A sandblasting and polishing device for diesel engine housing appearance

Abstract

The invention discloses a sandblasting and polishing device for the appearance of a diesel engine housing, which belongs to the technical field of sandblasting equipment. Two slide rails are connected with a sandblasting and polishing mechanism in a horizontal sliding direction. A clamping mechanism is arranged on a connecting tube, a rotating mechanism is arranged at the bottom of a chassis, and sandblasting abrasives are stored in a storage box. The output end of the connecting tube is connected to the input end of the storage box, and a sandblasting and polishing mechanism is arranged on a second fixed plate. The output end of the storage box is connected to the input end of the sandblasting and polishing mechanism. The invention is convenient for performing comprehensive sandblasting and polishing on the appearance of the diesel engine housing by adjusting the distance between the sandblaster and the diesel engine housing, which can improve the polishing efficiency and effectively improve the processing efficiency and processing quality of the diesel engine housing. The sandblasting abrasive in the sandblaster is controlled to perform comprehensive sandblasting and polishing on the diesel engine housing to improve the surface finish. The polished sandblasting abrasive enters the sandblasting and polishing mechanism through the connecting tube and the storage box in turn, which is convenient for improving the utilization rate of the sandblasting abrasive.

Description

Technical Field

[0001] The invention belongs to the technical field of sandblasting equipment, and in particular relates to a sandblasting and polishing device for the appearance of a diesel engine casing. Background Art

[0002] The diesel engine housing appearance sandblasting and grinding device is a device used to clean, grind and surface treat the outer surface of the diesel engine housing. It is used to improve the appearance quality of the diesel engine housing, improve the surface finish, and remove surface oxides, dirt and unevenness.

[0003] In the existing diesel engine housing appearance sandblasting and polishing device, the diesel engine housing needs to be clamped multiple times during the sandblasting process before being sandblasted and polished, which will cause uneven surface treatment of the diesel engine housing, thereby affecting the appearance quality and performance of the product. At the same time, the dust and waste generated during the sandblasting process are not reasonably utilized, which will cause environmental pollution. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a diesel engine housing exterior sandblasting and polishing device which improves the polishing efficiency and the utilization rate of the sandblasting abrasive.

[0005] The technical solution adopted to solve the above technical problems is: a first support frame is arranged on the support seat, a support shell is arranged on the first support frame, a chassis is arranged on the top of the support shell, a second fixed plate is arranged on the chassis, slide rails are arranged on both sides of the second fixed plate, and the two slide rails are slidably connected with a sandblasting and grinding mechanism in a horizontal direction, a connecting cylinder is rotatably installed on the chassis and the second fixed plate, a clamping mechanism for fixing the diesel engine housing is arranged on the connecting cylinder, and a rotating mechanism for driving the clamping mechanism and the diesel engine housing to rotate is arranged at the bottom of the chassis, a first fixed plate is arranged between the first support frame and the support shell, a storage box located below the output end of the connecting cylinder is arranged on the first fixed plate, sandblasting abrasive is stored in the storage box, the output end of the connecting cylinder is connected to the input end of the storage box, a sandblasting and grinding mechanism for sandblasting and grinding the diesel engine housing is arranged on the second fixed plate, and the output end of the storage box is connected to the sandblasting and grinding mechanism The input ends are interconnected; the sandblasting and grinding mechanism is as follows: a discharge port that is interconnected with the output end of the storage box is processed on the first fixed plate, and a connecting shell that is interconnected with the output end of the discharge port is arranged at the bottom of the first fixed plate, and the sandblasting abrasive in the storage box enters the connecting shell, and the output ends at both ends of the connecting shell are respectively interconnected with the first pipe, and a second support frame is connected in a horizontal sliding direction in each slide rail, and each second support frame is respectively provided with a sandblaster located around the diesel engine housing, and each sandblaster is respectively provided with a displacement sensor for detecting the distance between the sandblaster and the diesel engine housing, and the output end of each first pipe is respectively communicated with the sandblaster, and each first pipe is respectively provided with a first air compressor that is interconnected therewith, and the input end of each sandblaster is respectively communicated with the output end of the second pipe, and the output end of the second air compressor is communicated with the input end of the second pipe.

[0006] Furthermore, second motors are respectively provided on both sides of the support shell, the output shaft of each second motor is respectively fixedly connected to the screw rod, each screw rod is respectively threadedly connected to the first slider, first guide rods are respectively provided on both sides of the support shell, the first slider is slidably connected to the first guide rod along the vertical direction, each first slider is rotatably connected to the second support frame through the fifth connecting rod, each second support frame is respectively slidably connected to the slide rail along the horizontal direction, and each second support frame is respectively fixedly connected to the sandblaster.

[0007] Furthermore, a third support frame is provided at the bottom of the connecting shell, and a third motor is provided on the third support frame. The output shaft of the third motor is fixedly connected to the third gear, and the third gear is meshed with the second gear for transmission. A rotating disk is rotatably installed at the bottom of the connecting shell, and the rotating disk is fixedly connected to the second gear. The rotating disk is evenly processed with fourth sliding holes in the circumferential direction of the rotating disk for sliding connection with the third support frame, and the rotating disk is evenly processed with fifth sliding holes in the circumferential direction of the rotating disk for sliding connection with the fourth sliding rod. The fourth sliding hole and the fifth sliding hole are arranged at intervals, and each fourth sliding rod is respectively provided with a second sliding block, and the second sliding block is fixedly connected to the push block through the third sliding rod, and each push block slides in the connecting shell for pushing the sandblasting abrasive in the connecting shell into the first pipeline.

[0008] Furthermore, telescopic rods are respectively provided on both sides of the bottom of the connecting shell, each telescopic rod is respectively connected with a baffle in a vertical sliding direction, each baffle is respectively connected to the inside of the connecting shell in a vertical sliding direction to block the sandblasting abrasive in the connecting shell, each telescopic rod is respectively provided with a spring, one end of the spring is fixedly connected to the baffle, and the other end of the spring is respectively fixedly connected to the bottom of the connecting shell, and interference blocks are evenly arranged in the circumferential direction of the rotating disk, and each interference block is respectively processed with an inclined surface that interferes with the baffle.

[0009] Furthermore, the fourth sliding hole is an arc sliding hole, and the fifth sliding hole is a vertical sliding hole.

[0010] Furthermore, the bottom of the first fixed plate is provided with second fixed plates located on both sides of the connecting shell, each second fixed plate is respectively processed with a second sliding hole connected to the third sliding rod in a horizontal direction, and the two sides of the connecting shell are respectively processed with third sliding holes connected to the third sliding rod in a horizontal direction.

[0011] Furthermore, the clamping mechanism is as follows: a support plate for placing a diesel engine casing is provided on the connecting cylinder, a first fixed plate is provided inside the connecting cylinder, a second electric cylinder is provided at the bottom of the first fixed plate, an output end of the second electric cylinder is fixedly connected to the sliding rod, the sliding rod is slidably connected to the first fixed plate in a vertical direction, a fixed block is provided at the top of the sliding rod, fourth connecting rods are rotatably installed on both sides of the fixed block, a sliding block slidably connected to the sliding rod in a vertical direction is fixedly installed on the first fixed plate, third connecting rods are rotatably installed on both sides of the sliding block, the fourth connecting rod and the third connecting rod on the same side are rotatably connected to the second connecting rod, a first connecting rod rotatably installed with the support plate is rotatably installed on each second connecting rod, and a clamping plate for pressing the diesel engine casing and the support plate is provided on each first connecting rod.

[0012] Furthermore, a plurality of first connecting cylinders are arranged between the first fixed plate and the support plate, a third electric cylinder is arranged inside each first connecting cylinder, an output end of the third electric cylinder is fixedly connected to a fixing pin, first sliding holes are evenly processed in a circumferential direction of the first connecting cylinder, and first sliding rods are evenly arranged in a circumferential direction of the fixing pin and are slidably connected to the first sliding holes in a vertical direction.

[0013] Furthermore, the rotating mechanism is as follows: a fixing frame is provided at the bottom of the chassis, a first motor is provided on the fixing frame, an output shaft of the first motor is fixedly connected to the first gear, a gear ring meshing with the first gear is provided in the circumferential direction of the connecting cylinder, a connecting shaft is evenly installed in the circumferential direction of the chassis, an auxiliary wheel rollingly connected to the outer circumference of the connecting cylinder is provided at the top of each connecting shaft, a bearing is provided inside the auxiliary wheel, a second connecting cylinder is evenly provided on the outer circumference of the connecting cylinder, a ball rollingly connected to the connecting ring is provided inside each second connecting cylinder, and the connecting ring is fixedly connected to the inside of the chassis.

[0014] Furthermore, a bracket is provided on one side of the support seat, a first electric cylinder is provided on the bracket, an output end of the first electric cylinder is fixedly connected to a cover body, the cover body covers the second fixed plate, and a second guide rod is provided on the bracket and is slidably connected to the cover body in a vertical direction.

[0015] The beneficial effects of the present invention are as follows: (1) The present invention adopts a clamping plate to clamp and fix the diesel engine housing and the support plate. While the diesel engine housing is rotating, the displacement sensor on the sandblaster is used to detect the distance between the sandblaster and the diesel engine housing. The second support frame drives the sandblaster to move in the horizontal direction, thereby achieving the purpose of adjusting the distance between the sandblaster and the diesel engine housing, facilitating the comprehensive sandblasting and polishing of the appearance of the diesel engine housing, improving the polishing efficiency, and effectively improving the diesel engine housing processing efficiency and processing quality; (2) The present invention adopts a push block in the connecting housing The connecting tube reciprocates in the middle, forcing the sandblasting abrasive in the connecting shell to be continuously pushed into the first pipe with great force. The baffle reciprocates in the connecting shell along the vertical direction to block the sandblasting abrasive in the connecting shell, and can control the amount of sandblasting abrasive in the storage box entering the first pipe. The second air compressor controls the sandblasting abrasive in the sandblaster through the second pipe, and sandblasts and polishes the diesel engine housing in an all-round way to improve the surface finish. (3) The present invention adopts the method that the polished sandblasting abrasive enters the sandblasting and polishing mechanism through the connecting tube and the storage box in turn, so as to improve the utilization rate of the sandblasting abrasive. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of a sandblasting and polishing device for the exterior of a diesel engine housing of the present invention;

[0017] Figure 2 yes Figure 1 A schematic diagram of the structure from another angle;

[0018] Figure 3 yes Figure 1 A schematic diagram of the internal structure of the middle cover body, the support shell and the first support frame;

[0019] Figure 4 It is a structural schematic diagram of the connecting tube;

[0020] Figure 5 It is a structural schematic diagram of the clamping mechanism and the rotating mechanism;

[0021] Figure 6 yes Figure 5 A schematic diagram of a structure in which some parts are removed;

[0022] Figure 7 yes Figure 6 A schematic diagram of a structure in which some parts are removed;

[0023] Figure 8 It is a structural diagram of the rotating mechanism;

[0024] Fig. 9 It is a schematic diagram of the parts structure on the connecting cylinder;

[0025] Fig.10 It is a schematic diagram of the parts structure on the training wheel;

[0026] Fig.11 It is a structural diagram of the sandblasting and grinding mechanism;

[0027] Fig.12 is a schematic diagram of the bottom structure of the first fixed plate;

[0028] Fig.13 yes Fig.11 A schematic diagram of the internal structure of the first support frame;

[0029] Fig.14 It is a schematic diagram of the parts structure on the rotating disk;

[0030] Fig.15 yes Fig.14 A schematic diagram of a structure in which some parts are removed;

[0031] Fig.16 It is a structural schematic diagram of the rotating disk.

[0032] Reference numerals: 1, cover; 2, bracket; 3, support shell; 4, support seat; 5, first support frame; 6, first fixing plate; 701, first connecting rod; 702, pressing plate; 703, second connecting rod; 704, supporting plate; 705, first connecting tube; 706, first fixing plate; 707, second electric cylinder; 708, third connecting rod; 709, fourth connecting rod; 710, fixing block; 711, fixing pin; 712 , first slide bar; 713, first slide hole; 714, slide block; 715, slide bar; 801, first motor; 802, auxiliary wheel; 803, fixed frame; 804, first gear; 805, gear ring; 806, second connecting tube; 807, ball bearing; 808, connecting ring; 809, connecting shaft; 810, bearing; 901, second motor; 902, screw rod; 903, first pipe; 904, first slide bar ; 905, first guide rod; 906, fifth connecting rod; 907, second support frame; 908, second pipeline; 909, sandblaster; 910, displacement sensor; 911, second slide hole; 912, third slide hole; 913, connecting shell; 914, discharge port; 915, second fixed plate; 916, second gear; 917, third support frame; 918, rotating disk; 919, resistance block; 920, third slide rod ; 921, second slider; 922, push block; 923, telescopic rod; 924, spring; 925, baffle; 926, fourth slider; 927, third gear; 928, fourth slide hole; 929, fifth slide hole; 930, third motor; 10, second guide rod; 11, first electric cylinder; 12, storage box; 13, chassis; 14, second fixed plate; 15, slide rail; 16, diesel engine housing; 17, connecting tube. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] like Figures 1 to 4 As shown, the diesel engine casing appearance sandblasting and polishing device of this embodiment is composed of a cover body 1, a bracket 2, a support casing 3, a support seat 4, a first support frame 5, a first fixed plate 6, a clamping mechanism, a rotating mechanism, a sandblasting and polishing mechanism, a second guide rod 10, a first electric cylinder 11, a storage box 12, a chassis 13, a second fixed plate 14, a slide rail 15, a diesel engine casing 16, and a connecting tube 17.

[0035] A first support frame 5 is arranged on the support seat 4, a support shell 3 is arranged on the first support frame 5, a chassis 13 is arranged on the top of the support shell 3, a second fixed plate 14 is arranged on the chassis 13, a bracket 2 is arranged on one side of the support seat 4, a first electric cylinder 11 is arranged on the bracket 2, an output end of the first electric cylinder 11 is fixedly connected to the cover body 1, the cover body 1 covers the second fixed plate 14, and a second guide rod 10 is arranged on the bracket 2 and is slidably connected to the cover body 1 in a vertical direction.

[0036] Slide rails 15 are respectively provided on both sides of the second fixed disk 14, and the two slide rails 15 are slidably connected with a sandblasting and grinding mechanism in a horizontal direction. A connecting cylinder 17 is rotatably installed on the chassis 13 and the second fixed disk 14, and a clamping mechanism for fixing the diesel engine housing 16 is provided on the connecting cylinder 17. A rotating mechanism for driving the clamping mechanism and the diesel engine housing 16 to rotate is provided at the bottom of the chassis 13. A first fixed disk 6 is provided between the first supporting frame 5 and the supporting housing 3. A storage box 12 located below the output end of the connecting cylinder 17 is provided on the first fixed disk 6, and sandblasting abrasive is stored in the storage box 12. The output end of the connecting cylinder 17 is connected to the input end of the storage box 12. A sandblasting and grinding mechanism for sandblasting the diesel engine housing 16 is provided on the second fixed disk 14, and the output end of the storage box 12 is connected to the input end of the sandblasting and grinding mechanism.

[0037] like Figures 5 to 7 As shown, the clamping mechanism is composed of a first connecting rod 701, a clamping plate 702, a second connecting rod 703, a support plate 704, a first connecting tube 705, a first fixing plate 706, a second electric cylinder 707, a third connecting rod 708, a fourth connecting rod 709, a fixing block 710, a fixing pin 711, a first sliding rod 712, a first sliding hole 713, a sliding block 714, and a sliding rod 715.

[0038] The clamping mechanism is as follows: a support plate 704 for placing the diesel engine housing 16 is provided on the connecting cylinder 17, a first fixing plate 706 is provided inside the connecting cylinder 17, a second electric cylinder 707 is provided at the bottom of the first fixing plate 706, an output end of the second electric cylinder 707 is fixedly connected to a sliding rod 715, the sliding rod 715 is slidably connected to the first fixing plate 706 in a vertical direction, a fixing block 710 is provided at the top of the sliding rod 715, and fourth connecting rods 709 are rotatably installed on both sides of the fixing block 710, and the first fixing A sliding block 714 is fixedly installed on the plate 706 and is slidably connected to the sliding rod 715 in a vertical direction. The third connecting rods 708 are rotatably installed on both sides of the sliding block 714. The fourth connecting rod 709 and the third connecting rod 708 on the same side are rotatably connected to the second connecting rod 703 respectively. A first connecting rod 701 rotatably installed with the support plate 704 is respectively rotatably installed on each second connecting rod 703, and a clamping plate 702 for clamping the diesel engine housing 16 and the support plate 704 is respectively provided on each first connecting rod 701.

[0039] A plurality of first connecting cylinders 705 are arranged between the first fixed plate 706 and the support plate 704, a third electric cylinder is arranged inside each first connecting cylinder 705, an output end of the third electric cylinder is fixedly connected to a fixing pin 711, first sliding holes 713 are uniformly processed in a circumferential direction of the first connecting cylinder 705, and first sliding rods 712 slidably connected to the first sliding holes 713 in a vertical direction are uniformly arranged in a circumferential direction of the fixing pin 711.

[0040] like Figure 5 , Figures 8 to 9 As shown, the rotating mechanism is composed of a first motor 801, an auxiliary wheel 802, a fixing frame 803, a first gear 804, a gear ring 805, a second connecting tube 806, a ball 807, a connecting ring 808, a connecting shaft 809, and a bearing 810.

[0041] The rotating mechanism is as follows: a fixing frame 803 is provided at the bottom of the chassis 13, a first motor 801 is provided on the fixing frame 803, an output shaft of the first motor 801 is fixedly connected to the first gear 804, a gear ring 805 meshing with the first gear 804 is provided in the circumferential direction of the connecting tube 17, a connecting shaft 809 is evenly installed in the circumferential direction of the chassis 13, an auxiliary wheel 802 rollingly connected to the outer circumference of the connecting tube 17 is provided at the top of each connecting shaft 809, a bearing 810 is provided inside the auxiliary wheel 802, a second connecting tube 806 is evenly provided on the outer circumference of the connecting tube 17, a ball 807 rollingly connected to the connecting ring 808 is provided inside each second connecting tube 806, and the connecting ring 808 is fixedly connected to the inside of the chassis 13.

[0042] like Figures 10 to 15 As shown, the sandblasting and grinding mechanism is composed of a second motor 901, a screw rod 902, a first pipe 903, a first slider 904, a first guide rod 905, a fifth connecting rod 906, a second support frame 907, a second pipe 908, a sandblaster 909, a displacement sensor 910, a second slide hole 911, a third slide hole 912, a connecting shell 913, a discharge port 914, a second fixed plate 915, a second gear 916, a third support frame 917, a rotating disk 918, a resistance block 919, a third slide bar 920, a second slider 921, a push block 922, a telescopic rod 923, a spring 924, a baffle 925, a fourth slide bar 926, a third gear 927, a fourth slide hole 928, a fifth slide hole 929, and a third motor 930.

[0043] The sandblasting and grinding mechanism is as follows: a discharge port 914 is processed on the first fixed plate 6 and is interconnected with the output end of the storage box 12; a connecting shell 913 is provided at the bottom of the first fixed plate 6 and is interconnected with the output end of the discharge port 914; the sandblasting abrasive in the storage box 12 enters the connecting shell 913; the output ends at both ends of the connecting shell 913 are respectively interconnected with the first pipe 903; each slide rail 15 is horizontally slidably connected with a second support frame 907; each second support frame 907 is respectively provided with a second support frame 907 located on the diesel engine housing; The sandblasters 909 are arranged around the diesel engine housing 16, and each sandblaster 909 is provided with a displacement sensor 910 for detecting the distance between the sandblaster 909 and the diesel engine housing 16. The output end of each first pipeline 903 is communicated with the sandblaster 909, and each first pipeline 903 is provided with a first air compressor communicated with it. The input end of each sandblaster 909 is communicated with the output end of the second pipeline 908, and the output end of the second air compressor is communicated with the input end of the second pipeline 908.

[0044] A second motor 901 is respectively arranged on both sides of the support shell 3, and the output shaft of each second motor 901 is respectively fixedly connected to the screw rod 902, and each screw rod 902 is respectively threadedly connected to the first slider 904, and a first guide rod 905 is respectively arranged on both sides of the support shell 3. The first slider 904 is slidably connected to the first guide rod 905 along the vertical direction, and each first slider 904 is rotatably connected to the second support frame 907 through the fifth connecting rod 906, and each second support frame 907 is respectively slidably connected to the slide rail 15 along the horizontal direction, and each second support frame 907 is respectively fixedly connected to the sandblaster 909.

[0045] A third support frame 917 is provided at the bottom of the connecting shell 913, and a third motor 930 is provided on the third support frame 917. The output shaft of the third motor 930 is fixedly connected to the third gear 927, and the third gear 927 is meshed with the second gear 916 for transmission. A rotating disk 918 is rotatably installed at the bottom of the connecting shell 913, and the rotating disk 918 is fixedly connected to the second gear 916. The rotating disk 918 is uniformly processed with fourth sliding holes 928 slidably connected to the third support frame 917 in the circumferential direction, and the rotating disk 918 is uniformly processed with fifth sliding holes 929 slidably connected to the fourth sliding rod 926 in the circumferential direction. The hole 928 is an arc sliding hole, the fifth sliding hole 929 is a vertical sliding hole, the fourth sliding hole 928 and the fifth sliding hole 929 are arranged at intervals, each fourth sliding rod 926 is respectively provided with a second sliding block 921, and the second sliding block 921 is fixedly connected to the push block 922 through the third sliding rod 920. The bottom of the first fixed plate 6 is provided with a second fixed plate 915 located on both sides of the connecting shell 913, each second fixed plate 915 is respectively processed with a second sliding hole 911 connected to the third sliding rod 920 in a horizontal direction, and the two sides of the connecting shell 913 are respectively processed with a third sliding hole 912 connected to the third sliding rod 920 in a sliding manner. Each push block 922 slides in the connecting shell 913 to push the sandblasting abrasive in the connecting shell 913 into the first pipeline 903.

[0046] Telescopic rods 923 are respectively provided on both sides of the bottom of the connecting shell 913, and each telescopic rod 923 is respectively connected with a baffle 925 in a vertical sliding direction. Each baffle 925 is respectively connected to the inside of the connecting shell 913 in a vertical sliding direction to block the sandblasting abrasive in the connecting shell 913. A spring 924 is respectively provided on each telescopic rod 923, one end of the spring 924 is fixedly connected to the baffle 925, and the other end of the spring 924 is respectively fixedly connected to the bottom of the connecting shell 913. The rotating disk 918 is evenly provided with resistance blocks 919 in the circumferential direction, and each resistance block 919 is respectively processed with an inclined surface that resists the baffle 925.

[0047] The working principle of this embodiment is as follows: (1) Pressing and fixing the diesel engine housing 16: the output end of the first electric cylinder 11 drives the cover body 1 to move in the vertical direction on the second guide rod 10 of the bracket 2, opens the cover body 1, separates the cover body 1 from the second fixed plate 14, places the diesel engine housing 16 on the support plate 704, starts the second electric cylinder 707, and the output end of the second electric cylinder 707 drives the sliding rod 715 to slide in the vertical direction on the first fixed plate 706. The sliding rod 715 drives the fourth connecting rod 709 on both sides to rotate through the fixed block 710. The fourth connecting rod 709 and the third connecting rod 708 on both sides respectively drive the second connecting rod 703 to rotate. The third connecting rod 708 rotates on the sliding block 714. The second connecting rod 703 drives the first connecting rod 701 to move. The first connecting rod 701 drives the pressing plate 702 to press down, and the diesel engine housing 16 and the support plate 704 are pressed and fixed.

[0048] At the same time, the third electric cylinder at the bottom of each fixing pin 711 drives the fixing pin 711 to slide in the first connecting tube 705, and the first sliding rod 712 in the circumferential direction of the fixing pin 711 slides in the vertical direction in the first sliding hole 713 of the first connecting tube 705, and the fixing pin 711 fixes the diesel engine housing 16 and the support plate 704 in position.

[0049] (2) The diesel engine housing 16 is rotated and sandblasted at the same time: the output shaft of the first motor 801 drives the first gear 804 to rotate, and the first gear 804 drives the connecting tube 17 to rotate by meshing with the ring gear 805. The connecting tube 17 drives the clamping mechanism and the diesel engine housing 16 to rotate. The outer circumference of the connecting tube 17 is rollingly connected with the auxiliary wheel 802 in the circumferential direction of the chassis 13. The bearing 810 in each auxiliary wheel 802 is used to reduce friction. At the same time, when the connecting tube 17 rotates, the ball 807 on the outer circumferential direction of the top of the connecting tube 17 is rollingly connected with the connecting ring 808 to reduce friction.

[0050] During the rotation of the diesel engine housing 16 and the clamping mechanism, the displacement sensor 910 on the sandblaster 909 detects the distance between the sandblaster 909 and the diesel engine housing 16. The displacement sensor 910 converts the received distance information into an electrical signal and sends it to the controller. The controller controls the start and stop of the second motor 901. The controller adopts a well-known technology. When the distance between the sandblaster 909 and the diesel engine housing 16 is less than the predetermined distance, the two second motors 901 are started. The output shaft of each second motor 901 drives the screw rod 902 to rotate respectively. The first slider 904 moves in a vertical direction on the screw rod 902. The first slider 904 drives the second support frame 907 to slide in a horizontal direction on the slide rail 15 through the fifth connecting rod 906. The second support frame 907 drives the sandblaster 909 to move in a horizontal direction. The sandblaster 909 moves in a direction away from the diesel engine housing 16. When the distance between the sandblaster 909 and the diesel engine housing 16 is greater than the predetermined distance, the sandblaster 909 moves in a direction close to the diesel engine housing 16 in the same way as the above working principle.

[0051] The sandblasting abrasive in the storage box 12 flows into the connecting shell 913 through the discharge port 914 on the first fixed plate 6, and the third motor 930 is started. The output shaft of the third motor 930 drives the third gear 927 to rotate. The third gear 927 is driven by meshing with the second gear 916, and the second gear 916 drives the rotating disk 918 to rotate. During the rotation of the rotating disk 918, each fourth slide bar 926 slides in the fifth slide hole 929 of the rotating disk 918 respectively, and the fourth slide bar 926 drives the third slide bar 920 to slide back and forth in the second slide hole 911 of the second fixed plate 915 through the second slide block 921. At the same time, the third slide bar 920 slides back and forth in the third slide hole 912 of the connecting shell 913, and the third slide bar 920 drives the push block 922 to slide back and forth in the connecting shell 913. The reciprocating motion strongly pushes the sandblasting abrasive in the connecting shell 913 into the first pipe 903. When the rotating disk 918 rotates, the abutment block 919 on the rotating disk 918 abuts against the baffle 925. The baffle 925 slides back and forth in the vertical direction in the connecting shell 913 to block the sandblasting abrasive in the connecting shell 913. The amount of sandblasting abrasive in the storage box 12 entering the first pipe 903 can be controlled. The sandblasting abrasive in the first pipe 903 is transported to the sandblaster 909 by the first air compressor. The second air compressor controls the sandblasting abrasive in the sandblaster 909 through the second pipe 908, and the diesel engine housing 16 is fully sandblasted. During the sandblasting process, the cover body 1 needs to cover the second fixed disk 14 as in the above principle.

[0052] At the same time, the sandblasting abrasive after grinding enters the sandblasting and grinding mechanism through the connecting tube 17 and the material storage box 12 in sequence, so as to improve the utilization rate of the sandblasting abrasive.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A sandblasting and polishing device for the exterior of a diesel engine housing, characterized in that: A first support frame (5) is arranged on the support seat (4), a support shell (3) is arranged on the first support frame (5), a chassis (13) is arranged on the top of the support shell (3), a second fixed plate (14) is arranged on the chassis (13), slide rails (15) are arranged on both sides of the second fixed plate (14), the two slide rails (15) are connected with a sandblasting mechanism in a sliding manner in a horizontal direction, a connecting tube (17) is rotatably mounted on the chassis (13) and the second fixed plate (14), a pressing mechanism for fixing the diesel engine shell (16) is arranged on the connecting tube (17), and a bottom of the chassis (13) is arranged A rotating mechanism is provided for driving the pressing mechanism and the diesel engine housing (16) to rotate; a first fixed disk (6) is provided between the first support frame (5) and the support housing (3); a material storage box (12) is provided on the first fixed disk (6) and is located below the output end of the connecting tube (17); sandblasting abrasive is stored in the material storage box (12); the output end of the connecting tube (17) and the input end of the material storage box (12) are connected to each other; a sandblasting and grinding mechanism for sandblasting and grinding the diesel engine housing (16) is provided on the second fixed disk (14); the output end of the material storage box (12) and the input end of the sandblasting and grinding mechanism are connected to each other; The sandblasting and grinding mechanism comprises: a first fixed plate (6) is processed with a discharge port (914) which is interconnected with the output end of the material storage box (12); a connecting shell (913) which is interconnected with the output end of the discharge port (914) is arranged at the bottom of the first fixed plate (6); the sandblasting abrasive in the material storage box (12) enters the connecting shell (913); the output ends at both ends of the connecting shell (913) are respectively interconnected with the first pipeline (903); each slide rail (15) is slidably connected to a second support frame (907) in a horizontal direction; each second support frame (907) is respectively provided with a Sandblasters (909) are arranged around the engine housing (16), each sandblaster (909) is provided with a displacement sensor (910) for detecting the distance between the sandblaster (909) and the engine housing (16), the output end of each first pipeline (903) is communicated with the sandblaster (909), each first pipeline (903) is provided with a first air compressor communicated with the first pipeline (903), the input end of each sandblaster (909) is communicated with the output end of the second pipeline (908), and the output end of the second air compressor is communicated with the input end of the second pipeline (908); The bottom of the connecting shell (913) is provided with a third support frame (917), and the third support frame (917) is provided with a third motor (930). The output shaft of the third motor (930) is fixedly connected to the third gear (927), and the third gear (927) is meshed with the second gear (916) for transmission. A rotating disk (918) is rotatably installed at the bottom of the connecting shell (913), and the rotating disk (918) is fixedly connected to the second gear (916). The rotating disk (918) is uniformly processed in the circumferential direction with fourth sliding wheels slidably connected to the third support frame (917). The rotating disk (918) is provided with a fifth sliding hole (929) uniformly processed in the circumferential direction and slidably connected to the fourth sliding rod (926). The fourth sliding hole (928) and the fifth sliding hole (929) are arranged at intervals. Each fourth sliding rod (926) is respectively provided with a second sliding block (921). The second sliding block (921) is fixedly connected to a push block (922) through a third sliding rod (920). Each push block (922) slides in the connecting shell (913) to push the sandblasting abrasive in the connecting shell (913) into the first pipe (903).

2. The diesel engine housing exterior sandblasting and polishing device according to claim 1, characterized in that: The support shell (3) is provided with a second motor (901) on both sides, the output shaft of each second motor (901) is fixedly connected to the screw rod (902), each screw rod (902) is threadedly connected to the first slider (904), the support shell (3) is provided with a first guide rod (905) on both sides, the first slider (904) is slidably connected to the first guide rod (905) in a vertical direction, each first slider (904) is rotatably connected to the second support frame (907) via a fifth connecting rod (906), each second support frame (907) is slidably connected to the slide rail (15) in a horizontal direction, and each second support frame (907) is fixedly connected to the sandblaster (909).

3. The diesel engine housing exterior sandblasting and polishing device according to claim 1, characterized in that: Telescopic rods (923) are respectively arranged on both sides of the bottom of the connecting shell (913), and each telescopic rod (923) is respectively slidably connected to a baffle (925) in a vertical direction. Each baffle (925) is respectively slidably connected to the inside of the connecting shell (913) in a vertical direction for blocking the sandblasting abrasive in the connecting shell (913). Each telescopic rod (923) is respectively arranged with a spring (924), one end of the spring (924) is fixedly connected to the baffle (925), and the other end of the spring (924) is respectively fixedly connected to the bottom of the connecting shell (913). The rotating disk (918) is evenly provided with abutment blocks (919) in a circumferential direction, and each abutment block (919) is respectively processed with an inclined surface that abuts against the baffle (925).

4. The diesel engine housing exterior sandblasting and polishing device according to claim 1, characterized in that: The fourth sliding hole (928) is a circular sliding hole, and the fifth sliding hole (929) is a vertical sliding hole.

5. The diesel engine housing exterior sandblasting and polishing device according to claim 1, characterized in that: The bottom of the first fixed plate (6) is provided with second fixed plates (915) located on both sides of the connecting shell (913), each second fixed plate (915) is respectively processed with a second sliding hole (911) connected to the third sliding rod (920) in a horizontal direction, and the two sides of the connecting shell (913) are respectively processed with third sliding holes (912) connected to the third sliding rod (920) in a horizontal direction.

6. The diesel engine housing exterior sandblasting and polishing device according to claim 1, characterized in that: The clamping mechanism comprises: a supporting plate (704) for placing a diesel engine housing (16) is arranged on the connecting tube (17); a first fixing plate (706) is arranged inside the connecting tube (17); a second electric cylinder (707) is arranged at the bottom of the first fixing plate (706); an output end of the second electric cylinder (707) is fixedly connected to a sliding rod (715); the sliding rod (715) is slidably connected to the first fixing plate (706) in a vertical direction; a fixing block (710) is arranged at the top of the sliding rod (715); fourth connecting rods (709) are rotatably installed on both sides of the fixing block (710); and the first fixing plate (706) is fixedly connected to the first fixing plate (706). A sliding block (714) is fixedly mounted on the fixed plate (706) and is slidably connected to the sliding rod (715) in a vertical direction. Third connecting rods (708) are rotatably mounted on both sides of the sliding block (714). The fourth connecting rod (709) and the third connecting rod (708) on the same side are rotatably connected to the second connecting rod (703). A first connecting rod (701) rotatably mounted on each second connecting rod (703) is rotatably mounted on each first connecting rod (701). A clamping plate (702) for clamping the diesel engine housing (16) and the supporting plate (704) is provided on each first connecting rod (701).

7. The diesel engine housing exterior sandblasting and polishing device according to claim 6, characterized in that: A plurality of first connecting cylinders (705) are arranged between the first fixing plate (706) and the supporting plate (704); a third electric cylinder is arranged inside each first connecting cylinder (705); an output end of the third electric cylinder is fixedly connected to a fixing pin (711); first sliding holes (713) are uniformly processed in a circumferential direction of the first connecting cylinder (705); and first sliding rods (712) are uniformly arranged in a circumferential direction of the fixing pin (711) and are slidably connected to the first sliding holes (713) in a vertical direction.

8. The diesel engine housing exterior sandblasting and polishing device according to claim 1, characterized in that: The rotating mechanism comprises: a fixing frame (803) is arranged at the bottom of the chassis (13); a first motor (801) is arranged on the fixing frame (803); an output shaft of the first motor (801) is fixedly connected to a first gear (804); a ring gear (805) meshing with the first gear (804) is arranged in the circumferential direction of the connecting tube (17); a connecting shaft (809) is evenly mounted on the chassis (13) in the circumferential direction; an auxiliary wheel (802) rollingly connected to the outer circumference of the connecting tube (17) is arranged at the top end of each connecting shaft (809); a bearing (810) is arranged inside the auxiliary wheel (802); second connecting tubes (806) are evenly arranged on the outer circumference of the connecting tube (17); a ball (807) rollingly connected to a connecting ring (808) is arranged inside each second connecting tube (806); and the connecting ring (808) is fixedly connected to the inside of the chassis (13).

9. The diesel engine housing exterior sandblasting and polishing device according to claim 1, characterized in that: A bracket (2) is provided on one side of the support seat (4), a first electric cylinder (11) is provided on the bracket (2), an output end of the first electric cylinder (11) is fixedly connected to the cover body (1), the cover body (1) covers the second fixed plate (14), and a second guide rod (10) is provided on the bracket (2) and is slidably connected to the cover body (1) in a vertical direction.

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