CN113814913B - Supporting jig - Google Patents
Supporting jig Download PDFInfo
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- CN113814913B CN113814913B CN202111281020.7A CN202111281020A CN113814913B CN 113814913 B CN113814913 B CN 113814913B CN 202111281020 A CN202111281020 A CN 202111281020A CN 113814913 B CN113814913 B CN 113814913B
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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
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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
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Abstract
The invention relates to a supporting jig, comprising: a supporting body (1), a mounting connecting part (2) connected with the supporting body (1), a positioning connecting part (3) detachably mounted on the supporting body (1), and a rotary support (4); the supporting body (1) is of a long strip structure, the installation connecting parts (2) are arranged on one side of the supporting body (1) in the width direction in an offset mode, and the positioning connecting parts (3) are arranged at two ends of the supporting body (1) in the length direction respectively; the rotary support (4) is arranged in an offset manner in the width direction of the support main body (1), and the rotary support (4) is connected with the installation connecting part (2), or the rotary support (4) is connected with the installation connecting part (2) and the support main body (1).
Description
Technical Field
The invention relates to the field of machinery, in particular to a supporting jig.
Background
In the field of machine manufacturing, the workpieces produced usually require effective testing of the workpiece work load before commissioning, and mass production applications are only possible if the test results obtained are meeting the requirements involved. The test items of different mechanical parts are different, and for most mechanical parts, the situation that the mechanical parts are subjected to working loads in multiple directions simultaneously in the working process is common. For the situation, because the stress inside the mechanical part is complex, the mechanical part is usually realized by adopting an independent test mode in the test process, and the test result is incomplete. In addition, the existing independent testing mode not only leads to incomplete measuring results for irregular structural members, but also frequently causes the problem of large deviation of multiple measuring results due to different clamping modes.
Disclosure of Invention
The invention aims to provide a supporting jig which is used for testing a cross eccentric irregular structural member and loading axial force and rotating torque force simultaneously.
In order to achieve the above object, the present invention provides a supporting jig, including: the supporting body, the installation connecting part connected with the supporting body, the positioning connecting part detachably installed on the supporting body and the rotary support;
the supporting body is of a long strip structure, the installation connecting parts are arranged on one side of the supporting body in the width direction in an offset mode, and the positioning connecting parts are arranged at two ends of the supporting body in the length direction respectively;
the rotary support is arranged in an offset manner in the width direction of the support main body and is connected with the installation connecting part, or the rotary support is connected with the installation connecting part and the support main body.
According to one aspect of the invention, the two opposite ends of the supporting body are respectively provided with a supporting structure for connecting the positioning connecting parts;
the supporting structure is a strip-shaped structure and is arranged perpendicular to the supporting main body;
a first positioning hole position and a second positioning hole position are arranged on the supporting structure;
the first positioning hole position penetrates through the supporting structure along the thickness direction of the supporting structure;
the second positioning hole penetrates through the supporting structure along the width direction of the supporting structure.
According to an aspect of the present invention, the second positioning holes are respectively formed at opposite ends of the support structure in a length direction of the support structure, and the first positioning hole is formed at a middle position of the support structure.
According to one aspect of the invention, the positioning connection part abuts against the supporting structure in the thickness direction and the width direction of the supporting structure respectively, and the positioning connection part is connected with the supporting structure by using a pin shaft assembly.
According to one aspect of the invention, the positioning connection comprises a first positioning structure and a second positioning structure;
the first positioning structure is a strip-shaped structure, and one side of the first positioning structure is abutted against one side of the supporting structure in the width direction;
one end of the second positioning structure is fixedly supported on the upper side of the first positioning structure in the thickness direction, the other end of the second positioning structure is a free end which freely extends along the direction far away from the first positioning structure, and the free end can abut against the upper side of the supporting structure in the thickness direction;
a first connecting hole site is arranged on the first positioning structure, and a second connecting hole site is arranged on the free end of the second positioning structure;
the first connecting hole position and the second positioning hole position are arranged correspondingly, and the second connecting hole position and the first positioning hole position are arranged correspondingly.
According to one aspect of the invention, the second positioning structure comprises: a bottom plate, a vertical plate and a base plate;
the two ends of the vertical plate in the width direction of the bottom plate are respectively provided, and the vertical plate is positioned on the same side of the bottom plate;
the base plate and the vertical plate are correspondingly arranged on the inner side of the vertical plate, and the base plate is detachably connected with the vertical plate.
According to one aspect of the invention, the base plate is provided with a bending connecting part which is used for being detachably connected with one end of the vertical plate far away from the bottom plate.
According to one aspect of the invention, the pin assembly comprises: a shaft body and a clamp spring;
one end of the shaft body is provided with an annular bulge, and the other end of the shaft body is provided with a clamp spring groove for mounting the clamp spring;
the spacing distance between the annular protrusion and the clamp spring groove is matched with the sum of the widths of the supporting structure and the first positioning structure;
the diameter of the shaft body is matched with the aperture of the first connecting hole site, the aperture of the first positioning hole site, the aperture of the second connecting hole site and the aperture of the second positioning hole site.
According to one aspect of the invention, the mounting connection and the supporting body are integral;
the rotational support includes: the support rotating shaft is used for supporting a thrust roller bearing of the support rotating shaft and a rotating shaft clamp spring;
the support shaft includes: a shaft body;
a supporting disc is coaxially arranged at one end of the shaft body, and a clamp spring mounting groove for mounting the rotating shaft clamp spring is formed in the side surface of the other end of the shaft body;
a supporting boss is coaxially arranged on one side of the supporting disc, which is far away from the shaft body, and the shaft body;
one side of the supporting disc is provided with a tangent plane, and the distance between the tangent plane and the central axis of the shaft body is smaller than the radius of the shaft body.
According to an aspect of the present invention, the mounting connection portion or the mounting connection portion and the support main body is provided with a stepped through hole for inserting the thrust roller bearing;
the stepped through-hole includes: the thrust roller bearing comprises a first stepped hole, a second stepped hole, a third stepped hole and a fourth stepped hole, wherein the first stepped hole is used for being connected with the thrust roller bearing in an embedded mode;
the shaft body is rotationally connected with the third stepped hole;
the diameters of the first stepped hole, the second stepped hole and the third stepped hole are sequentially decreased in the axial direction of the stepped through hole, and the diameter of the third stepped hole is matched with that of the shaft body;
the diameter of the fourth stepped hole is larger than that of the third stepped hole.
According to one scheme of the invention, the supporting jig can realize the installation and measurement of different structural members by replacing different positioning connecting parts, and has high flexibility.
According to one scheme of the invention, the supporting jig is used for connecting and fixing the product through the positioning connecting part, and is used for bearing and supporting the gravity center of the product through the eccentrically arranged rotating bearing, and the stable bearing effect on irregular products is effectively achieved in the mode that the connecting and fixing position and the gravity center supporting position are arranged in an offset mode, so that one-time measurement under various test scenes such as the vertical direction, the rotating direction and the like can be realized by means of the supporting jig, the problems of repeated clamping of the product and low test efficiency are effectively avoided.
According to one scheme of the invention, the rotary bearing is arranged on the bearing main body in an offset manner, so that the center of gravity of the product can be supported on the rotary bearing after the product is connected with the positioning connecting part, and thus, under the condition that the product is installed on the bearing jig, the stability of the center of gravity of the combination formed by the bearing jig and the product is effectively ensured, and further, the rotary bearing is beneficial to ensuring the operation stability and the operation precision of other testing or processing equipment adopting the bearing jig.
According to one scheme of the invention, the limit support in the vertical direction is realized through the arranged rotating support, and the rotating support can rotate freely in the horizontal direction, so that when a product is installed on the supporting jig, the arranged rotating support cannot generate the over-positioning condition on the product in the horizontal direction, and further the invention is beneficial to ensuring the operation stability and the operation precision of other testing or processing devices adopting the invention. In addition, the rotary support arranged in the scheme can also effectively eliminate or inhibit the internal stress of an irregular product generated on the traditional support jig.
According to one scheme of the invention, the second positioning hole sites and the first positioning hole sites are uniformly distributed at equal intervals in the length direction of the supporting structure, and three-point positioning in two directions is realized by arranging the first positioning hole sites in the middle position, so that the positioning accuracy is high, the stability is good, the arrangement number of the hole sites is effectively reduced, the processing accuracy of the scheme is ensured, and the accumulated error is eliminated.
According to one scheme of the invention, the supporting structure is simple in structure, the positioning connecting part can be accurately positioned by utilizing two vertical side surfaces of the supporting structure, and meanwhile, the positioning precision and the installation stability are ensured by combining a combined connection mode of the positioning hole position and the pin shaft assembly, and meanwhile, the installation positioning structure is effectively simplified, so that the quick disassembly, assembly and replacement of the positioning connecting part are facilitated.
According to one scheme of the invention, the diameter of the third stepped hole is matched with that of the shaft body, so that the shaft body is rotatably connected with the third stepped hole, the stepped through hole can limit the shaft body to further avoid swinging of the shaft body, the axial supporting precision is effectively ensured, and the supporting precision is effectively ensured.
According to one scheme of the invention, the supporting jig realizes stable installation of corresponding structural parts, can realize two loading modes of axial loading and rotational torque loading in the measuring process, can be simultaneously carried out, and realizes the flexibility and the accuracy of measurement.
According to one scheme of the invention, the supporting jig can be independently used as an axial loading clamp, and can realize quick replacement and disassembly.
Drawings
FIG. 1 is a block diagram schematically illustrating a supporting jig according to an embodiment of the present invention;
fig. 2 is a bottom view schematically showing a supporting jig according to an embodiment of the present invention;
FIG. 3 is a block diagram schematically illustrating a support jig removing positioning connection according to an embodiment of the present invention;
FIG. 4 is a block diagram schematically illustrating a positioning connection according to an embodiment of the present invention;
FIG. 5 is a block diagram schematically illustrating a pin assembly according to an embodiment of the present invention;
FIG. 6 is a block diagram schematically illustrating a rotary bearing according to an embodiment of the present invention;
FIG. 7 is a block diagram schematically illustrating a support shaft according to an embodiment of the present invention;
fig. 8 is a structural view schematically showing a support body and a mounting connection portion according to an embodiment of the present invention.
Detailed Description
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 embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
In describing embodiments of the present invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship that is based on the orientation or positional relationship shown in the associated drawings, which is for convenience and simplicity of description only, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, the above-described terms should not be construed as limiting the present invention.
The present invention is described in detail below with reference to the drawings and the specific embodiments, which are not repeated herein, but the embodiments of the present invention are not limited to the following embodiments.
Referring to fig. 1 and 2, according to an embodiment of the present invention, a supporting jig includes: the support device comprises a support body 1, an installation connecting part 2 connected with the support body 1, a positioning connecting part 3 detachably installed on the support body 1, and a rotary support 4. In the present embodiment, the support body 1 has a long structure, the attachment connection portions 2 are provided offset to one side in the width direction of the support body 1, and the positioning connection portions 3 are provided at both ends in the longitudinal direction of the support body 1. In the present embodiment, the rotation support 4 is provided offset in the width direction of the support body 1, and the rotation support 4 is connected to the attachment link portion 2, or the rotation support 4 is connected to the attachment link portion 2 and the support body 1.
Through the arrangement, the detachable positioning connecting parts 3 can be used for mounting and replacing different types of positioning connecting parts 3 so as to adapt to the mounting of different types of products, and the use flexibility of the invention is effectively improved. In addition, the rotary bearing 4 is arranged on the bearing main body 1 in an offset manner, so that the center of gravity of the product can be supported on the rotary bearing 4 after the product is connected with the positioning connecting part 3, the center of gravity of the combination formed by the bearing jig and the product is effectively ensured to be stable under the condition that the product is installed on the bearing jig, and the rotary bearing is further beneficial to ensuring the operation stability and the operation precision of other testing or processing equipment adopting the bearing jig.
Through the arrangement, the limiting support in the vertical direction is realized through the arranged rotating support 4, and the rotating support can rotate freely in the horizontal direction, so that when a product is installed on the supporting jig, the arranged rotating support 4 cannot generate the over-positioning condition on the product in the horizontal direction, and further, the invention is beneficial to ensuring the operation stability and the operation precision of other testing or processing devices adopting the invention. In addition, the rotary support arranged in the scheme can also effectively eliminate or inhibit the internal stress of an irregular product generated on the traditional support jig.
Referring to fig. 1 and 3, according to an embodiment of the present invention, the supporting body 1 is provided at opposite ends thereof with supporting structures 11 for connecting the positioning connection parts 3, respectively. In the present embodiment, the support structure 11 is an elongated structure, and is provided perpendicular to the support body 1. In the present embodiment, the support structure 11 is provided with a first positioning hole 111 and a second positioning hole 112; the first positioning hole 111 penetrates the support structure 11 in the thickness direction of the support structure 11; the second positioning hole 112 penetrates the support structure 11 in the width direction of the support structure 11.
In the present embodiment, the axial directions of the first positioning hole 111 and the second positioning hole 112 are perpendicular to each other. For achieving accurate positioning in both directions.
Referring to fig. 1 and 3, according to an embodiment of the present invention, the second positioning hole sites 112 are respectively disposed at opposite ends of the support structure 11 in a length direction of the support structure 11, and the first positioning hole site 111 is located at a middle position of the support structure 11.
Through the above arrangement, the second positioning hole 112 and the first positioning hole 111 are uniformly distributed in the length direction of the supporting structure 11 at equal intervals, and three-point positioning in two directions is realized by the mode of arranging the first positioning hole 111 in the middle position, so that the positioning accuracy is high, the stability is good, the number of the holes is effectively reduced, the processing accuracy of the scheme is guaranteed, and the accumulated error is eliminated.
Referring to fig. 1, 2, 3 and 4, according to an embodiment of the present invention, the positioning connection portion 3 abuts against the supporting structure 11 in the thickness direction and the width direction of the supporting structure 11, respectively, and the positioning connection portion 3 is connected to the supporting structure 11 using the pin assembly 5.
Through the arrangement, the supporting structure 11 is simple in structure, the accurate positioning of the positioning connecting portion 3 can be realized by utilizing two vertical side faces of the supporting structure, the positioning hole position and the pin shaft assembly are combined, the positioning accuracy and the installation stability are guaranteed, meanwhile, the installation positioning structure is effectively simplified, and further the quick disassembly, assembly and replacement of the positioning connecting portion 3 are facilitated.
Referring to fig. 1 and 4, according to one embodiment of the present invention, the positioning connection portion 3 includes a first positioning structure 31 and a second positioning structure 32. In the present embodiment, the first positioning structure 31 is an elongated structure, and one side thereof abuts against one side in the width direction of the support structure 11; one end of the second positioning structure 32 is fixedly supported at the upper side of the first positioning structure 31 in the thickness direction, and the other end is a free end freely extending in the direction away from the first positioning structure 31 and capable of abutting against the upper side of the supporting structure 11 in the thickness direction. In the present embodiment, the first positioning structure 31 and the second positioning structure 32 are integrally provided.
In the present embodiment, the first positioning structure 31 is provided with a first connection hole 31a, and the free end of the second positioning structure 32 is provided with a second connection hole 32a. In the present embodiment, the first connection hole 31a is disposed corresponding to the second positioning hole 112, and the second connection hole 32a is disposed corresponding to the first positioning hole 111. In the present embodiment, when the first positioning structure 31 abuts against one side of the supporting structure 11 in the width direction, and the free end of the second positioning structure 32 abuts against the upper side of the supporting structure 11 in the thickness direction, the first connecting hole 31a and the first positioning hole 111 are in the same axial position, and the second connecting hole 32a and the second positioning hole 112 are also in the same axial position, so that the fixed connection between the positioning connection portion 3 and the supporting structure 11 can be realized by saving lessons after connecting the corresponding holes in series with each other through the pin assembly 5 (see fig. 3 and 5).
In this embodiment, in order to avoid the protrusion of the pin shaft assembly 5, each hole position can be correspondingly set as a stepped hole, so that a space for accommodating the protruding part is provided, and the flat state of the connection position is ensured.
In this embodiment, the hole diameters of the positioning hole site and the connecting hole site may be set to be different.
Referring to fig. 1 and 4, according to one embodiment of the present invention, the second positioning structure 32 includes: bottom plate 321, riser 322, backing plate 323. In this embodiment, vertical plates 322 are respectively disposed at two ends of bottom plate 321 in the width direction, and vertical plates 322 are located at the same side of bottom plate 321; the vertical plate 322 and the bottom plate 321 are fixedly connected to form a concave structure, so that the groove in the middle can conveniently mount and position the product.
In this embodiment, backing plate 323 is disposed inside riser 322 corresponding to riser 322, and backing plate 323 is detachably connected to riser 322.
The protection of the opposite plate 322 can be realized through the arranged base plate 323 to ensure the positioning precision of the second positioning structure, and meanwhile, the base plate 323 with different types and thicknesses can be conveniently replaced through a detachable connection mode, so that the gap generated in the process of installing and positioning the product can be eliminated, and the product installing and positioning precision and the installing stability are effectively ensured. Of course, in this embodiment, any one of a manual clamping mechanism, an electric clamping mechanism and a hydraulic clamping mechanism may be additionally installed in the second positioning structure 32 to realize further stable clamping.
Referring to fig. 1 and 3, according to one embodiment of the present invention, backing plate 323 has a bent coupling portion 3231 for detachably coupling with an end of riser 322 remote from base plate 321. In the present embodiment, the backing plate 323 is a plate-shaped body having a constant thickness, and the bent connection portion 3231 is formed by bending one end of the backing plate 323 (it is needless to say that it may be formed by welding, machining, or the like). In the present embodiment, the bent connection portion 3231 is provided perpendicular to the backing plate 323.
Referring to fig. 1 and 5, according to an embodiment of the present invention, a pin assembly 5 includes: a shaft body 51 and a circlip 52. In the present embodiment, the shaft body 51 is provided with an annular protrusion 511 at one end and a snap spring groove 512 for mounting the snap spring 52 at the other end. In the present embodiment, the annular protrusion 511 and the circlip groove 512 are spaced apart by a distance that matches the sum of the widths of the support structure 11 and the first positioning structure 31.
In the present embodiment, the diameter of the shaft body 51 is adapted to the diameters of the first connection hole 31a, the first positioning hole 111, the second connection hole 32a and the second positioning hole 112.
Referring to fig. 1 and 2, according to an embodiment of the present invention, the mounting link 2 and the supporting body 1 are integrated. In the present embodiment, the mounting connection portion 2 may be used to be connected to the rotation support 4 separately, or may be connected to the rotation support 4 together with the support body 1 through the mounting connection portion 2 and the support body 1 provided integrally.
Referring to fig. 6 and 7, according to an embodiment of the present invention, the rotation support 4 includes: a support rotating shaft 41, a thrust roller bearing 42 for supporting the rotating shaft 41, and a rotating shaft clamp spring 43. In the present embodiment, the support shaft 41 includes: and a shaft body 411. One end of the shaft body 411 is coaxially provided with a supporting disk 412, and the side surface of the other end is provided with a clamp spring mounting groove 413 for mounting the rotating shaft clamp spring 43. In the present embodiment, a support boss 414 is provided coaxially with the shaft body 411 on a side of the support disc 412 away from the shaft body 411; the supporting boss 414 is a cylinder, and the diameter thereof may be larger than that of the shaft body 411, so as to ensure a larger end surface area and effectively improve the contact range with the installed product.
Referring to fig. 6 and 7, according to an embodiment of the present invention, a cut surface 4121 is provided at one side of the support disc 412, and the distance between the cut surface 4121 and the central axis of the shaft body 411 is smaller than the radius of the shaft body 411. In the present embodiment, the cut surface 4121 is provided on the support disk 412 such that a groove is formed between the support boss 414 and the shaft body 411, so that a portion of the installation position of the shaft body 411 and the thrust roller bearing 42 is exposed, thereby facilitating assembly and disassembly of the shaft body 411 and the thrust roller bearing 42.
As shown in fig. 1, 2 and 8, according to an embodiment of the present invention, the mounting link 2 or the mounting link 2 and the support body 1 are provided with a stepped through hole 6 for inserting the thrust roller bearing 42. In the present embodiment, the stepped through-hole 6 includes: a first stepped hole 61 for fitting connection with the thrust roller bearing 42, a second stepped hole 62 provided coaxially with the first stepped hole 61, a third stepped hole 63 provided coaxially with the second stepped hole 62, and a fourth stepped hole 64 provided coaxially with the third stepped hole 63. In the present embodiment, the shaft 411 is rotatably connected to the third stepped hole 63; along the axial of ladder through-hole 6, the diameters of first ladder hole 61, second ladder hole 62, third ladder hole 63 are degressive in proper order, and the diameter of third ladder hole 63 and the diameter assorted setting of axis body 411. In the present embodiment, the diameter of the fourth stepped hole 64 is larger than the diameter of the third stepped hole 63.
Through the arrangement, the diameter of the third stepped hole 63 is matched with that of the shaft body 411, so that the shaft body 411 is rotatably connected with the third stepped hole 63, the stepped through hole 6 can limit the shaft body 411 to further avoid swinging of the shaft body 411, the axial support precision is effectively guaranteed, and the axial support device is effective and favorable for guaranteeing the support precision.
Through the arrangement, the end part of the shaft body 411 can be accommodated at the position through the fourth stepped hole 64, so that the end part of the shaft body 411 is prevented from protruding, and further, under the condition that the shaft body 411 is conveniently installed and fixed, the interference between a wall surface and other structures below can be effectively avoided, and further, the stable connection of the invention is ensured.
Through the arrangement, the second stepped hole 62 plays a transition role, so that a certain interval distance is reserved between the third stepped hole 63 and the thrust roller bearing 42, a radial limiting bearing is arranged on the shaft body 411 at a certain distance from the thrust roller bearing 42, and the shaft body is beneficial to inhibiting the shaking or swinging in the rotating process.
To further illustrate the solution of the present invention, the present invention will be described with respect to the mounting of a test piece.
The test piece to be tested in this embodiment is a support structure for a carrier connecting wheel set, and includes: the wheel set mounting device comprises a rod body, wherein a rotating shaft for mounting a wheel set is arranged at one end of the rod body and is vertical to the rod body, and the rotating shaft is arranged in a manner of offsetting relative to the rod body, namely the rotating shaft is arranged at one side of the rod body; and the other end of the rod body is used for connecting a chassis of the carrier. In this embodiment, when the supporting jig of this embodiment is used to test a to-be-tested piece, the rotating shaft of the to-be-tested piece is supported on the positioning connection portion 3, the end of the rod body is supported on the end surface of the supporting rotating shaft 41 of the rotating support 4, and the other end of the rod body can be connected to the fixing device.
During testing, axial force loading is provided by the support shaft 41 and rotational moment loading is provided by the locating connection 3. Furthermore, the magnitude of the torque can be tested under the conditions of different circumferential angles (namely rotation angles) and different axial loading forces; the device can also be used for testing the quick removal of the rotation moment and the axial force, the movement speed of the to-be-tested piece and the time required for moving to a specified position under the conditions of certain load (axial force) and rotation angle (namely loading of the rotation moment).
Furthermore, the axial force and/or the rotation torque can be measured by carrying out axial loading and/or rotation torque loading on the piece to be tested. Under the working condition of axial loading, the axial force can be measured independently, and the rotation moment of the to-be-tested piece can be adjusted when the to-be-tested piece is under a certain axial loading force and a certain rotation angle; under the working conditions of axial loading and rotational torque loading, the axial force and the rotational torque can be simultaneously tested, and the time required for the piece to be tested to return to the original point can be tested by quickly releasing the axial force and the rotational torque after the piece to be tested moves to a designated position under the conditions of certain axial force and certain rotational torque, so that whether the performance parameters of the piece to be tested are qualified or not can be judged.
The foregoing is merely exemplary of particular aspects of the present invention and devices and structures not specifically described herein are understood to be those of ordinary skill in the art and are intended to be implemented in such conventional ways.
The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. 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 present invention.
Claims (10)
1. The utility model provides a supporting tool which characterized in that for the eccentric irregular structure of cross, test when loading axial force simultaneously and rotatory moment of torsion power, it includes: a supporting body (1), an installation connecting part (2) connected with the supporting body (1), a positioning connecting part (3) detachably installed on the supporting body (1), and a rotary support (4);
the supporting body (1) is of a long strip structure, the installation connecting parts (2) are arranged on one side of the supporting body (1) in the width direction in an offset mode, and the positioning connecting parts (3) are arranged at two ends of the supporting body (1) in the length direction respectively;
the rotary support (4) is arranged in an offset manner in the width direction of the support main body (1), and the rotary support (4) is connected with the installation connecting part (2), or the rotary support (4) is connected with the installation connecting part (2) and the support main body (1).
2. The supporting jig according to claim 1, characterized in that the opposite ends of the supporting main body (1) are respectively provided with a supporting structure (11) for connecting the positioning connection part (3);
the supporting structure (11) is a strip-shaped structure and is arranged perpendicular to the supporting main body (1);
a first positioning hole position (111) and a second positioning hole position (112) are arranged on the supporting structure (11);
the first positioning hole position (111) penetrates through the supporting structure (11) along the thickness direction of the supporting structure (11);
the second positioning hole site (112) penetrates the support structure (11) in the width direction of the support structure (11).
3. The support jig according to claim 2, characterized in that the second positioning hole sites (112) are respectively arranged at two opposite ends of the support structure (11) in the length direction of the support structure (11), and the first positioning hole site (111) is positioned at the middle position of the support structure (11).
4. The supporting jig according to claim 2 or 3, characterized in that the positioning connecting part (3) abuts against the supporting structure (11) in the thickness direction and the width direction of the supporting structure (11), and the positioning connecting part (3) is connected with the supporting structure (11) by a pin assembly (5).
5. The support fixture according to claim 4, wherein the positioning connection part (3) comprises a first positioning structure (31) and a second positioning structure (32);
the first positioning structure (31) is a strip-shaped structure, and one side of the first positioning structure is abutted against one side of the supporting structure (11) in the width direction;
one end of the second positioning structure (32) is fixedly supported at the upper side of the first positioning structure (31) in the thickness direction, the other end of the second positioning structure is a free end which freely extends along the direction far away from the first positioning structure (31), and the free end can be abutted against the upper side of the supporting structure (11) in the thickness direction;
a first connecting hole (31 a) is formed in the first positioning structure (31), and a second connecting hole (32 a) is formed in the free end of the second positioning structure (32);
the first connecting hole position (31 a) and the second positioning hole position (112) are arranged correspondingly, and the second connecting hole position (32 a) and the first positioning hole position (111) are arranged correspondingly.
6. The support fixture of claim 5, wherein the second positioning structure (32) comprises: a bottom plate (321), a vertical plate (322) and a backing plate (323);
the vertical plates (322) are respectively arranged at two ends of the bottom plate (321) in the width direction, and the vertical plates (322) are positioned at the same side of the bottom plate (321);
the backing plate (323) and the vertical plate (322) are correspondingly arranged on the inner side of the vertical plate (322), and the backing plate (323) is detachably connected with the vertical plate (322).
7. The support jig of claim 6, wherein the backing plate (323) has a bent connecting portion (3231) for detachably connecting with an end of the vertical plate (322) away from the bottom plate (321).
8. The support fixture of claim 7, wherein the pin assembly (5) comprises: a shaft body (51) and a clamp spring (52);
one end of the shaft body (51) is provided with an annular bulge (511), and the other end of the shaft body is provided with a clamp spring groove (512) for mounting the clamp spring (52);
the spacing distance between the annular protrusion (511) and the clamp spring groove (512) is matched with the sum of the widths of the supporting structure (11) and the first positioning structure (31);
the diameter of the shaft body (51) is matched with the diameters of the first connecting hole (31 a), the first positioning hole (111), the second connecting hole (32 a) and the second positioning hole (112).
9. The supporting jig of claim 8, characterized in that the mounting connection portion (2) and the supporting body (1) are integral;
the rotary bearing (4) comprises: the support rotating shaft (41), the thrust roller bearing (42) for supporting the support rotating shaft (41), and the rotating shaft clamp spring (43);
the support shaft (41) includes: a shaft body (411);
a supporting disc (412) is coaxially arranged at one end of the shaft body (411), and a clamp spring mounting groove (413) for mounting the rotating shaft clamp spring (43) is formed in the side surface of the other end of the shaft body;
a supporting boss (414) is coaxially arranged on one side, far away from the shaft body (411), of the supporting disc (412) and is coaxial with the shaft body (411);
a tangent plane (4121) is arranged on one side of the supporting disk (412), and the distance between the tangent plane (4121) and the central axis of the shaft body (411) is smaller than the radius of the shaft body (411).
10. The supporting jig according to claim 9, characterised in that the mounting connection part (2) or the mounting connection part (2) and the supporting body (1) are provided with a stepped through hole (6) for embedding the thrust roller bearing (42);
the stepped through-hole (6) includes: a first stepped hole (61) for fitting connection with the thrust roller bearing (42), a second stepped hole (62) provided coaxially with the first stepped hole (61), a third stepped hole (63) provided coaxially with the second stepped hole (62), and a fourth stepped hole (64) provided coaxially with the third stepped hole (63);
the shaft body (411) is rotatably connected with the third stepped hole (63);
the diameters of the first stepped hole (61), the second stepped hole (62) and the third stepped hole (63) are sequentially decreased in the axial direction of the stepped through hole (6), and the diameter of the third stepped hole (63) is matched with that of the shaft body (411);
the diameter of the fourth stepped hole (64) is larger than the diameter of the third stepped hole (63).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281020.7A CN113814913B (en) | 2021-11-01 | 2021-11-01 | Supporting jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111281020.7A CN113814913B (en) | 2021-11-01 | 2021-11-01 | Supporting jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113814913A CN113814913A (en) | 2021-12-21 |
| CN113814913B true CN113814913B (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111281020.7A Active CN113814913B (en) | 2021-11-01 | 2021-11-01 | Supporting jig |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581614B (en) * | 2008-05-12 | 2012-06-20 | 鸿富锦精密工业（深圳）有限公司 | Bearing tool for torsion meter and torsion test device |
| CN203929043U (en) * | 2014-05-27 | 2014-11-05 | 广州大学 | A kind of rotatable measured material |
| CN112207730A (en) * | 2019-07-10 | 2021-01-12 | 惠州中科先进制造研究中心有限公司 | Large-amplitude rotating jig with power supply function |
| CN213068151U (en) * | 2020-07-24 | 2021-04-27 | 上海商米科技集团股份有限公司 | Novel test fixture |
| CN213289370U (en) * | 2020-07-24 | 2021-05-28 | 深圳市久巨工业设备有限公司 | Rotating seat and machining device |
| CN214373041U (en) * | 2021-02-24 | 2021-10-08 | 杨士纬 | Multi-point fixed jig for torque testing machine |
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| CN113814913A (en) | 2021-12-21 |
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