A deburring device for processing automobile parts

Abstract

The invention discloses a deburring device for processing automobile parts, and relates to the technical field of automobile parts processing. The deburring device comprises a frame and a grinding wheel mounted on the frame, wherein bearing steps and limiting parts are arranged at both axial ends of the grinding wheel, a bearing plate for bearing a workpiece and whose upper surface is adapted to the surface of a burr position of the workpiece is arranged between two sets of guide frames, an avoidance hole for avoiding the grinding wheel is opened at the middle position of the bearing plate, a coaxial mounting shaft is arranged on both sides of the bearing plate along the axial direction of the grinding wheel, an adjusting wheel whose outer diameter surface slides with the bearing step is fixedly connected to the mounting shaft, and the deburring device for processing automobile parts, by arranging a bearing plate and an adjusting wheel which can rotate and be replaced according to different workpieces on the basis of the grinding wheel, so that the surface of the workpiece is always in a fitted state, and further, when the workpiece rotates, there is no need for workers to observe and feel the grinding position with naked eyes, thereby effectively avoiding the problem of over-grinding.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a deburring device for automobile parts processing. Background Art

[0002] In the production and processing of automobiles, various parts are used. The existing automobile parts are mainly divided into three categories: die castings, injection moldings and stamping sheet metal parts. In the production of die castings, due to the unique design of the parting surface, pouring runner and slag bag of the mold structure, burrs will be generated on the surface of the parts when the automobile parts are produced. The burrs generated on the parting surface are very fragile and can be easily handled, such as shot blasting. However, the connection between the runner and the slag bag and the parts is manually knocked off after production. After knocking off, burrs that are difficult to handle will be generated on the surface of the parts. The existing method is mainly manual through pneumatic Whether it is an electric file or a grinder, no matter which tool is used, the depth and range of grinding are all observed and felt by the naked eye. If you are not careful, you may over-grind, commonly known as "lack of meat", which affects the quality of the product. On the other hand, during grinding, because the distance between the workpiece and the grinding equipment needs to be kept at all times to prevent a large lack of meat, in this case, the surface of the aluminum alloy parts will produce flying cuts under the action of the grinding tool, which will cause damage to the human respiratory tract, that is, the lungs. Existing enterprises only equip workers with an ordinary mask, which has a poor effect on resisting these powdered alloy flying cuts. To this end, we propose a deburring device for processing automotive parts. Summary of the invention

[0003] The object of the present invention is to provide a deburring device for processing automobile parts to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a deburring device for processing automobile parts, comprising a bracket and a grinding wheel installed on the bracket, characterized in that: guide frames rotatably installed on the bracket are provided at both axial ends of the grinding wheel, the guide frames are vertically arranged upward and are provided with bearing steps and limiting parts at the ends, a bearing plate for bearing the workpiece and whose upper surface is adapted to the surface of the workpiece burr is provided between the two groups of guide frames, an avoidance hole for avoiding the grinding wheel is opened in the middle position of the bearing plate, coaxial mounting shafts are provided on both sides of the bearing plate along the axial direction of the grinding wheel, the diameter of the mounting shaft matches the lateral width of the limiting part, and the mounting shaft is slidably arranged in the limiting part along the radial direction of the grinding wheel, an adjusting wheel whose outer diameter surface slides with the bearing step is fixedly connected to the mounting shaft, and when the mounting shaft rotates, the adjusting wheel makes the surface of the workpiece at the avoidance hole always contact with the maximum outer diameter point of the grinding wheel.

[0005] Preferably, the guide frame is divided into a rotating part and a movable part, the rotating part is rotatably mounted on the bracket through a bearing, the load-bearing step and the limiting part are arranged on the movable part, and the movable part is slidably arranged on the rotating part along the axial and radial directions of the grinding wheel.

[0006] Preferably, a limiter is provided between the guide frame and the bracket, and the limiter limits the rotation angle of the guide frame so that the rotation angle of the guide frame is within ±30°.

[0007] Preferably, a bearing pad is provided on the upper surface of the bearing plate, the upper surface of the bearing pad is adapted to the surface of the workpiece at the burr, the cross-sectional line between the lower surface of the bearing pad and the bearing plate is adapted to the outer surface line of the workpiece on the same side of the same cross-section, and the bearing pad slides in the radial section of the grinding wheel through the axis.

[0008] Preferably, the bearing pad is provided with a stepped hole, the bottom hole of the stepped hole is a waist-shaped hole arranged along the axial direction of the grinding wheel, a positioning pin is installed on the bearing plate, and the outer diameter of the positioning pin is adapted to the width of the waist-shaped hole.

[0009] Preferably, the top of the stepped hole of the bearing pad is filled with a filling portion made of the same material as the bearing pad.

[0010] Preferably, two ends of the carrying plate in the length direction are connected with positioning parts, and the positioning parts position the workpiece and limit its sliding relative to the carrying plate.

[0011] Preferably, the bearing pad is made of polyurethane.

[0012] Preferably, the bracket is installed at an angle of 30°.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The present invention provides a rotatable bearing plate and an adjusting wheel on the basis of the grinding wheel and can be replaced according to different workpieces, so that the surface of the workpiece is always in a fitted state, and then when the workpiece rotates, the worker does not need to observe and feel the grinding position with the naked eye, thereby effectively avoiding the problem of over-grinding.

[0015] The present invention provides a bearing pad that can swing within a range, so that the entire burr area can be polished cleanly, and the polishing efficiency is better and more comprehensive;

[0016] Since the present invention does not need to manually control the grinding distance, the face can be kept away from the grinding wheel, thereby preventing metal powder from entering the respiratory system, and effectively reducing the health damage to the workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the workpiece burr structure;

[0018] Figure 2It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 3 for Figure 2 A front view of

[0020] Figure 4 for Figure 3 Schematic diagram of tilted state;

[0021] Figure 5 for Figure 3 Schematic diagram of the middle section;

[0022] Figure 6 for Figure 5 A schematic diagram of the enlarged structure of the middle A area;

[0023] Figure 7 It is a schematic diagram of the overall structure in its unfolded state;

[0024] Figure 8 Schematic diagram of the states of the two structures of the adjusting wheel;

[0025] Fig. 9 A schematic diagram of the motion state of an embodiment of a non-circular adjusting wheel;

[0026] Fig.10 is a schematic diagram of a limiting structure between a bearing pad and a bearing plate;

[0027] Fig.11 This is a schematic diagram of the workpiece being swung left and right while being polished.

[0028] In the figure: 1- bracket; 2- grinding wheel; 3- guide frame; 301- load-bearing step; 302- limiting part; 31- rotating part; 32- movable part; 4- load-bearing plate; 401- avoidance hole; 5- mounting shaft; 501- adjusting wheel; 6- limiting piece; 7- load-bearing pad; 701- stepped hole; 702- filling part. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1 , Figure 2 , Figure 3 , Figure 8 , Fig. 9The present invention provides a technical solution: a deburring device for processing automobile parts, comprising a bracket 1, the bracket 1 is installed on a carrier, the specific structure of the bracket 1 is not limited to the form, and this embodiment is only one of them, which is used to install a grinding wheel 2, and the two end shafts of the grinding wheel 2 are installed on the bracket 1 through bearings, and one end shaft of the grinding wheel 2 is connected to the motor on the carrier through a belt, so that the grinding wheel rotates and grinds, and two groups of guide frames 3 are arranged, which are respectively installed at the two end positions of the bracket 1 at the grinding wheel 2, and the guide frames 3 are arranged upward in the vertical direction, and the vertical direction here is Figure 3 In the description of the state shown, the top of the guide frame 3 is provided with a horizontal bearing step 301, and the limit portion 302 is Figure 3 The lateral width in the state shown is consistent with the diameter of the installation shaft 5. More specifically, the limit portion 302 is a through hole with one side open, which is easier to install than the closed state. The specific method here does not limit the limit portion 302. The limit portion mainly limits the installation shaft 5 in Figure 2 The mounting shaft 5 can move left and right in the state, but the mounting shaft 5 can move synchronously with the guide frame 3, the limiting portion 302 allows the mounting shaft 5 to slide along the radial direction of the grinding wheel 2, and the mounting shaft 5 can rotate relative to the limiting portion 302 in the limiting portion 302.

[0031] The two mounting shafts 5 are coaxial and fixed to the two side walls of the bearing plate 4 respectively. The upper surface of the bearing plate 4 follows the surface shape of the burr area of ​​the workpiece to be polished, such as the polishing area. Figure 1 If the shape of the adjusting wheel 501 is circular, or only the surface portion in contact with the bearing step 301 during rotation is circular, and if the curvature of the lateral curve in the burr area to be polished changes greatly, the adjusting wheel 501 is adaptively changed. Figure 8 The adjusting wheel 5' and the carrying plate 4' are another state different from the full circle state. Fig. 9 It is a schematic diagram of the relative rotation process of the adjusting wheel 501' on the bearing step 301. The function of the adjusting wheel 501 is to always keep the outer surface of the workpiece in contact with the maximum outer diameter point of the grinding wheel 2 when the mounting shaft 5 rotates, so that the grinding wheel 2 can only grind off the burrs but not the surface of the workpiece, thereby producing "lack of meat". The mounting shaft 5 slides radially along the grinding wheel 2 in the limiting portion 302 to cooperate with the adjusting wheel 501 to change the contact position of the workpiece.

[0032] The installation method in which the installation shaft 5 is directly placed in the limiting portion 302 can facilitate the replacement of different carrier plates 4, and at the same time, multiple sets of parallel carrier plates 4 and grinding wheels may need to be set, because the production of a certain part in the factory has a certain production cycle, and different products and burrs at different positions of the same product need to be adapted to different carrier plates 4 and adjustment wheels 5. In addition, because the die-casting mold will adopt a one-mold multi-cavity and slag bag setting for small-sized workpieces, more connecting paths with a thickness of about 1 mm will be generated at the parting line of the workpiece, such as Figure 1 The figure shows the burrs generated when removing the slag bag and the alloy material in the flow channel. When replacing different parts of the overall equipment, only the matching bearing plate 4 and the adjusting wheel 501 need to be replaced, and other parts can still be used, which effectively reduces the cost of use.

[0033] See also Figure 2 and Figure 7 The rotating part 31 rotates around the axis of the grinding wheel 2 and is installed on the bracket 1 through a bearing. A radial connecting plate is arranged on the outer diameter surface of the rotating part 31. The movable part 32 slides on the connecting plate and is positioned. The positioning method can be achieved by adjusting the screw or by setting an adjusting screw at the contact position between the connecting plate and the movable part. The position of the movable part 32 is changed by rotating the adjusting screw. Similarly, the movement of the movable part 32 along the axial direction of the grinding wheel 2 can be arranged in the same way. The movement of the movable part 32 in two directions is used to adapt to the thickness and radial dimensions of different workpieces.

[0034] See also Figure 3 and Figure 4 In the case where the limiter 6 is not provided, the guide frame 3 and the structure thereon will rotate to both sides and contact the bracket 1 due to gravity. In the case where the limiter 302 is a through hole on one side, the installation shaft 5 may even fall off. During use, workers are required to install the installation shaft 5 and adjust the position and then grind it each time. In order to improve the convenience and efficiency of use, the limiter 6 is provided on the guide frame 3 and the bracket 1. Because the mold design standard ensures that the length of the burr in the circumferential direction is not too long, because the installation shaft 5 only needs to rotate a small angle relative to the guide frame 3, the rotation angle α of the guide frame is 60°, which is sufficient to match the burr removal of various non-large workpieces. Figure 3 In the state, it is set symmetrically at ±30° in the vertical direction.

[0035] The limiting member 6 only needs to limit the rotation range of the guide frame 3 , so its specific form is not limited. In this embodiment, the limiting member 6 is provided by providing a protrusion 602 on the bracket 1 and two limiting columns 601 on the rotating part of the guide frame 3 .

[0036] According to specific usage habits, the installation of the bracket 1 is as follows Figure 4In the tilt state shown, the maximum rotation direction of the right side of the guide frame 3 is just in the vertical direction. In the initial stage, the worker only needs to place the workpiece directly on the carrier plate 4 and push it by hand to rotate the guide frame 3. At the same time, the mounting shafts 5 on both sides of the carrier plate 4 will rotate relative to the guide frame 3.

[0037] Thereby, the contact point between the workpiece and the grinding wheel 2 is continuously changed, so that the burrs are ground off, and because of the restriction of the adjusting wheel 501, the grinding wheel 2 will not grind the workpiece, and will not cause "lack of meat".

[0038] See also Figure 2 , Figure 5 , Figure 6 , Figure 7 , Fig.10 and Fig.11 In the case where the bearing pad 7 is not provided, the surface of the workpiece will directly contact the bearing plate 4. The bearing plate 4 needs to withstand artificial pressure, so it needs to be a rigid material. The workpiece is prone to relative sliding on the bearing plate 4. Therefore, the bearing pad 7 is used to increase the static friction force to prevent the relative sliding between the workpiece and the bearing plate 4. Furthermore, the bearing pad 7 is made of polyurethane. Polyurethane is not easy to deform when subjected to small pressure, and is wear-resistant. The static friction between the workpiece and the bearing plate 4 is large. Figure 6 As shown, the highest point N of the cross-section of the grinding wheel 2 is flush with the upper surface of the bearing pad 7 under the same cross-section. The figure is a schematic diagram when the workpiece is the side of a column. For a non-flat curved surface, when the workpiece is on the bearing pad 7, the lowest point under the same cross-section should be in contact with point N, so that the grinding wheel 2 can grind off the burrs without grinding the workpiece body.

[0039] like Fig.11 As shown in Figure A1, the burr has a certain width. Even if the burr area is flat, it will be uneven due to the draft angles on both sides of the parting line. In the case of point contact, the workpiece is only rotated, and the polished area is only linear. Dead corners will appear on both sides. To clean up the dead corners, the workpiece or the grinding wheel 2 needs to be tilted in a small range. Relatively speaking, it is easier to tilt the workpiece, but if the worker controls the tilt angle, the problem of excessive grinding will still occur. Therefore, a bearing pad 7 and a bearing plate 4 are provided so that the two can slide along the action in the state of 5. The cross-sectional line of the contact surface between the two is determined according to the cross-sectional line of the burr area of ​​different workpieces, resulting in the following Fig.11 The process of A1 transforming to A2 is to push the dead end point M2 to Figure 6 N points in Fig.11 In order to facilitate sliding, a receiving hole is provided on the lower surface of the bearing pad 7 or the upper surface of the bearing plate 4, and grease is provided in the receiving hole to facilitate sliding.

[0040] Furthermore, a directional limiter is provided between the bearing plate 4 and the bearing pad 7 so that the bearing pad 7 can only be moved in a certain direction. Fig.10 In the case shown, the device swings and slides left and right, and the position is limited by setting a positioning pin on the bearing plate 4 and setting a stepped hole 701 on the bearing pad 7. The bottom hole of the stepped hole 701 is waist-shaped. Fig.10 The waist-shaped hole of the horizontal length in the state shown is provided with a filling portion 702 to prevent metal fragments from entering the bearing pad 7.

[0041] like Figure 8 As shown, positioning parts 402 are connected at both ends of the length direction of the supporting plate 4. Since the middle area of ​​the supporting plate 4 is to match the surface shape of the workpiece and is generally arc-shaped, positioning parts 402 are set at both ends. The positioning parts 402 are set according to the structural characteristics of different workpieces, such as protruding parts or recessed parts or ribs and reinforcing ribs for positioning, so as to better prevent the workpiece from rotating and quickly place the workpiece correctly on the supporting plate 4.

[0042] Before use, adjust the position of the guide frame 3 according to the workpiece, and install the appropriate adjusting wheel 501 and the supporting plate 4, then drive the grinding wheel 2 to rotate by the motor, and then the worker places the position where the workpiece to be polished needs to be polished on the supporting plate 4, then the worker applies a little external force and pushes the guide frame 3 to rotate. While rotating, the workpiece will also rotate around the axis of the mounting shaft 5 due to the change in position, so as to polish different positions. During the pushing process, a little external force is also applied to make the workpiece swing left and right, so as to polish the burrs in the dead corner area. The grinding process can be repeated several times to facilitate a cleaner grinding.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] 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 deburring device for processing automobile parts, comprising a bracket (1) and a grinding wheel (2) mounted on the bracket (1), characterized in that: A guide frame (3) rotatably mounted on the bracket (1) is provided at both axial ends of the grinding wheel (2); the guide frame (3) is vertically arranged upward and is provided with a bearing step (301) and a stopper (302) at the end; a bearing plate (4) for bearing a workpiece and having an upper surface adapted to the surface of the workpiece burr is provided between the two sets of guide frames (3); a avoidance hole (401) for avoiding the grinding wheel (2) is provided in the middle of the bearing plate (4); and the bearing plate (4) is provided at both axial ends of the grinding wheel (2). A coaxial mounting shaft (5) is provided on the side, the diameter of the mounting shaft (5) matches the transverse width of the limiting portion (302), and the mounting shaft (5) is slidably arranged in the limiting portion (302) along the radial direction of the grinding wheel (2), and an adjusting wheel (501) whose outer diameter surface slides with the bearing step (301) is fixedly connected to the mounting shaft (5), and when the mounting shaft (5) rotates, the adjusting wheel (501) makes the surface of the workpiece at the avoidance hole (401) always contact the maximum outer diameter point of the grinding wheel (2); The guide frame (3) is divided into a rotating part (31) and a movable part (32); the rotating part (31) is rotatably mounted on the bracket (1) via a bearing; the bearing step (301) and the limiting part (302) are arranged on the movable part (32); and the movable part (32) is bidirectionally slidably arranged on the rotating part (31) along the axial direction and radial direction of the grinding wheel (2).

2. A deburring device for automobile parts processing according to claim 1, characterized in that: A limiting member (6) is provided between the guide frame (3) and the bracket (1), and the limiting member (6) limits the rotation angle of the guide frame (3), so that the rotation angle of the guide frame (3) is within ±30°.

3. The deburring device for automobile parts processing according to claim 1, characterized in that: A bearing pad (7) is provided on the upper surface of the bearing plate (4), the upper surface of the bearing pad (7) is matched with the surface of the workpiece at the burr position, the cross-sectional line between the lower surface of the bearing pad (7) and the bearing plate (4) is matched with the outer surface line of the workpiece on the same side of the same cross-sectional plane, and the bearing pad (7) slides in the radial cross-sectional plane of the grinding wheel (2) passing through the axis.

4. A deburring device for automobile parts processing according to claim 3, characterized in that: The bearing pad (7) is provided with a stepped hole (701), the bottom hole of the stepped hole (701) being a waist-shaped hole arranged along the axial direction of the grinding wheel (2), and a positioning pin is installed on the bearing plate (4), and the outer diameter of the positioning pin is adapted to the width of the waist-shaped hole.

5. A deburring device for automobile parts processing according to claim 4, characterized in that: The top of the stepped hole (701) of the bearing pad (7) is filled with a filling portion (702) made of the same material as the bearing pad (7).

6. The deburring device for automobile parts processing according to claim 1, characterized in that: Positioning parts (402) are connected to both ends of the bearing plate (4) in the length direction, and the positioning parts (402) position the workpiece and restrict the workpiece from sliding relative to the bearing plate (4).

7. A deburring device for automobile parts processing according to claim 3, characterized in that: The material of the bearing pad (7) is polyurethane.

8. The deburring device for automobile parts processing according to claim 2, characterized in that: The bracket (1) is installed at an angle of 30°.

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