CN210360803U

CN210360803U - Irregular metallographic specimen polishing clamp

Info

Publication number: CN210360803U
Application number: CN201920892230.1U
Authority: CN
Inventors: 韩磊; 杨峰; 李开创; 王丰; 邹庆
Original assignee: Xuzhou University of Technology
Current assignee: Xuzhou University of Technology
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-04-21
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses an irregular metallographic specimen polishing clamp, including inside and outside tooth screw rod, supplementary board, inside and outside slide, gripper jaw grip. Within the spout is arranged in to the slide, can realize the supplementary centre gripping to the arbitrary angle direction of sample according to sample shape angle regulation, open two holes on the inside and outside slide, a hole is by short bolted connection, and another hole is by long bolted connection to radial length regulatory function has, the utility model discloses simple structure, the cost is lower, is applicable to various shape samples, and the outer tooth part of inside and outside tooth screw rod is responsible for the sideslip volume of adjusting whole clamping device, and interior tooth part realizes the more accurate regulation to the splint position with the cooperation of interior screw rod to the centre gripping work to many sizes sample is realized, and the above-mentioned inside and outside slide jointly uses with the regulation of above-mentioned screw rod to sideslip direction to the regulation of angle direction, has realized the grip function to many sizes, many shapes sample.

Description

Irregular metallographic specimen polishing clamp

Technical Field

The utility model relates to an irregular metallographic specimen polishing clamp belongs to machining technical field.

Background

Polishing refers to a process of reducing the roughness of a workpiece surface by mechanical, chemical, or electrochemical actions to obtain a bright, flat surface. The method is to carry out modification processing on the surface of a workpiece by using a polishing tool and abrasive particles or other polishing media. The laboratory is often regarded as polishing tool with polishing wheel, and the centrifugal force that produces when polishing wheel high-speed rotation is unsafe not using anchor clamps, and polishing anchor clamps develop from this, and present domestic outer mainly relates to anchor clamps to the rule set appearance, like the rectangle, circular etc. lacks the research to complicated appearance anchor clamps, the utility model discloses design anchor clamps to the present condition is not enough.

SUMMERY OF THE UTILITY MODEL

To the problem that above-mentioned prior art exists, the utility model provides an irregular metallographic specimen polishing clamp provides one kind and is applicable to multiple shape, simple structure's polishing clamp.

In order to realize the purpose, the utility model discloses a technical scheme is: an irregular metallographic specimen polishing clamp comprises an inner and outer thread screw, an auxiliary holding plate, an inner sliding plate, an outer sliding plate, a clamping plate, a section bar, a T-shaped groove, a right clamping jaw, a left clamping jaw and a shell;

the shell is connected with the auxiliary holding plate through a bolt; the shell is a square hollow cylinder; the section bar is a rectangular solid cylinder; the number of the section bars is two, the two section bars are uniformly and symmetrically arranged on the shell, and two ends of each section bar are respectively connected to the cylinders on two symmetrical sides of the shell and are connected through fastening bolts; the bottom of the section bar is provided with a T-shaped groove; the section bar is connected with the cylindrical head bolt through a T-shaped groove;

the right clamping jaw and the left clamping jaw are respectively connected with the section bar through a cylindrical head bolt; the right clamping claw and the left clamping claw are symmetrically distributed and are integrally semicircular, two arc-shaped U-shaped grooves are symmetrically distributed on two sides of the right clamping claw and two arc-shaped U-shaped grooves are symmetrically distributed on two sides of the left clamping claw, and threaded holes connected with the inner and outer threaded rods are formed in the centers of the right clamping claw and the left clamping claw; the upper surface of the U-shaped groove is provided with upper sliding chutes at the inner side and the outer side of the right clamping jaw and the left clamping jaw; the lower surface of the U-shaped groove is provided with lower sliding grooves at the inner side and the outer side of the right clamping jaw and the left clamping jaw; an inner sliding plate is connected between the upper sliding chute and the lower sliding chute which are close to the inner sides of the right clamping jaw and the left clamping jaw, and an outer sliding plate is connected between the upper sliding chute and the lower sliding chute which are close to the outer sides of the right clamping jaw and the left clamping jaw; a short bolt and a long bolt are connected between the inner sliding plate and the outer sliding plate from top to bottom; the end of the short bolt close to the inner side is provided with a nut.

Furthermore, the left clamping claw is connected with the internal thread column in an interference fit manner; the internal thread column is connected with the short internal screw rod through threads; the end part of the short inner screw rod close to the inner side is in clearance fit connection with the clamping plate; the end close to the outer side of the short inner screw is connected with the left tightening handle in an interference fit manner.

Furthermore, the right clamping claw is connected with the inner and outer thread screw rods in a clearance fit manner; the inner and outer threaded rods are in threaded connection with the long inner threaded rod, and are in interference fit connection with the right-handed tightening handle a; the long inner screw is connected with the right-handed tightening handle b in an interference fit manner; the long inner screw is connected with the clamping plate in a clearance fit manner.

Furthermore, the left clamping claw and the shell are fixedly connected through an internal thread column, and the short internal screw rod is connected with the clamping plate through clearance fit.

Furthermore, the right clamping claw and the shell are movably connected with each other by an inner and outer thread screw rod penetrating through one end of the shell.

And the test sample is placed between the right clamping jaw and the left clamping jaw and is tightly connected by a long bolt and a clamping plate between the inner sliding plate and the outer sliding plate.

The utility model has the advantages that: the utility model discloses mechanical structure is simple, and is with low costs, convenient operation, the unique design of clamping jaw for can adjust according to the metallographic specimen of various shapes is nimble, and the accuracy nature of size adjustment is guaranteed in the separately use of the long internal screw rod of interior outer screw rod cooperation simultaneously.

The utility model discloses specially for avoiding the clamping jaw not horizontal and designed the T-slot above two cylinder head bolted connection section bars to two cylinder head bolts are about gripper jaw mid-plane symmetry, make the load that anchor clamps bore when work balanced on both sides.

Drawings

FIG. 1 is a schematic view of the overall assembly drawing structure of the present invention;

FIG. 2 is a schematic top view of the present invention;

FIG. 3 is a schematic structural view of a T-shaped groove of the present invention;

FIG. 4 is a structural view of the clamping jaw and the sliding groove of the present invention;

fig. 5 is a working principle diagram of the present invention.

In the figure: 1. the device comprises a left screwing handle, 2, a short inner screw rod, 3, a shell, 4, an auxiliary holding plate, 5, a long bolt, 6, a short bolt, 7, a section bar, 8, an inner and outer threaded rod, 9, a right screwing handle a, 10, a long inner screw rod, 11, a right screwing handle b, 12, a clamping plate, 13, an inner threaded column, 14, a bolt, 15, a fastening bolt, 16, a lower chute, 17, an upper chute, 18, a T-shaped groove, 19, a cylindrical head bolt, 20, a sample, 21, an inner sliding plate, 22, a right clamping jaw, 23, a left clamping jaw, 24 and an outer sliding plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail through the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention.

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the irregular metallographic specimen polishing clamp comprises an inner and outer threaded rod 8, an auxiliary holding plate 4, an inner sliding plate 21, an outer sliding plate 24, a clamping plate 12, a profile 7, a T-shaped groove 18, a right clamping jaw 22, a left clamping jaw 23 and a shell 3;

the shell 3 is connected with the auxiliary holding plate 4 through a bolt 14; the shell 3 is a square hollow cylinder; the section bar 7 is a rectangular solid cylinder; the number of the section bars 7 is two, the two section bars are uniformly and symmetrically arranged on the shell 3, and two ends of each section bar 7 are respectively connected to the columns on two symmetrical edges of the shell 3 and are connected through fastening bolts 15; the bottom of the section bar 7 is provided with a T-shaped groove 18; the section bar 7 is connected with a cylindrical head bolt 19 through a T-shaped groove 18;

the right clamping jaw 22 and the left clamping jaw 23 are respectively connected with the section bar 7 through a cylindrical head bolt 19; the right clamping claw 22 and the left clamping claw 23 are symmetrically distributed and are in a semicircular shape as a whole, two arc-shaped U-shaped grooves are symmetrically distributed on two sides of the right clamping claw 22 and the left clamping claw 23, and threaded holes connected with the inner and outer threaded rods 8 are formed in the centers of the two arc-shaped U-shaped grooves; the upper surface of the U-shaped groove is provided with upper sliding grooves 17 at the inner side and the outer side of the right clamping claw 22 and the left clamping claw 23; the lower surface of the U-shaped groove is provided with lower sliding grooves 16 at the inner side and the outer side of the right clamping claw 22 and the left clamping claw 23; an inner sliding plate 21 is connected between the upper sliding groove 17 and the lower sliding groove 16 which are close to the inner sides of the right clamping claw 22 and the left clamping claw 23, and an outer sliding plate 24 is connected between the upper sliding groove 17 and the lower sliding groove 16 which are close to the outer sides of the right clamping claw 22 and the left clamping claw 23; a short bolt 6 and a long bolt 5 are connected between the inner sliding plate 21 and the outer sliding plate 24 from top to bottom; the end of the short bolt 6 close to the inner side is provided with a nut.

The left clamping claw 23 is connected with the internal thread column 13 in an interference fit manner; the internal thread column 13 is connected with the short internal screw rod 2 through threads; the end part of the short inner screw 2 close to the inner side is in clearance fit connection with the clamping plate 12; the end close to the outer side of the short inner screw 2 is connected with the left tightening handle 1 in an interference fit manner.

The right clamping claw 22 is connected with the inner and outer thread screw 8 in a clearance fit manner; the inner and outer threaded rods 8 are in threaded connection with a long inner threaded rod 10, and the inner and outer threaded rods 8 are in interference fit connection with a right-handed tightening handle a 9; the long inner screw 10 is connected with a right-handed tightening handle b11 in an interference fit manner; the long inner screw 10 is connected with the clamping plate 12 through clearance fit.

The left clamping claw 23 and the shell 3 are fixedly connected together through an internal thread column 13, and the short inner screw 2 and the clamping plate 12 are connected in a clearance fit manner.

The right clamping claw 22 and the shell 3 are movably connected with the shell 3 by an inner and outer thread screw 8 penetrating through one end of the shell 3.

The test sample 20 is placed between a right clamping jaw 22 and a left clamping jaw 23 and is tightly connected with a long bolt 5 and a clamping plate 12 which are positioned between an inner sliding plate 21 and an outer sliding plate 24.

The utility model provides an irregular metallographic specimen polishing clamp, right gripper jaw 22 appearance adopts semicircular unique design, a screw hole is opened at semicircular side face center, the screw hole is connected through screw-thread fit with inside and outside tooth screw rod 8, adopt inside and outside tooth screw rod 8 can use the sideslip function of grip block 12 and the sideslip function of right gripper jaw 22 separately, left gripper jaw 23 adopts semicircular unique design the same with grip block 1, a through-hole is opened at semicircular side face center, the through-hole is connected through interference fit with interior screw post 13, a hole is respectively opened at the center of the latter half of shell 3 both sides face, the through-hole is opened on the left side face, the internal thread hole is opened on the right side face, the through-hole is connected through interference fit with interior screw post 13 on the left side, the internal thread hole on the right side is connected through screw-thread fit with inside and outside tooth screw rod 8, the shell 3 is connected with the section bar 7 through a fastening bolt 15, a T-shaped groove 18 is formed in the section bar 7, the T-shaped groove 18 is connected with a right clamping claw 22 through a cylindrical head bolt 19, the cylindrical head bolt 19 can slide freely in the T-shaped groove, so that the transverse moving function of the inner and outer thread screw 8 is matched, the main function of the cylindrical head bolt 19 is to maintain the vertical height of the right clamping claw 22, the left clamping claw 23 is connected with the T-shaped groove 18 through the cylindrical head bolt 15, the cylindrical head bolt 15 connected with the left clamping claw 23 does not have the function of sliding freely in the T-shaped groove 18, the cylindrical head is only responsible for fixing the vertical height of the left clamping claw 23, the transverse moving and clamping of a sample are realized by the right clamping claw 22, and the shell 3 is connected with the auxiliary holding plate 4 through a bolt 14.

As shown in fig. 3 to 4, the long inner screw 10 is in threaded connection with the inner and outer threaded screws 8, the long inner screw 10 is in clearance fit connection with the clamping plate 12, when the long inner screw 10 rotates, the clamping plate 12 does not rotate with the rotation of the long inner screw 10, the short inner screw 2 is in threaded connection with the inner threaded column 13, the short inner screw 2 is in clearance fit connection with the clamping plate 12, and when the short inner screw 2 rotates, the clamping plate 12 does not rotate with the short inner screw 2. The inner sliding plate 21 and the right clamping claw 22 are connected with the lower sliding groove 16 through the upper sliding groove 17, and the outer sliding plate 24 is connected with the right clamping claw 22 according to the same principle of the inner sliding plate.

As shown in fig. 5, the working principle is as follows: the utility model discloses mainly press from both sides tightly and the centre gripping of multi-angle regulatory function realization to metallographic specimen with the sideslip, the sideslip function is realized by interior outer tooth screw rod 8, long interior screw rod 10, short interior screw rod 2, cylinder head bolt 19, section bar 7, T-slot 18, the tight handle of left-handed rotation 1, the tight handle of right-handed rotation a9 and the tight handle of right-handed rotation b11, when the right-hand member carried out the sideslip regulation, the earlier rotation right side is screwed handle a9 and is driven the position that interior outer tooth screw rod 8 adjusted whole right gripper jaw 22, after adjusting overall position, the tight handle of rotation right-handed rotation b11 drives long interior screw rod 10 again, long interior screw rod 10 drives grip block 12 again and carries out the accurate regulation to. When the left end is adjusted transversely, the left screwing handle 1 is firstly rotated to drive the short inner screw rod 2, and the short inner screw rod 2 drives the clamping plate 12 to clamp the sample;

the multi-angle adjusting function is realized by inner slide 21, outer slide 24, upper chute 17, lower chute 16, short bolt 6 and long bolt 5, the realization of multi-angle adjusting function needs three steps to realize, first step: matching the relative positions of the inner sliding plate 21 and the outer sliding plate 24 with the upper chute 17 and the lower chute 16, and adjusting the positions of the inner sliding plate 21 and the outer sliding plate 24 along the chutes according to the clamping requirements of the sample; the second step is that: connecting the short bolts with the threaded holes on the upper half parts of the outer slide plates 24 through the inner slide plates 21, screwing the short bolts, and fixing the inner slide plates 21 and the outer slide plates 24 on the inner sides of the upper slide grooves 17 and the lower slide grooves 16, and the third step: the long bolt 5 is connected with the threaded hole of the lower half part of the outer sliding plate 24 through the inner sliding plate 21, and the rotation number of the long bolt 5 II is adjusted according to the size of the sample, so that the sample is clamped.

When the regular sample is clamped by the working principle, the angles of the clamping plate 12, the inner sliding plate 21 and the outer sliding plate 24 are adjusted according to the normal direction of the outer surface of the regular set, so that the sample is clamped.

When an irregular sample is clamped, the angles of the clamping plate 12, the inner sliding plate 21 and the outer sliding plate 24 are adjusted according to the normal direction of a tangent line of a reasonable clamping point, and the sample is clamped.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the present invention.

Claims

1. An irregular metallographic specimen polishing clamp is characterized by comprising an inner and outer threaded rod (8), an auxiliary holding plate (4), an inner sliding plate (21), an outer sliding plate (24), a clamping plate (12), a section bar (7), a T-shaped groove (18), a right clamping jaw (22), a left clamping jaw (23) and a shell (3); the shell (3) is connected with the auxiliary holding plate (4) through a bolt (14); the shell (3) is a square hollow cylinder; the section bar (7) is a rectangular solid cylinder; the number of the section bars (7) is two, the two section bars are uniformly and symmetrically arranged on the shell (3), and two ends of each section bar (7) are respectively connected to the cylinders on two symmetrical sides of the shell (3) and are connected through fastening bolts (15); the bottom of the section bar (7) is provided with a T-shaped groove (18); the section bar (7) is connected with a cylindrical head bolt (19) through a T-shaped groove (18);

the right clamping jaw (22) and the left clamping jaw (23) are respectively connected with the section bar (7) through a cylindrical head bolt (19); the right clamping claw (22) and the left clamping claw (23) are symmetrically distributed and are integrally semicircular, two arc-shaped U-shaped grooves are symmetrically distributed on two sides of the right clamping claw (22) and the left clamping claw (23), and threaded holes connected with the inner and outer threaded screws (8) are formed in the centers of the two arc-shaped U-shaped grooves; the upper surface of the U-shaped groove is positioned at the inner side and the outer side of the right clamping claw (22) and the left clamping claw (23) and is provided with an upper sliding chute (17); the lower surface of the U-shaped groove is positioned at the inner side and the outer side of the right clamping claw (22) and the left clamping claw (23) and is provided with a lower sliding chute (16); an inner sliding plate (21) is connected between the upper sliding chute (17) and the lower sliding chute (16) which are close to the inner sides of the right clamping jaw (22) and the left clamping jaw (23), and an outer sliding plate (24) is connected between the upper sliding chute (17) and the lower sliding chute (16) which are close to the outer sides of the right clamping jaw (22) and the left clamping jaw (23); a short bolt (6) and a long bolt (5) are connected between the inner sliding plate (21) and the outer sliding plate (24) from top to bottom; the end of the short bolt (6) close to the inner side is provided with a nut.

2. The polishing clamp for the irregular metallographic specimen according to claim 1, wherein: the left clamping claw (23) is connected with the internal thread column (13) in an interference fit manner; the internal thread column (13) is connected with the short internal screw rod (2) through threads; the end part of the short inner screw rod (2) close to the inner side is in clearance fit connection with the clamping plate (12); the end close to the outer side of the short inner screw (2) is connected with the left-handed tightening handle (1) in an interference fit manner.

3. The polishing clamp for the irregular metallographic specimen according to claim 1, wherein: the right clamping claw (22) is connected with the inner and outer thread screw rods (8) in a clearance fit manner; the inner and outer threaded rods (8) are in threaded connection with the long inner threaded rod (10), and the inner and outer threaded rods (8) are in interference fit connection with the right-handed tightening handle a (9); the long inner screw (10) is connected with a right-handed tightening handle b (11) in an interference fit manner; the long inner screw (10) is connected with the clamping plate (12) in a clearance fit manner.

4. The polishing clamp for the irregular metallographic specimen according to claim 1, wherein: the left clamping claw (23) and the shell (3) are fixedly connected through an internal thread column (13), and the short internal screw rod (2) is connected with the clamping plate (12) in a clearance fit mode.

5. The polishing clamp for the irregular metallographic specimen according to claim 1, wherein: the right clamping claw (22) and the shell (3) are movably connected with the shell (3) through a threaded hole at one end of the shell (3) by an inner and outer thread screw (8).

6. An irregular metallographic specimen polishing jig according to claim 1, further comprising a specimen (20), characterized in that: the test sample (20) is placed between the right clamping jaw (22) and the left clamping jaw (23) and is tightly connected by a long bolt (5) and a clamping plate (12) which are positioned between the inner sliding plate (21) and the outer sliding plate (24).