishing position one by one manually, and then polished. This process from placing the steering wheel to polishing the steering wheel and then placing the polished steering wheel takes a lot of time, which reduces the efficiency and progress of steering wheel polishing. In this patent, during the grinding process, the inner and outer edges of the steering wheel are grinded through the U-shaped groove. For example, a three-spoke steering wheel has three through holes. At this time, the grinding block cannot completely grind the inner walls of the three through holes, but can only grind along the inner walls of the through holes and the outer wall of the entire steering wheel, which reduces the grinding effect of the steering wheel. Summary of the invention

[0005] In view of the deficiencies in the prior art, an object of the present invention is to provide a fully automatic steering wheel grinding device with improved grinding efficiency and grinding effect.

[0006] To achieve the above object, the present invention provides the following technical solutions: A fully automatic steering wheel grinding device comprises a workbench, a guardrail is arranged on the workbench, the guardrail is connected to the workbench, an electrical cabinet, a material discharge unit, a material grabbing unit and a grinding unit are arranged in the workbench, An electrical cabinet, including a control circuit, which is electrically connected to the material discharge unit, the material grabbing unit and the grinding unit; A material unloading unit, comprising a loading trolley for placing unpolished steering wheels and a unloading trolley for placing polished steering wheels; The material grabbing unit includes a manipulator and a gripper for grabbing the steering wheel, and the gripper is placed on the output end of the manipulator; The grinding unit comprises a belt grinder for grinding the outer wall of the steering wheel and an abrasive piece for grinding the inner wall of the steering wheel, wherein the abrasive piece is arranged above the belt grinder.

[0007] The present invention is further configured as follows: the abrasive piece includes a loading plate and a grinding rod, one end of the grinding rod is fixed to the loading plate, a plurality of protrusions are provided on the grinding rod, the grinding rod can pass through the through hole on the steering wheel and the protrusions can grind the inner wall of the through hole.

[0008] The present invention is further configured as follows: the loading trolley and the unloading trolley are both provided with a supporting frame and several groups of feeding components, the feeding components are placed on the supporting frame, the feeding components include a fixed plate, a placing rod and a support plate, one side of the fixed plate, one end of the placing rod and one side of the support plate are all connected to the supporting frame, the fixed plate is placed above the support plate, the placing rod is placed between the fixed plate and the support plate, and limit blocks are provided on the fixed plate and the support plate.

[0009] The present invention is further configured as follows: a cylinder for pushing the steering wheel is also provided in the support bracket on the loading vehicle, and the cylinder is placed between the fixing plate and the storage rod.

[0010] The present invention is further configured as follows: the fixing plate and the supporting plate are both provided with a plurality of clamping blocks, and the clamping blocks are made of rubber.

[0011] The present invention is further configured as follows: the gripping hand is provided with a positioning pin extending into the airbag release hole on the steering wheel and three clamping plates surrounding the outer side of the positioning pin, and the clamping plate is provided with an arc panel bent toward the positioning pin.

[0012] The present invention is further configured as follows: a positioning camera is also provided on the gripping hand.

[0013] By adopting the above technical solution, the beneficial effects of the present invention are: The steering wheels are manually placed on the loading cart in order and arranged neatly. The robot automatically grabs the materials and takes the steering wheels for grinding. When the robot grabs one of the steering wheels on the loading cart, the cylinder can push the steering wheel to the specified position, so that the position grabbed by the robot is the same each time. After grinding, the robot puts the steering wheel on the unloading cart. When a batch of steering wheels is all ground, the unloading cart is manually pushed out for material replacement. Since the steering wheels can be automatically grabbed, the outer and inner walls of the steering wheels can be automatically ground, and the ground steering wheels can be automatically placed, a set of automated grinding processes is formed, thereby improving the grinding efficiency and grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A three-dimensional diagram of an embodiment of the present invention; Figure 2 A three-dimensional diagram of the loading vehicle of the present invention; Figure 3 It is a structural schematic diagram of the grinding unit of the present invention; Figure 4 It is a partial schematic diagram of the material grabbing unit of the present invention.

[0015] Workbench 1, electrical cabinet 2, loading car 3, unloading car 4, manipulator 5, gripper 6, Belt sander 7, abrasive part 8, guardrail 101, sliding door 102, support frame 301, feeding assembly 302, fixing plate 303, storage rod 304, support plate 305, limit block 306, cylinder 307, clamping block 308, fastening plate 309, positioning pin 601, clamping plate 602, arc panel 603, positioning camera 604, frame plate 701, loading plate 801, and sanding rod 802. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] like Figures 1 to 4 As shown, A is a steering wheel. The fully automatic steering wheel grinding equipment includes a workbench 1, on which a guardrail 101 is provided. The guardrail 101 is connected to the workbench 1, and two sliding doors 102 are provided on one side of the guardrail 101. The sliding doors 102 are hinged to the guardrail 101. When the sliding doors 102 are opened, a person can enter the workbench 1 to complete maintenance or replace the processed workpiece.

[0019] The electrical cabinet 2 includes a control circuit, which is connected to the discharge unit, the grabbing unit and the grinding unit through wires. The control circuit ensures that the wires can flow smoothly. When the control circuit is running, the control circuit can drive the discharge unit, the grabbing unit and the grinding unit to operate normally.

[0020] The unloading unit includes a loading trolley 3 and a unloading trolley 4. The loading trolley 3 is used to place the unpolished steering wheel, and the unloading trolley 4 is used to place the polished steering wheel. The steering wheel is a three-spoke steering wheel, and there are three points on the outer ring of the three-spoke steering wheel connected to the middle center of the circle, so that three through holes appear on the steering wheel. The three through holes are a top through hole one and two through holes two placed below through hole one.

[0021] The loading trolley 3 and the unloading trolley 4 are both equipped with a support frame 301 and four sets of feeding components 302. Through the four groups of feeding components 302, the feeding components 302 can hold a larger number of steering wheels. Later, the steering wheels on the four groups of feeding components 302 can be grabbed in turn without manually placing them one by one, thereby improving work efficiency.

[0022] The feeding assembly 302 includes a fixed plate 303, a placement rod 304 and a support plate 305. One side of the fixed plate 303, one end of the placement rod 304 and one side of the support plate 305 are all fixed to the support frame. The placement rod 304 has two, the fixed plate 303 is above the support plate 305, and the placement rod 304 is placed between the fixed plate 303 and the support plate 305.

[0023] A cylinder 307 for pushing the steering wheel is also installed in the support frame 301 on the loading car 3. The cylinder 307 is placed between the fixed plate 303 and the storage rod 304. Blocks 308 are installed on the fixed plate 303 and the support plate 305. Since the block 308 is made of rubber, it is elastic.

[0024] The bottom surface of the steering wheel is placed between adjacent blocks 308 on the support plate 305, the two through holes 2 on the steering wheel pass through the two corresponding storage rods 304 respectively, and the through hole 1 on the steering wheel passes through the fixed plate 303, so that the top surface of the inner wall of the through hole 1 of the steering wheel is in contact with the outer wall of the fixed plate 303, and the steering wheel is hung on the fixed plate 303.

[0025] Limit blocks 306 are installed on the top surfaces of the support plate 305 and the fixed plate 303. The limit blocks 306 are fixed to the fixed plate 303 and the support plate 305. When the cylinder 307 pushes the steering wheel, the outermost steering wheel will conflict with the limit blocks 306, so that the steering wheel will not fall off.

[0026] A fastening plate 309 is also installed on the bottom surface of the support plate 305. The fastening plate 309 is integrally formed with the support plate 305. The fastening plate 309 is triangular in shape. A triangular connecting groove is opened on the fastening plate 309. Reinforcing ribs are installed in the connecting groove. Both ends of the reinforcing ribs are welded to the inner wall of the connecting groove. Since the support plate 305 needs to bear the weight of five steering wheels, its bearing capacity can be increased through the design between the fastening plate 309 and the reinforcing ribs.

[0027] The gripper 6 on the material grabbing unit, through the operation of the manipulator 5, is equipped with a positioning pin 601 and three clamping plates 602 surrounding the outer side of the positioning pin 601, and the clamping plates 602 have three. Through the operation of the manipulator 5, the three clamping plates 602 on the gripper 6 expand outward, so that the three clamping plates 602 pass through the through hole 1 and the through hole 2 in sequence, and the steering wheel is grasped. Since the manipulator 5 is equipped with a driving motor, the gripper 6 can be rotated by the driving motor, and the gripper 6 can rotate with the steering wheel.

[0028] There is an airbag release hole on the steering wheel. When grabbing, the positioning pin 601 is inserted into the airbag release hole on the steering wheel to limit the steering wheel, and then it is clamped by the clamping plate 602. The clamping plate 602 is equipped with an arc panel 603 bent toward the positioning pin 601, so that during the grabbing process, the steering wheel is not easily displaced and is more stable. A positioning camera 604 is also installed on the gripper 6. The positioning camera 604 is used to detect whether the gripper 6 correctly passes through the through hole 1 and the through hole 2 and grabs it. If the gripper 6 does not grab the steering wheel correctly, the positioning camera 604 senses it and the gripper 6 stops operating. Otherwise, if the gripper 6 grabs the steering wheel correctly, the next step of grinding the steering wheel is performed.

[0029] A frame plate 701 is also installed on the grinding unit. The frame plates 701 have two, and the belt sander 7 is placed between the two frame plates 701. The belt sander 7 is also installed with a rotating motor. The output end of the rotating motor is connected to the belt sander 7. The gripper 6 places the steering wheel on the belt sander 7. At this time, the steering wheel is rotating, and the outer wall of the steering wheel is in contact with the outer surface of the rubber wheel of the belt sander 7. When the rotating motor is running, the belt sander 7 rotates, so that the rubber wheel of the belt sander grinds the outer wall of the steering wheel. A top plate is also installed on the frame plate 701. The abrasive member 8 on the grinding unit is placed on the top plate, and the abrasive member 8 is also placed above the belt sander 7.

[0030] The abrasive member 8 includes a loading plate 801 and a grinding rod 802. One end of the grinding rod 802 is fixed to the loading plate 801. The grinding rod 802 is provided with a plurality of protrusions, which grind the inner wall surfaces of through hole 1 and through hole 2 on the steering wheel by friction.

[0031] Working principle: The control circuit in the electrical cabinet 2 is running, and the manipulator 5 grabs the outermost steering wheel on the loading cart 3 through the gripper 6. The positioning pin 601 on the gripper 6 will extend into the airbag release hole on the steering wheel on the loading cart 3. The three clamping plates 602 will grip the steering wheel airbag to ensure the accuracy and strength of the manipulator 5 in grabbing the steering wheel, and bring the steering wheel to the grinding unit.

[0032] When a steering wheel on the loading vehicle 3 is taken away by the manipulator 5, the cylinder 307 is operated, and the cylinder 307 pushes the steering wheel, and the steering wheels move outward in turn, so that the manipulator 5 can grab the outermost steering wheel each time. When grinding the outer wall of the steering wheel, after the gripper 6 grabs the steering wheel, the manipulator 5 moves with the steering wheel until the steering wheel moves onto the sanding belt of the sanding machine 7, and makes the outer wall of the steering wheel fit with the sanding belt of the sanding machine 7, and then drives the sanding machine 7, and at the same time, the gripper 6 rotates with the steering wheel, so that the sanding machine 7 grinds the outer wall of the steering wheel.

[0033] When the inner wall of the steering wheel is polished, the manipulator 5 drives the gripper 6 to move, and makes the polishing rod 802 pass through the through hole 1 on the steering wheel, and the polishing rod 802 fits against the inner wall of the arc-shaped edge of the through hole 1 on the steering wheel. Then the driving motor is started to make the steering wheel rotate back and forth, so that the polishing rod 802 polishes the arc-shaped surface on the through hole 1.

[0034] By moving the manipulator 5 up and down, the gripper 6 can move the steering wheel up and down and left and right, so that the polishing rod 802 can be polished along the two right-angled surfaces on the through hole 1.

[0035] After polishing the through hole 1 on the steering wheel, the steering wheel is separated from the sanding belt of the sanding machine 7 by the manipulator 5, the polishing rod 802 is pulled out from the through hole 1, the polishing position is adjusted, and the polishing of the through hole 2 begins: after adjusting the steering wheel, the polishing rod 802 passes through the first through hole 2 on the steering wheel, the steering wheel is placed on the sanding belt of the sanding machine 7, and the polishing rod 802 polishes the inner wall of the first through hole 2; after the polishing is completed, the steering wheel is separated from the polishing rod 802 by the manipulator 5, and the second through hole 2 is sent to the polishing position, and the second through hole is polished. By polishing the inner walls of through hole 1 and the two through holes 2, the polishing of the inner wall of the steering wheel can be achieved.

[0036] After grinding is completed, the manipulator 5 places the steering wheel on the unloading trolley 4, the fixed plate 303 on the unloading trolley 4 passes through a through hole of the steering wheel, and the two placement rods 304 on the unloading trolley 4 respectively pass through the through hole two on the steering wheel, and the outer wall of the steering wheel is placed on the support plate 305 on the unloading trolley 4. After placement, the manipulator 5 goes to the loading trolley 3 to grab a new steering wheel to be polished. After all the steering wheels are polished, the unloading trolley 4 is manually pushed out, and after taking the steering wheels, the unloading trolley 4 is placed back to its original position, and then the new 20 steering wheels to be polished are placed on the new loading trolley 3, and a new first round of cycle is carried out.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic steering wheel grinding device, characterized in that: Includes workbench (1), A guardrail (101) is provided on the workbench (1), and the guardrail (101) is connected to the workbench (1). The workbench (1) is provided with an electrical cabinet (2), a material discharge unit, a material grabbing unit and a grinding unit. An electrical cabinet (2), comprising a control circuit, wherein the control circuit is electrically connected to the material discharge unit, the material grabbing unit and the grinding unit; A material unloading unit, comprising a loading cart (3) for placing unpolished steering wheels and a unloading cart (4) for placing polished steering wheels; The material grabbing unit comprises a manipulator (5) and a gripping hand (6) for grabbing the steering wheel, wherein the gripping hand (6) is placed on the output end of the manipulator (5); The grinding unit comprises a belt grinder (7) for grinding the outer wall of the steering wheel and an abrasive piece (8) for grinding the inner wall of the steering wheel, wherein the abrasive piece (8) is placed above the belt grinder (7).

2. The fully automatic steering wheel grinding equipment according to claim 1, characterized in that: The abrasive member (8) comprises a loading plate (801) and a grinding rod (802); one end of the grinding rod (802) is fixed to the loading plate (801); a plurality of protrusions are provided on the grinding rod (802); the grinding rod (802) can pass through a through hole on the steering wheel and the protrusions can grind the inner wall of the through hole.

3. The fully automatic steering wheel grinding equipment according to claim 1, characterized in that: The loading trolley (3) and the unloading trolley (4) are both provided with a support frame (301) and a plurality of groups of feeding components (302). The feeding components (302) are placed on the support frame (301). The feeding components (302) include a fixing plate (303), a placing rod (304) and a supporting plate (305). One side of the fixing plate (303), one end of the storage rod (304) and one side of the supporting plate (305) are all connected to the supporting frame (301). The fixing plate (303) is placed above the supporting plate (305), the storage rod (304) is placed between the fixing plate (303) and the supporting plate (305), and both the fixing plate (303) and the supporting plate (305) are provided with a limit block (306).

4. The fully automatic steering wheel grinding equipment according to claim 3, characterized in that: A cylinder (307) for pushing the steering wheel is also provided in the support frame (301) on the loading vehicle (3), and the cylinder (307) is placed between the fixing plate (303) and the storage rod (304).

5. The fully automatic steering wheel grinding equipment according to claim 4, characterized in that: A plurality of clamping blocks (308) are provided on the fixing plate (303) and the supporting plate (305), and the clamping blocks (308) are made of rubber.

6. The fully automatic steering wheel grinding equipment according to claim 1, characterized in that: The gripping hand (6) is provided with a positioning pin (601) extending into the airbag release hole on the steering wheel and three clamping plates (602) surrounding the outer side of the positioning pin (601), and the clamping plate (602) is provided with an arc panel (603) bent towards the positioning pin (601).

7. The fully automatic steering wheel grinding device according to claim 6, characterized in that: The gripping hand (6) is also provided with a positioning camera (604).

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