CN219265906U

CN219265906U - Universal testing machine device with automatically replaceable clamp

Info

Publication number: CN219265906U
Application number: CN202223374818.9U
Authority: CN
Inventors: 唐迪; 丁成海; 陈涛; 马赛; 陈军; 赵忠潮
Original assignee: Shandong Mechanical Engineering Testing Co
Current assignee: Shandong Mechanical Engineering Testing Co
Priority date: 2022-12-15
Filing date: 2022-12-15
Publication date: 2023-06-27
Anticipated expiration: 2032-12-15

Abstract

The utility model discloses a universal testing machine device with an automatically replaceable clamp, which comprises a base, a lower clamp device, an upper clamp fixing device, a support column, a hydraulic rod, a hydraulic cylinder, a sprue, a power interface and an upper support seat, wherein the base and the upper support seat are supported by the support column, the upper support seat is provided with the hydraulic cylinder, and the upper clamp fixing device is arranged between the upper support seat and the base and connected by the hydraulic rod; the upper clamp device is fixed on the upper clamp fixing device; the lower fixture device is fixed on the base and comprises a rotating disc, a fixture fixing device, a jacking device and a fixture, wherein the rotating disc is of a hollow circular structure in the middle, and three track grooves are formed in the periphery of the rotating disc at intervals of 120 degrees; the fixture fixing device consists of two semi-cylinders which are arranged at the middle hollow position of the rotating disc, one side of each semi-cylinder is provided with a fixing device track groove, and the center position of each semi-cylinder is provided with a jacking track groove. The utility model has convenient operation and high efficiency, can reduce labor intensity and personnel injury.

Description

Universal testing machine device with automatically replaceable clamp

Technical Field

The utility model relates to a universal testing machine device with an automatically replaceable clamp, and belongs to the technical field of metal material mechanics detection.

Background

With the rapid development of the current building industry, matched detection equipment is gradually updated, and various detection instrument equipment is developed towards the direction of intelligence, automation and diversification. The universal testing machine is the most commonly used equipment for detecting and testing building metal materials, one universal testing machine can carry out tensile testing of reinforcing steel bars with various specifications, and when reinforcing steel bars with different specifications and sizes are subjected to tensile testing, clamps with different specifications are usually required to be replaced for fixing, so that the installation and the use of the clamps of the universal testing machine are more and more emphasized. When the universal testing machine is used for detecting the stretching of the reinforcing steel bars, the conventionally used clamps have three specifications, and can meet the stretching detection of the reinforcing steel bars with the diameters within the range of 6-40mm in the current construction industry. In the prior art, before a detection test starts, a detector selects a corresponding clamp according to the specification of a steel bar test sample, and the installation clamp is manually replaced to reach the preparation condition of steel bar stretching detection, so that detection work is carried out. The single-mode replacement mode is low in efficiency, long in time consumption and low in safety, due to the fact that the weight of the clamp is large, edges and corners are sharp, hand crush injuries of detection personnel can be caused frequently, in addition, the clamp jaw manually replaced is required to be maintained frequently, the economy is unreasonable for a long time, and the labor cost and the time cost of detection can be increased.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides the universal testing machine device with the automatically replaceable clamp, which can solve the problems of low efficiency, time consumption, unreasonable economy and the like in the manual replacement process of the traditional clamp.

In order to solve the technical problem, the utility model provides a universal testing machine device with automatically replaceable clamps, which comprises a base, a lower clamp device, an upper clamp fixing device, support columns, a hydraulic rod, hydraulic cylinders, a sprue, a power interface and an upper support seat, wherein the base and the upper support seat are supported by the four support columns, the upper support seat is provided with the hydraulic cylinders, and the upper clamp fixing device is arranged between the upper support seat and the base and is connected by the hydraulic rods; the upper clamp device is fixed on the upper clamp fixing device, and the hydraulic cylinder can drive the upper clamp device to move up and down through the hydraulic rod; the lower clamp device is fixed on the base and comprises a rotating disc, a clamp fixing device, a jacking device, a flat-mouth clamp, a small-diameter clamp and a large-diameter clamp, wherein the rotating disc is of a hollow-out circular structure in the middle, and three track grooves with the same size are formed in the periphery of the rotating disc at intervals of 120 degrees; the fixture fixing device consists of two semi-cylinders and is arranged at a hollowed-out position in the middle of the rotating disc, one side of each semi-cylinder is provided with a fixing device track groove corresponding to the track groove, and the center of each semi-cylinder is provided with a jacking track groove; the jacking device comprises a hydraulic jack, a jacking device clamping groove, a jacking device inclined plane, a jacking clamp sliding block and a transverse sliding groove; the flat-mouth clamp, the small-diameter clamp or the large-diameter clamp slides to the clamping groove of the jacking device through the track groove of the fixing device and stretches out of the lower clamp device under the action of the hydraulic jack to clamp the steel bar to be tested.

The rotating disc is driven by hydraulic pressure to rotate.

The fixture fixing device comprises a fixing device track groove which is convenient for the fixture to get in and out and a jacking track groove which is arranged on an inclined plane, the fixture is convenient for the fixture to move up and down through the jacking device, and the two fixture fixing devices are in a group during use.

The side surface of the upper part of the jacking device is designed into a slope of the jacking device, the transverse sliding groove is a concave groove, the jacking clamp sliding block is a T-shaped boss, and the jacking clamp sliding block slides in the transverse sliding groove.

The back of the flat-mouth clamp is provided with a conical block, the inner surface of the flat-mouth clamp is provided with a prismatic flat-mouth clamp surface, and the two flat-mouth clamp surfaces are used relatively.

The back of the small-diameter clamp is provided with a conical block identical to the back of the flat-mouth clamp, the inner surface of the small-diameter clamp is provided with a small-size grooved small-diameter clamp surface, and the two small-diameter clamp surfaces are used relatively.

The back of the large-diameter clamp is provided with a conical block identical to the back of the flat-mouth clamp, the inner surface of the large-diameter clamp is provided with a large-size grooved large-diameter clamp surface, and the two large-diameter clamp surfaces are used relatively.

The upper clamp device and the lower clamp device are vertically symmetrically distributed, and the structure of the upper clamp device is the same as that of the lower clamp device.

The beneficial effects are that: according to the utility model, three different clamps are uniformly arranged on the same rotating disc, the different clamps can be rapidly switched and used through hydraulic driving rotation, the operation is convenient, the efficiency is high, the full-automatic detection of the stretching of the steel bar is realized through the free rotation of the program control clamps, the manual labor intensity can be reduced, the personnel injury is reduced, the operation safety is improved, the detection efficiency and the detection process stability are improved, the automatic operation and detection are realized, the detection period is shortened, and the maintenance cost is reduced. The utility model has reasonable structural design and convenient operation, is applicable to the tensile detection of the steel bars with different diameters in the diameter range of 6-40mm, and does not need manual back and forth disassembly and installation of the clamp. According to the utility model, through hydraulic program control, the clamp rotating disc device is hydraulically driven, so that the automatic switching of the clamp can be realized, the detection efficiency is improved, the detection period is greatly shortened, and the detection result is fed back timely.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an exploded view of the lower fixture assembly of the present utility model;

FIG. 3 is a schematic view of an assembled section of the lower clamp device of the present utility model;

FIG. 4 is a schematic view of the structure of the upper clamp device of the present utility model;

FIG. 5 is a schematic view of the structure of the flat-nose clamp of the present utility model;

FIG. 6 is a schematic view of the small diameter clamp of the present utility model;

FIG. 7 is a schematic view of the large diameter clamp of the present utility model;

FIG. 8 is a schematic view of a rotating disc according to the present utility model;

FIG. 9 is a schematic illustration of the clamp fixture of the present utility model;

fig. 10 is an exploded view of the jacking device of the present utility model.

In the figure: 1. a base; 2. a lower clamp device; 3. a clamp device is arranged; 4. an upper clamp fixing device; 5. a support column; 6. a hydraulic rod; 7. a hydraulic cylinder; 8. a sprue; 9. a power interface; 10. an upper support base; 201. a flat-mouth clamp; 202. a small diameter clamp; 203. a large diameter clamp; 204. a rotating disc; 205. a clamp fixing device; 206. a jacking device; 2011. a flat-mouth clamp surface; 2012. a flat-mouth clamp conical block; 2021. a small diameter clamp face; 2031. a large diameter clamp face; 2041. a rotating disc track groove; 2051. a fixture rail groove; 2052. jacking the track groove; 2061. a hydraulic ram; 2062. a jacking device clamping groove; 2063. a jacking device inclined plane; 2064. jacking a clamp slide block; 2065. a transverse sliding groove.

Detailed Description

The present utility model will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1 to 10, the utility model provides a universal testing machine device with automatically replaceable clamps, which comprises a base 1, a lower clamp device 2, an upper clamp device 3, an upper clamp fixing device 4, support columns 5, a hydraulic rod 6, a hydraulic cylinder 7, a sprue 8, a power interface 9 and an upper support seat 10, wherein the base 1 and the upper support seat 10 are supported by the four support columns 5, the hydraulic cylinder 7 is arranged on the upper support seat 10, and the upper clamp fixing device 4 is arranged between the upper support seat 10 and the base 1 and is connected by the hydraulic rod 6; the upper clamp device 3 is fixed on the upper clamp fixing device 4, and the hydraulic cylinder 7 can drive the upper clamp device 3 to move up and down through the hydraulic rod 6; the lower clamp device 2 is fixed on the base 1 and comprises a rotating disc 204, a clamp fixing device 205, a jacking device 206, a flat-mouth clamp 201, a small-diameter clamp 202 and a large-diameter clamp 203, wherein the rotating disc 204 is of a hollow circular structure in the middle, and three track grooves 2041 with the same size are arranged at the positions spaced by 120 degrees in the periphery; the fixture fixing device 205 is composed of two semi-cylinders, and is arranged at a hollowed-out position in the middle of the rotating disc 204, one side of each semi-cylinder is provided with a fixing device track groove 2051 corresponding to the track groove 2041, and the center of each semi-cylinder is provided with a jacking track groove 2052; the jacking device 206 comprises a hydraulic jack 2061, a jacking device clamping groove 2062, a jacking device inclined surface 2063, a jacking clamp slider 2064 and a transverse sliding groove 2065; the flat-mouth clamp 201, the small-diameter clamp 202 or the large-diameter clamp 203 slides to the jacking device clamping groove 2062 through the rail groove 2041 and the fixing device rail groove 2051, and stretches out of the lower clamp device 2 under the action of the hydraulic ram 2061 to clamp the steel bar to be tested.

During detection, a control program is connected through a power interface 9, hydraulic oil is injected into a hydraulic cylinder 7 through a sprue 8, an upper clamp device 3 and a lower clamp device 2 synchronously and cooperatively work through a hydraulic system, and the upper end and the lower end of a steel bar to be detected and stretched are respectively fixed through the upper clamp device 3 and the lower clamp device 2; when in test: according to the size of the steel bars, the clamp rotating disc 204 is hydraulically driven to select a proper flat-mouth clamp 201, a small-diameter clamp 202 or a large-diameter clamp 203, the selected proper clamp is rotated to an opening position of the clamp fixing device 205, the selected proper clamp slides into the jacking device clamping groove 2062 of the jacking device 206 through the turntable track groove 2041 by the hydraulic device, the jacking device 206 is jacked up through the hydraulic jack 2061, the jacking device inclined plane 2063 slides in the jacking track groove 2052 of the clamp fixing device 205, the flat-mouth clamp 201 is fixed in the jacking device clamping groove 2062, the jacking clamp sliding block 2064 slides in the transverse sliding groove 2065 in the jacking process of the hydraulic jack 2061, and the jacking device inclined plane 2063 is connected with the flat-mouth clamp 201 to be close to the middle along with the lifting of the hydraulic jack 2061, so that the clamp tightening function is realized and the steel bars are clamped; similarly, the upper clamp device 3 can also realize the function, the upper end of the steel bar is fixed, after the two ends of the steel bar are clamped and fixed, the hydraulic rod 6 drives the upper clamp fixing device 4 and the upper clamp device 3 to integrally move upwards until the steel bar is stretched and broken, so as to obtain relevant data of a detection test, and the detection data is input through a computer control program, so that the whole detection process is completed; after the detection is finished, the steel bars can be loosened in the reverse order, the flat-mouth clamp 201 is automatically retracted onto the rotating disc 204, and the use of the clamp with the next specification can be switched.

The rotating disc 204 is driven by hydraulic pressure to realize rotation, and the automatic switching use of different clamps can be realized by driving the rotating disc 204 by hydraulic pressure.

The fixture fixing device 205 comprises a fixing device track groove 2051 for facilitating the fixture to enter and exit, and a jacking track groove 2052 which is arranged in an inclined plane, and the jacking device 206 is convenient for the fixture to move up and down, so that two fixture fixing devices 205 are in a group during use.

The jacking device 206 comprises a hydraulic jack 2061, a jacking device clamping groove 2062, a jacking device inclined plane 2063, a jacking clamp sliding block 2064 and a transverse sliding groove 2065, wherein the hydraulic jack 2061 is jacked by hydraulic pressure to realize up-and-down motion; the jacking device clamping groove 2062 is used for fixing a clamp, the upper side surface of the jacking device 206 is designed into a jacking device inclined plane 2063, the transverse sliding groove 2065 is a concave groove, the jacking clamp sliding block 2064 is a T-shaped boss, the jacking clamp sliding block 2064 slides in the transverse sliding groove 2065, and the clamp can clamp the steel bar to be detected by the upward movement of the hydraulic jack 2061.

The back of the flat-mouth clamp 201 is provided with a conical block 2012, the inner surface is provided with a flat-mouth clamp surface 2011 in the shape of a corner, the friction force of the steel bar during clamping is increased, the steel bar is prevented from falling off in the stretching process, and the two flat-mouth clamp surfaces 2011 are used relatively in a group.

The back of the small-diameter clamp 202 is provided with a conical block which is the same as that of the flat-mouth clamp 201, the inner surface of the small-diameter clamp 202 is provided with a small-size slotted small-diameter clamp surface 2021, and the two small-diameter clamp surfaces 2021 are used relatively.

The back of the large-diameter clamp 203 is provided with a conical block which is the same as that of the flat-mouth clamp 201, the inner surface of the large-diameter clamp 203 is provided with a large-size slotted large-diameter clamp surface 2031, and the two large-diameter clamp surfaces 2031 are used relatively.

The upper clamp device 3 and the lower clamp device 2 are vertically symmetrically distributed, and the structure of the upper clamp device is the same as that of the lower clamp device 2.

According to the utility model, three different clamps are uniformly arranged on the same rotating disc, the different clamps can be rapidly switched and used through hydraulic driving rotation, the operation is convenient, the efficiency is high, the full-automatic detection of the stretching of the steel bar is realized through the free rotation of the program control clamps, the manual labor intensity can be reduced, the personnel injury is reduced, the operation safety is improved, the detection efficiency and the detection process stability are improved, the automatic operation and detection are realized, the detection period is shortened, and the maintenance cost is reduced. The utility model has reasonable structural design and convenient operation, is applicable to the tensile detection of the steel bars with different diameters in the diameter range of 6-40mm, and does not need manual back and forth disassembly and installation of the clamp. The device of this patent design is through hydraulic pressure program control, and hydraulic drive anchor clamps rolling disc device can realize the automatic switch-over of anchor clamps, has promoted detection efficiency, and detection cycle shortens by a wide margin, and the testing result feedback is in time.

The above-described embodiments of the utility model are intended to be examples only, and not to be limiting, and all changes that come within the scope of the utility model or equivalents thereto are intended to be embraced thereby.

Claims

1. The utility model provides a but anchor clamps automatic replacement's universal testing machine device which characterized in that: the device comprises a base (1), a lower clamp device (2), an upper clamp device (3), an upper clamp fixing device (4), support columns (5), a hydraulic rod (6), a hydraulic cylinder (7), a sprue (8), a power interface (9) and an upper support seat (10), wherein the base (1) and the upper support seat (10) are supported by the four support columns (5), the upper support seat (10) is provided with the hydraulic cylinder (7), and the upper clamp fixing device (4) is arranged between the upper support seat (10) and the base (1) and connected by the hydraulic rod (6); the upper clamp device (3) is fixed on the upper clamp fixing device (4), and the hydraulic cylinder (7) can drive the upper clamp device (3) to move up and down through the hydraulic rod (6); the lower clamp device (2) is fixed on the base (1) and comprises a rotating disc (204), a clamp fixing device (205), a jacking device (206), a flat-mouth clamp (201), a small-diameter clamp (202) and a large-diameter clamp (203), wherein the rotating disc (204) is of a hollow circular structure in the middle, and three rotating disc track grooves (2041) with the same size are formed in the positions of the periphery of the rotating disc at intervals of 120 degrees; the fixture fixing device (205) consists of two semi-cylinders and is arranged at a hollowed-out position in the middle of the rotating disc (204), one side of each semi-cylinder is provided with a fixing device track groove (2051) corresponding to the rotating disc track groove (2041), and the center of each semi-cylinder is provided with a jacking track groove (2052); the jacking device (206) comprises a hydraulic jack (2061), a jacking device clamping groove (2062), a jacking device inclined plane (2063), a jacking clamp sliding block (2064) and a transverse sliding groove (2065); the flat-mouth clamp (201), the small-diameter clamp (202) or the large-diameter clamp (203) slides to the jacking device clamping groove (2062) through the rail groove (2041) and the fixing device rail groove (2051), and stretches out of the lower clamp device (2) under the action of the hydraulic ram (2061) to clamp the steel bar to be tested.

2. The fixture automatically replaceable universal testing machine device of claim 1, wherein: the rotating disc (204) is driven to rotate by hydraulic pressure.

3. The fixture automatically replaceable universal testing machine device of claim 1, wherein: the fixture fixing device (205) comprises a fixing device track groove (2051) which is convenient for the fixture to enter and exit, a jacking track groove (2052) which is arranged in an inclined plane, and the jacking device (206) is convenient for the fixture to move up and down, and when in use, the two fixture fixing devices (205) are in a group.

4. The fixture automatically replaceable universal testing machine device of claim 1, wherein: the upper side surface of the jacking device (206) is designed into a jacking device inclined plane (2063), the transverse sliding groove (2065) is a concave groove, the jacking clamp sliding block (2064) is a T-shaped boss, and the jacking clamp sliding block (2064) slides in the transverse sliding groove (2065).

5. The fixture automatically replaceable universal testing machine device of claim 1, wherein: the back of the flat-mouth clamp (201) is provided with a flat-mouth clamp conical block (2012), the inner surface of the flat-mouth clamp is provided with a flat-mouth clamp surface (2011) in a prismatic shape, and the two flat-mouth clamp surfaces (2011) are used relatively.

6. The fixture automatically replaceable universal testing machine device of claim 1, wherein: the back of the small-diameter clamp (202) is provided with a conical block which is the same as that of the flat-mouth clamp (201), the inner surface of the small-diameter clamp is provided with a small-size grooved small-diameter clamp surface (2021), and the two small-diameter clamp surfaces (2021) are used relatively.

7. The fixture automatically replaceable universal testing machine device of claim 1, wherein: the back of the large-diameter clamp (203) is provided with a conical block which is the same as the back of the flat-mouth clamp (201), the inner surface of the large-diameter clamp is provided with a large-size slotted large-diameter clamp surface (2031), and the two large-diameter clamp surfaces (2031) are used relatively.

8. The fixture automatically replaceable universal testing machine device of any one of claims 1-7, wherein: the upper clamp device (3) and the lower clamp device (2) are distributed symmetrically up and down, and the structure of the upper clamp device is the same as that of the lower clamp device (2).