CN213148614U - Bending test machine for civil engineering reinforcing steel bar - Google Patents
Bending test machine for civil engineering reinforcing steel bar Download PDFInfo
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- CN213148614U CN213148614U CN202022148699.XU CN202022148699U CN213148614U CN 213148614 U CN213148614 U CN 213148614U CN 202022148699 U CN202022148699 U CN 202022148699U CN 213148614 U CN213148614 U CN 213148614U
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- bending
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- mounting seat
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Abstract
The utility model relates to a bending test machine for civil engineering reinforcing bar belongs to bending test machine's technical field, and it includes the workstation, be provided with first compression roller, second compression roller and pneumatic cylinder on the workstation, the slip is provided with the mount pad on the workstation, and the tip and the mount pad of pneumatic cylinder piston rod are connected, one side that the pneumatic cylinder was kept away from to the mount pad piston rod can be dismantled and be provided with the center of curvature, be provided with between mount pad and the center of curvature and carry out the locking Assembly who locks to the center of curvature. The locking assembly is arranged, so that the phenomenon that the bending core is not easy to separate from the mounting seat can be avoided.
Description
Technical Field
The application relates to the technical field of bending test machines, especially, relate to a bending test machine for civil engineering reinforcing bar.
Background
The bending tester is a device specially used for bending tests of metal materials such as round materials, plates, reinforcing bars for buildings and the like and pipes.
In the related art, the bending tester comprises a workbench, a first compression roller, a second compression roller and a hydraulic cylinder, wherein the first compression roller, the second compression roller and the hydraulic cylinder are fixed on the workbench, a bending core is arranged at the end part of a piston rod of the hydraulic cylinder, a connecting pin is arranged at the end part of the piston rod, a connecting hole is formed in the bending core, and the connecting pin is inserted into the connecting hole. And then starting the air cylinder, pushing the bending core to perform bending test on the reinforcing steel bars placed on the same side of the first pressing roller and the second pressing roller.
In view of the above-mentioned related art, the inventors have considered that, in the related art, when the piston rod of the hydraulic cylinder is retracted after the bending test, a phenomenon in which the piston rod and the bending core are easily separated occurs.
SUMMERY OF THE UTILITY MODEL
In order to improve because the bending core is fixed unreliable with the pneumatic cylinder piston rod, cause the piston rod and the bending core between produce the problem that breaks away from the phenomenon easily, this application provides a bending test machine for civil engineering reinforcing bar.
The application provides a bending test machine for civil engineering reinforcing bar adopts following technical scheme:
the utility model provides a bending test machine for civil engineering reinforcing bar, includes the workstation, be provided with first compression roller, second compression roller and pneumatic cylinder on the workstation, the slip is provided with the mount pad on the workstation, and the tip and the mount pad of pneumatic cylinder piston rod are connected, one side that the piston rod of pneumatic cylinder was kept away from to the mount pad can be dismantled and be provided with the turn core, be provided with the locking Assembly who carries out locking to the turn core between mount pad and the turn core.
Through adopting above-mentioned technical scheme, lock heart and mount pad through locking Assembly, pneumatic cylinder drive pneumatic cylinder piston rod extension to when driving the direction motion of mount pad towards first compression roller and second compression roller, can drive the direction motion of heart towards first compression roller. When a piston rod of the hydraulic cylinder shrinks towards a position far away from the first compression roller, the bending center can be driven to retreat through the mounting seat. Therefore, the locking assembly is arranged, and the phenomenon that the bending core is not easy to separate from the mounting seat can be avoided.
Optionally, the locking assembly comprises a pressing block and a limiting pin;
the pressing block is fixed on the mounting seat, a waist-shaped hole is formed in the pressing block, a mounting hole is formed in the mounting seat, and locking screws are inserted into the waist-shaped hole and the mounting hole;
a step groove is formed in the bending core, a pull plate is arranged on one side, away from the hydraulic cylinder, of the pressing block in a bending mode, and one side, facing the pressing block, of the pull plate and one side, facing the first pressing roller, of the step groove are tightly attached to each other;
the limiting pin is fixed on one side, far away from the hydraulic cylinder, of the mounting seat, a limiting groove is formed in the bending core, and the limiting pin is inserted into the limiting groove.
Through adopting above-mentioned technical scheme, collude the bending core through the arm-tie, then lock bending core and mount pad through locking screw, can fix between bending core and the mount pad. The waist-shaped hole is arranged, so that the bending cores with different sizes can be conveniently locked with the mounting seat.
Optionally, the mounting seat is provided with sliding grooves on two radial sides of the mounting hole, the pressing block is provided with a sliding block on one surface facing the mounting seat, the sliding block is inserted into the sliding grooves in a sliding mode, and a first spring is arranged between one surface of the sliding block facing the pulling plate and the side wall of the sliding groove.
Through adopting above-mentioned technical scheme, when the lateral wall in arm-tie and step groove pastes tightly, can exert a power towards the pneumatic cylinder direction to the arm-tie through the resilience force of first spring to can make the more reliable fixing of heart of bending on the mount pad.
Optionally, one end, away from the slider, of the first spring is fixed with a limiting block, and one side, facing the limiting block, of the limiting block is provided with a telescopic rod.
Through adopting above-mentioned technical scheme, the setting of telescopic link can lock not unidimensional core bend to can make the core bend can be more reliable fix on the mount pad.
Optionally, the telescopic link includes first pole and second pole, first pole is fixed in the spout and is towards on the lateral wall of slider, the second pole rotates and sets up in the stopper and keep away from the one side of slider, threaded connection between first pole and the second pole.
Through adopting above-mentioned technical scheme, when the size of heart of bending is less, opposite motion between first pole and the second pole is about to stopper orientation propelling movement far away from the heart of bending to can make reliably fixed between heart of bending and the mount pad. When the size of the bending core is larger, the operation is reversed.
Optionally, a mounting plane is arranged on the bending core, and the mounting plane and one surface of the mounting seat facing the bending mechanism are abutted.
Through adopting above-mentioned technical scheme, mounting plane's setting can be convenient for can reliably laminate between core and the mount pad.
Optionally, a guide groove is formed in the workbench, a guide block is arranged on one surface, facing the workbench, of the mounting seat, idler wheels are arranged on two sides of the guide block, and the idler wheels are in rolling connection with the side wall of the guide groove.
By adopting the technical scheme, when the piston rod of the hydraulic cylinder pushes the mounting seat to move, the sliding friction between the mounting seat and the workbench can be converted into rolling connection.
Optionally, a bidirectional screw is rotatably arranged on the workbench, the first compression roller is sleeved at one end of the bidirectional screw in a threaded manner, the second compression roller is sleeved at the other end of the bidirectional screw in a threaded manner, and the axis of the bidirectional screw is perpendicular to the telescopic direction of a piston rod of the hydraulic cylinder;
the rotary worktable is provided with a threaded rod in a rotating mode, the axis of the threaded rod is perpendicular to the axis of the two-way screw rod, and a limiting block is sleeved on the threaded rod.
Through adopting above-mentioned technical scheme, the setting of two-way screw rod can drive first compression roller and second compression roller relative or opposite movement. The setting of stopper can carry on spacingly to buckling of work piece to the angle of buckling of control work piece that can be more accurate.
Optionally, the workbench is provided with a first limiting roller movably between the first pressing roller and the bending core, and the workbench is provided with a second limiting roller movably between the second pressing roller and the bending core.
Through adopting above-mentioned technical scheme, the work piece that can buckle stops through the setting of first spacing roller and the spacing roller of second, makes the work piece when buckling, is difficult to because skid and the departure.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the locking assembly, the effect that the phenomenon that the bending core is not easy to separate from the mounting seat can be achieved;
2. through the arrangement of the waist-shaped hole, the telescopic rod and the first spring, the effect of conveniently locking the bending cores with different sizes and the mounting seat can be achieved;
3. through the arrangement of the guide groove, the guide block and the roller, the effect of facilitating the movement of the mounting seat and the bending center on the workbench can be achieved.
Drawings
FIG. 1 is a schematic structural view of an embodiment of the present application for embodying a locking assembly;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic view of a connection structure between a workbench and a mounting base in an embodiment of the present application;
FIG. 4 is an enlarged schematic view of the portion B of FIG. 3;
fig. 5 is an enlarged schematic view of the portion C in fig. 1.
Description of reference numerals: 1. a work table; 11. a guide groove; 12. a first mounting groove; 13. a second mounting groove; 14. a second spring; 2. a first press roll; 21. a second press roll; 22. a bidirectional screw; 3. a hydraulic cylinder; 4. a mounting seat; 41. mounting holes; 42. a chute; 43. a slider; 44. a first spring; 45. a first stopper; 46. a telescopic rod; 461. a first lever; 462. a second lever; 47. a guide block; 48. a roller; 5. bending the core; 51. a step groove; 52. a limiting groove; 53. a mounting plane; 6. a locking assembly; 61. briquetting; 611. a kidney-shaped hole; 62. a spacing pin; 63. locking the screw; 7. pulling a plate; 8. a threaded rod; 81. a second limiting block; 82. a first limit roller; 83. a second limit roller; 9. a first turntable; 91. a second turntable.
Detailed Description
The present application is described in further detail below with reference to figures 1-5.
The embodiment of the application discloses bending test machine for civil engineering reinforcing bar. Referring to fig. 1 and 2, a bending tester for civil engineering steel bars comprises a workbench 1, a bidirectional screw 22 is rotatably arranged on the workbench 1, and a first rotary table 9 is fixed on the workbench 1 and drives the bidirectional screw 22 to rotate. The two-way screw 22 is sleeved with a first pressing roller 2 and a second pressing roller 21, the first pressing roller 2 is sleeved at one end of the two-way screw 22 in a threaded manner, and the second pressing roller 21 is sleeved at the other end of the two-way screw 22 in a threaded manner. A hydraulic cylinder 3 is arranged on the workbench 1, and a mounting seat 4 is arranged at the end part of a piston rod of the hydraulic cylinder 3.
Referring to fig. 3 and 4, a guide block 47 is arranged on one surface of the mounting seat 4 facing the workbench 1, rollers 48 are arranged on two sides of the guide block 47, a guide groove 11 is formed in the workbench 1, the guide block 47 is inserted into the guide groove 11, and the rollers 48 are in rolling connection with the side wall of the guide groove 11. One side of the mounting seat 4, which is far away from the piston rod of the hydraulic cylinder 3, is detachably provided with a bending core 5. The workpiece is placed on one side of the first pressing roller 2 and one side of the second pressing roller 21 close to the bending core 5, and then the piston rod of the hydraulic cylinder 3 is driven to push the bending core 5, so that the workpiece can be bent.
Referring to fig. 1 and 5, a threaded rod 8 is rotatably provided on the table 1, and a second rotary plate 91 fixed to the table 1 to drive the threaded rod 8 to rotate. The axis of the threaded rod 8 and the axis of the bidirectional threaded rod 22 are perpendicular to each other, and a second limiting block 81 is sleeved on the threaded rod 8 in a threaded manner. A first mounting groove 12 and a second mounting groove 13 are formed in the workbench 1, and the first mounting groove 12 and the second mounting groove 13 are arranged in parallel with the bidirectional screw 22. A first limiting roller 82 is arranged on the workbench 1 and in the first mounting groove 12, a second limiting roller 83 is arranged on the workbench 1 and in the second mounting groove 13, and second springs 14 are fixedly arranged on two sides of the first limiting roller 82 and the second limiting roller 83 which deviate from each other.
Referring to fig. 2 and 4, a locking assembly 6 for locking the bending core 5 is arranged between the mounting seat 4 and the bending core 5, the locking assembly 6 comprises a pressing block 61 and a limiting pin 62, a waist-shaped hole 611 is formed in the pressing block 61, a mounting hole 41 is formed in the mounting seat 4, and a locking screw 63 is inserted in the waist-shaped hole 611 and the mounting hole 41. One side of the pressing block 61, which is far away from the hydraulic cylinder 3, is bent to be provided with a pulling plate 7, the bending core 5 is provided with a step groove 51, and one surface, facing the first pressing roller 2, of the step groove 51 and one surface, facing the pressing block 61, of the pulling plate 7 are attached tightly. The position between the locking screw 63 and the pressing piece 61 is controlled according to the different sizes of the bendings 5. The limiting pin 62 is fixed on one side of the mounting seat 4 far away from the hydraulic cylinder 3, the mounting plane 53 is arranged on the bending core 5, the mounting plane 53 abuts against one side of the mounting seat 4 facing the bending mechanism, the limiting groove 52 is formed in the bending core 5 and in the direction of the mounting plane 53 far away from the hydraulic cylinder 3, and the limiting pin 62 is inserted into the limiting groove 52.
Referring to fig. 2, the mounting seat 4 is provided with two sliding grooves 42 on two radial sides of the mounting hole 41, two sliding blocks 43 are arranged on one surface of the pressing block 61 facing the mounting seat 4, and the two sliding blocks 43 and the two sliding grooves 42 are inserted in a one-to-one correspondence manner. A first spring 44 is arranged between one surface of the slide block 43 facing the pulling plate 7 and the side wall of the sliding groove 42, and can lock bending cores 5 with different sizes. A second limiting block 45 is fixed at one end of the first spring 44 far away from the sliding block 43, and an expansion rod 46 is arranged on one surface of the second limiting block 45 facing the pressing block 61. The telescopic rod 46 includes a first rod 461 and a second rod 462, the first rod 461 is fixed on the side wall of the sliding slot 42 facing the sliding block 43, the second rod 462 is rotatably disposed on the surface of the limiting block 8145 away from the sliding block 43, and the second rod 462 is sleeved on the first rod 461 through a screw rod. When the first rod 461 and the second rod 462 move relatively, the sliding block 43 can move towards the bending core 5, so that the bending core 5 with larger size can be fixed. When the first rod 461 and the second rod 462 are moved oppositely, the slider 43 can be moved away from the bending core 5, so that the bending core 5 with a smaller size can be fixed.
The embodiment of the application provides a bending test machine for civil engineering reinforcing bar's implementation principle does: first, an appropriate bending center 5 is selected according to the angle at which the workpiece is bent, and the distance between the first pressing roller 2 and the second pressing roller 21 is adjusted. Next, the workpiece is placed at a position where the first pressing roller 2 and the second pressing roller 21 face the bending core 5, and at a side where the first stopper rod and the second stopper rod 82 and the second stopper rod 83 are away from the bending core 5. Then, the hydraulic cylinder 3 is actuated to drive the bending core 5 to bend the workpiece, the two ends of the workpiece move relatively, the second spring 14 is elongated, and the first and second limiting rollers 82 and 83 move in opposite directions. If the bending core 5 is disconnected from the workpiece, the position of the workpiece can be limited by the first pressing roller 2, the second pressing roller 21, the first limiting roller 82 and the second limiting roller 83, so that the workpiece is not easy to directly fly out. In this embodiment, the lower part of the workbench 1 is provided with a plurality of layers, so that the bending cores 5 can be stored conveniently.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a bending test machine for civil engineering reinforcing bar, includes workstation (1), be provided with first compression roller (2), second compression roller (21) and pneumatic cylinder (3) on workstation (1), its characterized in that: the sliding device is characterized in that a mounting seat (4) is arranged on the workbench (1), the end part of a piston rod of the hydraulic cylinder (3) is connected with the mounting seat (4), one side, far away from the piston rod of the hydraulic cylinder (3), of the mounting seat (4) can be detachably provided with a bending core (5), and a locking assembly (6) for locking the bending core (5) is arranged between the mounting seat (4) and the bending core (5).
2. The bending tester for civil engineering steel bars according to claim 1, characterized in that: the locking assembly (6) comprises a pressing block (61) and a limiting pin (62);
the pressing block (61) is fixed on the mounting seat (4), a waist-shaped hole (611) is formed in the pressing block (61), a mounting hole (41) is formed in the mounting seat (4), and a locking screw (63) is inserted into the waist-shaped hole (611) and the mounting hole (41);
a step groove (51) is formed in the bending core (5), a pull plate (7) is arranged on one side, away from the hydraulic cylinder (3), of the pressing block (61) in a bending mode, and one surface, facing the pressing block (61), of the pull plate (7) is tightly attached to one surface, facing the first pressing roller (2), of the step groove (51);
the limiting pin (62) is fixed on one side, far away from the hydraulic cylinder (3), of the mounting seat (4), a limiting groove (52) is formed in the bending core (5), and the limiting pin (62) is inserted into the limiting groove (52).
3. The bending tester for civil engineering steel bars according to claim 2, characterized in that: the mounting seat (4) is provided with sliding grooves (42) on two radial sides of the mounting hole (41), a sliding block (43) is arranged on one surface of the pressing block (61) facing the mounting seat (4), the sliding block (43) is inserted into the sliding grooves (42) in a sliding mode, and a first spring (44) is arranged between one surface of the sliding block (43) facing the pulling plate (7) and the side wall of the sliding groove (42).
4. The bending tester for civil engineering steel bars according to claim 3, characterized in that: one end, far away from the sliding block (43), of the first spring (44) is fixed with a first limiting block (45), and a telescopic rod (46) is arranged on one face, facing the pressing block (61), of the first limiting block (45).
5. The bending tester for the civil engineering steel bar of claim 4, wherein: the telescopic rod (46) comprises a first rod (461) and a second rod (462), the first rod (461) is fixed on the side wall, facing the sliding block (43), of the sliding groove (42), the second rod (462) is rotatably arranged on one surface, away from the sliding block (43), of the first limiting block (45), and the first rod (461) is in threaded connection with the second rod (462).
6. The bending tester for the civil engineering steel bar of claim 5, wherein: the bending mechanism is characterized in that a mounting plane (53) is arranged on the bending core (5), and the mounting plane (53) is abutted to one surface, facing the bending mechanism, of the mounting seat (4).
7. The bending tester for civil engineering steel bars according to claim 1, characterized in that: the guide groove (11) has been seted up on workstation (1), mount pad (4) are provided with guide block (47) towards the one side of workstation (1), the both sides of guide block (47) are provided with gyro wheel (48), gyro wheel (48) and guide groove (11) lateral wall roll connection.
8. The bending tester for civil engineering steel bars according to claim 1, characterized in that: the workbench (1) is rotatably provided with a bidirectional screw (22), the first compression roller (2) is sleeved at one end of the bidirectional screw (22) in a threaded manner, the second compression roller (21) is sleeved at the other end of the bidirectional screw (22) in a threaded manner, and the axis of the bidirectional screw (22) is perpendicular to the telescopic direction of a piston rod of the hydraulic cylinder (3);
the rotary worktable is characterized in that a threaded rod (8) is arranged on the worktable (1) in a rotating mode, the axis of the threaded rod (8) is perpendicular to the axis of the two-way screw (22), and a second limiting block (81) is sleeved on the threaded rod (8).
9. The bending tester for civil engineering steel bars according to claim 8, characterized in that: the automatic bending machine is characterized in that a first limiting roller (82) is movably arranged on the workbench (1) and between the first pressing roller (2) and the bending core (5), and a second limiting roller (83) is movably arranged on the workbench (1) and between the second pressing roller (21) and the bending core (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022148699.XU CN213148614U (en) | 2020-09-26 | 2020-09-26 | Bending test machine for civil engineering reinforcing steel bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022148699.XU CN213148614U (en) | 2020-09-26 | 2020-09-26 | Bending test machine for civil engineering reinforcing steel bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213148614U true CN213148614U (en) | 2021-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022148699.XU Expired - Fee Related CN213148614U (en) | 2020-09-26 | 2020-09-26 | Bending test machine for civil engineering reinforcing steel bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213148614U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466026A (en) * | 2021-05-19 | 2021-10-01 | 福建省建研工程检测有限公司 | Reinforcing steel bar reverse bending test fixture and test method of support roller type bending test machine |
-
2020
- 2020-09-26 CN CN202022148699.XU patent/CN213148614U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113466026A (en) * | 2021-05-19 | 2021-10-01 | 福建省建研工程检测有限公司 | Reinforcing steel bar reverse bending test fixture and test method of support roller type bending test machine |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210507 |