Knuckle blank polishing device

Abstract

The utility model discloses a knuckle blank polishing device, and relates to the technical field of machining. The grinding device comprises a base, a grinding barrel, a cover plate, a lifting motor, hanging rods and an air cylinder, the upper end of the base is rotationally connected with the grinding barrel, the cover plate covers the upper end of the grinding barrel, and the hanging rods distributed in an annular array are vertically inserted into the cover plate in a penetrating mode; an end head is fixed at the upper end of the suspender, the lower end of the suspender downwards penetrates through the cover plate and is fixedly provided with a plug, a lifting hook is arranged below the plug, and a spring sleeves the suspender between the end head and the upper end surface of the cover plate; a lifting motor is further fixed to the center of the upper end of the cover plate, an output shaft of the lifting motor faces upwards and is fixedly provided with a base plate, and a pressing wheel is fixed to one end of the base plate. Through the arrangement of the grinding material barrel, the driving motor, the lifting motor, the pressing wheel, the cover plate and the hanging rod, the problems that a conventional grinding device cannot comprehensively and uniformly grind irregular steering knuckles, and sweeps possibly splash during grinding are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing, in particular to a steering knuckle blank grinding device. Background Art

[0002] The steering knuckle, also known as the "ram's horn", is one of the important parts in the steering axle of the car. It can make the car run stably and sensitively transmit the driving direction. The function of the steering knuckle is to transmit and bear the load of the front of the car, support and drive the front wheel to rotate around the kingpin to turn the car. When the car is running, it is subjected to variable impact loads, so it is required to have high strength. In the production process, when the steering knuckle is in the blank state, it is indispensable to grind it, but there are the following disadvantages in the actual grinding process:

[0003] First, because most conventional grinding devices are driven by a motor to rotate a grinding structure such as a grinding disc, the grinding disc rotates at high speed and contacts the surface of the workpiece for grinding, but because the steering knuckle is an irregular structure, this makes it impossible for conventional grinding devices to be applied, and it is even more impossible to evenly grind the surface of the steering knuckle;

[0004] Secondly, under normal grinding conditions, a large amount of waste chips will be splashed, affecting the surrounding environment. Utility Model Content

[0005] The utility model aims to provide a steering knuckle blank grinding device, which solves the problems that conventional grinding devices cannot perform comprehensive and uniform grinding of irregular steering knuckles and that waste chips may splash during grinding by arranging an abrasive barrel, a driving motor, a lifting motor, a pressure wheel, a cover plate, and a suspension rod.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model is a steering knuckle blank grinding device, comprising a base, an abrasive barrel, a cover plate, a lifting motor, a suspension rod and a cylinder. The upper end of the base is rotatably connected to the abrasive barrel, and a large gear is fixed to the lower part of the outer periphery of the abrasive barrel.

[0008] The upper end cover of the abrasive barrel is provided with a cover plate, and the cover plate is vertically penetrated and inserted with hanging rods distributed in a circular array; the upper end of the hanging rod is fixed with an end head, the lower end of the hanging rod downwardly penetrates the cover plate and is fixed with a plug, and a hook is provided below the plug, and a spring is provided on the outer sleeve of the hanging rod between the end head and the upper end surface of the cover plate;

[0009] A lifting motor is also fixed at the center of the upper end of the cover plate, the output shaft of the lifting motor faces upward and is fixed with a base plate, and a pressure wheel is fixed at one end of the base plate;

[0010] An inverted L-shaped bracket is also fixed on the base outside the abrasive barrel, and a driving motor is fixed on the horizontal part of the bracket.

[0011] Furthermore, the output shaft of the driving motor passes through the horizontal part of the bracket downward and is fixed with a small gear, and the small gear and the large gear are on the same horizontal line, and the small gear and the large gear are meshed and connected.

[0012] Furthermore, two cylinders are fixed on the base outside the large gear, two ear plates are fixed on the outer periphery of the cover plate, and the piston rods at the telescopic ends of the cylinders extend upward and are fixedly connected to the bottom surfaces of the ear plates above them.

[0013] Furthermore, a thread groove is provided at the bottom end of the plug, and a thread section is provided at the upper part of the hook, and the thread section is screwed into the thread groove.

[0014] Furthermore, the radii of the end head and the plug are equal to and larger than the radius of the suspension rod, and the two ends of the spring are fixedly connected to the opposite surfaces of the end head and the cover plate respectively.

[0015] Furthermore, the pressing wheel is pressed above a suspension rod located below its central axis.

[0016] Furthermore, the rotation path of the pressure wheel coincides with the annular array distribution path of the suspension rods when viewed from a top-down perspective.

[0017] The utility model has the following beneficial effects:

[0018] The utility model solves the problem that conventional grinding devices cannot perform comprehensive and uniform grinding of irregular steering knuckles by arranging an abrasive barrel, a driving motor, a lifting motor, a pressure wheel, a cover plate, and a suspension rod; when grinding a steering knuckle blank, firstly, the cover plate is driven to rise by a cylinder so that the hook under the cover plate is exposed from the abrasive barrel, then the steering knuckle blank to be ground is sequentially sleeved on the hook, then the cover plate is restored to its position so that the hook and the steering knuckle blank are both in the abrasive in the abrasive barrel, then the motor is driven to work, and the large gear and the small gear are engaged. The meshing of the wheels drives the abrasive barrel to rotate. At this time, the steering knuckle blank does not move, but the abrasive barrel and the abrasive inside it rotate, so that a large amount of abrasive will continuously contact the steering knuckle blank, causing it to be continuously polished. At the same time, the lifting motor will also drive the pressure wheel to rotate, and the pressure wheel will continuously press each pressure rod, causing each pressure rod to drop one by one, thereby causing the steering knuckle blank suspended by the hook under the pressure rod to drop. While the abrasive rotates and contacts, it also makes the steering knuckle blank contact with deep-level abrasives, making it polished more evenly and thoroughly, and the overall polishing is completed at one time.

[0019] The utility model solves the problem of waste chips splashing during grinding by arranging an abrasive barrel and a cover plate; the entire grinding process is in the abrasive barrel, and the top of the abrasive barrel is closed and covered by the cover plate, so that waste chips will not splash out during the entire grinding process, thereby protecting the surrounding environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0021] Figure 1 It is a stereoscopic diagram of a steering knuckle blank grinding device;

[0022] Figure 2 The connection diagram of the abrasive barrel and the base;

[0023] Figure 3 It is the connection diagram of the cover plate, lifting motor and suspension rod;

[0024] Figure 4 for Figure 3 The upward-looking state diagram;

[0025] Figure 5 This is a diagram of the disassembly of the plug below the boom and the hook after cutting.

[0026] Reference numerals:

[0027] 1. Base; 101. Bracket; 2. Abrasive barrel; 201. Big gear; 3. Cover plate; 301. Ear plate; 4. Lifting motor; 401. Base plate; 402. Pressure wheel; 5. Hanging rod; 501. End; 502. Spring; 503. Plug; 5031. Thread groove; 504. Hook; 5041. Thread segment; 6. Driving motor; 601. Small gear; 7. Cylinder. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-5 As shown, the utility model is a steering knuckle blank grinding device, comprising a base 1, an abrasive barrel 2, a cover plate 3, a lifting motor 4, a suspension rod 5 and a cylinder 7. The upper end of the base 1 is rotatably connected with the abrasive barrel 2, and a large gear 201 is fixed to the lower part of the outer periphery of the abrasive barrel 2; the base 1 is used as a mounting carrier for mounting various components, and the abrasive barrel 2 is used as the main grinding place, and a large amount of abrasive for grinding is filled in the abrasive barrel 2;

[0030] The upper end cover of the abrasive barrel 2 is provided with a cover plate 3, and the cover plate 3 is vertically penetrated and inserted with hanging rods 5 distributed in a circular array; the upper end of the hanging rod 5 is fixed with an end head 501, the lower end of the hanging rod 5 downwardly penetrates the cover plate 3 and is fixed with a plug 503, and a hook 504 is provided below the plug 503, and a spring 502 is provided on the outer sleeve of the hanging rod 5 between the end head 501 and the upper end surface of the cover plate 3;

[0031] The cover plate 3 is used to distribute the upper end of the abrasive barrel 2, and a large number of suspension rods 5 are inserted in the cover plate 3. The suspension rods 5 are suspended in the air under the action of the springs 502. The upper end of the suspension rods 5 is assisted by the end head 501 to install the springs 502 and limit the position. The lower end of the suspension rods 5 is installed with a plug 503 for installing a hook 504, and the plug 503 is located below the cover plate 3. When suspending the steering knuckle blank, align the through hole on the steering knuckle blank with the opening on the hook 504 and put it into it, and then rotate the hook 504 upward so that the opening part on the hook 504 is blocked as much as possible by the lower end of the plug 503, so as to prevent the steering knuckle blank from falling off the hook 504 during the subsequent grinding operation;

[0032] A lifting motor 4 is also fixed at the center of the upper end of the cover plate 3, the output shaft of the lifting motor 4 faces upward and is fixed with a base plate 401, and a pressure wheel 402 is fixed at one end of the base plate 401;

[0033] The lifting motor 4 works to drive the base plate 401 to rotate, thereby rotating the pressure wheel 402. The pressure wheel 402 will continuously press each pressure rod, causing each pressure rod to drop one by one, thereby causing the steering knuckle blank suspended by the hook 504 below the pressure rod to drop. While the abrasive is rotating and contacting, the steering knuckle blank is also contacted with abrasives at a deep level, so that it is polished more evenly and thoroughly. After the pressure wheel 402 is separated from the end 501 on the suspension rod 5, the suspension rod 5 returns to its original position under the action of the spring 502, which ensures that the steering knuckle blank is constantly in contact with the abrasives that are spun on, and is continuously lifted and lowered to contact abrasives at different depths, so that a full polishing process is achieved.

[0034] An inverted L-shaped bracket 101 is also fixed on the base 1 outside the abrasive barrel 2, and a drive motor 6 is fixed on the horizontal part of the bracket 101; the bracket 101 is used to assist in the installation of the drive motor 6 so that the drive motor 6 has a certain transmission space.

[0035] The output shaft of the driving motor 6 passes through the horizontal part of the bracket 101 downward and is fixed with a small gear 601, and the small gear 601 is on the same horizontal line as the large gear 201, and the small gear 601 is meshed with the large gear 201;

[0036] The driving motor 6 works to rotate the pinion 601, which meshes with the transmission gear 201 to rotate, thereby rotating the abrasive barrel 2 on the base 1, and the abrasive barrel 2 drives the abrasive inside it to rotate and continuously contact each steering knuckle blank.

[0037] Two cylinders 7 are also fixed on the base 1 outside the large gear 201, and two ear plates 301 are fixed on the outer periphery of the cover plate 3. The piston rods at the telescopic ends of the cylinders 7 extend upward and are fixedly connected to the bottom surfaces of the ear plates 301 above them.

[0038] The operation of the cylinder 7 can drive the ear plate 301 to rise and fall, and the ear plate 301 rises and falls to drive the cover plate 3 to rise and fall, thereby controlling whether the hook 504 is exposed from the abrasive barrel 2, so as to facilitate the disassembly and assembly of the steering knuckle blank for use.

[0039] A thread groove 5031 is formed at the bottom of the plug 503, and a thread section 5041 is formed at the upper part of the hook 504, and the thread section 5041 is screwed into the thread groove 5031;

[0040] When installing the steering knuckle blank, the hook 504 is lowered as much as possible so that the through hole on the steering knuckle blank is aligned with the opening on the hook 504 and is inserted into it. Then the threaded section 5041 is rotated to continuously enter the thread groove 5031, so that the gap between the opening of the hook 504 and the bottom of the plug 503 becomes smaller and smaller, which is convenient for preventing the steering knuckle blank from falling off during the subsequent grinding process.

[0041] The radii of the end head 501 and the plug 503 are equal and larger than the radius of the suspension rod 5 , and the two ends of the spring 502 are fixedly connected to the opposite surfaces of the end head 501 and the cover plate 3 , respectively.

[0042] The pressure wheel 402 is pressed on a suspension rod 5 located below its central axis; when the pressure wheel 402 presses the suspension rod 5 below it, the suspension rod 5 descends, the spring 502 is compressed, and the hook 504 at the bottom of the suspension rod 5 and the steering knuckle blank suspended on the hook 504 also descend and contact the deep-layer abrasive.

[0043] The rotation path of the pressure wheel 402 coincides with the annular array distribution path of the suspension rods 5 in a top-down perspective, so that the pressure wheel 402 can fully contact each suspension rod 5 when rotating.

[0044] The specific working principle of the utility model is as follows: first, the base 1 is used as a mounting carrier for mounting various components, and a large amount of abrasive for grinding is filled in the abrasive barrel 2, and then the cylinder 7 drives the ear plate 301 and the cover plate 3 to rise, so that the hook 504 is exposed from the abrasive barrel 2, and then the steering knuckle blank is installed, and the hook 504 is rotated to make it drop as much as possible, so that the through hole on the steering knuckle blank is aligned with the opening on the hook 504 and is sleeved into it, and then the threaded section 5041 is rotated to continuously enter the thread groove 5031, so that the gap between the opening of the hook 504 and the bottom of the plug 503 becomes smaller and smaller, and then the cylinder 7 controls the cover plate 3 to return to its original position, at which time the hook 504 and the steering knuckle blank are both in the abrasive in the abrasive barrel 2, and then the motor 6 is driven to work, so that the pinion 6 01 rotates, the small gear 601 meshes with the transmission large gear 201 to rotate, thereby causing the abrasive barrel 2 to rotate on the base 1, and the abrasive barrel 2 drives the abrasive inside it to rotate, constantly contacting each steering knuckle blank to achieve grinding operation. At the same time, the lifting motor 4 works to drive the base plate 401 to rotate, thereby causing the pressure wheel 402 to rotate, and the pressure wheel 402 will continuously press each pressure rod, causing each pressure rod to drop one by one, thereby causing the steering knuckle blank suspended by the hook 504 under the pressure rod to drop. After the pressure wheel 402 is separated from the end 501 on the suspension rod 5, the suspension rod 5 returns to its original position under the action of the spring 502, thereby ensuring that the steering knuckle blank is constantly in contact with the spun abrasive, and is constantly lifted and lowered to contact abrasives at different depths, thereby achieving sufficient grinding processing.

[0045] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. A steering knuckle blank grinding device, comprising a base (1), an abrasive barrel (2), a cover plate (3), a lifting motor (4), a suspension rod (5) and a cylinder (7), characterized in that: The upper end of the base (1) is rotatably connected to an abrasive barrel (2), and a large gear (201) is fixed to the lower portion of the outer periphery of the abrasive barrel (2); The upper end cover of the abrasive barrel (2) is provided with a cover plate (3), and the cover plate (3) is vertically penetrated by hanging rods (5) distributed in a ring array; the upper end of the hanging rod (5) is fixed with an end head (501), the lower end of the hanging rod (5) downwardly penetrates the cover plate (3) and is fixed with a plug (503), and a hook (504) is provided below the plug (503); the outer sleeve of the hanging rod (5) between the end head (501) and the upper end surface of the cover plate (3) is provided with a spring (502); A lifting motor (4) is also fixed at the center of the upper end of the cover plate (3); the output shaft of the lifting motor (4) faces upward and is fixed with a base plate (401); and a pressure wheel (402) is fixed at one end of the base plate (401); An inverted L-shaped bracket (101) is also fixed on the base (1) outside the abrasive barrel (2), and a driving motor (6) is fixed on the horizontal part of the bracket (101).

2. A steering knuckle blank grinding device according to claim 1, characterized in that: The output shaft of the driving motor (6) passes through the horizontal part of the bracket (101) downward and is fixed with a small gear (601), and the small gear (601) and the large gear (201) are on the same horizontal line, and the small gear (601) and the large gear (201) are meshingly connected.

3. The steering knuckle blank grinding device according to claim 1, characterized in that: Two cylinders (7) are also fixed on the base (1) outside the large gear (201), and two ear plates (301) are fixed on the outer periphery of the cover plate (3). The piston rods at the telescopic ends of the cylinders (7) extend upward and are fixedly connected to the bottom surfaces of the ear plates (301) above them.

4. The steering knuckle blank grinding device according to claim 1, characterized in that: A thread groove (5031) is provided at the bottom end of the plug (503), and a thread section (5041) is provided at the upper portion of the hook (504), and the thread section (5041) is screwed into the thread groove (5031).

5. The steering knuckle blank grinding device according to claim 1, characterized in that: The radii of the end head (501) and the plug (503) are equal and greater than the radius of the suspension rod (5), and the two ends of the spring (502) are fixedly connected to the opposite surfaces of the end head (501) and the cover plate (3), respectively.

6. A steering knuckle blank grinding device according to claim 1, characterized in that: The pressing wheel (402) is pressed on top of a suspension rod (5) located below its central axis.

7. The steering knuckle blank grinding device according to claim 1, characterized in that: The rotation path of the pressure wheel (402) coincides with the annular array distribution path of the suspension rod (5) when viewed from a top-down perspective.

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