CN111579376A - Test tool - Google Patents
Test tool Download PDFInfo
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- CN111579376A CN111579376A CN202010487286.6A CN202010487286A CN111579376A CN 111579376 A CN111579376 A CN 111579376A CN 202010487286 A CN202010487286 A CN 202010487286A CN 111579376 A CN111579376 A CN 111579376A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a test tool, which comprises: a fixed seat; the first clamping wall is arranged on the fixed seat; the second clamping wall is arranged on the fixed seat, the first clamping wall and/or the second clamping wall can move relative to the fixed seat, and a fluid channel suitable for being communicated with the test pipeline is arranged on the first clamping wall or the second clamping wall; a plurality of annular first mounting positions are arranged on the surface of the first clamping wall opposite to the second clamping wall, the first mounting positions are suitable for mounting the annular sealing ring, and the first mounting positions are concentric; the second chuck wall is provided with a plurality of annular second mounting positions on the surface opposite to the first chuck wall, the annular sealing ring is mounted on the second mounting positions, and the plurality of second mounting positions are concentric. When the diameters of the end parts of the to-be-tested pieces are different, a proper mounting position can be selected and the sealing ring is arranged in the mounting position according to the diameter of the end part of the to-be-tested piece, so that the end parts of the to-be-tested pieces can be sealed, the to-be-tested pieces with different diameters can be tested, and the universality is good.
Description
Technical Field
The invention relates to the technical field of detection, in particular to a test tool.
Background
The environment for human living is getting worse and worse at present, but with the development of society, the deepening of industrialization degree, the progress of scientific technology and the improvement of thought cognition of people, the environmental problem is more and more emphasized by people, and people start advocating green food eating and using environment-friendly industrial products. In order to adapt to the development of times, a pollution-free and environment-friendly liquid oxygen methane engine is produced under the environment. Different types of engines in the space liquid rocket engine have valves with different functions, and the types of the valves are dozens. The casing is the essential element of valve, different kinds of valve, and the corresponding difference of size of valve casing in process of production, needs carry out intensity and leakproofness test to the valve casing to ensure that the valve casing can satisfy the user demand. The test tool in the prior art can only meet the requirement of testing a valve shell with a single size, and is poor in universality.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect of poor universality of the test tool in the prior art, so that the test tool with good universality is provided.
In order to solve the technical problem, the invention provides a test tool, which comprises:
a fixed seat;
the first clamping wall is arranged on the fixed seat;
the second clamping wall is arranged on the fixed seat, the first clamping wall and/or the second clamping wall can move relative to the fixed seat, a fluid channel suitable for being communicated with a test pipeline is arranged on the first clamping wall or the second clamping wall, and the fluid channel is suitable for being communicated with the interior of a to-be-tested piece clamped between the first clamping wall and the second clamping wall;
a plurality of annular first mounting positions are arranged on the surface of the first clamping wall opposite to the second clamping wall, the first mounting positions are suitable for mounting an annular sealing ring, and the first mounting positions are concentric;
the second chuck wall is provided with a plurality of annular second mounting positions on the surface opposite to the first chuck wall, the annular sealing ring is mounted on the second mounting positions, and the second mounting positions are concentric.
The first installation position is a first groove arranged on the first clamping wall, and the second installation position is a second groove arranged on the second clamping wall.
The test fixture is characterized by further comprising a lifting structure, wherein the lifting structure is suitable for supporting a piece to be tested and is arranged between the first clamping wall and the second clamping wall in a lifting mode.
The lifting structure is movably arranged on the fixed seat.
The fixing seat is provided with a sliding groove, and the lower end of the lifting structure is arranged in the sliding groove.
The elevation structure includes:
the top end of the supporting seat is suitable for supporting a piece to be tested, and the outer surface of the supporting seat at least close to the bottom end of the supporting seat is provided with an external thread;
the movable nut is horizontally and rotatably arranged outside the supporting seat and is provided with an internal thread matched with the external thread on the supporting seat;
the fixed nut is sleeved at the bottom end of the supporting seat, an internal thread matched with the external thread on the supporting seat is arranged in the fixed nut, the fixed nut is arranged in the sliding groove in a sliding mode, and the lower end of the movable nut is abutted to the upper end of the fixed nut.
The sliding groove is a through groove, the cross section of the sliding groove is T-shaped, and the fixing nut is an I-shaped nut.
The top of supporting seat is equipped with the supporting pad.
The supporting seat comprises a supporting body and two supporting arms arranged at the top end of the supporting body, the supporting arms are arranged in an inclined mode, and a piece to be tested is accommodated between the two supporting arms.
The first clamping wall is fixedly arranged on the fixed seat, and the second clamping wall is movably arranged on the fixed seat.
And the second clamping wall is provided with a convex block matched with the sliding groove, and the convex block is arranged in the sliding groove.
The locking structure is used for locking the position of the second clamping wall.
The fixing seat comprises a base and a side plate fixedly arranged at one end of the base, a threaded hole is formed in the side plate, the locking structure comprises a first threaded connecting piece connected in the threaded hole, and one end of the first threaded connecting piece is suitable for abutting against the second clamping wall.
One end of the first threaded connecting piece is connected with a top cover, and the top cover is suitable for being in contact with the second chuck wall surface.
One end of the first threaded connecting piece is provided with a step surface, the top cover is provided with a connecting hole matched with the step surface, and the top cover is connected with the first threaded connecting piece through a screw.
The first clamping wall, the second clamping wall and the side plates are connected through at least one second threaded connecting piece.
One end of the fluid channel is provided with a threaded connection end.
The technical scheme of the invention has the following advantages:
1. according to the test tool provided by the invention, when a test piece to be tested needs to be tested, the first clamping wall or the second clamping wall is moved, the test piece to be tested is clamped between the first clamping wall and the second clamping wall, the test pieces to be tested with different lengths can be tested, a plurality of annular first mounting positions are arranged on the first clamping wall, a plurality of annular second mounting positions are arranged on the second clamping wall, the first mounting positions and the second mounting positions are suitable for mounting annular sealing rings, when the diameters of the end parts of the test pieces to be tested are different, the proper mounting positions can be selected and the sealing rings are arranged in the mounting positions according to the diameters of the end parts of the test pieces to be tested, so that the end parts of the test pieces to be tested are sealed, the test pieces to be tested with different diameters can be tested, and the universality is good.
2. According to the test tool provided by the invention, the first mounting position is a first groove arranged on the first clamping wall, and the second mounting position is a second groove arranged on the second clamping wall, so that the annular sealing ring can be conveniently mounted and fixed.
3. The test tool provided by the invention further comprises a lifting structure which is suitable for supporting the piece to be tested, the lifting structure is arranged between the first clamping wall and the second clamping wall in a lifting mode, the lifting mechanism can adjust the height position of the piece to be tested, the central axis of the piece to be tested is ensured to be collinear with the circle centers of the first installation position and the second installation position respectively, so that good sealing of two ends of the time to be tested is ensured, the piece to be tested can be supported by the lifting structure, and the position of the piece to be tested in the test process is stable.
4. According to the test tool provided by the invention, the lifting structure is movably arranged on the fixed seat, when the to-be-tested piece is placed on the lifting structure, the lifting structure can be supported at the middle position of the to-be-tested piece, so that the to-be-tested piece is stressed in a balanced manner, and then the lifting structure is moved, so that the to-be-tested piece is clamped between the first clamping wall and the second clamping wall, and the stable support of the to-be-tested piece can be ensured through the arrangement.
6. According to the test tool provided by the invention, the fixed seat is provided with the sliding groove, the lower end of the lifting structure is arranged in the sliding groove, and the sliding groove can play a role of guiding the movement of the lifting structure, so that the stable movement is ensured.
7. The invention provides a test tool, wherein the lifting structure comprises: the top end of the supporting seat is suitable for supporting a piece to be tested, and the outer surface of the supporting seat at least close to the bottom end of the supporting seat is provided with an external thread; the movable nut is horizontally and rotatably arranged outside the supporting seat and is provided with an internal thread matched with the external thread on the supporting seat; the fixing nut is sleeved at the bottom end of the supporting seat, an internal thread matched with the external thread on the supporting seat is arranged in the fixing nut, the fixing nut is arranged in the sliding groove in a sliding mode, the lower end of the movable nut is abutted to the upper end of the fixing nut, when the height of the supporting seat needs to be adjusted, the movable nut is horizontally rotated to enable the height of the supporting seat to be adjusted, and the operation mode is simple and convenient.
8. According to the test tool provided by the invention, the sliding groove is a through groove, the section of the sliding groove is T-shaped, and the fixing nut is an I-shaped nut, so that the horizontal movement of the lifting structure can be ensured, and the fixing nut can be stably positioned in the sliding groove and cannot be separated from the sliding groove.
9. According to the test tool provided by the invention, the supporting pad is arranged at the top end of the supporting seat, and the supporting pad can protect the surface of the piece to be tested from being damaged.
10. The test tool provided by the invention has the advantages that the supporting seat comprises a supporting body and two supporting arms arranged at the top end of the supporting body, the supporting arms are arranged obliquely, a test piece to be tested is accommodated between the two supporting arms, and the two supporting arms can prevent the test piece to be tested from turning over and have a limiting effect on the test piece to be tested.
11. According to the test tool provided by the invention, the first clamping wall is fixedly arranged on the fixed seat, the second clamping wall is movably arranged on the fixed seat, and when a piece to be tested needs to be clamped, the second clamping wall only needs to be moved, so that the operation is convenient.
12. According to the test tool provided by the invention, the second clamping wall is provided with the convex block matched with the sliding groove, the convex block is arranged in the sliding groove, and the sliding groove can guide the movement of the second clamping wall, so that the stable movement is ensured.
13. The test tool further comprises a locking structure, the locking structure is used for locking the position of the second clamping wall, and the locking structure can be matched with the second clamping wall to enable a to-be-tested piece to be stably clamped between the first clamping wall and the second clamping wall, so that the test safety is ensured.
14. The invention provides a test tool, wherein a fixed seat comprises a base and a side plate fixedly arranged at one end of the base, a threaded hole is formed in the side plate, a locking structure comprises a first threaded connecting piece connected in the threaded hole, one end of the first threaded connecting piece is suitable for abutting against a second clamping wall, after the second clamping wall moves in place and clamps a to-be-tested piece, the first threaded connecting piece is screwed down to enable the first threaded connecting piece to firmly abut against the second clamping wall, namely, the position of the second clamping wall can be locked, and the to-be-tested piece is stably clamped between the first clamping wall and the second clamping wall, so that the safety of the test is ensured.
15. According to the test tool provided by the invention, one end of the first threaded connecting piece is connected with the top cover, the top cover is suitable for being in surface contact with the second clamping wall, the top cover and the second clamping wall have a larger contact area, so that the top cover can be firmly abutted against the second clamping wall, the position of the second clamping wall is locked, the to-be-tested piece is stably clamped between the first clamping wall and the second clamping wall, and the test safety is ensured.
16. According to the test tool provided by the invention, one end of the first threaded connecting piece is provided with the step surface, the top cover is provided with the connecting hole matched with the step surface, and the top cover is connected with the first threaded connecting piece through the screw, so that the first threaded connecting piece and the top cover can be conveniently positioned and installed.
17. According to the test tool provided by the invention, the first clamping wall, the second clamping wall and the side plate are also connected through at least one second threaded connecting piece, and during testing, the second threaded connecting piece exerts axial force on the first clamping wall and the side plate, so that the safety of the test can be enhanced.
18. According to the test tool provided by the invention, one end of the fluid channel is provided with the threaded connection end, so that the connection with a test pipeline is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a front view of a test fixture provided in an embodiment of the present invention;
FIG. 2 is a top view of the test fixture shown in FIG. 1;
fig. 3 is a front view of a test tool provided in an embodiment of the present invention, on which a test piece is mounted;
FIG. 4 is a top view of FIG. 3;
fig. 5 is a front view of a fixing seat of the testing tool provided in the embodiment of the present invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a side view at B-B of FIG. 6;
FIG. 8 is a side view of the second chuck wall of FIG. 1;
FIG. 9 is a side view of the support base of FIG. 1;
FIG. 10 is a front view of the first threaded connection of FIG. 1;
fig. 11 is a front view of the top cover of fig. 1.
Description of reference numerals:
1-a first chuck wall; 101-a first groove; 2-ring seal ring; 3-a second chuck wall; 301-a second groove; 302-a bump; 4-a top cover; 401-connecting hole; 5-a screw; 6-a first threaded connection; 601-step surface; 7-a support pad; 8-a support seat; 801-a support body; 802-a support arm; 9-a movable nut; 10-fixing a nut; 11-a second threaded connection; 12-a lock nut; 13-a test piece; 141-a base; 142-a side plate; 143-a chute; 15-threaded connection end.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being 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," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The embodiment provides a specific implementation manner of a test tool, the test tool is used for performing strength and sealing tests on a shell of a valve, as shown in fig. 1 to 11, the test tool comprises a fixed seat, a first clamping wall 1 and a second clamping wall 3.
Wherein the first chuck wall 1 is arranged on the fixed seat; the second clamping wall 3 is arranged on the fixed seat, the first clamping wall 1 and/or the second clamping wall 3 can move relative to the fixed seat, a fluid channel suitable for being communicated with a test pipeline is arranged on the first clamping wall 1 or the second clamping wall 3, and the fluid channel is suitable for being communicated with the interior of a to-be-tested part 13 clamped between the first clamping wall 1 and the second clamping wall 3; a plurality of annular first mounting positions are arranged on the surface of the first clamping wall 1 opposite to the second clamping wall 3, the first mounting positions are suitable for mounting the annular sealing ring 2, and the first mounting positions are concentric; the second chuck wall 3 is provided with a plurality of annular second mounting positions on the surface opposite to the first chuck wall 1, the annular sealing ring 2 is mounted on the second mounting positions, and the second mounting positions are concentric.
When the performance test of the to-be-tested piece 13 is needed, the first clamping wall 1 or the second clamping wall 3 is moved, the to-be-tested piece 13 is clamped between the first clamping wall 1 and the second clamping wall 3, the to-be-tested pieces 13 with different lengths can be tested, a plurality of annular first installation positions are arranged on the first clamping wall 1, a plurality of annular second installation positions are arranged on the second clamping wall 3, the first installation positions and the second installation positions are suitable for installing the annular sealing rings 2, when the diameters of the end portions of the to-be-tested pieces 13 are different, the appropriate installation positions can be selected and the sealing rings can be arranged in the installation positions according to the diameters of the end portions of the to-be-tested pieces 13, so that the end portions of the to-be-tested pieces 13 are sealed, the to-be-tested pieces 13 with different diameters can be tested, and the universality is good. When the test is carried out, the fluid channel on the first clamping wall 1 or the second clamping wall 3 is communicated with a test pipeline, and the test pipeline leads liquid or gas into the to-be-tested piece 13 through the fluid channel to carry out performance test.
In this embodiment, the to-be-tested object 13 refers to a housing of the valve, and the plurality of first mounting positions and the plurality of second mounting positions correspond to one another. Of course, the test tool of the embodiment can also test other parts needing to be tested.
In the present embodiment, the first mounting location is a first recess 101 provided on the first chuck wall 1 and the second mounting location is a second recess 301 provided on the second chuck wall 3. When testing, only need according to the diameter of waiting to test 13 tip, select corresponding size's first installation position, second installation position, with the sealing washer embedding first recess 101 and in the second recess 301, set up like this and be convenient for install annular seal 2 fixedly. In an alternative embodiment, the first mounting position and the second mounting position are annular regions defined on the surfaces of the first clamping wall 1 and the second clamping wall 3 in advance, and when testing is performed, the first mounting position and the second mounting position with corresponding sizes are selected according to the diameter of the end part of the piece to be tested 13, and the sealing ring is fixed in the first mounting position and the second mounting position in an adhesive or buckling mode. In another alternative embodiment, the first mounting position and the second mounting position protrude from the surface of the first clamping wall 1 and the second clamping wall 3, respectively, for example, a plurality of annular protrusions are respectively arranged on the surface of the first clamping wall 1 and the surface of the second clamping wall 3, annular grooves are arranged in the annular protrusions, and the sealing rings can be embedded in the annular grooves.
In this embodiment, the test fixture further comprises a lifting structure, which is suitable for supporting the to-be-tested piece 13, and the lifting structure is arranged between the first chuck wall 1 and the second chuck wall 3 in a lifting manner. The lifting mechanism can adjust the height position of the piece to be tested 13, and ensures that the central axis of the piece to be tested 13 is collinear with the circle centers of the first installation position and the second installation position respectively, so that the good sealing of two ends of the time to be tested is ensured, and the lifting mechanism can support the piece to be tested 13, so that the position of the piece to be tested 13 in the testing process is stable.
In general, when the to-be-tested part 13 is placed on the lifting structure, the center of gravity of the to-be-tested part 13 is balanced, and then the first clamping wall 1 and/or the second clamping wall 3 need to be moved to enable the first clamping wall 1 and the second clamping wall 3 to clamp the to-be-tested part 13, when only the first clamping wall 1 or the second clamping wall 3 is moved, the lifting structure needs to be moved as well to ensure that the lifting structure is always supported in the middle of the to-be-tested part 13, for this reason, in the present embodiment, the lifting structure is movably arranged on the fixing base, and this arrangement can ensure that the to-be-tested part 13 is stably supported.
Specifically, the fixing seat is provided with a sliding groove 143, and the lower end of the lifting structure is arranged in the sliding groove 143. The slide groove 143 can play a guiding role in the movement of the lifting structure, ensuring stable movement. In other alternative embodiments, a slide rail may be disposed on the fixing base, so that the lower end of the lifting structure is clamped outside the slide rail.
In this embodiment, the lifting structure includes a support base 8, a movable nut 9, and a fixed nut 10. The top end of the supporting seat 8 is suitable for supporting a piece to be tested 13, and the outer surface of the supporting seat 8 at least close to the bottom end of the supporting seat is provided with an external thread; the movable nut 9 is horizontally and rotatably arranged outside the supporting seat 8, and the movable nut 9 is provided with an internal thread matched with the external thread on the supporting seat 8; the bottom of supporting seat 8 is established to fixation nut 10 cover, is equipped with the internal thread with the external screw thread looks adaptation on the supporting seat 8 in the fixation nut 10, and fixation nut 10 slidable ground sets up in spout 143, and the lower extreme of movable nut 9 offsets with the upper end of fixation nut 10. When the height of the supporting seat 8 needs to be adjusted, the movable nut 9 is horizontally rotated to adjust the height of the supporting seat 8, the fixing nut 10 has a limiting effect on the movement of the supporting seat 8, the supporting seat 8 can only move up and down, the supporting seat cannot rotate along with the movable nut 9, and the operation mode is simple and convenient. In other alternative embodiments, the lifting structure may employ an electric cylinder, which is disposed in the slide groove 143, and a push rod of the electric cylinder is adapted to support the test piece 13.
Specifically, the sliding groove 143 is a through groove, the cross section of the sliding groove 143 is T-shaped, and the fixing nut 10 is an i-shaped nut. The cross-section of spout 143 specifically indicates the cross-section along the moving direction of first double-layered wall 1 or second double-layered wall 3, spout 143 is including the first cell body that is linked together, the second cell body, first cell body is located second cell body top, the width of first cell body is greater than the width of second cell body, fixation nut 10 is including fixed body, be located the first spacing end of fixed body lower extreme, be located the spacing end of second of fixed body upper end, fixed body is located the second cell body, first spacing end stretches out the second cell body and the width that the width is greater than the second cell body, the width of the spacing end of second equals with the width of first cell body, the height of the spacing end of second is greater than the height of first cell body, also stretch out first cell body. Constrained by the shapes of the sliding groove 143 and the fixing nut 10, the fixing nut 10 can only move relative to the sliding groove 143, and the fixing nut 10 cannot lift up and down along with the support base 8.
The top of supporting seat 8 is equipped with supporting pad 7. Specifically, the support pad 7 is made of a plastic material, and can protect the surface of the test piece 13 from being damaged.
As shown in fig. 9, the supporting base 8 includes a supporting body 801, and two supporting arms 802 disposed at the top end of the supporting body 801, wherein the supporting arms 802 are disposed obliquely, and the two supporting arms 802 are adapted to receive the test piece 13 therebetween. The two supporting arms 802 can prevent the to-be-tested piece 13 from side turning over, and limit the to-be-tested piece 13.
In the present embodiment, the first clipping wall 1 is fixedly disposed on the fixing base, and the second clipping wall 3 is movably disposed on the fixing base. When the piece to be tested 13 needs to be clamped, only the second clamping wall 3 needs to be moved, and the operation is convenient. Specifically, the first clipping wall 1 and the fixing seat are of an integrally formed structure, or the first clipping wall 1 is fixed on the fixing seat through welding or a fastening piece. In other alternative embodiments, the second clipping wall 3 can be fixedly arranged on the fixing base, and the first clipping wall 1 can be movably arranged on the fixing base. Or the first clamping wall 1 and the second clamping wall 3 can be movably arranged on the fixed seat at the same time.
The second clipping wall 3 is provided with a projection 302 matched with the sliding slot 143, and the projection 302 is arranged in the sliding slot 143. The slide groove 143 can guide the movement of the second chuck wall 3, and ensure stable movement. The cross section of the projection 302 is T-shaped and is matched with the shape of the sliding groove 143.
In this embodiment, the test fixture further includes a locking structure for locking the position of the second chuck wall 3. The locking structure can be matched with the second clamping wall 3, so that the piece to be tested 13 is stably clamped between the first clamping wall 1 and the second clamping wall 3, and the safety of the test is ensured.
Specifically, the fixing base includes base 141, the fixed curb plate 142 that sets up in base 141 one end, is equipped with the screw hole on the curb plate 142, and locking structure is suitable for to support on the second double-layered wall 3 including connecting the first threaded connection spare 6 in the screw hole, the one end of first threaded connection spare 6. After the second clamping wall 3 is moved to the right position to clamp the to-be-tested part 13, the first threaded connecting piece 6 is screwed down to enable the first threaded connecting piece 6 to firmly abut against the second clamping wall 3, so that the position of the second clamping wall 3 can be locked, the to-be-tested part 13 is stably clamped between the first clamping wall 1 and the second clamping wall 3, and the safety of the test is ensured.
As shown in fig. 1, a top cover 4 is connected to one end of the first threaded connector 6, and the top cover 4 is adapted to be in surface contact with the second chuck wall 3. The top cover 4 and the second chuck wall 3 have a large contact area, so that the top cover can firmly abut against the second chuck wall 3 to lock the position of the second chuck wall 3, and the to-be-tested piece 13 is stably clamped between the first chuck wall 1 and the second chuck wall 3, so that the safety of the test is ensured.
In order to facilitate the positioning and installation of the first threaded connector 6 and the top cover 4, as shown in fig. 10, one end of the first threaded connector 6 is provided with a step surface 601, as shown in fig. 11, the top cover 4 is provided with a connecting hole 401 matched with the step surface 601, and the top cover 4 is connected with the first threaded connector 6 through a screw 5.
The first double-wall 1, the second double-wall 3 and the side plate 142 are connected through at least one second threaded connecting piece 11. Wherein second threaded connection spare 11 has great length, and after second threaded connection spare 11 passed the through-hole on first double-layered wall 1, second double-layered wall 3, the curb plate 142 in proper order, screw up lock nut 12 on the both ends of second threaded connection spare 11, and when experimental, second threaded connection spare 11 applyed axial force to first double-layered wall 1 and curb plate 142, can strengthen experimental security and compressive strength.
One end of the fluid passage is provided with a threaded connection end 15. Specifically, in the present embodiment, the fluid passage is horizontally provided on the first chuck wall 1, and the threaded end 15 is provided at the left end of the fluid passage.
When the test tool works, a to-be-tested piece 13 is firstly placed on a supporting seat 8, the height of the supporting seat 8 is adjusted by rotating a movable nut 9, the central axis of the to-be-tested piece 13 is collinear with the circle centers of a first installation position and a second installation position, sealing rings are installed in the first installation position and the second installation position with corresponding sizes according to the diameter of the to-be-tested piece 13, then a fixing nut 10 is moved, the whole lifting mechanism moves along a sliding groove 143, one end of the to-be-tested piece 13 is in sealing contact with a first clamping wall 1, then a second clamping wall 3 is moved, the second clamping wall 3 is in sealing contact with the other end of the to-be-tested piece 13, and then a first threaded connecting piece 6 is rotated, so that the first threaded connecting piece 6 drives a top cover 4 to firmly abut against the second clamping wall 3, and the to-be-tested piece 13 is firmly clamped between the first clamping wall 1 and. The test pipeline is connected with the threaded connection end 15, and gas or liquid is introduced into the to-be-tested piece 13 through the fluid channel so as to detect the strength and the tightness of the to-be-tested piece 13.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (17)
1. The utility model provides an experimental frock, its characterized in that includes:
a fixed seat;
the first clamping wall (1) is arranged on the fixed seat;
the second clamping wall (3) is arranged on the fixed seat, the first clamping wall (1) and/or the second clamping wall (3) can move relative to the fixed seat, a fluid channel suitable for being communicated with a test pipeline is arranged on the first clamping wall (1) or the second clamping wall (3), and the fluid channel is suitable for being communicated with the interior of a to-be-tested part (13) clamped between the first clamping wall (1) and the second clamping wall (3);
a plurality of annular first mounting positions are arranged on the surface of the first clamping wall (1) opposite to the second clamping wall (3), the first mounting positions are suitable for mounting the annular sealing ring (2), and the first mounting positions are concentric;
the second double-layered wall (3) with be equipped with a plurality of annular second installation positions that are on the face that first double-layered wall (1) is relative, locate installation ring seal (2) on the second installation position, and it is a plurality of the second installation position is concentric.
2. Test fixture according to claim 1, wherein the first mounting location is a first recess (101) provided in the first chuck wall (1) and the second mounting location is a second recess (301) provided in the second chuck wall (3).
3. The test tool according to claim 1, further comprising a lifting structure adapted to support a test piece (13), wherein the lifting structure is arranged between the first chuck wall (1) and the second chuck wall (3) in a liftable manner.
4. The test tool of claim 3, wherein the lifting structure is movably disposed on the fixed base.
5. The test tool according to claim 4, wherein a sliding groove (143) is formed in the fixing seat, and the lower end of the lifting structure is arranged in the sliding groove (143).
6. The test tool of claim 5, wherein the lifting structure comprises:
the test device comprises a supporting seat (8), wherein the top end of the supporting seat (8) is suitable for supporting a piece to be tested (13), and the outer surface of the supporting seat (8) at least close to the bottom end of the supporting seat is provided with an external thread;
the movable nut (9) can be horizontally and rotatably arranged outside the supporting seat (8), and the movable nut (9) is provided with an internal thread matched with the external thread on the supporting seat (8);
the fixed nut (10) is sleeved at the bottom end of the supporting seat (8), an internal thread matched with the external thread on the supporting seat (8) is arranged in the fixed nut (10), the fixed nut (10) is slidably arranged in the sliding groove (143), and the lower end of the movable nut (9) is abutted to the upper end of the fixed nut (10).
7. The test tool according to claim 6, wherein the sliding groove (143) is a through groove, the cross section of the sliding groove (143) is T-shaped, and the fixing nut (10) is an I-shaped nut.
8. Test fixture according to claim 6, characterized in that the top end of the support base (8) is provided with a support pad (7).
9. The test tool according to claim 6, wherein the support base (8) comprises a support body (801) and two support arms (802) arranged at the top end of the support body (801), the support arms (802) are arranged obliquely, and a test piece (13) to be tested is accommodated between the two support arms (802).
10. Test fixture according to any one of claims 5-9, wherein the first chuck wall (1) is fixedly arranged on the holder, and the second chuck wall (3) is movably arranged on the holder.
11. The test tool according to claim 10, wherein a bump (302) matched with the sliding groove (143) is arranged on the second chuck wall (3), and the bump (302) is arranged in the sliding groove (143).
12. Test fixture according to claim 10, further comprising a locking structure for locking the position of the second chuck wall (3).
13. The test tool according to claim 12, wherein the fixing seat comprises a base (141) and a side plate (142) fixedly arranged at one end of the base (141), a threaded hole is formed in the side plate (142), the locking structure comprises a first threaded connecting piece (6) connected in the threaded hole, and one end of the first threaded connecting piece (6) is suitable for abutting against the second clamping wall (3).
14. Test fixture according to claim 13, wherein a top cover (4) is connected to one end of the first threaded connector (6), and the top cover (4) is adapted to be in surface contact with the second chuck wall (3).
15. The test tool according to claim 14, wherein a step surface (601) is arranged at one end of the first threaded connecting piece (6), a connecting hole (401) matched with the step surface (601) is arranged on the top cover (4), and the top cover (4) is connected with the first threaded connecting piece (6) through a screw (5).
16. Test fixture according to any one of claims 13 to 15, wherein the first clamping wall (1), the second clamping wall (3) and the side plate (142) are further connected by at least one second threaded connection (11).
17. Test tool according to any one of claims 1-9, wherein one end of the fluid channel is provided with a threaded connection end (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010487286.6A CN111579376A (en) | 2020-06-01 | 2020-06-01 | Test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010487286.6A CN111579376A (en) | 2020-06-01 | 2020-06-01 | Test tool |
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| Publication Number | Publication Date |
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| CN111579376A true CN111579376A (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010487286.6A Pending CN111579376A (en) | 2020-06-01 | 2020-06-01 | Test tool |
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|---|---|---|---|---|
| GB1380577A (en) * | 1971-06-01 | 1975-01-15 | Lucas Industries Ltd | Apparatus for testing the diametral sealing force of elastically deformable ring selas |
| CN106644454A (en) * | 2017-03-10 | 2017-05-10 | 成都南方电子仪表有限公司 | Pressure-tight test clamping device for multi-caliber pipeline flowmeter or valve |
| CN206912739U (en) * | 2016-08-11 | 2018-01-23 | 宁波圣龙浦洛西凸轮轴有限公司 | The clamping device of cam shaft vertical processing tool |
| CN208076308U (en) * | 2018-03-10 | 2018-11-09 | 台州市椒江建设工程质量检测中心有限公司 | A kind of pile pile beam test device |
| CN109612823A (en) * | 2018-11-20 | 2019-04-12 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of device detecting bellows stiff |
| CN208818446U (en) * | 2019-01-02 | 2019-05-03 | 山东宏邦流体控制技术有限公司 | A kind of valve seal system safety testing device |
| CN210141973U (en) * | 2019-05-24 | 2020-03-13 | 常静 | Clamping device for valve pressure test |
| CN210571237U (en) * | 2019-09-16 | 2020-05-19 | 天能帅福得能源股份有限公司 | Battery gas tightness testing arrangement |
-
2020
- 2020-06-01 CN CN202010487286.6A patent/CN111579376A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1380577A (en) * | 1971-06-01 | 1975-01-15 | Lucas Industries Ltd | Apparatus for testing the diametral sealing force of elastically deformable ring selas |
| CN206912739U (en) * | 2016-08-11 | 2018-01-23 | 宁波圣龙浦洛西凸轮轴有限公司 | The clamping device of cam shaft vertical processing tool |
| CN106644454A (en) * | 2017-03-10 | 2017-05-10 | 成都南方电子仪表有限公司 | Pressure-tight test clamping device for multi-caliber pipeline flowmeter or valve |
| CN208076308U (en) * | 2018-03-10 | 2018-11-09 | 台州市椒江建设工程质量检测中心有限公司 | A kind of pile pile beam test device |
| CN109612823A (en) * | 2018-11-20 | 2019-04-12 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of device detecting bellows stiff |
| CN208818446U (en) * | 2019-01-02 | 2019-05-03 | 山东宏邦流体控制技术有限公司 | A kind of valve seal system safety testing device |
| CN210141973U (en) * | 2019-05-24 | 2020-03-13 | 常静 | Clamping device for valve pressure test |
| CN210571237U (en) * | 2019-09-16 | 2020-05-19 | 天能帅福得能源股份有限公司 | Battery gas tightness testing arrangement |
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Application publication date: 20200825 |
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