CN211740649U

CN211740649U - Metallographic specimen cutting jig

Info

Publication number: CN211740649U
Application number: CN202020056343.0U
Authority: CN
Inventors: 徐卫龙; 徐啸
Original assignee: Suzhou Xinsu Physical And Chemical Testing Service Co ltd
Current assignee: Suzhou Xinsu Physical And Chemical Testing Service Co ltd
Priority date: 2020-01-11
Filing date: 2020-01-11
Publication date: 2020-10-23
Anticipated expiration: 2030-01-11

Abstract

The utility model relates to a metallographic specimen cutting fixture, which comprises a base, wherein the base is provided with a mounting hole, a positioning rod is inserted in the mounting hole, the base is provided with a fastening mechanism for fixing the position of the positioning rod, and the positioning rod comprises a positioning section inserted in the mounting hole, an adjusting section connected at the tail end of the positioning section and a fastening section connected at one end of the adjusting section, which is far away from the positioning section; one end of the abutting section, which is far away from the adjusting section, is hinged with a flexible strip, and the abutting section is hinged with the middle point of the flexible strip in the length direction; the coaxial cover of regulation section is equipped with the adjustable ring, all articulated between the both ends of adjustable ring and flexible strip have the connecting rod, be equipped with on the regulation section and be used for producing the retaining member in order to support tight adjustable ring along locating lever length direction effort. The utility model discloses a metallographic specimen cutting jig not only is applicable to the side and is the cutting location of planar metallographic specimen, is applicable to the metallographic specimen cutting location of side arcwall face equally, has convenient to use, the good advantage of suitability.

Description

Metallographic specimen cutting jig

Technical Field

The utility model belongs to the technical field of test appurtenance's technique and specifically relates to a metallographic specimen cutting jig is related to.

Background

The cutting of the metallographic specimen is the first step of metallographic structure analysis, and when a specimen with a specific size and a check surface at a specific position need to be obtained, the accuracy of positioning and cutting is particularly critical and important. When a common cutting machine is used for cutting the metallographic specimen, the metallographic specimen is positioned by a clamp on the cutting machine, so that the accurate positioning of the metallographic specimen cannot be realized, the specific size of the metallographic specimen is difficult to ensure, and the requirements of large-batch detection and metallographic structure analysis cannot be met.

Therefore, the chinese patent with the publication number CN201527357U in the prior art discloses a metallographic specimen cutting and positioning device, which comprises a fixed base and a positioning screw rod, wherein the fixed base is provided with a base mounting hole and a positioning screw hole, and the positioning screw rod is mounted on the fixed base through the positioning screw hole. This metallographic specimen cutting positioner installs behind cutting machine fixture mounting groove, through the rotational positioning screw rod, the distance between adjustable positioning screw rod tip and the cutting piece to the length of the metallographic specimen of the required cutting of adjustment can make the metallographic specimen location accurate, and no drift phenomenon takes place, can be used to various metallographic specimen cutting machines, is fit for the cutting of big batch sample, simple structure, low in production cost, easy to maintain and maintenance.

The above prior art solutions have the following drawbacks: the positioning of the metallographic specimen depends on the abutting of the end part of the positioning screw rod and the side surface of the metallographic specimen, and the positioning screw rod is only suitable for positioning the metallographic specimen with the side surface being a plane. When the side of metallographic specimen is the cambered surface, then positioning screw is little with metallographic specimen side area of contact, is difficult to with metallographic specimen centre gripping location accuracy to the location demand when can't adapt to cylindrical etc. have the metallographic specimen cutting of cambered side. Thus, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a metallographic specimen cutting jig, it has that adaptability is good, can fix a position fixed advantage to multiple metallographic specimen.

The above object of the present invention can be achieved by the following technical solutions:

a metallographic specimen cutting clamp comprises a base, wherein a mounting hole is formed in the base, a positioning rod is inserted into the mounting hole, a fastening mechanism used for fixing the position of the positioning rod is arranged on the base, and the positioning rod comprises a positioning section inserted into the mounting hole, an adjusting section connected to the tail end of the positioning section and a pressing section connected to one end, far away from the positioning section, of the adjusting section; one end of the abutting section, which is far away from the adjusting section, is hinged with a flexible strip, and the abutting section is hinged with the middle point of the flexible strip in the length direction; the coaxial cover of regulation section is equipped with the adjustable ring, all articulated between the both ends of adjustable ring and flexible strip have the connecting rod, be equipped with on the regulation section and be used for producing the retaining member in order to support tight adjustable ring along locating lever length direction effort.

Through adopting above-mentioned technical scheme, adjust the position of locating lever at the mounting hole, with the help of fastening device with the locating lever locking, can make the locating lever support tight metallographic specimen, can satisfy the cutting location demand that conventional side is planar metallographic specimen. When the side face of the metallographic specimen to be cut is an arc-shaped face, firstly adjusting the position of the positioning rod to enable the middle point of the flexible strip to be tightly propped against the side face of the metallographic specimen; then, the adjusting ring slides along the length direction of the adjusting section, so that the flexible strip is tightly attached to the arc-shaped side face of the metallographic specimen, and the position of the adjusting ring is fixed by means of the locking piece, namely, the metallographic specimen on the arc-shaped side face is cut and positioned. Compare in conventional metallographic specimen cutting jig, the utility model discloses a metallographic specimen cutting jig not only is applicable to the side and is the cutting location of planar metallographic specimen, is applicable to the metallographic specimen cutting location of side arcwall face equally, has convenient to use, the good advantage of suitability.

Furthermore, the locking piece is a locking ring sleeved on the adjusting section, the locking ring is in threaded connection with the adjusting section, and the locking ring is arranged on one side, away from the flexible strip, of the adjusting ring.

Through adopting above-mentioned technical scheme, rotatory locking ring changes the locking ring position on adjusting the section, utilizes the locking ring to support tight adjustable ring, can make flexible strip closely laminate in the arc side of metallographic specimen, and it is firm to metallographic specimen fixed action.

Furthermore, a guide groove is formed in the adjusting section along the length direction of the positioning rod, and a guide block extending into the guide groove is arranged on the side wall of the inner circumference of the adjusting ring.

By adopting the technical scheme, the adjusting ring can only move along the length direction of the positioning rod, so that the position of the flexible strip is not easy to deflect.

Furthermore, a sliding block is sleeved on the abutting section, and a fastening piece for fixing the position of the sliding block is arranged on the sliding block.

Through adopting above-mentioned technical scheme, when needing to carry out fixed positioning for the metallographic specimen of plane to the side, remove the sliding block to the end of abutting against the tight section, with setting up with sliding block spare locking, can utilize the sliding block to play the supporting role in the dorsal part of flexible strip for when abutting against tightly and the metallographic specimen side, area of contact increases between flexible strip and the metallographic specimen side, be difficult for causing the metallographic specimen to warp or the pine to take off.

Further, the fastening piece is a fastening bolt inserted into the sliding block.

By adopting the technical scheme, after the sliding block is moved to a proper position, the fastening bolt is screwed.

Furthermore, the cross section of the abutting section is a regular polygon, and a plurality of fastening screw holes for inserting fastening bolts are distributed on the abutting section along the length direction of the positioning rod.

Through adopting above-mentioned technical scheme, the cross section of the section of supporting tightly sets up to regular polygon and makes the sliding block can not rotate along the axial and deflect, and rotatory fastening bolt is to inserting in fastening the screw hole during fixed sliding block, and is more firm to the fastening effect of sliding block for sliding block is difficult for not hard up in the cutting metallographic specimen process.

Further, the fastening mechanism comprises a positioning pin inserted into the base, and the bottom end of the positioning pin is inserted into the mounting hole; the positioning section is provided with a plurality of positioning holes for inserting positioning pins, and the positioning holes are distributed at equal intervals along the length direction of the positioning rods.

Through adopting above-mentioned technical scheme, extract the position that the locating pin can the pull adjusting positioning rod, can conveniently adjust to flexible strip and support tightly in metallographic specimen side. After the positioning rod is adjusted to a proper position, the positioning pin is inserted into the positioning hole, and the position of the positioning rod can be locked.

Furthermore, the cross section of the mounting hole is a regular polygon, and the shape of the cross section of the positioning section is matched with that of the cross section of the mounting hole.

Through adopting above-mentioned technical scheme, the difficult circumferential direction of locating lever causes flexible strip to deflect, and is better to metallographic specimen's centre gripping fixed action.

Furthermore, a limiting block is arranged at one end, far away from the flexible strip, of the positioning rod.

Through adopting above-mentioned technical scheme for the locating lever can not break away from the base, is difficult for causing cutting fixture's spare part to lose.

To sum up, the utility model discloses a following at least one useful technological effect:

1. the tail end of the positioning rod is hinged with the flexible strip, the adjusting ring and the locking piece are arranged on the adjusting section, and the connecting rod is hinged between the adjusting ring and the tail end of the flexible strip, so that the metallographic specimen cutting clamp is not only suitable for clamping and positioning a metallographic specimen with a plane side surface, but also suitable for clamping and positioning a metallographic specimen with an arc side surface;

2. the adjusting section is in threaded connection with a locking ring, and the locking ring is rotated to change the position of the locking ring on the adjusting section, so that the adjusting ring can be abutted and positioned;

3. support and tightly overlap on the section and establish the sliding block and set up the fastener for when the opposite side is the tight location of planar metallographic specimen clamp, remove the sliding block to the end of supporting the section tightly, with the fastener with the sliding block rigidity, make the sliding block play the supporting role at the flexible strip back, increased area of contact between flexible strip and the metallographic specimen, increased the centre gripping fastness of fastening to the metallographic specimen.

Drawings

FIG. 1 is a first schematic structural diagram of a metallographic specimen cutting jig in the embodiment;

FIG. 2 is a cross-sectional view of the positioning rod and base in the embodiment;

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a schematic structural diagram II of the metallographic specimen cutting jig in the embodiment;

FIG. 5 is a first operating condition diagram of the metallographic specimen cutting fixture in the embodiment;

FIG. 6 is a sectional view of the positioning rod and the sliding block in the embodiment;

FIG. 7 is a second operating mode diagram of the metallographic specimen cutting jig in the embodiment.

In the figure, 1, a base; 11. mounting holes; 12. assembling holes; 2. positioning a rod; 21. a positioning section; 211. positioning holes; 212. a limiting block; 22. an adjustment section; 221. a guide groove; 23. a resisting section; 231. fastening screw holes; 3. a flexible strip; 31. a connecting rod; 4. an adjusting ring; 41. a guide block; 5. locking a ring; 6. a sliding block; 61. fastening the bolt; 7. positioning pins; 8. a stopper; 9. and (4) metallographic specimen.

Detailed Description

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

Referring to fig. 1, for the utility model discloses a metallographic specimen cutting jig, including the base 1 of T style of calligraphy, open on the base 1 and have the mounting hole 11 that runs through base 1 both sides face and be used for supplying to wear to establish the bolt and be fixed in the equipment hole 12 of metallographic specimen 9 cutting machine with base 1. The assembling holes 12 are disposed at four positions and located at four corners of the base 1.

Referring to fig. 1 and 2, a positioning rod 2 is inserted into the mounting hole 11 of the base 1, and the positioning rod 2 includes a positioning section 21, an adjusting section 22 and a tightening section 23 which are sequentially arranged. Wherein, the setting of locating section 21 through mounting hole 11, the cross section of mounting hole 11 and locating section 21 all becomes the quadrangle. The positioning rod 2 is pulled along the length direction of the positioning rod 2, and the position of the positioning rod 2 can be adjusted. In order to prevent the positioning rod 2 from completely separating from the base 1, a circular limiting block 212 is disposed at the end of the positioning section 21 far away from the adjusting section 22.

Referring to fig. 2, a positioning pin 7 perpendicular to the positioning rod 2 is inserted into the top surface of the base 1, and the bottom end of the positioning pin 7 is inserted into the mounting hole 11. A plurality of positioning holes 211 are uniformly distributed on the positioning section 21 of the positioning rod 2 along the length direction, the positioning rod 2 is adjusted to a proper position, and the positioning pin 7 is inserted into the positioning hole 211 at the corresponding position on the positioning rod 2, so that the position of the positioning rod 2 can be fixed.

Referring to fig. 1 and 3, the adjustment segment 22 is a threaded rod. The adjusting section 22 is coaxially sleeved with an adjusting ring 4 and a locking ring 5. The adjusting ring 4 can slide along the length direction of the positioning rod 2, the locking ring 5 is in threaded connection with the adjusting section 22, and the locking ring 5 is arranged on one side, close to the positioning section 21, of the adjusting ring 4. By rotating the locking ring 5, the position of the locking ring 5 on the adjustment segment 22 can be changed.

Referring to fig. 3 and 4, the adjusting section 22 is provided with a guide groove 221 along the length direction of the adjusting section 22, and the inner circumferential sidewall of the adjusting ring 4 is provided with a guide block 41 extending into the guide groove 221, so that the adjusting ring 4 can only move along the axial direction of the adjusting section 22 without circumferential rotation.

Referring to fig. 4 and 5, the end of the tightening section 23 away from the adjusting section 22 is hinged to a flexible strip 3 made of rubber, and the hinged position is located at the midpoint of the flexible strip 3 in the length direction. A connecting rod 31 is hinged between the two ends of the flexible strip 3 and the adjusting ring 4. When the metallographic specimen 9 with the arc-shaped side surface is cut and positioned, the metallographic specimen 9 is placed between the stop block 8 and the flexible strip 3; rotating the locking ring 5, pushing the adjusting ring 4 to move towards the direction close to the pushing section 23, so that the connecting rod 31 pushes the flexible strip 3 to wrap the arc-shaped surface of the metallographic sample 9, and the contact area between the flexible strip 3 and the metallographic sample 9 is increased; at this time, the metallographic specimen 9 is firmly fixed.

Referring to fig. 3 and 6, the cross section of the tightening section 23 is a regular quadrangle, and a sliding block 6 is sleeved on the tightening section 23. A fastening bolt 61 is inserted in the sliding block 6, a plurality of fastening screw holes 231 are distributed on the side surface of the abutting section 23 along the length direction of the abutting section 23, and in the embodiment, two fastening screw holes 231 are arranged. The position of the slide block 6 can be fixed by rotating the fastening bolt 61 so that the fastening bolt 61 is inserted into the fastening screw hole 231.

Referring to fig. 7, when a metallographic specimen 9 with a plane side surface is fixed, the sliding block 6 is moved firstly until the end surface of the sliding block 6 abuts against the flexible strip 3, and the position of the sliding block 6 is fixed by a fastening bolt 61; then, placing a metallographic sample 9 between the stop block 8 and the flexible strip 3; and finally, adjusting the position of the positioning rod 2 along the length direction of the positioning rod 2 until the metallographic sample 9 is clamped and fixed between the flexible strip 3 and the stop block 8.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a metallographic specimen cutting jig, includes base (1), it has mounting hole (11) to open on base (1), mounting hole (11) interpolation is equipped with locating lever (2), be equipped with the fastening mechanism that is used for fixed positioning pole (2) position on base (1), its characterized in that: the positioning rod (2) comprises a positioning section (21) inserted in the mounting hole (11), an adjusting section (22) connected to the tail end of the positioning section (21) and a pressing section (23) connected to one end, far away from the positioning section (21), of the adjusting section (22); one end, far away from the adjusting section (22), of the abutting section (23) is hinged with a flexible strip (3), and the abutting section (23) is hinged to the middle point of the flexible strip (3) in the length direction; adjust the coaxial cover in section (22) and be equipped with adjustable ring (4), all articulated between the both ends of adjustable ring (4) and flexible strip (3) have connecting rod (31), be equipped with on adjusting section (22) and be used for producing the retaining member in order to support tight adjustable ring (4) along locating lever (2) length direction effort.

2. The metallographic specimen cutting jig according to claim 1, characterized in that: the locking ring (5) of adjusting section (22) is located for the cover to the retaining member, threaded connection between locking ring (5) and the regulation section (22), and adjusting ring (4) are located in locking ring (5) and are deviated from flexible strip (3) one side.

3. The metallographic specimen cutting jig according to claim 2, characterized in that: the adjusting section (22) is provided with a guide groove (221) along the length direction of the positioning rod (2), and the inner circumferential side wall of the adjusting ring (4) is provided with a guide block (41) extending into the guide groove (221).

4. A metallographic specimen cutting jig according to any one of claims 1 to 3, characterized in that: the clamping section (23) is sleeved with a sliding block (6), and the sliding block (6) is provided with a fastening piece for fixing the position of the sliding block (6).

5. A metallographic specimen cutting jig according to claim 4, characterized in that: the fastening piece is a fastening bolt (61) inserted in the sliding block (6).

6. A metallographic specimen cutting jig according to claim 5, characterized in that: the cross section of the abutting section (23) is a regular polygon, and a plurality of fastening screw holes (231) for inserting fastening bolts (61) are distributed on the abutting section (23) along the length direction of the positioning rod (2).

7. A metallographic specimen cutting jig according to any one of claims 1 to 3, characterized in that: the fastening mechanism comprises a positioning pin (7) inserted into the base (1), and the bottom end of the positioning pin (7) is inserted into the mounting hole (11); the positioning section (21) is provided with a plurality of positioning holes (211) for inserting the positioning pins (7), and the positioning holes (211) are distributed at equal intervals along the length direction of the positioning rod (2).

8. The metallographic specimen cutting jig according to claim 7, wherein: the cross section of the mounting hole (11) is a regular polygon, and the cross section shape of the positioning section (21) is matched with that of the mounting hole (11).

9. The metallographic specimen cutting jig according to claim 1, characterized in that: and a limiting block (212) is arranged at one end, far away from the flexible strip (3), of the positioning rod (2).