Grinding wheel dresser and full-automatic composite grinding processing equipment

Abstract

The application discloses a grinding wheel dresser and a full-automatic composite grinding machining device. The grinding wheel dresser comprises a door-shaped frame body, a first servo motor is installed on the top of the door-shaped frame body, a swing arm is installed on the output end of the first servo motor, the first servo motor adjusts the deflection angle of the swing arm, the swing arm is located in the door-shaped frame body, a second servo motor and a moving frame are installed on the swing arm, the second servo motor drives the moving frame to move along the length direction of the swing arm, the bottom of the moving frame is installed with a dressing piece, and the dressing piece is used for on-line dressing of a grinding wheel working surface. A cross-shaped sliding table is located on one side of the grinding wheel, the top of the cross-shaped sliding table is used for installing the door-shaped frame body, and the cross-shaped sliding table controls the dressing piece to move in two vertical directions horizontally. The grinding wheel dresser has higher control precision, stronger dynamic performance, higher flexibility, stronger anti-overload capacity and better stability, adaptability, fault tolerance and the like. The machining precision, machining efficiency and machining quality are improved, and more strict and diversified machining requirements can be met.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of grinding wheel dressing, and particularly relates to a grinding wheel dresser and a full-automatic composite grinding equipment. BACKGROUND

[0002] A grinding wheel is a tool with the widest application among abrasive tools, and can be used for rough grinding, semi-precision grinding, precision grinding, slotting and cutting of various profiles such as the outer circle, inner circle and plane of metal or non-metal workpieces. After working for a period of time, the surface of the grinding wheel will be worn to a certain extent, and should be corrected to restore the grinding performance and correct geometric shape.

[0003] At present, the grinding wheel is mostly corrected by manual dressing, which often consumes a lot of time to dress the grinding wheel, and needs manual measurement and repeated dressing, which is time-consuming and laborious. The dressing of grinding wheels of different specifications requires higher operation level of technicians. The product precision, quality, product stability and dressing efficiency of manual dressing are low.

[0004] The CN208629237U discloses a three-servo grinding wheel dressing device and a multifunctional composite grinding machine, which comprises a dresser support, a No. 3 servo motor, a swing rod and a diamond pen. The top of the dresser support is provided with the No. 3 servo motor, the No. 3 servo motor is connected with the swing rod through a No. 3 speed reducer, and the diamond pen is arranged on the swing rod. The grinding wheel dresser further comprises a bottom plate, a dressing compensation unit and a dressing interpolation unit. The dressing compensation unit is installed on the bottom plate, and the dressing interpolation unit is arranged above the dressing compensation unit. The dressing compensation unit and the dressing interpolation unit control the movement of the dresser support along two vertical directions.

[0005] During the dressing of the grinding wheel, the No. 1 servo motor and the No. 2 servo motor are needed to adjust the dresser support to the design position, and the swing rod is driven by the No. 3 servo motor to make angular adjustment, so that the diamond pen thereon can dress the grinding wheel. When the working surface of the grinding wheel is a special-shaped or complex structure, the No. 1 servo motor and the No. 2 servo motor need to be adjusted to achieve the dressing. However, the No. 1 servo motor and the No. 2 servo motor mainly control the rapid movement of the dresser support along two vertical directions to the design position. For the dressing of the working surface of the grinding wheel, the precision requirement cannot be met for precision dressing, so that the dressing precision and stability still need to be further improved. Meanwhile, the three-servo control adaptability and fault tolerance also need to be further improved. SUMMARY

[0006] To address the above technical issues, this application utilizes a four-servo trimming system, which offers advantages over a three-servo system, including higher control accuracy, stronger dynamic performance, greater flexibility, greater overload resistance, and improved stability, adaptability, and fault tolerance. These advantages help improve machining accuracy, efficiency, and quality, thereby meeting more stringent and diverse machining requirements. The technical solution is as follows:

[0007] A grinding wheel dresser comprising:

[0008] A portal frame is provided, wherein a No. 1 servo motor is installed on the top of the portal frame, a swing arm is installed on the output end of the No. 1 servo motor, and the No. 1 servo motor adjusts the deflection angle of the swing arm. The swing arm is located in the portal frame, and a No. 2 servo motor and a movable frame are installed on the swing arm. The No. 2 servo motor drives the movable frame to move along the length direction of the swing arm. A dressing piece and a driver for driving the dressing piece to rotate are installed at the bottom of the movable frame. The dressing piece is used for online dressing of the working surface of the grinding wheel.

[0009] The cross-shaped slide is located on one side of the grinding wheel, and the top is used to install the portal frame. The cross-shaped slide controls the movement of the dressing piece in two horizontal and vertical directions.

[0010] Preferably, a scale bar is installed on the movable frame, and a scale angle code is provided on the swing arm, and the scale angle code is used to align with the corresponding scale on the scale bar.

[0011] Preferably, the cross-shaped slide consists of an X-axis slide assembly and a Y-axis slide assembly;

[0012] The X-axis slide assembly and the Y-axis slide assembly each include an upper slide, a lower fixed platform, and a drive shield. The drive shield is fixedly mounted on one end of the lower fixed platform. The upper slide is slidably mounted on the lower fixed platform. Water retaining grooves are provided on both sides of the lower fixed platform.

[0013] The X-axis slide assembly and the Y-axis slide assembly also include:

[0014] An extension plate 1 is installed at one end of the lower fixed platform, and a water retaining groove 1 is provided on the side thereof;

[0015] The second extension plate is installed at the other end of the lower fixed platform, and a second water retaining groove is provided on the side thereof. The driving protective cover is installed on the second extension plate;

[0016] Side baffles are installed on the two sides of the upper slide. The side baffles are provided with inwardly extending baffles near the bottom. The baffles are adapted to the first, second and third water retaining grooves.

[0017] An end sealing cover 1 is installed at an end of the upper slide away from the driving protective cover, and a wiper plate 1 is installed at the bottom, and the wiper plate 1 contacts the upper surface of the extension plate 1;

[0018] The second end cover is installed on one end of the upper sliding table close to the driving protective cover, and the bottom is provided with a second water scraping plate which contacts the outer surface of the driving protective cover.

[0019] Preferably, the baffle is arranged obliquely upward, the upper surface of the baffle and the upper wall of the inner side of the water retaining groove form an airflow compression area, a high-pressure blowing assembly is installed on the side baffle and used to blow to the airflow compression area at the joint of the baffle and the side baffle, a waterproof rubber strip is arranged on the upper surface of the baffle close to the end position, and the waterproof rubber strip is in a sheet structure and gradually deviates from the side baffle and gradually approaches the upper wall of the inner side of the water retaining groove.

[0020] Preferably, the high-pressure blowing assembly comprises an external pipe joint installed on the side baffle and a blowing strip installed on the inner wall of the side baffle, the blowing strip is provided with a uniform gas cavity in communication with the external pipe joint, and the bottom of the uniform gas cavity is provided with a high-pressure gas hole.

[0021] The joint of the baffle and the side baffle is provided with a flow guide body which is used to divert the high-pressure gas from the high-pressure gas hole to the area between the baffle and the water retaining groove.

[0022] When the upper sliding table moves relative to the lower fixed table, the high-pressure gas blows through the high-pressure gas hole to deflect the top of the waterproof rubber strip outward and separate it from the upper wall of the inner side of the water retaining groove.

[0023] When the upper sliding table is stationary relative to the lower fixed table, the high-pressure gas does not blow, and the top of the waterproof rubber strip is attached to the upper wall of the inner side of the water retaining groove to form a waterproof structure.

[0024] Preferably, the top of the first end cover is provided with an extended upper plate one which is fixed to one end of the upper sliding table by bolts, and the upper sliding table is provided with an end inner recess structure one for installing the extended upper plate one.

[0025] One end of the second end cover is provided with an extended upper plate two which is fixed to one end of the upper sliding table by bolts, the upper sliding table is provided with an end inner recess structure two for installing the extended upper plate two, the other end of the second end cover is provided with a driving protective cover opening, and the second water scraping plate is fixedly installed at the driving protective cover opening.

[0026] Preferably, the baffle and the water retaining groove three are each provided with at least two groups and are arranged in an up-down manner.

[0027] The end of the side baffle is provided with an inner sinking area one and an inner sinking area two, the inner sinking area one is used to install the first end cover, and the inner sinking area two is used to install the second end cover.

[0028] A waterproof sheet is installed between the inner sinking area one and the first end cover and between the inner sinking area two and the second end cover.

[0029] The extension plate one comprises a mounting vertical plate one, a horizontal support plate one and a reinforcing side plate, the mounting vertical plate one is fixedly installed on the lower fixed table, the horizontal support plate one is arranged at the top of the mounting vertical plate one, the reinforcing side plate is arranged between the horizontal support plate one and the mounting vertical plate one for enhancing structural strength, and the water retaining groove one is arranged on the reinforcing side plate;

[0030] The extension plate two comprises a mounting vertical plate two, a horizontal support plate two and an extension lower plate, the mounting vertical plate two is fixed on the lower fixed table, the horizontal support plate two is arranged at the bottom of the mounting vertical plate two, the extension lower plate is provided with two groups of extension lower plates which are respectively arranged on the two sides of the lower surface of the horizontal support plate two and are arranged in parallel with the horizontal support plate two, the water retaining groove two is arranged on the side opposite to the extension lower plate, and the water retaining groove four is arranged on the side opposite to the extension lower plate;

[0031] The two side ends of the driving protective cover are provided with extension plate strips, the outer side of the extension plate strip is provided with a horizontal mounting plate and a water retaining plate, the water retaining plate is below the horizontal mounting plate, one end of the water retaining plate extends to the outer side of the driving protective cover, the horizontal mounting plate is fixed on the horizontal support plate two, the water retaining plate is arranged in the water retaining groove four, and a waterproof strip is arranged between the water retaining plate and the water retaining groove four.

[0032] A full-automatic composite grinding processing equipment comprises a workpiece fixing mechanism, a grinding system and a dresser, the workpiece fixing mechanism and the dresser are respectively located on the two sides of the grinding system, and the grinding system is used for grinding processing treatment of a workpiece surface.

[0033] Compared with the prior art, the full-automatic composite grinding processing equipment has the following beneficial effects:

[0034] Compared with a three-servo system, the four-servo dressing system has higher control precision, stronger dynamic performance, higher flexibility, stronger anti-overload capacity, better stability, adaptability and fault tolerance, and other advantages. These advantages help to improve the machining precision, machining efficiency and machining quality, so as to meet more strict and diversified machining requirements.

[0035] The inventor has years of design experience and customer feedback problems, and it is necessary to apply grinding fluid to the grinding wheel and the workpiece during grinding, which carries grinding dust and easily enters the slide to damage the slide, resulting in the inability to complete ultra-high precision machining of the workpiece feeding accuracy. Therefore, the end and side of the slide assembly are improved, the end is blocked by end cover two and end cover one, and the surface of the extension plate is cleaned by the water scraping plate, the side is blocked by the plurality of blocking strips and the water blocking groove to form a plurality of sealing structures arranged in an up-down manner to prevent the grinding fluid from entering. Secondly, the high-pressure gas blowing part is arranged on the side, which can blow high pressure when the upper slide slides relative to the lower fixed table, and the directional airflow from the inside to the outside forms a dynamic sealing structure to prevent the grinding fluid from entering; when the upper slide is stationary relative to the lower fixed table, the top of the waterproof rubber strip will be attached to the inner side wall of the water blocking groove to form a static sealing structure to prevent the grinding fluid from entering. The selective operation of dynamic and static sealing can effectively realize the sealing operation of the feeding work, thereby ensuring that the slide assembly has a long service life under complex working conditions, and also ensures the machining precision of the grinding machine.

[0036] The full-automatic composite grinding machining equipment of the application solves the basic problem of the dresser, and also aims at the problem that the existing workpiece is basically clamped and fixed from the inside when machining the outer circle channel, but when clamping and fixing the workpiece with a relatively small thickness, the force cannot be too large or too small to affect the machining precision. The application adopts full-circumferential clamping and fixing from the inside, the supporting surface is large and the pressing force is consistent, and the problems of indentation and workpiece deformation do not occur, the stress is uniform during grinding machining, and the machining precision is ensured. On the basis of clamping and fixing the workpiece by the full-circumferential clamping mechanism, the inventor designs a magnetic type workpiece feeding and discharging assembly, which is used in cooperation with the full-circumferential clamping mechanism for clamping and fixing the workpiece, can realize the opening or release of the full-circumferential clamping action of the workpiece and automatic feeding and discharging, and the machining precision and efficiency can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 It is a schematic diagram of the overall structure of the application;

[0038] Figure 2 It is a connection relationship diagram of the swing arm and the moving frame of the application;

[0039] Figure 3 It is a back view of the swing arm and the moving frame of the application;

[0040] Figure 4 It is a schematic diagram of the overall structure of the application;

[0041] Figure 5 It is Figure 4 It is a local enlarged view of A in FIG. 8;

[0042] Figure 6 It is an internal structure diagram of the slide of the application;

[0043] Figure 7 Structure diagram of the connection between the extension plate and the shield;

[0044] Figure 8 Structure diagram of the shield;

[0045] Figure 9 Structure diagram of the extension plate;

[0046] Figure 10 Structure diagram of the wiper;

[0047] Figure 11 Structure diagram of the side plate;

[0048] Figure 12 Structure diagram of the lower fixed platform and the side plate;

[0049] Figure 13 Overall structure diagram of the full-automatic composite grinding processing equipment;

[0050] Figure 14 Back view of the overall structure of the full-automatic composite grinding processing equipment;

[0051] Figure 15 Structure horizontal sectional view of the workpiece fixing mechanism;

[0052] Figure 16 Figure 15 Local enlarged view of B in the middle;

[0053] Figure 17 Structure vertical sectional view of the workpiece fixing mechanism;

[0054] Figure 18 Horizontal sectional view of the taking and placing rack;

[0055] Figure 19 Vertical sectional view of the taking and placing rack. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0057] ​In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do 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 therefore cannot be understood as a limitation on the present application.

[0058] Embodiment 1, as shown in a grinding wheel dresser, comprising: Figures 1 to 3

[0059] The door-shaped frame body 10 is provided with a first servo motor 11 at the top, and the output end of the first servo motor 11 is provided with a swing arm 12. The first servo motor 11 adjusts the deflection angle of the swing arm 12. The swing arm 12 is located in the door-shaped frame body 10, and the swing arm 12 is provided with a second servo motor 13 and a moving frame 14. The second servo motor 13 drives the moving frame 14 to move along the length direction of the swing arm 12. The bottom of the moving frame 14 is provided with a dressing part 15 and a driver 16 for rotating the dressing part 15. The dressing part 15 is used for online dressing of the working surface of the grinding wheel.

[0060] The cross-shaped sliding table is located on one side of the grinding wheel, and the top is used for installing the door-shaped frame body. The cross-shaped sliding table controls the movement of the dressing part 15 in two perpendicular horizontal directions.

[0061] The moving frame 14 is provided with a scale bar 141, and the swing arm 12 is provided with a scale angle code 121 for aligning the corresponding scale on the scale bar 141.

[0062] Embodiment 2, the inventor has many years of design experience and customer feedback problems. When grinding, grinding fluid needs to be applied to the grinding wheel and the workpiece. The grinding fluid may carry grinding dust, which may enter the sliding table and damage the sliding table, resulting in the inability to complete ultra-high precision machining of the workpiece feeding accuracy.

[0063] As shown in the cross-shaped sliding table is composed of an X-axis sliding table assembly and a Y-axis sliding table assembly; Figures 4 to 12

[0064] The X-axis sliding table assembly and the Y-axis sliding table assembly each include an upper sliding table 101, a lower fixed table 102, and a drive protection cover 103. The drive protection cover 103 is fixedly installed at one end of the lower fixed table 102. The upper sliding table 101 is slidingly installed on the lower fixed table 102. The lower fixed table 102 is provided with a water retaining groove 1021 on both sides.

[0065] The X-axis sliding table assembly and the Y-axis sliding table assembly further include:

[0066] ​​The extension plate one 104 is installed at one end of the lower fixed platform 102, and the side is provided with a water retaining groove one 1041;

[0067] The extension plate two 105 is installed at the other end of the lower fixed platform 102, and the side is provided with a water retaining groove two 1051, and the drive protective cover 103 is installed on the extension plate two 105;

[0068] The side baffle 106 is installed at both sides of the upper sliding platform 101, and the side baffle 106 is provided with an inwardly extending baffle strip 1061 near the bottom position, and the baffle strip 1061 is matched with the water retaining groove one 1041, the water retaining groove two 1051 and the water retaining groove three 1021.

[0069] The end cover one 107 is installed at one end of the upper sliding platform 101 away from the drive protective cover 103, and the bottom is provided with a water scraping plate one 1071 which contacts the upper surface of the extension plate one 104;

[0070] The end cover two 108 is installed at one end of the upper sliding platform 101 close to the drive protective cover 103, and the bottom is provided with a water scraping plate two 1081 which contacts the outer surface of the drive protective cover 103.

[0071] The end cover one 107 and the end cover two 108 are used to seal the ends of the upper sliding platform 101 and the lower fixed platform 102, and when the upper sliding platform 101 moves relative to the lower fixed platform 102, the water scraping plate one 1071 and the water scraping plate two 1081 clean the surfaces of the extension plate one 104 and the drive protective cover 103, and the grinding liquid on the surfaces is scraped off. The side is matched with the side baffle 106 and the water retaining groove three 1021 of the side of the lower fixed platform 102, and at the same time, the baffle strip 1061 is freely matched with the water retaining groove one 1041, the water retaining groove two 1051 and the water retaining groove three 1021 during relative movement, so that the side is always sealed to the upper sliding platform 101 and the lower fixed platform 102 during the whole process.

[0072] In the feeding workbench, the baffle strip 1061 is arranged obliquely upward, the upper surface of the baffle strip 1061 and the inner side upper wall of the water retaining groove form an airflow compression area, a high-pressure blowing assembly is installed on the side baffle 106, the high-pressure blowing assembly is used to blow to the airflow compression area at the joint of the baffle strip 1061 and the side baffle 106, a waterproof rubber strip 1062 is arranged on the upper surface of the baffle strip 1061 close to the end position, the waterproof rubber strip 1062 is a sheet structure and the free end gradually deviates from the side baffle 106 and gradually approaches the inner side upper wall of the water retaining groove.

[0073] The high-pressure blowing assembly comprises an external pipe joint 1064 mounted on the side baffle 106 and a blowing strip 1063 mounted on the inner wall of the side baffle 106, and a uniform gas cavity in communication with the external pipe joint 1064 is arranged in the blowing strip 1063, and a high-pressure gas hole 1065 is arranged at the bottom of the uniform gas cavity;

[0074] A flow guide 1066 is arranged at the joint of the baffle 1061 and the side baffle 106, and the flow guide 1066 is used for diverting the high-pressure gas from the high-pressure gas hole 1065 to the area between the baffle 1061 and the water retaining groove;

[0075] When the upper sliding table 101 moves relative to the lower fixed table 102, the high-pressure gas blows to deflect the top of the waterproof rubber strip 1062 outward and separate the top of the waterproof rubber strip 1062 from the upper wall of the inner side of the water retaining groove through the high-pressure gas hole 1065;

[0076] When the upper sliding table 101 is stationary relative to the lower fixed table 102, the high-pressure gas does not blow, and the top of the waterproof rubber strip 1062 is attached to the upper wall of the inner side of the water retaining groove to form a waterproof structure.

[0077] The side sealing is the key: the baffle 1061 and the water retaining groove 1021 are each provided with at least two groups arranged in an upper and lower manner to form a multiple sealing structure;

[0078] The end of the side baffle 106 is provided with an inner sinking area one and an inner sinking area two, the inner sinking area one is used for mounting an end cover one 107, and the inner sinking area two is used for mounting an end cover two 108;

[0079] A waterproof sheet is mounted between the inner sinking area one and the end cover one 107 and between the inner sinking area two and the end cover two 108. The waterproof sheet is sealed and waterproofed to prevent leakage at the lap joint.

[0080] The wiper plate one 1071 and the wiper plate two 1081 each comprise a wiper body one 10711 and a wiper body two 10712, and a body 10713, the body 10713 is fixed to the corresponding end cover, the wiper body one 10711 and the wiper body two 10712 are arranged at the bottom of the body 10713 and are arranged in a Y shape, and the wiper plate one 1071 and the wiper plate two 1081 are made of flexible material. The wiper body one 10711 and the wiper body two 10712 are used for efficiently cleaning the upper surface of the extension plate one 104 and the driving protective cover 103.

[0081] The top of the end cover one 107 is provided with an extension upper plate one 1072, the extension upper plate one 1072 is fixed to one end of the upper sliding table 101 through bolts, and the upper sliding table 101 is provided with an end inner recess structure one 1012 for mounting the extension upper plate one 1072 to achieve the effect of positioning and mounting.

[0082] An extended upper plate 1082 is provided on the top of one end of the end seal cover 108, and the extended upper plate 1082 is fixed to one end of the upper slide 101 by bolts. The upper slide 101 is provided with an end concave structure 1011 for installing the extended upper plate 1082. The other end of the end seal cover 108 is provided with a drive protective cover notch 1083, and the wiper plate 1081 is fixedly installed at the drive protective cover notch 1083.

[0083] The extension plate 104 includes a mounting vertical plate 1042, a horizontal support plate 1044 and a reinforced side plate 1043. The mounting vertical plate 1042 is fixedly installed on the lower fixed platform 102, the horizontal support plate 1044 is arranged on the top of the mounting vertical plate 1042, the reinforced side plate 1043 is arranged between the horizontal support plate 1044 and the mounting vertical plate 1042 to enhance the structural strength, and the water retaining groove 1041 is arranged on the reinforced side plate 1043.

[0084] The extension plate 2 105 includes an installation vertical plate 2 1054, a horizontal support plate 2 1052, and an extension lower plate 1053. The installation vertical plate 2 1054 is fixed on the lower fixed platform 102, and the horizontal support plate 2 1052 is arranged at the bottom of the installation vertical plate 2 1054. The extension lower plate 1053 is provided with two groups of water retaining grooves 1051 and 10531 respectively installed on both sides of the lower surface of the horizontal support plate 2 1052 and arranged parallel to the horizontal support plate 2 1052.

[0085] The two side ends of the driving protective cover 103 are provided with extension slats 1031, and the outer side of the extension slats 1031 is installed with a horizontal mounting plate 1032 and a water baffle 1033. The water baffle 1033 is located below the horizontal mounting plate 1032 and one end of the water baffle 1033 extends to the outer side of the driving protective cover 103. The horizontal mounting plate 1032 is fixed on the horizontal support plate 1052, and the water baffle 1033 is installed in the water retaining groove 10531 and a waterproof strip is installed between the two.

[0086] Therefore, the end and side of the slide assembly are improved, the end is blocked by the end cover two and the end cover one, and the surface of the extension plate is cleaned by the wiper, the side is adapted by multiple blocking strips and water blocking grooves to form multiple sealing structures arranged in an up-down manner to prevent the grinding fluid from entering. In addition, the high-pressure gas blowing part is arranged on the side, which can blow high pressure when the upper slide table slides relative to the lower fixed table, and directional airflow from inside to outside is formed to form a dynamic sealing structure to prevent the grinding fluid from entering. When the upper slide table is stationary relative to the lower fixed table, the top of the waterproof rubber strip will be attached to the inner side wall of the water blocking groove to form a static sealing structure to prevent the grinding fluid from entering. The selective operation of dynamic and static sealing can effectively realize the sealing operation of the feeding work, thereby ensuring the long service life of the slide assembly under complex working conditions, and also ensuring the machining precision of the grinding machine.

[0087] Embodiment 3, as shown in Figure 13 and Figure 14 An automatic composite grinding machining device, comprising a workpiece fixing mechanism, a grinding system and a dresser, the workpiece fixing mechanism and the dresser are respectively located on both sides of the grinding system, and the grinding system is used for grinding machining treatment of the workpiece surface.

[0088] The inventor also found that in the application of the composite grinding device, the existing bearing workpiece is basically clamped and fixed from the inside during the outer circle machining, but when clamping and fixing the workpiece with thin thickness, the force cannot be too large or too small to affect the machining precision.

[0089] As shown in Figures 15 to 17 The workpiece fixing mechanism comprises a mounting frame one 30, a servo motor 31 and a rotary disc 32 are installed on the mounting frame one 30, the servo motor 31 drives the rotary disc 32 to rotate at high speed through a rotary shaft 311, a center rod 321 is installed in the middle of the side of the rotary disc 32 opposite to the rotary shaft 311, radial guide grooves one 322 are arranged on the left and right sides of the center rod 321, radial guide grooves two 323 are arranged on the upper and lower sides of the center rod 321, a reset disc 324 and a driving disc are sleeved on the center rod 321, the reset disc 324 is located between the driving disc and the rotary disc 32, a guide rod 325 is arranged on the side of the reset disc 324 opposite to the rotary disc 32, the guide rod 325 is provided with multiple guide rods 325 and is uniformly distributed on the periphery of the center rod 321, and one end of the guide rod 325 penetrates the rotary disc 32 and is connected with a stop head, a spring is sleeved on the guide rod 325 between the reset disc 324 and the rotary disc 32;

[0090] The driving disc comprises a main disc body 326 and a secondary disc body 327, and a flexible expansion rod 328 is installed between the main disc body 326 and the secondary disc body 327 and is provided with multiple groups of flexible expansion rods 328 which are uniformly distributed on the periphery of the center rod 321;

[0091] The inner support body one 329 is slidably installed in a radial guide groove one 322, and the inner support body one 329 and the secondary disc body 327 are connected through a rotating rod one 3210; the inner support body two 3211 is slidably installed in a radial guide groove two 323, and the inner support body two 3211 and the primary disc body 326 are connected through a rotating rod two 3212.

[0092] The center rod 321 is provided with a limiting body which is adjustable relative to the position of the center rod 321, and the limiting body is located on the side of the primary disc body 326 which faces away from the secondary disc body 327, and the limiting body is used for locking and fixing the position of the primary disc body 326 relative to the rotary disc 32.

[0093] The outer sides of the inner support body one 329 and the inner support body two 3211 are provided with flexible gaskets which are adapted to the inner channel of the steel ring, the flexible gaskets are composed of two symmetrically distributed flexible pieces, and the opposite sides of the flexible pieces are fixedly provided, and the sides away from the inner support body are provided with flexible bodies which are bent and deformed to both sides.

[0094] As shown in the drawings, Figures 18 to 19 The workpiece feeding and discharging assembly includes an X-axis linear module 40, a Y-axis linear module 50, a Z-axis linear module 70 and a clamping assembly, the X-axis linear module 40, the Y-axis linear module 50 and the Z-axis linear module 70 are used for adjusting the three-dimensional coordinate position of the clamping assembly, the clamping assembly includes a taking and placing frame 80, the taking and placing frame 80 is embedded with an electromagnet one 81 and an electromagnet two 82, the electromagnet one 81 is used for magnetically attracting and fixing a workpiece, the taking and placing frame 80 is provided with a clamping piece 83 and an axial hole 84, the side of the axial hole 84 is provided with a side guide groove 821 which is circumferentially arranged along the length direction of the hole, the clamping piece 83 is movably installed in the axial hole 84 and the side of the clamping piece 83 is provided with an ear plate 831, the ear plate 831 and the side guide groove 821 are slidably adapted, the electromagnet two 82 is used for attracting and clamping the clamping piece 83 and driving the clamping piece 83 to rotate, and the clamping piece 83 is used for selectively adapting with the acting block 3221.

[0095] The center rod 321 is provided with a blind hole in the middle of one end, a spring is installed in the blind hole, an axial slot is provided at the root of the blind hole, opposite sides of the axial slot are provided with position corresponding guide grooves 3213, and one end of the guide grooves 3213 away from the blind hole is provided with a sunken groove 3214.

[0096] The limiting body includes a slide pin 3215 and a sleeve 3216, the slide pin 3215 is arranged in the blind hole and abuts against the end of the spring, a hollow rod 3217 is installed at the end of the slide pin 3215 in the blind hole, an elastic hook head 3218 is arranged at the end of the hollow rod 3217, the elastic hook head 3218 is adapted in the guide groove and the sunken groove 3214, and the inside of the hollow rod 3217 is provided with a pulling rope 3219 which pulls the elastic hook head 3218.

[0097] The sliding pin 3215 is provided with a counterbore at the end opposite to the spring, a T-shaped rod 3220 is axially slidably installed in the counterbore, and a through hole is provided at the bottom of the counterbore, the T-shaped rod 3220 is fixedly connected with the end of the pulling rope 3219 away from the elastic hook head 3218, and an acting block 3221 is installed at the end of the T-shaped rod 3220;

[0098] The sleeve 3216 is fixed to the outside of the sliding pin 3215 and is sleeved on the outside of the center rod 321, the end of the sleeve 3216 is used to act on the main disc body 326, and the acting block 3221 is located on the side of the sleeve 3216 away from the main disc body 326;

[0099] The inside of one end of the sleeve 3216 is provided with a check ring, which is used to be sleeved on the outside of the T-shaped rod 3220 to limit the T-shaped rod 3220 located in the counterbore.

[0100] The elastic hook head 3218 includes a T-shaped hook head 32181 and an elastic body 32182, the small head of the T-shaped hook head 32181 penetrates through the elastic body 32182 and is inserted into the end of the hollow rod 3217, and the small head of the T-shaped hook head 32181 and the pulling rope 3219 are fixedly connected.

[0101] Workpiece fixing in grinding station:

[0102] The workpiece is fed to the fixed station, a workpiece fixing mechanism is provided at the fixed station, the workpiece fixing mechanism drives the workpiece to make high-speed rotary motion, and the inner side full circumferential surface of the workpiece is fixed by the workpiece fixing mechanism;

[0103] The workpiece full circumferential surface fixing steps are as follows:

[0104] The workpiece is axially sleeved on the outside of the inner support body one 329 and the inner support body two 3211 and the end face is attached to the rotary disc 32, the sleeve 3216 is axially close to the rotary disc 32, the end of the sleeve 3216 acts on the main disc body 326, because the elastic expansion rod 328 exists between the main disc body 326 and the auxiliary disc body 327, the reset disc 324 and the main disc body 326 and the auxiliary disc body 327 move close to the rotary disc 32 together, the rotary rod one 3210 drives the inner support body one 329 to expand outward along the radial guide groove one 322, the rotary rod two 3212 drives the inner support body two 3211 to expand outward along the radial guide groove two 323, until the spring between the reset disc 324 and the rotary disc 32 is not deformed, until the elastic expansion rod 328 does not have any deformation at this time, and at this time the rotary rod one 3210 supports the inner support body one 329 on the inner wall of the workpiece;

[0105] Subsequently, as the sleeve 3216 continues to move axially close to the turntable 32, the elastic expansion rod 328 begins to deform, the rotating rod two 3212 drives the inner support two 3211 to expand outward along the radial guide groove two 323, the inner support two 3211 moves outward relative to the inner support one 329, and the inner support two 3211 is supported on the inner wall of the workpiece, at this time, the two ends of the inner support two 3211 are respectively inserted into the space between the two ends of the inner support one 329 and the end faces are in abutting state;

[0106] At this time, the sleeve 3216 continues to move axially close to the turntable 32, the slide pin 3215 continuously compresses the spring, and the T-shaped hook head 32181 of the elastic hook head 3218 moves to the sink groove 3214 along the guide groove, and is inserted into the sink groove 3214 under the action of the elastic body 32182, the sleeve 3216 and the slide pin 3215 are locked;

[0107] When the inner support one 329 and the inner support two 3211 are supported on the inner wall of the workpiece, the flexible gasket acts on the position of the inner channel of the workpiece and protects the inner channel of the workpiece, and avoids the axial deviation of the workpiece during grinding.

[0108] Workpiece outer diameter grinding:

[0109] The grinding motor 10 drives the grinding wheel 20 to rotate at high speed, the position of the grinding wheel 20 and the workpiece fixing mechanism is relatively adjustable, the grinding wheel 20 grinds the workpiece outer diameter to the size that meets the design size, and the workpiece is removed.

[0110] The specific steps of removing the workpiece are as follows:

[0111] By moving the action block 3221 to the side away from the turntable 32, and extruding the elastic body 32182 of the T-shaped hook head 32181 through the pulling rope 3219, until the T-shaped hook head 32181 is separated from the sink groove 3214, when completely separated, the spring in the center rod 321 will move the slide pin 3215 outward away from the turntable 32, the sleeve 3216 moves outward together with the slide pin 3215, until it returns to the initial position, and the main disc body 326, the reset disc 324 and the vice disc body 327 will respectively restore the inner support one 329 and the inner support two 3211 to the initial position under the action of the elastic expansion rod 328 and the spring.

[0112] The workpiece loading steps are as follows:

[0113] The three-dimensional position of the clamping assembly is adjusted to the side of the taking and placing rack 80 by controlling the X-axis linear module 40, the Y-axis linear module 50 and the Z-axis linear module 70 to be attached to the end face of the workpiece, the electromagnet 81 is powered to adsorb and fix the workpiece, and then the three-dimensional position of the clamping assembly is adjusted to the outside of the inner support body 329 and the inner support body 3211 by controlling the X-axis linear module 40, the Y-axis linear module 50 and the Z-axis linear module 70, and the end face is attached to the rotary disc 32, and the electromagnet 81 is powered off to make the workpiece fall on the outside of the inner support body 329 and the inner support body 3211.

[0114] When the workpiece is taken off, the three-dimensional position of the clamping assembly is adjusted to the end face of the workpiece by controlling the X-axis linear module 40, the Y-axis linear module 50 and the Z-axis linear module 70 to be attached to the taking and placing rack 80, the electromagnet 81 and the electromagnet 82 are powered on at the same time, the electromagnet 81 magnetically attracts and fixes the workpiece, the electromagnet 82 adsorbs the clamping piece 83, the clamping piece 83 extrudes the spring in the axial hole 84, and simultaneously moves circumferentially along the side guide groove 821 through the ear plate 831, the clamping piece 83 rotates, and in the rotating process, the clamping piece 83 is blocked by the action block 3221 and is pulled outward, the sleeve 3216 and the slide pin 3215 are unlocked, the workpiece is completely fixed and unlocked, and the rotating process is 180 degrees, and in the rotating process, the clamping piece 83 is automatically separated from the action block 3221, and the clamping piece 83 is reset to the initial position under the action of the spring, after the workpiece is taken off, the electromagnet 82 is powered off, and the clamping piece 83 is reset;

[0115] The clamping piece 83 rotates along the side guide groove 821 under the adsorption of the electromagnet 82, the rotating process blocks the action block 3221 and pulls it outward by a small distance, so that the elastic hook 3218 is separated from the sink groove 3214, and the locking state of the slide pin 3215 is released;

[0116] The three-dimensional position of the clamping assembly is adjusted to the position of the workpiece in the discharging position by controlling the X-axis linear module 40, the Y-axis linear module 50 and the Z-axis linear module 70, and the electromagnet 81 is powered off to release the workpiece.

[0117] The full-automatic composite grinding machining equipment of the application solves the basic problem of the dresser, and aims at the problem that the existing workpiece is basically clamped and fixed from the inside when machining the outer circle channel, but when clamping and fixing the workpiece with thin thickness, the force cannot be too large or too small to affect the machining precision. The application adopts full circumferential clamping and fixing from the inside, the supporting surface is large and the pressing force is consistent, so that the indentation and workpiece deformation problems do not occur, the stress is uniform during the grinding machining process, and the machining precision is ensured. On the basis of clamping and fixing the workpiece by the full circumferential clamping and fixing mechanism, the inventor designs a magnetic type workpiece feeding and discharging assembly which is used in cooperation with the full circumferential clamping and fixing mechanism of the workpiece, can realize the opening or release of the full circumferential clamping action of the workpiece and automatic feeding and discharging, and can ensure the machining precision and efficiency.

[0118] The above is only the preferred embodiment of the application, but the protection scope of the application is not limited to this. The substitution can be the substitution of part of the structure, device, method step, or the complete technical solution. According to the technical solution and the inventive concept of the application, equivalent substitution or change should be covered in the protection scope of the application.

Claims

1. A grinding wheel dresser, characterized in that: include: A door-shaped frame (10) is provided on the top of the door-shaped frame (10), a swing arm (12) is provided on the output end of the servo motor (11), the servo motor (11) adjusts the deflection angle of the swing arm (12), the swing arm (12) is located in the door-shaped frame (10), and a servo motor (13) and a movable frame (14) are provided on the swing arm (12), the servo motor (13) drives the movable frame (14) to move along the length direction of the swing arm (12), a dressing piece (15) and a driver (16) for driving the dressing piece (15) to rotate are provided on the bottom of the movable frame (14), and the dressing piece (15) is used for online dressing of the working surface of the grinding wheel; A cross-shaped slide is located on one side of the grinding wheel and the top is used to install a door frame. The cross-shaped slide controls the dressing member (15) to move in two horizontal and vertical directions; A scale bar (141) is mounted on the movable frame (14), and a scale angle code (121) is provided on the swing arm (12), and the scale angle code (121) is used to align with the corresponding scale on the scale bar (141); The cross-shaped slide consists of an X-axis slide assembly and a Y-axis slide assembly; The X-axis slide assembly and the Y-axis slide assembly each include an upper slide (101), a lower fixed platform (102), and a drive shield (103). The drive shield (103) is fixedly mounted on one end of the lower fixed platform (102). The upper slide (101) is slidably mounted on the lower fixed platform (102). Both sides of the lower fixed platform (102) are provided with a water retaining groove (1021). The X-axis slide assembly and the Y-axis slide assembly also include: An extension plate (104) is mounted on one end of the lower fixed platform (102), and a water retaining groove (1041) is provided on the side thereof; The second extension plate (105) is installed at the other end of the lower fixed platform (102), and a second water retaining groove (1051) is provided on the side thereof. The driving protective cover (103) is installed on the second extension plate (105); The side baffles (106) are installed on two side portions of the upper slide (101), and a baffle (1061) extending inward is provided near the bottom of the side baffles (106), and the baffle (1061) is adapted to the first water retaining groove (1041), the second water retaining groove (1051), and the third water retaining groove (1021); An end sealing cover (107) is installed on an end of the upper slide (101) away from the driving protective cover (103), and a wiper plate (1071) is installed at the bottom, and the wiper plate (1071) contacts the upper surface of the extension plate (104); End sealing cover 2 (108), end sealing cover 2 (108) is installed on one end of the upper slide (101) close to the driving protective cover (103), and a wiper plate 2 (1081) is installed at the bottom, and the wiper plate 2 (1081) contacts the outer surface of the driving protective cover (103); The baffle (1061) is arranged obliquely upward, and an airflow compression area is formed on the upper surface of the baffle (1061) and the inner upper wall of the water retaining groove. A high-pressure blowing component is installed on the side baffle (106), and the high-pressure blowing component is used to blow air to the connection between the baffle (1061) and the side baffle (106) to the airflow compression area. A waterproof rubber strip (1062) is arranged near the end position on the upper surface of the baffle (1061). The waterproof rubber strip (1062) is a thin sheet structure and the free end gradually deviates from the side baffle (106) and gradually approaches the inner upper wall of the water retaining groove.

2. A grinding wheel dresser according to claim 1, characterized in that: The high-pressure blowing assembly comprises an external pipe joint (1064) mounted on the side baffle (106) and a blowing strip (1063) mounted on the inner wall of the side baffle (106); an air-uniform cavity communicating with the external pipe joint (1064) is provided in the blowing strip (1063); a high-pressure air hole (1065) is provided at the bottom of the air-uniform cavity; A guide body (1066) is provided at the junction of the baffle (1061) and the side baffle (106), and the guide body (1066) is used to divert the high-pressure gas from the high-pressure gas hole (1065) to the area between the baffle (1061) and the water retaining groove; When the upper sliding platform (101) moves relative to the lower fixed platform (102), high-pressure gas is blown through the high-pressure air hole (1065) to deflect the top of the waterproof rubber strip (1062) outward and separate it from the inner upper wall of the water retaining groove; When the upper sliding platform (101) is stationary relative to the lower fixed platform (102), the high-pressure gas is not blown, and the top of the waterproof strip (1062) is attached to the inner upper wall of the water retaining groove to form a waterproof structure.

3. The grinding wheel dresser according to claim 1, characterized in that: An extended upper plate (1072) is provided on the top of the end seal cover (107), and the extended upper plate (1072) is fixed to one end of the upper slide (101) by bolts. The upper slide (101) is provided with an end concave structure (1012) for installing the extended upper plate (1072); An extended upper plate 2 (1082) is provided at the top of one end of the end seal cover 2 (108), and the extended upper plate 2 (1082) is fixed to one end of the upper slide (101) by bolts. The upper slide (101) is provided with an end concave structure 2 (1011) for installing the extended upper plate 2 (1082). A drive protective cover notch (1083) is provided at the other end of the end seal cover 2 (108), and the wiper plate 2 (1081) is fixedly installed at the drive protective cover notch (1083).

4. The grinding wheel dresser according to claim 1, characterized in that: The retaining bars (1061) and the third water retaining groove (1021) are both provided with at least two groups, and are arranged in an upper and lower manner; The end of the side baffle (106) is provided with an inner sunken area 1 and an inner sunken area 2, the inner sunken area 1 is used for installing the end seal cover 1 (107), and the inner sunken area 2 is used for installing the end seal cover 2 (108); Waterproof sheets are installed between the inner sinking area 1 and the end sealing cover 1 (107), and between the inner sinking area 2 and the end sealing cover 2 (108); The extension plate 1 (104) comprises a mounting vertical plate 1 (1042), a horizontal support plate 1 (1044) and a reinforcement side plate (1043); the mounting vertical plate 1 (1042) is fixedly mounted on the lower fixed platform (102); the horizontal support plate 1 (1044) is arranged on the top of the mounting vertical plate 1 (1042); the reinforcement side plate (1043) is arranged between the horizontal support plate 1 (1044) and the mounting vertical plate 1 (1042) to enhance the structural strength; and the water retaining groove 1 (1041) is arranged on the reinforcement side plate (1043); The second extension plate (105) includes a second installation vertical plate (1054), a second horizontal support plate (1052), and an extension lower plate (1053). The second installation vertical plate (1054) is fixed on the lower fixed platform (102). The second horizontal support plate (1052) is arranged at the bottom of the second installation vertical plate (1054). The extension lower plate (1053) is provided with two groups of water retaining grooves (1051) respectively installed on both sides of the lower surface of the second horizontal support plate (1052) and arranged parallel to the second horizontal support plate (1052). The second water retaining groove (1051) is provided on the side opposite to the extension lower plate (1053). The side opposite to the extension lower plate (1053) is provided with a fourth water retaining groove (10531). Both side ends of the driving protective cover (103) are provided with extension strips (1031), and the outer side of the extension strips (1031) is installed with a horizontal mounting plate (1032) and a water baffle (1033), the water baffle (1033) is located below the horizontal mounting plate (1032) and one end of the water baffle (1033) extends to the outer side of the driving protective cover (103), the horizontal mounting plate (1032) is fixed on the second horizontal support plate (1052), and the water baffle (1033) is installed in the fourth water baffle groove (10531) and a waterproof strip is installed between the two.

5. A fully automatic composite grinding equipment, characterized in that: The invention comprises a workpiece fixing mechanism, a grinding system and a dresser as claimed in any one of claims 1 to 4, wherein the workpiece fixing mechanism and the dresser are respectively located on both sides of the grinding system, and the grinding system is used for grinding the surface of the workpiece.

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