CN111823157A - Clamp - Google Patents
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- Publication number
- CN111823157A CN111823157A CN201910317220.XA CN201910317220A CN111823157A CN 111823157 A CN111823157 A CN 111823157A CN 201910317220 A CN201910317220 A CN 201910317220A CN 111823157 A CN111823157 A CN 111823157A
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- Prior art keywords
- base
- hole
- connecting rod
- clamping
- side wall
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Clamps And Clips (AREA)
Abstract
The invention aims to provide a clamp. The clamp comprises a base, a chuck and a connecting assembly; the chuck comprises a seat body part and a clamping part, and the clamping part is used for clamping a test piece; the connecting assembly is used for locking the seat body part and the base; the connecting assembly comprises a connecting rod; since the connecting rod is clearance-fitted with the base through-hole and/or the collet through-hole, the connecting rod can move within the base through-hole and/or the collet through-hole in a direction perpendicular to a center line of the base through-hole and/or the collet through-hole. Therefore, when the orientation of the chuck on the base needs to be changed, the connecting assembly can be changed from a state of locking the seat body and the base to a state of releasing the seat body and the base, and at the moment, the clearance fit allows the seat body and the base to move relatively, so that the orientation of the chuck on the base is changed, and the adaptability of the clamp can be improved when the base is fixedly arranged. In addition, the connecting rod does not need to be taken out in the relative movement process, and the operation is convenient.
Description
Technical Field
The invention relates to a clamp, in particular to a test clamp for a hook type turbine guide vane.
Background
Ceramic matrix composites (ceramic matrix composites) have the characteristics of high temperature resistance, low density, low expansion coefficient, high specific strength, high specific modulus, oxidation resistance, ablation resistance, insensitivity to cracks, no catastrophic damage and the like, are increasingly and widely applied to preparation of hot-end structural components of new-generation aero-engines, and hot-end stator components become main application objects of the ceramic matrix composites at present due to simpler load conditions and lower load magnitude. The aeroengine is a high-speed rotating machine with a plurality of rotors and frequent working condition change, and parts (particularly blades) of the aeroengine bear very complex vibration load, so that the design of high cycle fatigue resistance of the parts becomes one of the key technologies restricting the development of high-performance engines. The design of the turbine guide vane for resisting high-cycle fatigue is developed, and the most important link is to obtain the actual high-cycle vibration fatigue performance of the guide vane component by developing a high-cycle vibration fatigue test.
In the vibration fatigue test, a test piece needs to be clamped and fixed by a vibration test clamp, or a vibration load needs to be applied. In order to meet the requirements of mounting and fixing the test piece, the clamping part on the vibration test fixture needs to be tightly attached to the mounting part of the part to be tested, so that the requirement on the machining precision of the mounting surface of the test piece and the vibration test fixture is high. Compared with metal, the ceramic matrix composite has high hardness and large brittleness, is difficult to achieve higher processing precision, has larger dimension error of a test piece mounting surface, and cannot meet the precision requirement of a vibration test on the test piece mounting surface. Therefore, when the high-dimensional precision vibration test fixture commonly used at the present stage is adopted to fixedly mount the ceramic matrix composite turbine guide vane, the ceramic matrix composite turbine guide vane cannot be well attached to a mounting surface of a test piece, and further good fixing boundary constraint cannot be provided for the test piece.
Disclosure of Invention
The invention aims to provide a clamp for clamping a test piece, which has the advantage of good adaptability to the dimension error of the test piece.
The clamp for achieving the purpose is used for clamping a test piece and comprises a base, a chuck and a connecting assembly; the clamping head comprises a seat body part and a clamping part, and the clamping part is used for clamping the test piece; the connecting assembly is used for locking the seat body part and the base; the connecting assembly comprises a connecting rod;
the base has a base through hole that is clearance fit with the connecting rod to enable the connecting rod to move within the base through hole in a direction perpendicular to a centerline of the base through hole, thereby allowing the collet to change orientation on the base; and/or
The seat portion has a collet through bore that is clearance fit with the connecting rod to enable the connecting rod to move within the collet through bore in a direction perpendicular to a centerline of the collet through bore to allow the collet to change orientation on the base.
In one embodiment, the number of the clamping heads is at least two, wherein one clamping head is used for clamping one connecting part of the test piece, and the other clamping head is used for clamping the other connecting part of the test piece.
In one embodiment, the connecting rod comprises a shank and an end; the end part is connected to one end of the rod part;
the rod part is in clearance fit with the through hole of the base; the other end of the rod part is in threaded fit connection with the chuck through hole, and the end part is used for abutting against the base so as to lock the base body part and the base; or
The rod part is in clearance fit with the chuck through hole; the other end of the connecting rod is in threaded fit connection with the base through hole, and the end part is used for abutting against the base body part so as to lock the base body part and the base.
In one embodiment, the connection assembly further comprises a nut member; the nut piece is in threaded fit connection with the connecting rod so as to lock the seat body part and the base.
In one embodiment, the connecting rod is in clearance fit with the base through hole, wherein one end of the connecting rod is connected with the base body part; the nut piece is in threaded fit connection with the other end of the connecting rod to abut against the base, so that the base body part and the base are locked; or
The connecting rod is in clearance fit with the chuck through hole, wherein one end of the connecting rod is connected with the base; the nut piece is in threaded fit connection with the other end of the connecting rod to abut against the seat body part, so that the seat body part and the base are locked.
In one embodiment, the nut member comprises a first nut member and a second nut member; the connecting rod penetrates through the base through hole and the chuck through hole;
the first nut piece and the second nut piece are respectively in threaded fit connection with two ends of the connecting rod and respectively abut against the seat body part and the base in opposite directions, and therefore the seat body part and the base are locked.
In one embodiment, the clip portion has a bottom wall, a first side wall and a second side wall; the bottom wall is connected with the seat body part; the first side wall and the second side wall are respectively connected with the bottom wall;
the bottom wall the first lateral wall with the second lateral wall prescribes a limit to the draw-in groove jointly, the draw-in groove be used for with the connecting portion joint cooperation of test piece.
In one embodiment, the clamp further comprises a first top member and a second top member; the first side wall has a projection projecting toward the second side wall;
the bulge is provided with a first abutting surface and a second abutting surface, the first abutting surface is opposite to the second side wall, and the second abutting surface is opposite to the bottom wall;
the first tightening piece penetrates through the second side wall and is used for tightening the connecting part on the first abutting surface;
the second jacking piece penetrates through the bottom wall and is used for jacking the connecting part on the second abutting surface.
In one embodiment, the first top member is in threaded mating connection with the second sidewall; and/or the second tightening member is in threaded fit connection with the bottom wall.
In one embodiment, the base has a relief through hole; the second top piece with the cooperation of stepping down is stepped down to the through-hole.
The positive progress effects of the invention are as follows: the clamp provided by the invention comprises a base, a clamping head and a connecting assembly; the chuck comprises a seat body part and a clamping part, and the clamping part is used for clamping a test piece; the connecting assembly is used for locking the seat body part and the base; the connecting assembly comprises a connecting rod; since the connecting rod is clearance-fitted with the base through-hole and/or the collet through-hole, the connecting rod can move within the base through-hole and/or the collet through-hole in a direction perpendicular to a center line of the base through-hole and/or the collet through-hole. Therefore, when the orientation of the chuck on the base needs to be changed, the connecting assembly can be changed from a state of locking the seat body and the base to a state of releasing the seat body and the base, and at the moment, the clearance fit allows the seat body and the base to move relatively, so that the orientation of the chuck on the base is changed, and the adaptability of the clamp can be improved when the base is fixedly arranged. In addition, the connecting rod does not need to be taken out in the relative movement process, and the operation is convenient.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which:
FIG. 1 is a schematic view of a test piece;
FIG. 2 is a schematic view of a test piece being held by a clamp;
FIG. 3 is a schematic view of a test piece being held by a fixture, showing the bottom surface of the base of the fixture;
FIG. 4 is a front view of a test piece being held by a clamp;
FIG. 5 is a side view of a test piece being held by a clamp;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic view of the base through hole in clearance fit with the connecting rod;
FIG. 8 is a cross-sectional view of a portion of the seat portion and base;
FIG. 9 is a partial cross-sectional view of the seat portion and base showing the connecting rod.
Detailed Description
The present invention is further described in the following description with reference to specific embodiments and the accompanying drawings, wherein the details are set forth in order to provide a thorough understanding of the present invention, but it is apparent that the present invention can be embodied in many other forms different from those described herein, and it will be readily appreciated by those skilled in the art that the present invention can be implemented in many different forms without departing from the spirit and scope of the invention.
The following discloses embodiments or examples of various implementations of the subject technology. Specific examples of components and arrangements are described below to simplify the present disclosure, but these are merely examples and do not limit the scope of the invention. For example, if a first feature is formed over or on a second feature described later in the specification, this may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed between the first and second features, such that the first and second features may not be in direct contact. Additionally, reference numerals and/or letters may be repeated among the various examples throughout this disclosure. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. Further, when a first element is described as being coupled or coupled to a second element, the description includes embodiments in which the first and second elements are directly coupled or coupled to each other, as well as embodiments in which one or more additional intervening elements are added to indirectly couple or couple the first and second elements to each other.
It should be noted that fig. 1-9 are exemplary only, are not drawn to scale, and should not be construed as limiting the scope of the invention as actually claimed.
Fig. 1 shows a test piece 800 in one embodiment of the invention, the test piece 800 may be, but is not limited to, a hook-type turbine vane having two grips 800a, also referred to as a front hook and a rear hook, respectively. In other embodiments, not shown, the test piece 800 may have only one clamping portion 800 a.
As shown in fig. 2, 3, 4, 5, and 6, the clamping portion 800a is used to be clamped by the clamp 900. The fixture 900 comprises a base 1, a chuck 2 and a connecting assembly; the chuck 2 comprises a seat part 20 and a clamping part 21, wherein the clamping part 21 is used for clamping the test piece 800; the connecting assembly is used for detachably connecting the body 20 and the base 1. In this embodiment, the number of the chucks 2 is two, and the two clamping portions 800a of the test piece 800 are fixed, respectively. The number of the collet 2 may also be one or more according to the shape of the test piece 800.
As shown in fig. 2 and 6, in one embodiment, the clamping portion 21 has a groove 21a, and the groove 21a is snap-fitted with the clamping portion 800 a. Specifically, the clip portion 21 has a bottom wall 210, a first side wall 211, and a second side wall 212; the bottom wall 210 is connected with the seat body part 20; the first sidewall 211 and the second sidewall 212 are respectively connected to the bottom wall 210; the bottom wall 210, the first side wall 211 and the second side wall 212 together define a clamping groove 21a, and the clamping groove 21a is used for clamping fit with the connecting part 800a of the test piece 800. In other embodiments, not shown, the clamping portion 21 may also fix the clamping portion 800a by other means.
To improve the adaptability of the jig 900, the collet 2 is arranged to be able to change its orientation on the base 1. In particular, as shown in fig. 7, 8 and 9, the connecting assembly comprises a connecting rod 3; the base 1 is provided with a base through hole 1a, and the base through hole 1a is in clearance fit with the connecting rod 3 so that the connecting rod 3 can move in the base through hole 1a in a direction perpendicular to the center line of the base through hole 1a, thereby allowing the chuck 2 to change the orientation on the base 1; and/or the housing part 20 has a collet through hole 20a, the collet through hole 20a being clearance-fitted with the connecting rod 3 so that the connecting rod 3 can move within the collet through hole 20a in a direction perpendicular to a center line of the collet through hole 20a, thereby allowing the collet 2 to change its orientation on the base 1.
Since the connecting rod 3 is clearance-fitted with the seat through-hole 1a and/or the cartridge through-hole 20a, the connecting rod 3 can move within the seat through-hole 1a and/or the cartridge through-hole 20a in a direction perpendicular to the center line of the seat through-hole 1a and/or the cartridge through-hole 20 a. Therefore, when the orientation of the collet 2 on the base 1 needs to be changed, the connecting assembly can be switched from a state of locking the seat portion 20 and the base 1 to a state of releasing the seat portion 20 and the base 1, and at this time, the clearance fit allows the seat portion 20 and the base 1 to move relatively, so that the orientation of the collet 2 on the base 1 can be changed, and the adaptability of the clamp 900 can be improved when the base 1 is fixedly arranged and is not easy to move. In addition, the connecting rod 3 does not need to be taken out in the relative movement process, and the operation is convenient.
When the number of the chucks 2 is plural, since the chucks 2 are provided so as to be able to change the orientation on the base 1, the interval between the two chucks 2 is adjustable, which improves the adaptability of the jig 900 when the distance between the two clamping portions 800a of the test piece 800 deviates.
The connecting rod 3 is in clearance fit with at least one of the base through hole 1a and the chuck through hole 20a, so that the seat part 20 can slide relative to the base 1. In the embodiment shown in fig. 8 and 9, the connecting rod 3 is clearance-fitted to the base through hole 1 a. In other embodiments, not shown, the connecting rod 3 may also be clearance fitted with the collet through-hole 20 a. In a further embodiment, not shown, the connecting rod 3 may also be clearance fitted with both the base through hole 1a and the collet through hole 20 a.
In a more specific embodiment, the connecting rod 3 comprises a shank 31 and an end 32; the end portion 32 is connected to one end of the rod portion 31; the rod part 31 is in clearance fit with the base through hole 1 a; the other end of the rod part 31 is in threaded fit connection with the chuck through hole 20a, and the end part 32 is used for abutting against the base 1 so as to lock the base part 20 and the base 1; or the rod part 31 is in clearance fit with the chuck through hole 20 a; the other end of the connecting rod 3 is connected with the base through hole 1a in a threaded fit manner, and the end portion 32 is used for abutting against the base portion 20 so as to lock the base portion 20 and the base 1. This embodiment makes the structure of the connecting assembly simple, and only the connecting rod 3 is needed to lock the seat body 20 and the base 1. In this embodiment, the connecting rod 3 may be a bolt or a screw. By rotating the end portion 32 in the forward direction, the end portion 32 can be pressed against the base 1 or the seat portion 20, so that the connecting assembly is in a state of locking the seat portion 20 and the base 1. By rotating the end portion 32 in the opposite direction, the end portion 32 can be moved away from the base 1 or the seat portion 20, thereby putting the connecting assembly in a state of releasing the seat portion 20 and the base 1.
In one embodiment, not shown, the coupling assembly further comprises a nut member; the nut member is screw-fittingly connected with the connecting rod 3 to lock the seat portion 20 and the base 1. This embodiment contributes to an improvement in the locking force to the seat body portion 20 and the base 1. In this embodiment, by rotating the nut member in the forward direction, the nut member can be pressed against the base 1 or the seat portion 20, so that the connecting assembly is in a state of locking the seat portion 20 and the base 1. By rotating the nut member in the reverse direction, the nut member can be moved away from the base 1 or the seat portion 20, so that the coupling assembly is in a state of releasing the seat portion 20 and the base 1.
There are also various embodiments for using a nut member to provide the locking force.
In one embodiment, the connecting rod 3 is in clearance fit with the base through hole 1a, wherein one end of the connecting rod 3 is connected with the base body part 20; the nut piece is in threaded fit connection with the other end of the connecting rod 3 to abut against the base 1, so that the base body part 20 and the base 1 are locked; or the connecting rod 3 is in clearance fit with the chuck through hole 20a, wherein one end of the connecting rod 3 is connected with the base 1; the nut member is connected with the other end of the connecting rod 3 in a threaded fit manner to abut against the seat body part 20, so that the seat body part 20 and the base 1 are locked. In this embodiment, only one nut member can be used for one connecting rod 3, thus making the structure of the connecting assembly simple. The connection mode of one end of the connecting rod 3 and the seat body part 20 or the base 1 can be shaft hole tight fit connection, threaded connection and the like, and one end of the connecting rod 3 and the seat body part 20 or the base 1 can also be integrally formed. In this embodiment, the connecting rod 3 may be a threaded stud having an external thread at one end, which is in threaded engagement with the nut member.
In another embodiment, the nut member comprises a first nut member and a second nut member; the connecting rod 3 is arranged in the base through hole 1a and the chuck through hole 20a in a penetrating way; the first nut member and the second nut member are respectively in screw-fit connection with both ends of the connecting rod 3 to respectively abut against the seat body portion 20 and the base 1 in opposite directions, thereby locking the seat body portion 20 and the base 1. In this embodiment, the connecting rod 3 may be a stud having external threads at both ends, and both ends of the connecting rod 3 are screw-fittingly connected to the first nut member and the second nut member, respectively.
To further improve the adaptability of the clamp 900, the clamp 900 further comprises a first top member 4 and a second top member 5. The first sidewall 211 has a protrusion 211a protruding toward the second sidewall 212; the protrusion 211a has a first abutting surface 211a-1 and a second abutting surface 211a-2, the first abutting surface 211a-1 is disposed opposite to the second sidewall 212, and the second abutting surface 211a-2 is disposed opposite to the bottom wall 210; the first abutting piece 4 is arranged in the second side wall 212 in a penetrating manner and used for abutting the connecting part 800a against the first abutting surface 211 a-1; the second tightening member 5 is inserted into the bottom wall 210 for tightening the connecting portion 800a against the second abutting surface 211 a-2. This arrangement enables the jig 900 to accommodate variations in machining accuracy that occur in the connection portion 800 a.
In a more specific embodiment, first top member 4 is threadably engaged with second sidewall 212; and/or the second fastening member 5 is threadably engaged with the bottom wall 210.
As shown in fig. 3 and 6, the base 1 has a relief through hole 1 b; the second top member 5 and the abdicating through hole 1b are in abdicating fit so as to facilitate installation of the second top member 5.
As shown in fig. 2 and 3, the number of the first tightening members 4 is plural and is distributed along the length direction of the clamping groove 21 a; and/or the number of the second tightening members 5 is plural and distributed along the length direction of the catching groove 21 a.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make modifications and variations without departing from the spirit and scope of the present invention.
Claims (10)
1. A clamp is used for clamping a test piece (800), and is characterized in that the clamp (900) comprises a base (1), a chuck (2) and a connecting assembly; the clamping head (2) comprises a seat part (20) and a clamping part (21), wherein the clamping part (21) is used for clamping the test piece (800); the connecting assembly is used for connecting the seat body part (20) and the base (1); the connecting assembly comprises a connecting rod (3);
the base (1) is provided with a base through hole (1a), the base through hole (1a) is in clearance fit with the connecting rod (3) so that the connecting rod (3) can move in the base through hole (1a) in a direction perpendicular to the center line of the base through hole (1a), and therefore the chuck (2) is allowed to change the direction on the base (1); and/or
The seat portion (20) has a collet through hole (20a), the collet through hole (20a) being clearance-fitted with the connecting rod (3) so that the connecting rod (3) can move within the collet through hole (20a) in a direction perpendicular to a center line of the collet through hole (20a), thereby allowing the collet (2) to change an orientation on the base (1).
2. The clamp according to claim 1, characterized in that the number of said gripping heads (2) is at least two, one for gripping one connecting portion (800a) of said test piece (800) and the other for gripping the other connecting portion (800a) of said test piece (800).
3. The clamp according to claim 1, characterized in that said connecting rod (3) comprises a shank (31) and an end (32); the end part (32) is connected to one end of the rod part (31);
the rod part (31) is in clearance fit with the base through hole (1 a); the other end of the rod part (31) is in threaded fit connection with the chuck through hole (20a), and the end part (32) is used for abutting against the base (1) so as to lock the base part (20) and the base (1); or
The rod part (31) is in clearance fit with the chuck through hole (20 a); the other end of the connecting rod (3) is in threaded fit connection with the base through hole (1a), and the end portion (32) is used for abutting against the base portion (20) so as to lock the base portion (20) and the base (1).
4. The clamp of claim 1, wherein said connection assembly further comprises a nut member; the nut piece is in threaded fit connection with the connecting rod (3) so as to lock the seat body part (20) and the base (1).
5. The clamp according to claim 4, characterized in that the connecting rod (3) is clearance fitted with the base through hole (1a), wherein one end of the connecting rod (3) is connected with the base portion (20); the nut piece is in threaded fit connection with the other end of the connecting rod (3) to abut against the base (1) so as to lock the base part (20) and the base (1); or
The connecting rod (3) is in clearance fit with the chuck through hole (20a), wherein one end of the connecting rod (3) is connected with the base (1); the nut piece is in threaded fit connection with the other end of the connecting rod (3) to abut against the seat body part (20), so that the seat body part (20) and the base (1) are locked.
6. The clamp of claim 4, wherein the nut member includes a first nut member and a second nut member; the connecting rod (3) is arranged in the base through hole (1a) and the chuck through hole (20a) in a penetrating mode;
the first nut piece and the second nut piece are respectively in threaded fit connection with two ends of the connecting rod (3) and respectively abut against the seat body part (20) and the base (1) in opposite directions, and therefore the seat body part (20) and the base (1) are locked.
7. The clamp according to claim 1, wherein the clamping portion (21) has a bottom wall (210), a first side wall (211) and a second side wall (212); the bottom wall (210) is connected with the seat part (20); the first side wall (211) and the second side wall (212) are respectively connected with the bottom wall (210);
the bottom wall (210), the first side wall (211) and the second side wall (212) jointly define a clamping groove (21a), and the clamping groove (21a) is used for being in clamping fit with the connecting portion (800a) of the test piece (800).
8. The clamp according to claim 7, characterized in that the clamp (900) further comprises a first top member (4) and a second top member (5); the first side wall (211) has a protrusion (211a) protruding toward the second side wall (212);
the bulge (211a) is provided with a first abutting surface (211a-1) and a second abutting surface (211a-2), the first abutting surface (211a-1) is arranged opposite to the second side wall (212), and the second abutting surface (211a-2) is arranged opposite to the bottom wall (210);
the first abutting piece (4) is arranged in the second side wall (212) in a penetrating manner and used for abutting the connecting part (800a) on the first abutting surface (211 a-1);
the second top member (5) is arranged in the bottom wall (210) in a penetrating manner and used for pushing the connecting part (800a) to the second abutting surface (211 a-2).
9. The clamp according to claim 8, wherein said first tightening member (4) is in threaded engagement with said second side wall (212); and/or the second tightening member (5) is in threaded fit connection with the bottom wall (210).
10. The clamp according to claim 8, characterized in that said base (1) has a yielding through hole (1 b); the second jacking piece (5) and the yielding through hole (1b) are in yielding fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317220.XA CN111823157B (en) | 2019-04-19 | 2019-04-19 | Clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910317220.XA CN111823157B (en) | 2019-04-19 | 2019-04-19 | Clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111823157A true CN111823157A (en) | 2020-10-27 |
| CN111823157B CN111823157B (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910317220.XA Active CN111823157B (en) | 2019-04-19 | 2019-04-19 | Clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111823157B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20303039U1 (en) * | 2003-02-24 | 2003-04-30 | Felsberg Juergen | Clamping means for work piece has a slider mounting with selected height clamping arm and threaded adjuster |
| CN104044122A (en) * | 2014-05-30 | 2014-09-17 | 爱佩仪中测（成都）精密仪器有限公司 | Pistol drill clamping mechanism with position of drill to be changed conveniently |
| CN204330297U (en) * | 2014-11-28 | 2015-05-13 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of test fixture |
| CN206841677U (en) * | 2017-06-19 | 2018-01-05 | 广船国际有限公司 | A kind of moulding bed |
| CN207077359U (en) * | 2017-08-10 | 2018-03-09 | 江苏鸿华特种装备有限公司 | A kind of composite machine fixed clamping device |
-
2019
- 2019-04-19 CN CN201910317220.XA patent/CN111823157B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20303039U1 (en) * | 2003-02-24 | 2003-04-30 | Felsberg Juergen | Clamping means for work piece has a slider mounting with selected height clamping arm and threaded adjuster |
| CN104044122A (en) * | 2014-05-30 | 2014-09-17 | 爱佩仪中测（成都）精密仪器有限公司 | Pistol drill clamping mechanism with position of drill to be changed conveniently |
| CN204330297U (en) * | 2014-11-28 | 2015-05-13 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of test fixture |
| CN206841677U (en) * | 2017-06-19 | 2018-01-05 | 广船国际有限公司 | A kind of moulding bed |
| CN207077359U (en) * | 2017-08-10 | 2018-03-09 | 江苏鸿华特种装备有限公司 | A kind of composite machine fixed clamping device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111823157B (en) | 2022-04-12 |
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