A low-magnification etching device for metallography

Abstract

This utility model discloses a low-magnification etching device for metallography, belonging to the technical field of material performance testing. It includes an XYZ three-axis moving platform, a basket, and a main frame. The XYZ three-axis moving platform is installed in the main frame, and the basket is installed below the Y-axis slide of the Y-axis moving device within the XYZ three-axis moving platform. The basket includes a base plate, connecting rods, and a placement plate. The connecting rods are hung on the base plate via elongated slots and pass through hanging holes at both ends of the placement plate. The hanging blocks of the connecting rods contact the placement plate, assembling the placement plate below the base plate. A metal sample is placed on the placement plate. This utility model allows the basket containing the metal sample to move along the X, Y, and Z axes; thus, during metallographic experiments, personnel do not need to come into contact with the etching solution, effectively improving the safety of metallographic experiments.

Description

Technical Field

[0001] This invention belongs to the field of material performance testing technology, specifically a low-magnification etching device for metallography. Background Technology

[0002] Metallography, as a core discipline studying the relationship between the microstructure and properties of metallic materials, has applications spanning the entire industry chain, including materials research and development, manufacturing, quality control, and failure analysis. It serves as a crucial bridge connecting the microstructure and macroscopic properties of materials. This device can replace manual labor in placing samples into corrosion and cleaning tanks during strong acid and alkali corrosion processes, improving the safety, reliability, and efficiency of the process.

[0003] Metallographic low-magnification etching apparatus is mainly used to replace manual operation when immersing samples in etching solution and during cleaning.

[0004] In metallographic studies, polished metal samples are immersed in an etching solution (strong acid / alkali). The immersion time and solution concentration are controlled empirically. Once observable differences in microstructure are formed on the surface, the samples are removed, cleaned, dried, and observed. Manual operation presents safety hazards and limitations due to uneven etching; therefore, low-magnification etching apparatuses are a crucial support for the modernization of metallographic analysis techniques. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model provides a low-magnification etching device for metallography. The technical solution includes: an XYZ three-axis moving platform, a basket, and a main frame, wherein the XYZ three-axis moving platform is installed in the main frame, and a basket is installed below the Y-axis slide of the Y-axis moving device in the XYZ three-axis moving platform.

[0006] The suspended platform includes a base plate, connecting rods, and a placement plate. The connecting rods are hung on the base plate via elongated slots. The connecting rods pass through hanging holes at both ends of the placement plate, and the hanging blocks of the connecting rods contact the placement plate, so that the placement plate is assembled below the base plate. The metal sample is placed on the placement plate.

[0007] The substrate has several elongated grooves evenly spaced on it, and the grooves have groups of holes. Each group of holes consists of several circular through holes along the direction of the grooves. The width of the grooves is smaller than the diameter of the circular through holes. Each group of holes has at least one pair of circular through holes that are equidistant from the two hanging holes on the placement plate.

[0008] The connecting rod includes an upper rod, a slotted part, a middle rod, and a hanging block that are integrally fixed from top to bottom. The upper rod and the middle rod are both clearance-fitted with the circular through holes in the hole group of the substrate. The cross-sectional diameter of the hanging block is larger than the cross-sectional diameter of the middle rod, and the thickness of the slotted part is smaller than the width of the long slot.

[0009] The placement plate has multiple permeation holes.

[0010] The assembled placement plate hangs naturally, and the connecting rod is perpendicular to the base plate and the placement plate. The axis of the connecting rod coincides with the Z-axis. During operation, the number of placement plates to be installed is selected according to the size of the metal sample. The number of connecting rods to be installed is twice the number of placement plates to be installed. The number of placement plates to be installed is the same as the number of long slots.

[0011] The main frame includes a first support column, a second support column, a third support column, a fourth support column, a top frame, a bottom frame, and sliding rollers. The top frame and the bottom frame are both rectangular frames. The top ends of the first support column, the second support column, the third support column, and the fourth support column are respectively installed at the four corners of the top frame, and the bottom ends of the first support column, the second support column, the third support column, and the fourth support column are respectively installed at the four corners of the bottom frame. The sliding rollers are installed at the four corners of the bottom frame.

[0012] The XYZ three-axis moving platform includes: a Z-axis moving device, an X-axis moving device, and a Y-axis moving device. The Y-axis frame of the Y-axis moving device is mounted on the X-axis slide of the X-axis moving device, the X-axis frame of the X-axis moving device is mounted on the Z-axis slide of the Z-axis moving device, and the Z-axis moving device is mounted on the main frame.

[0013] The Y-axis moving device includes: a first Y-axis slider, a Y-axis slide table, a second Y-axis slider, a rack, a gearbox, a Y-axis motor, a Y-axis frame, a fixed beam, a first Y-axis slide rail, a second Y-axis slide rail, and a Y-axis guide rail. The housing of the Y-axis motor is fixed in the Y-axis frame. The rack is mounted on one side of the Y-axis frame via a rotating gear. The rack is connected to the drive shaft of the Y-axis motor via the gearbox. The Y-axis frame has a first Y-axis slide rail, a Y-axis guide rail, and a second Y-axis slide rail extending towards the Y-axis. The Y-axis slide table is equipped with the first Y-axis slider and the second Y-axis slide rail. Between the two Y-axis sliders, the Y-axis slide is fixed to the rack, and the Y-axis slide and Y-axis guide rail are connected by a sliding fit. The first Y-axis slider and the first Y-axis guide rail are connected by a sliding fit, and the second Y-axis slider and the second Y-axis guide rail are connected by a sliding fit. The base plate of the suspended basket is fixed to the first Y-axis slider, the Y-axis slide, and the second Y-axis slider by screws. One end of the first Y-axis slider, the Y-axis slide, and the second Y-axis slider extending outward is fixed to the fixed beam, so that the rack is driven to rotate by the Y-axis motor, causing the suspended basket to move along the Y-axis.

[0014] The X-axis moving device includes: an X-axis frame, an X-axis motor, an X-axis lead screw, an X-axis slide table, a first X-axis slide rail, a second X-axis slide rail, a first X-axis slider, a second X-axis slider, a third X-axis slider, and a fourth X-axis slider. The X-axis lead screw, positioned perpendicular to the Y-axis, is rotatably connected to the X-axis frame. The X-axis lead screw is connected to the drive shaft of the X-axis motor via a coupling. The housing of the X-axis motor is fixed to the X-axis frame. The X-axis frame has the first and second X-axis slide rails. The X-axis slide table is connected to the X-axis lead screw via a threaded connection. The X-axis slide and X-axis guide rail are connected by a sliding fit. The center of the Y-axis frame is fixed to the X-axis slide by screws. The four corners of the Y-axis frame are fixed to the first X-axis slider, the second X-axis slider, the third X-axis slider, and the fourth X-axis slider by screws. The first and second X-axis sliders are slidably mounted on the first X-axis guide rail, and the third and fourth X-axis sliders are slidably mounted on the second X-axis guide rail. Thus, the X-axis motor drives the X-axis lead screw to rotate, causing the Y-axis moving device to move along the X-axis direction.

[0015] The Z-axis moving device includes: a Z-axis lead screw, a Z-axis motor, a Z-axis slide, a first Z-axis slider, a second Z-axis slider, a third Z-axis slider, and a fourth Z-axis slider. The Z-axis lead screw, arranged vertically, is rotatably connected to the main frame. The Z-axis lead screw is connected to the drive shaft of the Z-axis motor via a coupling. The housing of the Z-axis motor is fixed in the main frame. The Z-axis slide is threadedly connected to the Z-axis lead screw. The first, second, third, and fourth Z-axis sliders are respectively fixed to the four corners of the X-axis frame. The third and fourth Z-axis sliders are connected to the first, second, third, and fourth Z-axis slide rails respectively via sliding fit. The first, second, third, and fourth Z-axis slide rails are respectively mounted on the first, second, third, and fourth support columns. The X-axis moving device is connected to the Z-axis slide table via screws, thereby driving the Z-axis lead screw to rotate via the Z-axis motor, causing the X-axis moving device to move along the Z-axis direction. The Z-axis motor, X-axis motor, and Y-axis motor of the XYZ three-axis moving platform are connected to the control system.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model enables the basket containing the metal sample to move along the X, Y, and Z axes; thus, during metallographic experiments, the operator does not need to come into contact with the corrosive liquid, effectively improving the safety of metallographic experiments.

[0018] 2. The plate in the basket has permeation holes, which ensures that the bottom of the metal sample is fully immersed during metallographic experiments.

[0019] 3. Rolling casters are installed at the bottom for easy movement of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an embodiment of a low-magnification etching device for metallography according to the present invention.

[0021] Figure 2 This is an enlarged structural schematic diagram of the suspended basket part in an embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the connecting rod structure according to an embodiment of the present utility model;

[0023] Figure 4 This is a partially enlarged structural schematic diagram of an embodiment of the present utility model.

[0024] Among them: 1-Z-axis moving device, 2-X-axis moving device, 3-Y-axis moving device, 4-suspended basket, 5-main frame, 6-XYZ three-axis moving platform, 101-Z-axis lead screw, 102-Z-axis motor, 103-Z-axis slide, 104-first Z-axis slider, 105-second Z-axis slider, 106-third Z-axis slider, 107-fourth Z-axis slider, 201-X-axis frame, 202-X-axis motor, 203-X-axis lead screw, 204-X-axis slide, 205-first X-axis slider, 206-second X-axis slider, 207-third X-axis slider, 208-fourth X-axis slider, 301-first Y-axis slider, 302-Y-axis slide, 303-Second Y-axis slider, 304-Rack, 305-Gearbox, 306-Y-axis motor, 307-Y-axis frame, 401-Base plate, 402-Connecting rod, 403-Placement plate, 404-Hole group, 406-Long groove, 407-Hanging hole, 408-Permeation hole, 4021-Upper rod, 4022-Slotted part, 4023-Middle rod, 4024-Hanging block, 501-First support column, 502-Second support column, 503-Third support column, 504-Fourth support column, 505-Top frame, 506-Bottom frame, 507-Sliding roller. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] like Figures 1-4 The embodiment of the present utility model shown includes: an XYZ three-axis moving platform 6, a suspended basket 4 and a main frame 5, wherein the XYZ three-axis moving platform 6 is installed in the main frame 5, and the suspended basket 4 is installed below the Y-axis slide 302 of the Y-axis moving device 3 in the XYZ three-axis moving platform 6;

[0027] The suspended basket 4 includes a base plate 401, a connecting rod 402, and a placement plate 403. The connecting rod 402 is hung on the base plate 401 through a long slot 406. The connecting rod 402 passes through the hanging holes 407 at both ends of the placement plate 403. The hanging blocks 4024 of the connecting rod 402 contact the placement plate 403, so that the placement plate 403 is assembled below the base plate 401. The metal sample is placed on the placement plate 403.

[0028] The substrate 401 has several elongated grooves 406 evenly spaced on it. The elongated grooves 406 have hole groups 404. The hole group 404 consists of several circular through holes 405 along the direction of the elongated grooves 406. The width of the elongated grooves 406 is smaller than the diameter of the circular through holes 405. Each hole group 404 has at least one pair of circular through holes 405 with a spacing equal to that of the two hanging holes 407 on the placement plate 403.

[0029] The connecting rod 402 includes an upper rod portion 4021, a slotted portion 4022, an intermediate rod 4023, and a hanging block 4024, which are integrally fixed from top to bottom. The upper rod portion 4021 and the intermediate rod portion 4022 are both clearance-fitted with the circular through hole 405 in the hole group 404. The cross-sectional diameter of the hanging block 4024 is larger than the cross-sectional diameter of the intermediate rod 4023, and the thickness of the slotted portion 4022 is smaller than the width of the elongated groove 406.

[0030] The placement plate 403 has multiple permeation holes 408, which allow the corrosive liquid to pass through the permeation holes 408 to corrode the bottom of the metal sample.

[0031] After assembly, the placement plate 403 hangs down naturally, and the connecting rod 402 is perpendicular to the base plate 401 and the placement plate 403. The axis of the connecting rod 402 coincides with the Z-axis. During operation, the number of placement plates 403 to be installed is selected according to the size of the metal sample. The number of connecting rods 402 to be installed is twice the number of placement plates 403 to be installed. The number of placement plates 403 to be installed is the same as the number of long slots 406.

[0032] The main frame 5 includes a first support column 501, a second support column 502, a third support column 503, a fourth support column 504, a top frame 505, a bottom frame 506, and sliding rollers 507. The top frame 505 and the bottom frame 506 are both rectangular frames. The top ends of the first support column 501, the second support column 502, the third support column 503, and the fourth support column 504 are respectively installed at the four corners of the top frame 505. The bottom ends of the first support column 501, the second support column 502, the third support column 503, and the fourth support column 504 are respectively installed at the four corners of the bottom frame 506. The sliding rollers 507 are installed at the four corners of the bottom frame 506.

[0033] The XYZ three-axis moving platform 6 includes: a Z-axis moving device 1, an X-axis moving device 2, and a Y-axis moving device 3. The Y-axis frame 307 of the Y-axis moving device 3 is mounted on the X-axis slide 204 of the X-axis moving device 2. The X-axis frame 201 of the X-axis moving device 2 is mounted on the Z-axis slide of the Z-axis moving device 1. The Z-axis moving device 1 is mounted on the main frame 5.

[0034] The Y-axis moving device 3 includes: a first Y-axis slider 301, a Y-axis slide table 302, a second Y-axis slider 303, a rack 304, a gearbox 305, a Y-axis motor 306, a Y-axis frame 307, a fixed beam 308, a first Y-axis slide rail, a second Y-axis slide rail, and a Y-axis guide rail. The housing of the Y-axis motor 306 is fixed in the Y-axis frame 307. The rack 304 is mounted on one side of the Y-axis frame 307 via a rotating gear. The rack 304 is connected to the drive shaft of the Y-axis motor 306 via the gearbox 305. The Y-axis frame 307 has a first Y-axis slide rail, a Y-axis guide rail, and a second Y-axis slide rail extending towards the Y-axis. The Y-axis slide table 302 is equipped with the first Y-axis slider 301. Between the second Y-axis slider 303, the Y-axis slide 302 is fixed to the rack 304. The Y-axis slide 302 and the Y-axis guide rail are connected by a sliding fit. The first Y-axis slider 301 and the first Y-axis guide rail are connected by a sliding fit. The second Y-axis slider 303 and the second Y-axis guide rail are connected by a sliding fit. The base plate 401 of the suspended basket 4 is fixed to the first Y-axis slider 301, the Y-axis slide 302 and the second Y-axis slider 303 by screws. One end of the first Y-axis slider 301, the Y-axis slide 302 and the second Y-axis slider 303 extending outward is fixed to the fixed beam 308. Thus, the rack 304 is driven to rotate by the Y-axis motor 306, causing the suspended basket 4 to move along the Y-axis.

[0035] The X-axis moving device 2 includes: an X-axis frame 201, an X-axis motor 202, an X-axis lead screw 203, an X-axis slide table 204, a first X-axis slide rail, a second X-axis slide rail, a first X-axis slider 205, a second X-axis slider 206, a third X-axis slider 207, and a fourth X-axis slider 208. The X-axis lead screw 203, which is arranged perpendicular to the Y-axis, is rotatably connected to the X-axis frame 201. The X-axis lead screw 203 is connected to the drive shaft of the X-axis motor 202 via a coupling. The housing of the X-axis motor 202 is fixed to the X-axis frame 201. The X-axis frame 201 has the first and second X-axis slide rails. The X-axis slide table 204 is connected to the X-axis lead screw 203. The X-axis slide 204 and the X-axis guide rail are connected by a threaded connection and a sliding connection. The center of the Y-axis frame 307 is fixed to the X-axis slide 204 by screws. The four corners of the Y-axis frame 307 are fixed to the first X-axis slider 205, the second X-axis slider 206, the third X-axis slider 207 and the fourth X-axis slider 208 by screws. The first X-axis slider 205 and the second X-axis slider 206 are slidably mounted on the first X-axis guide rail, and the third X-axis slider 207 and the fourth X-axis slider 208 are slidably mounted on the second X-axis guide rail. Thus, the X-axis motor 202 drives the X-axis lead screw 203 to rotate, causing the Y-axis moving device 3 to move along the X-axis direction.

[0036] Z-axis moving device 1 includes: Z-axis lead screw 101, Z-axis motor 102, Z-axis slide 103, first Z-axis slider 104, second Z-axis slider 105, third Z-axis slider 106, and fourth Z-axis slider 107. The Z-axis lead screw 101, arranged vertically, is rotatably connected to the main frame 5. The Z-axis lead screw 101 is connected to the drive shaft of the Z-axis motor 102 via a coupling. The housing of the Z-axis motor 102 is fixed in the main frame 5. The Z-axis slide 103 is threadedly connected to the Z-axis lead screw 101. The first Z-axis slider 104, second Z-axis slider 105, third Z-axis slider 106, and fourth Z-axis slider 107 are respectively connected to the X-axis frame. The four corners of 201 are fixed. The first Z-axis slider 104, the second Z-axis slider 105, the third Z-axis slider 106 and the fourth Z-axis slider 107 are connected to the first Z-axis slide rail, the second Z-axis slide rail, the third Z-axis slide rail and the fourth Z-axis slide rail respectively through sliding fit. The first Z-axis slide rail, the second Z-axis slide rail, the third Z-axis slide rail and the fourth Z-axis slide rail are respectively set on the first support column 501, the second support column 502, the third support column 503 and the fourth support column 504. The X-axis moving device 2 is connected to the Z-axis slide table 103 by screws, so that the Z-axis motor 102 drives the Z-axis lead screw 101 to rotate, so that the X-axis moving device 2 moves along the Z-axis direction.

[0037] The Z-axis motor 102, X-axis motor 202, and Y-axis motor 306 of the XYZ three-axis moving platform 6 are connected to the control system. The Z-axis is perpendicular to the horizontal plane, and the X-axis, Y-axis, and Z-axis are perpendicular to each other.

[0038] The working process is as follows: The main frame 5 is set up next to the corrosion pool. The number of mounting plates 403 required is selected according to the size of the metal sample. The mounting plates 403 are connected to the base plate 401 by the connecting rod 402. The metal sample is placed on the mounting plate 403. The operator controls the Z-axis moving device 1, X-axis moving device 2 and Y-axis moving device 3 in the XYZ three-axis moving platform 6 through the control system to move the position of the basket 4 so that the metal sample is immersed in the corrosion liquid. After being fully immersed, the Z-axis moving device 1, X-axis moving device 2 and Y-axis moving device 3 are controlled to remove the metal sample from the corrosion liquid. After removal, other observation experiments are carried out on the metal sample.

Claims

1. A low-power etching device for metallography, characterized by, include: XYZ three-axis moving platform (6), basket (4) and main frame (5), wherein the XYZ three-axis moving platform (6) is installed in the main frame (5), and the basket (4) is installed below the Y-axis slide (302) of the Y-axis moving device (3) in the XYZ three-axis moving platform (6). The basket (4) includes: a base plate (401), a connecting rod (402) and a placement plate (403), wherein the connecting rod (402) is hung on the base plate (401) through a long slot (406), the connecting rod (402) passes through the hanging holes (407) at both ends of the placement plate (403), the hanging block (4024) of the connecting rod (402) contacts the placement plate (403), so that the placement plate (403) is assembled below the base plate (401); the metal sample is placed on the placement plate (403).

2. The apparatus for metallographic macro etching according to claim 1, wherein, The substrate (401) is provided with several elongated grooves (406) evenly spaced apart. The elongated grooves (406) are provided with hole groups (404). The hole group (404) consists of several circular through holes (405) along the direction of the elongated grooves (406). The width of the elongated grooves (406) is smaller than the diameter of the circular through holes (405). Each hole group (404) is provided with at least one pair of circular through holes (405) with a spacing equal to that of the two hanging holes (407) on the placement plate (403).

3. The macro etching device for metallography according to claim 1, wherein The connecting rod (402) includes an upper rod (4021), a slotted part (4022), an intermediate rod (4023), and a hanging block (4024) that are integrally fixed from top to bottom. The upper rod (4021) and the intermediate rod (4022) are both clearance-fitted with the circular through hole (405) of the hole group (404) of the substrate (401). The cross-sectional diameter of the hanging block (4024) is larger than the cross-sectional diameter of the intermediate rod (4023), and the thickness of the slotted part (4022) is smaller than the width of the long groove (406).

4. A device for macro-etching for metallography according to claim 1, 2 or 3, characterized in that The placement plate (403) has multiple permeation holes (408).

5. The macro etching device for metallography according to claim 1, wherein The assembled placement plate (403) hangs down naturally, and the connecting rod (402) is perpendicular to the base plate (401) and the placement plate (403). The axis of the connecting rod (402) coincides with the Z-axis. During operation, the number of placement plates (403) to be installed is selected according to the size of the metal sample. The number of connecting rods (402) to be installed is twice the number of placement plates (403) to be installed. The number of placement plates (403) to be installed is the same as the number of long slots (406).

6. The macro etching device for metallography according to claim 1, wherein The main frame (5) includes a first support column (501), a second support column (502), a third support column (503), a fourth support column (504), a top frame (505), a bottom frame (506), and sliding rollers (507). The top frame (505) and the bottom frame (506) are both rectangular frames. The top ends of the first support column (501), the second support column (502), the third support column (503), and the fourth support column (504) are respectively installed at the four corners of the top frame (505). The bottom ends of the first support column (501), the second support column (502), the third support column (503), and the fourth support column (504) are respectively installed at the four corners of the bottom frame (506). The sliding rollers (507) are installed at the four corners of the bottom frame (506).

7. The macro etching device for metallography according to claim 1, wherein The XYZ three-axis moving platform (6) includes: a Z-axis moving device (1), an X-axis moving device (2) and a Y-axis moving device (3). The Y-axis frame (307) of the Y-axis moving device (3) is mounted on the X-axis slide (204) of the X-axis moving device (2). The X-axis frame (201) of the X-axis moving device (2) is mounted on the Z-axis slide of the Z-axis moving device (1). The Z-axis moving device (1) is mounted in the main frame (5).

8. The apparatus for metallographic macro etching according to claim 7, wherein, The Y-axis moving device (3) includes: a first Y-axis slider (301), a Y-axis slide table (302), a second Y-axis slider (303), a rack (304), a gearbox (305), a Y-axis motor (306), a Y-axis frame (307), a fixed beam (308), a first Y-axis slide rail, a second Y-axis slide rail, and a Y-axis guide rail. The housing of the Y-axis motor (306) is fixed in the Y-axis frame (307). The rack (304) is mounted on one side of the Y-axis frame (307) via a rotating gear. The rack (304) is connected to the drive shaft of the Y-axis motor (306) via the gearbox (305). The Y-axis frame (307) has a first Y-axis slide rail, a Y-axis guide rail, and a second Y-axis slide rail extending towards the Y-axis. The Y-axis slide table (302) is equipped with the first Y-axis slider (301). 1) Between the second Y-axis slider (303), the Y-axis slide (302) is fixed to the rack (304), the Y-axis slide (302) and the Y-axis guide rail are connected by a sliding fit, the first Y-axis slider (301) and the first Y-axis guide rail are connected by a sliding fit, the second Y-axis slider (303) and the second Y-axis guide rail are connected by a sliding fit, the base plate (401) of the basket (4) is fixed to the first Y-axis slider (301), the Y-axis slide (302) and the second Y-axis slider (303) by screws, one end of the first Y-axis slider (301), the Y-axis slide (302) and the second Y-axis slider (303) extending outward is fixed to the fixed beam (308), so that the rack (304) is driven to rotate by the Y-axis motor (306) to move the basket (4) along the Y-axis direction.

9. The apparatus for macro etching of metallography according to claim 7, wherein The X-axis moving device (2) includes: an X-axis frame (201), an X-axis motor (202), an X-axis lead screw (203), an X-axis slide table (204), a first X-axis slide rail, a second X-axis slide rail, a first X-axis slider (205), a second X-axis slider (206), a third X-axis slider (207), and a fourth X-axis slider (208). The X-axis lead screw (203), arranged perpendicular to the Y-axis, is rotatably connected to the X-axis frame (201). The X-axis lead screw (203) is connected to the drive shaft of the X-axis motor (202) via a coupling. The housing of the X-axis motor (202) is fixed to the X-axis frame (201). The X-axis frame (201) has a first X-axis slide rail and a second X-axis slide rail. The X-axis slide table (204) is connected to the X-axis lead screw (208). 203) The X-axis slide (204) and the X-axis guide rail are connected by a threaded connection and a sliding connection. The center of the Y-axis frame (307) is fixed to the X-axis slide (204) by screws. The four corners of the Y-axis frame (307) are fixed to the first X-axis slider (205), the second X-axis slider (206), the third X-axis slider (207) and the fourth X-axis slider (208) by screws. The first X-axis slider (205) and the second X-axis slider (206) are slidably mounted on the first X-axis guide rail, and the third X-axis slider (207) and the fourth X-axis slider (208) are slidably mounted on the second X-axis guide rail. Thus, the X-axis motor (202) drives the X-axis screw (203) to rotate, causing the Y-axis moving device (3) to move along the X-axis direction.

10. The apparatus for macro etching of metallography according to claim 7, wherein The Z-axis moving device (1) includes: a Z-axis lead screw (101), a Z-axis motor (102), a Z-axis slide (103), a first Z-axis slider (104), a second Z-axis slider (105), a third Z-axis slider (106), and a fourth Z-axis slider (107). The Z-axis lead screw (101), which is arranged vertically, is rotatably connected to the main frame (5). The Z-axis lead screw (101) is connected to the drive shaft of the Z-axis motor (102) through a coupling. The housing of the Z-axis motor (102) is fixed in the main frame (5). The Z-axis slide (103) is connected to the Z-axis lead screw (101) through a threaded connection. The first Z-axis slider (104), the second Z-axis slider (105), the third Z-axis slider (106), and the fourth Z-axis slider (107) are also included. The first Z-axis slider (104), the second Z-axis slider (105), the third Z-axis slider (106), and the fourth Z-axis slider (107) are respectively fixed to the four corners of the X-axis frame (201). The first Z-axis slider (104), the second Z-axis slider (105), the third Z-axis slider (106), and the fourth Z-axis slider (107) are respectively connected to the first Z-axis slide rail, the second Z-axis slide rail, the third Z-axis slide rail, and the fourth Z-axis slide rail through sliding fit. The first Z-axis slide rail, the second Z-axis slide rail, the third Z-axis slide rail, and the fourth Z-axis slide rail are respectively set on the first support column (501), the second support column (502), the third support column (503), and the fourth support column (504). The X-axis moving device (2) is connected to the Z-axis slide table (103) by screws, so that the Z-axis motor (102) drives the Z-axis lead screw (101) to rotate, thereby moving the X-axis moving device (2) along the Z-axis direction.

Images