High-precision vertical sliding block grinding machine

Abstract

The utility model discloses a high-precision vertical sliding block grinding machine which comprises a grinding machine main machine, the grinding machine main machine comprises a machine body base, an integrated gantry stand column assembly, a vertical shaft grinding head assembly and a workpiece table assembly, and the vertical shaft grinding head assembly is connected with the integrated gantry stand column assembly. The integrated gantry stand column assembly is erected on the lathe bed base, the workpiece table assembly is arranged on the lathe bed base, and the workpiece table assembly comprises a workpiece fixing table used for fixing a workpiece to be machined and a static pressure guide rail used for driving the workpiece fixing table to slide on the lathe bed base. According to the high-precision vertical sliding block grinding machine, the integrated gantry stand column assembly, the vertical shaft grinding head assembly and the workpiece table assembly comprising the static pressure guide rail are integrated, so that the performance of the grinding machine is optimized, and the high-precision vertical sliding block grinding machine has the advantages of being high in machining precision, good in structural stability and long in service life.

Description

TECHNICAL FIELD

[0001] The utility model belongs to numerical control grinding machine technical field especially relates to a vertical slide grinder. BACKGROUND

[0002] The domestic numerical control grinding machine field generally faces the problems of low machining precision, decreasing machine tool precision with machining time, and short service life.

[0003] On the one hand, the slide grinder on the market generally adopts a roller guide, which realizes guiding by rolling of the roller between the guide surfaces, and the roller is in linear contact with the guide, and the roller rolls in the raceway of the guide, and the rollers are uniformly separated by the retainer. However, the roller guide has rolling friction, although the friction coefficient is small, but it is mechanical contact, and the precision will inevitably decrease with the increase of the use time. In addition, the roller guide has high requirements for the working environment, and impurities such as dust and iron filings in the working environment can easily enter the gap between the roller and the guide, thereby affecting the performance and service life of the guide. In addition, the roller guide is sensitive to temperature changes, and the temperature changes will affect the dimensional accuracy and rolling performance of the roller guide. In the environment with high temperature, temperature compensation measures may need to be taken to ensure the accuracy and stability of the guide.

[0004] On the other hand, the slide grinder on the market generally adopts a beam column split structure, which divides the beam column into two or more parts and combines them together through a specific connection method. However, the beam column split structure has high assembly difficulty, and it is difficult to ensure the connection accuracy of each part during assembly because of the split structure. If the assembly is not proper, the precision indexes such as flatness and perpendicularity of the whole beam column may be reduced, thereby affecting the final machining precision. Secondly, the overall rigidity of the beam column split structure is insufficient, and compared with the integrated beam column, the overall rigidity of the split beam column is generally weak. When bearing a large cutting force, deformation is easy to occur, which affects the accuracy and stability of machining. In addition, the beam column split structure is easily affected by vibration. During the working process of the split structure, the connection part of the split beam column may be loose and worn due to vibration with the passage of time and the increase of use frequency, which further reduces the stability and reliability, and finally affects the machining precision.

[0005] Therefore, there is an urgent need for a numerical control grinding machine with good structural stability, high machining precision and long service life. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problems of overcoming the deficiencies and defects mentioned in the above background technology, and provides a high-precision vertical slide grinder with high machining precision, good structural stability and long service life.

[0007] To solve the above technical problems, the utility model provides a technical scheme that

[0008] A high-precision vertical slide grinder comprises a grinder main machine, the grinder main machine comprises a bed base, an integral gantry column assembly, a vertical shaft grinding head assembly for grinding a workpiece to be processed and a workpiece table assembly for fixing the workpiece to be processed, the vertical shaft grinding head assembly is connected with the integral gantry column assembly, the integral gantry column assembly is arranged on the bed base, the workpiece table assembly is arranged on the bed base, and the workpiece table assembly comprises a workpiece fixing table for fixing the workpiece to be processed and a static pressure guide rail for sliding the workpiece fixing table on the bed base.

[0009] The static pressure guide rail has the following advantages: high precision, no climbing phenomenon, small wear and long service life, high bearing capacity, self-adaptive capacity, good damping property and strong adaptability to working conditions.

[0010] Preferably, the integrated gantry column assembly comprises a beam column, a first linear guide rail pair and a first driving member for driving the vertical spindle grinding head assembly to move horizontally on the beam column, the beam column is an integrated inverted U-shaped structure, the first linear guide rail pair is horizontally arranged on the beam column, and the first driving member is fixedly arranged on the beam column and connected with the vertical spindle grinding head assembly. The structure of the first driving member can not be limited, such as an electric screw rod and the like, and the first linear guide rail pair can be arranged in multiple, such as two, arranged on the top surface and the side surface of the beam column.

[0011] The integrated gantry column structure has high structural stability: since it is an integrated structure without splicing or welding connection parts, it has better integrity and can uniformly bear loads from all directions, and is not prone to local structural weakness, fracture and the like when bearing large weight or complex stress, and can uniformly disperse the bearing load to the column, and is not prone to deformation or distortion when bearing large weight or complex stress. In addition, this structure has a high natural frequency, which can effectively resist the influence of vibration during machining and reduce the damage of vibration to machining precision and surface quality; good precision retention: due to the integrity of the structure, it is not prone to precision decline caused by part loosening or wear, and can still maintain high machining precision even after long-term use. At the same time, the beam column generates heat due to friction and cutting during work, and the beam column of the gantry structure has good heat dissipation conditions, uniform heat distribution and small thermal deformation, which is beneficial to maintaining the stability of machining precision. During long-term machining, this advantage can ensure that the equipment always maintains high machining precision; large machining range: the structural design of the gantry beam column enables it to span a large space, providing a large machining range for the equipment, which can meet the machining range of large workpieces and the machining needs of large workpieces. In the production process, the gantry structure provides a large space on the workbench, which facilitates the loading and unloading of workpieces and the observation of the machining process by the operator.

[0012] Preferably, the integrated gantry column assembly further comprises a first linear grating ruler for detecting, compensating and correcting the horizontal movement precision of the vertical spindle grinding head assembly, and the first linear grating ruler is horizontally arranged on the beam column. The first linear grating ruler can detect the horizontal movement precision of the vertical spindle grinding head assembly in real time, compensate and correct the movement trajectory through feedback information, thereby improving the machining precision and the stability of the grinding machine main machine.

[0013] In the high-precision vertical slide grinder, preferably, the vertical spindle head assembly comprises a vertical spindle ram, a vertical spindle slide, a Z-axis drive for driving the vertical spindle ram to move along the Z direction, and a grinding head for grinding the workpiece to be processed, the vertical spindle slide is horizontally slidably arranged on the integrated gantry column assembly, the vertical spindle ram is slidably arranged on the vertical spindle slide through a second linear guide rail pair, the Z-axis drive is installed above the vertical spindle ram, and the grinding head is arranged on the vertical spindle ram. The vertical spindle slide can slide horizontally along the integrated gantry column, and the vertical spindle ram can slide vertically along the vertical spindle slide. This design enables the grinding head to be accurately positioned and moved in multiple directions, thereby improving the flexibility and precision of processing. The structure of the Z-axis drive can not be limited, such as using a servo-driven screw rod guide or a linear motor. Two second linear guide rail pairs can be arranged on the vertical sides of the vertical spindle slide.

[0014] In the high-precision vertical slide grinder, preferably, the grinding head comprises a main spindle and a grinding wheel, and a secondary spindle and a grinding wheel, the main spindle and the grinding wheel are arranged in the inner cavity of the vertical spindle ram, and the secondary spindle and the grinding wheel are fixed to the lower side of the vertical spindle ram and located beside the exposed part of the main spindle and the grinding wheel. The speed of the main spindle can be controlled by the Z-axis drive and the numerical control system, so that the speed and position of the grinding wheel can be accurately controlled, thereby increasing the accuracy of grinding the workpiece.

[0015] In the high-precision vertical slide grinder, preferably, the vertical spindle head assembly further comprises a second linear grating ruler for detecting, compensating and correcting the vertical movement accuracy of the vertical spindle ram, and the second linear grating ruler is vertically arranged on the vertical spindle ram. The second linear grating ruler can detect the accuracy of the movement of the vertical spindle ram in real time, and the vertical movement accuracy of the vertical spindle ram can be compensated and corrected through accurate measurement data, thereby improving the grinding accuracy.

[0016] In the high-precision vertical slide grinder, preferably, the static pressure guide rail comprises a guide rail groove, a static pressure slide, an upper guide rail for pressing the static pressure slide to move in the guide rail groove, and a second drive for driving the workpiece fixing table to slide, the workpiece fixing table is arranged on the static pressure slide, the static pressure slide is slidably arranged in the guide rail groove and the upper guide rail, the second drive is connected with the workpiece fixing table, the static pressure slide is connected with the workpiece fixing table by a fastener, the static pressure slide is provided with an oil hole, and the oil hole is connected with an external hydraulic station through a hydraulic pipeline. Specifically, the oil hole on the static pressure slide and the inherent oil hole on the workpiece fixing table are connected, the inherent oil hole on the workpiece fixing table is connected with the hydraulic pipeline, and the hydraulic pipeline is connected with the hydraulic station, so that the entire system is provided with stable hydraulic oil from the hydraulic station.

[0017] Hydraulic oil flows out along the hydraulic slide wall, so that the groove in contact with it has hydraulic oil. An oil film is formed on the contact surface between the upper guide rail and the static pressure slide, and between the static pressure slide and the guide rail groove. The oil film bears the load of the moving parts, so that the moving parts are not in direct contact with the guide rail surface, reducing friction and wear, and improving movement accuracy and stability. At the same time, the design also has good damping characteristics, which can effectively absorb vibration during processing and improve processing quality. In addition, the use of hydraulic oil greatly reduces the wear of the upper guide rail, prolongs the service life of the equipment, effectively solves the technical problem of decreasing precision with processing time, and saves maintenance cost.

[0018] Preferably, in the high-precision vertical slide grinding machine, the workpiece fixing table comprises a workbench and an electromagnetic permanent magnet chuck for fixing the workpiece to be processed, and the electromagnetic permanent magnet chuck is arranged on the workbench. The workbench is also provided with a profiled grinding wheel shaft for periodic dressing of the grinding wheel. The electromagnetic permanent magnet chuck can quickly adsorb and fix the workpiece, reducing the clamping time and improving the processing efficiency. In addition, it can provide stable fixing force for the workpiece, ensuring that the workpiece will not displace during processing and ensuring the processing accuracy. Because the grinding wheel will be worn during long processing, the workbench is also provided with a profiled grinding wheel shaft, so that the dressing of the grinding wheel can be completed on the same workbench without the need to move the grinding wheel to other equipment, reducing the downtime and conversion time during processing.

[0019] Preferably, in the high-precision vertical slide grinding machine, a protection assembly is arranged outside the grinding machine main machine, a foot cup with height adjustment function is installed at the bottom of the grinding machine main machine, and a shock-absorbing iron pad is arranged below the foot cup. The protection assembly can be a protective cover, a baffle, etc., which can prevent splashing of grinding fluid and grinding dust from causing harm to the operator, and also avoid the operator from accidentally touching the workpiece being processed, reducing the risk of accidental injury. The foot cup with height adjustment function can adjust the horizontal height of the machine tool according to the unevenness of the ground or the installation requirements of the equipment, ensuring the stability and horizontality of the machine tool. The shock-absorbing iron pad below the foot cup can effectively absorb and reduce the vibration generated during the operation of the grinding machine, which helps to improve the stability of the grinding machine and improve the processing accuracy.

[0020] Preferably, the high-precision vertical slide grinder further comprises a hydraulic station for providing hydraulic oil to the hydrostatic guide rail in the grinder main machine, an oil cooler for cooling the hydraulic oil, a spindle cooler for cooling the grinder spindle, and a filter cooler for filtering the cutting waste liquid generated during the machining process, wherein the hydraulic station, the oil cooler, the spindle cooler and the filter cooler are connected to the grinder main machine. The integrated design of the hydraulic station, the oil cooler, the spindle cooler and the filter cooler provides a stable, efficient and environmentally friendly working environment for the high-precision vertical slide grinder. These systems not only ensure the stable operation of the hydraulic system and the temperature control of the hydraulic oil and the spindle, but also effectively manage the cutting waste liquid, reduce environmental pollution, prolong the service life of the equipment, improve the machining precision and production efficiency, and enhance the safety of operation and the convenience of equipment maintenance.

[0021] Compared with the prior art, the high-precision vertical slide grinder has the following advantages:

[0022] The high-precision vertical slide grinder of the present application adopts an integrated gantry column assembly to provide a solid support structure, ensuring the stability of the grinder. The hydrostatic guide rail ensures that the workpiece fixing table provides smooth and accurate movement, reducing friction and wear, prolonging the service life of the machine tool, and improving the machining precision. The integration of the integrated gantry column assembly, the vertical shaft grinding head assembly and the workpiece table assembly including the hydrostatic guide rail optimizes the performance of the grinder, with the advantages of high machining precision, good structural stability and long service life. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0024] Figure 1 It is the overall structure schematic diagram of the high-precision vertical slide grinder in the embodiment.

[0025] Figure 2 It is the structure schematic diagram of the grinder main machine in the embodiment.

[0026] Figure 3 It is the structure schematic diagram of the grinder main machine (excluding the outer protection assembly) in the embodiment.

[0027] Figure 4 It is Figure 3 The structure schematic diagram of the integrated gantry column assembly in the embodiment.

[0028] Figure 5 It isFigure 3 Structure diagram of vertical spindle grinding head assembly in the figure.

[0029] Figure 6 For Figure 3 Structure diagram of workpiece table assembly in the figure.

[0030] Legend

[0031] 1, grinding machine main machine; 2, hydraulic station; 3, oil cooler; 4, main shaft cooler; 5, filter cooler; 6, integral gantry column assembly; 7, vertical spindle grinding head assembly; 8, workpiece table assembly; 9, protection assembly; 10, cross beam column; 11, first driving piece; 12, first linear guide rail pair; 13, first linear grating ruler; 14, vertical spindle ram; 15, electric spindle and grinding wheel; 16, sub-shaft and grinding wheel; 17, second linear grating ruler; 18, second linear guide rail pair; 19, vertical grinding slide; 20, Z-axis driving piece; 21, shock-absorbing iron pad; 22, bed body base; 23, hydrostatic guide rail; 24, guide rail groove; 25, hydrostatic sliding block; 26, upper guide rail; 27, second driving piece; 28, workpiece fixing table; 29, workbench; 30, electromagnetic permanent magnet chuck; 31, shaped grinding wheel shaft. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present application, the following will be combined with the description and the preferred embodiments to make a more comprehensive and detailed description of the present application, but the protection scope of the present application is not limited to the following specific embodiments.

[0033] It should be particularly noted that when a certain element is described as "fixed to, fixedly connected to, connected to or communicated to" another element, it can be directly fixed, fixedly connected, connected or communicated to another element, or indirectly fixed, fixedly connected, connected or communicated to another element through other intermediate connecting elements.

[0034] Unless otherwise defined, all professional terms used in the following are the same as those commonly understood by those skilled in the art. The professional terms used in this paper are only for the purpose of describing specific embodiments and are not intended to limit the protection scope of the present application.

[0035] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present application can be purchased from the market or can be prepared by existing methods.

[0036] Embodiment:

[0037] For example Figures 1-6As shown, the high-precision vertical slide grinder of the embodiment comprises a grinder main machine 1, the grinder main machine 1 comprises a bed body base 22, an integral gantry column assembly 6, a vertical shaft grinding head assembly 7 for grinding a workpiece to be processed and a workpiece table assembly 8 for fixing the workpiece to be processed, the vertical shaft grinding head assembly 7 is connected with the integral gantry column assembly 6, the integral gantry column assembly 6 is arranged on the bed body base 22, the workpiece table assembly 8 is arranged on the bed body base 22, and the workpiece table assembly 8 comprises a workpiece fixing table 28 for fixing the workpiece to be processed and a static pressure guide rail 23 for sliding the workpiece fixing table 28 on the bed body base 22.

[0038] In the embodiment, the integral gantry column assembly 6 comprises a cross beam column 10, a first linear guide rail pair 12 and a first driving member 11 for driving the vertical shaft grinding head assembly 7 to move horizontally (sliding along the Y axis) on the cross beam column 10, the cross beam column 10 is an integrally formed inverted U-shaped structure, the first linear guide rail pair 12 is horizontally arranged on the cross beam column 10, the first linear guide rail pair 12 is provided with two first linear guide rail pairs 12 for better matching with the vertical shaft grinding head assembly 7, and the first driving member 11 is fixedly arranged on the cross beam column 10 and connected with the vertical shaft grinding head assembly 7.

[0039] In the embodiment, the integral gantry column assembly 6 further comprises a first linear grating ruler 13 for detecting, compensating and correcting the horizontal movement precision of the vertical shaft grinding head assembly 7, and the first linear grating ruler 13 is horizontally arranged on the cross beam column 10. When the first driving member 11 drives the vertical shaft grinding head assembly 7 to move on the cross beam column 10, the first linear grating ruler 13 detects the horizontal movement precision of the vertical shaft grinding head assembly 7 in real time, compensates and corrects the movement track through feedback information, and then processes the precision and stability of the grinder main machine 1.

[0040] In the embodiment, the vertical shaft grinding head assembly 7 comprises a vertical shaft ram 14, a vertical grinding slide 19, a Z-axis driving member 20 for driving the vertical shaft ram 14 to move along the Z direction and a grinding head for grinding the workpiece to be processed, the vertical grinding slide 19 is slidably arranged on the integral gantry column assembly 6, the vertical shaft ram 14 is slidably arranged on the vertical sides of the vertical grinding slide 19 (the vertical sides of the vertical grinding slide 19 are both provided with the second linear guide rail pair 18), the Z-axis driving member 20 is installed above the vertical shaft ram 14, and the grinding head is arranged on the vertical shaft ram 14.

[0041] In the embodiment, the grinding head comprises an electric spindle and a grinding wheel 15 and a secondary shaft and a grinding wheel 16, the electric spindle and the grinding wheel 15 are arranged in the inner cavity of the vertical shaft ram 14, and the secondary shaft and the grinding wheel 16 are fixed on the lower side of the vertical shaft ram 14 and located beside the exposed part of the electric spindle and the grinding wheel 15.

[0042] In the embodiment, the vertical shaft grinding head assembly 7 further comprises a second linear grating ruler 17 for detecting, compensating and correcting the vertical movement accuracy of the vertical shaft ram 14, and the second linear grating ruler 17 is vertically arranged on the vertical shaft ram 14. During the movement of the vertical shaft ram 14, the second linear grating ruler 17 can detect the position and accuracy of the movement of the vertical shaft ram 14 in real time, and the movement of the ram is compensated and corrected through accurate measurement data, thereby improving the grinding accuracy.

[0043] In the embodiment, the hydrostatic guide rail 23 comprises a guide rail groove 24, a hydrostatic slide 25, an upper guide rail 26 for pressing the hydrostatic slide 25 to move in the guide rail groove 24, and a second driving member 27 for driving the workpiece fixing table 28 to slide (along the X-axis). The workpiece fixing table 28 is arranged on the hydrostatic slide 25, the hydrostatic slide 25 is slidably arranged in the guide rail groove 24 and the upper guide rail 26, the second driving member 27 is connected with the workpiece fixing table 28, the hydrostatic slide 25 is connected with the workpiece fixing table 28 by a fastener, and the hydrostatic slide 25 is provided with an oil hole connected with the external hydraulic station 2 through a hydraulic pipeline. Specifically, the oil hole on the hydrostatic slide 25 and the inherent oil hole on the workpiece fixing table 28 are connected, the inherent oil hole on the workpiece fixing table 28 is connected with the hydraulic pipeline, the hydraulic pipeline is connected with the hydraulic station 2, and the entire system is provided with stable hydraulic oil by the hydraulic station 2.

[0044] The hydraulic oil flows out of the wall of the hydrostatic slide 25, so that the guide rail groove 24 in contact with the hydrostatic slide 25 has hydraulic oil. An oil film is formed on the contact surfaces between the upper guide rail 26 and the hydrostatic slide 25, and between the hydrostatic slide 25 and the guide rail groove 24, the oil film bears the load of the moving parts, so that the moving parts are not in direct contact with the guide rail surface, the friction and wear are reduced, and the movement accuracy and stability are improved.

[0045] In the embodiment, the workpiece fixing table 28 comprises a workbench 29 and an electromagnetic permanent chuck 30 for fixing the workpiece to be processed, and the electromagnetic permanent chuck 30 is arranged on the workbench 29. The workbench 29 is further provided with a profiled grinding wheel shaft 31 for periodically dressing the grinding wheel.

[0046] In the embodiment, the grinding machine main machine 1 is externally provided with a protection assembly 9, and the bottom of the grinding machine main machine 1 is provided with a foot cup with height adjustment function, and the lower portion of the foot cup is provided with a damping iron pad 21.

[0047] The embodiment also includes a hydraulic station 2 for providing hydraulic oil to the hydrostatic guide 23 in the grinding machine main machine 1, an oil cooler 3 for cooling the hydraulic oil, a spindle cooler 4 for grinding machine spindle cooling processing, and a filter cooler 5 for filtering the cutting waste liquid generated during processing. The hydraulic station 2, the oil cooler 3, the spindle cooler 4 and the filter cooler 5 are all connected with the grinding machine main machine 1. The hydraulic station 2 provides power for the grinding machine main machine 1 to drive it to complete various mechanical actions, and cooperates with the oil cooler 3, the spindle cooler 4 and the filter cooler 5 to provide a stable, efficient and environmentally friendly working environment for the high-precision vertical slide grinding machine.

[0048] In the embodiment, when the grinding machine main machine 1 is working, first place the workpiece to be processed on the electromagnetic permanent magnet chuck 30 to avoid moving the workpiece during processing and affecting the grinding accuracy. Turn on the hydraulic station 2, the oil cooler 3, the spindle cooler 4 and the filter cooler 5, adjust the position of the grinding head, make the electric spindle and the grinding wheel 15 and the workpiece to be processed at the same height, turn on the second driving part 27 to drive the workpiece fixing table 28 to slide, and simultaneously turn on the electric spindle and the grinding wheel 15 to rotate, and complete the grinding work of the workpiece to be processed.

[0049] In the embodiment, when the electric spindle and the grinding wheel 15 are trimmed, only the first driving part 11 and the Z-axis driving part 20 need to be turned on, the position of the vertical shaft ram 14 is adjusted, the grinding wheel is moved to the shaped grinding wheel shaft 31, and the trimming work of the electric spindle and the grinding wheel 15 can be completed.

[0050] In the embodiment, when the workbench 29 is trimmed, only the auxiliary shaft and the grinding wheel 16 need to be turned on, and the first driving part 11 is started at the same time. The position of the vertical shaft ram 14 is adjusted, the auxiliary shaft and the grinding wheel 16 indirectly connected thereto are moved to the workbench 29, the second driving part 27 is started, and the workbench 29 is moved to complete the trimming work of the workbench 29.

[0051] In the embodiment, when the auxiliary shaft and the grinding wheel 16 are trimmed, only the auxiliary shaft and the grinding wheel 16 need to be turned on, and the first driving part 11 is started at the same time. The position of the vertical shaft ram 14 is adjusted, the auxiliary shaft and the grinding wheel 16 indirectly connected thereto are moved to the workbench 29, and a diamond pen is arranged on the workbench 29 to complete the trimming work of the auxiliary shaft and the grinding wheel 16.

[0052] The detailed working process of the high-precision vertical slide grinding machine of the embodiment is as follows:

[0053] When the grinder main machine 1 works, first, the workpiece to be processed is placed on the electromagnetic permanent magnet chuck 30, so as to avoid the workpiece from moving during the processing and affecting the grinding precision. Before starting, the hydraulic station 2, the oil cooler 3, the main shaft cooler 4, the filter cooler 5 and the like need to be started. After the workpiece is placed, the protection door is closed, the program control is started, and the system automatically processes according to the established program, such as adjusting the position of the grinding head, making the electric spindle and the grinding wheel 15 and the workpiece processing surface parallel or perpendicular, starting the second driving member 27 to drive the workpiece fixing table 28 to slide, synchronously starting the electric spindle and the grinding wheel 15 to rotate, and grinding the workpiece in real time according to the established rotating speed. The electric spindle and the grinding wheel 15 whole assembly can move in the Z direction, can move in the Y direction, and the workpiece on the workbench 29 can move along the X axis, so that the numerical control copying processing can be realized within a certain range.

[0054] After the grinding work is completed, all the moving parts return to the initial position, the automatic door is opened, the worker takes out the workpiece, recharges, and performs the next cycle work.

[0055] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-precision vertical slide grinder characterized by comprising: The grinding machine main machine (1) includes a bed base (22), an integral gantry column assembly (6), a vertical spindle grinding head assembly (7) for grinding the workpiece to be processed, and a workpiece table assembly (8) for fixing the workpiece to be processed. The vertical spindle grinding head assembly (7) and the integral gantry column assembly (6) are connected, the integral gantry column assembly (6) is erected on the bed base (22), the workpiece table assembly (8) is arranged on the bed base (22), and the workpiece table assembly (8) includes a workpiece fixing table (28) for fixing the workpiece to be processed and a static pressure guide rail (23) for driving the workpiece fixing table (28) to slide on the bed base (22).

2. The high-precision vertical slide grinder according to claim 1, wherein The integral gantry column assembly (6) includes a cross beam column (10), a first linear guide rail pair (12), and a first driving member (11) for driving the vertical spindle grinding head assembly (7) to move horizontally on the cross beam column (10). The cross beam column (10) is an integral inverted U-shaped structure, the first linear guide rail pair (12) is arranged horizontally on the cross beam column (10), and the first driving member (11) is fixed on the cross beam column (10) and connected with the vertical spindle grinding head assembly (7).

3. The high precision vertical slide grinder according to claim 2, wherein The integral gantry column assembly (6) further includes a first linear grating ruler (13) for detecting, compensating and correcting the horizontal motion accuracy of the vertical spindle grinding head assembly (7), and the first linear grating ruler (13) is arranged horizontally on the cross beam column (10).

4. The high precision vertical slide grinder according to claim 1, wherein The vertical spindle grinding head assembly (7) includes a vertical spindle ram (14), a vertical grinding slide (19), a Z-axis driving member (20) for driving the vertical spindle ram (14) to move along the Z-axis, and a grinding head for grinding the workpiece to be processed. The vertical grinding slide (19) is slidably arranged on the integral gantry column assembly (6), the vertical spindle ram (14) is slidably arranged on both vertical sides of the vertical grinding slide (19) through a second linear guide rail pair (18), the Z-axis driving member (20) is installed above the vertical spindle ram (14), and the grinding head is arranged on the vertical spindle ram (14).

5. The high precision vertical slide grinder according to claim 4, wherein The grinding head includes an electric spindle and a grinding wheel (15) and a secondary shaft and a grinding wheel (16), the electric spindle and the grinding wheel (15) are arranged in the inner cavity of the vertical spindle ram (14), and the secondary shaft and the grinding wheel (16) are fixed on the lower side of the vertical spindle ram (14) and located beside the exposed part of the electric spindle and the grinding wheel (15).

6. The high precision vertical slide grinder according to claim 4, wherein The vertical spindle grinding head assembly (7) further includes a second linear grating ruler (17) for detecting, compensating and correcting the vertical motion accuracy of the vertical spindle ram (14), and the second linear grating ruler (17) is arranged vertically on the vertical spindle ram (14).

7. The high precision vertical slide grinder according to claim 1, wherein The hydrostatic guide rail (23) comprises a guide rail groove (24), a hydrostatic slide block (25), an upper guide rail (26) for pressing the hydrostatic slide block (25) to move in the guide rail groove (24), and a second driving member (27) for driving the workpiece fixing table (28) to slide, the workpiece fixing table (28) is arranged on the hydrostatic slide block (25), the hydrostatic slide block (25) is arranged to slide in the guide rail groove (24) and the upper guide rail (26), the second driving member (27) is connected with the workpiece fixing table (28), the hydrostatic slide block (25) is connected with the workpiece fixing table (28), the hydrostatic slide block (25) is provided with an oil hole, and the oil hole is connected with an external hydraulic station (2) through a hydraulic pipeline.

8. The high precision vertical slide grinder according to claim 1, wherein The workpiece fixing table (28) comprises a workbench (29) and an electromagnetic permanent magnet chuck (30) for fixing a workpiece to be processed, the electromagnetic permanent magnet chuck (30) is arranged on the workbench (29), and the workbench (29) is further provided with a shaped grinding wheel shaft (31) for periodically dressing a grinding wheel.

9. The high precision vertical slide grinder according to any one of claims 1 to 8, characterized in that, The grinding machine main machine (1) is externally provided with a protection assembly (9), the bottom of the grinding machine main machine (1) is provided with a foot cup with a height adjusting function, and the lower portion of the foot cup is provided with a damping iron pad (21).

10. The high precision vertical slide grinder according to any one of claims 1 to 8, characterized in that, Further comprising a hydraulic station (2) for providing hydraulic oil for the hydrostatic guide rail (23) in the grinding machine main machine (1), an oil cooler (3) for cooling the hydraulic oil, a main shaft cooler (4) for cooling processing of the grinding machine main shaft, and a filter cooler (5) for filtering processing of cutting waste liquid generated in the processing, the hydraulic station (2), the oil cooler (3), the main shaft cooler (4) and the filter cooler (5) are connected with the grinding machine main machine (1).

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