CN212762902U - Grinding and polishing clamp - Google Patents
Grinding and polishing clamp Download PDFInfo
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- CN212762902U CN212762902U CN202021764061.2U CN202021764061U CN212762902U CN 212762902 U CN212762902 U CN 212762902U CN 202021764061 U CN202021764061 U CN 202021764061U CN 212762902 U CN212762902 U CN 212762902U
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- upper frame
- grinding
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Abstract
The utility model relates to a grinding and polishing clamp, which comprises a fixed upper frame body and a fixed lower frame body, wherein the upper frame body and the lower frame body are provided with spaces for accommodating floating clamping blocks, and the front end surface and the rear end surface of the upper frame body and the lower frame body are provided with grooves; the upper frame body is provided with a fixing strip, the clamping shaft is inserted on the fixing strip, and two ends of the clamping shaft are provided with eccentric clamping wheels; the lower part of the floating clamping block is provided with a plurality of trapezoidal grooves, and a left clamping strip and a right clamping strip for clamping test sample strips are embedded in the trapezoidal grooves; the end parts of the left clamping strip and the right clamping strip are positioned in the grooves. This application can realize reciprocating of unsteady clamp splice through set up eccentric pinch-off pulley on pressing from both sides tight axle, can once centre gripping a plurality of test splines and through reciprocating of unsteady clamp splice realize pressing from both sides tightly the test spline through setting up a plurality of trapezoidal recesses in the lower part of unsteady clamp splice, avoids the condition that artifical centre gripping single test spline carries out the abrasive polishing, has reduced intensity of labour, has improved labor efficiency.
Description
Technical Field
The utility model relates to a grinding and polishing processing technology field, concretely relates to grinding and polishing anchor clamps.
Background
In the process of material research and product production in the powder metallurgy industry of ceramics and the like, in order to know and master the mechanical property index of the material, the performance parameters of the material such as hardness, bending strength and the like need to be tested, a certain number of test sample strips with standard specification of 3mm multiplied by 4mm multiplied by 40mm need to be prepared in the early stage of the performance test, and then the test sample strips are utilized to carry out related performance test.
The preparation of the test sample strip comprises the steps of firstly cutting the test sample strip and grinding four strip surfaces, after the test sample strip is processed to a certain size requirement, according to corresponding test standard requirements, in order to obtain test data reflecting the truth and accuracy of materials and achieve the purpose of eliminating the influence of surface micro-crack defects, grinding and polishing are carried out on the four strip surfaces of the test sample strip subjected to grinding and processing, 45-degree chamfering grinding and polishing are carried out on four strip right-angled edges of the four strip surfaces of the test sample strip subjected to grinding and processing, and the test sample strip can be used for performance testing only when the test sample strip meets the test standard.
At present, some units for grinding and polishing test sample strips are finished by manual operation, and the specific processing process is to coat grinding paste on a glass flat plate, manually clamp and fix the test sample strips by two fingers, and grind, polish and chamfer the test sample strips one by one. Because the section size of the test sample strip is small and is only 3mm multiplied by 4mm, the test sample strip is clamped, fixed and kept by two fingers, the test sample strip has certain difficulty, and meanwhile, the test sample strip needs to move forwards and backwards to finish the grinding and polishing operation, so that the difficulty is increased. Therefore, the grinding and polishing of the test sample strip is a work which is difficult to operate, high in labor intensity and low in labor efficiency, and the fingernails and fingers of operators are easily abraded.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is inconvenient to the less experimental spline centre gripping of size among the prior art, leads to the problem of lapping and polishing difficulty, provides a lapping and polishing anchor clamps.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a grinding and polishing clamp comprises an upper frame body and a lower frame body which are fixed, wherein spaces for accommodating floating clamping blocks are arranged on the upper frame body and the lower frame body, and grooves are formed in the front end face and the rear end face of the upper frame body and the lower frame body;
the upper frame body is provided with a left fixing strip and a right fixing strip, the clamping shaft is inserted on the left fixing strip and the right fixing strip, and two ends of the clamping shaft are respectively provided with an eccentric clamping wheel A and an eccentric clamping wheel B;
the lower part of the floating clamping block is provided with a plurality of trapezoidal grooves, and left clamping strips and right clamping strips are embedded in the trapezoidal grooves;
the left clamping strip and the right clamping strip are used for clamping a test sample strip, and the end parts of the left clamping strip and the right clamping strip are located in the grooves.
The utility model has the advantages that: this application can realize reciprocating of unsteady clamp splice through set up eccentric pinch-off pulley on pressing from both sides tight axle, can once centre gripping a plurality of test splines and through reciprocating of unsteady clamp splice realize pressing from both sides tightly the test spline through setting up a plurality of trapezoidal recesses in the lower part of unsteady clamp splice, avoids the condition that artifical centre gripping single test spline carries out the abrasive polishing, has reduced intensity of labour, has improved labor efficiency. The fixture firmly and smoothly clamps the test sample strip, and the polishing and grinding quality and uniformity are improved.
On the basis of the technical scheme, the utility model discloses a reach the convenience of use and the stability of equipment, can also make following improvement to foretell technical scheme:
furthermore, a clamping part is arranged on the clamping shaft between the left fixing strip and the right fixing strip.
The beneficial effect of adopting the further technical scheme is that: the clamping part is arranged to apply torque force to the clamping shaft, so that the eccentric clamping wheel on the clamping shaft is driven to rotate; the eccentric clamping wheels on two sides can be uniformly stressed by arranging the clamping parts between the fixing strips, and all the test sample strips are clamped.
Furthermore, the section of the clamping part is a regular hexagon or a regular quadrangle.
The beneficial effect of adopting the further technical scheme is that: the clamping part is set to be a regular quadrangle or a regular hexagon, so that the processing is convenient and the operation is simple.
Furthermore, the size of the middle part of the left clamping strip and the right clamping strip is larger than that of the end part of the left clamping strip and the right clamping strip.
The beneficial effect of adopting the further technical scheme is that: through the thicker than both ends with middle part setting, increase the fastness of pressing from both sides tight strip installation, avoid pressing from both sides tight strip from the recess roll-off.
Furthermore, a clamp spring is arranged between the clamping shaft and the left fixing strip and between the clamping shaft and the right fixing strip.
The beneficial effect of adopting the further technical scheme is that: the clamping shaft and the fixing strip are fixed through the clamp spring, operation is simple, materials are convenient to obtain, and processing cost is saved.
Drawings
FIG. 1 is a perspective view of the present grinding and polishing jig;
FIG. 2 is a cross-sectional view of the lapping and polishing jig of the present application;
fig. 3 is a schematic view of the structure of the clamping bar.
The reference numbers are recorded as follows: the clamping device comprises a clamping shaft 1, an eccentric clamping wheel A2, a left fixing strip 3, a right fixing strip 4, a clamp spring 5, an eccentric clamping wheel B6, a floating clamping block 7, an upper frame body 8, a lower frame body 9, a right clamping strip 10, a test sample strip 11, a left clamping strip 12 and a groove 13.
Detailed Description
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or assembly must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
A grinding and polishing clamp (see figures 1 to 3) comprises an upper frame body 8 and a lower frame body 9 which are fixed, wherein the upper frame body 8 and the lower frame body 9 are fixed together through bolts, a space for accommodating a floating clamping block 7 is arranged on the upper frame body 8 and the lower frame body 9, the floating clamping block 7 can move up and down, and grooves 13 are arranged on the front end surface and the rear end surface of the upper frame body 8 and the lower frame body 9;
the upper frame body 8 is provided with a left fixing strip 3 and a right fixing strip 4 through bolts, the clamping shaft 1 is inserted on the left fixing strip 3 and the right fixing strip 4, and two ends of the clamping shaft 1 are respectively provided with an eccentric clamping wheel A2 and an eccentric clamping wheel B6 through flat keys;
the lower part of the floating clamping block 7 is provided with a plurality of trapezoidal grooves, and a left clamping strip 12 and a right clamping strip 10 are embedded in the trapezoidal grooves;
the left clamping bar 12 and the right clamping bar 10 are used for clamping a test sample strip 11, and the ends of the left clamping bar 12 and the right clamping bar 10 are positioned in the grooves 13. The clamping strip is provided with a plane, an inclined plane and an arc surface, the plane is connected with the arc surface through the inclined plane, and the included angle between the plane and the inclined plane is 45 degrees, so that the clamp can not only realize grinding and polishing of long strip surfaces, but also can grind and polish four edge chamfers. The plane and the inclined plane are combined to ensure that the tightening strip is reliably and stably contacted with the lower frame body 9; through setting up the arc surface, make the interior reciprocating of trapezoidal recess that can be smooth of tightening strip. The two ends of the right clamping strip 10 and the left clamping strip 12 are embedded in the groove 13 between the upper frame body 8 and the lower frame body 9.
And a clamping part is arranged on the clamping shaft 1 between the left fixing strip 3 and the right fixing strip 4. Depending on the use, the clamping portion may also be provided at the end of the clamping shaft 1.
The section of the clamping part is a regular hexagon or a regular quadrangle. The clamping parts of the regular quadrangle and the regular hexagon are convenient to be clamped by a spanner, so that the clamping shaft 1 is rotated.
The size of the middle part of the left clamping strip 12 and the right clamping strip 10 is larger than that of the end part thereof.
And a clamp spring 5 is arranged between the clamping shaft 1 and the left fixing strip 3 and the right fixing strip 4. A step can also be provided on the clamping shaft 1, so that the axial positioning of the fixing strip is achieved.
The application grinding and polishing clamp has the following use process: a test sample strip 11 to be ground and polished is inserted into a gap between the right clamping strip 10 and the left clamping strip 12, and is placed on a relatively flat plane such as a glass plate together with a jig. A wrench is clamped into a clamping part in the middle of the clamping shaft 1, the wrench is rotated to drive the eccentric clamping wheel A2 and the eccentric clamping wheel B6 to rotate, the floating clamping block 7 is pressed to move downwards, the right clamping strip 10 and the left clamping strip 12 move towards the trapezoidal groove, and the test sample strip 11 is clamped.
After the clamping shaft 1 is rotated and the ceramic test strip is clamped, the eccentric clamping wheel A2 and the right eccentric clamping wheel B6 are tightly pressed on the upper surface of the floating clamping block 7 and realize friction self-locking, so that the test strip 11 is ensured to be continuously clamped in grinding and polishing processing, and is prevented from sliding, and the quality and the uniformity of polishing and grinding are ensured. After the eccentric clamping wheel and the floating clamping block 7 are self-locked, the clamping shaft 1 can be unlocked only by manually rotating the spanner, and the test sample strip 11 which is well ground and polished is taken down to complete the whole grinding and polishing process.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. The grinding and polishing clamp is characterized by comprising an upper frame body (8) and a lower frame body (9) which are fixed, wherein spaces for accommodating floating clamping blocks (7) are arranged on the upper frame body (8) and the lower frame body (9), and grooves (13) are formed in the front end face and the rear end face of the upper frame body (8) and the lower frame body (9);
the upper frame body (8) is provided with a left fixing strip (3) and a right fixing strip (4), the clamping shaft (1) is inserted on the left fixing strip (3) and the right fixing strip (4), and two ends of the clamping shaft (1) are respectively provided with an eccentric clamping wheel A (2) and an eccentric clamping wheel B (6);
the lower part of the floating clamping block (7) is provided with a plurality of trapezoidal grooves, and a left clamping strip (12) and a right clamping strip (10) are embedded in the trapezoidal grooves;
the left clamping strip (12) and the right clamping strip (10) are used for clamping a test spline (11), and the ends of the left clamping strip (12) and the right clamping strip (10) are located in the grooves (13).
2. The grinding and polishing clamp as claimed in claim 1, characterized in that a clamping portion is provided on the clamping shaft (1) between the left fixing strip (3) and the right fixing strip (4).
3. The lapping and polishing jig of claim 2, wherein the cross section of the holding portion is a regular hexagon or a regular quadrangle.
4. The lapping jig of claim 1, wherein the left clamping bar (12) and the right clamping bar (10) have a central portion dimension larger than an end portion dimension thereof.
5. The grinding and polishing clamp of claim 1, wherein a clamp spring (5) is arranged between the clamping shaft (1) and the left fixing strip (3) and the right fixing strip (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021764061.2U CN212762902U (en) | 2020-08-21 | 2020-08-21 | Grinding and polishing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021764061.2U CN212762902U (en) | 2020-08-21 | 2020-08-21 | Grinding and polishing clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212762902U true CN212762902U (en) | 2021-03-23 |
Family
ID=75054241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021764061.2U Active CN212762902U (en) | 2020-08-21 | 2020-08-21 | Grinding and polishing clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212762902U (en) |
-
2020
- 2020-08-21 CN CN202021764061.2U patent/CN212762902U/en active Active
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