CN218847563U - Testing device for static rigidity of thick and large part - Google Patents
Testing device for static rigidity of thick and large part Download PDFInfo
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- CN218847563U CN218847563U CN202223186916.XU CN202223186916U CN218847563U CN 218847563 U CN218847563 U CN 218847563U CN 202223186916 U CN202223186916 U CN 202223186916U CN 218847563 U CN218847563 U CN 218847563U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a testing arrangement of quiet rigidity of thick major possession, include: the device comprises a loading device, a force transmission device, a supporting seat for placing thick and large pieces and a pressing device for fixing the thick and large pieces on the supporting seat; the loading device comprises a loading mechanism, a push-pull dynamometer and a loading support fixed on the support seat, and the loading mechanism can apply thrust to the push-pull dynamometer; the force transmission device comprises a transmission shaft, the transmission shaft penetrates through the loading support, and one end of the transmission shaft is detachably connected with the thick large part; the plurality of loading mechanisms are distributed along the circumferential direction of the transmission shaft, and the loading mechanisms are fixed on the loading support; the push-pull dynamometer is arranged between the loading mechanism and the transmission shaft, one end of the push-pull dynamometer can be abutted against the loading mechanism, and the other end of the push-pull dynamometer is fixedly connected with one end, far away from the thick large piece, of the transmission shaft. The static rigidity testing device solves the problems that the static rigidity testing device only simulating the stress in a single direction cannot simulate the condition of multi-direction stress and is not suitable for static rigidity testing of thick and large parts such as a ram and the like with complex stress.
Description
Technical Field
The utility model relates to a lathe detects technical field, especially relates to a testing arrangement of quiet rigidity of thick major possession.
Background
Aiming at thick and large parts such as machine tool rams, the conventional static rigidity testing device usually only simulates the stress in a single direction, taking the ram as an example, a spindle is arranged on the ram, the static rigidity of the ram directly influences the processing precision of a tool point of a machine tool, and the ram is subjected to different forces in multiple directions under the influence of cutting force.
The static stiffness testing device only simulating the stress in a single direction cannot simulate the condition of multi-direction stress, and is not suitable for static stiffness testing of thick and large parts such as a ram and the like with complex stress, so that the static stiffness of the thick and large parts such as the ram and the like with complex stress cannot be accurately measured, and the delivery quality of the thick and large parts is influenced.
Disclosure of Invention
The utility model provides a testing arrangement of thick major possession quiet rigidity to overcome the condition that can't simulate out multi-direction atress of the quiet rigidity testing arrangement who only simulates unidirectional force, be not suitable for the quiet rigidity test of the thick major possession of atress complicacy such as ram, cause the quiet rigidity of the thick major possession of atress complicacy such as ram can't accurately measure, and then influence the problem of the delivery quality of thick major possession.
In order to realize the purpose, the technical scheme of the utility model is that:
a thick large part static rigidity testing device comprises: the device comprises a loading device, a force transmission device, a supporting seat for placing thick and large pieces and a pressing device for fixing the thick and large pieces on the supporting seat;
the loading device comprises a loading mechanism, a push-pull dynamometer and a loading support fixed on the support seat, and the loading mechanism can apply thrust to the push-pull dynamometer;
the force transmission device comprises a transmission shaft, the transmission shaft penetrates through the loading support, and one end of the transmission shaft is detachably connected with the thick large piece;
the loading mechanisms are arranged along the circumferential direction of the transmission shaft and are fixed on the loading support;
the push-pull dynamometer is arranged between the loading mechanism and the transmission shaft, one end of the push-pull dynamometer can be abutted against the loading mechanism, and the other end of the push-pull dynamometer is fixedly connected with one end, far away from the thick large piece, of the transmission shaft.
Furthermore, the loading mechanism comprises a jackscrew block provided with a jackscrew hole and a bolt penetrating through the jackscrew hole, and one end, far away from the transmission shaft, of the push-pull dynamometer can abut against the end of the bolt penetrating through the jackscrew hole.
Furthermore, the number of the jackscrew blocks is four, and the four jackscrew blocks are arranged on the loading support in a cross manner.
Further, the axis of the conducting shaft passes through the intersection point of the axes of the top thread holes of any two adjacent top thread blocks, and the axis of the conducting shaft is perpendicular to the axis of the top thread hole.
Further, the push-pull dynamometer is provided with a bolt positioning hole for accommodating the end of the bolt penetrating through the jackscrew hole.
Further, the pressing device comprises a pressing plate and a base plate;
the top on thick major possession outer edge is placed to the clamp plate, the side on thick major possession outer edge is placed to the backing plate, the thickness that the backing plate thickness is less than thick major possession outer edge, and the bolt can run through in proper order clamp plate and backing plate are fixed both on the supporting seat.
Furthermore, the loading support comprises a loading support and a supporting plate, the loading support is fixed on the supporting seat and fixedly connected with the supporting plate, and the loading support and the supporting plate can enclose a through hole for the conduction shaft to pass through.
Furthermore, the force transmission device also comprises a flange plate, the flange plate is fixed at one end of the transmission shaft, and the flange plate is connected with the thick large part through a bolt.
Further, the supporting seat comprises a fixing plate and a hanging ring;
the fixed plate is used for supporting thick and large parts, the plane where the fixed plate is located is parallel to the horizontal plane, and the hanging rings are arranged at four corners of the fixed plate.
Further, the device comprises a detection device, and the detection device is used for detecting the displacement of the surface of the thick and large piece.
The utility model has the advantages that:
the thick and large part is placed on the supporting seat and fixed by the pressing device, the pushing force is applied to the push-pull force meter through the loading mechanism, the applied pushing force is transmitted to the thick and large part through the transmission shaft by the push-pull force meter, the magnitude of the currently applied force is confirmed according to the reading of the push-pull force meter, the condition of multi-direction stress can be simulated by applying force simultaneously through the multiple loading mechanisms, and the problem that the static rigidity testing device only simulating the stress in a single direction cannot simulate the multi-direction stress, is not suitable for static rigidity testing of the thick and large part with complex stress, such as a ram and the like, and influences the delivery quality of the thick and large part is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a first schematic structural diagram of a thick and large static stiffness testing device disclosed by the invention;
fig. 2 is a structural schematic diagram of a thick and large static stiffness testing device disclosed by the utility model ii;
fig. 3 is a schematic structural diagram of a loading device and a force transmission device of a thick and large static stiffness testing device disclosed by the present invention;
fig. 4 is a schematic structural diagram of a detection device of a thick and large static stiffness test device disclosed by the present invention;
in the figure: 1. the device comprises a supporting seat, 1-1 parts of a fixing plate, 1-2 parts of a hanging ring, 2 parts of a pressing device, 2-1 parts of a pressing plate, 2-2 parts of a base plate, 3 parts of a loading device, 3-1 parts of a loading support, 3-1 parts of a supporting plate, 3-1 parts of a long circular hole, 3-2 parts of a jackscrew block, 3-2 parts of a jackscrew hole, 3-3 parts of a push-pull dynamometer, 3-3 parts of a bolt positioning hole, 4 parts of a force transmission device, 4-1 parts of a flange plate, 4-2 parts of a transmission shaft, 5 parts of a detection device, 5-1 parts of an inductance measuring head, 5-2 parts of a reading meter, A and a ram.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The embodiment provides a device for testing the static stiffness of a thick large part, as shown in fig. 1, comprising: the device comprises a loading device 3, a force transmission device 4, a supporting seat 1 for placing a thick large piece, and a pressing device 2 for fixing the thick large piece on the supporting seat 1, wherein in the embodiment, the thick large piece is a ram A;
as shown in fig. 2 and 3, the loading device 3 comprises a top wire block 3-2, a push-pull force meter 3-3 and a loading support 3-1 fixed on the support base 1;
the force transmission device 4 comprises a transmission shaft 4-2, the transmission shaft 4-2 penetrates through the loading support 3-1, and one end of the transmission shaft 4-2 is connected with the ram A through a bolt;
the plurality of top thread blocks 3-2 are distributed along the circumferential direction of the transmission shaft 4-2, the top thread blocks 3-2 are fixed on the loading support 3-1, and top thread holes 3-2-1 are formed in the top thread blocks 3-2;
the push-pull dynamometer 3-3 is arranged between the jackscrew block 3-2 and the transmission shaft 4-2, one end of the push-pull dynamometer 3-3 can be abutted against the end of a bolt penetrating through the jackscrew hole 3-2-1, and the other end of the push-pull dynamometer 3-3 is fixedly connected with one end, far away from the ram A, of the transmission shaft 4-2;
the ram A is placed on the supporting seat 1 and fixed through the pressing device 2, an operator enables bolts to penetrate through the top thread holes 3-2-1 of the top thread blocks 3-2 distributed along the circumferential direction of the transmission shaft 4-2 and abut against one end of the push-pull force gauge 3-3, the other end of the push-pull force gauge 3-3 is fixed with the transmission shaft 4-2, force is exerted on the transmission shaft 4-2, the transmission shaft 4-2 transmits the received force to the ram A, the magnitude of the exerted force can be adjusted only through screwing and unscrewing the bolts, the magnitude of the currently exerted force is confirmed according to the reading of the push-pull force gauge 3-3, the top thread blocks 3-2 in multiple directions can be used independently to simulate the stress condition of the ram A in a single direction, the plurality of top thread blocks 3-2 can be selected to be used simultaneously, and the plurality of bolts penetrating through the top thread blocks 3-2 exert force in different directions simultaneously to simulate the multi-direction stress condition of the ram A.
In a specific embodiment, the number of the top thread blocks 3-2 is four, the four top thread blocks 3-2 are arranged on the loading support 3-1 in a crossed manner, the axis of the transmission shaft 4-2 passes through the intersection point of the axes of the top thread holes 3-2-1 of any two adjacent top thread blocks 3-2, the axis of the transmission shaft 4-2 is perpendicular to the axis of the top thread hole 3-2-1, and the axes are perpendicular to each other, so that the force decomposition caused by angular deviation is avoided, the reading of the push-pull force meter 3-3 is inconsistent with the actual stress of the transmission shaft 4-2, and the measurement accuracy of the subsequent deformation is influenced.
In a specific embodiment, as shown in fig. 3, the push-pull dynamometer 3-3 is provided with a bolt positioning hole 3-3-1 for receiving the end of the bolt penetrating through the jackscrew hole 3-2-1, the end of the bolt penetrating through the jackscrew hole 3-2-1 can be inserted into the bolt positioning hole 3-3-1 of the push-pull dynamometer 3-3, and the bolt positioning hole 3-3-1 can prevent the end of the bolt from shifting when the force is applied too much, so that the reading of the push-pull dynamometer 3-3 is inconsistent with the actual force applied to the conductive shaft 4-2, and unnecessary measurement errors are generated.
In a specific embodiment, as shown in fig. 2, the pressing device 2 comprises a pressing plate 2-1 and a backing plate 2-2;
the pressure plate 2-1 is placed at the top of the outer edge of the ram A, the base plate 2-2 is placed on the side face of the outer edge of the ram A, the thickness of the base plate 2-2 is smaller than that of the outer edge of the ram A, a bolt can sequentially penetrate through the pressure plate 2-1 and the base plate 2-2 to fix the pressure plate 2-1 and the base plate on the supporting seat 1, and after the bolt is screwed down, the pressure plate 2-1 can compress the outer edge of the ram A due to the fact that the thickness of the base plate 2-2 is smaller than that of the outer edge of the ram A, so that the situation that the whole displacement of the ram A after the ram A is stressed is avoided, and the measuring precision of the follow-up deformation is influenced is avoided.
In a specific embodiment, as shown in fig. 3, the loading seat 3-1 includes a loading support 3-1-1 and a support plate 3-1-2, the loading support 3-1-1 is fixed on the support seat 1, the loading support 3-1-1 is fixedly connected with the support plate 3-1-2, the loading support 3-1-1 and the support plate 3-1-2 can enclose a through hole for the conduction shaft 4-2 to pass through, the loading seat 3-1 is divided into the loading support 3-1-1 and the support plate 3-1-2, so as to facilitate the manufacture, maintenance and replacement of the loading support 3-1-1 and the support plate 3-1-2, and facilitate the assembly of the conduction shaft 4-2.
In a specific embodiment, as shown in fig. 3, the force transmission device 4 further includes a flange plate 4-1, the flange plate 4-1 is fixed at one end of the transmission shaft 4-2, the flange plate 4-1 is connected with the ram a through bolts, and the flange plate 4-1 can increase the contact area with the ram a, so as to avoid surface damage caused by too concentrated local stress on the ram a.
In a specific embodiment, as shown in fig. 2, the supporting seat 1 includes a fixing plate 1-1 and a hanging ring 1-2;
the fixed plate 1-1 is used for supporting the ram A, the plane where the fixed plate 1-1 is located is parallel to the horizontal plane, and the hanging rings 1-2 are arranged at four corners of the fixed plate 1-1, so that convenience is brought to lifting and carrying of the supporting seat 1.
In the embodiment shown in fig. 1, the supporting seat 1 is provided with criss-cross reinforcing ribs to ensure that the supporting seat 1 has sufficient strength to bear the ram a.
In a specific embodiment, as shown in fig. 4, the ram static stiffness tester further includes a detection device 5, the detection device 5 is configured to detect a displacement amount of the surface of the ram a, the detection device 5 includes an inductance probe 5-1 and a reading table 5-2, the inductance probe 5-1 is fixed by the support structure and then mechanically contacts with the ram a, the inductance probe 5-1 is preferably a mark inductance probe P2004M, the measurement precision is high, the measurement range is wide, an operator measures the displacement amount of the surface of the ram a after being stressed by using the inductance probe 5-1, and reads the displacement amount by using the reading table 5-2, so that the deformation amount of the ram a is known, and further the static stiffness of the ram a can be obtained.
In a specific embodiment, as shown in fig. 3, the bottom of the loading support 3-1 is provided with a long round hole 3-1-3, so that the loading support 3-1 can be subjected to fine adjustment of the position.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A thick big static rigidity's testing arrangement, its characterized in that includes: the device comprises a loading device (3), a force transmission device (4), a supporting seat (1) for placing thick and large pieces and a pressing device (2) for fixing the thick and large pieces on the supporting seat (1);
the loading device (3) comprises a loading mechanism, a push-pull dynamometer (3-3) and a loading support (3-1) fixed on the support seat (1), and the loading mechanism can apply thrust to the push-pull dynamometer (3-3);
the force transmission device (4) comprises a transmission shaft (4-2), the transmission shaft (4-2) penetrates through the loading support (3-1), and one end of the transmission shaft (4-2) is detachably connected with the thick large part;
the loading mechanisms are distributed along the circumferential direction of the transmission shaft (4-2) and are fixed on the loading support (3-1);
the device is characterized in that the push-pull dynamometer (3-3) is arranged between the loading mechanism and the transmission shaft (4-2), one end of the push-pull dynamometer (3-3) can be abutted against the loading mechanism, and the other end of the push-pull dynamometer (3-3) is fixedly connected with one end, far away from the thick large piece, of the transmission shaft (4-2).
2. The thick and large piece static rigidity testing device according to claim 1, wherein the loading mechanism comprises a jackscrew block (3-2) provided with a jackscrew hole (3-2-1) and a bolt penetrating through the jackscrew hole (3-2-1), and one end of the push-pull dynamometer (3-3) far away from the transmission shaft (4-2) can abut against the end of the bolt penetrating through the jackscrew hole (3-2-1).
3. The thick and large part static stiffness testing device as claimed in claim 2, wherein the number of the top wire blocks (3-2) is four, and four top wire blocks (3-2) are crisscross arranged on the loading support (3-1).
4. The thick and large piece static stiffness testing device according to claim 3, wherein the axis of the conductive shaft (4-2) passes through the intersection point of the axes of the top thread holes (3-2-1) of any two adjacent top thread blocks (3-2), and the axis of the conductive shaft (4-2) is perpendicular to the axis of the top thread hole (3-2-1).
5. The thick member static stiffness testing device according to claim 2, wherein the push-pull dynamometer (3-3) is provided with a bolt positioning hole (3-3-1) for receiving an end of a bolt passing through the jackscrew hole (3-2-1).
6. The thick and large piece static stiffness testing device according to claim 1, wherein the pressing device (2) comprises a pressing plate (2-1) and a backing plate (2-2);
the pressing plate (2-1) is placed at the top of the outer edge of the thick large piece, the backing plate (2-2) is placed on the side face of the outer edge of the thick large piece, the thickness of the backing plate (2-2) is smaller than that of the outer edge of the thick large piece, and a bolt can penetrate through the pressing plate (2-1) and the backing plate (2-2) in sequence to fix the pressing plate (2-1) and the backing plate (2-2) on the supporting seat (1).
7. The thick and large part static stiffness testing device according to claim 1, wherein the loading support (3-1) comprises a loading support (3-1-1) and a support plate (3-1-2), the loading support (3-1-1) is fixed on the support base (1), the loading support (3-1-1) is fixedly connected with the support plate (3-1-2), and the loading support (3-1-1) and the support plate (3-1-2) can enclose a through hole for the conduction shaft (4-2) to pass through.
8. The thick and large part static stiffness testing device according to claim 1, wherein the force transmission device (4) further comprises a flange (4-1), the flange (4-1) is fixed at one end of the transmission shaft (4-2), and the flange (4-1) is connected with the thick and large part through bolts.
9. The thick and large piece static stiffness testing device according to claim 1, wherein the supporting base (1) comprises a fixing plate (1-1) and a hanging ring (1-2);
the fixing plate (1-1) is used for supporting thick and large parts, the plane where the fixing plate (1-1) is located is parallel to the horizontal plane, and the hanging rings (1-2) are arranged at four corners of the fixing plate (1-1).
10. The device for testing the static stiffness of the thick large piece according to claim 1, further comprising a detection device (5), wherein the detection device (5) is used for detecting the displacement of the surface of the thick large piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223186916.XU CN218847563U (en) | 2022-11-29 | 2022-11-29 | Testing device for static rigidity of thick and large part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223186916.XU CN218847563U (en) | 2022-11-29 | 2022-11-29 | Testing device for static rigidity of thick and large part |
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| Publication Number | Publication Date |
|---|---|
| CN218847563U true CN218847563U (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223186916.XU Active CN218847563U (en) | 2022-11-29 | 2022-11-29 | Testing device for static rigidity of thick and large part |
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| CN (1) | CN218847563U (en) |
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- 2022-11-29 CN CN202223186916.XU patent/CN218847563U/en active Active
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