Hood polishing device for teller machine production

Abstract

The invention relates to the technical field of polishing devices, and discloses a machine cover polishing device for teller machine production, which comprises a belt type polishing mechanism and a negative pressure type limiting mechanism. According to the machine cover polishing device for teller machine production, the polishing belt capable of being bent and deformed is used for polishing a machine cover of the teller machine, the polishing belt can make contact with the outer convex face in an attached mode, the high-attaching effect is achieved, and therefore the polishing effect on the arc-shaped face of the machine cover is improved; the bent polishing belt can generate the same pressure on the contact part, so that the polishing pressure of the contact area is the same when the arc-shaped surface of the hood is polished, the phenomenon of different polishing depths caused by inconsistent polishing pressure is prevented, and the quality of a polished finished product is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding devices, in particular to a machine cover grinding device for ATM production. Background Art

[0002] At present, most of the bank teller machine grinding devices on the market have a relatively simple structure, which is not convenient for use in polishing the machine cover. Most of the machine cover bodies are curved, and the staff cannot polish the curved machine cover. Manual polishing is required to greatly improve work efficiency.

[0003] To this end, the Chinese patent with publication number "CN207824607U" announced "a grinding device for a hood", whose main structure includes a frame, an electric push rod, a machine body, a motor, a first pulley, a second pulley, a rotating rod and a first bearing. The grinding device for the hood, through the cooperation of the electric push rod and the machine body, can facilitate the staff to adjust the lateral angle of the machine body, and can facilitate the staff to grind the side of the hood, effectively reducing the effect of manual grinding of the hood, saving time and effort, and effectively improving work efficiency.

[0004] However, during actual use of the above-mentioned grinding device for the machine cover, since the angle of the grinding sheet needs to be adjusted multiple times during the grinding process, when the grinding sheet encounters a large curved surface, this type of grinding will cause the grinding areas of the two grinding sheets to have an inclination angle at the intersection, resulting in the occurrence of grinding angle stratification, which will eventually deteriorate the surface smoothness of the finished ATM casing. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a hood polishing device for ATM production, which utilizes a bendable and deformable polishing belt to polish the hood of the ATM. Since the polishing belt can make fitting contact with the outer convex surface, it has a highly fitting effect, thereby improving the polishing effect of the curved surface of the hood. At the same time, the bent polishing belt can generate the same pressure on the contact part, so that when the curved surface of the hood is polished, the polishing pressure in the contact area is the same, thereby preventing the occurrence of different polishing depths caused by inconsistent polishing pressure, further improving the quality of the finished product after polishing, and solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a machine cover grinding device for ATM production, comprising longitudinal support seats in a symmetrical state on both sides, a bottom mounting plate integrally arranged at the bottom of the longitudinal support seats, and a crossbeam fixedly installed on the top area of ​​the two longitudinal support seats, and also comprising a belt-type grinding mechanism, inside which are arranged a first pulley and a second pulley installed in the middle area of ​​the two longitudinal support seats and capable of rotating, a driving motor fixedly installed at one end of the first pulley and capable of driving the first pulley to rotate, and a circulating grinding belt sleeved on the periphery of the first pulley and the second pulley and capable of generating a circulating rotation with the first pulley and the second pulley; and a negative pressure limiting mechanism, inside which are arranged a first hollow shell fixedly installed directly below the crossbeam and located above the center area of ​​the first pulley and the second pulley, a piston body located inside the first hollow shell and moving upward after being acted upon by gas, and a third pulley moving with the piston body and capable of producing a tension adjustment effect on the circulating grinding belt.

[0007] Preferably, the belt-type grinding mechanism includes a No. 1 component fixing sleeve and a No. 2 component fixing sleeve, which are respectively located on one side of the two longitudinal support seats, and the outer circumferential surfaces of the No. 1 component fixing sleeve and the No. 2 component fixing sleeve are respectively fixedly installed with a curved connecting rod, and one end of each of the curved connecting rods is respectively fixedly installed with a longitudinal fixing plate, the longitudinal fixing plate located in the No. 1 component fixing sleeve area is fixedly installed on the side of one of the longitudinal support seats, and the longitudinal fixing plate located in the No. 2 component fixing sleeve area is fixedly installed on the side of the other longitudinal support seat, a driving motor is fixedly installed in the No. 1 component fixing sleeve, and a No. 1 pulley capable of rotating therewith is fixedly installed on the rotor end of the driving motor, a No. 1 shaft body placement hole is provided at the center of the No. 2 component fixing sleeve, and a No. 1 rotating shaft capable of rotating is installed in the No. 1 shaft body placement hole through a bearing in the No. 2 component fixing sleeve, a No. 2 pulley is fixedly installed on the end of the No. 1 rotating shaft, and a circulating grinding belt is placed on the outer periphery of the No. 1 pulley and the No. 2 pulley.

[0008] Preferably, the grinding surface of the circulating grinding belt faces outwards.

[0009] Preferably, the first pulley and the second pulley are symmetrically arranged with respect to the longitudinal symmetry plane of the longitudinal support seat.

[0010] Preferably, the negative pressure limiting mechanism includes a No. 1 hollow shell, the upper end surface of the No. 1 hollow shell is provided with a longitudinal hollow connecting shaft with an integral structure therewith, the top of the longitudinal hollow connecting shaft is provided with a No. 3 component fixing sleeve with an integral structure therewith, the center of the No. 3 component fixing sleeve is provided with a No. 2 shaft body placement hole fixedly installed on the periphery of the middle area of ​​the crossbeam, the interior of the No. 1 hollow shell is provided with a No. 1 component active cavity, the bottom end of the No. 1 hollow shell is provided with a polygonal rod hole connecting the space below it and the bottom end of the No. 1 component active cavity, the interior of the longitudinal hollow connecting shaft is provided with a No. 1 gas flow hole connecting the top end of the No. 1 component active cavity and the external space, and the No. 1 hollow shell is located in the No. 1 component active cavity. A piston body capable of axially moving along the movable cavity of component No. 1 is placed inside, and a longitudinal telescopic rod penetrating the polygonal rod hole is fixedly installed on the bottom of the piston body, and a No. 1 coil spring is sleeved on the outer periphery of the rod body located inside the movable cavity of component No. 1. A concave fixing frame is fixedly installed on the bottom end of the longitudinal telescopic rod located outside the No. 1 hollow shell, and a No. 3 shaft body placement hole is provided in the middle of two symmetrical vertical plate structures of the concave fixing frame, and a No. 3 rotating shaft is rotatably installed in the No. 3 shaft body placement hole through a bearing, and a No. 3 pulley with an integral structure with the No. 2 rotating shaft is provided between the two No. 2 rotating shafts, and the No. 3 pulley is placed in the circulating grinding belt, and at this time, the circulating grinding belt presents an isosceles triangle structure.

[0011] Preferably, the bottom end of the No. 1 coil spring abuts against the bottom end of the active cavity of the No. 1 component, the top end abuts against the bottom surface of the piston body, and the No. 1 coil spring is in a compressed state.

[0012] Preferably, the structural shape of the polygonal rod hole cross section is consistent with the structural shape of the longitudinal telescopic rod cross section, both are polygonal structures, and the structural dimensions of the polygonal rod hole cross section match the structural dimensions of the longitudinal telescopic rod cross section.

[0013] Preferably, it also includes an air pressure control mechanism, which is internally provided with a No. 2 hollow shell fixedly installed on one side of the longitudinal hollow connecting shaft and whose internal structure is connected to the No. 1 gas flow hole, and a valve plate placed inside the No. 2 hollow shell and capable of controlling the maximum gas pressure value in the active cavity of the No. 1 component.

[0014] Preferably, the air pressure control mechanism includes a No. 2 hollow shell, one end of the No. 2 hollow shell is provided with a transverse hollow connecting shaft with an integral structure therewith, one end of the transverse hollow connecting shaft is provided with a No. 4 component fixing sleeve with an integral structure therewith, the center of the No. 4 component fixing sleeve is provided with a No. 4 shaft body placement hole fixedly installed on the periphery of the longitudinal hollow connecting shaft shaft body, the interior of the No. 2 hollow shell is provided with a No. 2 component active cavity, one end of the No. 2 hollow shell is provided with a rod body through hole connecting the external space and the No. 2 component active cavity, the interior of the transverse hollow connecting shaft and the No. 4 component fixing sleeve is provided with a No. 3 gas flow hole connecting the No. 2 component active cavity and the No. 1 gas flow hole, and the No. 2 hollow shell is provided with a No. 2 component active cavity located inside the No. 2 component active cavity. A valve plate for axial movement in the active cavity of the component, a No. 2 coil spring in a compressed state is arranged at the end of the valve plate facing the No. 3 gas flow hole, the other end face of the valve plate is provided with an annular embedding groove with an inward-concave structure, an annular sealing ring is fixedly installed in the annular embedding groove of the valve plate, the circumferential surface of the valve plate is provided with a plurality of gas flow grooves with inward-concave structures, the end of the valve plate is provided with a transverse telescopic shaft which is an integral structure with it and passes through the through hole of the rod body, the interior of the transverse telescopic shaft is provided with No. 2 gas flow holes with both ends in an open state, the transverse telescopic shaft is fixedly provided with a gas valve in one open end of the No. 2 gas flow hole, and the No. 4 gas flow hole connecting the external space and the active cavity of the No. 2 component is provided at the periphery of the through hole of the rod body.

[0015] Preferably, the depth of the annular embedded groove is smaller than the thickness of the annular sealing ring, the structural radius of the inner ring of the annular sealing ring is larger than the distance between the No. 4 gas flow hole and the axis line of the No. 2 hollow outer shell, and the structural radius of the outer ring of the annular sealing ring is smaller than the distance between the gas flow groove and the axis line of the No. 2 hollow outer shell.

[0016] Compared with the prior art, the present invention provides a machine cover polishing device for ATM production, which has the following beneficial effects: 1. Use a bendable and deformable grinding belt to grind the ATM hood. Since the grinding belt can fit the convex surface, it has a highly fitting effect, thereby improving the grinding effect of the curved surface of the hood. At the same time, the bent grinding belt can generate the same pressure on the contact part, so that when the curved surface of the hood is polished, the grinding pressure in the contact area is the same, thereby preventing the occurrence of different grinding depths caused by inconsistent grinding pressure, and further improving the quality of the finished product after polishing.

[0017] 2. By setting up a belt-type grinding mechanism, when the driving motor is turned on, the rotor of the driving motor will drive the No. 1 pulley to rotate, and the No. 1 pulley will drive the circulating grinding belt to produce a circulating rotation effect. At this time, the circulating grinding belt will grind the contact surface of the hood. Since the grinding belt can make a fitting contact with the outer convex surface, it has a highly fitting effect, thereby improving the grinding effect on the curved surface of the hood.

[0018] 3. By setting up a negative pressure limit mechanism, after the gas above the piston body is extracted, the piston body will drive the No. 3 pulley to move upward under the action of gas suction, so that the circulating grinding belt is tightened, realizing the tension adjustment function of the circulating grinding belt, thereby controlling the grinding pressure of the circulating grinding belt on the hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 It is a three-dimensional cross-sectional view of the present invention from the right side viewing angle; Figure 3 It is a three-dimensional cross-sectional view of the present invention at the main viewing angle; Figure 4 It is a three-dimensional diagram of the belt-type grinding mechanism of the present invention; Figure 5 It is a three-dimensional cross-sectional view of the negative pressure limiting mechanism in the present invention; Figure 6 It is a three-dimensional diagram of the longitudinal telescopic rod of the present invention; Figure 7 is a three-dimensional cross-sectional view of the air pressure control mechanism of the present invention; Figure 8 It is a three-dimensional diagram of the valve plate in the present invention.

[0020] Among them: 1. Longitudinal support seat; 2. Bottom mounting plate; 3. Crossbeam; 4. Belt-type grinding mechanism; 41. No. 1 component fixing sleeve; 42. Curved connecting rod; 43. Longitudinal fixing plate; 44. No. 2 component fixing sleeve; 45. No. 1 shaft body placement hole; 46. Driving motor; 47. No. 1 pulley; 48. No. 2 pulley; 49. No. 1 rotating shaft; 410. Circulating grinding belt; 5. Negative pressure limit mechanism; 51. No. 1 hollow shell; 52. Longitudinal hollow connecting shaft; 53. No. 3 component fixing sleeve; 54. No. 2 shaft body placement hole; 55. No. 1 component movable chamber; 56. Piston body; 57. Longitudinal telescopic rod; 58. No. 1 spiral spring; 59. Concave solid Fixed frame; 510, shaft body placement hole No. 3; 511, rotating shaft No. 2; 512, pulley No. 3; 513, gas flow hole No. 1; 514, polygonal rod hole; 6, air pressure control mechanism; 61, hollow shell No. 2; 62, horizontal hollow connecting shaft; 63, fixing sleeve of component No. 4; 64, shaft body placement hole No. 4; 65, movable cavity of component No. 2; 66, rod body perforation; 67, gas flow hole No. 3; 68, valve plate; 69, annular embedding groove; 610, annular sealing ring; 611, horizontal telescopic shaft; 612, gas flow hole No. 2; 613, gas valve; 614, coil spring No. 2; 615, gas flow groove; 616, gas flow hole No. 4. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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 are within the scope of protection of the present invention.

[0022] See also Figure 1 , Figure 2 and Figure 3 A machine cover polishing device for ATM production includes a longitudinal support seat 1 in a symmetrical state on both sides, a bottom mounting plate 2 integrally arranged at the bottom of the longitudinal support seat 1, and a crossbeam 3 fixedly installed on the top area of ​​the two longitudinal support seats 1. The bottom mounting plate 2 is fixedly installed on the ground or the surface of a fixed object to play a necessary limiting and fixing role.

[0023] To achieve a close-fitting sanding of the hood, see Figure 1 , Figure 2 , Figure 3 and Figure 4, a belt-type grinding mechanism 4 needs to be provided, wherein a first belt pulley 47 and a second belt pulley 48 which are installed in the middle area of ​​the two longitudinal support seats 1 and can rotate, a driving motor 46 which is fixedly installed at one end of the first belt pulley 47 and can drive the first belt pulley 47 to rotate, and a circulating grinding belt 410 which is placed on the periphery of the first belt pulley 47 and the second belt pulley 48 and can generate a circulating rotation with the first belt pulley 47 and the second belt pulley 48, and the outer convex surface of the hood is inserted into the bottom area of ​​the circulating grinding belt 410, and the convex surface needs to make the circulating grinding belt 410 generate an upward bend. Curved fitting effect. Since the grinding surface of the circulating grinding belt 410 is outward, the grinding surface of the circulating grinding belt 410 can contact the polished surface of the hood. When the driving motor 46 is turned on, the rotor of the driving motor 46 will drive the No. 1 pulley 47 to rotate, and the No. 1 pulley 47 will drive the circulating grinding belt 410 to produce a circular rotation effect. At this time, the circulating grinding belt 410 will grind the contact surface of the hood. Since the grinding belt can perform fitting contact with the outer convex surface, it has a highly fitting effect, thereby improving the grinding effect on the curved surface of the hood.

[0024] For the specific structure of the belt-type grinding mechanism 4, please refer to Figure 4 , including a No. 1 component fixing sleeve 41 and a No. 2 component fixing sleeve 44 respectively located on one side of the two longitudinal support seats 1, the outer circumferential surfaces of the No. 1 component fixing sleeve 41 and the No. 2 component fixing sleeve 44 are respectively fixedly installed with a curved connecting rod 42, and one end of each of the curved connecting rods 42 is respectively fixedly installed with a longitudinal fixing plate 43, the longitudinal fixing plate 43 located in the No. 1 component fixing sleeve 41 area is fixedly installed on the side of one of the longitudinal support seats 1, and the longitudinal fixing plate 43 located in the No. 2 component fixing sleeve 44 area is fixedly installed on the side of the other longitudinal support seat 1, and the No. 1 component fixing sleeve A driving motor 46 is fixedly installed in 41, and a No. 1 pulley 47 which can rotate therewith is fixedly installed on the rotor end of the driving motor 46, and a No. 1 shaft receiving hole 45 is arranged at the center of the No. 2 component fixing sleeve 44, and a No. 1 rotating shaft 49 which can rotate is installed inside the No. 1 shaft receiving hole 45 through a bearing in the No. 2 component fixing sleeve 44, and a No. 2 pulley 48 is fixedly installed on the end of the No. 1 rotating shaft 49, and the No. 1 pulley 47 and the No. 2 pulley 48 are symmetrically arranged with respect to the longitudinal symmetry plane of the longitudinal support seat 1, and a circulating grinding belt 410 is placed on the outer periphery of the No. 1 pulley 47 and the No. 2 pulley 48.

[0025] In order to adjust the tension of the circulating sanding belt 410, and thus control the sanding pressure of the circulating sanding belt 410 on the hood, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6, it is necessary to set up a negative pressure limit mechanism 5, inside which is provided with a No. 1 hollow shell 51 fixedly installed just below the crossbeam 3 and located above the center area of ​​the No. 1 pulley 47 and the No. 2 pulley 48, a piston body 56 located inside the No. 1 hollow shell 51 and moving upward after being acted upon by the gas, and a No. 3 pulley 512 moving with the piston body 56 and capable of adjusting the tension of the circulating grinding belt 410. After the gas located above the piston body 56 is extracted, the piston body 56 drives the No. 3 pulley 512 to move upward under the action of the gas suction force, thereby tightening the circulating grinding belt 410, realizing the tension adjustment function of the circulating grinding belt 410, thereby controlling the grinding pressure of the circulating grinding belt 410 on the hood.

[0026] For the specific structure of the negative pressure limiting mechanism 5, please refer to Figure 5 and Figure 6, comprising a No. 1 hollow shell 51, the upper end surface of the No. 1 hollow shell 51 is provided with a longitudinal hollow connecting shaft 52 of an integral structure therewith, the top of the longitudinal hollow connecting shaft 52 is provided with a No. 3 component fixing sleeve 53 of an integral structure therewith, the center of the No. 3 component fixing sleeve 53 is provided with a No. 2 shaft body placement hole 54 fixedly installed on the periphery of the middle area of ​​the crossbeam 3, the interior of the No. 1 hollow shell 51 is provided with a No. 1 component active cavity 55, and the bottom end of the No. 1 hollow shell 51 is provided with a space connecting the space below it and the No. 1 component. A polygonal rod hole 514 is formed at the bottom of the movable chamber 55 of the component, and a No. 1 gas flow hole 513 is arranged inside the longitudinal hollow connecting shaft 52, which connects the top of the movable chamber 55 of the No. 1 component and the external space. A piston body 56 capable of axially moving along the movable chamber 55 of the No. 1 component is placed inside the movable chamber 55 of the No. 1 component, and a longitudinal telescopic rod 57 penetrating the polygonal rod hole 514 is fixedly installed at the bottom of the piston body 56. The structural shape of the cross section of the polygonal rod hole 514 is consistent with the structural shape of the cross section of the longitudinal telescopic rod 57, and both are polygonal structures, and the structural dimensions of the cross section of the polygonal rod hole 514 match the structural dimensions of the cross section of the longitudinal telescopic rod 57. A No. 1 coil spring 58 is placed on the periphery of the rod body of the longitudinal telescopic rod 57 inside the movable chamber 55 of the No. 1 component, and the bottom end of the No. 1 coil spring 58 abuts against the bottom end of the movable chamber 55 of the No. 1 component, and the top end abuts against the bottom surface of the piston body 56, and the No. 1 coil spring 58 is in a compressed state. The longitudinal telescopic rod 57 is located at A concave fixing frame 59 is fixedly installed at the bottom end of the outer portion of the No. 1 hollow shell 51, and a No. 3 shaft body placement hole 510 is provided in the middle of the two symmetrical vertical plate structures of the concave fixing frame 59. A No. 2 rotating shaft 511 that can rotate is installed in the No. 3 shaft body placement hole 510 through a bearing, and a No. 3 pulley 512 with an integral structure therewith is provided between the two No. 2 rotating shafts 511, and the No. 3 pulley 512 is placed in the circulating grinding belt 410, and at this time, the circulating grinding belt 410 is an isosceles triangle structure.

[0027] In order to achieve the control function of the maximum value of negative pressure gas, so as to prevent the negative pressure value from being too large and causing excessive grinding pressure, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8, it is necessary to set up an air pressure control mechanism 6, which is provided with a second hollow shell 61 fixedly installed on one side of the longitudinal hollow connecting shaft 52 and whose internal structure is connected to the first gas flow hole 513, and a valve plate 68 placed inside the second hollow shell 61 and capable of controlling the maximum gas pressure value in the active cavity 55 of the first component. When working, use a vacuum device, install the hose of the vacuum device in the gas valve 613, turn on the vacuum device, and the gas in the active cavity 65 of the second component and the first gas flow hole 513 is extracted , forming a low-pressure area. Once the intensity of the air pressure value is greater than the elastic strength of the No. 2 coil spring 614, the valve plate 68 will move toward the No. 3 gas flow hole 67. At the same time, the external gas will pass through the No. 4 gas flow hole 616, the gap of the valve plate 68 and the gas flow groove 615 in turn to compensate to the No. 2 component active cavity 65 and the No. 1 gas flow hole 513 in time, thereby reducing the negative pressure value and realizing the control function of the maximum value of the negative pressure gas, thereby preventing the occurrence of excessive grinding pressure due to excessive negative pressure.

[0028] For the specific structure of the air pressure control mechanism 6, please refer to Figure 7 and Figure 8, including a second hollow shell 61, one end of the second hollow shell 61 is provided with a transverse hollow connecting shaft 62 of an integral structure therewith, one end of the transverse hollow connecting shaft 62 is provided with a fourth component fixing sleeve 63 of an integral structure therewith, the center of the fourth component fixing sleeve 63 is provided with a fourth shaft body placement hole 64 fixedly installed on the periphery of the longitudinal hollow connecting shaft 52, the interior of the second hollow shell 61 is provided with a second component activity cavity 65, and one end of the second hollow shell 61 is provided with a space connecting the external space and the second component activity cavity The rod body of the movable chamber 65 is through-hole 66, and the interior of the transverse hollow connecting shaft 62 and the No. 4 component fixed sleeve 63 is provided with a No. 3 gas flow hole 67 connecting the No. 2 component movable chamber 65 and the No. 1 gas flow hole 513. The No. 2 hollow shell 61 is provided with a valve plate 68 capable of axial movement along the No. 2 component movable chamber 65 inside the No. 2 component movable chamber 65, and the valve plate 68 is provided with a No. 2 coil spring 614 in a compressed state at the end facing the No. 3 gas flow hole 67, and the other end surface of the valve plate 68 is provided with an inner concave The valve plate 68 is provided with an annular embedded groove 69 of a concave structure, and an annular sealing ring 610 is fixedly installed in the annular embedded groove 69. The circumferential surface of the valve plate 68 is provided with a plurality of gas flow grooves 615 of a concave structure. The end of the valve plate 68 is provided with a transverse telescopic shaft 611 which is an integral structure with the valve plate 68 and passes through the rod body through hole 66. The interior of the transverse telescopic shaft 611 is provided with a second gas flow hole 612 with both ends being open. The transverse telescopic shaft 611 is fixedly provided with a gas flow hole 612 at one open end of the second gas flow hole 612. Valve 613, the No. 4 gas flow hole 616 connecting the external space and the No. 2 component active cavity 65 is arranged on the periphery of the rod body through hole 66 of the No. 2 hollow shell 61, the depth of the annular embedding groove 69 is less than the thickness of the annular sealing ring 610, the structural radius of the inner ring of the annular sealing ring 610 is greater than the distance between the No. 4 gas flow hole 616 and the axis line of the No. 2 hollow shell 61, and the structural radius of the outer ring of the annular sealing ring 610 is less than the distance between the gas flow groove 615 and the axis line of the No. 2 hollow shell 61.

[0029] The working principle of the present invention is to fix the bottom mounting plate 2 on the ground or the surface of a fixed object, and insert the outer convex surface of the hood into the bottom area of ​​the circulating grinding belt 410. The convex surface needs to make the circulating grinding belt 410 produce an upward bending and fitting effect. Since the grinding surface of the circulating grinding belt 410 is facing outward, the grinding surface of the circulating grinding belt 410 can contact the polished surface of the hood. Use a vacuum device, install the hose of the vacuum device in the air valve 613, turn on the vacuum device, and the gas in the active chamber 65 of the second component and the first gas flow hole 513 is extracted to form a low-pressure area. After the gas above the piston body 56 is extracted, the piston body 56 drives the third pulley 512 to move upward under the action of gas suction, so that the circulating grinding belt 410 is tightened, realizing the tension adjustment function of the circulating grinding belt 410, thereby controlling the grinding pressure of the circulating grinding belt 410 on the hood; Once the strength of the air pressure value is greater than the elastic strength of the No. 2 coil spring 614, the valve plate 68 will move toward the No. 3 gas flow hole 67. At the same time, the external gas will pass through the No. 4 gas flow hole 616, the gap of the valve plate 68 and the gas flow groove 615 in turn to timely compensate to the No. 2 component active cavity 65 and the No. 1 gas flow hole 513, thereby reducing the negative pressure value and realizing the control function of the maximum value of the negative pressure gas, thereby preventing the occurrence of excessive grinding pressure caused by excessive negative pressure value; When the driving motor 46 is turned on, the rotor of the driving motor 46 will drive the No. 1 pulley 47 to rotate, and the No. 1 pulley 47 will drive the circulating grinding belt 410 to produce a circulating rotation effect. At this time, the circulating grinding belt 410 will grind the contact surface of the hood.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A machine cover polishing device for ATM production, comprising a longitudinal support seat (1) in a bilaterally symmetrical state, a bottom mounting plate (2) integrally arranged at the bottom of the longitudinal support seat (1), and a crossbeam (3) fixedly mounted on the top area of ​​the two longitudinal support seats (1), characterized in that: Also includes, A belt-type grinding mechanism (4) is provided with a first belt pulley (47) and a second belt pulley (48) mounted in the middle area of ​​two longitudinal support seats (1) and capable of rotating, a driving motor (46) fixedly mounted on one end of the first belt pulley (47) and capable of driving the first belt pulley (47) to rotate, and a circulating grinding belt (410) sleeved on the periphery of the first belt pulley (47) and the second belt pulley (48) and capable of generating a circulating rotation with the first belt pulley (47) and the second belt pulley (48); and a negative pressure limiting mechanism (5), wherein a first hollow shell (51) is fixedly mounted directly below the crossbeam (3) and located above the center area of ​​the first pulley (47) and the second pulley (48), a piston body (56) is located inside the first hollow shell (51) and moves upward after being acted upon by gas, and a third pulley (512) moves with the piston body (56) and can produce a tension adjustment effect on the circulating grinding belt (410).

2. The machine cover polishing device for ATM production according to claim 1, characterized in that: The belt-type grinding mechanism (4) comprises a first component fixing sleeve (41) and a second component fixing sleeve (44) respectively located on one side of two longitudinal support seats (1), wherein the outer circumferential surfaces of the first component fixing sleeve (41) and the second component fixing sleeve (44) are respectively fixedly mounted with a curved connecting rod (42), and one end of each curved connecting rod (42) is respectively fixedly mounted with a longitudinal fixing plate (43), wherein the longitudinal fixing plate (43) located in the region of the first component fixing sleeve (41) is fixedly mounted on the side of one of the longitudinal support seats (1), and the longitudinal fixing plate (43) located in the region of the second component fixing sleeve (44) is fixedly mounted on the other side of the longitudinal support seats (1). On the side of the longitudinal support seat (1), a driving motor (46) is fixedly installed in the No. 1 component fixing sleeve (41), and a No. 1 pulley (47) that can rotate with the driving motor (46) is fixedly installed at the rotor end of the driving motor (46). A No. 1 shaft body placement hole (45) is provided at the center of the No. 2 component fixing sleeve (44), and a No. 1 rotating shaft (49) that can rotate is installed inside the No. 1 shaft body placement hole (45) of the No. 2 component fixing sleeve (44) through a bearing, and a No. 2 pulley (48) is fixedly installed at the end of the No. 1 rotating shaft (49), and a circulating grinding belt (410) is placed on the outer periphery of the No. 1 pulley (47) and the No. 2 pulley (48).

3. The machine cover polishing device for ATM production according to claim 2, characterized in that: The grinding surface of the circulating grinding belt (410) faces outwards.

4. The machine cover polishing device for ATM production according to claim 2, characterized in that: The first belt pulley (47) and the second belt pulley (48) are symmetrically arranged with respect to the longitudinal symmetry plane of the longitudinal support seat (1).

5. The machine cover polishing device for ATM production according to claim 2, characterized in that: The negative pressure limiting mechanism (5) comprises a No. 1 hollow shell (51), the upper end surface of the No. 1 hollow shell (51) is provided with a longitudinal hollow connecting shaft (52) integrally formed with the No. 1 hollow shell (51), the top end of the longitudinal hollow connecting shaft (52) is provided with a No. 3 component fixing sleeve (53) integrally formed with the No. 1 component, the center of the No. 3 component fixing sleeve (53) is provided with a No. 2 shaft body placement hole (54) fixedly installed on the periphery of the middle area of ​​the crossbeam (3), the interior of the No. 1 hollow shell (51) is provided with a No. 1 component active cavity (55), the bottom end of the No. 1 hollow shell (51) is provided with a polygonal rod hole (514) connecting the space below it and the bottom end of the No. 1 component active cavity (55), the interior of the longitudinal hollow connecting shaft (52) is provided with a No. 1 gas flow hole (513) connecting the top end of the No. 1 component active cavity (55) and the external space, and the No. 1 hollow shell (51) is provided with a gas flow hole (513) capable of flowing along the No. 1 component active cavity (55) located inside the No. 1 component active cavity (55). A piston body (56) is axially movable in the movable chamber (55) of the first component. A longitudinal telescopic rod (57) penetrating the polygonal rod hole (514) is fixedly mounted on the bottom of the piston body (56). A first coil spring (58) is sleeved on the outer periphery of the rod body located inside the movable chamber (55) of the first component. A concave fixing frame (59) is fixedly mounted on the bottom end of the longitudinal telescopic rod (57) located outside the first hollow shell (51). A No. 3 shaft body placement hole (510) is provided in the middle of the two symmetrical vertical plate structures of the frame (59); a No. 2 rotating shaft (511) capable of rotation is installed in the No. 3 shaft body placement hole (510) via a bearing; a No. 3 belt pulley (512) integrally formed with the two No. 2 rotating shafts (511) is provided between the two No. 2 rotating shafts (511); the No. 3 belt pulley (512) is sleeved in the circulating grinding belt (410); and at this time, the circulating grinding belt (410) is in an isosceles triangle structure.

6. A machine cover polishing device for ATM production according to claim 5, characterized in that: The bottom end of the No. 1 coil spring (58) abuts against the bottom end of the No. 1 component active chamber (55), and the top end abuts against the bottom surface of the piston body (56), and the No. 1 coil spring (58) is in a compressed state.

7. The machine cover polishing device for ATM production according to claim 5, characterized in that: The structural shape of the cross section of the polygonal rod hole (514) is consistent with the structural shape of the cross section of the longitudinal telescopic rod (57), both of which are polygonal structures, and the structural dimensions of the cross section of the polygonal rod hole (514) match the structural dimensions of the cross section of the longitudinal telescopic rod (57).

8. The machine cover polishing device for ATM production according to claim 5, characterized in that: It also includes a gas pressure control mechanism (6), which is provided with a second hollow shell (61) fixedly mounted on one side of the longitudinal hollow connecting shaft (52) and having an internal structure connected to the first gas flow hole (513), and a valve plate (68) placed inside the second hollow shell (61) and capable of controlling the maximum gas pressure value in the active chamber (55) of the first component.

9. The machine cover polishing device for ATM production according to claim 8, characterized in that: The air pressure control mechanism (6) comprises a second hollow shell (61), one end of the second hollow shell (61) is provided with a transverse hollow connecting shaft (62) which is an integral structure with the second hollow shell (61), one end of the transverse hollow connecting shaft (62) is provided with a fourth component fixing sleeve (63) which is an integral structure with the second hollow shell (61), the center of the fourth component fixing sleeve (63) is provided with a fourth shaft body placement hole (64) which is fixedly installed on the outer periphery of the shaft body of the longitudinal hollow connecting shaft (52), and the interior of the second hollow shell (61) is provided with the second component The second hollow shell (61) has a rod body through hole (66) at one end thereof, which is connected to the external space and the second component active cavity (65); the transverse hollow connecting shaft (62) and the fourth component fixed sleeve (63) are provided with a third gas flow hole (67) which is connected to the second component active cavity (65) and the first gas flow hole (513); the second hollow shell (61) is provided with a gas flow hole (67) which is connected to the second component active cavity (65) and the first gas flow hole (513); and a gas flow hole (67) which is capable of moving axially along the second component active cavity (65) is arranged inside the second component active cavity (65). The valve plate (68) has a No. 2 coil spring (614) in a compressed state arranged at the end of the valve plate (68) facing the No. 3 gas flow hole (67), the other end surface of the valve plate (68) is provided with an annular embedding groove (69) with an inward concave structure, the valve plate (68) has an annular sealing ring (610) fixedly installed in the annular embedding groove (69), the circumferential surface of the valve plate (68) is provided with a plurality of gas flow grooves (615) with an inward concave structure, and the end of the valve plate (68) is provided with an integral gas flow groove (615) with the valve plate (68). The second hollow housing (61) is provided with a fourth gas flow hole (616) which communicates with the external space and the active cavity (65) of the second component.

10. The machine cover polishing device for ATM production according to claim 9, characterized in that: The depth of the annular embedding groove (69) is smaller than the thickness of the annular sealing ring (610), the structural radius of the inner ring of the annular sealing ring (610) is larger than the distance between the fourth gas flow hole (616) and the axis of the second hollow shell (61), and the structural radius of the outer ring of the annular sealing ring (610) is smaller than the distance between the gas flow groove (615) and the axis of the second hollow shell (61).

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