A high-pressure hydraulic sand cleaning device for deep groove castings

Abstract

The present invention relates to the technical field of casting sand cleaning, and in particular to a high-pressure hydraulic sand cleaning device for deep groove castings, comprising a conveying unit, a high-pressure water gun and a clamping and fixing unit, wherein the conveying unit comprises a conveying frame, a moving space, a conveying roller and a driving motor, and the clamping and fixing unit comprises a first bracket, wherein the first bracket is provided with a pressing plate, a supporting plate and a pad in sequence from top to bottom, wherein the pressing plate and the supporting plate are movably connected with the first bracket, and the pad is located below the high-pressure water gun, and after the right rear bracket of the engine is clamped and fixed by the clamping and fixing unit, the end of the front bracket of the right rear bracket of the engine contacts the pad, and the high-pressure water gun is connected to the pressing plate through a second bracket. After the present invention fixes the casting by the clamping and fixing unit, the pad supports the bottom of the casting, which is beneficial for the high-pressure water flow of the high-pressure water gun to clean the sand shell in the groove of the casting, thereby improving the cleaning efficiency and ensuring the quality of the product.

Description

Technical Field

[0001] The invention relates to the technical field of casting sand cleaning, in particular to a high-pressure hydraulic sand cleaning device for deep groove castings. Background Art

[0002] The right rear bracket of the automobile engine plays an important role in fixing, supporting, positioning and shock absorbing the engine. It is one of the indispensable parts in the vehicle and plays an important role in ensuring the stable operation of the engine, improving driving comfort and protecting the engine.

[0003] Prior art CN213565411U discloses a right rear bracket of an automobile engine, which includes a base and a front bracket connected to the base, the base and the front bracket are provided with interconnected weight-reducing grooves, and the weight-reducing grooves extend along the structure of the front bracket to the inside of the front bracket, forming a deep groove with a depth of about 70 mm and a diameter of 67*50 mm, and the diameter gradually decreases with the depth, and the right rear bracket of the automobile engine is formed by lost wax casting, and after the casting is completed, the sand shell on the surface of the casting is usually removed by a machine or a shot blasting machine, but because the weight-reducing groove of the right rear bracket of the automobile engine is deep, and as the weight-reducing groove extends to the inside of the front bracket, the mouth of the weight-reducing groove is The diameter of the casting is reduced, and it is difficult to clean the inner sand shell of the groove by conventional mechanical or shot blasting cleaning, especially the sand shells at the bottom of the weight-reducing groove and the four corners of the bottom, which are very difficult to clean. Therefore, after the casting is cleaned by machinery or shot blasting machine, it is often necessary to manually clean the sand shells at the bottom of the weight-reducing groove of the casting one by one with a handheld electric hammer or electric pick. The structure of the right rear bracket of the automobile engine is irregular, and it is not convenient to fix it during the cleaning process, which increases the difficulty of cleaning. There are also great safety hazards in the cleaning process, and the cleaning efficiency is low. In addition, it is difficult to control the strength of the vibrating electric hammer or electric pick in manual cleaning, which will damage the casting, thereby increasing the subsequent processing steps of the casting and reducing the quality of the casting. Summary of the invention

[0004] The purpose of the present invention is to address the deficiencies of the prior art and to provide a high-pressure hydraulic sand cleaning device for deep groove castings. The device has a reasonable design and is easy to use. After the casting is fixed by a pressing and fixing unit, a pad supports the bottom of the casting, which is beneficial for the high-pressure water flow of the high-pressure water gun to clean the sand shell in the groove of the casting, thereby improving the cleaning efficiency and ensuring the quality of the product.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a high-pressure hydraulic sand cleaning device for deep groove castings, comprising a conveying unit, a high-pressure water gun and a clamping and fixing unit, the clamping and fixing unit is located at the output end of the conveying unit, the conveying unit comprises a conveying frame, the conveying frame is provided with a moving space for the right rear bracket of the engine to move, conveying rollers located on both sides of the moving space and a driving motor for driving the conveying rollers to rotate, the clamping and fixing unit comprises a first bracket, the first bracket is provided with a pressing plate, a supporting plate and a pad in sequence from top to bottom, the supporting plate is arranged correspondingly to the conveying rollers on both sides, the pressing plate and the supporting plate are movably connected to the first bracket, the pressing plate and the supporting plate are arranged correspondingly, the first bracket is provided with a first driving device for driving the pressing plate to reciprocate up and down, the pad is located below the high-pressure water gun, after the right rear bracket of the engine is clamped and fixed by the clamping and fixing unit, the end of the front bracket of the right rear bracket of the engine conflicts with the pad, and the high-pressure water gun is connected to the pressing plate through a second bracket.

[0006] Furthermore, the pressure plate is provided with a lifting rod, one end of the lifting rod is fixedly connected to the pressure plate, and the other end is movably connected to the support plate, the lifting rod passes through the support plate and is connected to the first limit block, after the pressure plate moves to the top, the bottom of the support plate contacts the first limit block, and the upper surface of the support plate and the conveying surface of the conveying unit are located in the same horizontal plane.

[0007] Furthermore, the support plate is movably connected to the first bracket via a guide rod, a telescopic spring is sleeved on the outside of the guide rod, one end of the telescopic spring is connected to the bottom of the support plate, and the other end is connected to the first bracket.

[0008] Furthermore, the first bracket is provided with a second limiting block or a first groove for limiting the compression of the telescopic spring.

[0009] Furthermore, a sensing device is provided above the support plate, and the sensing device is electrically connected to the first driving device.

[0010] Further, after the pressing plate and the supporting plate are clamped and fixed to the right rear bracket of the engine, the upper surface of the pressing plate is higher than the upper surface of the conveying unit.

[0011] Furthermore, the high-pressure water gun is rotatably connected to the second bracket via a connecting seat, the rotating shaft of the connecting seat is provided with a gear, the second bracket is provided with a second driving device for driving the high-pressure water gun to swing, the second driving device includes a spur gear and a cylinder, the cylinder is connected to the spur gear, and the spur gear is meshed with the gear.

[0012] The beneficial effects of the present invention are:

[0013] 1. The right rear bracket casting of the engine is intermittently conveyed to the support plate through the conveying unit, and then the first driving device drives the pressing plate to move downward, and the upper and lower sides of the base of the right rear bracket of the engine are clamped and fixed by the pressing plate and the support plate. Since the pressing plate and the support plate are movably connected with the first bracket, the pressing plate presses down the support plate and the casting at the same time when pressing the two sides of the base, so that the lower end of the casting contacts the pad, so that the pad supports the casting, which is convenient for the high-pressure water gun to clean the sand from the casting groove fixed under the high-pressure water gun.

[0014] 2. The support plate is movably connected to the first bracket, which is beneficial to increase the distance between the upper surface of the support plate and the upper surface of the pad plate, so as to prevent the pad plate from affecting the movement and transportation of the right rear bracket of the engine toward the support plate. When the two sides of the base of the right rear bracket of the engine are transported to the top of the support plate, the end of the front bracket of the casting does not contact the pad plate. When the pressure plate applies pressure to move the support plate and the casting downward, the bottom of the support plate contacts the second limit block or the first bracket, and the second limit block or the first bracket supports the support plate. At the same time, the end of the front bracket of the casting contacts the pad plate, which realizes the fixation of the casting and enables the pad plate to play a supporting role.

[0015] 3. The supporting function of the pad helps to prevent the groove of the casting from bending and deforming on both sides of the clamped base when it is subjected to the downward impact force of the high-pressure water gun.

[0016] 4. After the casting is fixed by the pressing and fixing unit, the sand shell in the groove of the casting is cleaned by the high-pressure water flow of the high-pressure water gun, thereby improving the cleaning efficiency and ensuring the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 yes Figure 1 main view.

[0019] Figure 3 yes Figure 2 Enlarged view of the clamping unit.

[0020] Figure 4 yes Figure 1 Side view of.

[0021] Figure 5 yes Figure 1 An enlarged view of the local structure A.

[0022] Description of reference numerals:

[0023] 1——conveying unit, 101——conveying frame, 102——moving space, 103——conveying roller, 2——high-pressure water gun, 201——connecting seat, 202——gear, 3——pressing and fixing unit, 301——first bracket, 302——pressing plate, 303——support plate, 304——pad, 305——first driving device, 306——lifting rod, 307——first limiting block, 308——guide rod, 309——telescopic spring, 310——second limiting block, 4——right rear bracket of engine, 401——front bracket, 402——base, 5——second bracket, 6——sensing device, 7——second driving device, 701——spur gear, 702——cylinder. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the implementation scope of the present invention is not limited thereto.

[0025] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] 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, or it can be indirectly connected through an intermediate medium, or 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.

[0027] like Figure 1-Figure 5As shown, a high-pressure hydraulic sand cleaning device for deep groove castings of this embodiment includes a conveying unit 1, a high-pressure water gun 2 and a clamping and fixing unit 3, wherein the clamping and fixing unit 3 is located at the output end of the conveying unit 1, and the high-pressure water gun 2 is located above the clamping and fixing unit 3. The conveying unit 1 includes a conveying frame 101, and the conveying frame 101 is provided with a conveying roller 103, a moving space 102 for the right rear bracket 4 of the engine to move, and a driving motor for driving the conveying roller 103 to rotate. The conveying roller 103 is located on both sides of the moving space 102. During the conveying process, the front bracket 401 of the right rear bracket 4 of the engine faces downward and the base 402 faces upward. The conveying unit 1 is placed above the conveying unit 1, wherein the base 402 protrudes from both sides of the front bracket 401 and rests on the conveying rollers 103. The pressing and fixing unit 3 includes a first bracket 301, which is fixedly connected to the conveying frame 101. The first bracket 301 is provided with a pressing plate 302, a supporting plate 303 and a pad 304 from top to bottom. The supporting plate 303 includes a left supporting plate and a right supporting plate. The supporting plates 303 are located on both sides of the first bracket 301, and are arranged corresponding to the conveying rollers 103 on both sides of the conveying frame 101, and are used to support both sides of the base 402 of the right rear bracket 4 of the engine. The pressing plate 302 and the supporting plate 303 are connected to the first bracket 301. A bracket 301 is movably connected, the pressure plate 302 and the support plate 303 are correspondingly arranged, the first bracket 301 is provided with a first driving device 305 that drives the pressure plate 302 to reciprocate up and down, the pressure plate 302 is used to press the two ends of the base 402 of the right rear bracket 4 of the engine, and cooperates with the support plate 303 to fix the right rear bracket 4 of the engine, the pad 304 is located below the high-pressure water gun 2, the right rear bracket 4 of the engine is pressed down by the pressure plate 302, and after being clamped and fixed with the support plate 303, the end of the front bracket 401 of the right rear bracket 4 of the engine conflicts with the pad 304, and the high-pressure water gun 2 is used to press the right rear bracket 4 of the engine When the groove of the frame 4 is flushed and sanded, a certain impact will be generated on the groove. By supporting the end of the front bracket 401 through the pad 304, the force on the two ends of the base 402 can be reduced to prevent the two ends of the base 402 from being deformed and affecting the product quality; the pressing plate 302 is provided with a second bracket 5 connected to the high-pressure water gun 2. When sand is cleaned, the first driving device 305 drives the pressing plate 302 to move downward, and the high-pressure water gun 2 moves downward synchronously with the pressing plate 302, which is beneficial to reduce the distance between the high-pressure water gun 2 and the casting, and increase the impact of the high-pressure water force ejected by the high-pressure water gun 2 on the sand shell at the bottom of the weight-reducing groove of the casting, thereby improving the cleaning effect and reducing the splashing of the cleaning liquid.

[0028] like Figure 2-Figure 4The pressing plate 302 is shown as being provided with a lifting rod 306, one end of the lifting rod 306 is fixedly connected to the pressing plate 302, and the other end is movably connected to the supporting plate 303, the lifting rod 306 passes through the supporting plate 303 and is connected to the first limiting block 307, after the pressing plate 302 moves to the top, the bottom of the supporting plate 303 abuts against the first limiting block 307, and the upper surface of the supporting plate 303 and the conveying surface of the conveying unit 1 are located in the same horizontal plane; the lifting rod 306 is used to lift the supporting plate 303, and when the pressing plate 302 does not exert pressure on the supporting plate 303, the upper surface of the supporting plate 303 The highest point of the conveying surface of the conveying unit 1, i.e. the conveying roller 103, is at the same level, so that the conveying unit 1 can push the right rear bracket 4 of the engine to the top of the support plate 303; if the upper surface of the support plate 303 is higher than the upper surface of the conveying unit 1, the right rear bracket 4 of the engine will be obstructed when being conveyed to the clamping and fixing unit 3; if the upper surface of the support plate 303 is too lower than the upper surface of the conveying unit 1, when the casting moves toward the clamping and fixing unit 3, the base 402 will be tilted greatly, so that one end of the base 402 is higher than the base 402 of the subsequent casting, thereby causing the base 402 to be squeezed and stacked, affecting the fixation of the casting by the clamping and fixing unit 3.

[0029] like Figure 3 and Figure 4 As shown, the support plate 303 is movably connected to the first bracket 301 through a guide rod 308, and a telescopic spring 309 is sleeved on the outside of the guide rod 308. One end of the telescopic spring 309 is connected to the bottom of the support plate 303, and the other end is connected to the first bracket 301. The guide rod 308 can guide the up and down movement of the support plate 303, and at the same time, it can also ensure the level of the upper surface of the support plate 303, so as to prevent the support plate 303 from tilting when the lifting rod 306 lifts the support plate 303. The telescopic spring 309 can generate a downward pulling force on the support plate 303, that is, after the high-pressure water gun 2 completes sand cleaning of the groove of the right rear bracket 4 of the engine on the support plate 303, the first drive device 305 drives the pressure plate 302 to move upward. After the pressure plate 302 moves to the top, the telescopic spring 309 is in a stretched state, which can make the bottom of the support plate 303 close to the first limit block 307 at the bottom of the lifting rod 306, so that the support plate 303 can work together with the telescopic spring 309 and the lifting rod 306 to ensure that the upper surface of the support plate 303 is level and on the same horizontal plane as the conveying surface of the conveying unit 1, thereby ensuring the stability of the support plate 303 after it moves up and resets.

[0030] The first bracket 301 is provided with a second limit block 310 or a first groove for limiting the compression of the telescopic spring 309. The second limit block 310 is located below the support plate 303. When the pressure plate 302 presses the engine right rear bracket 4 and the support plate 303 downward, the first groove or the second limit block 310 can be used to protect the telescopic spring 309 and prevent the telescopic spring 309 from being completely compressed, thereby reducing the power of the first driving device 305 to drive the pressure plate 302 to move downward, and at the same time can improve the stability of the pressure plate 302 and the support plate 303 clamping and fixing the casting.

[0031] A sensing device 6 is provided above the support plate 303, and the sensing device 6 is electrically connected to the first driving device 305. Preferably, the sensing device 6 is a proximity switch, and the electrical connection method between the sensing device 6 and the first driving device 305 is the existing technology. The sensing device 6 is located at the output end of the support plate 303. When the sensing device 6 senses that the casting of the right rear bracket 4 of the engine is placed above the support plate 303, the first driving device 305 drives the pressure plate 302 to move downward, and works together with the support plate 303 to clamp and fix the casting.

[0032] After the pressure plate 302 and the support plate 303 clamp and fix the right rear bracket 4 of the engine, the upper surface of the pressure plate 302 is higher than the upper surface of the conveying unit 1. When the high-pressure water gun 2 cleans the sand from the right rear bracket 4 of the engine, the pressure plate 302 can prevent the casting on the conveying unit 1 from continuing to move toward the upper support plate 303.

[0033] like Figure 1 , Figure 4 and Figure 5 As shown, the second bracket 5 is provided with a second driving device 7 for driving the high-pressure water gun 2 to swing, and the high-pressure water gun 2 is rotatably connected to the second bracket 5 through a connecting seat 201, and the rotating shaft of the connecting seat 201 is provided with a gear 202. The second driving device 7 can drive the high-pressure water gun 2 to swing back and forth within a certain angle range, so that the high-pressure water gun 2 cleans the sand shell in the groove of the right rear bracket 4 of the engine, and the second driving device 7 includes a spur gear 701 and a cylinder 702, and the cylinder 702 is connected to the spur gear 701, and the spur gear 701 is meshed with the gear 202, and the cylinder 702 drives the spur gear 701 to move back and forth, so that the gear 202 rotates forward and reverse, thereby realizing the reciprocating swing of the gun body of the high-pressure water gun 2, and realizing the cleaning of the bottom of the weight-reducing deep groove and the four-corner sand shells of the right rear bracket 4 of the engine.

[0034] During work, the worker places the front bracket 401 of the right rear bracket 4 of the engine on the conveying unit 1 with the base 402 facing downward and upward, and the driving motor of the conveying unit 1 drives the conveying roller 103 to rotate, thereby conveying the casting of the right rear bracket 4 of the engine on the conveying unit 1 to the support plate 303 of the clamping and fixing unit 3; after the conveying unit 1 conveys the casting to the top of the support plate 303, the first driving device 305 drives the pressing plate 302 to move downward, and the pressing plate 302 presses the support plate 303 and the casting downward, so that the bottom of the support plate 303 contacts the first bracket 301 or the bottom of the support plate 303 contacts the second limit block 310, and then the pressing plate 302 and the support plate 303 clamp the casting on the first bracket 301, and at the same time, the bottom of the casting contacts the pad 304, and the pad 305 contacts the second limit block 310. 04 supports the bottom of the casting; then the high-pressure water gun 2 is aimed at the groove of the casting, and water with a certain pressure is sprayed into the groove of the casting, so as to clean up the sand shell in the groove, especially the bottom of the groove; after completing the sand cleaning, the first driving device 305 drives the pressure plate 302 to move upward, and the pressure plate 302 drives the high-pressure water gun 2 to move upward synchronously. At the same time, under the action of the lifting rod 306 and the telescopic spring 309, the support plate 303 and the casting are also lifted up until the surface of the support plate 303 and the conveying surface of the conveying unit 1 are in the same plane or slightly lower than the upper surface of the conveying pipe, then the conveying unit 1 continues to convey the casting to the support plate 303, and the casting that has been cleaned of sand on the support plate 303 is moved out from the output end of the support plate 303, and the sand cleaning process of the deep groove casting is repeated in this way.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A high-pressure hydraulic sand cleaning device for deep groove castings, characterized in that: The invention comprises a conveying unit (1), a high-pressure water gun (2) and a pressing and fixing unit (3), wherein the pressing and fixing unit (3) is located at the output end of the conveying unit (1), the conveying unit (1) comprises a conveying frame (101), the conveying frame (101) is provided with a moving space (102), conveying rollers (103) located on both sides of the moving space (102), and a driving motor for driving the conveying rollers (103) to rotate, and the pressing and fixing unit (3) comprises a first bracket (301), wherein the first bracket (301) is provided with A pressing plate (302), a supporting plate (303) and a pad (304), wherein the supporting plate (303) is arranged correspondingly to the conveying roller (103), the pressing plate (302) and the supporting plate (303) are arranged correspondingly, the pressing plate (302) and the supporting plate (303) are movably connected to the first bracket (301), the first bracket (301) is provided with a first driving device (305) for driving the pressing plate (302) to reciprocate up and down, the pad (304) is located below the high-pressure water gun (2), and the right rear bracket (4) of the engine After being fixed to the clamping and fixing unit (3), the end of the front bracket (401) of the right rear bracket (4) of the engine contacts the pad (304), and the high-pressure water gun (2) is connected to the pressing plate (302) via the second bracket (5); the pressing plate (302) is provided with a lifting rod (306), one end of the lifting rod (306) is fixedly connected to the pressing plate (302), and the other end is movably connected to the support plate (303); the lifting rod (306) passes through the support plate (303) and is connected to the first limit block (307); After the pressure plate (302) moves to the uppermost position, the bottom of the support plate (303) contacts the first limit block (307), and the upper surface of the support plate (303) and the conveying surface of the conveying unit (1) are located in the same plane; the support plate (303) is movably connected to the first bracket (301) via a guide rod (308), and a telescopic spring (309) is sleeved on the outside of the guide rod (308), and one end of the telescopic spring (309) is connected to the bottom of the support plate (303), and the other end is connected to the first bracket (301).

2. A high-pressure hydraulic sand cleaning device for deep groove castings according to claim 1, characterized in that: The first bracket (301) is provided with a second limiting block (310) or a first groove for limiting the compression of the telescopic spring (309).

3. A high-pressure hydraulic sand cleaning device for deep groove castings according to claim 1, characterized in that: A sensing device (6) is provided above the support plate (303), and the sensing device (6) is electrically connected to the first driving device (305).

4. A high-pressure hydraulic sand cleaning device for deep groove castings according to claim 1, characterized in that: After the pressing plate (302) and the supporting plate (303) clamp and fix the right rear bracket (4) of the engine, the upper surface of the pressing plate (302) is higher than the upper surface of the conveying unit (1).

5. A high-pressure hydraulic sand cleaning device for deep groove castings according to claim 1, characterized in that: The high-pressure water gun (2) is rotatably connected to the second bracket (5) via a connecting seat (201); a rotating shaft of the connecting seat (201) is provided with a gear (202); the second bracket (5) is provided with a second driving device (7) for driving the high-pressure water gun (2) to swing; the second driving device (7) comprises a spur gear (701) and a cylinder (702); the cylinder (702) is connected to the spur gear (701), and the spur gear (701) is meshed with the gear (202).

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