CN214186730U - Sample grinding clamp for experiment - Google Patents

Abstract

The utility model discloses a sample grinds anchor clamps for experiments relates to the experimental field of metal material grinding test. The fixture comprises a fixture body with an open bottom end and a square inner cavity, four groups of limiting assemblies which are symmetrically arranged in the inner cavity of the fixture body and are respectively fixed on the side walls of four fixture substrates, a plurality of inverted T-shaped pressing blocks vertically embedded in the top wall of the fixture body, a depth adjusting knob which is embedded at the top of the corresponding T-shaped pressing block in a one-to-one rotating mode in a threaded combination mode, and a level gauge which is arranged on the top surface of the depth adjusting knob. Utilize the utility model discloses can carry out accurate centre gripping and safe centre gripping to grinding appearance piece, the follow-up smooth of being convenient for goes on, the shape that has the centre gripping sample is many, the depth of grind is controllable, the abrasive surface levelness is easily guaranteed, the grinding error is little, application scope is wide, the commonality is strong, use advantage nimble, safe in operation.

Description

Sample grinding clamp for experiment

Technical Field

The utility model relates to a metal material grinds the test field of test, and more specifically says that a sample grinds anchor clamps for experiments.

Background

The existing laboratory needs to grind a standard sample block before testing the hardness of a metal material, namely, coarse grinding and fine grinding are carried out firstly, and the experimental sample block is small in size, so that when common clamping tools such as calipers, nipper pliers, locking pliers and the like are used, the experimental sample block is damaged by excessive force, and particularly, when a material with low Vickers is clamped, appearance damage is easily caused, internal tissue damage is easily caused, and then a test result is influenced. Therefore, at present, a laboratory still uses hands to clamp the sample block to grind on a grinder, and then tests are carried out after grinding. The grinding in a hand-held manner also has great disadvantages: on one hand, the method has great potential safety hazard, on the other hand, the grinding depth and the levelness of the test surface can not be guaranteed, the error is large, and the precision is low.

Disclosure of Invention

The purpose of the utility model is just to solve the weak point that above-mentioned prior art exists and the sample grinding jig for experiments that provides. Utilize the utility model discloses can carry out accurate centre gripping and safe centre gripping to grinding appearance piece, the follow-up smooth of being convenient for goes on, the shape that has the centre gripping sample is many, the depth of grind is controllable, the abrasive surface levelness is easily guaranteed, the grinding error is little, application scope is wide, the commonality is strong, use advantage nimble, safe in operation.

The purpose of the utility model is realized by the following technical measures:

the utility model relates to an experimental sample grinding clamp which comprises a clamp body (as the installation foundation of the utility model) with an open bottom end and a square inner cavity cross section, four groups of limit components (capable of clamping square grinding sample blocks or round grinding sample blocks) which are symmetrically arranged in the inner cavity of the clamp body and are respectively fixed on the side walls of the four clamp matrixes, a plurality of inverted T-shaped pressing blocks (used for positioning the top surface position and the grinding depth of the grinding sample blocks) vertically embedded in the top wall of the clamp body, a depth adjusting knob (used for adjusting the position of the T-shaped pressing block, namely adjusting the top surface position and the grinding depth of the grinding sample block) which is embedded at the top of the corresponding T-shaped pressing block in a one-to-one screwing mode, and a level gauge (used for judging the horizontal position of the lower bottom pressing surface of the T-shaped pressing block, namely judging whether the top surface of the grinding sample block at the position of the T-shaped pressing block is horizontal) which is arranged at the top surface of the depth adjusting knob; spacing subassembly is by limit baffle (being used for the centre gripping to grind the appearance piece), two limit guide arms of vertical support at the limit baffle back (be used for supporting limit spring, and guide arm when the resilience as limit spring, a limit spring of overcoat on every limit guide arm (for limit baffle provides the packing force, convenient quick clamp grinds appearance piece), fix the locking silk braid at limit baffle back center and outside extension, the locking bolt who runs through anchor clamps base member lateral wall and top screw in silk braid inner chamber constitutes (locking bolt and locking silk braid pass through the combination mode of internal and external screw thread, can fix spacing subassembly on anchor clamps base member lateral wall fast on the one hand, on the other hand can inwards or outwards adjust spacing subassembly's clamping position.

In the utility model, the T-shaped pressing block is of a ladder column structure, and the small diameter end of the T-shaped pressing block is processed into a thread sleeve inner cavity with internal threads; the depth adjustment knob is the bolt structure that comprises stud section and square end cover, the external screw thread of stud section and the internal thread phase-match of screw shell inner chamber in the T type briquetting, and processing has the scale (be used for the position of accurate adjustment T type briquetting, the top surface position and the grinding depth of accurate adjustment grinding appearance piece promptly) on the stud section.

In the utility model, a stepped cylindrical hole (for installing the T-shaped pressing block) matched with the T-shaped pressing block is processed on the top wall of the clamp body, and the large-diameter section of the stepped cylindrical hole is positioned at the inner surface end of the top wall of the clamp body (the T-shaped pressing block is installed in an inverted way); and locking bolt mounting holes are processed on the side walls of the four clamp matrixes.

The utility model discloses in the quantity of T type briquetting is 13 (can select the T type briquetting that corresponds the position according to the area size of grinding the appearance piece, has that application scope is big, the commonality is strong, use nimble advantage).

The design principle of the utility model is as follows:

because the utility model discloses the design has the spacing subassembly of four groups, the clamping position that are the positive direction and arrange can inwards or outwards adjust, and have the automatic packing force that provides of spacing spring, consequently utilize the utility model discloses can be nimble accurate ground square grinding appearance piece of centre gripping or circular grinding appearance piece, the shape that has the centre gripping sample is many, application scope is wide, the commonality is strong, use advantage nimble, operation safety. And simultaneously, because the utility model discloses be provided with the T type briquetting of inversion in anchor clamps body roof, and the top of T type briquetting is connected with degree of depth adjustment knob, install the spirit level again at degree of depth adjustment knob top surface, just so can adjust the position of T type briquetting accurately-adjust the top surface position and the grinding depth of grinding the appearance piece promptly, can also tell whether the grinding appearance piece top surface of T type briquetting position department is horizontal, it is controllable to have the grinding depth, the grinding face levelness is easily guaranteed, the advantage that the grinding error is little, be convenient for follow-up going on smoothly of grinding.

The utility model has the advantages of as follows:

utilize the utility model discloses can carry out accurate centre gripping and safe centre gripping to grinding appearance piece, the follow-up smooth of being convenient for goes on, the shape that has the centre gripping sample is many, the depth of grind is controllable, the abrasive surface levelness is easily guaranteed, the grinding error is little, application scope is wide, the commonality is strong, use advantage nimble, safe in operation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a top view of fig. 1.

The sequence numbers in the figure illustrate: 1. the fixture comprises a fixture body, 1-1 parts of fixture base body side wall, 1-2 parts of fixture body top wall, 1-3 parts of fixture body inner cavity, 2 parts of limiting assembly, 2-1 parts of limiting baffle, 2-2 parts of limiting guide rod, 2-3 parts of limiting spring, 2-4 parts of locking screw sleeve, 2-5 parts of locking bolt, 3 parts of T-shaped pressing block, 4 parts of depth adjusting knob, 5 parts of level gauge, 6 parts of grinding sample block.

Detailed Description

The utility model discloses the following further description of taking in conjunction with the drawing:

as shown in figures 1 and 2, the sample grinding jig for experiments of the present invention comprises a jig body 1 (as an installation base of the present invention) having an open bottom end and a square inner cavity cross-section, four sets of limit components 2 (capable of holding a square grinding sample 6 or a round grinding sample 6) symmetrically arranged in inner cavities 1-3 of the jig body and fixed to side walls 1-1 of four jig bases, a plurality of inverted T-shaped press blocks 3 (for positioning the top surface position and the grinding depth of the grinding sample 6) vertically embedded in the top walls 1-2 of the jig body, a depth adjusting knob 4 (for adjusting the position of the T-shaped press block 3, i.e. adjusting the top surface position and the grinding depth of the grinding sample 6) embedded in the top of the corresponding T-shaped press block 3 in a screw-threaded manner, and a level gauge 5 (for interpreting the horizontal position of the lower bottom surface of the T-shaped press block 3) installed on the top surface of the depth adjusting knob 4, judging whether the top surface of the grinding sample block 6 at the position of the T-shaped pressing block 3 is horizontal or not); the limiting assembly 2 is composed of a limiting baffle 2-1 (used for clamping a grinding sample block 6), two limiting guide rods 2-2 (used for supporting limiting springs 2-3 and used as guide rods for rebounding of the limiting springs 2-3) vertically supported on the back of the limiting baffle 2-1, a limiting spring 2-3 (used for providing pressing force for the limiting baffle 2-1 to conveniently and quickly clamp the grinding sample block 6) sleeved on each limiting guide rod 2-2, a locking screw sleeve 2-4 fixed at the center of the back of the limiting baffle 2-1 and extending outwards, and a locking bolt 2-5 penetrating through the side wall of the clamp base body and screwed into the inner cavity of the screw sleeve at the top end (the locking bolt 2-5 and the locking screw sleeve 2-4 can quickly fix the limiting assembly 2 on the side wall 1-1 of the clamp base body through the combination mode of internal and external threads on one hand, on the other hand, the clamping position of the limiting component 2 can be adjusted inwards or outwards).

In the utility model, the T-shaped pressing block 3 is of a ladder column structure, and the small diameter end of the T-shaped pressing block 3 is processed into a thread sleeve inner cavity with internal threads; the depth adjustment knob 4 is a bolt structure composed of a stud section and a square end cover, the external thread of the stud section is matched with the internal thread of the inner cavity of the screw sleeve in the T-shaped pressing block 3, and scales are processed on the stud section (used for accurately adjusting the position of the T-shaped pressing block 3, namely the top surface position and the grinding depth of the grinding sample block 6).

In the utility model, a stepped cylindrical hole (for installing the T-shaped pressing block 3) matched with the T-shaped pressing block 3 is processed on the top wall 1-2 of the clamp body, and the large-diameter section of the stepped cylindrical hole is positioned at the inner surface end of the top wall 1-2 of the clamp body (the T-shaped pressing block 3 is installed in an inverted way); and locking bolt mounting holes are processed on the side walls 1-1 of the four clamp matrixes.

The utility model discloses in T type briquetting 3's quantity is 13 (can select the T type briquetting 3 that corresponds the position according to the area size of grinding appearance piece 6, has that application scope is big, the commonality is strong, use nimble advantage).

The utility model discloses a concrete in service behavior as follows:

firstly, the utility model is assembled according to the structural description; then, the grinding sample block 6 is placed in the center of an inner cavity 1-3 of the clamp body, and the clamping positions of the four groups of limiting assemblies 2 are adjusted through locking bolts 2-5, so that the four groups of limiting assemblies 2 are symmetrically clamped around the grinding sample block 6; the height position of the T-shaped pressing block 3 in the area where the grinding sample block 6 is located is adjusted through the depth adjusting knob 4, the lower bottom pressing surface of each T-shaped pressing block 3 is adjusted to be in contact with the top surface of the grinding sample block 6, and the depth scales displayed on the depth adjusting knob 4 are the same; then, the grinding machine is started to grind the lower surface of the grinding sample block 6.

Claims (4)

1. The utility model provides a sample grinding clamp for experiments which characterized in that: the fixture comprises a fixture body (1) with an open bottom end and a square inner cavity section, four groups of limiting assemblies (2) which are symmetrically arranged in the inner cavity (1-3) of the fixture body and are respectively fixed on the side walls (1-1) of four fixture substrates, a plurality of inverted T-shaped pressing blocks (3) vertically embedded in the top wall (1-2) of the fixture body, depth adjusting knobs (4) which are embedded in the tops of the corresponding T-shaped pressing blocks (3) in a threaded combination manner one by one, and a level gauge (5) which is installed on the top surface of the depth adjusting knobs (4); the limiting assembly (2) is composed of a limiting baffle (2-1), two limiting guide rods (2-2) vertically supported on the back of the limiting baffle (2-1), a limiting spring (2-3) sleeved on each limiting guide rod (2-2), a locking screw sleeve (2-4) fixed in the center of the back of the limiting baffle (2-1) and extending outwards, and a locking bolt (2-5) penetrating through the side wall of the clamp base body and screwed into the inner cavity of the screw sleeve at the top end.

2. The experimental sample grinding jig of claim 1, wherein: the T-shaped pressing block (3) is of a stepped column structure, and the small-diameter end of the T-shaped pressing block (3) is processed into a thread sleeve inner cavity with internal threads; the depth adjusting knob (4) is of a bolt structure consisting of a stud section and a square end cover, external threads of the stud section are matched with internal threads of an inner cavity of a thread sleeve in the T-shaped pressing block (3), and scales are machined on the stud section.

3. The experimental sample grinding jig of claim 1, wherein: a stepped cylindrical hole matched with the T-shaped pressing block (3) is processed on the top wall (1-2) of the clamp body, and the large-diameter section of the stepped cylindrical hole is positioned at the inner surface end of the top wall (1-2) of the clamp body; and locking bolt mounting holes are processed on the four side walls (1-1) of the clamp base body.

4. The experimental sample grinding jig of claim 1, wherein: the number of the T-shaped pressing blocks (3) is 13.

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