CN213148615U - High fluid pressure type bending test machine of security - Google Patents

Abstract

The utility model relates to a high fluid pressure type bending test machine of security belongs to the field of bending test equipment, and it includes the frame, fixedly connected with work platform in the frame, the pneumatic cylinder is installed to one side of work platform, the opposite side of workstation is installed and is supported tight subassembly, be provided with the piston rod in the pneumatic cylinder, the piston rod sets up towards the butt subassembly, the one end fixedly connected with cartridge assembly of piston rod, cartridge assembly includes the connecting block, the one end and the piston rod fixed connection of connecting block, columniform centre of curvature is installed to the other end of connecting block, the one end that the piston rod was kept away from to the connecting block is fixed with the bolt, the jack has been seted up on the global of centre of curvature, the bolt is worn to establish in the jack, the axial terminal surface of centre. This application has effectively improved the stability of being connected of heart and piston rod for the heart is difficult for the departure when experimental, improves experimental installation nature.

Description

High fluid pressure type bending test machine of security

Technical Field

The application relates to the field of bending test equipment, in particular to a high-safety hydraulic bending test machine.

Background

The bending tester is an instrument mainly used in cold bending tests of metal reinforcing steel bars and metal pipe fittings, has the characteristics of simple operation, convenient use and high use flexibility, and is widely applied to various metal laboratories.

The related chinese utility model patent with publication number CN204731105U discloses a hydraulic bending tester, which comprises a frame, a hydraulic cylinder, a piston, a bending core, a support plate, a first pressure-bearing roller, a second pressure-bearing roller, a lead screw and a hand wheel; the hydraulic oil cylinder is arranged at the upper part of the frame and is connected with and drives the piston; the bending core is fixedly arranged at the front end of the piston and is linked with the piston; the supporting plate is fixedly held on the frame; the first bearing roller and the second bearing roller are respectively matched with a screw rod through a screw rod seat; the lead screw is rotationally connected to the rack; the hand wheel is arranged at one end of the screw rod and can rotate the screw rod. The utility model discloses a fluid pressure type bending test machine has a great deal of advantages such as simple structure, with low costs, easy to operate.

In view of the above-mentioned related technologies, the inventor believes that when the bending test machine performs a bending test, the bending core applies pressure to a workpiece to be tested, and if the connection between the bending core and the piston is unstable, the bending core is easily subjected to excessive pressure and flies, thereby causing a test accident.

SUMMERY OF THE UTILITY MODEL

The application provides a high fluid pressure type bending test machine of security in order to improve the bending core and receive the too big easy problem that flies out and cause the test accident of pressure.

The application provides a high fluid pressure type bending test machine of security adopts following technical scheme:

the utility model provides a high fluid pressure type bending test machine of security, includes the frame, fixedly connected with work platform in the frame, the pneumatic cylinder is installed to one side of work platform, the opposite side of workstation is installed and is supported tight subassembly, be provided with the piston rod in the pneumatic cylinder, the piston rod sets up towards the butt subassembly, the one end fixedly connected with cartridge assembly of piston rod, cartridge assembly includes the connecting block, the one end and the piston rod fixed connection of connecting block, the columniform centre of curvature is installed to the other end of connecting block, the one end that the piston rod was kept away from to the connecting block is fixed with the bolt, the jack has been seted up on the global of centre of curvature, the bolt is worn to establish in the jack, the axial terminal surface of.

By adopting the technical scheme, when a worker uses the bending tester, the bending core is required to be installed at one end of the piston rod, and the clamping head assembly is fixedly arranged at one end of the piston rod, so that the bending core is convenient to install. When carrying out the installation of curved heart, insert the bolt in the jack of curved heart for the curved heart is difficult to break away from the departure to the axial both sides of piston rod, and curved heart and connecting block butt, the lower terminal surface and the work platform of curved heart laminate mutually, further restrict the portable direction of curved heart, improve the stability of being connected between curved heart and the connecting block, thereby make this curved heart when exerting pressure to work pieces such as reinforcing bar, the curved heart is difficult to break away from the departure on the connecting block, improves experimental security.

Optionally, a connecting groove with a V-shaped cross section is formed in the end face of the connecting block, which is far away from the piston rod, and the inner wall of the connecting groove is abutted to the circumferential surface of the bending core.

Through adopting above-mentioned technical scheme for the curved core receives the pressure that comes from the connecting block more balanced, thereby the curved core is difficult for breaking away from between too big and the connecting block because of pressure.

Optionally, the pressing plate is installed on the side, away from the working platform, of the connecting block, the long hole is formed in the pressing plate and extends axially along the piston rod, a locking bolt penetrates through the long hole, the end, penetrating through the long hole, of the locking bolt is in threaded connection with the connecting block, and the bottom face, away from the end of the piston rod, of the pressing plate is abutted to the end face, away from the working platform, of the bending center.

Through adopting above-mentioned technical scheme, place the up end of clamp plate on the curved center, afterwards, the locking bolt of screwing for clamp plate and curved center butt, thereby further improve the stability of being connected of curved center and cartridge subassembly, then improve experimental security.

Optionally, one end of the workbench, which is close to the abutting assembly, is hinged with a protective cover, and the protective cover is opened towards a direction away from the working platform.

Through adopting above-mentioned technical scheme, when testing, with the protection casing cover in supporting tightly the subassembly periphery, the protection casing plays safety protection's effect, effectively blocks work piece or curved heart departure, improves experimental security. The protection casing is opened towards the direction of keeping away from work platform, is difficult for producing the interference hindrance to test personnel's test operation.

Optionally, the end face of the protective cover far away from the working platform is made of a barrier net plate.

Through adopting above-mentioned technical scheme, conveniently observe the experimental condition in the protection casing, reduce the emergence of unexpected condition.

Optionally, the tight subassembly of support includes first branch roller, second branch roller, support frame and adjustment mechanism, work platform keeps away from one side of pneumatic cylinder and has seted up the mounting groove, the support frame is fixed in the mounting groove, the one side that the frame was kept away from to the support frame is parallel and level mutually with work platform's surface, first branch roller and second branch roller are all fixed to be set up on adjustment mechanism, adjustment mechanism installs in the support frame, first branch roller and second branch roller set up along the axis direction symmetry of piston rod.

By adopting the technical scheme, when an experimenter conducts an experiment, the distance between the first branch roller and the second branch roller is adjusted to a proper length through the adjusting mechanism, a workpiece to be tested is placed between the first branch roller and the second roller and is positioned on one side, close to the bending center, of the first branch roller and the second branch roller, the bending center continuously and slowly applies pressure to the workpiece, the two ends of the workpiece to be tested are abutted by the first branch roller and the second branch roller until the workpiece to be tested reaches a specified angle, the bending tester is unloaded at the moment, and the workpiece to be tested is loosened and taken out to be observed.

Optionally, adjustment mechanism includes first nut seat, second nut seat, lead screw and regulation handle, the spout has been seted up along its length direction to the support frame, the lead screw is located the spout and the both ends of lead screw rotate with the support frame to be connected, the one end of lead screw is worn out the support frame and is adjusted handle fixed connection, first nut seat and second nut seat all overlap establish on the lead screw and with lead screw threaded connection, first nut seat and second nut seat all are located the spout and with support frame sliding connection, the lead screw be connected with first nut seat revolve to with the revolve to opposite that the lead screw is connected with second nut seat, first bearing roller is fixed on first nut seat, the second bearing roller is fixed on second nut seat.

Through adopting above-mentioned technical scheme, when carrying out the regulation of distance between first branch roller and the second branch roller, rotate the regulation handle, it drives the lead screw rotation to adjust the handle, the lead screw drives first nut seat and second nut seat along the axial displacement of lead screw, and then drives first branch roller and second branch roller along the axial displacement of lead screw, again because this lead screw is two-way lead screw, make the moving direction of first branch roller and second branch roller opposite, thereby can be effectively simple and convenient adjust the distance between first branch roller and second branch roller.

Optionally, the surface of the support frame far away from the rack is provided with a scale strip, the scale strip is located on one side of the sliding groove, and the scale strip extends along the length direction of the support frame.

Through adopting above-mentioned technical scheme, conveniently carry out more accurate regulation to the distance between first branch roller and the second branch roller to be convenient for test the crooked condition of the work piece that awaits measuring under the different moments.

In summary, the present application includes at least one of the following beneficial technical effects:

1. by arranging the chuck component, the installation of the bent core is convenient, and meanwhile, the connection stability of the bent core and the piston rod is effectively improved, so that the bent core is not easy to fly out during testing, and the test installation performance is improved;

2. the protective cover is arranged, so that the safety protection effect is achieved, and the test accidents caused by the flying of the workpiece to be tested or the bent core are reduced;

3. through setting up adjusting part, the distance between first branch roller and the second branch roller is conveniently adjusted, improves experimental convenience.

Drawings

Fig. 1 is a schematic view of an overall structure of a hydraulic bending tester with high safety according to an embodiment of the present invention.

Figure 2 is a schematic illustration of an exploded view of a cartridge assembly in an embodiment of the present application.

Fig. 3 is a schematic view of the overall structure of the fastening assembly in the embodiment of the present application.

Description of reference numerals: 1. a frame; 11. a placement groove; 12. placing the plate; 2. a working platform; 21. mounting grooves; 3. a hydraulic cylinder; 31. a piston rod; 4. a chuck assembly; 41. connecting blocks; 411. connecting grooves; 42. pressing a plate; 421. a long hole; 43. a bolt; 44. locking the bolt; 5. bending the core; 51. a jack; 6. a propping component; 61. a first support roller; 62. a second branch roller; 63. a support frame; 631. a chute; 632. a scale bar; 64. an adjustment mechanism; 641. a first nut seat; 642. a second nut seat; 643. a lead screw; 644. adjusting the handle; 645. a connecting shaft; 646. locking the nut; 7. a shield.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses high fluid pressure type bending test machine of security. Referring to fig. 1, the bending tester comprises a frame 1, a working platform 2, a clamping assembly 6, a hydraulic cylinder 3 and a protective cover 7. Work platform 2 level welded fastening is in frame 1, and pneumatic cylinder 3 installs and just is located one side of work platform 2 in frame 1, supports tight subassembly 6 and installs on work platform 2 and is located the one end that work platform 2 kept away from pneumatic cylinder 3. The protective cover 7 is hinged to the edge of the working platform 2 close to the abutting component 6, the protective cover 7 is opened towards the direction far away from the working platform 2, and the upper end face of the protective cover 7 is made of a barrier net plate.

Referring to fig. 1, a placing groove 11 is formed in the side wall of a frame 1, a plurality of placing plates 12 are welded and fixed in the placing groove 11, and the plurality of placing plates 12 are used for placing bending cores 5 and support rollers of different models. A piston rod 31 is arranged in the hydraulic cylinder 3, the piston rod 31 is arranged towards the abutting component 6, and one end, far away from the hydraulic cylinder 3, of the piston rod 31 is connected with the chuck component 4.

Referring to fig. 1 and 2, the chuck assembly 4 includes a connecting block 41 and a pressing plate 42, a lower surface of the connecting block 41 is attached to the working platform 2, a connecting groove 411 having a V-shaped cross section is formed in an end surface of the connecting block 41 away from the piston rod 31, a plug pin 43 is welded and fixed in the connecting groove 411, and an axis of the plug pin 43 is parallel to an axis of the piston rod 31. The end of the connecting block 41 far away from the piston rod 31 is provided with a bending core 5, and the circumferential surface of the bending core 5 is provided with an insertion hole 51 matched with the bolt 43. The pressing plate 42 is located on one surface of the connecting block 41 far away from the working platform 2, a long hole 421 is axially formed in the pressing plate 42 along the piston rod 31, and a locking bolt 44 penetrates through the long hole 421. When the bending core 5 is installed on the chuck assembly 4, the plug pin 43 is inserted into the insertion hole 51, the lower end surface of the bending core 5 is attached to the working platform 2, the inner wall of the connection groove 411 is abutted to the peripheral surface of the bending core 5, and the bottom surface of the end of the pressing plate 42 away from the piston rod 31 is abutted to the end surface of the bending core 5 away from the working platform 2.

Referring to fig. 1 and 3, a mounting groove 21 is formed in one side of the working platform 2, which is far away from the hydraulic cylinder 3, and the abutting component 6 is located in the mounting groove 21. Support tight subassembly 6 and include first roller 61, second roller 62, support frame 63 and adjustment mechanism 64, support frame 63 welded fastening is in mounting groove 21, and the length direction of support frame 63 is perpendicular mutually with the axial of piston rod 31, and the one side that frame 1 was kept away from to support frame 63 is parallel and level mutually with work platform 2's upper surface, and support frame 63 has seted up spout 631 along its length direction, and adjustment mechanism 64 is located spout 631. The support frame 63 is provided with a scale strip 632 on the surface away from the frame 1, the scale strip 632 is located one side of the chute 631, and the scale strip 632 extends along the length direction of the support frame 63.

Referring to fig. 3, the adjusting mechanism 64 includes a first nut seat 641, a second nut seat 642, a lead screw 643 and an adjusting handle 644, the lead screw 643 is located in the slide groove 631, two ends of the lead screw 643 are rotatably connected to the support frame 63, one end of the lead screw 643 penetrates through the support frame 63 and is fixedly connected to the adjusting handle 644, the first nut seat 641 and the second nut seat 642 are both located in the slide groove 631, the first nut seat 641 and the second nut seat 642 are both slidably connected to the support frame 63, and the first nut seat 641 and the second nut seat 642 are both sleeved on the lead screw 643 and are spirally connected to the lead screw 643. The lead screw 643 is a bidirectional lead screw 643, the screw directions of the lead screw 643 along two sides of the center of the lead screw 643 are opposite, the first nut seat 641 and the second nut seat 642 are symmetrically distributed along the center of the lead screw 643, the connecting shaft 645 is vertically fixed on each of the first nut seat 641 and the second nut seat 642, the first support roller 61 is sleeved on the connecting shaft 645 on the first nut seat 641, the second support roller 62 is sleeved on the connecting shaft 645 on the second nut seat 642, and one end, far away from the supporting frame 63, of the connecting shaft 645 is in threaded connection with the locking nut 646. The first and second support rollers 61 and 62 are disposed symmetrically in the axial direction of the piston rod 31. When adjusting the distance between the first support roller 61 and the second support roller 62, the adjustment knob 644 is rotated, the adjustment knob 644 rotates the lead screw 643, the lead screw 643 drives the first nut seat 641 and the second nut seat 642 to move along the axial direction of the lead screw 643, and the first support roller 61 and the second support roller 62 are further driven to move along the axial direction of the lead screw 643.

The implementation principle of the high fluid pressure type bending test machine of security of this application embodiment is: when the staff uses this bending test machine, install on cartridge assembly 4 with core bend 5 earlier, when carrying out the installation of core bend 5, insert in jack 51 of core bend 5 with bolt 43, make core bend 5 be difficult for breaking away from the departure to the axial both sides of piston rod 31, the global and the connecting block 41 butt of core bend 5, the lower terminal surface and the work platform 2 of core bend 5 laminate mutually, the locking bolt 44 of screwing, make clamp plate 42 and the up end butt of core bend 5, improve the stability of being connected between core bend 5 and the connecting block 41, thereby make this core bend 5 when exerting pressure to work pieces such as reinforcing bar, core bend 5 is difficult for the departure, improve experimental security.

Subsequently, the distance between the first support roller 61 and the second support roller 62 is adjusted according to the experiment requirement, and the tester rotates the adjusting handle 644 to rotate the lead screw 643, so that the lead screw 643 drives the first nut seat 641 and the second nut seat 642 to move along the axial direction of the lead screw 643, and further drives the first support roller 61 and the second support roller 62 to move along the axial direction of the lead screw 643. After adjustment is completed, a workpiece to be measured is placed between the first supporting roller 61 and the second supporting roller, the bending center 5 continuously and slowly applies pressure to the workpiece, the first supporting roller 61 and the second supporting roller 62 tightly support two ends of the workpiece to be measured until the workpiece to be measured reaches a specified angle, at the moment, the bending tester is unloaded, the workpiece to be measured is loosened and taken out for observation, and if no surface defects such as fracture, crack, peeling and the like appear on the outer surface and the side surface of the workpiece to be measured, the workpiece to be measured is qualified.

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 (8)

1. The utility model provides a high fluid pressure type bending test machine of security, includes frame (1), fixedly connected with work platform (2) on frame (1), pneumatic cylinder (3) are installed to one side of work platform (2), work platform's opposite side is installed and is supported tight subassembly (6), be provided with piston rod (31) in pneumatic cylinder (3), piston rod (31) set up its characterized in that towards the butt subassembly: one end fixedly connected with cartridge (4) of piston rod (31), cartridge (4) includes connecting block (41), the one end and piston rod (31) fixed connection of connecting block (41), columniform heart of bending (5) are installed to the other end of connecting block (41), the one end that piston rod (31) were kept away from in connecting block (41) is fixed with bolt (43), jack (51) have been seted up on global of heart of bending (5), bolt (43) are worn to establish in jack (51), a axial terminal surface of heart of bending (5) is laminated with work platform (2) mutually.

2. The hydraulic bending tester with high safety according to claim 1, wherein: the end face, far away from the piston rod (31), of the connecting block (41) is provided with a connecting groove (411) with a V-shaped cross section, and the inner wall of the connecting groove (411) is abutted to the circumferential surface of the bending core (5).

3. The hydraulic bending tester with high safety according to claim 2, wherein: pressing plate (42) are installed to the one side that work platform (2) were kept away from in connecting block (41), slot hole (421) have been seted up on pressing plate (42), piston rod (31) axial extension setting is followed in slot hole (421), wear to be equipped with locking bolt (44) in slot hole (421), the one end and connecting block (41) threaded connection of slot hole (421) are passed in locking bolt (44), the terminal surface looks butt of work platform (2) is kept away from with curved heart (5) to the bottom surface of the one end of piston rod (31) is kept away from in pressing plate (42).

4. The hydraulic bending tester with high safety according to claim 1, wherein: one end, close to the abutting component (6), of the working platform (2) is hinged to a protective cover (7), and the protective cover (7) is opened towards the direction far away from the working platform (2).

5. The hydraulic bending tester with high safety according to claim 4, wherein: the end face, far away from the working platform (2), of the protective cover (7) is made of a barrier net plate.

6. The hydraulic bending tester with high safety according to claim 1, wherein: support tight subassembly (6) and include first roller (61), second roller (62), support frame (63) and adjustment mechanism (64), mounting groove (21) have been seted up to one side that pneumatic cylinder (3) were kept away from in work platform (2), support frame (63) are fixed in mounting groove (21), the one side that frame (1) were kept away from in support frame (63) is parallel and level with the surface of work platform (2) mutually, first roller (61) and second roller (62) are all fixed to be set up on adjustment mechanism (64), adjustment mechanism (64) are installed in support frame (63), first roller (61) and second roller (62) set up along the axis direction symmetry of piston rod (31).

7. The hydraulic bending tester with high safety according to claim 6, wherein: the adjusting mechanism (64) comprises a first nut seat (641), a second nut seat (642), a lead screw (643) and an adjusting handle (644), the supporting frame (63) is provided with a sliding groove (631) along the length direction, the lead screw (643) is positioned in the sliding groove (631), two ends of the lead screw (643) are rotatably connected with the supporting frame (63), one end of the lead screw (643) penetrates through the supporting frame (63) and is fixedly connected with the adjusting handle (644), the first nut seat (641) and the second nut seat (642) are both sleeved on the lead screw (643) and are in threaded connection with the lead screw (643), the first nut seat (641) and the second nut seat (642) are both positioned in the sliding groove (631) and are in sliding connection with the supporting frame (63), the screwing direction of the lead screw (643) connected with the first nut seat (641) is opposite to the screwing direction of the lead screw (643) connected with the second nut seat (642), the first support roller (61) is fixed to a first nut base (641), and the second support roller (62) is fixed to a second nut base (642).

8. The hydraulic bending tester with high safety according to claim 7, wherein: frame (1) is kept away from in support frame (63) on the surface be provided with scale strip (632), scale strip (632) are located one side of spout (631), the length direction extension setting of support frame (63) is followed in scale strip (632).

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