Gantry type intelligent milling and grinding all-in-one machine

Abstract

The gantry type intelligent milling and grinding all-in-one machine comprises a magnetic disk arranged on an X-axis lead screw transmission mechanism, a base assembly arranged below the X-axis lead screw transmission mechanism, a portal frame arranged on the base assembly, a grinding mechanism and a milling mechanism, wherein the grinding mechanism and the milling mechanism are respectively arranged on the portal frame; the base assembly comprises reinforcing ribs arranged on the two sides of the base respectively. The high-speed grinding machine is stable in operation, and does not vibrate even when a workpiece is ground at a high speed, so that the machining precision of the workpiece and the smoothness of the ground workpiece are not influenced, the smoothness of the surface of the workpiece ground by the high-speed grinding machine is high, and the service life of the workpiece is prolonged. The grinding spindle has the advantages of being high in grinding efficiency, high in grinding precision and good in grinding effect, and the problems that a grinding wheel with the width larger than 100 mm cannot be installed on a grinding spindle in traditional milling and grinding equipment due to insufficient rigidity, and two or more Z-axis machine heads are not suitable for being installed on a base in a traditional gantry type machine tool due to insufficient rigidity are solved.

Description

Technical Field

[0001] The utility model relates to the field of integrated milling and grinding equipment, in particular to a gantry type intelligent integrated milling and grinding machine. Background Art

[0002] In traditional milling and grinding equipment, small gantry bases with a processing length of less than 2000mm generally adopt a cross-shaped structural design. Due to its insufficient rigidity, the base of this structure is only suitable for installing a single Z-axis head (i.e., a single grinding head or a single milling head), and is not suitable for installing more than two Z-axis heads, which makes it have large limitations in use and poor versatility. At the same time, the grinding spindles in the milling and grinding equipment on the market are only suitable for installing grinding wheels with a width of 50-100mm due to insufficient structural rigidity and the fact that the grinding wheel is usually fixedly installed on the end of the grinding spindle using a flange of a conventional structure, and the grinding wheel lacks a static balance adjustment structure, which makes it only suitable for installing grinding wheels with a width of 50-100mm, and it is impossible to install grinding wheels with a width greater than 100mm. When it is installed with a grinding wheel with a width greater than 100mm, it cannot run smoothly, which affects the grinding accuracy of the milling and grinding equipment and has an adverse effect on the finish of the ground workpiece, resulting in a low yield rate of the workpiece, which cannot meet the requirements of large-scale batch production and high-precision production of enterprises. In addition, the spindle box of the milling mechanism in traditional milling and grinding equipment generally requires more than two sets of gear sets to drive the milling spindle to work. The more than two sets of gear sets make it have problems such as complex structure, high production cost and high failure rate. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a gantry-type intelligent milling and grinding integrated machine.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The gantry-type intelligent milling and grinding machine comprises an X-axis screw transmission mechanism, a magnetic disk and a gantry frame, wherein the magnetic disk is mounted on the X-axis screw transmission mechanism, and further comprises a base assembly, which is arranged below the X-axis screw transmission mechanism and is used to improve the overall rigidity of the equipment and make it particularly suitable for mounting more than two machine heads;

[0006] A gantry, disposed on the base assembly;

[0007] The grinding mechanism is arranged on the front side of the upper part of the gantry. The grinding mechanism includes a first Z-axis screw transmission mechanism, a grinding spindle servo motor, a grinding spindle assembly, a synchronous wheel assembly and a grinding wheel assembly. The grinding spindle assembly and the grinding spindle servo motor are arranged on the first Z-axis screw transmission mechanism in a parallel distribution manner. The grinding spindle servo motor is connected and installed with one end of the grinding spindle assembly through the synchronous wheel assembly, and the grinding wheel assembly is installed on the other end of the grinding spindle assembly. The grinding spindle assembly can improve the rigidity of the grinding mechanism to be suitable for installing grinding wheel assemblies of different specifications and perform static balancing on the grinding wheel assembly before installation to ensure high grinding accuracy.

[0008] A milling mechanism capable of accurately controlling the action of milling the workpiece is also provided on the front side of the upper portion of the gantry, and the milling mechanism is arranged adjacent to the grinding mechanism.

[0009] Preferably, the base assembly comprises a base, and two sides of the base are respectively provided with reinforcing ribs for reinforcing the rigidity thereof, the reinforcing ribs are arranged in two or more layers, and the base and the reinforcing ribs are integrally formed;

[0010] The reinforcing ribs are arranged in a wing shape.

[0011] By adopting the above technical solution, two or more layers of reinforcing ribs are respectively provided on both sides of the base, and the reinforcing ribs are arranged in a wing shape, so as to greatly strengthen the rigidity of the base as a whole, making it suitable for machine tools that simultaneously install more than two Z-axis heads, thereby solving the problem that the base of the small gantry machine tool of the traditional milling equipment cannot be suitable for installing more than two Z-axis heads due to its insufficient rigidity. In addition, the modification of the above structure of the base makes it suitable not only for small gantry machine tools, but also for large gantry machine tools, making it have the advantages of strong versatility and flexibility of use.

[0012] Preferably, the grinding spindle assembly includes a first spindle box, in which a first spindle is arranged; the first spindle includes a spindle axis, on which one or more angular contact bearings are mounted, and a spindle sleeve is provided to fix the one or more angular contact bearings on the spindle axis.

[0013] Preferably, the grinding wheel assembly includes a grinding wheel, a grinding wheel fixing flange installed on one side of the grinding wheel, and a grinding wheel movable flange installed on the other side of the grinding wheel and assembled with the grinding wheel fixing flange; the grinding wheel movable flange fixes the grinding wheel on one end of the grinding spindle assembly through a locking nut; and a grinding wheel static balancing group for adjusting the static balance of the grinding wheel is respectively installed on the grinding wheel fixing flange and the grinding wheel movable flange.

[0014] Preferably, the grinding wheel assemblies of different specifications refer to grinding wheels with a width less than or equal to 100 mm and greater than 100 mm.

[0015] Preferably, each grinding wheel static balancing group includes adjustment block mounting grooves respectively arranged on the sides of the grinding wheel fixed flange and the grinding wheel movable flange, and each adjustment block mounting groove is installed with zero or more balance adjustment blocks, and each balance adjustment block is fixed to the adjustment block mounting groove by screws.

[0016] By adopting the above technical solution, the grinding wheel is first assembled with the grinding wheel fixed flange, and then assembled with the grinding wheel movable flange. By using the grinding wheel fixed flange in conjunction with the grinding wheel movable flange, the grinding wheel can be fixedly installed on one end of the first spindle through the locking nut in the grinding wheel movable flange, thereby making it suitable for installing grinding wheels of different widths. Before the grinding wheels of different widths are installed on one end of the first spindle, the grinding wheels of different widths can be horizontally balanced by using a balance frame and a level gauge. After the balance frame is balanced, the static balance of the grinding wheel can be tested by the balance frame. It can be selected according to the test results whether it is necessary to install the balance adjustment block on the adjustment block installation groove in the grinding wheel static balance group and where to install the balance adjustment block in the adjustment block installation groove in the grinding wheel static balance group, so as to make the balance of the grinding wheel good. The method of testing the static balance of the grinding wheel by the balance frame is already known common knowledge and will not be explained in detail here. The structural design of the grinding wheel static balance group can keep grinding wheels of different widths in good balance, and can still run smoothly even when the grinding wheels of different widths rotate at high speed, so as to avoid affecting the grinding accuracy of the workpiece and affecting the surface finish of the workpiece. At the same time, it also increases the rigidity of the first spindle as a whole by installing more than one angular contact bearing on the spindle axis of the first spindle and setting the outer diameter of the first spindle to be greater than or equal to 180mm. The design of the above structure makes one end of the first spindle not only suitable for installing grinding wheels with a width of less than or equal to 100mm, but also suitable for installing grinding wheels with a width of greater than 100mm, so as to solve the problem that the grinding spindle in the traditional milling and grinding equipment cannot install grinding wheels with a width of greater than 100mm due to insufficient rigidity and the lack of static balance adjustment structure of the grinding wheel.

[0017] Preferably, the milling mechanism comprises a second Z-axis screw transmission mechanism, a second spindle box is provided on the second Z-axis screw transmission mechanism, a gear set and a second spindle are provided in the second spindle box, and the second spindle extends outside the second spindle box, a milling spindle servo motor is provided on one side of the second spindle box, the milling spindle servo motor is connected and installed with the second spindle through a gear set, a milling head cutter is installed at the output end of the second spindle, and a gear oil lubrication pump capable of supplying lubricating oil to the movement of the gear set and the second spindle is provided on the other end of the second spindle;

[0018] The gear set comprises a first gear mounted on the output shaft of the milling spindle servo motor and a second gear mounted on one end of the second spindle close to the milling spindle servo motor, and the first gear and the second gear perform meshing motion.

[0019] By adopting the above-mentioned technical scheme, only one gear set consisting of a first gear and a second gear is provided in the second spindle box, and the gear ratio thereof reaches 1:4, and the gear set is directly driven by the milling spindle servo motor to drive the second spindle to rotate, so that the production efficiency is higher and the failure rate is lower, and the structure is simplified and the production cost is reduced. It effectively solves the problem that the spindle box body of the milling mechanism in the traditional milling and grinding equipment needs to be installed with more than two gear sets to drive the second spindle to work, resulting in a complex structure, high production cost and high failure rate.

[0020] Preferably, a grinding wheel repair pen and a first tool setting instrument are respectively provided on the same side of the magnetic disk, and the grinding wheel repair pen and the first tool setting instrument are staggered.

[0021] By adopting the above technical solution, the grinding wheel repair pen and the first tool setting instrument can move along with the magnetic disk and under the drive of the X-axis screw transmission mechanism to perform X-axis reset. When the first tool setting instrument moves and touches the grinding wheel, it can automatically measure its diameter, thickness and other parameters, and feed back the test data to the system. When the grinding wheel repair pen moves and touches the grinding wheel, it can automatically dress the grinding wheel. The working principle of the grinding wheel repair pen is well known and will not be explained in detail here.

[0022] Preferably, a grinding measurement unit is provided at the front side of the grinding mechanism, and a milling measurement unit is provided at the front side of the milling mechanism; a grinding counterweight unit is provided at the rear side of the grinding mechanism, and a milling counterweight unit is provided at the front side of the milling mechanism.

[0023] Specifically, the grinding measurement unit is installed on the first spindle box in the grinding mechanism, and the milling measurement unit is installed on the second spindle box in the milling mechanism. The grinding counterweight unit and the milling counterweight unit are both counterweight cylinders, but this is not limited to this. The milling measurement unit and the grinding measurement unit respectively include a cylinder, a signal sensor is provided on the cylinder, one end of the cylinder is connected to a cylinder sliding rod, and one end of the cylinder sliding rod is connected and installed with a stainless steel demagnetization rod. In another embodiment, the milling measurement unit and the grinding measurement unit respectively include a slide rail, a connecting plate is provided on the slide rail, the connecting plate is connected and installed with the slide rail through a slider, a second tool setting instrument is installed at one end of the connecting plate, and a first screw module is provided on the back of the connecting plate. The specific structure and working principle of the first tool setting instrument and the second tool setting instrument are common knowledge and will not be explained in detail here; the first tool setting instrument and the second tool setting instrument can both adopt a high-precision automatic tool setting instrument with model BY-20-3, but this is not limited to this. The signal sensor can adopt a 24GHZ microwave radar sensor, but this is not limited to this.

[0024] By adopting the above technical solution, the grinding measurement unit and the milling measurement unit can drive the stainless steel demagnetizing rod or the second tool setting instrument to move downward through the lifting movement until it touches the surface of the workpiece to be processed. It automatically measures the travel signal of the stainless steel demagnetizing rod or the second tool setting instrument to the surface of the workpiece to be processed and feeds it back to the system, so as to provide measurement parameters for the system to calculate the height of the workpiece before grinding or milling, so as to realize the precise control of the size of the workpiece ground by the grinding wheel or the size of the workpiece milled by the milling head cutter, thereby ensuring the high precision of grinding and milling.

[0025] Preferably, the grinding mechanism and the milling mechanism are respectively mounted on the gantry via Y-axis screw transmission mechanisms connected thereto, or the grinding mechanism and the milling mechanism are jointly mounted on the gantry via a Y-axis screw transmission mechanism.

[0026] By adopting the above technical solution, the grinding mechanism and the milling mechanism can independently perform linear displacement movement in the Y direction under the drive of the Y-axis screw transmission mechanism connected thereto. In another embodiment, when the grinding mechanism and the milling mechanism are installed on the gantry through a Y-axis screw transmission mechanism, the grinding mechanism and the milling mechanism are jointly driven by the Y-axis screw transmission mechanism to perform linear displacement movement in the Y direction, so that it can meet different processing requirements.

[0027] Preferably, a distribution box is provided at the rear side of the gantry, and a grinding spindle servo motor servo, a milling spindle servo motor servo, an X-axis servo motor servo, a Y-axis servo motor servo, a first Z-axis servo motor servo and a second Z-axis servo motor servo are provided in the distribution box in sequence.

[0028] As a preferred embodiment, a system is provided for signal connection with the grinding spindle servo motor servo, milling spindle servo motor servo, X-axis servo motor servo, Y-axis servo motor servo, first Z-axis servo motor servo, second Z-axis servo motor servo, grinding measurement unit, milling measurement unit and first tool setting instrument, etc. The system can adopt CNC control system or CNC numerical control machining center, but it is not limited thereto. CNC control system is a control system commonly used in grinding machines and milling machines, and its specific composition structure and working principle are common knowledge, which will not be explained in detail here.

[0029] Preferably, the X-axis screw transmission mechanism, the first Z-axis screw transmission mechanism, the second Z-axis screw transmission mechanism and the Y-axis screw transmission mechanism all include parallel distributed guide rails, a slide seat is slidably provided on each guide rail, each guide rail is fixedly connected to other components through the slide seat, and a screw assembly is provided between two guide wheels. The screw assembly includes a nut fixing seat, a screw rod is provided through the center of the nut fixing seat, and one end of the screw rod in each transmission mechanism is connected to a servo motor or a motor. The working principles of the X-axis screw transmission mechanism, the first Z-axis screw transmission mechanism, the second Z-axis screw transmission mechanism and the Y-axis screw transmission mechanism are common knowledge and will not be explained in detail here.

[0030] Preferably, the grinding spindle servo motor is signal-connected to the grinding spindle servo motor servo, the milling spindle servo motor is signal-connected to the milling spindle servo motor servo, the Y-axis drive motor in the Y-axis screw transmission mechanism is signal-connected to the Y-axis servo motor servo, the X-axis drive motor in the X-axis screw transmission mechanism is signal-connected to the X-axis servo motor servo, the first Z-axis drive motor in the first Z-axis screw transmission mechanism is signal-connected to the first Z-axis servo motor servo, and the second Z-axis drive motor in the second Z-axis screw transmission mechanism is signal-connected to the second Z-axis servo motor servo.

[0031] By adopting the above technical solution, when the grinding wheel rotates under the drive of the grinding spindle servo motor and the grinding wheel just contacts the surface of the workpiece to be processed, the torque change of the grinding spindle servo motor can be automatically fed back to the grinding spindle servo motor server, and the grinding spindle servo motor server is connected to the system by signal, so that after receiving the signal from the grinding spindle servo motor server, the system controls the grinding spindle servo motor to execute the command of automatic cutting, so that the grinding wheel can automatically perform the action of cutting and grinding, which not only realizes automatic cutting, but also ensures the high precision of the cutting processing of the workpiece by the grinding wheel. The cutting principle of the milling head cutter disc is the same as that of the grinding wheel, so that the milling head cutter disc can also automatically perform the action of cutting and milling, which not only realizes automatic cutting, but also ensures the high precision of the cutting processing of the workpiece by the milling head cutter disc.

[0032] Preferably, the synchronous wheel assembly comprises two synchronous wheels and a synchronous belt connecting the two synchronous wheels. The working principle of the synchronous wheel assembly is common knowledge and will not be explained in detail here.

[0033] It should be noted that the grinding wheel fixed flange and the grinding wheel movable flange are both functional descriptions of the flange. The grinding spindle servo motor and the milling spindle servo motor are respectively functional descriptions of the servo motor. The adjustment block mounting slot, the balance adjustment block and the gear oil lubrication pump are respectively functional descriptions of the mounting slot, the adjustment block and the oil pump. The grinding wheel dressing pen is the abbreviation of the grinding wheel dressing pen or the grinding wheel dresser. The milling head cutter disc refers to a tool or cutter disc that can perform milling processing on the workpiece. The grinding spindle servo motor servo, the milling spindle servo motor servo, the X-axis servo motor servo, the Y-axis servo motor servo, the first Z-axis servo motor servo and the second Z-axis servo motor servo are all functional descriptions of the servo.

[0034] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. It provides more than two layers of reinforcing ribs on both sides of the base in the base assembly, and the reinforcing ribs are integrally formed with the base. At the same time, it also provides the reinforcing ribs in a wing shape. The above design can greatly enhance the rigidity of the overall base, making it not only suitable for simultaneously installing more than two Z-axis heads on small gantry machine tools, but also suitable for large gantry machine tools, so as to solve the problem that the base of small gantry machine tools of traditional milling and grinding equipment cannot be installed with more than two Z-axis heads due to its insufficient rigidity.

[0035] 2. The structure of the grinding mechanism is designed to increase the outer diameter of the first spindle in the grinding mechanism to more than 180 mm and to install more than one angular contact bearing on the spindle axis of the first spindle, so as to greatly enhance the rigidity of the first spindle as a whole; at the same time, a grinding wheel static balancing group is provided on the grinding wheel fixed flange and the grinding wheel movable flange in the grinding wheel, respectively. When the grinding wheels of different widths are unbalanced before being installed on one end of the spindle axis of the first spindle, a balancing adjustment block can be installed in the adjustment block installation groove of the grinding wheel static balancing group at a position corresponding to the unbalance of the grinding wheel, so that the grinding wheels of different widths can maintain good balance after being adjusted by the grinding wheel static balancing group. The balance is then installed on one end of the spindle axis in the first spindle. The design of the above structure enables the first spindle to not only install a grinding wheel with a width less than or equal to 100mm, but also a grinding wheel with a width of more than 100mm (such as a width of 100mm, 125mm or 150mm...), and the grinding wheel with a width of more than 100mm can run smoothly even if it rotates at high speed, which will not affect the accuracy of the ground workpiece and the smoothness of the surface of the ground workpiece, thereby solving the problem that the grinding spindle in the traditional milling and grinding equipment cannot be installed with a grinding wheel with a width of more than 100mm due to insufficient rigidity and the lack of static balance adjustment structure of the grinding wheel.

[0036] 3. The structure of the milling mechanism is designed so that only one gear set is provided in the second spindle box of the milling mechanism, and the gear set is directly driven by the milling spindle servo motor, so that the production efficiency can be improved and the failure rate can be reduced, and the internal structure of the second spindle box is simplified, thereby achieving the purpose of reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] For ease of explanation, the present invention is described in detail with reference to the following preferred embodiments and accompanying drawings.

[0038] Figure 1 This is a stereoscopic diagram showing that the grinding mechanism and the milling mechanism of the gantry-type intelligent integrated milling and grinding machine of the utility model are driven together by a Y-axis screw transmission mechanism.

[0039] Figure 2 This is a stereoscopic diagram showing that the grinding mechanism and the milling mechanism of the gantry-type intelligent integrated milling and grinding machine of the utility model are respectively driven by the Y-axis screw transmission mechanism connected thereto.

[0040] Figure 3 These are three-dimensional views of the gantry-type intelligent integrated milling and grinding machine of the utility model from different directions.

[0041] Figure 4 It is a three-dimensional diagram of the base assembly of the gantry-type intelligent milling and grinding machine of the present invention.

[0042] Figure 5 It is a three-dimensional diagram of the cross-sectional structure of the grinding mechanism of the gantry-type intelligent milling and grinding machine of the utility model.

[0043] Figure 6 It is a cross-sectional structural stereogram of the assembly of the grinding wheel, the grinding wheel fixed flange and the grinding wheel movable flange of the gantry-type intelligent milling and grinding machine of the utility model.

[0044] Figure 7 It is a front view of the grinding wheel of the gantry-type intelligent milling and grinding machine of the utility model.

[0045] Figure 8 It is a cross-sectional structural diagram of the milling mechanism of the gantry-type intelligent milling and grinding machine of the utility model. DETAILED DESCRIPTION

[0046] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0048] Reference Figures 1 to 8 As shown, the gantry-type intelligent milling and grinding machine of the utility model comprises an X-axis screw transmission mechanism 1, a magnetic disk 2 and a gantry 3, wherein the magnetic disk 2 is mounted on the X-axis screw transmission mechanism 1; it also comprises a base assembly 4, which is arranged below the X-axis screw transmission mechanism 1, and is used to improve the overall rigidity of the equipment and make it particularly suitable for installing more than two machine heads; the gantry 3 is arranged on the base assembly 4; the grinding mechanism 5 is arranged on the front side of the upper part of the gantry 3, and the grinding mechanism 5 comprises a first Z-axis screw transmission mechanism 51, a grinding spindle servo motor 52, a grinding spindle assembly 53, a synchronous wheel assembly 54 and a grinding wheel assembly 55, and the grinding spindle assembly 53 and the grinding spindle servo motor 52 are provided. The servo motor 52 is arranged on the first Z-axis screw transmission mechanism 51 in a parallel distribution manner. The grinding spindle servo motor 52 is connected and installed with one end of the grinding spindle assembly 53 through the synchronous wheel assembly 54. The grinding wheel assembly 55 is installed on the other end of the grinding spindle assembly 53. The grinding spindle assembly 53 can improve the rigidity of the grinding mechanism 5 to be suitable for installing grinding wheel assemblies 55 of different widths and perform static balancing on the grinding wheel assembly 55 before installation to ensure high grinding accuracy; the front side of the upper part of the gantry 3 is also provided with a milling mechanism 6 that can accurately control its action when milling the workpiece, and the milling mechanism 6 is arranged adjacent to the grinding mechanism 5.

[0049] In one embodiment, the base assembly 4 includes a base 41, and two sides of the base 41 are respectively provided with reinforcing ribs 42 for strengthening its rigidity. The reinforcing ribs 42 are arranged in two or more layers, and the base 41 and the reinforcing ribs 42 are integrally formed; the reinforcing ribs 42 are arranged in a wing shape.

[0050] In one embodiment, the grinding spindle assembly 53 includes a first spindle box 531, in which a first spindle 532 is arranged; the first spindle 532 includes a spindle axis 530, on which one or more angular contact bearings 534 are mounted, and a spindle sleeve 533 is provided to fix the one or more angular contact bearings 534 on the spindle axis 530.

[0051] In one embodiment, the grinding wheel assembly 55 includes a grinding wheel 551, a grinding wheel fixing flange 552 installed on one side of the grinding wheel 551, and a grinding wheel movable flange 553 installed on the other side of the grinding wheel 551 and assembled with the grinding wheel fixing flange 552; the grinding wheel movable flange 553 fixes the grinding wheel 551 on one end of the grinding spindle assembly 53 through a locking nut 554; the grinding wheel fixing flange 552 and the grinding wheel movable flange 553 are respectively installed with a grinding wheel static balance group for adjusting the static balance of the grinding wheel 551.

[0052] In one embodiment, each grinding wheel static balancing group includes adjustment block mounting grooves 54 respectively arranged on the sides of the grinding wheel fixed flange 552 and the grinding wheel movable flange 553, and each adjustment block mounting groove 54 is installed with zero or more balance adjustment blocks 50, and each balance adjustment block 50 is fixed to the adjustment block mounting groove 54 by screws.

[0053] In one embodiment, the milling mechanism 6 includes a second Z-axis screw transmission mechanism 61, and a second spindle box 62 is provided on the second Z-axis screw transmission mechanism 61. A gear set and a second spindle 63 are provided in the second spindle box 62, and the second spindle 63 extends outside the second spindle box 62. A milling spindle servo motor 64 is provided on one side of the second spindle box 62. The milling spindle servo motor 64 is connected and installed with the second spindle 63 through a gear set. A milling head cutter 65 is installed at the output end of the second spindle 63, and a gear oil lubrication pump 68 is provided on the other end of the second spindle 63.

[0054] In one embodiment, the gear set includes a first gear 66 mounted on the output shaft of the milling spindle servo motor 64, and a second gear 67 mounted on one end of the second spindle 63 close to the milling spindle servo motor 64, and the first gear 66 and the second gear 67 are meshed.

[0055] In one embodiment, the outer diameter of the first main shaft 532 is set to be greater than 180 mm.

[0056] In one embodiment, a grinding measurement unit 7 is provided at the front side of the grinding mechanism 5, and a milling measurement unit 8 is provided at the front side of the milling mechanism 6; a grinding counterweight unit 9 is provided at the rear side of the grinding mechanism 5, and a milling counterweight unit 10 is provided at the front side of the milling mechanism 6. The grinding counterweight unit 9 and the milling counterweight unit 10 may both use a counterweight cylinder, but are not limited thereto.

[0057] In one embodiment, a grinding wheel trimmer 11 and a first tool setting instrument 12 are respectively disposed on the same side of the magnetic disk 2 , and the grinding wheel trimmer 11 and the first tool setting instrument 12 are staggered.

[0058] In one embodiment, the grinding mechanism 5 and the milling mechanism 6 are respectively installed on the gantry 3 through the Y-axis screw transmission mechanism 13 connected thereto.

[0059] In another embodiment, the grinding mechanism 5 and the milling mechanism 6 are installed on the gantry 3 together through a Y-axis screw transmission mechanism 13 .

[0060] In one embodiment, a distribution box 14 is provided at the rear side of the gantry 3, and a grinding spindle servo motor servo ...

[0061] In one of the embodiments, the structural design principle and working principle of the gantry-type intelligent milling and grinding machine are as follows: the workpiece to be processed is first placed on the disk 2 and fixed by the magnetic attraction of the disk 2. The workpiece can be displaced to the bottom of the gantry 3 along with the disk 2 and driven by the X-axis screw transmission mechanism 1. Since the milling mechanism 6 and the grinding mechanism 5 can be displaced to the top of the workpiece to be processed respectively through the Y-axis screw transmission mechanism 13, when the milling mechanism 6 is displaced to the top of the workpiece to be processed through the Y-axis screw transmission mechanism 13, then, the milling mechanism 6 is driven by the second Z-axis screw transmission mechanism 61 and descends to the upper surface of the workpiece, and when the milling head cutter 65 in the milling mechanism 6 rotates driven by the milling spindle servo motor 64, the workpiece can be milled. The second spindle box 62 in the milling mechanism 6 is provided with only one gear set consisting of a first gear 66 and a second gear 67, and the gear set is directly driven by a milling spindle servo motor 64 to control the rotation of the second spindle 63. This design makes its production efficiency higher and the failure rate lower, simplifies the structure and reduces the production cost.

[0062] When the workpiece is milled, the grinding mechanism 5 is displaced to the top of the workpiece to be processed through the Y-axis screw transmission mechanism 13. Then, the grinding mechanism 5 is driven by the first Z-axis screw transmission mechanism 51 to descend to the upper surface of the workpiece. When the grinding wheel 551 in the grinding mechanism 5 rotates under the drive of the grinding spindle servo motor 52, the workpiece can be ground. A grinding wheel fixing flange 552 is provided on one side of the grinding wheel 551 and a grinding wheel movable flange 553 is provided on the other side of the grinding wheel 551. The grinding wheel 551 is first assembled with the grinding wheel fixing flange 552 and then assembled with the grinding wheel movable flange 553. The grinding wheel fixing flange 552 and the grinding wheel movable flange 553 are used in combination to make it suitable for installation with grinding wheels 551 of different widths. Then, the grinding wheel movable flange 553 can lock the grinding wheel 551 on one end of the spindle axis 530 in the first spindle 532 of the grinding mechanism 5 through a locking nut 554. The outer diameter of the first spindle 532 is increased to more than 180 mm and one or more angular contact bearings 534 are mounted on the spindle axis 530 of the first spindle 532, so as to greatly increase the rigidity of the first spindle 532 as a whole. At the same time, a grinding wheel static balancing group is respectively provided on the grinding wheel fixed flange 552 and the grinding wheel movable flange 553 of the grinding wheel 551, so that when the grinding wheels 551 of different widths are unbalanced, the balancing adjustment block 50 is installed in the adjustment block installation groove 54 of the grinding wheel static balancing group at the unbalanced position corresponding to the grinding wheel 551 to maintain good balance. Then, the grinding wheel 551 is fixed to the grinding wheel 552 and the grinding wheel movable flange 553. The grinding wheel 551 after static balancing adjustment by the static balancing group is installed on one end of the spindle axis 530 in the first spindle 532, so that the one end of the spindle axis 530 in the first spindle 532 of the grinding mechanism 5 can not only be installed with a grinding wheel 551 with a width less than or equal to 100 mm, but also can be installed with a grinding wheel 551 with a width of more than 100 mm (such as a width of 100 mm, 125 mm or 150 mm...), thereby solving the problem that the grinding spindle in the traditional milling and grinding equipment cannot be installed with a grinding wheel with a width of more than 100 mm due to insufficient rigidity and the lack of static balancing adjustment structure of the grinding wheel.

[0063] It also provides two or more layers of reinforcing ribs 42 on both sides of the base 41, and the reinforcing ribs 42 are arranged in a wing shape to greatly strengthen the rigidity of the base 41 as a whole, so that it is suitable for installing more than two Z-axis heads at the same time, thereby solving the problem that the base 41 in the small gantry machine tool of the traditional milling equipment is only suitable for installing a single Z-axis head due to its insufficient rigidity. In addition, the modification of the above structure of the base 41 makes it suitable not only for small gantry machine tools, but also for large gantry machine tools, making it have the advantages of strong versatility and flexibility of use.

[0064] Its overall structural design has stable operation. It will not generate vibration even when performing high-speed grinding on the workpiece, so that it will not affect the processing accuracy of the machine tool and will not affect the smoothness of the ground workpiece. The workpiece ground by it has high surface finish and good product quality. It has the advantages of high grinding efficiency, high grinding accuracy, good grinding effect, high yield rate and strong rigidity.

[0065] The above embodiment is only an example of the present invention and is not intended to limit the implementation and scope of rights of the present invention. Any technical solution that is identical or equivalent to the content described in the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A gantry-type intelligent milling and grinding machine, comprising an X-axis screw drive mechanism, a magnetic disk and a gantry, wherein the magnetic disk is mounted on the X-axis screw drive mechanism, and is characterized in that: It also includes a base assembly, which is arranged below the X-axis screw drive mechanism and is used to improve the overall rigidity of the equipment and make it particularly suitable for installing more than two machine heads; A gantry, disposed on the base assembly; The grinding mechanism is arranged at the front side of the upper part of the gantry, and the grinding mechanism includes a first Z-axis screw transmission mechanism, a grinding spindle servo motor, a grinding spindle assembly, a synchronous wheel assembly and a grinding wheel assembly. The grinding spindle assembly and the grinding spindle servo motor are arranged on the first Z-axis screw transmission mechanism in a parallel distribution manner. The grinding spindle servo motor is connected and installed with one end of the grinding spindle assembly through the synchronous wheel assembly, and the grinding wheel assembly is installed on the other end of the grinding spindle assembly. The grinding spindle assembly can improve the rigidity of the grinding mechanism to be suitable for installing grinding wheel assemblies of different specifications, and the grinding wheel assembly can be statically balanced before installation to ensure high grinding accuracy. A milling mechanism capable of accurately controlling the action of milling the workpiece is also provided on the front side of the upper portion of the gantry, and the milling mechanism is arranged adjacent to the grinding mechanism.

2. The gantry-type intelligent milling and grinding machine according to claim 1 is characterized in that: The base assembly includes a base, and two sides of the base are respectively provided with reinforcing ribs for strengthening the rigidity thereof, the reinforcing ribs are arranged in two or more layers, and the base and the reinforcing ribs are integrally formed; The reinforcing ribs are arranged in a wing shape.

3. The gantry-type intelligent milling and grinding machine according to claim 1 is characterized in that: The grinding spindle assembly comprises a first spindle box, in which a first spindle is arranged; the first spindle comprises a spindle axis, on which one or more angular contact bearings are sleeved, and a spindle sleeve is arranged to fix the one or more angular contact bearings on the spindle axis.

4. The gantry-type intelligent milling and grinding machine according to claim 1, characterized in that: The grinding wheel assembly comprises a grinding wheel, a grinding wheel fixing flange installed on one side of the grinding wheel, and a grinding wheel movable flange installed on the other side of the grinding wheel and assembled with the grinding wheel fixing flange; the grinding wheel movable flange fixes the grinding wheel on one end of the grinding spindle assembly through a locking nut; a grinding wheel static balance group for adjusting the static balance of the grinding wheel is respectively installed on the grinding wheel fixing flange and the grinding wheel movable flange; Each grinding wheel static balance group includes adjustment block mounting grooves respectively arranged on the sides of the grinding wheel fixed flange and the grinding wheel movable flange. Zero or more balance adjustment blocks are installed in each adjustment block mounting groove, and each balance adjustment block is fixed to the adjustment block mounting groove by screws.

5. The gantry-type intelligent milling and grinding machine according to claim 1, characterized in that: The milling mechanism includes a second Z-axis screw transmission mechanism, the second Z-axis screw transmission mechanism is provided with a second spindle box, a gear set and a second spindle are provided in the second spindle box, and the second spindle extends out of the second spindle box, a milling spindle servo motor is provided on one side of the second spindle box, the milling spindle servo motor is connected and installed with the second spindle through a gear set, a milling head cutter is installed at the output end of the second spindle, and a gear oil lubrication pump is provided on the other end of the second spindle; The gear set comprises a first gear mounted on the output shaft of the milling spindle servo motor and a second gear mounted on one end of the second spindle close to the milling spindle servo motor, and the first gear and the second gear perform meshing motion.

6. The gantry-type intelligent milling and grinding machine according to claim 3, characterized in that: The outer diameter of the first spindle is set to be greater than 180 mm.

7. The gantry-type intelligent milling and grinding machine according to claim 1, characterized in that: A grinding measuring unit is arranged at the front side of the grinding mechanism, and a milling measuring unit is arranged at the front side of the milling mechanism; a grinding counterweight unit is arranged at the rear side of the grinding mechanism, and a milling counterweight unit is arranged at the front side of the milling mechanism.

8. The gantry-type intelligent milling and grinding machine according to claim 1, characterized in that: A grinding wheel repair pen and a first tool setting instrument are respectively arranged on the same side of the magnetic disk, and the grinding wheel repair pen and the first tool setting instrument are staggered.

9. The gantry-type intelligent milling and grinding machine according to claim 1, characterized in that: The grinding mechanism and the milling mechanism are respectively installed on the gantry through Y-axis screw transmission mechanisms connected thereto, or the grinding mechanism and the milling mechanism are installed on the gantry together through a Y-axis screw transmission mechanism.

10. The gantry-type intelligent milling and grinding machine according to claim 1, characterized in that: A distribution box is provided at the rear side of the gantry, and a grinding spindle servo motor servo, a milling spindle servo motor servo, an X-axis servo motor servo, a Y-axis servo motor servo, a first Z-axis servo motor servo and a second Z-axis servo motor servo are arranged in the distribution box in sequence.

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