CN216559997U - Supporting seat for bending test fixture - Google Patents
Supporting seat for bending test fixture Download PDFInfo
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- CN216559997U CN216559997U CN202122329689.0U CN202122329689U CN216559997U CN 216559997 U CN216559997 U CN 216559997U CN 202122329689 U CN202122329689 U CN 202122329689U CN 216559997 U CN216559997 U CN 216559997U
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- supporting part
- support
- bending test
- clamping groove
- test fixture
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Abstract
The utility model relates to a supporting seat for a bending test fixture, which comprises a guide rail seat provided with a graduated scale, a movable support and a supporting part, wherein the movable support and the supporting part are arranged on the guide rail seat; the two movable supports are in mirror symmetry; the top of the movable support is provided with a clamping groove for accommodating the supporting part; the cross section of the supporting part is polygonal, the edges of the supporting part are all provided with arc sections, and each arc section of the supporting part is provided with different radiuses; at least one arc segment of the supporting part extends out of the clamping groove. When the bending test of different products is carried out and the test radius needs to be changed, only the supporting part needs to be rotated to enable the corresponding arc-shaped angle to extend out of the clamping groove and be located at the highest point, the supporting part with different test radii does not need to be changed, the efficiency of changing the test radius is improved, and the number of accessories can be reduced.
Description
Technical Field
The utility model relates to the field of detection equipment, in particular to a supporting seat for a bending test fixture.
Background
The bending test is a test for measuring mechanical properties of a material when the material is subjected to a bending load, and is one of the basic methods for testing mechanical properties of a material. The radius of the bending clamp commonly used on the market at present for contacting with materials is mostly 2mm and 5mm, and for different standards of different actual products, other different radius requirements exist.
The publication number "CN 209841536U", chinese patent document published as 2019, 12, and 24 discloses a three-point bending rock clamp for dimensional effect test, which may include a pressure head portion and a support portion disposed below the pressure head portion, the pressure head portion includes a pressure head body and a pressure roller disposed at the bottom of the pressure head body; the supporting part comprises a supporting roller, a movable support, a base and a guide rail platform, wherein two ends of the guide rail platform are respectively provided with one movable support, the movable support passes through the base and is connected with the guide rail platform, the supporting roller is further arranged on the movable support, and the movable support is arranged on the guide rail platform by taking the pressure head body as central symmetry. The three-point bending test fixture can adapt to rock three-point bending tests of various sizes by replacing the compression roller and the support roller, and meets the requirement of performing the three-point bending test on each group of test pieces with large size change on one fixture.
However, in the above technical solution, the bending tests of products with different sizes can be realized only by replacing the support rollers with different test radiuses, so that not only the support rollers with various sizes need to be prepared, but also the support rollers to be replaced need to be prepared in advance each time, and then the old support rollers are all disassembled to mount the new support rollers, which causes replacement troubles, and other support rollers need to be stored, which easily causes management inconvenience.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the bending test of products with different sizes can be realized only by replacing support rollers with different test radiuses in the prior art, and provides the support seat for the bending test fixture.
In order to solve the technical problems, the utility model adopts the technical scheme that: a supporting seat for a bending test fixture comprises a guide rail seat provided with a graduated scale, two movable supporting seats and a supporting part, wherein the two movable supporting seats and the supporting part are oppositely arranged on the guide rail seat; the top of the movable support is provided with a clamping groove for clamping the supporting part; the cross section of the supporting part is polygonal, adjacent edges of the polygons are connected through arc sections, and the arc sections are at least provided with two radiuses; at least one arc section of the supporting part and the adjacent edge of the arc section are clamped in the clamping groove. At least one arc section of the supporting part extends out of the clamping groove.
In the above technical scheme, after the supporting part is installed in the clamping groove, the clamping groove and the supporting part are both in an upward inclined state, one of the arc sections is located at the highest point relative to the other arc sections after extending out of the clamping groove, at least one arc section and the adjacent edge thereof are clamped in the clamping groove, so that the supporting part is limited in the clamping groove, and the supporting part cannot be separated from the clamping groove when testing is performed. When the test is needed, the circular arc section corresponding to the radius needed to be used is positioned at the highest point and is contacted with the test sample, and then the test can be carried out. When different test radiuses need to be replaced, the supporting portion only needs to be lifted to a range of leaving the clamping groove, then the supporting portion is rotated, the circular arc section corresponding to the radius needed to be used is located at the highest point position, and then the supporting portion is placed into the clamping groove. When different test radiuses are needed for testing, the supporting part only needs to be rotated.
Preferably, the supporting part is a triangular prism; the clamping groove is V-shaped and is attached to the shape of the supporting part. The structure of triangular prism has three different test radius, and the stability of the supporting part under this structure is better simultaneously, is difficult to take place the skew after the draw-in groove of packing into.
Preferably, the supporting part is provided with three circular arc sections with the radius of 1mm, 2mm and 5mm respectively.
Preferably, the fixing device further comprises a fixing component for fixing the supporting part in the clamping groove. In order to avoid the phenomenon that the supporting part loosens, when testing, fix the supporting part in the draw-in groove through fixed subassembly.
Preferably, through holes penetrating into the clamping grooves are formed in two sides of the movable support; the supporting part is provided with a rotating shaft hole matched with the through hole; the fixing assembly comprises a rotating shaft penetrating through the through hole and the rotating shaft hole and a fastener for fixing one end or two ends of the rotating shaft on the movable support. The clamping groove is a cavity arranged on the movable support, and the supporting part is arranged in the cavity. The supporting part is limited on the clamping groove after the rotating shaft penetrates through the rotating shaft hole and the through hole, and the rotating shaft is screwed and fixed on the movable support through the fastening part, so that the supporting part is completely fixed in the clamping groove. When different test radiuses need to be changed, only the rotating shaft needs to be detached, and then the supporting part is fixed after the supporting part is rotated.
Preferably, the rotating shaft is a bolt, the fastening piece is a nut, the rotating shaft can be fixed only by fixing one end of the bolt through the nut, and the mounting and dismounting speed of the supporting part is increased.
Preferably, the rotating shaft is a bolt, the fastener is a bolt, and the bolt is provided with a jack matched with the bolt. The fixing of pivot just can be realized to one end that only needs through nut fixing bolt to just can be fixed the pivot in inserting the jack through the bolt, need not to screw up and the operation of unscrewing, improve the dismouting effect of supporting part.
Preferably, the top end of the movable support is provided with a sliding groove communicated to the through hole. The pivot can be along the sliding tray rebound, when needs rotate the supporting part, need not dismantle whole pivot get off, only need unscrew the nut or tear the bolt open out, make the pivot can just make the supporting part rotate along the sliding tray rebound, the supporting part accomplishes behind the radial conversion of test, again along the sliding tray rebound, then fixed pivot can accomplish the fixed of supporting part again, further improves the radial efficiency of supporting part conversion test.
Preferably, the clamping groove penetrates through the movable support, and rotating shaft parts extending out of the clamping groove are arranged on two sides of the supporting part; the fixed assembly comprises hook seats arranged on two sides of the movable support and an elastic piece used for connecting the hook seats and the rotating shaft part; both ends of the elastic piece are hooks which can be used for being connected with the rotating shaft part or the hook seat. The supporting part is fixed in the clamping groove through the elasticity of the elastic part, when the supporting part needs to be rotated, the supporting part is lifted by overcoming the elasticity of the elastic part through external force to do work, and after the rotation of the supporting part is completed, the supporting part can be fixed in the clamping groove again through the elastic action of the elastic part.
Preferably, the rotating shaft part and the hook seat are both provided with limiting grooves matched with the hooks. The limiting groove can prevent the hook from separating from the hook seat or the rotating shaft part, so that the elastic part is prevented from loosening.
Compared with the prior art, the utility model has the beneficial effects that: when the bending test of different products is carried out and the test radius needs to be changed, only the supporting part needs to be rotated to enable the corresponding arc-shaped angle to extend out of the clamping groove and be located at the highest point, the supporting part with different test radii does not need to be changed, the efficiency of changing the test radius is improved, and the number of accessories can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of a supporting seat for a bending test fixture according to embodiment 1 of the present invention;
fig. 2 is a schematic view of an installation structure of a support part and a movable support according to embodiment 1 of the present invention;
fig. 3 is a sectional view showing an installation state of a support part and a movable support according to embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a mobile mount according to embodiment 1 of the present invention;
fig. 5 is a schematic view of an installation structure of the support part and the movable support according to embodiment 3 of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The technical scheme of the utility model is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1
Fig. 1-4 show an embodiment of a supporting seat for a bending test fixture, which includes a rail seat 1 provided with a scale, two oppositely-mounted movable supports 2 and a supporting portion 3, which are mounted on the rail seat 1; the top of the movable support 2 is provided with a clamping groove 201 for clamping the support part 3; the cross section of the support part 3 is polygonal, the adjacent edges of the polygons are connected through arc sections 301, at least two arc sections 301 with different radiuses are provided, and in this embodiment, each arc section 301 is provided with a different radius; at least one circular arc segment 301 of the support part 3 and its adjacent edge are clamped in the clamping groove 201. At least one circular arc segment 301 of the supporting part 3 extends out of the clamping groove 201.
In the present embodiment, the support 3 is a triangular prism having three circular arc segments 301 with radii of 1mm, 2mm and 5mm, respectively. The locking groove 201 is V-shaped and fits the shape of the support part 3. The structure of triangular prism has three different test radiuses, and the stability of the supporting part 3 under this structure is better simultaneously, is difficult to take place to squint after the draw-in groove 201 of packing into.
The fixing device further comprises a fixing component for fixing the supporting part 3 in the clamping groove 201. In order to avoid the support part 3 from loosening, the support part 3 is fixed in the clamping groove 201 through a fixing component during testing. Specifically, through holes 202 penetrating into the clamping grooves 201 are formed in two sides of the movable support 2; the support part 3 is provided with a rotating shaft hole 302 paired with the through hole 202; the fixing assembly includes a rotation shaft 4 for penetrating the through hole 202 and the rotation shaft hole 302, and a fastening member 5 for fixing one or both ends of the rotation shaft 4 to the movable bracket 2. The slot 201 is a cavity disposed on the movable support 2, and the support 3 is disposed in the cavity. After the rotating shaft 4 passes through the rotating shaft hole 302 and the through hole 202, the supporting part 3 is limited on the clamping groove 201, and then the rotating shaft 4 is screwed and fixed on the movable support 2 through the fastener 5, so that the supporting part 3 is completely fixed in the clamping groove 201. When different test radiuses need to be changed, only need pull down pivot 4, then rotate behind the supporting part 3 again to supporting part 3 fixed can.
Specifically, the rotating shaft 4 is a bolt, the fastening piece 5 is a nut, and the rotating shaft 4 can be fixed only by fixing one end of the bolt through the nut, so that the mounting and dismounting speed of the supporting part 3 is increased.
Further, the top end of the movable holder 2 is provided with a sliding groove 203 communicating with the through hole 202. Pivot 4 can be along sliding tray 203 rebound, when needs rotate supporting part 3, need not dismantle whole pivot 4, only need unscrew the nut or tear the bolt open, make pivot 4 can just can make supporting part 3 rotate along sliding tray 203 rebound, supporting part 3 accomplishes behind the radial conversion of test, again along sliding tray 203 rebound, then fixed pivot 4 can accomplish supporting part 3's fixed again, further improve supporting part 3 conversion test radial efficiency.
The working principle or working process of the embodiment is as follows: after the supporting part is installed in the clamping groove, the clamping groove and the supporting part are both in an upward inclined state, and one of the arc sections 301 is located at the highest point relative to the other arc sections 301 after extending out of the clamping groove 201. When the test is needed, the circular arc section 301 corresponding to the radius needed to be used is positioned at the highest point and is contacted with the test sample, and then the test can be carried out. When different test radiuses need to be changed, the supporting portion 3 only needs to be lifted to a range away from the clamping groove 201, then the supporting portion 3 is rotated, the arc segment 301 corresponding to the radius needed to be used is located at the highest point position, and then the supporting portion 3 is placed into the clamping groove 201. When different test radiuses are required for testing, only the support part 3 needs to be rotated.
The beneficial effects of this embodiment: when the bending test of different products is carried out and the test radius needs to be changed, only the supporting part 3 needs to be rotated to enable the corresponding arc-shaped angle to extend out of the clamping groove 201 and be located at the highest point, the supporting part 3 with different test radii does not need to be changed, the efficiency of changing the test radius is improved, and the number of accessories can be reduced.
Example 2
Another embodiment of a support base for a bending test fixture differs from embodiment 1 in that preferably the fastening member 5 is replaced by a plug and the bolt is provided with a socket for engagement with the plug. Only need just can realize the fixed of pivot 4 through nut fixing bolt's one end to insert through the bolt and just can fix pivot 4 in the jack, need not to screw up and the operation of unscrewing, improve supporting part 3's dismouting effect.
The remaining features and principles of this embodiment are consistent with embodiment 1.
Example 3
Preferably, the rotating shaft part 303 and the hook seat 6 are both provided with a limit groove matched with the hook. The limiting groove can prevent the hook from separating from the hook seat 6 or the rotating shaft part 303, thereby preventing the elastic piece 7 from loosening.
The remaining features and principles of this embodiment are consistent with embodiment 1.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A supporting seat for a bending test fixture comprises a guide rail seat (1) provided with a graduated scale and two oppositely-mounted movable supporting seats (2) arranged on the guide rail seat (1); characterized in that the device also comprises a support part (3); the top of the movable support (2) is provided with a clamping groove (201) for clamping the support part (3); the cross section of the supporting part (3) is polygonal, adjacent edges of the polygons are connected through an arc section (301), and the arc section (301) is at least provided with two different radiuses; at least one arc section (301) of the supporting part (3) and the adjacent edge thereof are clamped in the clamping groove (201); at least one arc segment (301) of the supporting part extends out of the clamping groove (201).
2. A support for a bending test fixture according to claim 1, wherein the support (3) is a triangular prism; the clamping groove (201) is V-shaped and is attached to the shape of the supporting part (3).
3. A support base for a bending test fixture according to claim 2, characterised in that the support portion (3) is provided with a total of three circular arc segments (301) with a radius of 1mm, 2mm and 5mm, respectively.
4. A support base for a bending test fixture according to claim 1, further comprising a fixing assembly for fixing the support portion (3) in the slot (201).
5. A support base for a bending test fixture according to claim 4, wherein two sides of the movable support base (2) perpendicular to the axis of the clamping groove (201) are provided with through holes (202) penetrating into the clamping groove (201); the support part (3) is provided with a rotating shaft hole (302) matched with the through hole (202); the fixing assembly comprises a rotating shaft (4) penetrating through the through hole (202) and the rotating shaft hole (302) and a fastener (5) for fixing one end or two ends of the rotating shaft (4) on the movable support (2).
6. A support base for a bending test fixture according to claim 5, wherein the spindle (4) is a bolt and the fastening member (5) is a nut.
7. A support for a bending test fixture according to claim 5, wherein the shaft (4) is a bolt and the fastening member (5) is a pin, the bolt being provided with a socket for engaging the pin.
8. A support base for a bending test fixture according to claim 6 or 7, wherein the top end of the mobile support base (2) is provided with a sliding groove (203) communicating to the through hole (202).
9. The supporting seat for the bending test fixture according to claim 4, wherein the slot (201) penetrates through the movable support (2), and two sides of the supporting portion (3) are provided with rotating shaft portions (303) extending out of the slot (201); the fixing assembly comprises hook seats (6) arranged on two sides of the movable support (2) and elastic pieces (7) used for connecting the hook seats (6) and the rotating shaft part (303); both ends of the elastic piece (7) are hooks, and the hooks can be used for being connected with the rotating shaft part (303) or the hook seat (6).
10. The supporting seat for the bending test fixture according to claim 9, wherein the rotating shaft portion (303) and the hook seat (6) are provided with limiting grooves for matching with the hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329689.0U CN216559997U (en) | 2021-09-24 | 2021-09-24 | Supporting seat for bending test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122329689.0U CN216559997U (en) | 2021-09-24 | 2021-09-24 | Supporting seat for bending test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216559997U true CN216559997U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122329689.0U Active CN216559997U (en) | 2021-09-24 | 2021-09-24 | Supporting seat for bending test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216559997U (en) |
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2021
- 2021-09-24 CN CN202122329689.0U patent/CN216559997U/en active Active
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