Aluminum alloy casting edge grinding mechanism

Abstract

The aluminum alloy casting edge grinding mechanism comprises a shell, a grinding disc which is arranged in the shell and rotates in the shell, a swing arm which is arranged on the shell and swings on the shell and a clamping mechanism which is arranged at the front end of the swing arm and used for clamping a casting, and an opening is formed in the position, corresponding to the clamping mechanism, of the upper end of the shell. When the polishing disc rotates, the swing arm swings and rotates at regular time under the action of the linkage mechanism. During work, a casting is clamped through the clamping mechanism, the front end of the swing arm is located at the front end under the initial position, the polishing disc rotates to polish the edge of the casting, after polishing is completed, under the action of the linkage mechanism, the swing arm swings upwards and completes rotation, overturning of the casting is achieved, then the swing arm swings downwards, the other edge of the casting makes contact with the polishing disc, and the casting is polished. And polishing of the edge of the other side is completed. And the grinding machine does not need to be held manually for grinding, so that the working efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The invention relates to the field of aluminum alloy casting processing, in particular to an aluminum alloy casting edge grinding mechanism. Background Art

[0002] Aluminum alloy castings refer to pure aluminum or aluminum alloy parts obtained by casting. Generally, aluminum or aluminum alloy heated to liquid is poured into the mold cavity through a sand mold or a metal mold to obtain parts of various shapes and sizes. It has the following characteristics and advantages: Lightweight: The density of aluminum alloy is smaller than that of cast iron and cast steel, but the specific strength is higher. Under the same load conditions, the use of aluminum alloy castings can reduce the weight of the structure. Strong corrosion resistance: It has good corrosion resistance in the atmosphere and fresh water. Good casting performance: Low melting point, good fluidity, suitable for casting parts with complex shapes and thin walls. Good thermal conductivity: It is suitable for manufacturing parts that require good thermal conductivity, such as cylinder heads and pistons of internal combustion engines.

[0003] However, after the aluminum alloy casting is cast, the edges are not smooth and need to be polished. The existing polishing methods are all done by hand-held grinding machines, which are inefficient and labor-intensive. Summary of the invention

[0004] The purpose of the present invention is to solve the above-mentioned problem and provide an edge grinding mechanism for aluminum alloy castings, which facilitates the grinding of the edge position of the aluminum alloy castings and improves the grinding efficiency.

[0005] The technical solution adopted by the present invention to solve the technical problem is:

[0006] An aluminum alloy casting edge grinding mechanism comprises a housing, a grinding disc arranged in the housing and rotating in the housing, a swing arm arranged on the housing and swinging on the housing, and a clamping mechanism arranged at the front end of the swing arm for clamping the casting, an opening is arranged at a position corresponding to the clamping mechanism at the upper end of the housing, and when the grinding disc rotates, the swing arm is swung and rotated in a timely manner under the action of a linkage mechanism;

[0007] The linkage mechanism includes a rotating shaft arranged on the shell and rotating on the shell, a first driving plate and a second driving plate arranged on the rotating shaft, a roller and a gear are arranged on the rotating shaft at the rear end of the swing arm, a protrusion cooperating with the roller is arranged on the lower surface of the first driving plate, and a rack meshing with the gear is arranged on the upper surface of the second driving plate, the position of the protrusion corresponds to the position of the rack, and the curvature of the protrusion is greater than the curvature of the rack.

[0008] Furthermore, the swing arm includes a sleeve, a telescopic rod arranged in the sleeve and sliding in the sleeve, and a locking screw for locking the telescopic rod is provided on the sleeve.

[0009] Furthermore, a mounting plate is provided at the front end of the telescopic rod, and the U-shaped groove of the clamping mechanism is slidably connected to the mounting plate.

[0010] Furthermore, a first guide rod is provided on the mounting plate, a guide sleeve matching with the first guide rod is provided at the rear end of the U-shaped groove, and a locking screw is provided on the guide sleeve.

[0011] Furthermore, a fixed block is provided at the rear end of the sleeve, and a rotating shaft at the rear end of the swing arm passes through the fixed block and is rotatably connected to the fixed block. A fixed shaft supported on the shell and rotating on the shell is provided on the side of the fixed block, and a connecting rod is provided at the left end of the fixed shaft, and a tension spring is provided between the lower end of the connecting rod and the rear end of the shell.

[0012] Furthermore, the clamping mechanism includes a U-shaped groove, a pressing plate arranged in the U-shaped groove and lifted and lowered in the U-shaped groove for pressing the casting, and the opening of the U-shaped groove faces forward.

[0013] Furthermore, the pressure plate is provided with a second guide rod passing through the upper end of the U-shaped groove and slidably connected to the U-shaped groove, and the upper end of the U-shaped groove is provided with a clamping screw.

[0014] Furthermore, the rotating shaft is connected to the rotating shaft of the grinding disc via a belt, and a tensioning wheel for tightening the belt is provided on the shell.

[0015] Furthermore, a protective cover is provided at the front end of the shell.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention includes a shell, a grinding disc arranged in the shell and rotating in the shell, a swing arm arranged on the shell and swinging on the shell, and a clamping mechanism for clamping the casting arranged at the front end of the swing arm. An opening is provided at the upper end of the shell corresponding to the clamping mechanism. When the grinding disc rotates, the swing arm is swung and rotated at a fixed time under the action of the linkage mechanism. When working, the casting is clamped by the clamping mechanism. In the initial position, the front end of the swing arm is located at the front end, and the grinding disc rotates to grind the edge of the casting. After the grinding is completed, under the action of the linkage mechanism, the swing arm swings upward and completes the rotation, realizing the flipping of the casting. Then the swing arm swings downward, and the other edge of the casting contacts the grinding disc to complete the grinding of the other side edge. Then the grinding disc stops and the casting is replaced. There is no need for manual handheld grinding wheel machine for grinding, which improves work efficiency and reduces labor intensity. It can also automatically complete the flipping of the casting and reduce labor intensity.

[0018] 2. The linkage mechanism in the present invention includes a rotating shaft arranged on the housing and rotating on the housing, a first driving disc and a second driving disc arranged on the rotating shaft, a roller and a gear are arranged on the rotating shaft at the rear end of the swing arm, a protrusion cooperating with the roller is arranged on the lower surface of the first driving disc, a rack meshing with the gear is arranged on the upper surface of the second driving disc, the position of the protrusion corresponds to the position of the rack, and the curvature of the protrusion is greater than the curvature of the rack. The rotating shaft drives the first driving disc and the second driving disc to rotate, and when the protrusion contacts the roller, the rear end of the swing arm is pressed down, and the front end of the swing arm swings upward, and at the same time, under the action of the gear and the rack, the swing arm rotates 180 degrees, thereby realizing the flipping of the casting, and there is no need to set a separate driving mechanism such as a motor, a cylinder, etc. to drive the swing arm to swing and rotate, and the cost is low. The curvature of the protrusion is greater than the curvature of the rack, which ensures that the front end of the swing arm swings upward and then rotates, and the grinding disc will not grind other positions of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is the front view of the present invention;

[0022] Figure 3 It is a top view of the present invention.

[0023] In the figure: housing 1, grinding disc 2, opening 3, rotating shaft 4, first driving disc 5, second driving disc 6, roller 7, gear 8, protrusion 9, rack 10, sleeve 11, telescopic rod 12, mounting plate 13, first guide rod 14, guide sleeve 15, fixing block 16, fixing shaft 17, tension spring 18, U-shaped groove 19, pressure plate 20, second guide rod 21, clamping screw 22, belt 23, tensioning wheel 24, protective cover 25. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings 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 should fall within the scope of protection of the present invention.

[0025] like Figure 1 As shown, a mechanism for grinding the edge of an aluminum alloy casting comprises a shell 1, a grinding disc 2 arranged in the shell 1 and rotating in the shell 1, a swing arm arranged on the shell 1 and swinging on the shell 1, and a clamping mechanism for clamping the casting arranged at the front end of the swing arm. An opening 3 is provided at the upper end of the shell 1 at a position corresponding to the clamping mechanism. The opening 3 exposes the grinding disc 2 so that the casting can be ground. When the grinding disc 2 rotates, the swing arm can swing and rotate at a fixed time under the action of the linkage mechanism. When working, the casting is clamped by the clamping mechanism. In the initial position, the front end of the swing arm is located at the front end, and the grinding disc 2 rotates to grind the edge of the casting. After the grinding is completed, under the action of the linkage mechanism, the swing arm swings upward and completes the rotation, so that the casting is turned over. Then the swing arm swings downward, and the other edge of the casting contacts the grinding disc to complete the grinding of the other edge. Then the grinding disc stops and the casting is replaced. There is no need for manual handheld grinding machines for grinding, which improves work efficiency and reduces labor intensity. The casting can be turned over automatically to reduce labor intensity.

[0026] like Figure 1 and Figure 2 As shown, the linkage mechanism includes a rotating shaft 4 arranged on the housing 1 and rotating on the housing 1, a first driving disc 5 and a second driving disc 6 arranged on the rotating shaft 4, a roller 7 and a gear 8 are arranged on the rotating shaft at the rear end of the swing arm, a protrusion 9 is arranged on the lower surface of the first driving disc 5 to cooperate with the roller 7, and a rack 10 is arranged on the upper surface of the second driving disc 6 to mesh with the gear 8, the position of the protrusion 9 corresponds to the position of the rack 10, and the curvature of the protrusion 9 is greater than the curvature of the rack 10. The rotating shaft 4 drives the first driving disc 5 and the second driving disc 6 to rotate, and when the protrusion 9 contacts the roller 7, the rear end of the swing arm is pressed down, and the front end of the swing arm swings upward, and at the same time, under the action of the gear 8 and the rack 10, the swing arm rotates 180 degrees, thereby realizing the flipping of the casting, and there is no need to set a separate driving mechanism such as a motor, a cylinder, etc. to drive the swing arm to swing and rotate, and the cost is low. The curvature of the protrusion 9 is greater than the curvature of the rack 10, which ensures that the front end of the swing arm swings upward and then rotates, and the grinding disc will not grind other positions of the casting.

[0027] like Figure 1 As shown, the swing arm includes a sleeve 11, a telescopic rod 12 disposed in the sleeve 11 and sliding in the sleeve 11, and a locking screw for locking the telescopic rod 12 is provided on the sleeve 11.

[0028] like Figure 2 As shown, a mounting plate 13 is provided at the front end of the telescopic rod 12, and the U-shaped groove of the clamping mechanism is slidably connected to the mounting plate 13. A first guide rod 14 is provided on the mounting plate 13, and a guide sleeve 15 matching the first guide rod 14 is provided at the rear end of the U-shaped groove, and a locking screw is provided on the guide sleeve 15 for fixing the height of the U-shaped groove.

[0029] like Figure 3 As shown, a fixed block 16 is provided at the rear end of the sleeve 11, and a rotating shaft at the rear end of the swing arm passes through the fixed block 16 and is rotatably connected thereto. A fixed shaft 17 supported on and rotating on the shell 1 is provided on the side of the fixed block 16. A bracket is provided on the shell 1, and the fixed shaft 17 passes through the bracket and is rotatably connected thereto. A connecting rod is provided at the left end of the fixed shaft 17, and a tension spring 18 is provided between the lower end of the connecting rod and the rear end of the shell 1. Under the action of the tension spring 18, the front end of the swing arm is located at the lower end, and the grinding disc can grind the casting.

[0030] like Figure 1 and Figure 2 As shown, the clamping mechanism includes a U-shaped groove 19, a pressing plate 20 disposed in the U-shaped groove 19 and lifted and lowered in the U-shaped groove 19 for pressing the casting, the U-shaped groove 19 opens forward, and the casting is fixed by the pressing plate.

[0031] The pressure plate 20 is provided with a second guide rod 21 passing through the upper end of the U-shaped groove 19 and slidably connected to the U-shaped groove 19. The upper end of the U-shaped groove 19 is provided with a clamping screw 22. By loosening the clamping screw 22, the pressure plate 20 can be moved up along the second guide rod 21 to replace the casting. Thereafter, the clamping screw 22 is tightened to press the pressure plate 20 downward to fix the casting.

[0032] like Figure 3 As shown, the rotating shaft 4 is connected to the rotating shaft of the grinding disc 2 via a belt 23 , and a tensioning wheel 24 for tensioning the belt 24 is provided on the housing 1 .

[0033] like Figure 3 As shown, a protective cover 25 is provided at the front end of the housing 1 .

[0034] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "left", "right", "up", "down", etc. are based on the directions or positional relationships shown in the accompanying 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 direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection, it can be a direct connection, it can be an indirect connection through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. An aluminum alloy casting edge grinding mechanism, characterized in that: The invention comprises a housing (1), a grinding disc (2) arranged in the housing (1) and rotating in the housing (1), a swing arm arranged on the housing (1) and swinging on the housing (1), and a clamping mechanism arranged at the front end of the swing arm for clamping the casting, an opening (3) is provided at a position corresponding to the clamping mechanism at the upper end of the housing (1), and when the grinding disc (2) rotates, the swing arm is swung and rotated in a timely manner under the action of the linkage mechanism; The linkage mechanism comprises a rotating shaft (4) arranged on the housing (1) and rotating on the housing (1), a first driving plate (5) and a second driving plate (6) arranged on the rotating shaft (4); a roller (7) and a gear (8) are arranged on the rotating shaft at the rear end of the swing arm; a protrusion (9) cooperating with the roller (7) is arranged on the lower surface of the first driving plate (5); a rack (10) meshing with the gear (8) is arranged on the upper surface of the second driving plate (6); the position of the protrusion (9) corresponds to the position of the rack (10); and the curvature of the protrusion (9) is greater than the curvature of the rack (10).

2. The aluminum alloy casting edge grinding mechanism according to claim 1, characterized in that: The swing arm comprises a sleeve (11), a telescopic rod (12) arranged in the sleeve (11) and sliding in the sleeve (11), and a locking screw for locking the telescopic rod (12) is provided on the sleeve (11).

3. The aluminum alloy casting edge grinding mechanism according to claim 2, characterized in that: A mounting plate (13) is provided at the front end of the telescopic rod (12), and the U-shaped groove of the clamping mechanism is slidably connected to the mounting plate (13).

4. The aluminum alloy casting edge grinding mechanism according to claim 3, characterized in that: A first guide rod (14) is provided on the mounting plate (13), a guide sleeve (15) matching with the first guide rod (14) is provided at the rear end of the U-shaped groove, and a locking screw is provided on the guide sleeve (15).

5. The aluminum alloy casting edge grinding mechanism according to claim 2, characterized in that: A fixed block (16) is provided at the rear end of the sleeve (11); a rotating shaft at the rear end of the swing arm passes through the fixed block (16) and is rotatably connected to the fixed block (16); a fixed shaft (17) supported on the housing (1) and rotatable on the housing (1) is provided on the side of the fixed block (16); a connecting rod is provided at the left end of the fixed shaft (17); and a tension spring (18) is provided between the lower end of the connecting rod and the rear end of the housing (1).

6. The aluminum alloy casting edge grinding mechanism according to claim 1, characterized in that: The clamping mechanism comprises a U-shaped groove (19), a pressing plate (20) arranged in the U-shaped groove (19) and lifted and lowered in the U-shaped groove (19) for pressing the casting, and the opening of the U-shaped groove (19) faces forward.

7. The aluminum alloy casting edge grinding mechanism according to claim 6, characterized in that: The pressing plate (20) is provided with a second guide rod (21) passing through the upper end of the U-shaped groove (19) and slidably connected to the U-shaped groove (19), and the upper end of the U-shaped groove (19) is provided with a clamping screw (22).

8. The aluminum alloy casting edge grinding mechanism according to claim 1, characterized in that: The rotating shaft (4) is connected to the rotating shaft of the grinding disc (2) via a belt (23), and a tensioning wheel (24) for tensioning the belt (24) is provided on the housing (1).

9. The aluminum alloy casting edge grinding mechanism according to claim 1, characterized in that: The front end of the housing (1) is provided with a protective cover (25).

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