CN218856488U - Test piece processing device - Google Patents
Test piece processing device Download PDFInfo
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- CN218856488U CN218856488U CN202223519472.7U CN202223519472U CN218856488U CN 218856488 U CN218856488 U CN 218856488U CN 202223519472 U CN202223519472 U CN 202223519472U CN 218856488 U CN218856488 U CN 218856488U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model relates to the technical field of machining, a test block processingequipment is disclosed, including emery wheel and fixture device, the emery wheel sets up in the grinding machine and removes and cut the test block along the first direction, the circumference of emery wheel and the shape looks adaptation of V type breach, fixture device sets up in the grinding machine and lies in the first direction, be used for the centre gripping test block, fixture device includes locating component and clamping component, locating component includes reference base and setting element, one side of the first direction of the perpendicular to of reference base is provided with first step, the setting element sets up the side at reference base, the test block is shelved in first step and is pasted tightly on one side and the setting element of reference base, clamping component links to each other with reference base, be used for pressing from both sides tight test block in reference base. The test piece processing device can be used for sequentially grinding the V-shaped notch characteristics of two sides of the test piece by once aligning and fixing the clamp device and once aligning the cutting position of the grinding wheel, so that the appearance size and the surface roughness of the test piece can meet the test requirements.
Description
Technical Field
The utility model relates to the technical field of machining, especially, relate to a test block processingequipment.
Background
In the process of developing an airplane, V-shaped notch cutting processing needs to be carried out on a large number of composite material test pieces in order to test the shearing performance of the composite material.
In order to satisfy the manufacturing requirements of the test on the V-shaped notch 3 ', the size of the top rounded corner of the V-shaped notch 3 ' is R1.3mm, the surface roughness of the V-shaped notch 3 ' is not more than Ra0.8 μm, the angular deviation of the V-shaped notch 3 ' is required to be +/-0.5 °, the positions of the upper and lower V-shaped notches 3 ' of the first and second test pieces 1 ' and 2 ' are required to be +/-0.1 mm, and the surface roughness of the peripheral profile of the first and second test pieces 1 ' and 2 ' is required to be Ra1.6 μm, as shown in FIGS. 1-2. Overall, the processing degree of difficulty is big and the machining precision requires highly.
In the related art, a milling process is usually adopted, and a milling cutter with a diameter less than 2.6mm is used for directly milling the round corner of the V-shaped notch 3' on a numerical control machine tool. Although the processing can not generate angle deviation and position degree, the surface roughness of the notch hardly meets the requirement of Ra0.8 mu m, and the subsequent reworking and grinding by using abrasive paper are also needed, so that the appearance size is easy to be out of tolerance, the processing efficiency is low, and the milling cutter made of the composite material has high cost and is not suitable for processing large-batch test pieces.
Therefore, it is desirable to design a new specimen processing device to improve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a test block processingequipment can solve follow-up still need utilize abrasive paper to rework and polish, easily causes the overall dimension overproof, and machining efficiency is low, and combined material's milling cutter is with high costs, the unsuitable problem of large batch test block processing.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a test block processingequipment, include:
the grinding wheel is arranged on the grinding machine, moves along a first direction and cuts the test piece, and the circumferential direction of the grinding wheel is matched with the shape of the V-shaped notch on the test piece;
the fixture device is arranged on the grinding machine and located in the first direction and used for clamping the test piece, the fixture device comprises a positioning component and a clamping component, the positioning component comprises a reference base and a positioning part, a first step is arranged on one side of the first direction, the positioning part is arranged on the side face of the reference base, the test piece is placed on the first step and tightly attached to one side of the reference base and the positioning part, and the clamping component is connected with the reference base and used for clamping the test piece in the reference base.
As a preferable embodiment of the test piece processing device, a second step is disposed on the other side of the reference base perpendicular to the first direction, and the other test piece is placed on the second step and tightly attached to the other side of the reference base and the positioning member.
As a preferable scheme of the test piece processing device, the positioning element includes a positioning pin, a positioning hole is formed in the side surface of the reference base along the first direction, the positioning pin is inserted into the positioning hole, and the test piece located on two sides of the reference base abuts against the periphery of the positioning pin.
As a preferable embodiment of the test piece processing device, a plurality of the positioning holes are provided, and the plurality of positioning holes are arranged at intervals on the reference base along a second direction perpendicular to the first direction.
As a preferred scheme of the test piece processing device, the clamping assembly comprises two pressing plates which are symmetrically arranged, the two pressing plates are used for clamping one test piece, the pressing plates are abutted against the test piece, a bolt penetrates through the pressing plates, and the bolt is in threaded connection with the side surface of the reference base.
As a preferable mode of the test piece processing device, a set screw is connected to the pressure plate in a threaded manner, and an end of the set screw abuts against a side surface of the reference base.
As a preferable scheme of the test piece processing device, a waist-shaped groove is formed in the pressure plate along the length direction of the pressure plate, and the bolt is arranged in the waist-shaped groove.
As a preferable scheme of the test piece processing device, a gasket is sleeved on the rod part of the bolt, and the gasket is arranged between the head part of the bolt and the pressure plate.
As a preferable embodiment of the test piece processing device, one end of the pressure plate near the test piece is provided with a pointed end.
As a preferable embodiment of the test piece processing device, a slot is provided on the side surface of the reference base at the edge of the supporting surface of the first step and/or the second step.
The utility model has the advantages that:
the utility model provides a pair of test block processingequipment, through alignment and mounting fixture device in the grinding machine once, the cutting position of alignment emery wheel is installed in the grinding machine once, the upset obtains two processing states of test block on fixture device, make the emery wheel along the first direction to the test block of centre gripping on fixture device grind out the V type breach characteristic of test block both sides in proper order, ensured that its appearance size and roughness homoenergetic meet experimental requirements, above-mentioned grinding mode is compared in utilizing milling cutter to mill, it is simple more reliable and the cost is lower, high efficiency, be applicable to large batch processing. Wherein, the test block is when placing, shelves the test block on the surface of first step to make the adjacent both sides of test block all keep hugging closely with reference base and setting element and accomplish trilateral location, thereby determine the test block in reference base's the position of placing accurately, then utilize clamping assembly to press from both sides the test block tightly, the machining precision improves.
Drawings
Fig. 1 is a schematic view of the overall structure of a first test piece in the background art of the present invention;
FIG. 2 is a schematic diagram of the overall structure of a second test piece in the background art of the present invention;
FIG. 3 is a schematic view of the overall structure of a test piece processing apparatus according to an embodiment of the present invention;
FIG. 4 is a first schematic structural view of a clamping device according to an embodiment of the present invention;
fig. 5 is a second schematic structural view of a clamping device according to an embodiment of the present invention.
In FIGS. 1-2:
1', a first test piece; 2', a second test piece; 3', V-shaped notch;
in FIGS. 3-5:
1. a grinding wheel;
2. a positioning assembly; 21. a reference base; 22. a first step; 23. a second step; 24. positioning pins; 241. positioning holes;
3. a clamping assembly; 31. pressing a plate; 311. a waist-shaped groove; 312. a tip; 32. a bolt; 321. a threaded hole; 33. a gasket; 34. grooving; 35. and (5) tightening the screw.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Based on the above description, V-shaped notches meeting the test standard are formed on both sides of the test piece. Referring to fig. 3-5, the present embodiment provides a test piece processing device, which includes a grinding wheel 1 and a clamping device disposed on a processing grinder.
Specifically, as shown in fig. 3, the circumferential direction of the grinding wheel 1 is adapted to the shape of the V-shaped notch of the test piece, the test piece is made of an aluminum alloy material, and the grinding part of the grinding wheel 1 is made of a wear-resistant sic ceramic material, so as to ensure the accuracy of the profile of the ground V-shaped notch. The whole weight of the grinding wheel 1 is 1.6kg, and the grinding wheel can be well suitable for a grinding machine of a light main shaft. The thickness of the grinding wheel 1 is greater than 26.48mm, the actual manufacturing of the embodiment is 27mm, the inner diameter of the grinding wheel 1 is 31.75mm and is matched with a spindle of a grinding machine, and grooves (not shown in the figures) are formed in the circumferential direction of the inner diameters of two end faces of the grinding wheel 1 and used for being assembled and screwed with a flange.
Further, as shown in fig. 4-5, the clamping device includes a positioning assembly 2 and a clamping assembly 3. The positioning assembly 2 comprises a reference base 21 and a positioning piece, wherein the bottom surface of the reference base 21 is horizontally placed on a magnetic workbench (not shown in the figure), one side of the reference base 21 parallel to the first direction is parallel to an XOY plane of the grinding machine, and the parallelism is within 0.01 mm. One side of the reference base 21 perpendicular to the first direction is provided with a first step 22, the other side of the reference base 21 perpendicular to the first direction is provided with a second step 23, the positioning member is arranged on two opposite sides of the reference base 21 having the first step 22 and the second step 23, the test piece is placed on the first step 22 and tightly attached to one side of the reference base 21 and the positioning member, the other test piece is placed on the second step 23 and tightly attached to the other side of the reference base 21 and the positioning member, two sets of clamping assemblies 3 are provided, and each set of clamping assemblies 3 is connected with the reference base 21 and used for clamping the test piece on the reference base 21.
It can be understood that, the fixture is aligned and fixed on the grinding machine at one time, the cutting position of the grinding wheel 1 is aligned and installed on the grinding machine at one time, and two processing states of the test piece are obtained by turning the grinding wheel on the fixture, so that the grinding wheel 1 sequentially grinds the V-shaped notch characteristics on two sides of the test piece on the test piece clamped on the fixture along the first direction, and the appearance size and the surface roughness of the test piece are ensured to meet the test requirements. Wherein, the test block is when placing, shelves the test block on first step 22's surface to make the adjacent both sides of test block all keep hugging closely with reference base 21 and setting element and accomplish trilateral location, thereby determine the test block accurately in reference base 21 place the position, then utilize clamping component 3 to press from both sides the test block tightly, the machining precision improves.
Specifically, as shown in fig. 4 to 5, the positioning element of the present embodiment includes a positioning pin 24, two opposite sides of the reference base 21 having the first step 22 and the second step 23 have a positioning hole 241 penetrating along the first direction, the positioning pin 24 is inserted into the positioning hole 241, and the length of the positioning pin 24 is greater than the length of the positioning hole 241. When the positioning pin 24 is inserted into the positioning hole 241, two ends of the positioning pin 24 can extend out of the positioning hole 241, and the test pieces located at two sides of the reference base 21 abut against the periphery of the positioning pin 24, so that the positioning pin 24 can simultaneously position the test pieces on the first step 22 and the second step 23, and the positioning accuracy is further improved.
Further, a plurality of positioning holes 241 are provided, and the plurality of positioning holes 241 are provided at equal intervals in the second direction on the reference base 21. The length direction of the test piece is parallel to the second direction, and the positioning pins 24 are inserted into the corresponding positioning holes 241 according to different types and sizes of the test pieces, namely, the lengths of the test pieces are different, so that the universality of the fixture device is improved.
Specifically, as shown in fig. 4-5, the clamping assembly 3 of the present embodiment includes two pressing plates 31 symmetrically disposed, and the two pressing plates 31 are used for clamping a test piece. One end of the pressure plate 31 is a pointed end 312, the other end of the pressure plate 31 is provided with a bolt 32, the two opposite sides of the reference base 21 having the first step 22 and the second step 23 are provided with a threaded hole 321, the bolt 32 is correspondingly threaded in the threaded hole 321, and the pointed end 312 of the pressure plate 31 is close to and abutted against the test piece. By screwing the bolt 32, the head of the bolt 32 presses the pressure plate 31 and keeps close contact with the test piece, so as to clamp the test piece.
Further, in order to enable the fixture to accommodate test strips of different thickness and length. On the other hand, the pressure plate 31 is screwed with a set screw 35, and an end of the set screw 35 abuts against a side surface of the reference base 21. The extension distance of one end of the set screw 35 abutting against the reference base 21 can be adjusted by screwing the set screw 35 to meet the processing requirements of test pieces with different thicknesses, and the adjustable range of the bolt 32 and/or the set screw 35 is 0-20mm. On the other hand, the pressure plate 31 is provided with a waist-shaped groove 311 along the length direction thereof, the bolt 32 is arranged in the waist-shaped groove 311, and the position of the bolt 32 in the waist-shaped groove 311 can be adjusted to further adapt to test pieces with different lengths.
Preferably, in order to reduce wear between the bolt 32 and the pressure plate 31, a washer 33 is fitted over a shaft portion of the bolt 32, and the washer 33 is disposed between a head portion of the bolt 32 and the pressure plate 31.
Preferably, the side surface of the reference base 21 is provided with a slot 34 at the edge of the supporting surface of the first step 22 and/or the second step 23, and the slot 34 is very beneficial to the clamping of the test piece.
In order to ensure the efficiency of grinding the test piece on the grinding machine and better utilize the grinding wheel 1 and reduce the abrasion of the grinding wheel 1, the V-shaped notch of the test piece needs to be roughly processed before the grinding process, namely, a milling process is adopted, and a machining allowance of 0.5mm-1mm is reserved. The fast positioning and grinding process of the test piece is further described in detail with reference to fig. 3-5 (taking the example of mounting one test piece on the reference base 21, two test pieces are mounted similarly, and this embodiment is not described in detail):
s1: placing the fixture device on a magnetic worktable of a grinding machine;
s2: adjusting the placing direction of the reference base 21 to enable one side of the reference base 21 to be parallel to an XOY plane of the grinding machine, wherein the parallelism is required to be within 0.01 mm;
s3: opening a magnetic adsorption switch to adsorb the clamp device on the grinding machine;
s4: installing a test piece to be processed on a reference base 21, placing the test piece on a first step 22 or a second step 23, keeping two adjacent sides of the test piece respectively abutted against the side surface of the reference base 21 and simultaneously abutted against the peripheral side of a positioning pin 24, adjusting a set screw 35 and screwing a bolt 32, and fixing the test piece on the reference base 21;
s5: starting the grinding machine to drive the grinding wheel 1 to rotate and simultaneously drive the grinding wheel 1 to move along a first direction so as to cut a V-shaped notch on one side of the test piece;
s6: reversely screwing the set screw 35 and the bolt 32, detaching the test piece and turning the test piece, wherein one side of the test piece, which is cut by the V-shaped notch, is placed on the first step 22 or the second step 23, the adjacent two sides of the test piece are respectively kept to abut against the side surface of the reference base 21 and abut against the peripheral side of the positioning pin 24, and the set screw 35 is adjusted and the bolt 32 is screwed, so that the test piece is fixed on the reference base 21;
s7: starting the grinding machine, and driving the grinding wheel 1 to move along a first direction at the same position so as to cut out a V-shaped notch on the other side of the test piece;
s8: and disassembling the test piece to finish the processing of the V-shaped notch of the test piece.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The test piece processing device is characterized by comprising:
the grinding wheel (1) is arranged on the grinding machine, moves along a first direction and cuts the test piece, and the circumferential direction of the grinding wheel (1) is matched with the shape of the V-shaped notch on the test piece;
the fixture device is arranged on the grinding machine and located in the first direction and used for clamping the test piece, the fixture device comprises a positioning component (2) and a clamping component (3), the positioning component (2) comprises a reference base (21) and a positioning piece, the reference base (21) is perpendicular to one side of the first direction and provided with a first step (22), the positioning piece is arranged on the side face of the reference base (21), the test piece is placed on the first step (22) and tightly attached to one side of the reference base (21) and the positioning piece, the clamping component (3) is connected with the reference base (21) and used for clamping the test piece in the reference base (21).
2. The apparatus of claim 1, wherein a second step (23) is disposed on the other side of the reference base (21) perpendicular to the first direction, and the other test piece is placed on the second step (23) and attached to the other side of the reference base (21) and the positioning member.
3. The device for processing the test piece according to claim 2, wherein the positioning member comprises a positioning pin (24), a positioning hole (241) is formed through a side surface of the reference base (21) along the first direction, the positioning pin (24) is inserted into the positioning hole (241), and the test piece located at two sides of the reference base (21) abuts against the periphery of the positioning pin (24).
4. The device for processing the test piece according to claim 3, wherein a plurality of the positioning holes (241) are provided, and a plurality of the positioning holes (241) are provided at intervals in a second direction perpendicular to the first direction on the reference base (21).
5. The device for processing the test piece according to claim 2, wherein the clamping assembly (3) comprises two pressure plates (31) symmetrically arranged, the two pressure plates (31) are used for clamping one test piece, the pressure plates (31) abut against the test piece, a bolt (32) is arranged on the pressure plates (31) in a penetrating manner, and the bolt (32) is in threaded connection with the side surface of the reference base (21).
6. The device for processing test pieces according to claim 5, wherein a set screw (35) is screwed on the pressure plate (31), and an end of the set screw (35) abuts against a side surface of the reference base (21).
7. The apparatus for processing test pieces according to claim 5, wherein the pressure plate (31) has a waist-shaped groove (311) formed along a length direction thereof, and the bolt (32) is disposed in the waist-shaped groove (311).
8. The device for processing the test piece according to claim 7, wherein a gasket (33) is sleeved on the shaft of the bolt (32), and the gasket (33) is arranged between the head of the bolt (32) and the pressure plate (31).
9. The test strip processing device according to claim 5, wherein the end of the pressure plate (31) near the test strip is provided as a tip (312).
10. The test strip processing device according to claim 2, characterized in that the side faces of the reference base (21) are provided with a groove (34) at the edge of the support face of the first step (22) and/or the second step (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223519472.7U CN218856488U (en) | 2022-12-28 | 2022-12-28 | Test piece processing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223519472.7U CN218856488U (en) | 2022-12-28 | 2022-12-28 | Test piece processing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218856488U true CN218856488U (en) | 2023-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223519472.7U Active CN218856488U (en) | 2022-12-28 | 2022-12-28 | Test piece processing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218856488U (en) |
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2022
- 2022-12-28 CN CN202223519472.7U patent/CN218856488U/en active Active
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