Inner hole grinding machine tool for deep hole part

Abstract

The invention discloses a deep hole part inner hole grinding machine tool, and belongs to the technical field of deep hole part inner hole grinding, a mounting assembly comprises a mounting base and a mounting top plate, the section of the mounting base is of a U-shaped structure, and a limiting sliding rail is arranged at the top end of the mounting top plate; a lathe head and a balance assembly are sequentially arranged on the upper portion of the mounting top plate from left to right, slide and move on the limiting sliding rails and are detachably mounted on the mounting top plate. The center support has the beneficial effects that the supporting position can be optimized according to the appearance and size of a part through the flexible adjusting capacity of the three sets of center supports, machining errors caused by the irregular shape of the part are further reduced, the machining precision of the whole machine tool is guaranteed, vibration of the main shaft and the part can be effectively reduced through the arrangement of the balance assembly, and the machining precision is improved. In the whole machining process, jumping of a cutter and shifting of cutting force are reduced, and therefore the machining stability of the whole machine tool is enhanced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of deep-hole part inner hole grinding, and in particular to a deep-hole part inner hole grinding machine. BACKGROUND

[0002] The deep-hole part refers to a part with a ratio of hole diameter to hole depth greater than 5, for example, a gun barrel and a steam turbine main shaft. Through grinding work, the dimensional accuracy of the deep hole can be further improved, so that the deep hole can more accurately meet the design requirements. For example, in the field of aerospace, the deep-hole parts of an engine, such as oil holes and cooling holes, have very high dimensional accuracy requirements. Grinding can control the dimensional tolerance to the micron level, ensuring the fitting accuracy between various parts, thereby ensuring the normal operation of the entire system. In the traditional grinding machine, when grinding the inner wall of the deep hole, the grinding wheel is connected with the moving mechanism outside, and the moving mechanism is controlled to enter the inside of the deep hole, so as to achieve the purpose of grinding the deep hole. For example, the grinding principle disclosed in the grinding device for deep-hole parts with the application number 201310100022.0.

[0003] However, during the deep-hole machining process, the cutting force exerted by the tool on the part is relatively large, especially when machining a deep hole with a large length-diameter ratio. The rigidity of the part is relatively weak, so that the part outside the tool is affected by the cutting force and deforms. The deformation of the part causes the axis of the hole to deviate from the predetermined position, affecting the straightness and coaxiality of the hole, thereby reducing the machining accuracy. The deformation of the part also makes the contact state between the tool and the surface of the part unstable, resulting in vibration marks or other defects on the machined surface, and also affects the service life of the tool. Therefore, a deep-hole part inner hole grinding machine with a balancing mechanism is needed to grind the part, so that the efficiency of the entire machine is higher when machining multiple deep holes. SUMMARY

[0004] One of the purposes of the present application is to provide a deep-hole part inner hole grinding machine to solve the problem that the deep-hole space inner hole grinding machine on the market currently sets a balancing mechanism to support the part at multiple points when machining, which affects the part and the tool.

[0005] To achieve the above object, the technical scheme adopted by the present application is as follows: a deep hole part inner hole grinding machine tool, comprising a bed body for fixing with the ground, a control main body, a mounting assembly and a fixing table are sequentially arranged from left to right on the top end of the bed body, the mounting assembly comprises a mounting seat and a mounting top plate, the mounting seat is in a "U" shaped structure in cross section, and is detachably mounted between the top end of the mounting seat and the mounting top plate, the top end of the mounting top plate is provided with a limiting slide rail, a headstock and a balancing assembly are sequentially arranged from left to right above the mounting top plate, the headstock and the balancing assembly are slidably moved on the limiting slide rail and are detachably mounted with the mounting top plate, the top end of the headstock is provided with a chuck for clamping the deep hole part, the balancing assembly comprises two movable center frame bodies and one fixed center frame body, the two movable center frame bodies are symmetrically arranged about the central axis of the fixed center frame body for multi-position balancing work on the outer side of the deep hole part, the top end of the fixing table is detachably mounted with a workbench, the top end of the workbench is provided with a sliding slide plate, the top end of the slide plate is connected with a grinding head seat through a first moving mechanism, and the top end of the grinding head seat is provided with a grinding unit for grinding work, and the top end of the mounting assembly on one side of the fixing table is provided with a diamond pen.

[0006] Preferably, the bottom of the fixed center frame body and the movable center frame body is integrally provided with a connecting seat, the bottom of the movable center frame body is integrally provided with a second limiting frame below the connecting seat, the bottom of the fixed center frame body is integrally provided with a first limiting frame below the connecting seat, and the bottom of the second limiting frame of the two movable center frame bodies is connected with a moving assembly.

[0007] Preferably, the two groups of moving assemblies are arranged high and low, and comprise a fixed vertical rod, a connecting horizontal rod, a rectangular rod and a limiting slide block, the top end of the fixed vertical rod is integrally mounted with the center position of the second limiting frame, and the bottom thereof is integrally mounted with the connecting horizontal rod through the reserved sliding groove at the top end of the mounting seat, the top end of the connecting horizontal rod is symmetrically provided with two groups of rectangular rods, one of the rectangular rods is provided with tooth blocks at the inner side at equal angles, the tooth block positions of the two groups of rectangular rods on the inner side of the moving assembly are symmetric to each other, and the two groups of moving assemblies are driven to move by a working unit, the outer side of the working unit is provided with a control lifting unit for controlling the upward and downward movement of the working unit, the working unit and the control lifting unit are arranged in the "U" shaped hollow structure inside the mounting seat, and both are controlled to move by a control displacement unit.

[0008] Preferably, the grinding unit comprises a grinding disc, a rotating shaft and a servo motor, the top end of the servo motor is coaxially connected with the rotating shaft, and the grinding disc is coaxially connected at the top end of the rotating shaft, the rotating shaft is externally provided with a detachable protective cover for protection, the servo motor is arranged in the internal hollow structure of the grinding head base, and the top end of the grinding head base is detachably connected with the rectangular protective cover, the external surface of the protective cover is provided with clamping seats at equal intervals, and the top end of the clamping seat is in an arc-shaped opening structure.

[0009] Preferably, the grinding head base is arranged in a structure with a rectangular top end and a plate-shaped bottom, the rectangular structure is arranged at the middle position of the plate-shaped structure, the plate-shaped structure is provided with a mobile dust removal assembly on both sides, and the plate-shaped structure is arranged at the top end of the sliding plate, the mobile dust removal assembly comprises a suction pump, a suction pipe, a connecting pipe and a collection box, the suction pump is detachably arranged at the both sides of the plate-shaped structure of the grinding head base, and the external surface is respectively penetrated by the suction pipe and the connecting pipe, one side of the suction pipe is limited on the external surface of the protective cover through the clamping seat, the bottom of the connecting pipe is penetrated by the collection box, the top end of the collection box is provided with a sliding block which slides in the hollow groove at the bottom of the sliding plate, the bottom of the collection box is clamped with the top end recess of the workbench, and it moves in the recess of the workbench.

[0010] Preferably, the bottom of the sliding plate is symmetrically provided with two groups of mobile sliding seats, and the mobile sliding seats are clamped in the rectangular holes at the top end of the workbench, the external surface of the mobile sliding seat is connected with one side of the telescopic air cylinder, and the other side of the telescopic air cylinder is connected with the inner wall of the rectangular hole through the air cylinder seat, the internal surface of the sliding plate is provided with a first moving mechanism connected with the bottom plate structure of the grinding head base, the first moving mechanism comprises a first moving mechanism and a first lead screw, the top end of the first moving mechanism is provided with a coaxially connected first lead screw, the external surface of the first lead screw is threadedly connected with the sleeve below the bottom plate structure of the grinding head base, and the sleeve of the bottom plate structure of the grinding head base penetrates the limiting groove on the surface of the sliding plate.

[0011] Preferably, the working unit comprises a first rotating gear, a second rotating gear and an intermediate shaft, the first rotating gear and the second rotating gear are connected through the intermediate shaft, the distance between the first rotating gear and the second rotating gear is the same as the height of the two groups of moving assemblies, and the first rotating gear and the second rotating gear are respectively engaged with the tooth blocks on the two groups of moving assemblies, the bottom outer side of the intermediate shaft is bearing connected with the control lifting unit, and the control lifting unit comprises a moving sleeve, a second lead screw, a second motor, a connecting plate and a limiting round rod, the top end of the connecting plate is bearing connected with the bottom outer side of the intermediate shaft, and the connecting plate is symmetrically provided with two, the top end of the connecting plate is integrally provided with a moving sleeve, one of the moving sleeves is provided with a second lead screw connected in the middle, and the other moving sleeve is provided with a limiting round rod in the middle, the bottom of the second lead screw is coaxially connected with a second motor, and the bottom of the second motor and the bottom of the limiting round rod are both installed above the control displacement unit.

[0012] Preferably, the control displacement unit comprises a connecting cylinder, a third lead screw, a third motor and a placing horizontal plate, the top end of the placing horizontal plate is provided with a second motor and a limiting round rod, and the bottom of the placing horizontal plate is provided with a connecting cylinder, the middle of the connecting cylinder is provided with a third lead screw connected in a threaded manner, the top end of the third lead screw is coaxially connected with a third motor, and the third motor is installed in the hollow structure inside the mounting seat.

[0013] Preferably, the bottom of the working unit is driven by the driving unit, and the driving unit comprises a driving shaft and a driving motor, the bottom of the driving shaft is coaxially connected with the driving motor, the driving motor is arranged above the placing horizontal plate, and the outer side of the driving shaft is provided with a limiting block which is clamped between the limiting clamping groove in the intermediate shaft.

[0014] Compared with the prior art, the beneficial effects of the present application are that:

[0015] (1) The balancing assembly is provided with two moving center frames and one fixed center frame, so that when the parts are processed, the cutting force received by the parts during processing can be effectively dispersed through the center frame, the deformation of the parts is reduced, the precision indexes such as straightness, roundness and coaxiality of the hole are improved, the flexible adjustment capability of the three center supports enables the supporting position to be optimized according to the shape and size of the parts, further reducing the processing error caused by irregular shape of the parts, ensuring the processing precision of the whole machine tool, and through the setting of the balancing assembly, the vibration of the main shaft and the parts can be effectively reduced, so that the runout of the cutter and the cutting force during the whole processing process are reduced, and the stability of the whole machine tool processing is enhanced.

[0016] (2)The two sides of the moving center frame body can be controlled by the working unit to move at the same distance at the same time, and can also be moved in one direction, so that the whole balance assembly can adapt to various parts with complex shapes and large size changes. Through the adjustment of the two sides of the moving center frame body, the parts to be processed can be accurately supported and balanced, and the machining demand of high-precision and complex-shaped parts can be met, the quality and reliability of the product are improved, and the equipment versatility is improved without frequent equipment replacement or complex adjustment.

[0017] (3)Because the hole depth is large during deep hole machining, the chip discharge is not smooth, which easily blocks in the hole, aggravates the tool wear, and even damages the tool. Therefore, the moving dust removal assembly is arranged, so that the suction pipe at the top end of the moving dust removal assembly can move into the deep hole together with the grinding disc, and the generated grinding dust can be sucked out in time. This design can effectively avoid the accumulation of grinding dust in the grinding area, reduce the interference of the grinding dust on the grinding process, reduce the accumulation of grinding dust between the grinding disc and the parts, reduce the wear speed of the grinding disc, prolong the service life of the grinding disc, reduce the tool replacement frequency, and reduce the processing cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the application.

[0019] Figure 2 It is a front view structural schematic diagram of the application.

[0020] Figure 3 It is a front view structural schematic diagram of the application.

[0021] Figure 4 It is a front view structural schematic diagram of the application.

[0022] Figure 5 It is a front view structural schematic diagram of the application.

[0023] Figure 6 It is a front view structural schematic diagram of the application.

[0024] Figure 7 It is a front view structural schematic diagram of the application.

[0025] Figure 8 It is a front view structural schematic diagram of the application.

[0026] Figure 9 It is a front view structural schematic diagram of the application.

[0027] Figure 10 It is a schematic view of the main view structure between the sliding plate and the grinding head seat of the application.

[0028] Figure 11 It is a schematic view of the clamping seat and the suction pipe clamping and limiting structure of the application.

[0029] Figure 12 It is a schematic view of the semi-section local enlarged structure between the grinding head seat and the servo motor of the application.

[0030] In the figure: 1, bed body; 2, control main body; 3, headstock box; 4, chuck; 5, balance assembly; 51, fixed center frame body; 52, movable center frame body; 53, connecting seat; 54, first limiting frame; 55, second limiting frame; 56, moving assembly; 561, fixed vertical rod; 562, connecting cross rod; 563, rectangular rod; 564, limiting sliding block; 6, diamond pen; 7, grinding head seat; 8, sliding plate; 81, first moving mechanism; 811, first lead screw; 812, first motor; 82, moving sliding seat; 9, mounting assembly; 91, mounting seat; 92, mounting top plate; 93, limiting sliding rail; 94, reserved sliding groove; 10, fixed table; 11, workbench; 12, protective cover; 13, moving dust removal assembly; 131, suction pump; 132, suction pipe; 133, connecting pipe; 134, collection box body; 14, grinding disc; 141, rotating shaft; 142, servo motor; 15, telescopic air cylinder; 16, working unit; 161, first rotating gear; 162, second rotating gear; 163, intermediate shaft; 17, control lifting unit; 171, moving sleeve; 172, second lead screw; 173, second motor; 174, connecting plate; 175, limiting round rod; 18, control displacement unit; 181, connecting cylinder; 182, third lead screw; 183, third motor; 184, placing cross plate; 19, driving unit; 191, driving shaft; 192, driving motor; 20, clamping seat. DETAILED DESCRIPTION

[0031] Hereinafter, the application will be further described in conjunction with specific embodiments. It should be noted that, under the premise of no conflict, the following described embodiments or technical features can be combined in any manner to form new embodiments.

[0032] In the description of the present application, it should be noted that for the orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0033] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence.

[0034] One of the preferred embodiments of the present application is shown as Figures 1 to 12 A deep hole part inner hole grinding machine tool, comprising a bed body 1 for fixing with the ground, a control body 2, a mounting assembly 9 and a fixed table 10 are sequentially arranged from left to right on the top end of the bed body 1, the mounting assembly 9 comprises a mounting seat 91 and a mounting top plate 92, the mounting seat 91 is in a "U" shaped structure in cross section, and is detachably mounted between the top end and the mounting top plate 92, the top end of the mounting top plate 92 is provided with a limiting slide rail 93, the top of the mounting top plate 92 is sequentially provided with a headstock 3 and a balancing assembly 5 from left to right, the headstock 3 and the balancing assembly 5 are slidably moved on the limiting slide rail 93 and are detachably mounted with the mounting top plate 92, the top end of the headstock 3 is provided with a chuck 4 for clamping work on the deep hole part, the balancing assembly 5 comprises two movable center frame bodies 52 and one fixed center frame body 51, the two movable center frame bodies 52 are symmetrically arranged about the central axis of the fixed center frame body 51 for multi-position balancing work on the outer side of the deep hole part, the top end of the fixed table 10 is detachably mounted with a workbench 11, the top of the workbench 11 is provided with a sliding slide plate 8, the top of the slide plate 8 is connected with a grinding head seat 7 through a first moving mechanism 81, and the top of the grinding head seat 7 is provided with a grinding unit for grinding work, the top outside of the mounting assembly 9 deviated from the side of the fixed table 10 is provided with a diamond pen 6.

[0035] The application provides a deep hole part inner hole grinding machine tool with a balancing assembly 5, specifically, during use, firstly, the whole machine tool bed 1 is fixed at a suitable position of a factory building, then, the power supply of the whole device is connected, firstly, the headstock 3 is moved above the limiting slide rail 93 of the mounting seat 91 of the balancing assembly 5, after being moved to a suitable position, the top end of the part is clamped between the chuck 4 during initial processing of a part of a specification, then, according to the size and shape of the part, the fixed center frame body 51 and the movable center frame body 52 are moved to fixed positions, the positions of the headstock 3, the fixed center frame body 51 and the movable center frame body 52 after position determination are fixed through bolts, then, the surface of the part is supported and balanced by the fixed center frame body 51 and the movable center frame body 52, then, the grinding head seat 7 at the top end of the slide plate 8 is driven to move towards the inner hole of the part, during movement, the inner hole can be ground by the grinding unit, during grinding, the part and the grinding unit can be balanced and supported by the balancing assembly 5, so that the workpiece and the grinding unit are protected.

[0036] The chuck 4 clamps the part by the same principle as the three-jaw chuck on the market, specifically, the principle disclosed in the application number 201610734575.5 multi-purpose three-jaw chuck, however, the application is not limited in this regard, the principle of the center frame is disclosed in the application number 201521141822.8 center frame for a lathe, however, the application is not limited in this regard, furthermore, the control principle of the control main body 2 in the application is that the control system sends control signals to each actuator of the machine tool such as the main shaft motor and the feeding motor according to the analyzed instructions through the servo system, after the servo system receives the control signals, the moving parts of the machine tool such as the tool and the workbench move according to the predetermined track and speed, finally, the feedback system monitors the movement state of the machine tool such as the position and the speed in real time and feeds back the information to the numerical control system. The numerical control system adjusts the control signals according to the feedback information to ensure the precision and stability of the processing process, the model is Siemens SINUMERIK 828D, however, the application is not limited in this regard.

[0037] As a further preferred embodiment of the present application, according to Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 and Figure 9As shown, the bottom of the fixed central frame body 51 and the mobile central frame body 52 is integrally installed with a connecting seat 53, wherein the bottom of the mobile central frame body 52 is integrally installed with a second limiting frame 55 below the connecting seat 53, and the bottom of the fixed central frame body 51 is integrally installed with a first limiting frame 54 below the connecting seat 53. The bottom of the second limiting frame 55 of the two mobile central frame bodies 52 is connected with a moving assembly 56.

[0038] The two moving assemblies 56 are arranged high and low, and each include a fixed vertical rod 561, a connecting cross rod 562, a rectangular rod 563, and a limiting sliding block 564. The top end of the fixed vertical rod 561 is integrally installed at the center of the second limiting frame 55, and the bottom end is integrally installed with the connecting cross rod 562 through the top end of the mounting seat 91 and the preformed sliding groove 94. The top end of the connecting cross rod 562 is symmetrically provided with two groups of rectangular rods 563. One of the rectangular rods 563 is provided with tooth blocks at the inner side at equal angles. The tooth blocks at the inner side of the rectangular rods 563 of the two groups of moving assemblies 56 are symmetrically arranged. The two groups of moving assemblies 56 are driven to move by a working unit 16. The outer side of the working unit 16 is provided with a control lifting unit 17 for controlling the working unit 16 to move up and down. The working unit 16 and the control lifting unit 17 are arranged in the "U"-shaped hollow structure inside the mounting seat 91, and are controlled to move by a control displacement unit 18.

[0039] The working unit 16 includes a first rotating gear 161, a second rotating gear 162, and an intermediate shaft 163. The first rotating gear 161 and the second rotating gear 162 are connected by the intermediate shaft 163. The distance between the first rotating gear 161 and the second rotating gear 162 is the same as the height of the two groups of moving assemblies 56. The first rotating gear 161 and the second rotating gear 162 are respectively engaged with the tooth blocks on the two groups of moving assemblies 56. The bottom outer side of the intermediate shaft 163 is bearing connected with the control lifting unit 17. The control lifting unit 17 includes a moving sleeve 171, a second lead screw 172, a second motor 173, a connecting plate 174, and a limiting circular rod 175. The top end of the connecting plate 174 is bearing connected with the bottom outer side of the intermediate shaft 163. The connecting plate 174 is symmetrically provided with two connecting plates 174. The top end of the connecting plate 174 is integrally installed with the moving sleeve 171. One of the moving sleeves 171 is provided with a second lead screw 172 in the middle. The other moving sleeve 171 is provided with a limiting circular rod 175 in the middle. The bottom of the second lead screw 172 is coaxially connected with the second motor 173. The bottom of the second motor 173 and the bottom of the limiting circular rod 175 are installed above the control displacement unit 18.

[0040] The control displacement unit 18 comprises a connecting cylinder 181, a third screw rod 182, a third motor 183 and a placing horizontal plate 184, the top of the placing horizontal plate 184 is provided with the second motor 173 and the limiting round rod 175, and the bottom of the placing horizontal plate 184 is provided with the connecting cylinder 181, the middle of the connecting cylinder 181 is provided with the third screw rod 182 which is screwed, the top of the third screw rod 182 is coaxially connected with the third motor 183, and the third motor 183 is installed in the hollow structure inside the mounting seat 91.

[0041] The bottom of the working unit 16 is driven to work by the driving unit 19, and the driving unit 19 comprises a driving shaft 191 and a driving motor 192, the bottom of the driving shaft 191 is coaxially connected with the driving motor 192, the driving motor 192 is arranged above the placing horizontal plate 184, and the outer side of the driving shaft 191 is provided with a limiting block which is clamped between the limiting clamping grooves inside the middle shaft 163.

[0042] Specifically, when the two moving center frame bodies 52 are controlled to move at equal distances at the same time, at this time, the control main body 2 outside gives the driving motor 192 on the driving unit 19 an execution signal, so that the driving motor 192 drives the driving shaft 191 to rotate, when the driving shaft 191 rotates, the middle shaft 163 rotates, and when the middle shaft 163 rotates, the first rotating gear 161 and the second rotating gear 162 rotate, because the positions of the two gears correspond to the positions of the rectangular rods 563 on the two groups of moving assemblies 56, and the tooth blocks on the two groups of rectangular rods 563 are correspondingly arranged, when the first rotating gear 161 and the second rotating gear 162 rotate, the two groups of rectangular rods 563 distributed above and below move in opposite directions, when the rectangular rods 563 move, in cooperation with the arrangement of the limiting sliding blocks 564 outside, the rectangular rods 563 drive the connecting horizontal rods 562 to move, the connecting horizontal rods 562 drive the fixed vertical rods 561 at the top to move, and the purpose of moving the second limiting frame 55 is achieved, and thus the moving center frame bodies 52 on the second limiting frame 55 move in position;

[0043] When the movement of the moving center frame 52 on one side needs to be controlled, the second motor 173 is started to drive the second lead screw 172 at the top end to rotate. When the second lead screw 172 rotates, it is in threaded connection with the moving sleeve 171, so that the moving sleeve 171 drives the entire working unit 16 to rise and fall as a whole through the connecting plate 174. When it rises, the first rotating gear 161 above is disengaged from the meshing with the rectangular rod 563 above, and the second rotating gear 162 below is engaged with the rectangular rod 563 above. Thus, when the driving unit 19 drives the working unit 16 to work, it drives the moving center frame 52 on one side to move.

[0044] Therefore, the position of supporting the parts can be adjusted flexibly according to the shape and size of the parts. When the position of the entire balancing assembly 5 needs to be changed, only the third motor 183 is started to drive the third lead screw 182 to rotate and complete the displacement change of the connecting cylinder 181. When the connecting cylinder 181 moves, the position of the placement horizontal plate 184 can be moved. Through the movement of the placement horizontal plate 184, the purpose of moving the working unit 16, the control lifting unit 17 and the balancing assembly 5 at the top end as a whole is achieved.

[0045] As a further preferred embodiment of the present embodiment, when grinding, according to Figure 3 、 Figure 4 、 Figure 10 、 Figure 11 and Figure 12 , the grinding unit includes a grinding disc 14, a rotating shaft 141 and a servo motor 142. The top end of the servo motor 142 is coaxially connected with the rotating shaft 141, and the grinding disc 14 is coaxially connected at the top end of the rotating shaft 141. A protective cover 12 is provided outside the rotating shaft 141 for protection. The servo motor 142 is arranged in the hollow structure of the grinding head seat 7, and the top end of the grinding head seat 7 is detachably connected with the rectangular protective cover 12. The protective cover 12 is provided with clamping seats 20 at equal intervals outside, and the top end of the clamping seat 20 is arc-shaped opening structure.

[0046] The grinding head seat 7 is arranged in a rectangular top end and a plate-shaped bottom structure, the rectangular structure is arranged at the middle position of the plate-shaped structure, and the plate-shaped structure is provided with a movable dust removal assembly 13 on both sides, and the plate-shaped structure is arranged at the top end of the sliding plate 8, the movable dust removal assembly 13 comprises a suction pump 131, a suction pipe 132, a connecting pipe 133 and a collection box 134, the suction pump 131 is detachably installed at the both sides of the plate-shaped structure of the grinding head seat 7, and the outer part is respectively penetrated between the suction pipe 132 and the connecting pipe 133, one side of the suction pipe 132 is limited outside the protective cover 12 through the clamping seat 20, the bottom of the connecting pipe 133 is penetrated between the collection box 134, the top end of the collection box 134 is provided with a sliding block which slides in the hollow groove at the bottom of the sliding plate 8, the bottom of the collection box 134 is clamped with the top groove of the workbench 11, and it moves in the groove of the workbench 11.

[0047] The bottom of the sliding plate 8 is symmetrically provided with two groups of movable sliding seats 82, and the movable sliding seats 82 are clamped in the rectangular holes at the top end of the workbench 11, the outer side of the movable sliding seat 82 is connected with one side of the telescopic air cylinder 15, and the other side of the telescopic air cylinder 15 is connected with the inner wall of the rectangular hole through the air cylinder seat, the inside of the sliding plate 8 is provided with a first moving mechanism 81 connected with the bottom plate-shaped structure of the grinding head seat 7, the first moving mechanism 81 comprises a first moving mechanism 81 and a first lead screw 811, the top end of the first moving mechanism 81 is provided with a coaxially connected first lead screw 811, the outside of the first lead screw 811 is threadedly connected with the sleeve below the bottom plate-shaped structure of the grinding head seat 7, and the sleeve of the bottom plate-shaped structure of the grinding head seat 7 penetrates the limiting groove on the surface of the sliding plate 8.

[0048] Specifically, when grinding, first, start the servo motor 142 inside the grinding head seat 7, so that it drives the rotating shaft 141 to rotate, when the rotating shaft 141 rotates, drive the grinding disc 14 to rotate, at this time, start the telescopic air cylinder 15, so that it pushes the movable sliding seat 82 at the bottom of the sliding plate 8, and then makes the sliding plate 8 move above the workbench 11, so that the grinding disc 14 reaches the inside of the part hole, and grinds the part hole.

[0049] When the servo motor 142 is started, the suction pump 131 can also be started, so that it sucks the debris generated by the grinding disc 14 through the suction pipe 132, then reaches the inside of the connecting pipe 133 through the suction pump 131, and finally reaches the inside of the collection box 134 for collection, so as to ensure that the whole grinding process can timely clean up the waste collection work, further, since the top end of the collection box 134 is provided with a sliding block which slides in the hollow groove at the top end of the sliding plate 8, so as to facilitate the subsequent disassembly and cleaning work of the collection box 134.

[0050] Further, in the present application, the protective cover 12 is provided by two half-rectangular structures, and the two half-rectangular structures are mounted by bolts, so that the protective cover 12 can be flexibly disassembled and replaced.

[0051] Finally, when the diamond pen 6 needs to process the grinding disc 14, the position of the entire grinding disc 14 can be offset to the position of the diamond pen 6, and the movement of the entire sliding plate 8 can be completed. Specifically, when offsetting, the first motor 812 needs to be started to drive the first lead screw 811 to rotate. When the first lead screw 811 rotates, it can be screwed with the sleeve below the bottom plate structure of the grinding head seat 7, thereby achieving the purpose of driving the entire grinding head seat 7 and the grinding unit at the top end to offset.

[0052] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A deep-hole grinding machine for internal holes of parts, characterized in that, The system includes a bed frame (1) for fixing to the ground. From left to right, a control body (2), a mounting assembly (9), and a fixing platform (10) are arranged at the top of the bed frame (1). The mounting assembly (9) includes a mounting base (91) and a mounting top plate (92). The mounting base (91) has a U-shaped cross-section and its top is detachable from the mounting top plate (92). A limit rail (93) is provided at the top of the mounting top plate (92). From left to right, a headstock box (3) and a balancing assembly (5) are arranged above the mounting top plate (92). The headstock box (3) and the balancing assembly (5) slide on the limit rail (93) and are detachable from the mounting top plate (92). A locking mechanism is provided at the top of the headstock box (3). The disc (4) is used to clamp the deep hole parts. The balancing assembly (5) includes two moving center frames (52) and one fixed center frame (51). The two moving center frames (52) are symmetrically arranged about the central axis of the fixed center frame (51) and are used to perform multi-position balancing work on the outside of the deep hole parts. The top of the fixed table (10) is detached and installed from the worktable (11). The top of the worktable (11) is provided with a sliding slide plate (8). The top of the slide plate (8) is connected to the grinding head seat (7) through the first moving mechanism (81). The top of the grinding head seat (7) is provided with a grinding unit for grinding work. The mounting assembly (9) is provided with a diamond pen (6) on the outer side of the top of the fixed table (10).

2. The deep hole grinding machine tool for internal holes of parts as described in claim 1, characterized in that: Both the fixed center frame (51) and the mobile center frame (52) are integrally equipped with a connecting seat (53) at their bottoms. A second limiting frame (55) is integrally installed below the connecting seat (53) at the bottom of the mobile center frame (52), and a first limiting frame (54) is integrally installed below the connecting seat (53) at the bottom of the fixed center frame (51). A moving component (56) is connected below the second limiting frame (55) at the bottom of each of the two mobile center frames (52).

3. The deep hole grinding machine tool for internal holes of parts as described in claim 2, characterized in that: The two sets of moving components (56) are arranged at different heights, and each includes a fixed vertical rod (561), a connecting horizontal rod (562), a rectangular rod (563), and a limiting slider (564). The top of the fixed vertical rod (561) is integrally installed with the center of the second limiting frame (55), and its bottom passes through the pre-reserved groove (94) at the top of the mounting base (91) and is integrally installed with the connecting horizontal rod (562). Two sets of rectangular rods (563) are symmetrically arranged at the top of the connecting horizontal rod (562), and the inner side of one of the rectangular rods (563) is divided at equal angles. The toothed blocks are arranged on the inner side of the rectangular rod (563) of the two sets of moving components (56), and the toothed blocks are symmetrically distributed on each other. The two sets of moving components (56) are driven to move by the working unit (16). The working unit (16) is provided with a control lifting unit (17) on the outside of the working unit (16) for controlling the working unit (16) to move up and down. The working unit (16) and the control lifting unit (17) are both set in the "U"-shaped hollow structure inside the mounting base (91), and the two are controlled to move by the control displacement unit (18).

4. The deep hole grinding machine tool for internal holes of parts as described in claim 3, characterized in that: The grinding unit includes a grinding disc (14), a rotating shaft (141), and a servo motor (142). The top end of the servo motor (142) is coaxially connected to the rotating shaft (141), and the grinding disc (14) is coaxially connected to the top end of the rotating shaft (141). A detachable and installable protective cover (12) is provided on the outside of the rotating shaft (141) to protect the rotating shaft (141). The servo motor (142) is located in the hollow structure inside the grinding head seat (7), and the top end of the grinding head seat (7) is detachable and installable from the rectangular protective cover (12). The protective cover (12) is provided with equidistant brackets (20) on the outside, and the top end of the brackets (20) has an arc-shaped opening structure.

5. The deep hole grinding machine tool for internal holes of parts as described in claim 4, characterized in that: The grinding head base (7) is configured with a rectangular top and a plate-like bottom. The rectangular structure is located in the middle of the plate-like structure, and movable dust removal components (13) are provided on both sides of the plate-like structure. The plate-like structure is located at the top of the slide plate (8). The movable dust removal components (13) include a suction pump (131), a suction pipe (132), a connecting pipe (133), and a collection box (134). The suction pump (131) is detachably installed on both sides of the plate-like structure of the grinding head base (7), and externally connected to the plate. The suction tube (132) and the connecting tube (133) are connected. One side of the suction tube (132) is limited to the outside of the protective cover (12) by the bracket (20). The bottom of the connecting tube (133) is connected to the collection box (134). The top of the collection box (134) is provided with a slider that slides in the hollow groove at the bottom of the slide plate (8). The bottom of the collection box (134) is engaged with the top groove of the worktable (11) and moves in the groove of the worktable (11).

6. The deep hole grinding machine tool for internal holes of parts as described in claim 5, characterized in that: Two sets of movable slides (82) are symmetrically arranged at the bottom of the slide plate (8), and the movable slides (82) are engaged in the rectangular hole at the top of the worktable (11). The outer side of the movable slides (82) is connected to one side of the telescopic cylinder (15), and the other side of the telescopic cylinder (15) is connected to the inner wall of the rectangular hole through the cylinder seat. The slide plate (8) is provided with a first moving mechanism (81) connected to the bottom plate structure of the grinding head seat (7). The first moving mechanism (81) includes a first moving mechanism (81) and a first lead screw (811). The top of the first moving mechanism (81) is provided with a coaxially connected first lead screw (811). The outer side of the first lead screw (811) is threadedly connected to the sleeve below the bottom plate structure of the grinding head seat (7), and the sleeve of the bottom plate structure of the grinding head seat (7) passes through the limiting groove on the surface of the slide plate (8).

7. The deep hole grinding machine tool for internal holes of parts as described in claim 3, characterized in that: The working unit (16) includes a first rotating gear (161), a second rotating gear (162), and an intermediate shaft (163). The first rotating gear (161) and the second rotating gear (162) are connected by the intermediate shaft (163). The distance between the first rotating gear (161) and the second rotating gear (162) is the same as the vertical height of the two sets of moving components (56). The first rotating gear (161) and the second rotating gear (162) respectively mesh with the tooth blocks on the two sets of moving components (56). The bottom outer side of the intermediate shaft (163) is connected to the control lifting unit (17) by a bearing. The control lifting unit (17) includes a moving sleeve (171) and a second lead screw (172). The system includes a second motor (173), a connecting plate (174), and a limiting rod (175). The top of the connecting plate (174) is connected to the bottom outer bearing of the intermediate shaft (163), and two connecting plates (174) are symmetrically arranged. A movable sleeve (171) is integrally installed on the top of the connecting plate (174). A second lead screw (172) with a threaded connection is provided in the middle of one of the movable sleeves (171), and a limiting rod (175) is provided in the middle of the other movable sleeve (171). The bottom of the second lead screw (172) is coaxially connected to the second motor (173). The bottom of the second motor (173) and the bottom of the limiting rod (175) are both installed above the control displacement unit (18).

8. The deep hole grinding machine tool for internal holes of parts as described in claim 7, characterized in that: The control displacement unit (18) includes a connecting cylinder (181), a third lead screw (182), a third motor (183), and a placement plate (184). The top of the placement plate (184) is provided with a second motor (173) and a limiting rod (175), and the bottom of the placement plate (184) is provided with a connecting cylinder (181). The middle of the connecting cylinder (181) is provided with a threaded third lead screw (182). The top of the third lead screw (182) is coaxially connected to the third motor (183). The third motor (183) is installed in the hollow structure inside the mounting base (91).

9. A deep-hole part internal grinding machine tool as described in claim 8, characterized in that: The bottom of the working unit (16) is driven by the driving unit (19), and the driving unit (19) includes a driving shaft (191) and a driving motor (192). The bottom of the driving shaft (191) is coaxially connected to the driving motor (192). The driving motor (192) is located above the horizontal plate (184). A limiting block is provided on the outside of the driving shaft (191) to engage with the limiting slot inside the intermediate shaft (163).

Images