CN210465093U

CN210465093U - Universal testing machine

Info

Publication number: CN210465093U
Application number: CN201921231145.7U
Authority: CN
Inventors: 蒋建国; 汪佳琪; 郭建虎; 顾燕菁; 詹嘉纬
Original assignee: Hangzhou Guohua Testing Technology Co Ltd
Current assignee: Hangzhou Guohua Testing Technology Co Ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-05-05
Anticipated expiration: 2029-07-31

Abstract

The utility model relates to a universal tester, which comprises a base, a support rod, an upper crossbeam, a lower crossbeam, a clamp arranged on the opposite surface of the upper crossbeam and the lower crossbeam, two support plates arranged on the upper surface of the base, a press block arranged at the bottom of the lower crossbeam and used for bending a workpiece, and an elevating mechanism used for driving the lower crossbeam to move up and down, wherein the bottom of the lower crossbeam is fixedly connected with an installation block, a first mounting groove is formed in one surface of the installation block facing the support plates, a connecting block in clamping fit with the first mounting groove is fixedly connected to the press block, and a locking mechanism for clamping and positioning the connecting block is arranged on the installation block; the upper surface of the base is provided with a chute, the supporting plate is fixedly connected with a sliding block, and the sliding block is embedded in the chute in a sliding manner; the supporting plate is also provided with a propping component which props and positions the supporting plate on the base. The scheme can select the pressing block with a proper radian according to the actual processing requirement and can also select the pressing block with a proper radian according to the reality of the workpiece.

Description

Universal testing machine

Technical Field

The utility model belongs to the technical field of the technique of building engineering material mechanical properties check out test set and specifically relates to an universal tester is related to.

Background

The universal tester is a material tester integrating the functions of stretching, bending, compressing, shearing, ring rigidity and the like, is mainly used for mechanical property tests of metal and non-metal materials, and is ideal detection equipment for departments such as industrial and mining enterprises, scientific research units, universities and colleges, engineering quality supervision stations and the like.

As shown in fig. 4, the universal testing machine shown in the figure comprises a base 1, a support rod 2 arranged on the base 1, an upper cross beam 3 arranged at the top of the support rod 2, a lower cross beam 4 arranged below the upper cross beam 3, a clamp 7 arranged on the opposite surface of the upper cross beam 3 and the lower cross beam 4, two L-shaped support plates 8 fixedly connected to the upper surface of the base 1 and used for placing a workpiece, a pressing block 12 fixedly connected to the bottom of the lower cross beam 4 and used for bending the workpiece, and an elevating mechanism 5 used for driving the lower cross beam 4 to move up and down. The universal testing machine can be used for testing the tensile force, the shearing force and other experiments of the steel bar, and can also be used for pressing and bending the workpiece through the pressing block 12 to obtain the workpiece with the required shape.

Although the experiment of reinforcing bar and the operation design of crooked work piece to an equipment, satisfied operator's user demand in above-mentioned technique, because the specification and size of briquetting is fixed dead, so above-mentioned device can only carry out the bending deformation of specific radian to the work piece, can't carry out the bending deformation of more radians to the work piece, has seriously reduced the practicality of device.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an universal tester can carry out the bending deformation of more radians to the work piece, is favorable to improving the practicality of device.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a universal testing machine comprises a base, a supporting rod arranged on the base, an upper cross beam arranged at the top of the supporting rod, a lower cross beam arranged below the upper cross beam, a clamp for installing the opposite surfaces of the upper cross beam and the lower cross beam, two supporting plates arranged on the upper surface of the base and used for placing a workpiece, a pressing block arranged at the bottom of the lower cross beam and used for bending the workpiece, and a lifting mechanism used for driving the lower cross beam to move up and down, wherein an installation block is fixedly connected to the bottom of the lower cross beam, a first installation groove is formed in one surface of the installation block, which faces the supporting plates, a connecting block in clamping fit with the first installation groove is fixedly connected to the pressing block, and a locking mechanism for clamping and positioning the; the upper surface of the base is provided with a chute, the supporting plate is fixedly connected with a sliding block, and the sliding block is embedded in the chute in a sliding manner; and the supporting plate is also provided with a propping assembly which tightly props the supporting plate to be positioned on the base.

Through adopting above-mentioned technical scheme, the operator can select the briquetting of suitable radian according to the processing demand of reality, and the operator aligns the connecting block and inserts first mounting groove in, and locking mechanical system just can carry out the joint location to the connecting block, and the connecting block will be locked in first mounting groove, and the briquetting is locked on the installation piece promptly. If dismantle the change to the briquetting, the operator only need cancel locking mechanical system to the locking of connecting block position can, the operation process is very convenient equally. In addition, the operator still can change the interval between two backup pads through slider and spout to the work piece of adaptation different length has further improved the practicality and the flexibility that the device used, when the backup pad slides to suitable position on, the operator rethread support tight subassembly to the position of backup pad support the tight location can, it is equally very convenient in the operation. Compare and can only carry out the bending deformation of specific radian to the work piece of specific length among the prior art, this scheme not only can select the briquetting of suitable radian according to the processing demand of reality, still can adjust the interval between two backup pads according to the actual length of work piece, has improved flexibility and the practicality that the device used greatly.

The utility model discloses further set up to: the locking mechanism comprises a second mounting groove formed in the inner side wall of the first mounting groove, a clamping groove which is formed in the connecting block and is opposite to the second mounting groove in the process that the connecting block is inserted into the first mounting groove, a clamping block which is connected in the second mounting groove in a sliding mode, a spring which is arranged in the second mounting groove and used for driving the clamping block to be embedded into the clamping groove, and a dismounting assembly which is arranged on the mounting block and used for driving the clamping block to be separated from the clamping groove.

Through adopting above-mentioned technical scheme, when draw-in groove on the connecting block and the second mounting groove on the installation piece keep just to the time, the fixture block will be automatic embedding draw-in groove under the resilience force of spring in, the horizontal position of connecting block will be locked, and the briquetting is installed on the installation piece successfully promptly. If dismantle the change to the briquetting, the operator makes the fixture block break away from the draw-in groove through the dismantlement subassembly again can, and the structure principle is simple, and is very convenient in the operation equally.

The utility model discloses further set up to: the disassembling component comprises a pull rope which is connected to the mounting block in a sliding mode and used for pulling the clamping block to be separated from the clamping groove, a pull ring which is fixedly connected to the pull rope and far away from one end of the clamping block, and a drag hook which is arranged on the mounting block and used for hooking the pull ring when the clamping block is separated from the clamping groove.

Through adopting above-mentioned technical scheme, the operator drives the stay cord motion through the pulling pull ring, and the stay cord just can drive the fixture block and break away from the draw-in groove, and the position locking relation between installation piece and the connecting block just so can be cancelled, and the operator can dismantle the briquetting. In addition, when the fixture block breaks away from with the draw-in groove, operator's accessible drag hook catches on the pull ring, has avoided the condition in the fixture block reinserts the draw-in groove under the effort that resets of spring, can make the dismantlement of briquetting more smooth.

The utility model discloses further set up to: one of the ends of the clamping block, far away from the spring, is provided with a guide surface matched with the connecting block in an abutting mode, and when the guide surface abuts against the connecting block, the clamping block retracts into the second mounting groove.

Through adopting above-mentioned technical scheme, the operator packs the connecting block into the in-process in the first mounting groove, the connecting block will contact with the spigot surface on the fixture block first, under the combined action of connecting block and spigot surface, the fixture block will compress spring and enter into the second mounting groove automatically, need not the operator at this moment in the drive fixture block gets into the second mounting groove earlier in advance, reduced operating procedure, make the locking of connecting block simpler, the installation of briquetting is more smooth promptly.

The utility model discloses further set up to: the abutting component comprises a threaded hole which is formed in the supporting plate and communicated with the upper surface of the base and a bolt which is connected to the threaded hole in a threaded mode, and one end of the bolt abuts against the upper surface of the base.

Through adopting above-mentioned technical scheme, when the backup pad slided to suitable position on, the operator rotated the bolt and made the one end of bolt support tightly at the upper surface of base, can support tightly the location to the position of backup pad, and the structural principle is simple, and the operation is very convenient.

The utility model discloses further set up to: the upper surface of the base is provided with a scale groove for displaying the sliding position of the supporting plate.

Through adopting above-mentioned technical scheme, the setting in scale groove not only can make the position adjustment of backup pad quick more and accurate, still can make the briquetting accurately be located between two backup pads simultaneously, makes the atress in work piece later stage more even, is favorable to improving the crooked quality of work piece.

The utility model discloses further set up to: the length direction of the sliding groove and the width direction of the base are arranged in a crossed mode.

By adopting the technical scheme, the sliding area of the supporting plates can be increased by the inclined sliding grooves, so that the two supporting plates can adapt to workpieces with more length sizes, and the flexibility and the practicability of the device are improved.

The utility model discloses further set up to: and the sliding block is embedded with a ball which is abutted against the inner wall of the sliding groove in a rolling manner.

Through adopting above-mentioned technical scheme, the ball can become the rolling friction of ball with the sliding friction that produces when slider and spout inner wall contact, and the resistance that the reducible slider received when sliding, and then makes the slip of backup pad more smooth.

To sum up, the utility model discloses a beneficial technological effect does:

1. the arrangement of the mounting block, the first mounting groove, the connecting block and the locking mechanism can select a pressing block with a proper radian according to the actual processing requirement, thereby being beneficial to improving the flexibility and the practicability of the device;

2. the arrangement of the sliding chute, the sliding block and the abutting component ensures that the two supporting plates can adapt to workpieces with different lengths, thereby further improving the practicability and flexibility of the device;

3. due to the arrangement of the guide surface, the operation steps are reduced, the locking of the connecting block is simpler, and the installation of the pressing block is smoother;

4. the inclined arrangement of the sliding chute can increase the sliding area of the supporting plates, so that the two supporting plates can adapt to more workpieces with length sizes,

5. the setting in scale groove, one can make the position adjustment of backup pad quick more and accurate, two can make the briquetting accurately be located between two backup pads, is favorable to improving the crooked quality of work piece.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic sectional view of the clamp block and the mounting block of the present invention.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Fig. 4 is a schematic view of the overall structure of the prior art.

In the figure, 1, a base; 2. a support bar; 3. an upper cross beam; 4. a lower cross beam; 5. a lifting mechanism; 51. a screw rod; 52. a gear; 53. a crawler belt; 54. a motor; 6. a jaw; 7. a clamp; 71. a clamping block; 72. a transverse groove; 73. pushing the plate; 74. a double-headed hydraulic cylinder; 8. a support plate; 9. mounting blocks; 10. a first mounting groove; 11. connecting blocks; 12. briquetting; 13. a second mounting groove; 14. a card slot; 15. a clamping block; 16. a spring; 17. a guide surface; 18. disassembling the assembly; 181. pulling a rope; 182. a pull ring; 19. pulling a hook; 20. a chute; 21. a slider; 22. a ball bearing; 23. a threaded hole; 24. a bolt; 25. a scale groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, the universal testing machine is a universal testing machine, and comprises a base 1 and four vertical support rods 2 fixedly connected to the upper surface of the base 1, wherein the four support rods 2 are parallel to each other and are arranged at intervals; the universal testing machine further comprises an upper cross beam 3 fixedly connected to the tops of the four support rods 2, a lower cross beam 4 located under the upper cross beam 3, a lifting mechanism 5 arranged on the base 1 and used for driving the lower cross beam 4 to move up and down, a jaw 6 arranged on the opposite surface of the upper cross beam 3 and the lower cross beam 4 and keeping right, and a clamp 7 arranged on the jaw 6 and used for clamping reinforcing steel bars, wherein the jaw 6 is in a U shape with a narrow opening and a wide bottom. The clamp 7 comprises a wedge-shaped clamping block 71 connected to two opposite side walls of the jaw 6 in a sliding mode, a transverse groove 72 which is formed in one surface, close to the bottom of the jaw 6, of the clamping block 71 and is T-shaped in cross section, a push plate 73 embedded in the transverse groove 72 in a sliding mode, and a double-head hydraulic cylinder 74 which is installed on the upper cross beam 3 and the lower cross beam 4 and is used for driving the push plate 73 to move up and down, wherein the double-head hydraulic cylinder 74 is connected with a hydraulic pump station through a connecting pipe. The operator places the upper and lower end of reinforcing bar respectively between two clamp splice 71 that correspond, and rethread double-end pneumatic cylinder 74 makes push pedal 73 move towards the direction of reinforcing bar, and under the combined action of cross slot 72, push pedal 73 and keeping silent 6, two relative clamp splice 71 just can be close to each other and press from both sides the tip of reinforcing bar, and the operator makes bottom end rail 4 move down through elevating system 5 at last, and the reinforcing bar has just begun mechanical properties to test.

Referring to fig. 1, the lifting mechanism 5 comprises two screw rods 51 rotatably connected to the base 1, and the two screw rods 51 both penetrate through the lower cross beam 4 upwards and are in threaded fit with the lower cross beam 4; the lifting mechanism 5 further comprises a gear 52 fixedly sleeved at the bottom of the screw rod 51, a crawler belt 53 rotatably sleeved in the base 1 and engaged with the two gears 52, and a motor 54 installed in the base 1 and used for driving one of the screw rods 51 to rotate, wherein the motor 54 is connected with a power supply through an electric wire. An operator drives one of the screw rods 51 to rotate through the motor 54, and under the linkage action of the gear 52 and the crawler belt 53, the two screw rods 51 synchronously and synchronously rotate in the same direction, so that the lower cross beam 4 in threaded fit with the screw rods 51 ascends and descends.

Referring to fig. 1 and 2, two support plates 8 with L-shaped cross sections are disposed on the upper surface of the base 1, and the two support plates 8 are symmetrical to each other and spaced apart from each other. The bottom of the lower cross beam 4 is fixedly connected with an installation block 9 with a round cross section, and the installation block 9 is positioned between the two support plates 8. The lower surface of installation piece 9 is seted up a cross section and is the same circular shape first mounting groove 10, and the axis of first mounting groove 10 coincides with the axis of installation piece 9. A connecting block 11 with a circular cross section is inserted into the first mounting groove 10, the outer wall of the connecting block 11 is tightly attached to the inner wall of the first mounting groove 10, and one end of the connecting block 11 extends downwards and is fixedly connected with a pressing block 12. When the workpiece needs to be bent and deformed, an operator flatly places the workpiece on the two supporting plates 8, then the lower cross beam 4 moves towards the test block through the lifting mechanism 5, the pressing block 12 abuts against the workpiece and applies pressure to the workpiece, the workpiece gradually bends and deforms, and finally the workpiece with the required radian is obtained.

Referring to fig. 2 and 3, four second mounting grooves 13 with rectangular cross sections are formed in the inner side wall of the first mounting groove 10, the four second mounting grooves 13 are distributed on the inner wall of the first mounting groove 10 at equal angular intervals, clamping grooves 14 with rectangular cross sections are formed in positions, corresponding to the second mounting grooves 13, of the connecting block 11, and after the connecting block 11 is completely inserted into the first mounting groove 10, the four clamping grooves 14 are opposite to the four second mounting grooves 13 one by one. A clamping block 15 in clamping fit with the clamping groove 14 is slidably connected in the second mounting groove 13, a spring 16 is fixedly connected between the clamping block 15 and the bottom of the second mounting groove 13, when the spring 16 is in a natural state, the spring 16 pushes the clamping block 15 into the clamping groove 14, and when the spring 16 is in a contracted state, the clamping block 15 is located in the second mounting groove 13. The end of the latch 15 away from the corresponding spring 16 is provided with a guide surface 17 which is in abutting fit with the edge of the connecting block 11. The mounting block 9 is further provided with a detaching assembly 18 for driving the latch 15 into the second mounting groove 13. After an operator selects a pressing block 12 with a proper radian according to actual processing requirements, the operator inserts a connecting block 11 on the pressing block 12 into the first mounting groove 10, and under the combined action of the connecting block 11 and the guide surface 17, the clamping block 15 compresses the spring 16 and automatically enters the corresponding second mounting groove 13, so that the connecting block 11 can be smoothly embedded into the first mounting groove 10. After the connecting block 11 is completely inserted into the first mounting groove 10, the four clamping grooves 14 are opposite to the four second mounting grooves 13 one by one, the spring 16 drives the clamping block 15 into the clamping groove 14, so that the position of the connecting block 11 is locked, and the pressing block 12 can be successfully mounted on the mounting block 9. When the pressing block 12 needs to be disassembled and replaced, an operator can detach the four clamping blocks 15 from the corresponding clamping grooves 14 in advance through the detaching assembly 18. The clamping groove 14, the second mounting groove 13, the clamping block 15, the spring 16 and the dismounting component 18 form a locking mechanism.

The disassembling component 18 comprises four pull ropes 181 which are connected to the mounting block 9 in a sliding manner, the positions of the four pull ropes 181 correspond to the positions of the four second mounting grooves 13 one by one, one end of each pull rope 181 extends into each second mounting groove 13 and is fixedly connected with the fixture block 15, and the other end of each pull rope 181 penetrates through the side wall of the mounting block 9; the detachment assembly 18 further includes a pull ring 182 fixedly attached to an end of the pull cord 181 extending out of the mounting block 9. An operator pulls the pull rope 181 to separate the fixture blocks 15 from the corresponding fixture grooves 14, and after the four fixture blocks 15 enter the corresponding second mounting grooves 13, the position locking relationship between the connecting block 11 and the mounting block 9 is cancelled, and the pressing block 12 can be detached from the mounting block 9. In order to enable the pressing block 12 to be detached smoothly and prevent the clamping block 15 from being embedded into the clamping groove 14 again under the action of the spring 16, a pulling hook 19 for hooking the pulling ring 182 is fixedly connected to the outer side wall of the mounting block 9.

Referring to fig. 1, a sliding groove 20 having an inverted T-shaped cross section is formed on the upper surface of the base 1, and the length direction of the sliding groove 20 is crossed with the width direction of the base 1. A sliding block 21 with the same inverted T-shaped cross section is embedded in the sliding groove 20 in a sliding mode, the top of the sliding block 21 is fixedly connected with the supporting plate 8, and a ball 22 abutted to the bottom of the sliding groove 20 is embedded in the bottom of the sliding block 21 in a rolling mode. The supporting plate 8 is provided with a threaded hole 23 communicated with the upper surface of the base 1, the threaded hole 23 is internally threaded with a bolt 24, and one end of the bolt 24 is abutted against the upper surface of the base 1. The operator can slide the support plates 8 to change the spacing between the two support plates 8, thereby enabling the two support plates 8 to better accommodate workpieces of different length dimensions. When the support plate 8 is slid to a proper position, the operator tightens the bolt 24 against the upper surface of the base 1, and the position of the support plate 8 relative to the base 1 is locked. In order to enable an operator to adjust the distance between the two support plates 8 more quickly and accurately, the upper surface of the base 1 is provided with a scale groove 25 for displaying the sliding position of the support plates 8. The threaded hole 23 and the bolt 24 constitute a holding assembly.

The implementation principle of the embodiment is as follows: after an operator selects a pressing block 12 with a proper radian according to actual processing requirements, the operator inserts a connecting block 11 on the pressing block 12 into the first mounting groove 10, and under the combined action of the connecting block 11 and the guide surface 17, the clamping block 15 compresses the spring 16 and automatically enters the corresponding second mounting groove 13, so that the connecting block 11 can be smoothly embedded into the first mounting groove 10. After the connecting block 11 is completely inserted into the first mounting groove 10, the four clamping grooves 14 are opposite to the four second mounting grooves 13 one by one, the spring 16 drives the clamping block 15 into the clamping groove 14, so that the position of the connecting block 11 is locked, and the pressing block 12 can be successfully mounted on the mounting block 9. An operator pulls the pull rope 181 to separate the fixture blocks 15 from the corresponding fixture grooves 14, and after the four fixture blocks 15 enter the corresponding second mounting grooves 13, the position locking relationship between the connecting block 11 and the mounting block 9 is cancelled, and the pressing block 12 can be detached from the mounting block 9. In addition, the operator can slide the support plate 8 to change the distance between the two support plates 8, so that the two support plates 8 can better adapt to workpieces with different length sizes. When the support plate 8 is slid to a proper position, the operator tightens the bolt 24 against the upper surface of the base 1, and the position of the support plate 8 relative to the base 1 is locked.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a universal tester, including base (1), bracing piece (2) of setting on base (1), set up entablature (3) at bracing piece (2) top, bottom end rail (4) of setting in entablature (3) below, install anchor clamps (7) on entablature (3) and bottom end rail (4) opposite face, set up two backup pads (8) that are used for placing the work piece at base (1) upper surface, set up briquetting (12) that are used for carrying out the bending to the work piece in bottom end rail (4) bottom, and be used for driving elevating system (5) that bottom end rail (4) take place the removal from top to bottom, its characterized in that: the bottom of the lower cross beam (4) is fixedly connected with an installation block (9), a first installation groove (10) is formed in one surface, facing the support plate (8), of the installation block (9), a connection block (11) in clamping fit with the first installation groove (10) is fixedly connected to the pressing block (12), and a locking mechanism for clamping and positioning the connection block (11) is arranged on the installation block (9); the upper surface of the base (1) is provided with a sliding chute (20), the supporting plate (8) is fixedly connected with a sliding block (21), and the sliding block (21) is embedded in the sliding chute (20) in a sliding manner; the supporting plate (8) is also provided with a propping assembly which props against and positions the supporting plate on the base (1).

2. The universal tester of claim 1, wherein: locking mechanical system is including offering second mounting groove (13) on first mounting groove (10) inside wall, offer on connecting block (11) and just to draw-in groove (14) of second mounting groove (13) at the in-process that connecting block (11) inserted first mounting groove (10), fixture block (15) of sliding connection in second mounting groove (13), spring (16) that the setting is used for driving fixture block (15) embedding draw-in groove (14) in second mounting groove (13), and setting is used for driving dismantling subassembly (18) that fixture block (15) break away from draw-in groove (14) on installation piece (9).

3. The universal tester of claim 2, wherein: the disassembling component (18) comprises a pull rope (181) which is connected to the mounting block (9) in a sliding mode and used for pulling the clamping block (15) to be separated from the clamping groove (14), a pull ring (182) which is fixedly connected to one end, far away from the clamping block (15), of the pull rope (181), and a drag hook (19) which is arranged on the outer side wall of the mounting block (9) and used for hooking the pull ring (182).

4. The universal tester of claim 2, wherein: one end of the clamping block (15) far away from the spring (16) is provided with a guide surface (17) in butt fit with the connecting block (11), and when the guide surface (17) is in butt fit with the connecting block (11), the clamping block (15) retracts into the second mounting groove (13).

5. The universal tester of claim 1, wherein: the abutting component comprises a threaded hole (23) which is formed in the supporting plate (8) and communicated with the upper surface of the base (1) and a bolt (24) which is in threaded connection with the threaded hole (23), and one end of the bolt (24) abuts against the upper surface of the base (1).

6. The universal tester of claim 1, wherein: the upper surface of the base (1) is provided with a scale groove (25) for displaying the sliding position of the support plate (8).

7. The universal tester of claim 1, wherein: the length direction of the sliding chute (20) and the width direction of the base (1) are arranged in a crossed mode.

8. The universal tester of claim 1, wherein: and the sliding block (21) is provided with a rolling ball (22) which is abutted against the inner wall of the sliding groove (20) in a rolling and embedding way.