CN220690632U - Supporting roller type bending device for testing machine - Google Patents
Supporting roller type bending device for testing machine Download PDFInfo
- Publication number
- CN220690632U CN220690632U CN202321895297.3U CN202321895297U CN220690632U CN 220690632 U CN220690632 U CN 220690632U CN 202321895297 U CN202321895297 U CN 202321895297U CN 220690632 U CN220690632 U CN 220690632U
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- China
- Prior art keywords
- screw rod
- roller
- bidirectional screw
- ram
- base
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- 238000005452 bending Methods 0.000 title claims abstract description 50
- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 40
- 230000000712 assembly Effects 0.000 abstract description 20
- 238000000429 assembly Methods 0.000 abstract description 20
- 238000005096 rolling process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Abstract
The utility model discloses a supporting roller type bending device for a testing machine, which comprises: a base, a pressure head assembly; the base is provided with a bidirectional screw rod, two screw rod nuts are arranged on the bidirectional screw rod, each screw rod nut is provided with a roller assembly, when the bidirectional screw rod is rotated, the two screw rod nuts on the bidirectional screw rod can synchronously move close to or separate from each other in different rotating directions of the bidirectional screw rod, and at the moment, the roller assemblies on the two screw rod nuts can synchronously move close to or separate from each other on the bidirectional screw rod, so that the distance between the two roller assemblies is synchronously adjusted, and the error of distance adjustment is reduced.
Description
Technical Field
The utility model relates to a metal bending test device, in particular to a supporting roller type bending device for a test machine.
Background
The bending test is a test for monitoring the bending plasticity of a material by subjecting a sample with a circular, square, rectangular or polygonal cross section to bending plastic deformation on a bending device without changing the direction of the applied force until a specified bending angle is reached. In bending test, the axes of the two arms of the test specimen are kept in a plane perpendicular to the bending axis. In the case of a test with a 180 degree bend, the sample is bent as required to a predetermined distance between the two arms and parallel to each other or with the two arms in direct contact. The bending test is mainly used for testing the mechanical property of the material when the material is subjected to bending load, and the bending test is commonly used in production and application to evaluate the capability of the material to bear bending plastic deformation, so that the bending test is an important reference index for quality control and application design.
The roller bending device comprises two roller assemblies and a pressure head assembly, and the distance between the two roller assemblies is required to be adjusted before testing so as to reach the specification of a test standard; when the distance between two roller assemblies is adjusted by the traditional roller bending device, the two roller assemblies need to be adjusted respectively, and the adjustment of the roller assemblies in such a way lacks synchronous walking, so that the error of the adjustment distance is increased.
Disclosure of Invention
In order to overcome the defect of lack of synchronism in adjustment of a roller assembly in the prior art, the utility model provides a roller bending device for a testing machine, comprising: a base; a ram assembly; the base is provided with a bidirectional screw rod, two screw rod nuts are arranged on the bidirectional screw rod, and each screw rod nut is provided with a roller assembly.
Optionally, one end of the bidirectional screw rod is provided with a hand wheel.
Optionally, the roller assembly includes supporting seat and roller, be provided with the accommodation groove on the supporting seat, the roller sets up in the accommodation groove.
Optionally, the support seat is disposed on the screw nut by a moving plate.
Optionally, at least one sliding rail is arranged on the base, a sliding block is arranged on the sliding rail, and the moving plate is fixedly connected with the sliding block.
Optionally, a caliper is disposed on the base, and the caliper is connected with the roller assembly.
Optionally, the caliper is a digital caliper.
Optionally, the ram assembly includes a curved ram and a ram mount, the curved ram being removably disposed within the ram mount.
Optionally, the pressure head assembly further comprises a cross beam, the pressure head seat is arranged on the cross beam, a guide rod is arranged on the base, and the cross beam is arranged on the guide rod.
Optionally, a joint is provided on the beam.
The beneficial effects of the utility model are as follows: according to the roller bending device for the testing machine, the base is provided with the bidirectional screw rod, the bidirectional screw rod is provided with the two screw rod nuts, each screw rod nut is provided with the roller assembly, when the bidirectional screw rod is rotated, the two screw rod nuts on the bidirectional screw rod can synchronously move close to or separate from each other in different rotation directions, and at the moment, the roller assemblies on the two screw rod nuts can synchronously move close to or separate from each other on the bidirectional screw rod, so that the distance of the roller assemblies can be synchronously adjusted, and the distance adjustment error is reduced.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic view of the assembly of the present utility model;
fig. 2 is a structural exploded view of the present utility model.
Detailed Description
The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.
The present utility model provides an embodiment:
as shown in fig. 1, a supporting roller type bending device for a testing machine, a base 1 and a pressure head assembly 2; the base 1 is provided with a bidirectional screw rod 11, two screw rod nuts are arranged on the bidirectional screw rod 11, each screw rod nut is provided with a supporting roller assembly 3, the pressure head assembly 2 is used for downwards bending a sample 4, the supporting roller assemblies 3 are used for supporting the sample 4, the sample 4 is a metal material which needs to be subjected to a bending test, and in the embodiment, a metal sheet is used as the sample 4; the base 1 is provided with a bidirectional screw rod 11, specifically, the base 1 is provided with two screw rod brackets 12, the two screw rod brackets 12 are respectively arranged on two sides of the base 1, the screw rod brackets 12 are provided with mounting holes 121, two ends of the bidirectional screw rod 11 are respectively arranged in the mounting holes 121 of the two screw rod brackets 12 through rolling bearings, the bidirectional screw rod 11 is provided with two screw rod nuts, the movement directions of the two screw rod nuts on the bidirectional screw rod 11 are opposite, the distances between the two screw rod nuts and the middle points of the axes of the bidirectional screw rod 11 are equal, and the two roller assemblies 3 are respectively arranged on the two screw rod nuts.
In specific implementation, when the bidirectional screw rod 11 is rotated, two screw nuts on the bidirectional screw rod 11 can synchronously move close to or separate from each other in different rotation directions of the bidirectional screw rod 11, and at the moment, the roller assemblies 3 on the two screw nuts can synchronously adjust the distance between the two roller assemblies 3, so that the error of distance adjustment is reduced, after the distance between the roller assemblies 3 is adjusted, the test 4 is placed on the distance formed by the two roller assemblies 3, and the pressure head assembly 2 presses the test sample 4 to a specified bending angle, so that the capability of the test sample 4 for bearing bending plastic deformation is tested.
As an alternative implementation manner of this embodiment, one end of the bidirectional screw 11 is provided with a hand wheel 111, the hand wheel 111 is used for handheld rotation of the bidirectional screw 11, specifically, the hand wheel 111 is a knurled wheel, and is divided into a mounting portion 111a and a rotating portion 111b according to the size of the section radius of the part, the section radius of the mounting portion 111a is smaller than that of the rotating portion 111b, a mounting cavity is arranged in the middle of the mounting portion 111a, one end of the bidirectional screw 11 is arranged in the mounting cavity, a fixing hole 113 is arranged on the outer wall of the mounting portion 111a, the fixing hole 113 is vertically communicated with the mounting cavity, a pin 114 is arranged in the fixing hole 113, the pin 114 is connected with one end of the bidirectional screw 11 in the mounting cavity 112, and a rolling pattern is arranged on the outer wall of the rotating portion 111 b.
In addition to the above embodiment, other embodiments may be included, for example, an internal thread is disposed in the installation cavity 112, and an external thread is disposed at one end of the bidirectional screw 11, so that the hand wheel 111 is screwed with the bidirectional screw 11; for another example, the component for rotating the bidirectional screw rod 11 may be a cross rod, where the cross rod is fixed at one end of the bidirectional screw rod 11, and the bidirectional screw rod 11 is rotated by rotating the cross rod; it will be appreciated that other components or structures than those described above may be included that enable the bi-directional screw 11 to rotate.
In specific implementation, the two-way screw rod 11 is held on the rotating part 111b of the hand wheel 111, and the hand wheel 111 is rotated to rotate the two-way screw rod, so that the function of assisting in rotating the two-way screw rod is realized; the rolling pattern on the rotating part 111b can increase the friction force for rotating the hand wheel 111, so that the rotation is easier.
As an alternative implementation manner of this embodiment, the roller assembly 3 includes a supporting seat 31 and rollers 32, the supporting seat 31 is used for supporting the rollers 32 and also used for supporting the sample 4, the rollers 32 are used for supporting the sample 4 together with the supporting seat 31, the supporting seat 31 is provided with a containing groove 33, the containing groove 33 is arranged at the top side of the supporting seat 31, the rollers 32 are arranged in the containing groove 33, specifically, two ends of the rollers 32 are provided with rolling bearings, the rolling bearings are fixed in the containing groove 33, and the rollers 32 rotate on the rolling bearings;
in specific implementation, the two roller assemblies 3 are arranged on the two screw nuts, the sides of the two supporting seats 31 on which the rollers 32 are arranged are opposite to each other, that is, a spacing distance is reserved between the two supporting seats 31, the spacing distance is the spacing distance of the side of the supporting seat 31 on which the rollers 32 are arranged, the sample 4 is placed on the space formed by the two supporting seats 31 and on the rollers 32, and the rollers 32 can play a role in reducing friction force of a supporting part on the sample 4.
As an alternative to this embodiment, the support seat 31 is provided on the spindle nut by means of a moving plate 34.
In specific implementation, the supporting seat 31, the moving plate 34 and the screw nut are fixedly connected with each other, the contact surface of the moving plate 34 and the supporting seat 31 is larger than the contact surface of the supporting seat 31 and the moving plate 34, and the moving plate 34 can improve the structural stability of the supporting seat 31.
As an alternative implementation manner of this embodiment, at least one sliding rail 13 is provided on the base 1, a sliding block is provided on the sliding rail 13, the moving plate 34 is fixedly connected with the sliding block 131, specifically, two sliding rails 13 are provided on the base 1, and the sliding blocks on the sliding rails 13 are consistent with the movement direction of the screw nut on the bidirectional screw rod 11; the bidirectional screw rod 11 is arranged between two sliding rails 13; in addition to the above embodiments, the number of the sliding rails 13 may be plural or single, and when plural sliding rails are provided, the arrangement positions of the bidirectional screw 11 and the sliding rails 13 may be in the middle of the plural sliding rails 13 or may be the outermost side of the plural sliding rails.
In specific implementation, the screw-nut moves on the bidirectional screw 11 to drive the moving plate 34 and the supporting seat on the moving plate 34 to move, and the sliding block connected with the moving plate 34 also moves on the sliding rail 13, so that the movement of the supporting seat is more stable and is not easy to deviate.
As an alternative to this embodiment, a calliper is provided on the base 1 for measuring the distance between the two roller assemblies 3.
In practice, the position of the support assembly 3 is adjusted and the distance is measured by means of the callipers 14 so that the distance corresponds to the standard distance for the bending test.
As an alternative implementation manner of this embodiment, the caliper 14 is a digital caliper, the digital caliper 14 is connected to the roller assembly 3, specifically, the digital caliper 14 is fixed on the base through a support plate, the digital caliper 14 is connected to the moving plate 34 through an L-shaped connection plate, specifically, the digital caliper 14 includes a blade 141, a frame 142 sliding on the blade, and a digital screen 143 disposed in the frame, the blade 141 is fixed on the base through the support plate, and the frame 142 is connected to the moving plate 34 through the L-shaped connection plate 141.
In addition to the above embodiment, the caliper may also be a vernier caliper or a calliper with a meter to measure the distance between two roller assemblies 3, which is fixed on the base 1 and connected to the roller assemblies 3.
In specific implementation, when the position of the supporting seat 31 is adjusted, the supporting seat 31 and the moving plate 34 move to drive the frame 142 on the digital caliper 14 to move, the digital display screen 143 on the frame 142 displays the measured distance, so that the interval distance between the two roller assemblies 3 is measured, the digital caliper 14 can accurately measure the interval distance, and the digital display screen displays the measured distance more intuitively and conveniently.
As an alternative implementation manner of this embodiment, the ram assembly 2 includes a bending ram 21 and a ram seat 22, where the bending ram 21 is detachably disposed in the ram seat 22, specifically, the ram seat 22 is provided with a groove, the bending ram 21 includes a head and a tail, the tail of the bending ram 21 is disposed in the groove, the head of the bending ram 21 is used for contacting with the sample 4, a circular hole and a locking member 23 passing through the circular hole are disposed on the ram seat 22, the circular hole is communicated with the groove, and the locking member 23 passes through the circular hole to prop against the bending ram 21.
In specific implementation, the tail of the bending press head 21 is installed in the groove of the press head seat 22, the locking piece 23 is used for locking the bending press head 21 in the groove of the press head seat 22, when the bending press head 21 needs to be replaced, the locking piece 23 can be taken down from the press head seat 22, at the moment, the bending press head 21 is taken down again for replacement, and the bending press head 21 is detachably arranged on the press head seat 22, so that the bending press head 21 can be replaced more conveniently.
As an alternative implementation of this embodiment, the ram assembly 2 further includes a cross beam 24, the ram seat 22 is disposed on the cross beam 24, the base 1 is provided with a guide rod 15, the cross beam 24 is disposed on the guide rod 15, specifically, the cross beam 24 is disposed on the guide rod 15 through a shaft sleeve, and the guide rod 15 is disposed on the base through a guide rod bracket 151.
In specific implementation, the cross beam 24 can move up and down on the guide rod 15, and when the cross beam 24 moves downwards, the pressure head seat 22 and the bending pressure head 21 in the pressure head assembly 2 also move downwards, so that the test of the downward pressing bending of the sample 4 is realized.
As an alternative implementation manner of this embodiment, the cross beam 24 is provided with a connector 241, specifically, the connector 241 is fixedly connected to the cross beam 24, and the connector 241 is used for connecting to a testing machine.
In particular, when a bending test is desired, the joint 241 is docked to a testing machine for the bending test.
While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and these equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.
Claims (9)
1. A roller bending apparatus for a testing machine, comprising:
a base;
a ram assembly;
the base is provided with a bidirectional screw rod, two screw rod nuts are arranged on the bidirectional screw rod, each screw rod nut is provided with a roller assembly, each roller assembly comprises a supporting seat and a roller, the supporting seat is provided with a containing groove, and the rollers are arranged in the containing groove.
2. The supporting roller type bending device for the testing machine according to claim 1, wherein a hand wheel is arranged at one end of the bidirectional screw rod.
3. The bending apparatus according to claim 1, wherein the support is provided on a spindle nut by a moving plate.
4. The supporting roller type bending device for the testing machine according to claim 3, wherein at least one sliding rail is arranged on the base, a sliding block is arranged on the sliding rail, and the moving plate is fixedly connected with the sliding block.
5. The roller bending apparatus for a testing machine of claim 1, wherein a caliper is provided on the base, the caliper being connected to the roller assembly.
6. The apparatus of claim 5, wherein the caliper is a digital caliper.
7. The apparatus of claim 1, wherein the ram assembly comprises a ram and a ram mount, the ram being removably disposed within the ram mount.
8. The roller bending apparatus for a testing machine of claim 7, wherein the ram assembly further comprises a cross beam, the ram mount is disposed on the cross beam, the base is provided with a guide bar, and the cross beam is disposed on the guide bar.
9. The bending apparatus according to claim 8, wherein the cross member is provided with a joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321895297.3U CN220690632U (en) | 2023-07-18 | 2023-07-18 | Supporting roller type bending device for testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321895297.3U CN220690632U (en) | 2023-07-18 | 2023-07-18 | Supporting roller type bending device for testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220690632U true CN220690632U (en) | 2024-03-29 |
Family
ID=90408671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321895297.3U Active CN220690632U (en) | 2023-07-18 | 2023-07-18 | Supporting roller type bending device for testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220690632U (en) |
-
2023
- 2023-07-18 CN CN202321895297.3U patent/CN220690632U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |