CN219465480U - Test piece hole making tool - Google Patents

Abstract

The application relates to the technical field of grouped numerical control tool application, in particular to a test piece hole making tool. According to the test piece hole making tool, two or more test pieces to be processed are correspondingly stacked on the first positioning piece of the tool body, and the first positioning piece of the tool body and the first clamping piece of the clamping device limit the bottom surface and the top surface of the test piece to be processed; the second positioning piece and the second clamping piece of the tool body are used for limiting the left side surface and the right side surface of the test piece to be processed; the third locating piece of the tool body is used for limiting two ends of the test piece to be processed, and further achieving locating of six faces of the test piece to be processed, two or more test pieces to be processed, which are stacked together, are drilled, and hole making of the two or more test pieces to be processed is achieved through one-time locating operation. The test piece hole making tool provided by the application effectively ensures the positioning precision, ensures the processing precision, reduces the hole making workload and improves the working efficiency.

Description

Test piece hole making tool

Technical Field

The application relates to the technical field of grouped numerical control tool application, in particular to a test piece hole making tool.

Background

The composite material mechanical test piece is a material for measuring the mechanical property of the composite material, and various allowable values are preconditions for popularization and application of the composite material. Mechanical connection extrusion strength test pieces, extrusion bypass test pieces, extrusion fatigue test pieces are typical test pieces for determining the mechanical connection properties of composite materials. During testing, a plurality of test pieces are required to be assembled by high-lock bolt connection according to drawing requirements, and the parallelism requirements of the two connected sides are higher, so that the requirements on holes for installing the high-lock bolts are higher.

In the related art, two test pieces to be assembled are tightly attached to a special tool respectively for hole making, a C-shaped clamp is used for clamping during hole making, a clearance between the test pieces and the tool is measured by a feeler gauge to ensure that the test pieces are installed in place, a high-locking bolt fastener is installed for assembly after hole making, and then milling processing is carried out on one side of the assembled test pieces to ensure that the parallelism of two sides meets the tolerance requirement.

However, the processing method needs to make holes on two test pieces to be assembled respectively, and milling procedures are added after the test pieces are assembled, so that the problems of complex process, large workload and low efficiency exist.

Disclosure of Invention

The application provides a test piece hole making tool, which can effectively solve the above or other potential technical problems.

The first aspect of the application provides a test piece hole making tool, which comprises a tool body and a clamping device; the tool body comprises a first positioning piece, a second positioning piece and a third positioning piece; the first positioning piece is used for receiving a test piece to be processed, and at least two avoidance holes are formed in the first positioning piece; the second positioning piece is used for limiting the side face of the test piece to be processed; the third positioning piece is used for limiting two end parts of the positioning piece to be detected; the clamping device comprises a first clamping piece and a second clamping piece, wherein the first clamping piece is used for limiting the top surface of the test piece to be processed, and the second clamping piece is used for abutting the test piece to be processed from the opposite surface of the second positioning piece.

The test piece hole making tool provided by the embodiment of the application comprises a tool body and a clamping device; when the test pieces are drilled, two or more test pieces to be processed are correspondingly stacked on a first positioning piece of the tool body, and the first positioning piece of the tool body receives the test pieces to be processed, so that the bottom surface of the test pieces to be processed is limited; the first clamping piece of the clamping device is used for limiting the top surface of the test piece to be processed; the second positioning piece and the second clamping piece of the tool body are used for limiting the left side surface and the right side surface of the test piece to be processed; the third locating piece of the tool body is used for limiting two ends of the test piece to be processed, and further six faces of the test piece to be processed are located, the hole making cutter is adopted to correspond to the avoiding hole position on the first locating piece, two or more test pieces to be processed, which are stacked together, are drilled, and one-time locating operation is achieved to complete hole making of the two or more test pieces to be processed. According to the embodiment of the application, six pairs of two or more to-be-machined test pieces are adopted for limiting, so that the positioning accuracy is effectively guaranteed, the machining accuracy is further guaranteed, the two or more to-be-machined test pieces are simultaneously subjected to hole making, the workload of hole making is effectively reduced, the mounting difficulty of the to-be-machined test pieces is reduced, and the working efficiency is effectively improved.

In an optional embodiment according to the first aspect, the first clamping member includes a first connection portion and a first abutment portion, the first connection portion is connected with the tool body, and the first abutment portion is movably connected with the first connection portion, so that the first abutment portion may be close to or far away from the first positioning member, and is configured to abut against or release a top surface of the test piece to be processed placed on the first positioning member.

The device is arranged in such a way, and further the limitation of the top surface of the test piece to be processed is realized.

In an alternative embodiment according to the first aspect, the clamping device comprises at least two first clamping members arranged at intervals, and the at least two first clamping members correspondingly press against different positions of the top surface of the test piece to be processed.

The arrangement effectively ensures the effective limit on the top surface of the test piece to be processed, and avoids the phenomenon that the test piece to be processed slides in the hole making process; and meanwhile, the phenomenon of stress concentration caused by limiting the single-point position is effectively avoided.

In an alternative embodiment according to the first aspect, the second tightening member includes a second connection portion and a second abutment portion, the second connection portion being connected to the tool body and being disposed opposite to the second positioning member;

the second abutting part is movably connected with the second connecting part, so that the second abutting part can be close to or far away from the second positioning piece and is used for abutting or releasing the side face of the test piece to be processed.

The arrangement further realizes the limitation of the left side surface and the right side surface of the test piece to be processed by the second positioning piece and the second clamping piece.

In an alternative embodiment according to the first aspect, the second abutment is provided with a buffer layer for abutting an end of the test piece to be processed.

The device is used for protecting the side face of the test piece to be processed, and simultaneously increasing the friction force between the test piece to be processed and the test piece to be processed, so that the test piece to be processed can be better abutted.

In an alternative embodiment according to the first aspect, the cushioning layer is a rubber pad.

The buffer layer is arranged in such a way, the purpose of using the buffer layer can be effectively guaranteed, and the buffer layer has the technical effects of long service life and low cost.

In an alternative embodiment according to the first aspect, the tightening means comprise at least three second tightening members spaced apart, at least three second tightening members being arranged equally spaced apart, one of the second tightening members corresponding to the centre of the second positioning member.

By the arrangement, at least two limiting points on the same side face of each test piece to be processed can be effectively guaranteed, and stability of limiting of the side face of the test piece to be processed is guaranteed.

In an alternative embodiment according to the first aspect, the test piece hole making tool further includes a back pad, the back pad is disposed in the avoidance hole, and a top surface of the back pad is not higher than an upper surface of the first positioning piece.

By the arrangement, the hole making quality can be ensured during hole making, and the phenomenon that the cutter surface of the test piece to be processed is damaged by fiber splitting can be effectively prevented.

In an alternative embodiment according to the first aspect, the test piece hole forming tool further includes a first compensation spacer block and a second compensation spacer block, two ends of the first compensation spacer block respectively abut against the second positioning piece and a side surface of the test piece to be processed, and are used for compensating for the width of the test piece to be processed;

and two ends of the second compensation cushion block are respectively abutted with the third positioning piece and two end faces of the test piece to be processed, and are used for compensating the length of the test piece to be processed.

By the arrangement, the test piece hole making tool can be suitable for more test pieces with different sizes, and the suitability of the test piece hole making tool is improved.

In an alternative embodiment according to the first aspect, the first and second compensating spacer blocks are each rectangular plate-like structures.

The device is arranged in such a way, so that the compensation of the width and the length of the test piece to be processed can be conveniently realized.

Additional aspects of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and other objects, features and advantages of embodiments of the present application will become more readily apparent from the following detailed description, which proceeds with reference to the accompanying drawings. Embodiments of the present application will now be described, by way of example and not limitation, in the figures of the accompanying drawings, in which:

fig. 1 is a schematic diagram of an overall structure of a mechanical connection extrusion strength test piece to be processed by a test piece hole forming tool provided in an embodiment of the present application under a first view angle;

fig. 2 is a schematic diagram of an overall structure of a mechanical connection extrusion strength test piece to be processed by the test piece hole forming tool provided in the embodiment of the present application under a second view angle;

fig. 3 is a schematic diagram of an overall structure of a connecting extrusion bypass test piece to be processed by the test piece hole making tool provided in the embodiment of the present application under a first view angle;

fig. 4 is a schematic diagram of an overall structure of a connecting extrusion bypass test piece to be processed by the test piece hole forming tool provided in the embodiment of the present application under a second view angle;

fig. 5 is a schematic diagram of an overall structure of a connecting extrusion fatigue test piece to be processed by the test piece hole forming tool provided in the embodiment of the present application under a first view angle;

fig. 6 is a schematic diagram of an overall structure of a connecting extrusion fatigue test piece to be processed by the test piece hole forming tool provided in the embodiment of the present application under a second view angle;

fig. 7 is a schematic diagram of an overall structure of a test piece hole forming tool provided in an embodiment of the present application, where the overall structure includes a first compensation pad at a first view angle;

fig. 8 is a schematic overall structure of the test piece hole forming tool provided in the embodiment of the present application under a second view angle;

fig. 9 is a schematic diagram of an overall structure of a test piece hole forming tool provided in an embodiment of the present application, where the overall structure includes a first compensation pad at a third view angle;

fig. 10 is a schematic diagram of an overall structure of a test piece hole forming tool provided in an embodiment of the present application, where the test piece hole forming tool includes a second compensation pad at a third view angle;

fig. 11 is a schematic overall structure diagram of the test piece hole forming tool provided in the embodiment of the present application in a state where the second clamping piece abuts against the test piece under the fourth view angle;

fig. 12 is a schematic partial cross-sectional view of the test piece hole forming tool provided in the embodiment of the present application in a state where the first clamping piece and the second clamping piece both abut against the test piece under the fourth view angle.

Reference numerals illustrate:

10. hole making tooling for test pieces; 11. a tool body; 111. a first positioning member; 112. a second positioning member; 113. a third positioning member; 114. avoidance holes; 13. a clamping device; 131. a first clamping member; 1311. a first connection portion; 1313. a first abutting portion; 132. a second clamping member; 1321. a second connecting portion; 1323. a second abutting portion; 15. a back pad; 17. a first compensating spacer block; 19. a second compensating spacer block; 20. and (5) a test piece to be processed.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In this application, unless specifically stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be a mechanical connection; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The composite material mechanical test piece is a material for measuring the mechanical property of the composite material, and various allowable values are preconditions for popularization and application of the composite material. Mechanical connection extrusion strength test pieces, extrusion bypass test pieces, extrusion fatigue test pieces are typical test pieces for determining the mechanical connection properties of composite materials. During testing, a plurality of test pieces are required to be assembled by high-lock bolt connection according to drawing requirements, and the parallelism requirements of the two connected sides are higher, so that the requirements on holes for installing the high-lock bolts are higher. In the related art, two test pieces to be assembled are tightly attached to a special tool respectively for hole making, a C-shaped clamp is used for clamping during hole making, a clearance between the test pieces and the tool is measured by a feeler gauge to ensure that the test pieces are installed in place, a high-locking bolt fastener is installed for assembly after hole making, and then milling processing is carried out on one side of the assembled test pieces to ensure that the parallelism of two sides meets the tolerance requirement. However, the processing method needs to make holes on two test pieces to be assembled respectively, and milling procedures are added after the test pieces are assembled, so that the problems of complex process, large workload and low efficiency exist.

In view of this, the test piece hole making tool provided in the embodiment of the present application includes a tool body and a tightening device; when the test pieces are drilled, two or more test pieces to be processed are correspondingly stacked on a first positioning piece of the tool body, and the first positioning piece of the tool body receives the test pieces to be processed, so that the bottom surface of the test pieces to be processed is limited; the first clamping piece of the clamping device is used for limiting the top surface of the test piece to be processed; the second positioning piece and the second clamping piece of the tool body are used for limiting the left side surface and the right side surface of the test piece to be processed; the third locating piece of the tool body is used for limiting two ends of the test piece to be processed, and further six faces of the test piece to be processed are located, the hole making cutter is adopted to correspond to the avoiding hole position on the first locating piece, two or more test pieces to be processed, which are stacked together, are drilled, and one-time locating operation is achieved to complete hole making of the two or more test pieces to be processed. According to the embodiment of the application, six pairs of two or more to-be-machined test pieces are adopted for limiting, so that the positioning accuracy is effectively guaranteed, the machining accuracy is further guaranteed, the two or more to-be-machined test pieces are simultaneously subjected to hole making, the workload of hole making is effectively reduced, the mounting difficulty of the to-be-machined test pieces is reduced, and the working efficiency is effectively improved.

Referring to fig. 1 to 12, a test piece hole making tool 10 provided in an embodiment of the present application includes a tool body 11 and a tightening device 13; the tool body 11 comprises a first positioning piece 111, a second positioning piece 112 and a third positioning piece 113; the first positioning piece 111 is used for receiving the test piece 20 to be processed, and at least two avoidance holes 114 are formed in the first positioning piece 111; the second positioning piece 112 is used for limiting the side surface of the test piece 20 to be processed; the third positioning piece 113 is used for limiting two end parts of the positioning piece to be detected; the clamping device 13 comprises a first clamping member 131 and a second clamping member 132, wherein the first clamping member 131 is used for limiting the top surface of the test piece 20 to be processed, and the second clamping member 132 is used for abutting the test piece 20 to be processed from the opposite surface of the second positioning member 112.

It should be noted that, the test piece hole making tool 10 provided in the embodiment of the present application includes a tool body 11 and a tightening device 13; when the test piece is drilled, two or more test pieces 20 to be processed are correspondingly stacked on the first positioning piece 111 of the tool body 11, and the first positioning piece 111 of the tool body 11 receives the test piece 20 to be processed, so that the bottom surface of the test piece 20 to be processed is limited; the first clamping member 131 of the clamping device 13 is used for limiting the top surface of the test piece 20 to be processed; the second positioning piece 112 and the second clamping piece 132 of the tool body 11 are used for limiting the left side surface and the right side surface of the test piece 20 to be processed; the third positioning piece 113 of the tool body 11 is used for limiting two ends of the to-be-processed test piece 20, so that six surfaces of the to-be-processed test piece 20 are positioned, a hole forming cutter is adopted to correspond to the position of the avoidance hole 114 on the first positioning piece 111, two or more to-be-processed test pieces 20 stacked together are drilled, and one-time positioning operation is realized to finish hole forming of the two or more to-be-processed test pieces 20. According to the embodiment of the application, six faces are adopted to limit two or more to-be-processed test pieces 20, so that the positioning accuracy is effectively guaranteed, the processing accuracy is further guaranteed, the two or more to-be-processed test pieces 20 are simultaneously subjected to hole making, the workload of hole making is effectively reduced, meanwhile, the mounting difficulty of the to-be-processed test pieces 20 is reduced, and the working efficiency is effectively improved.

It should be further noted that, the setting of avoiding hole 114 corresponds to the position of the drilling hole on tool body 11, so that the tool for making the hole can be effectively prevented from colliding with tool body 11, and the structural stability of tool body 11 is further protected.

It should be further noted that the test piece processed by the test piece hole forming tool 10 provided in the embodiment of the present application includes a composite material, but is not limited to the composite material, and may be other materials.

In an alternative exemplary embodiment, the first clamping member 131 includes a first connection portion 1311 and a first abutment portion 1313, where the first connection portion 1311 is connected to the tool body 11, and the first abutment portion 1313 is movably connected to the first connection portion 1311, so that the first abutment portion 1313 may be close to or far from the first positioning member 111, and is used for pressing or releasing the top surface of the test piece 20 to be processed placed on the first positioning member 111.

In particular, in this embodiment, the first clamping member 131 is configured to include a first connection portion 1311 and a first abutment portion 1313, where the first connection portion 1311 is connected to the tool body 11, and the first abutment portion 1313 is movably connected to the first connection portion 1311, so that the first abutment portion 1313 may be close to or far away from the first positioning member 111, and when the first abutment portion 1313 moves toward a direction close to the first positioning member 111 until abutting against the top surface of the test piece 20 to be processed on the first positioning member 111, the limitation of the top surface of the test piece 20 to be processed is further achieved, and when the first abutment portion 1313 moves toward a direction far away from the first positioning member 111, the limitation of the top surface of the test piece 20 to be processed is further released, thereby achieving the limitation of the top surface of the test piece to be processed.

In an alternative exemplary embodiment, the tightening device 13 includes at least two first tightening members 131 disposed at intervals, and the at least two first tightening members 131 correspondingly press against different positions of the top surface of the test piece 20 to be processed.

It should be noted that, in this embodiment, the clamping device 13 includes at least two first clamping members 131 disposed at intervals, and the at least two first clamping members 131 correspondingly press different positions of the top surface of the test piece 20 to be processed, so as to realize the pressing of the top surface of the test piece 20 to be processed at different positions, thereby effectively ensuring the effective limitation of the top surface of the test piece 20 to be processed, and avoiding the sliding phenomenon of the test piece 20 to be processed in the hole making process; and meanwhile, the phenomenon of stress concentration caused by limiting the single-point position is effectively avoided.

Specifically, in the present embodiment, the tightening device 13 includes two first tightening members 131. It is understood that the number of the first fastening members 131 is not limited to two, and the number of the first fastening members 131 may be three, four, five, or the like according to the specific needs of the user.

In an alternative exemplary embodiment, the second tightening member 132 includes a second connecting portion 1321 and a second abutting portion 1323, where the second connecting portion 1321 is connected to the tool body 11 and is disposed opposite to the second positioning member 112; the second abutting portion 1323 is movably connected with the second connecting portion 1321, so that the second abutting portion 1323 can be close to or far from the second positioning member 112, and is used for abutting against or releasing the side surface of the test piece 20 to be processed.

In particular, in the present embodiment, the second tightening member 132 includes a second connecting portion 1321 and a second abutting portion 1323, where the second connecting portion 1321 is connected to the tool body 11 and is disposed opposite to the second positioning member 112; the second abutting portion 1323 is movably connected with the second connecting portion 1321, so that the second abutting portion 1323 may be close to or far away from the second positioning member 112, when the second abutting portion 1323 moves toward the direction close to the second positioning member 112 until abutting against the side surface of the test piece 20 to be processed on the second positioning member 112, further the limitation of the second positioning member 112 and the second clamping member 132 on the left and right sides of the test piece 20 to be processed is achieved, and when the second abutting portion 1323 moves toward the direction far away from the second positioning member 112, the side surface of the test piece 20 to be processed is released, thereby the limitation on the side surface of the test piece to be processed is achieved.

Specifically, in this embodiment, the second tightening member 132 may be a jackscrew.

In an alternative exemplary embodiment, the second abutting portion 1323 is provided with a buffer layer for abutting against an end of the test piece 20 to be processed.

In particular, in the present embodiment, the second abutment portion 1323 is configured to abut against an end portion of the test piece 20 to be processed and is provided with a buffer layer. The buffer layer is used for protecting the side face of the test piece 20 to be processed, and meanwhile friction force between the buffer layer and the test piece 20 to be processed can be increased, and the test piece 20 to be processed can be better abutted.

Specifically, in this embodiment, the buffer layer is a rubber pad.

It should be noted that in this embodiment, the buffer layer is a rubber pad, and the rubber pad has elasticity and extrusion resistance, so that the purpose of using the buffer layer can be effectively ensured, and the buffer layer has the technical effects of long service life and low cost.

In an alternative exemplary embodiment, the tightening device 13 includes at least three second tightening members 132 spaced apart, and at least three second tightening members 132 are disposed at equal intervals, wherein one of the second tightening members 132 corresponds to the center of the second positioning member 112.

It should be noted that, in this embodiment, the tightening device 13 includes at least three second tightening members 132 spaced apart from each other, and at least three second tightening members 132 are disposed at equal intervals, where one second tightening member 132 corresponds to the center of the second positioning member 112. In the positioning and mounting process, the second clamping members 132 corresponding to the central positions of the second positioning members 112 can limit the sides of two or more test pieces 20 to be processed simultaneously, and the second clamping members 132 arranged on two sides of the central positions are used for limiting the sides of at least one test piece 20 to be processed.

Specifically, in the present embodiment, the tightening device 13 includes three second tightening members 132. It is to be understood that the number of the second fastening members 132 is not limited to three, and the number of the second fastening members 132 may be four, five, six, or the like according to the specific needs of the user.

In an alternative exemplary embodiment, the test piece hole forming tool 10 further includes a back pad 15, where the back pad 15 is disposed in the avoidance hole 114, and a top surface of the back pad 15 is not higher than an upper surface of the first positioning piece 111.

It should be noted that, in this embodiment, the test piece hole forming tool 10 further includes a back pad 15, where the back pad 15 is disposed in the avoidance hole 114, and the top surface of the back pad 15 is not higher than the upper surface of the first positioning member 111. The back backing plate 15 is located in the avoidance hole 114 of the first positioning piece 111 and used for supporting the position of the corresponding avoidance hole 114 of the test piece 20 to be processed, and the arrangement is that the hole making quality can be ensured during hole making, and the phenomenon that the cutter surface of the test piece 20 to be processed is damaged by fiber splitting can be effectively prevented.

Specifically, in this embodiment, the backing plate 15 is made of glass fiber board or other material that can be used as a composite material to form a knife-face backing plate.

Specifically, in the present embodiment, the shape of the back pad 15 is adapted to the shape of the escape hole 114.

Specifically, in the present embodiment, the cross-sectional dimension of the back pad 15 is adapted to the cross-sectional dimension of the escape hole 114.

In an alternative exemplary embodiment, the test piece hole forming tool 10 further includes a first compensation cushion block 17 and a second compensation cushion block 19, where two ends of the first compensation cushion block 17 are respectively abutted against the second positioning piece 112 and the side surface of the test piece 20 to be processed, so as to compensate the width of the test piece 20 to be processed; two ends of the second compensation cushion 19 are respectively abutted against the third positioning member 113 and two end surfaces of the test piece 20 to be processed, and are used for compensating the length of the test piece 20 to be processed.

It should be noted that, specifically, in this embodiment, the test piece hole forming tool 10 further includes a first compensation cushion block 17 and a second compensation cushion block 19, where two ends of the first compensation cushion block 17 are respectively abutted against the second positioning piece 112 and a side surface of the test piece 20 to be processed, so as to compensate for the width of the test piece 20 to be processed; two ends of the second compensation cushion 19 are respectively abutted against the third positioning member 113 and two end surfaces of the test piece 20 to be processed, and are used for compensating the length of the test piece 20 to be processed. The first compensation cushion block 17 and the second compensation cushion block 19 are arranged, so that the test piece hole making tool 10 can be suitable for more test pieces with different sizes, and the suitability of the test piece hole making tool 10 is improved.

In an alternative exemplary embodiment, the first and second compensating blocks 17 and 19 are each rectangular plate-like structures.

In particular, in this embodiment, the first compensation spacer 17 and the second compensation spacer 19 are both rectangular plate structures, so as to facilitate the compensation of the width and the length of the test piece 20 to be processed.

Finally, it should be noted that: the above embodiments are merely for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the various possible combinations are not described further.

Claims (10)

1. The test piece hole making tool is characterized by comprising a tool body and a clamping device; the tool body comprises a first positioning piece, a second positioning piece and a third positioning piece; the first positioning piece is used for receiving a test piece to be processed, and at least two avoidance holes are formed in the first positioning piece; the second positioning piece is used for limiting the side face of the test piece to be processed; the third positioning piece is used for limiting two end parts of the positioning piece to be detected;

the clamping device comprises a first clamping piece and a second clamping piece, wherein the first clamping piece is used for limiting the top surface of the test piece to be processed, and the second clamping piece is used for abutting the test piece to be processed from the opposite surface of the second positioning piece.

2. The test piece hole making tool according to claim 1, wherein the first clamping piece comprises a first connecting portion and a first abutting portion, the first connecting portion is connected with the tool body, the first abutting portion is movably connected with the first connecting portion, so that the first abutting portion can be close to or far away from the first positioning piece, and is used for abutting or releasing the top surface of the test piece to be processed, which is placed on the first positioning piece.

3. The test piece hole making tool according to claim 1, wherein the clamping device comprises at least two first clamping pieces arranged at intervals, and the at least two first clamping pieces correspondingly press different positions of the top surface of the test piece to be processed.

4. The test piece hole making tool according to claim 1, wherein the second clamping piece comprises a second connecting portion and a second abutting portion, and the second connecting portion is connected to the tool body and is arranged opposite to the second positioning piece;

the second abutting part is movably connected with the second connecting part, so that the second abutting part can be close to or far away from the second positioning piece and is used for abutting or releasing the side face of the test piece to be processed.

5. The test piece hole making tool according to claim 4, wherein the second abutting portion is used for abutting an end portion of the test piece to be processed, and a buffer layer is arranged on the end portion.

6. The test piece hole making tool of claim 5, wherein the buffer layer is a rubber pad.

7. The test piece hole making tool of claim 1, wherein the clamping device comprises at least three second clamping pieces spaced apart from each other, the at least three second clamping pieces being disposed at equal intervals, wherein one of the second clamping pieces corresponds to a center of the second positioning piece.

8. The test piece hole making tool of any one of claims 1-7, further comprising a back pad disposed in the relief hole, and a top surface of the back pad is not higher than an upper surface of the first positioning piece.

9. The test piece hole making tool according to any one of claims 1 to 7, further comprising a first compensation cushion block and a second compensation cushion block, wherein two ends of the first compensation cushion block are respectively abutted against the second positioning piece and the side surface of the test piece to be processed, and are used for compensating the width of the test piece to be processed;

and two ends of the second compensation cushion block are respectively abutted with the third positioning piece and two end faces of the test piece to be processed, and are used for compensating the length of the test piece to be processed.

10. The test piece hole making tooling of claim 9, wherein the first and second compensation spacer blocks are each of rectangular plate-like configuration.