CN215788815U

CN215788815U - Metallographic phase grinding and polishing clamp holder

Info

Publication number: CN215788815U
Application number: CN202121674670.3U
Authority: CN
Inventors: 梁晨希; 卢春林; 唐波; 云磊
Original assignee: FAW Volkswagen Automotive Co Ltd
Current assignee: FAW Volkswagen Automotive Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-02-11
Anticipated expiration: 2031-07-22

Abstract

The utility model provides a holder (100) is thrown to metallography grinding, comprises clamping part and connecting portion, and clamping part includes clamping plate (10) of horizontal arrangement, fixes the sleeve portion on clamping plate (10) upper surface and fixes the baffle portion on clamping plate (10) lower surface, and the sleeve portion includes sleeve (3), has opened the through-hole on clamping plate (10) and on the upper end wall of sleeve (3) respectively, and a columniform pull rod (2) pass respectively on clamping plate (10) and on the through-hole on the upper end wall of sleeve (3) the middle part of pull rod (2) has a shaft shoulder (16) the upper surface of shaft shoulder (16) with between the lower surface of the upper end wall of sleeve (3) the cover is equipped with a precompressed pressure spring (8) on pull rod (2). The metallographic phase grinding and polishing clamp provided by the utility model is quick to install, safe and reliable to use and strong in applicability.

Description

Metallographic phase grinding and polishing clamp holder

Technical Field

The utility model relates to the field of metallographic analysis, in particular to a metallographic grinding and polishing clamp for laboratory metallographic analysis.

Background

When a metallographic sample is prepared in a laboratory, the surface of a metal needs to be polished to a mirror surface degree, then the metal is corroded by acid and alkali, a metallographic microstructure is observed, and the material performance is analyzed.

The principle of laboratory metallography is polished and is utilized the sample of anchor clamps fixed, utilizes rotatory sand paper dish to polish the sample. The holder needs to have a stable, compact structure while applying pressure on the sample to bring the sample into close contact with the sandpaper.

The original grinding and polishing clamp is only suitable for samples with the size smaller than phi 40mm, and sample blocks with larger sizes cannot be ground. The large sample block can be polished only by hand, polishing is not easy to be uniform, and certain safety risk exists.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a novel metallographic grinding and polishing clamp.

The metallographic grinding and polishing clamp comprises a clamping part and a connecting part, wherein the clamping part comprises a clamping plate arranged horizontally, a sleeve part fixed on the upper surface of the clamping plate and a baffle part fixed on the lower surface of the clamping plate, the sleeve part comprises a sleeve with the axis along the vertical direction, through holes are respectively formed in the upper end wall of the clamping plate and the upper end wall of the sleeve, a cylindrical pull rod respectively penetrates through the through holes in the upper end wall of the clamping plate and the upper end wall of the sleeve, a shaft shoulder is arranged in the middle of the pull rod, the outer diameter of the shaft shoulder is in clearance fit with the inner diameter of the sleeve, a pre-compacted compression spring is sleeved on the pull rod between the upper surface of the shaft shoulder and the lower surface of the upper end wall of the sleeve, and under the pressure action of the compression spring, the lower surface of the shaft shoulder is abutted against the upper surface of the clamping plate, baffle portion includes the baffle along vertical direction, coupling part is including being located the connecting plate that the level of clamping board one side was arranged, the connecting plate with be equipped with the cab apron between the clamping board, cross cab apron and connecting plate and fix in proper order be fixed with a quick-operation joint on the upper surface of connecting plate, this quick-operation joint can with the fixed epaxial quick-operation joint seat joint of fixed on the automatic machine of throwing that grinds of metallography, make the holder is thrown in the metallography grinding can be fixed fast on the automatic machine of throwing that grinds of metallography.

The metallographic phase grinding and polishing clamp disclosed by the utility model is characterized in that the cross section projection shape of the inner side of the baffle is V-shaped.

The metallographic phase grinding and polishing clamp comprises a clamping plate, a sleeve part and a base, wherein the sleeve part is arranged on the clamping plate, and the base is arranged below the sleeve part and fixed on the clamping plate through base screws.

The metallographic grinding and polishing clamp comprises a clamping plate, a transition plate and a connecting plate which are fixed together through connecting screws.

The metallographic grinding and polishing clamp comprises a connecting plate, a quick connector and a clamp body.

The metallographic grinding and polishing clamp provided by the utility model is characterized in that a pull ring is arranged at the top of the pull rod.

The metallographic grinding and polishing clamp comprises a clamping plate, a baffle plate and a grinding and polishing clamp body, wherein the clamping plate is provided with two parallel through grooves, the baffle plate is fixed on the lower surface of the clamping plate through adjusting screws respectively penetrating through the through grooves, and the position of the baffle plate relative to the clamping plate can be adjusted by adjusting the positions of the adjusting screws in the through grooves.

The metallographic phase grinding and polishing clamp provided by the utility model is quick to install, safe and reliable to use and strong in applicability.

Drawings

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

FIG. 1 is a front view of one embodiment of the metallographic phase polishing holder according to the utility model.

Fig. 2 is a cross-sectional view of the embodiment shown in fig. 1.

Fig. 3 is a top view of the embodiment shown in fig. 1.

Fig. 4 is a partial cross-sectional view taken at a-a in fig. 3.

Fig. 5 is a bottom view of the embodiment of fig. 1.

Detailed Description

See fig. 1-5.

The metallographic phase polishing holder 100 is constituted by a clamping portion and a connecting portion.

The clamping section includes a horizontally arranged clamping plate 10, a sleeve portion fixed on an upper surface of the clamping plate 10, and a baffle portion fixed on a lower surface of the clamping plate 10.

The sleeve portion comprises a sleeve 3 with its axis in the vertical direction, and a base 13 below the sleeve 3, the base 13 being fixed to the clamping plate 10 by means of base screws 14. Through holes are respectively formed in the clamping plate 10 and the upper end wall of the sleeve 3, a cylindrical pull rod 2 respectively penetrates through the through holes in the clamping plate 10 and the upper end wall of the sleeve 3, a pull ring 1 is arranged at the top of the pull rod 2, a shaft shoulder 16 is arranged in the middle of the pull rod 2, the outer diameter of the shaft shoulder 16 is in clearance fit with the inner diameter of the sleeve 3, a pre-compressed compression spring 8 is sleeved on the pull rod 2 between the upper surface of the shaft shoulder 16 and the lower surface of the upper end wall of the sleeve 3, and the lower surface of the shaft shoulder 16 abuts against the upper surface of the clamping plate 10 under the pressure action of the compression spring 8.

Baffle portion includes baffle 5 along vertical direction, and the section projection shape of baffle 5 inboard is the V-arrangement, makes the metallography work piece of treating the polish can firmly support against baffle 5. Two parallel through grooves 15 are formed in the clamping plate 10, and the baffle plate 5 is fixed on the lower surface of the clamping plate 10 through adjusting screws 4 respectively penetrating through the through grooves 15. By adjusting the position of the adjusting screw 4 in the through slot 15, the position of the fence 5 relative to the clamping plate 10 can be adjusted.

The connecting part comprises a connecting plate 12 which is horizontally arranged and is positioned on one side of the clamping plate 10, a transition plate 11 is arranged between the connecting plate 12 and the clamping plate 10, the transition plate 11 and the connecting plate 12 are sequentially fixed together through a connecting screw 9.

A quick coupling 6 is fixed on the upper surface of the connecting plate 12 through a coupling screw 7, and the quick coupling 6 can be clamped with a quick coupling seat on a fixed shaft of the metallographic automatic polishing machine, so that the metallographic automatic polishing machine can be quickly fixed with the metallographic polishing clamp 100.

In operation, a worker firstly uses the steel balls to match with the clamping grooves (not shown in the figure) to clamp the quick coupling 6 on the metallographic grinding and polishing clamp 100 with the quick coupling seat on the fixed shaft of the metallographic automatic grinding and polishing machine, so that the metallographic grinding and polishing clamp 100 is quickly fixed on the fixed shaft of the metallographic automatic grinding and polishing machine.

Then, the operator uses a tool to unscrew the adjusting screws 4 in the through grooves 15 of the clamping plate 10, respectively, and adjusts their positions in the through grooves 15 according to the size and shape of the metallographic work piece to be polished, and retightens them to fix the baffle 5 in place under the clamping plate 10.

Then, the operator holds the pull ring 1 and pulls it upward, so that the pull rod 2 is lifted, and the shoulder 16 on the pull rod 2 further compresses the compression spring 8. The lifting of the part of the pull rod 2 below the shaft shoulder 16 makes room for the metallographic workpiece, at the moment, an operator places the metallographic workpiece to be polished on the circular sand paper disc tightly close to the baffle 5, and then slowly puts down the pull rod 1, so that the lower end face of the pull rod 2 presses the metallographic workpiece to be polished on the sand paper disc under the pressure action of the compression spring 8. After the abrasive paper disc rotates, the metallographic workpiece abuts against the baffle 5 with the V-shaped cross section under the action of friction force of the abrasive paper and is stabilized in the baffle, and grinding and polishing operation of the end face is performed.

When the polishing operation is completed, the rotation of the sand paper tray is first stopped. Then, an operator holds the pull ring 1 by hand, pulls up the pull rod 2, takes out the metallographic workpiece, holds the pull ring 1 by hand, puts down the pull rod 2, and releases the pull ring 1. Then, the spring is pulled up, the steel balls are separated from the clamping grooves, the quick joint 6 can be separated from the quick joint seat on the fixed shaft of the metallographic automatic polishing machine, and the metallographic polishing clamp 100 is detached from the metallographic automatic polishing machine.

The metallographic grinding and polishing clamp holder is quick to install, safe and reliable to use and high in applicability.

Claims

1. The utility model provides a holder (100) is thrown to metallography grinding, characterized in that, this holder (100) is thrown to metallography grinding and polishing comprises clamping part and connecting portion, clamping part includes clamping plate (10) of horizontal arrangement, fixes sleeve portion on clamping plate (10) upper surface and fix baffle portion on clamping plate (10) lower surface, sleeve portion includes axis along vertical direction sleeve (3) on clamping plate (10) with open the through-hole on the upper end wall of sleeve (3) respectively, a columniform pull rod (2) pass respectively on clamping plate (10) with through-hole on the upper end wall of sleeve (3) the middle part of pull rod (2) has a shaft shoulder (16), the external diameter of shaft shoulder (16) with be clearance fit between the internal diameter of sleeve (3) the upper surface of shaft shoulder (16) with between the lower surface of the upper end wall of sleeve (3) the cover is equipped with on pull rod (2) is equipped with A precompressed compression spring (8) the pressure effect of compression spring (8) is down, the lower surface of shaft shoulder (16) supports and leans on the upper surface of clamping plate (10), baffle portion includes baffle (5) along vertical direction, coupling part is including being located connecting plate (12) that the level of clamping plate (10) one side was arranged, connecting plate (12) with be equipped with cab apron (11) between clamping plate (10), cab apron (11) and connecting plate (12) are fixed in proper order be fixed with a quick-operation joint (6) on the upper surface of connecting plate (12), this quick-operation joint (6) can polish quick-operation joint seat joint on the fixed axle of machine with the automatic mill of metallography, make holder (100) is polished to the metallography can be fixed on the automatic mill fast.

2. A metallographical grinding and polishing holder (100) according to claim 1, characterized in that the cross-sectional projection shape of the inside of the baffle (5) is V-shaped.

3. Metallographical lapping and polishing holder (100) according to claim 1, characterized in that the sleeve part further comprises a base (13) below the sleeve (3), the base (13) being fixed to the clamping plate (10) by means of a base screw (14).

4. The metallic phase grinding and polishing holder (100) according to claim 1, wherein the clamping plate (10), the transition plate (11) and the connecting plate (12) are fixed together by a connecting screw (9).

5. A metallographic grinding and polishing holder (100) according to claim 1, characterized in that said quick coupling (6) is fixed on said connection plate (12) by means of coupling screws (7).

6. A metallographic abrasive polishing holder (100) according to any one of claims 1 to 5, characterized in that a pull ring (1) is provided on top of said pull rod (2).

7. A metallographical grinding and polishing holder (100) according to claim 6, characterized in that two parallel through slots (15) are opened on the clamping plate (10), the baffle (5) is fixed on the lower surface of the clamping plate (10) by adjusting screws (4) passing through the through slots (15), respectively, and the position of the baffle (5) relative to the clamping plate (10) is adjustable by adjusting the position of the adjusting screws (4) in the through slots (15).