CN111687874A - Be applied to anchor clamps structure that concrete test block snatched - Google Patents
Be applied to anchor clamps structure that concrete test block snatched Download PDFInfo
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- CN111687874A CN111687874A CN202010688167.7A CN202010688167A CN111687874A CN 111687874 A CN111687874 A CN 111687874A CN 202010688167 A CN202010688167 A CN 202010688167A CN 111687874 A CN111687874 A CN 111687874A
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- clamp
- vertical plate
- clamping
- seat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/0023—Gripper surfaces directly activated by a fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J15/00—Gripping heads and other end effectors
- B25J15/08—Gripping heads and other end effectors having finger members
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- Robotics (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a clamp structure applied to grabbing a concrete test block. The fixture comprises a connecting disc which can be connected with a feeding host, wherein a fixture seat is arranged at the lower part of the connecting disc, a left fixture, a right fixture and a fixture adjusting mechanism are arranged on the fixture seat, the left fixture and the right fixture can slide left and right on the fixture seat, and the fixture adjusting mechanism can drive the left fixture and the right fixture to move in opposite directions or in opposite directions so as to meet the requirements of clamping test blocks with different specifications; the clamping arms of the left clamp and the right clamp have large clamping force, the lever principle is fully utilized, the clamping seat can automatically adjust the angle of the clamping position, the test block can be clamped at the best stress point, the clamping plate adopts wear-resistant rubber blocks, the test block is not easy to fall off, 3 test blocks can be grabbed at one time, and the efficiency is high; a compression spring is arranged between the clamping arm and the movable support, so that the test block is prevented from falling off under the conditions of power failure, gas failure and pipe explosion of a gas pipe, and the safety is good; the clamping arm is driven by the air cylinder, so that the speed is high and the efficiency is high; and the PLC is adopted for control, so that the automation degree is high.
Description
Technical Field
The invention relates to a clamp for a testing machine, in particular to a clamp structure for quickly and automatically grabbing a concrete test block in the detection process of a full-automatic concrete pressure test.
Background
Concrete compressive strength detection is one of the most conventional detection projects in engineering projects, and has great requirements in actual detection. Most of concrete compressive strength detection in the past has higher degree of dependence on manpower, and each link such as sample information input, sample storage and transportation, sample strength test, cleaning after detection, data acquisition and comprehensive processing in the concrete compressive strength detection process all needs manual operation, and the labor intensity is big and unsafe, wastes time and energy, and the detection efficiency is lower.
Along with the development of full-automatic concrete pressure test equipment, need quick material loading in the testing process, snatch the concrete test block fast automatically to improve press testing machine's work efficiency. The existing mechanical automatic conveying and feeding devices are mechanical and pneumatic. The mechanical type mostly adopts a screw to drive the clamping part to realize clamping and opening, and the structure has limited clamping force, low speed and easy falling; the pneumatic structure is that the test block is sucked by the negative pressure of the sucking disc, and the using effect of the structure is easily influenced by the air pressure, the smooth condition of the air hole of the sucking disc, and the surface smoothness and the flatness of the test block at the sucking position; and a screw type or sucking disc type structure snatchs a test block at one time, and is limited to the effect of improving the test efficiency of press.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the clamp structure which is simple in structure, low in cost, capable of greatly reducing the labor intensity, avoiding manual misoperation and improving the detection efficiency and is applied to the grabbing of the concrete test block.
The technical scheme adopted by the invention for realizing the purpose is as follows:
the utility model provides a be applied to anchor clamps structure that concrete test block snatched, includes the connection pad that can be connected with the pay-off host computer, its characterized in that: the lower part of the connecting disc is provided with a clamp seat, the clamp seat is provided with a left clamp, a right clamp and a clamp adjusting mechanism, the left clamp and the right clamp can slide left and right on the clamp seat, and the clamp adjusting mechanism can drive the left clamp and the right clamp to move oppositely or backwards.
By adopting the technical scheme, the distance between the left clamp and the right clamp can be adjusted, and the requirements for clamping test blocks with different specifications are met.
In the above-mentioned clamp structure applied to concrete test block grabbing, the clamp base includes a front vertical plate and a rear vertical plate, the upper ends of the front vertical plate and the rear vertical plate are connected with the connecting disc, and the lower ends of the front vertical plate and the rear vertical plate are provided with horizontal long grooves; the left clamp include:
the movable support is positioned between the front vertical plate and the rear vertical plate and comprises a front vertical plate and a rear vertical plate, and a sliding block is arranged on the right side of the lower part of the front side surface of the front vertical plate and the right side of the rear side surface of the rear vertical plate and can slide in the long groove; the lower part between the front vertical plate and the rear vertical plate is connected with a nut, the right sides of the upper parts of the front vertical plate and the rear vertical plate are provided with first pin shafts, the left sides of the lower parts of the front vertical plate and the rear vertical plate are provided with second pin shafts, and two ends of each second pin shaft penetrate through elongated slots on the front vertical plate and the rear vertical plate and extend out of the front vertical plate and the rear vertical plate;
the clamping arm comprises a front clamping plate and a rear clamping plate, the middle part of the front clamping plate is hinged to the front end of the second pin shaft, and the middle part of the rear clamping plate is hinged to the rear end of the second pin shaft; the upper parts of the front clamping plate and the rear clamping plate are provided with third pin shafts, and the lower parts of the front clamping plate and the rear clamping plate are provided with fourth pin shafts;
the rod end of the cylinder is hinged to the third pin shaft, the tail end of the cylinder is connected to the cylinder seat, and the cylinder seat is hinged to the first pin shaft;
the left end of the clamping seat is hinged to the fourth pin shaft, and the right end of the clamping seat is provided with a clamping plate;
the left clamp and the right clamp are identical in structure and are symmetrically arranged left and right, and the screwing directions of the nut threads on the left clamp and the nut threads on the right clamp are opposite.
By adopting the technical scheme, the middle part of the clamping arm is hinged on the movable support, the lower part of the clamping arm is connected with the clamping seat and the clamping plate, and the clamping arm is driven to swing by the air cylinder hinged at the upper part, so that the lever principle is fully utilized, the clamping force is large, and the test block is not easy to fall off; the clamping arm is driven by the air cylinder, so that the speed and the efficiency are high. The clamping seat is hinged to the lower end of the clamping arm, and when clamping action is achieved, the angle of the clamping position can be automatically adjusted by the clamping seat, so that the test block can be clamped at the best stress point.
In the above-mentioned clamp structure for grabbing concrete test blocks, the clamp adjusting mechanism comprises,
a speed reducing motor connected to the motor base, a driving belt wheel on the output shaft, a bearing seat connected to the motor base,
a bearing seat which is positioned at the lower part between the front vertical plate and the rear vertical plate and is connected with the front vertical plate and the rear vertical plate,
an adjusting screw rod, the middle of which is rotationally connected to the bearing seat through a bearing, two ends of which are provided with external threads with opposite rotation directions and are meshed with the nut on the movable support,
and the driven belt wheel is arranged on the adjusting screw rod and is connected with the driving belt wheel through a synchronous belt.
By adopting the technical scheme, the adjusting screw rod of the clamp adjusting mechanism is a screw rod with opposite rotation directions at two ends, the adjusting screw rod is driven by the speed reducing motor, and the adjusting screw rod drives the left clamp and the right clamp to move oppositely or back to back, namely to be close to or far away from each other, so that the requirements of clamping test blocks with different specifications are met; meanwhile, the self-locking performance of the screw rod is utilized, and the distance between the left clamp and the right clamp cannot be changed after being adjusted.
In the above-mentioned anchor clamps structure of being applied to concrete test block and snatching, the preceding grip block of centre gripping arm and the lower part that lies in the third round pin axle on the grip block still are equipped with the fifth round pin axle, the preceding riser of removal support and the lower part that lies in the cylinder on the riser are equipped with the sixth round pin axle, are equipped with first spring holder on the fifth round pin axle, are equipped with the second spring holder on the sixth round pin axle, are equipped with compression spring between first spring holder and the second spring holder.
Through adopting above-mentioned technical scheme, set up compression spring between centre gripping arm and removal support, under the circumstances of outage, gas-off, trachea burst, guarantee that the test block can not drop.
In the above-mentioned anchor clamps structure of being applied to concrete test block and snatching, the grip block is wear-resisting rubber piece.
Through adopting above-mentioned technical scheme, the grip block adopts the wear-resisting rubber piece of hardness 90 degrees to make, has both guaranteed the rigidity needs when centre gripping test block, has increaseed the frictional resistance with the test block contact surface again, prevents that the test block from gliding, droing.
In the above-mentioned anchor clamps structure that is applied to concrete test block and snatchs, the lower terminal surface of preceding riser and back riser is equipped with diffuse reflection sensor, and diffuse reflection sensor links to each other with control system.
By adopting the technical scheme, the test block positioning device is used for detecting the position of the test block below the clamp, transmitting a signal to the control system, and judging whether the grabbing can be implemented by the control system.
In foretell anchor clamps structure for concrete test block snatchs, all install the magnetic sensor who detects cylinder piston rod displacement on the cylinder body of left anchor clamps, right anchor clamps, two magnetic sensor are installed to every cylinder, are located the both ends of cylinder body respectively, and magnetic sensor links to each other with control system.
By adopting the technical scheme, the two cylinders can be guaranteed to move in place and then the control system PLC issues actions of grabbing and releasing the test block, and the situation that the test block is grabbed in the air or falls off is avoided.
In the clamp structure applied to the grabbing of the concrete test block, the switch bracket is arranged on one side of the clamp seat and one side of the right clamp, two photoelectric switches for detecting the positions of the clamping arms are arranged on the switch bracket, and the photoelectric switches are connected with the control system; and a stop block used for triggering the photoelectric switch is arranged above the front vertical plate of the right clamp movable support.
By adopting the technical scheme, the photoelectric switch arranged on the clamp seat can accurately detect the distance between the two clamping arms, and then the control system gives an instruction to the synchronous speed reducing motor to automatically adjust the distance between the clamping arms in time so as to adapt to the size of the test block.
In the above-mentioned anchor clamps structure of being applied to concrete test block and snatching, the cylinder pass through pipeline, solenoid valve and air supply and link to each other, the solenoid valve links to each other with control system.
Furthermore, the electromagnetic valve is a two-position three-way valve and is provided with an air inlet and two air outlets, the air inlet is connected with an air source, the air outlets are connected with the air cylinder, each air outlet is divided into two pipelines which are respectively connected to the air inlets of the cavities on the same side of the air cylinder of the left clamp and the air cylinder of the right clamp, and air pressure alarms are connected in the two pipelines.
By adopting the technical scheme, the two cylinders can be ensured to act synchronously.
Through adopting above-mentioned technical scheme, when air supply pressure is not enough, the atmospheric pressure alarm can warn the air supply system pressure not enough firstly, and secondly no longer supplies the air for the cylinder for anchor clamps can not implement and snatch the action, guarantee safe in utilization.
Compared with the prior art, the invention has the following advantages and positive effects:
1. the distance between the left clamp and the right clamp can be adjusted, the requirement of clamping test blocks with different specifications is met, and the adaptability is strong;
2. the lever principle is fully utilized, the clamping force of the clamping arms is large, the clamping seat can automatically adjust the angle of the clamping position, the test block can be clamped at the best stress point, the clamping plate adopts wear-resistant rubber blocks, the test block is not easy to fall off, 3 test blocks can be grabbed at one time, and the efficiency is high;
3. a compression spring is arranged between the clamping arm and the movable support, so that the test block is prevented from falling off under the conditions of power failure, gas failure and pipe explosion of a gas pipe, and the safety is good;
4. the clamping arm is driven by the air cylinder, so that the speed is high and the efficiency is high;
5. and the PLC is adopted for control, so that the automation degree is high.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic view of the present invention (with the front riser removed).
FIG. 3 is a schematic view of the connection between the jig base and the connection pad according to the present invention.
FIG. 4 is a schematic view of the connection between the fixture adjusting mechanism and the fixture seat according to the present invention.
Fig. 5 is a schematic view of the movable support in the present invention.
FIG. 6 is a schematic view of the connection between the movable support and the clamp adjusting mechanism according to the present invention.
FIG. 7 is a schematic view showing the connection of the movable support, the clamp adjusting mechanism and the clamp base according to the present invention.
Fig. 8 is a schematic view of the connection between the cylinder and the movable support in the present invention.
Fig. 9 is a schematic view of the connection of the air cylinder, the compression spring and the movable support in the present invention.
FIG. 10 is a schematic view showing the connection of the air cylinder, compression spring, holder, movable support and holding arm (with front holding plate removed) in the present invention.
In the figure: 1, connecting the disc to the base plate,
2, a clamp seat is arranged on the clamp seat,
21 front vertical plate, 211 long groove, 212 diffuse reflection sensor,
22 of the rear vertical plate, 22 of the frame,
23, an upper flat plate is arranged on the lower plate,
the positioning posts 24 are positioned on the outer surface of the casing,
25 the switch bracket is arranged on the switch bracket,
26 photoelectric switch
3, a left clamp and a right clamp are arranged,
31 moving support, 311 front riser, 312 rear riser, 313 slider, 314 nut, 315 first pin, 316 second pin, 317 sixth pin, 318 second spring seat, 319 sleeve,
32 clamp arms, 321 front clamp plate, 322 rear clamp plate, 323 third pin, 324 fourth pin, 325 fifth pin, 326 first spring seat,
33 cylinders, 331 magnetic sensors, 332 cylinder blocks,
34 of the clamping seat, 341 of the clamping plate,
35 the spring is compressed by the compression spring and,
4 Right clamp, 41 dog
5 clamp adjusting mechanism, 51 speed reducing motor, 52 driving pulley, 53 bearing seat, 54 adjusting screw rod, 55 driven pulley, 56 synchronous belt and 57 motor seat.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present invention is further illustrated by the following non-limiting examples in combination with the accompanying drawings.
The front, rear, left and right directions of the present invention are described with reference to the front, rear, left and right directions shown in the drawings. For ease of illustration, only the portions relevant to the embodiments of the present invention are shown.
Referring to fig. 1 and 2, a clamp structure applied to concrete test block grabbing comprises a connecting disc 1 connected with a feeding host, a clamp seat 2 is arranged at the lower part of the connecting disc 1, a left clamp 3, a right clamp 4 and a clamp adjusting mechanism 5 are arranged on the clamp seat 2, the left clamp 3 and the right clamp 4 can slide left and right on the clamp seat 2, and the clamp adjusting mechanism 5 can drive the left clamp 3 and the right clamp 4 to move oppositely or reversely.
Specifically, referring to fig. 3, the fixture base 2 includes a front vertical plate 21, a rear vertical plate 22 and an upper flat plate 23, upper ends of the front vertical plate 21 and the rear vertical plate 22 are connected to the connecting disc 1 through the upper flat plate 23, the upper flat plate 23 is connected to a lower portion of the connecting disc 1, upper ends of the front vertical plate 21 and the rear vertical plate 22 are connected to the upper flat plate 23, a positioning column 24 is disposed at a lower end between the front vertical plate 21 and the rear vertical plate 22 for improving rigidity of the fixture base 2, and horizontal long grooves 211 are disposed at lower ends of the front vertical plate 21 and the rear vertical plate 22; the left clamp 3 comprises:
referring to fig. 3 to 10, a moving support 31 located between the front vertical plate 21 and the rear vertical plate 22, a clamping arm 32 hinged on the moving support 31, an air cylinder 33 and a clamping seat 34; the movable support 31 comprises a front vertical plate 311 and a rear vertical plate 312, a slide block 313 is arranged on the right side of the lower part of the front side surface of the front vertical plate 311 and the rear side surface of the rear vertical plate 312, and the slide block 313 can slide in the long groove 211; a nut 314 is connected to the lower portion between the front vertical plate 311 and the rear vertical plate 312, a first pin shaft 315 is arranged on the right side of the upper portions of the front vertical plate 311 and the rear vertical plate 312, a shaft sleeve 319 is arranged on the left side of the lower portions of the front vertical plate 311 and the rear vertical plate 312, a second pin shaft 316 is rotatably connected in the shaft sleeve 319, and two ends of the second pin shaft 316 penetrate through long grooves 211 in the front vertical plate 21 and the rear vertical plate 22 and extend out of the front vertical plate 21 and the rear vertical plate;
the clamping arm 32 comprises a front clamping plate 321 and a rear clamping plate 322, the middle part of the front clamping plate 321 is hinged to the front end of the second pin shaft 316, and the middle part of the rear clamping plate 322 is hinged to the rear end of the second pin shaft 316; the upper parts of the front clamping plate 321 and the rear clamping plate 322 are provided with a third pin shaft 323, and the lower parts of the front clamping plate 321 and the rear clamping plate 322 are provided with a fourth pin shaft 324; a fifth pin shaft 325 is further arranged on the front clamping plate 321 and the rear clamping plate 322 of the clamping arm 32 and located at the lower portion of the third pin shaft 323, a sixth pin shaft 317 is arranged on the front vertical plate 311 and the rear vertical plate 312 of the movable support 31 and located at the lower portion of the air cylinder 33, a first spring seat 326 is arranged on the fifth pin shaft 325, a second spring seat 318 is arranged on the sixth pin shaft 317, and a compression spring 35 is arranged between the first spring seat 326 and the second spring seat 318.
The rod end of the air cylinder 33 is hinged to the third pin shaft 323, the tail end of the air cylinder is connected to the air cylinder seat 332, and the air cylinder seat 332 is hinged to the first pin shaft 315;
the left end of the clamping seat 34 is hinged on the fourth pin shaft 324, and the right end is provided with a clamping plate 241; the clamping plate 341 in this embodiment adopts the wear-resistant rubber block with 90 degrees hardness, and because the rubber material can provide stronger friction, the test block can be better clamped by the wear-resistant rubber block.
The left clamp 3 and the right clamp 4 have the same structure and are symmetrically arranged left and right, and the difference is that the screw direction of the nut 314 on the left clamp 3 is opposite to that of the nut 314 on the right clamp 4.
Referring to fig. 4 to 6, the clamp adjusting mechanism 5 includes a speed reducing motor 51, a bearing seat 53, and an adjusting screw 54, the speed reducing motor 51 is connected to a motor seat 57, a driving pulley 52 is disposed on an output shaft, and the motor seat 57 is connected to the bearing seat 53; the bearing seat 53 is positioned at the lower part between the front vertical plate 21 and the rear vertical plate 22 and is connected to the front vertical plate 21 and the rear vertical plate 22; the middle of the adjusting screw rod 54 is rotatably connected to the bearing seat 53 through a bearing, and the two ends of the adjusting screw rod are provided with external threads with opposite rotating directions and are meshed with the nut 314 on the movable support 31; the driven pulley 55 is provided on the adjustment screw 54 and connected to the driving pulley 52 via a timing belt 56. The reduction motor 51 is connected to the control system.
The lower end surfaces of the front vertical plate 21 and the rear vertical plate 22 are provided with diffuse reflection sensors 212 (not shown in the figure), and the diffuse reflection sensors 212 are connected with a control system.
Referring to fig. 8 to 10, the cylinder bodies of the cylinders 33 of the left and right clamps 3 and 4 are respectively provided with a magnetic sensor 331 for detecting the displacement of the piston rod of the cylinder, each cylinder 33 is provided with two magnetic sensors 331 respectively located at two ends of the cylinder body, and the magnetic sensors 331 are connected with a control system.
A switch bracket 25 is arranged on the clamp seat 2 and one side of the right clamp 4, two photoelectric switches 26 for detecting the positions of the clamping arms 32 are arranged on the switch bracket 25, and the photoelectric switches 26 are connected with a control system; a stopper 41 for triggering the photoelectric switch 26 is arranged above the front vertical plate 311 of the movable support 31 of the right clamp 4.
The air cylinder 33 is connected with an air source through a pipeline and an electromagnetic valve, and the electromagnetic valve is connected with a control system; the solenoid valve is two three-way valves in this embodiment, has an air inlet and two gas outlets, and the air inlet links to each other with the air supply, and the gas outlet links to each other with the cylinder, and every gas outlet divides into two routes pipeline, is connected to respectively on the air inlet of the same side cavity of cylinder 33 of left anchor clamps and right anchor clamps, all is connected with the atmospheric pressure alarm in two routes pipeline.
In this embodiment, the control system uses a PLC control system.
The working process of the embodiment is as follows:
(1) the clamp is connected with the feeding host machine through the connecting disc 1;
(2) the control system controls the speed reducing motor 51 to rotate to drive the adjusting screw 54 to rotate, and drives the left and right movable supports 31 to move oppositely or back to a position suitable for the size of the first test block; when the size of the test block changes, the steps can be repeated, so that the two movable supports 31 move to the position suitable for the size of the second test block; after the adjustment is finished, the piston rod on the cylinder 33 is in the minimum stroke state;
(3) the feeding host moves the clamp to the position above the test block conveying device, the diffuse reflection sensor 212 detects the position of the test block below the clamp, signals are transmitted to the control system, and the control system judges whether the test block can be grabbed or not; if the test block can be grabbed, the control system controls the piston rod of the air cylinder 33 to extend out to drive the clamping arms 32 to rotate, and the clamping seats 34 at the lower ends of the two clamping arms 32 are closed oppositely to clamp the test block, so that the test block is grabbed;
(4) the feeding host moves the clamp to the position above a test block conveying device of the testing machine, the control system controls the retraction of a piston rod of the air cylinder 33 to drive the clamping arm 32 to rotate, and the clamping seat 34 releases the test block; the clamping seats 34 at the lower ends of the two clamping arms 32 are separated back to release the test block;
(5) and (5) repeating the steps (2) to (4) and grabbing the next group of test blocks.
In the description of the present invention, it should be noted that the terms "left", "right", "front", "back", "upper", "lower", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and the above terms are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
The above-mentioned embodiments are only for understanding the present invention, and are not intended to limit the technical solutions of the present invention, and those skilled in the art can make various changes or modifications based on the technical solutions described in the claims, and all equivalent changes or modifications should be covered by the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a be applied to anchor clamps structure that concrete test block snatched, includes the connection pad that can be connected with the pay-off host computer, its characterized in that: the lower part of the connecting disc is provided with a clamp seat, the clamp seat is provided with a left clamp, a right clamp and a clamp adjusting mechanism, the left clamp and the right clamp can slide left and right on the clamp seat, and the clamp adjusting mechanism can drive the left clamp and the right clamp to move oppositely or backwards.
2. The clamp structure applied to the grabbing of the concrete test block according to claim 1, wherein: the fixture base comprises a front vertical plate and a rear vertical plate, the upper ends of the front vertical plate and the rear vertical plate are connected with the connecting disc, and the lower ends of the front vertical plate and the rear vertical plate are provided with horizontal long grooves; the left clamp include:
the movable support is positioned between the front vertical plate and the rear vertical plate and comprises a front vertical plate and a rear vertical plate, and a sliding block is arranged on the right side of the lower part of the front side surface of the front vertical plate and the right side of the rear side surface of the rear vertical plate and can slide in the long groove; the lower part between the front vertical plate and the rear vertical plate is connected with a nut, the right sides of the upper parts of the front vertical plate and the rear vertical plate are provided with first pin shafts, the left sides of the lower parts of the front vertical plate and the rear vertical plate are provided with second pin shafts, and two ends of each second pin shaft penetrate through elongated slots on the front vertical plate and the rear vertical plate and extend out of the front vertical plate and the rear vertical plate;
the clamping arm comprises a front clamping plate and a rear clamping plate, the middle part of the front clamping plate is hinged to the front end of the second pin shaft, and the middle part of the rear clamping plate is hinged to the rear end of the second pin shaft; the upper parts of the front clamping plate and the rear clamping plate are provided with third pin shafts, and the lower parts of the front clamping plate and the rear clamping plate are provided with fourth pin shafts;
the rod end of the cylinder is hinged to the third pin shaft, the tail end of the cylinder is connected to the cylinder seat, and the cylinder seat is hinged to the first pin shaft;
the left end of the clamping seat is hinged to the fourth pin shaft, and the right end of the clamping seat is provided with a clamping plate;
the left clamp and the right clamp are identical in structure and are symmetrically arranged left and right, and the screwing directions of the nut threads on the left clamp and the nut threads on the right clamp are opposite.
3. The clamp structure applied to the grabbing of the concrete test block according to claim 2, is characterized in that: the clamp adjusting mechanism comprises a clamp adjusting mechanism and a clamp adjusting mechanism,
the speed reducing motor is connected to the motor base, a driving belt wheel is arranged on an output shaft, and the motor base is connected to the bearing seat;
a bearing seat which is positioned at the lower part between the front vertical plate and the rear vertical plate and is connected with the front vertical plate and the rear vertical plate,
an adjusting screw rod, the middle of which is rotationally connected to the bearing seat through a bearing, two ends of which are provided with external threads with opposite rotation directions and are meshed with the nut on the movable support,
and the driven belt wheel is arranged on the adjusting screw rod and is connected with the driving belt wheel through a synchronous belt.
4. The clamp structure applied to concrete test block grabbing according to claim 2 or 3, is characterized in that: and a fifth pin shaft is further arranged on the front clamping plate and the rear clamping plate of the clamping arm and positioned at the lower part of the third pin shaft, a sixth pin shaft is arranged on the front vertical plate and the rear vertical plate of the movable support and positioned at the lower part of the cylinder, a first spring seat is arranged on the fifth pin shaft, a second spring seat is arranged on the sixth pin shaft, and a compression spring is arranged between the first spring seat and the second spring seat.
5. The clamp structure applied to concrete test block grabbing according to claim 2 or 3, is characterized in that: the clamping plate is a wear-resistant rubber block.
6. The clamp structure applied to concrete test block grabbing according to claim 2 or 3, is characterized in that: and diffuse reflection sensors are arranged on the lower end faces of the front vertical plate and the rear vertical plate and are connected with a control system.
7. The clamp structure applied to concrete test block grabbing according to claim 2 or 3, is characterized in that: the cylinder bodies of the left clamp and the right clamp are respectively provided with a magnetic sensor for detecting the displacement of a cylinder piston rod, each cylinder is provided with two magnetic sensors which are respectively positioned at two ends of the cylinder body, and the magnetic sensors are connected with a control system.
8. The clamp structure applied to concrete test block grabbing according to claim 2 or 3, is characterized in that: a switch bracket is arranged on the clamp seat and on one side of the right clamp, two photoelectric switches for detecting the positions of the clamping arms are arranged on the switch bracket, and the photoelectric switches are connected with a control system; and a stop block used for triggering the photoelectric switch is arranged above the front vertical plate of the right clamp movable support.
9. The clamp structure applied to concrete test block grabbing according to claim 2 or 3, is characterized in that: the cylinder is connected with an air source through a pipeline and an electromagnetic valve, and the electromagnetic valve is connected with a control system.
10. The clamp structure applied to the grabbing of the concrete test block according to claim 9, wherein: the electromagnetic valve is a two-position three-way valve and is provided with an air inlet and two air outlets, the air inlet is connected with an air source, the air outlets are connected with the air cylinder, each air outlet is divided into two pipelines which are respectively connected to the air inlets of cavities on the same side of the air cylinder of the left clamp and the right clamp, and air pressure alarms are connected to the two pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010688167.7A CN111687874A (en) | 2020-07-16 | 2020-07-16 | Be applied to anchor clamps structure that concrete test block snatched |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010688167.7A CN111687874A (en) | 2020-07-16 | 2020-07-16 | Be applied to anchor clamps structure that concrete test block snatched |
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|---|---|
| CN111687874A true CN111687874A (en) | 2020-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010688167.7A Pending CN111687874A (en) | 2020-07-16 | 2020-07-16 | Be applied to anchor clamps structure that concrete test block snatched |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113500540A (en) * | 2021-07-28 | 2021-10-15 | 沭阳鑫洪锐金属制品有限公司 | Connecting fastener |
| CN114227726A (en) * | 2021-11-29 | 2022-03-25 | 北京特种机械研究所 | Cover plate grabbing clamp |
| CN116929947A (en) * | 2023-09-15 | 2023-10-24 | 中国建筑一局(集团)有限公司 | Intensity testing device of concrete test block |
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2020
- 2020-07-16 CN CN202010688167.7A patent/CN111687874A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113500540A (en) * | 2021-07-28 | 2021-10-15 | 沭阳鑫洪锐金属制品有限公司 | Connecting fastener |
| CN114227726A (en) * | 2021-11-29 | 2022-03-25 | 北京特种机械研究所 | Cover plate grabbing clamp |
| CN114227726B (en) * | 2021-11-29 | 2023-12-19 | 北京特种机械研究所 | Cover plate grabbing clamp |
| CN116929947A (en) * | 2023-09-15 | 2023-10-24 | 中国建筑一局(集团)有限公司 | Intensity testing device of concrete test block |
| CN116929947B (en) * | 2023-09-15 | 2024-01-12 | 中国建筑一局(集团)有限公司 | Intensity testing device of concrete test block |
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