Positioning and protecting integrated device for surface polishing of brake drum blank

Abstract

The utility model discloses a brake drum blank surface polishing positioning and protecting integrated device which comprises a rectangular base, fixing devices are inserted into the four corners of the rectangular base in a penetrating mode, the rectangular base is connected with a supporting column through the fixing devices, and an L-shaped positioning rod is inserted into the outer side wall of the supporting column in a penetrating mode. The supporting columns are connected with the folding plates through the L-shaped positioning rods and define a rectangular fence. A positioning assembly is installed on the upper side wall of the center of a bottom plate of the cross-shaped rack. A rectangular center column of the positioning assembly is connected with an electric telescopic rod through a fixing frame, and an abutting arc-shaped plate is detachably and fixedly installed on the side wall of the tail end of the electric telescopic rod. Effective protection is formed through the rectangular enclosure, and metal dust and chippings can be blocked on the inner side of the folding plate due to the weight of the metal dust and chippings.

Description

Technical Field

[0001] The utility model belongs to the technical field of auto parts production equipment, in particular to a positioning and protection integrated device for grinding the surface of a brake drum blank. Background Art

[0002] Brake drum is one of the most important materials in automobile parts, and the surface of brake drum needs to be polished during the production process. Using grinding equipment to polish the surface of brake drum blank can not only improve the smoothness, but also effectively remove the burrs on the surface of the blank and improve the fit between the blanks.

[0003] Existing document CN212762597U A semi-finished product corner grinding device for motorcycle brake drum production - A semi-finished product corner grinding device for motorcycle brake drum production, including a support, a cross bar is threadedly connected to the middle part of the two sides of the upper end of the support through a support rod, a welding block is welded and connected to the middle part of the front surface of the cross bar in a forward protruding manner, a hydraulic cylinder is penetrated and connected to the middle part of the front end of the welding block, a second servo motor at the bottom end of the hydraulic cylinder is movably connected to a positioning block through a screw thread, an L-shaped positioning rod is equidistantly connected to the outer side of the upper end of the positioning tube, a slider is slidably connected to the front and rear parts of one side of the upper end of the support through a slide rail, an adjusting rod is threadedly connected to the middle part of the inner side of the slider through an adjusting tube, and a grinding head is rotatably connected to the middle part of the front surface of the adjusting rod through the first servo motor.

[0004] The above technical solution has the advantages of facilitating the grinding and positioning of the brake drum structure and improving the grinding accuracy of the brake drum by setting a positioning block, a positioning tube, an L-shaped positioning rod, a slide rail, a slider, an adjustment rod and an adjustment tube structure. However, it uses a positioning block, a positioning tube and an L-shaped positioning rod to fix the brake drum. When the grinding work is in progress, the grinding head will rotate at high speed with the motor, and the device is not equipped with any protective structure, so there is a certain problem of operational safety; when the first servo motor drives the grinding head to rotate and grinds the surface of the brake drum, as the rotation and grinding work continues, a large amount of metal dust will overflow from around the grinding head, and the device is not equipped with any metal dust spill recovery structure, which is not conducive to the optimization of the working environment. Utility Model Content

[0005] The problem to be solved by the utility model is to provide a positioning and protection integrated device for grinding the surface of a brake drum blank, thereby improving the construction safety of operators and optimizing the working environment.

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

[0007] The utility model discloses a positioning and protection integrated device for grinding the surface of a brake drum blank, which is used for processing and positioning the brake drum blank to be processed. The brake drum blank has an inner circular core hole, comprises a rectangular base and a positioning component, and also comprises a rectangular enclosure and a cross frame bottom plate. The rectangular enclosure comprises four sets of support columns, folding plates and fixing parts. The support columns are placed on the four corners of the rectangular enclosure. The fixing parts fix the folding plates and the support columns as one body. The rectangular enclosure can be detachably fixed on the rectangular base along the z-axis direction. The bottom of the support column is fixed to the cross frame bottom plate as one body. The positioning component is fixed to the cross frame The center of the base plate is fixed, and the positioning assembly includes a rectangular center column, an electric telescopic rod, a fixing frame and an abutting arc plate. The outer end of the electric telescopic rod is detachably fixed to the abutting arc plate as a whole. The electric telescopic rod has four rods, which are perpendicular to the z-axis and evenly distributed on the four sides of the rectangular center column. The electric telescopic rod extends from the rectangular center column and retracts synchronously, so that the abutting arc plates are embraced to form a circular ball placed in the same inscribed circle. The abutting arc plate can be tightly abutted against the inner circle core hole. The height of the rectangular enclosure is greater than the height of the positioning assembly, and is greater than the height of the brake drum blank installed on the positioning assembly.

[0008] As a further improvement of the above technical solution, the rectangular center column in the positioning assembly is threadedly fixed to the cross frame bottom plate as an integral whole, an assembly hole is opened on the outer wall of the rectangular center column, the rectangular center column is connected to the fixing frame through the assembly hole, and an anti-slip pad is also bonded to the outer side wall of the abutting arc plate.

[0009] As a further improvement to the above technical solution, the cross section of the support column is an isosceles triangle, and two equal angles of the isosceles triangle are respectively provided with side grooves, the side grooves are directly opposite to and matched with the side edges of the adjacent folding plates, and the upper ends of the side grooves are provided with upper plug holes; the upper ends of the sides of the folding plates are provided with positioning holes, the upper plug holes and the positioning holes are directly opposite to each other along the z-axis, and the fixing member includes an L-shaped positioning rod, and the L-shaped positioning rod is matched with the upper plug holes and the positioning holes;

[0010] As a further improvement of the above technical solution, the rectangular base also includes a center groove and corner grooves arranged on the upper surface. The corner grooves are arranged at the four corners of the rectangular base. The center groove and the corner grooves together form a sinking area. The bottom of the outer wall of the rectangular enclosure is adapted to the sinking area. The rectangular base is fixedly connected to the support column through a fixing device.

[0011] As a further improvement to the above technical solution, the vertex of the isosceles triangle is provided with a through hole, a fixing screw hole is provided at the center of the corner groove, and the fixing device includes a fixing rod, which passes through the through hole and is threadedly connected to the fixing screw hole.

[0012] As a further improvement to the above technical solution, the top of the fixing rod is threadedly connected to a limiting sleeve, the fixing rod is clamped with the upper side wall of the supporting column through the limiting sleeve, and a butterfly knob is welded to the upper side wall of the fixing rod.

[0013] The utility model has the following beneficial effects:

[0014] The utility model provides a fixing device and a folding plate. The fixing device is inserted into both ends of the folding plate, and the folding plate is connected to the rectangular base through the fixing device. Four folding plates form an enclosure at the center of the rectangular base, and the rectangular base is connected to the grinding workbench of the brake drum blank grinder through bolts. When in use, when the rectangular base is fixed on the workbench of the grinder, the brake drum blank is placed inside the rectangular enclosure surrounded by the folding plates. The grinding head of the grinder needs to go deep into the inside of the folding plates when grinding the brake drum blank. The entire grinding work is carried out inside the enclosure, so it can play an effective job protection role and improve the construction safety of the operator.

[0015] 2. The utility model provides a folding plate and a positioning assembly. The positioning assembly is installed at the upper center of the rectangular base, and the rectangular base is abutted against the inner wall of the brake drum blank through the positioning assembly. The height of the folding plate is greater than the height of the positioning assembly, and is also greater than the height of the two when the brake drum blank is installed on the positioning assembly. Therefore, when in use, the grinding head of the grinder grinds the brake drum blank, that is, inside the chamber surrounded by the folding plate. The metal dust and debris generated during the grinding will be blocked by the folding plate, and because the metal dust is heavier, its spill height is lower, so it will not overflow from the top of the folding plate. The metal dust and debris are effectively controlled in the chamber surrounded by the folding plate to achieve the effect of suppressing the scattering of metal dust and debris, thereby optimizing the working environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of a positioning and protection integrated device for grinding the surface of a brake drum blank of the utility model;

[0017] Figure 2 This is a structural exploded view of a positioning and protection integrated device for grinding the surface of a brake drum blank according to the utility model;

[0018] Figure 3 It is a structural exploded view from another angle of a positioning and protection integrated device for grinding the surface of a brake drum blank of the utility model;

[0019] Figure 4 It is a top view of a positioning and protection integrated device for grinding the surface of a brake drum blank according to the utility model;

[0020] Figure 5 for Figure 2 A magnified view of the structure at A;

[0021] Figure 6 This is the clamping diagram when in use.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Rectangular base; 100. Rectangular enclosure; 101. Center slot; 102. Corner slot; 103. Fixing screw hole; 2. Support column; 201. Side slot; 202. Upper plug hole; 203. Lower plug hole; 3. Fixing device; 301. Fixing rod; 302. Limiting sleeve; 303. Butterfly knob; 4. L-shaped positioning rod; 5. Folding plate; 6. Cross frame bottom plate; 7. Positioning assembly; 701. Rectangular center column; 7011. Assembly hole; 702. Fixing frame; 703. Electric telescopic rod; 704. Abutting arc plate; 705. Anti-skid pad; 41. Positioning hole; 500. Brake drum blank; 501. Inner circle core hole; 205. Through hole. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be clearly and completely explained below in combination with the present embodiment and the accompanying drawings of the specification.

[0025] See also Figure 4 and Figure 6 The present embodiment provides a positioning and protection integrated device for grinding the surface of a brake drum blank, which is used to perform processing and positioning on a brake drum blank 500 to be processed. The brake drum blank 500 has an inner circular core hole 501.

[0026] See also Figure 1 The present embodiment is a positioning and protection integrated device for grinding the surface of a brake drum blank, comprising a rectangular base 1 and a positioning assembly 7, a rectangular enclosure 100 and a cross frame bottom plate 6, the rectangular enclosure 100 comprising four sets of support columns 2, a folding plate 5 and a fixing piece, the support column 2 is placed on the four corners of the rectangular enclosure 100, the fixing piece fixes the folding plate 5 and the support column 2 as a whole, the rectangular enclosure 100 is detachably fixed to the rectangular base 1 along the z-axis direction, and is combined with Figure 4 and Figure 6 The height of the rectangular enclosure 100 is greater than the height of the positioning assembly 7 , and is greater than the height of the brake drum blank 500 installed on the positioning assembly 7 .

[0027] See also Figure 3 The bottom of the support column 2 is fixedly connected to the cross frame bottom plate 6 as a whole, and the positioning component 7 is fixedly connected to the center of the cross frame bottom plate 6.

[0028] See also Figure 2 and Figure 5The positioning assembly 7 includes a rectangular central column 701, an electric telescopic rod 703, a fixing frame 702 and an abutting arc plate 704. The outer end of the electric telescopic rod 703 is detachably fixed to the abutting arc plate 704. The electric telescopic rod 703 has four rods, which are perpendicular to the z-axis and evenly distributed on the four sides of the rectangular central column 701. The electric telescopic rod 703 extends from the rectangular central column 701 and is synchronously extended and retracted, so that the abutting arc plate 704 is embraced to form a circular ball 400 placed in the same inscribed circle, and the abutting arc plate 704 can be tightly abutted against the inner circle core hole 501. The rectangular central column 701 in the positioning assembly 7 is threadedly fixed to the cross frame bottom plate 6 as a whole. An assembly hole 7011 is opened on the outer wall of the rectangular central column 701. The rectangular central column 701 is connected to the fixing frame 702 through the assembly hole 7011. The outer wall of the abutting arc plate 704 is also bonded with an anti-slip pad 705. The cross section of the support column 2 is an isosceles triangle, and two equal angles of the isosceles triangle are provided with side grooves 201, and the side grooves 201 are opposite to and matched with the side edges of the adjacent folding plates 5, and the upper ends of the side grooves 201 are provided with upper plug holes 202; the upper ends of the sides of the folding plates 5 are provided with positioning holes 41, and the upper plug holes 202 and the positioning holes 41 are opposite to each other along the z-axis, and the fixing member includes an L-shaped positioning rod 4, and the L-shaped positioning rod 4 is matched with the upper plug holes 202 and the positioning holes 41;

[0029] See also Figure 2 The rectangular base 1 also includes a central groove 101 and a corner groove 102 disposed on the upper surface. The corner groove 102 is disposed at the four corners of the rectangular base 1. Figure 1 The central groove 101 and the corner groove 102 enclose a sinking area, the bottom of the outer wall of the rectangular enclosure 100 is adapted to the sinking area, and the rectangular base 1 is fixedly connected to the support column 2 through the fixing device 3. There is a through hole 205 at the top corner of the isosceles triangle, and a fixing screw hole 103 is opened at the center of the corner groove 102. The fixing device 3 includes a fixing rod 301, and the fixing rod 301 passes through the through hole 205 and is threadedly connected to the fixing screw hole 103. The top of the fixing rod 301 is threadedly connected to the limiting sleeve 302, and the fixing rod 301 is clamped with the upper side wall of the support column 2 through the limiting sleeve 302. The upper side wall of the fixing rod 301 is welded with a butterfly knob 303.

[0030] When in use, first, the sides of both ends of the folding plate 5 are inserted into the side grooves 201 of the adjacent support columns 2, and after being inserted, the L-shaped positioning rod 4 is inserted from top to bottom to lock the folding plate 5 and the support column 2, and then the bottom of the outer wall of the rectangular enclosure 100 is inserted into the sinking area, and then the limiting sleeve 302 in the fixing device 3 is inserted from bottom to top into the top of the fixing rod 301, and then the fixing rod 301 is inserted from the upper end of the support column 2 into the through hole 205 until it reaches the fixing screw hole 103 of the rectangular base 1, and By holding the butterfly knob 303 and turning it, the support column 2 can be installed on the rectangular base 1, and then the rectangular base 1 is locked on the workbench of the grinder for grinding the brake drum blank by bolts, wherein the grinder for grinding the brake drum blank belongs to the prior art, and the four folding plates 5 form a rectangular enclosure 100 at the center of the rectangular base 1. The grinding head of the grinder needs to penetrate into the interior of the rectangular enclosure 100 when grinding the brake drum blank, and the entire grinding work is carried out inside the rectangular enclosure, so it can play an effective job protection role.

[0031] The brake drum blank is covered on the upper outside of the positioning component 7, and then the equipment is started. At that time, the electric telescopic rod 703 in the positioning component 7 is extended, pushing the abutting arc plate 704 on its end to gradually expand outward, and then abuts against the inner wall of the brake drum blank through the anti-slip pad 705, which plays the effect of supporting the brake drum blank and positioning it to prevent movement. When the grinding head of the grinder is grinding the brake drum blank, that is, it is carried out inside the chamber surrounded by the folding plate 5, the metal dust and debris generated during the grinding will be blocked by the folding plate 5, and because the metal dust is heavier, its spill height is lower, so it will not overflow from the top of the folding plate 5.

[0032] 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, as well as any modification, equivalent replacement and improvement made, shall fall within the protection scope of the present invention.

Claims

1. A positioning and protection integrated device for grinding the surface of a brake drum blank, used for processing and positioning a brake drum blank (500) to be processed, wherein the brake drum blank (500) has an inner circular core hole (501), comprises a rectangular base (1) and a positioning component (7), characterized in that: It also comprises a rectangular enclosure (100) and a cross frame bottom plate (6), wherein the rectangular enclosure (100) comprises four sets of support columns (2), a folding plate (5) and fixing parts, wherein the support columns (2) are placed on the four corners of the rectangular enclosure (100), and the fixing parts fix the folding plate (5) and the support columns (2) into one body, and the rectangular enclosure (100) is detachably fixed on the rectangular base (1) along the z-axis direction. The bottom of the support column (2) is fixedly connected to the cross frame bottom plate (6) as a whole; the positioning assembly (7) is fixedly connected to the center of the cross frame bottom plate (6); the positioning assembly (7) comprises a rectangular center column (701), an electric telescopic rod (703), a fixing frame (702) and an abutting arc plate (704); the outer end of the electric telescopic rod (703) is detachably fixedly connected to the abutting arc plate (704) as a whole; the electric telescopic rod (703) has four rods, which are perpendicular to the z-axis and evenly distributed at On the four sides of the rectangular central column (701), the electric telescopic rod (703) extends from the rectangular central column (701) and telescopes synchronously, so that the abutting arc plates (704) are embraced to form a circular ball (400) placed in the same inscribed circle, and the abutting arc plates (704) can be tightly abutted against the inner circle core hole (501); the height of the rectangular enclosure (100) is greater than the height of the positioning assembly (7), and is greater than the height of the brake drum blank (500) installed on the positioning assembly (7).

2. The positioning and protection integrated device for grinding the surface of a brake drum blank according to claim 1, characterized in that: The rectangular central column (701) in the positioning assembly (7) is threadedly fixed to the cross frame bottom plate (6) as a whole, an assembly hole (7011) is provided on the outer wall of the rectangular central column (701), the rectangular central column (701) is connected to the fixing frame (702) through the assembly hole (7011), and an anti-slip pad (705) is also bonded to the outer side wall of the abutting arc plate (704).

3. The positioning and protection integrated device for grinding the surface of a brake drum blank according to claim 1, characterized in that: The cross section of the support column (2) is an isosceles triangle, and two equal angles of the isosceles triangle are respectively provided with side grooves (201), the side grooves (201) are directly opposite to and matched with the side edges of the adjacent folding plates (5), and the upper ends of the side grooves (201) are provided with upper plug holes (202); the upper ends of the side edges of the folding plates (5) are provided with positioning holes (41), the upper plug holes (202) and the positioning holes (41) are directly opposite to each other along the z-axis, and the fixing member comprises an L-shaped positioning rod (4), and the L-shaped positioning rod (4) is matched with the upper plug holes (202) and the positioning holes (41).

4. The positioning and protection integrated device for grinding the surface of a brake drum blank according to claim 3, characterized in that: The rectangular base (1) further comprises a central groove (101) and a corner groove (102) disposed on the upper surface; the corner grooves (102) are disposed at four corners of the rectangular base (1); the central groove (101) and the corner grooves (102) together enclose a sinking area; the bottom of the outer wall of the rectangular enclosure (100) is adapted to the sinking area; and the rectangular base (1) is fixedly connected to the support column (2) via a fixing device (3).

5. The positioning and protection integrated device for grinding the surface of a brake drum blank according to claim 4, characterized in that: The apex of the isosceles triangle has a through hole (205), the center of the angle slot (102) has a fixing screw hole (103), and the fixing device (3) comprises a fixing rod (301), and the fixing rod (301) passes through the through hole (205) and is threadedly connected to the fixing screw hole (103).

6. The positioning and protection integrated device for grinding the surface of a brake drum blank according to claim 5, characterized in that: The top of the fixing rod (301) is threadedly connected to a limiting sleeve (302), the fixing rod (301) is clamped with the upper side wall of the support column (2) via the limiting sleeve (302), and a butterfly knob (303) is welded to the upper side wall of the fixing rod (301).

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