Metallographic grinding and polishing machine auxiliary device suitable for micro-size machined parts

Abstract

The utility model relates to a metallographic phase grinding and polishing machine auxiliary device suitable for micro-size processing parts, which is characterized in that the position of a rotary driving device is adjusted through a position adjusting mechanism, the power shaft end on the lower side of the rotary driving device is fixedly connected with the middle part of a mounting disc, and mounting holes and pressing mechanisms are arranged on the mounting disc along the circumferential direction in a staggered manner; wherein the adjusting rings are arranged in the corresponding mounting holes respectively, blank containing holes are formed in the middles of the adjusting rings, the pressing mechanism is provided with a pressing disc capable of being lifted and put down, a balance weight guide column is arranged on the upper side of the pressing disc, a balance weight disc is arranged on the balance weight guide column in a sleeved mode, and the adjusting rings are arranged on the pressing disc. Blanks are placed in the corresponding blank containing holes respectively, and the upper sides of the blanks are pressed by the pressing discs in the corresponding pressing mechanisms. The adjusting device can be matched with the metallographic grinding and polishing machine according to machining requirements to flexibly adjust the position of the mounting disc for bearing the blank, and meanwhile the machining requirements of the blanks of different sizes and specifications can be met.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary devices for grinding and polishing machines, specifically an auxiliary device for metallographic grinding and polishing machines suitable for micro-sized processed parts. Background Technology

[0002] To observe the metallographic structure of micro-machined parts, the parts must first be mounted, then the surface of the machined parts is ground with sandpaper of varying grits (from fine to coarse). After grinding, the surface is placed on a metallographic polishing machine for sequential coarse and fine polishing. Then, the polished surface is etched with an etchant. Finally, the etched surface is rinsed with alcohol and dried before metallographic observation. Among these steps, the operation of the metallographic polishing machine is particularly crucial. The prepared sample parts should allow for observation of the true microstructure, free from grinding marks, pitting, etc., and inclusions such as graphite in the metal structure should not be detached; otherwise, the accuracy of subsequent metallographic microanalysis will be severely affected. For example, patent CN204843767U discloses a micro-metallographic sample polishing machine, which includes fixtures, polishing discs, and other structures that meet the above requirements.

[0003] Furthermore, the size and shape of metallographic specimen parts are also subject to requirements. As described in the background section of the aforementioned patent CN204843767U, metallographic specimens should be easy to hold and grind, typically being small-diameter cylinders or cubes. However, while the clamp in the aforementioned patent CN204843767U can hold 1 to 6 specimens, the clamp is integrated with the polishing machine and cannot be moved or adjusted. The distance between the specimen parts and the polishing disc is mainly controlled by structures such as the upper slide plate, upper lead screw, and longitudinal reduction motor. This requires a special design for the polishing machine and is not suitable for all polishing machines. It also increases the size and structural complexity of the polishing machine. Patent CN209615190U discloses a rectangular specimen clamp for a metallographic polishing machine, but this clamp is only designed for rectangular specimens. As mentioned above, metallographic specimen parts include various structural forms such as cylinders and cubes, limiting the applicability of this clamp. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary device for metallographic grinding and polishing machine suitable for micro-sized processed parts. It can flexibly adjust the position of the mounting plate for holding blanks according to processing needs, and can also meet the processing needs of blanks of different sizes and specifications.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An auxiliary device for a metallographic polishing machine suitable for micro-sized machined parts includes a mounting plate, adjusting rings, a rotary drive device, and a position adjustment mechanism. The rotary drive device adjusts its position through the position adjustment mechanism. The lower end of the power shaft of the rotary drive device is fixedly connected to the center of the mounting plate. The mounting plate has mounting holes and a clamping mechanism arranged alternately along the circumferential direction. Each adjusting ring is respectively located in a corresponding mounting hole, and the center of the adjusting ring has a blank receiving hole. The clamping mechanism has a pressure plate that can be lifted and lowered, and a counterweight guide column is provided on the upper side of the pressure plate. A counterweight plate is fitted on the counterweight guide column. The blanks are respectively placed in the corresponding blank receiving holes and pressed down by the pressure plate in the corresponding clamping mechanism.

[0007] The mounting hole of the mounting plate is provided with a limiting stop at the upper end, and the upper end of the adjusting ring is provided with a limiting flange that cooperates with the limiting stop.

[0008] The clamping mechanism includes a swingable rocker assembly, with the lower end of the rocker assembly mounted on the mounting plate and the upper end fixedly connected to the pressure plate. A pressure head is provided on the lower side of the pressure plate.

[0009] The rocker assembly includes a movable rocker base, rockers, and a fixed rocker base. The fixed rocker base is fixedly mounted on the mounting plate. The lower end of each rocker is hinged to the fixed rocker base, and the upper end is hinged to the movable rocker base. The movable rocker base is fixedly connected to a horizontally positioned pressure plate.

[0010] The position adjustment mechanism includes a base, a longitudinal guide shaft, a longitudinal adjustment seat, a transverse adjustment shaft, and an adjustment connecting seat. The lower end of the longitudinal guide shaft is fixed to the base. The longitudinal adjustment seat has a first through hole on one side for fitting onto the longitudinal guide shaft, and a second through hole on the other side for fitting onto the transverse adjustment shaft. A first locking bolt is provided on the outside of the first through hole, and a second locking bolt is provided on the outside of the second through hole. The transverse adjustment shaft has an adjustment connecting seat at its end, and the adjustment connecting seat is connected to a drive connecting seat located on one side of the rotary drive device via a connecting locking bolt.

[0011] Both the longitudinal guide shaft and the transverse adjustment shaft are provided with scale lines.

[0012] The rotary drive device is a motor, and the base is equipped with a control knob for controlling the start and stop of the motor.

[0013] The rotary drive device is a rotary handle.

[0014] The base is provided with a mounting seat, and the lower end of the longitudinal guide shaft is fixed in the mounting seat.

[0015] Viewed from above, the mounting plate is tangent to the grinding disc on the metallographic polishing machine, and a processing gap of 3 to 5 mm is maintained between the mounting plate and the grinding disc along the height direction.

[0016] The advantages and positive effects of this utility model are as follows:

[0017] 1. The rotary drive device of this utility model is fixedly connected to the position adjustment mechanism on one side and to the mounting plate on the lower end. In this way, the positional relationship between the mounting plate for holding the blank and the grinding plate of the metallographic grinding and polishing machine can be adjusted by the position adjustment mechanism, without affecting the rotation of the mounting plate to complete the grinding and polishing operation of the blank.

[0018] 2. This utility model has multiple mounting holes on the mounting plate, and a suitable adjustment ring can be placed in each mounting hole according to the specifications of the blank, so as to meet the processing needs of blanks of different sizes and specifications.

[0019] 3. After the adjusting ring and the blank are placed on the mounting plate in sequence, the blank is pressed down by the clamping mechanism on the mounting plate. At the same time, a suitable number and size of counterweights can be placed on the upper side of the pressure plate that presses down the blank according to the blank specifications to prevent the pressure plate from lifting up during processing, while also preventing damage to the blank due to excessive pressure. In addition, considering that the blanks have different shapes and specifications, the processing needs of blanks with different shapes and specifications can also be met by configuring a suitable number and size of counterweights. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 for Figure 1 Top view of the installation disk.

[0022] Figure 3 for Figure 2 AA view in

[0023] Figure 4 for Figure 1 Working status diagram of the intermediate clamping mechanism Figure 1 ,

[0024] Figure 5 for Figure 1 Working status diagram of the intermediate clamping mechanism Figure 2 ,

[0025] Figure 6 This is a schematic diagram of the working state of this utility model.

[0026] Figure 7 for Figure 6 Top view of this utility model.

[0027] Among them, 1 is the mounting plate, 101 is the connecting sleeve, 2 is the clamping mechanism, 201 is the pressure plate, 2011 is the pressure head, 2012 is the counterweight guide column, 202 is the rocker assembly, 2021 is the fixed rocker seat, 2022 is the rocker, 2023 is the movable rocker seat, 203 is the counterweight plate, 3 is the adjusting ring, 301 is the limiting flange, 302 is the blank receiving hole, 4 is the rotary drive device, 401 is the drive connecting seat, 402 is the connecting locking bolt, 5 is the position adjustment mechanism, 501 is the adjusting connecting seat, 502 is the transverse adjusting shaft, 503 is the longitudinal adjusting seat, 5031 is the second locking bolt, 5032 is the first locking bolt, 504 is the longitudinal guide shaft, 505 is the base, 5051 is the mounting seat, 5052 is the control knob, 6 is the metallographic polishing machine, and 601 is the grinding disc. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] like Figures 1-7 As shown, this utility model includes a mounting plate 1, adjusting rings 3, a rotary drive device 4, and a position adjustment mechanism 5. The rotary drive device 4 adjusts its position through the position adjustment mechanism 5. The power shaft end of the lower side of the rotary drive device 4 is fixedly connected to the middle of the mounting plate 1. The mounting plate 1 is provided with mounting holes and a clamping mechanism 2 in an alternating manner along the circumferential direction. Each adjusting ring 3 is respectively provided in the corresponding mounting hole, and each adjusting ring 3 is provided with a blank receiving hole 302 in the middle. The blanks to be processed are respectively placed in the corresponding blank receiving holes 302 and pressed down on the upper side by the corresponding clamping mechanism 2.

[0030] like Figures 6-7 As shown, this utility model is positioned on one side of the metallographic polishing machine 6 during operation, and the position of the rotary drive device 4 is adjusted by the position adjustment mechanism 5, thereby adjusting the relative position between the mounting plate 1 and the grinding plate 601 on the metallographic polishing machine 6, wherein... Figure 7 As shown, viewed from above, the mounting plate 1 is tangent to the grinding plate 601, and as... Figure 6 As shown, a machining gap of 3-5 mm is maintained between the mounting plate 1 and the grinding plate 601 along the height direction. Then, according to the shape and size of the blank, adjusting rings 3 corresponding to the blank are inserted into each mounting hole of the mounting plate 1, such as... Figure 2As shown, this embodiment includes three specifications of adjustment rings 3. One type has a square blank receiving hole 302 in the center, while the other two types have circular blank receiving holes 302 with different diameters. After the adjustment rings 3 are placed, the corresponding blanks are placed into each adjustment ring 3. Then, the clamping mechanism 2 presses the blanks down from above. Finally, the metallographic polishing machine 6 is turned on to rotate the grinding disc 601. At the same time, the rotary drive device 4 can cooperate to drive the mounting disc 1 to rotate to complete the grinding and polishing of the blanks. The metallographic polishing machine 6 is a technology known in the art and is a commercially available product.

[0031] like Figures 2-3 As shown in this embodiment, the upper end of the mounting hole of the mounting plate 1 is provided with a limiting stop, and the upper end of the adjusting ring 3 is provided with a limiting flange 301 that cooperates with the limiting stop.

[0032] like Figure 1 and Figures 4-5 As shown, in this embodiment, the clamping mechanism 2 includes a pressure plate 201, a rocker assembly 202, and a counterweight plate 203. The lower end of the rocker assembly 202 is mounted on the mounting plate 1, and the upper end is fixedly connected to the pressure plate 201. The pressure plate 201 has a pressure head 2011 on its lower side and a counterweight guide post 2012 on its upper side. The counterweight plate 203 is fitted onto the counterweight guide post 2012. When this utility model is working, the rocker assembly 202 drives the pressure plate 201 to lift. At this time, the adjusting ring 3 and the blank to be processed can be placed in sequence. Then, the rocker assembly 202 drives the pressure plate 201 to fall and makes the pressure head 2011 on the lower side of the pressure plate 201 press down on the upper side of the corresponding blank. Then, a counterweight plate 203 of appropriate specifications and number is placed on the counterweight guide post 2012 to prevent the pressure plate 201 from lifting during processing. Since the blanks targeted by this utility model are micro-sized metallographic samples, the above-mentioned counterweight plate 203 can ensure that the pressure plate 201 will not lift up during processing, and at the same time, the blanks will not be damaged due to excessive pressure. In addition, considering that the blanks have different shapes and specifications, the processing needs of blanks with different shapes and specifications can also be met by configuring a suitable number of counterweight plates 203.

[0033] like Figures 4-5 As shown, in this embodiment, the rocker assembly 202 is a four-rocker structure, which includes a movable rocker base 2023, rockers 2022 and a fixed rocker base 2021. The fixed rocker base 2021 is fixedly mounted on the mounting plate 1. The lower end of each rocker 2022 is hinged to the fixed rocker base 2021 and the upper end is hinged to the movable rocker base 2023. The movable rocker base 2023 is fixedly connected to the horizontally arranged pressure plate 201.

[0034] like Figure 1As shown, in this embodiment, the position adjustment mechanism 5 includes a base 505, a longitudinal guide shaft 504, a longitudinal adjustment seat 503, a transverse adjustment shaft 502, and an adjustment connecting seat 501. The lower end of the longitudinal guide shaft 504 is fixed to the base 505. The longitudinal adjustment seat 503 has a first through hole on one side for fitting onto the longitudinal guide shaft 504, and a second through hole on the other side for fitting onto the transverse adjustment shaft 502. A first locking bolt 5032 is provided outside the first through hole, and a second locking bolt 5031 is provided outside the second through hole. When the first locking bolt 5032 is loosened, the longitudinal adjustment seat 503 can move along the longitudinal guide shaft 504. The longitudinal height can be adjusted by moving the longitudinal adjustment seat 503, which can also be rotated around the longitudinal guide shaft 504. When the second locking bolt 5031 is loosened, the transverse adjustment shaft 502 can be moved laterally to achieve horizontal adjustment. The transverse adjustment shaft 502 can also be rotated around its own axis. The end of the transverse adjustment shaft 502 is provided with an adjustment connecting seat 501, and the adjustment connecting seat 501 is connected to the drive connecting seat 401 located on one side of the rotary drive device 4 through the connecting locking bolt 402. When the connecting locking bolt 402 is loosened, the rotary drive device 4 can achieve rotational adjustment with the axis of the connecting locking bolt 402 as the rotation center. This utility model, through the above-described structural design, enables the rotary drive device 4 at the end of the position adjustment mechanism 5 to have two degrees of freedom of movement adjustment: longitudinal (height direction) and lateral (horizontal direction), as well as three degrees of freedom of rotation adjustment: the longitudinal adjustment seat 503 rotates axially around the longitudinal guide shaft 504, the lateral adjustment shaft 502 rotates axially around its own axis, and the rotary drive device 4 rotates axially around the connecting locking bolt 402. This allows for flexible adjustment of the position of the rotary drive device 4 and its lower mounting plate 1. The rotational adjustment takes into account the processing needs of some special parts, such as parts with inclined surfaces or irregular shapes, while also meeting the leveling requirements of the mounting plate 1. Furthermore, as... Figures 6-7 As shown, since this utility model requires precise control of the positional relationship between the mounting plate 1 and the grinding plate 601, and since it is designed for micro-sized machining parts, the position adjustment mechanism 5 of this utility model adopts a manual adjustment method for the sake of convenience of adjustment. Furthermore, scale lines can be set on the longitudinal guide shaft 504 and the transverse adjustment shaft 502 as needed to assist in adjustment.

[0035] The rotary drive device 4 can be selected in automatic or manual mode according to actual needs, such as... Figure 1 When the automatic mode is used, the rotary drive device 4 is a motor, and the base 505 is provided with a control knob 5052 for controlling the start and stop of the motor. When the manual mode is used, the rotary drive device 4 can be a rotary handle or other structure.

[0036] like Figure 1 As shown, in this embodiment, the base 505 is provided with a mounting seat 5051, and the lower end of the longitudinal guide shaft 504 is fixed in the mounting seat 5051.

[0037] The working principle of this utility model is as follows:

[0038] The present invention includes the following steps in operation:

[0039] Step 1: Place the base 505 of the position adjustment mechanism 5 of this utility model on one side of the metallographic polishing machine 6.

[0040] Step 2: Adjust the position of the rotary drive device 4 using the position adjustment mechanism 5, thereby adjusting the relative position between the mounting plate 1 and the grinding plate 601 on the metallographic polishing machine 6, wherein... Figure 6 As shown, a machining gap of 3-5 mm is maintained between the mounting plate 1 and the grinding plate 601 along the height direction, such as... Figure 7 As shown, the mounting disk 1 and the grinding disk 601 are tangent inward along the top view direction.

[0041] Step 3: Based on the shape and size of the blank sample, insert the adjusting rings 3 corresponding to the blank sample into each mounting hole of the mounting plate 1, such as... Figure 2 As shown, this embodiment includes three specifications of adjustment rings 3. One type has a square blank receiving hole 302 in the middle, while the other two types have circular blank receiving holes 302 in the middle with different diameters.

[0042] Step 4: Place the blanks to be processed into the blank receiving holes 302 on the corresponding adjusting rings 3.

[0043] Step 5: Drive the pressure plate 201 in the clamping mechanism 2 to fall down and press down on the corresponding blank.

[0044] Step 6: According to the specifications of the blank, install an appropriate number and specifications of counterweight plates 203 on the counterweight guide columns 2012 on the upper side of each pressure plate 201.

[0045] Step 7: Turn on the metallographic grinding and polishing machine 6 to make the grinding disc 601 rotate. At the same time, the rotary drive device 4 can cooperate to drive the mounting disc 1 to rotate to complete the grinding and polishing of the blank.

Claims

1. A device for assisting a metallographic polishing machine for micro-scale machining of parts, characterized in that: The device comprises a mounting disc (1), an adjusting ring (3), a rotary driving device (4) and a position adjusting mechanism (5), wherein the rotary driving device (4) is adjusted in position by the position adjusting mechanism (5), the power shaft end of the lower side of the rotary driving device (4) is fixedly connected with the middle part of the mounting disc (1), the mounting disc (1) is provided with mounting holes and pressing mechanisms (2) staggered along the circumferential direction, each adjusting ring (3) is arranged in the corresponding mounting hole, and the middle part of the adjusting ring (3) is provided with a blank accommodating hole (302), the pressing mechanism (2) is provided with a pressure plate (201) which can be lifted and lowered, the upper side of the pressure plate (201) is provided with a counterweight guide column (2012), the counterweight guide column (2012) is sleeved with a counterweight disc (203), and the blanks are respectively placed in the corresponding blank accommodating holes (302) and are pressed from the upper side by the pressure plate (201) in the corresponding pressing mechanism (2).

2. The auxiliary device for metallographic polishing and grinding machine suitable for micro-sized machining parts according to claim 1, characterized in that: The upper end of the mounting hole of the mounting disc (1) is provided with a limiting stop, and the upper end of the adjusting ring (3) is provided with a limiting flange (301) matched with the limiting stop.

3. The auxiliary device for metallographic polishing and grinding machine suitable for micro-sized machining parts according to claim 1, characterized in that: The pressing mechanism (2) comprises a swingable rocker assembly (202), and the lower end of the rocker assembly (202) is arranged on the mounting disc (1), and the upper end is fixedly connected with the pressure plate (201), and the lower side of the pressure plate (201) is provided with a pressure head (2011).

4. The auxiliary device for metallographic polishing and grinding machine suitable for micro-sized machining parts according to claim 3, characterized in that: The rocker assembly (202) comprises a movable rocker seat (2023), a rocker (2022) and a fixed rocker seat (2021), wherein the fixed rocker seat (2021) is fixedly arranged on the mounting disc (1), the lower end of each rocker (2022) is hinged with the fixed rocker seat (2021), the upper end is hinged with the movable rocker seat (2023), and the movable rocker seat (2023) is fixedly connected with the horizontally arranged pressure plate (201).

5. The apparatus according to claim 1, wherein: The position adjusting mechanism (5) comprises a base (505), a longitudinal guide shaft (504), a longitudinal adjusting seat (503), a transverse adjusting shaft (502) and an adjusting connecting seat (501), wherein the lower end of the longitudinal guide shaft (504) is fixedly arranged on the base (505), the longitudinal adjusting seat (503) is provided with a first through hole sleeved on the longitudinal guide shaft (504) on one side, and is provided with a second through hole sleeved on the transverse adjusting shaft (502) on the other side, the outer side of the first through hole is provided with a first locking bolt (5032), the outer side of the second through hole is provided with a second locking bolt (5031), the transverse adjusting shaft (502) is provided with an adjusting connecting seat (501) at the end, and the adjusting connecting seat (501) is connected with the driving connecting seat (401) arranged on one side of the rotary driving device (4) through a connecting locking bolt (402).

6. The auxiliary device for metallographic polishing and grinding machine suitable for micro-sized machining parts according to claim 5, characterized in that: Scale lines are arranged on the longitudinal guide shaft (504) and the transverse adjusting shaft (502).

7. The auxiliary device for metallographic polishing and grinding machine suitable for micro-sized machining parts according to claim 5, characterized in that: The rotary driving device (4) is an electric motor, and the base (505) is provided with a control knob (5052) for controlling the start and stop of the electric motor.

8. The auxiliary device for metallographic polishing and grinding machine suitable for micro-sized machining parts according to claim 5, characterized in that: The rotary driving device (4) is a rotary handle.

9. The auxiliary device for metallographic polishing and grinding machine suitable for micro-sized machining parts according to claim 5, characterized in that: The base (505) is provided with a mounting seat (5051), and the lower end of the longitudinal guide shaft (504) is fixed in the mounting seat (5051).

10. The auxiliary device for metallographic polishing and grinding machine suitable for micro-sized machining parts according to claim 1, characterized in that: In the plan view, the mounting disc (1) is tangent to the polishing disc (601) on the metallographic polishing machine (6), and a processing gap of 3-5 mm is reserved between the mounting disc (1) and the polishing disc (601) in the height direction.

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