CN116793845A - A joint tension detection device - Google Patents

Abstract

The invention belongs to the technical field of tension detection, and discloses a joint tension detection device which comprises a base, wherein a fixed seat is fixedly connected to the top surface of the base, and a movable seat is slidably arranged on the top surface of the base. According to the invention, the clamping heads are driven to clamp and fix from the inside of the joint by realizing that the plurality of groups of push plates are used for driving the clamping heads to clamp and fix from the inside of the joint, and on the other hand, the plurality of groups of connecting ropes are pulled by utilizing the transverse movement of the movable plugs, the corresponding connecting plates are pulled to move in the vertical plane by matching with the connecting ropes, so that the annular distributed curved rods are driven to realize the movement of the upper clamping plates positioned at the outer side of the joint, the clamping and fixing of the inner side and the outer side of the end face of the joint are realized by matching with the clamping and fixing of the upper clamping plates, the stress condition of the joint is uniform, the deformation of the clamping surface of the joint is avoided under the condition of partial clamping and fixing, the stability of clamping and fixing is maintained, the stress at the actual clamping position is uniform, and meanwhile, the stress at the two ends of the joint is symmetrical, the clamping stability and reliability are greatly improved, the stability of the detection of the tension under the clamping is improved, and the use effect is good.

Description

A joint tension detection device

Technical field

The invention belongs to the technical field of tension detection, and is specifically a joint tension detection device.

Background technique

A joint, a communication term, is a device installed between cables and has certain insulation and sealing properties to enable two or more cables to run continuously. For tensile testing of joints, a tensile testing device is usually used for testing, in which the joint tensile strength The detection device is a device used to test the tensile capacity of material joints under stress. It mainly consists of fixtures, motion platforms, sensors, etc.

During the use of the joint tension detection device in the prior art, the two ends of the joint are usually clamped and fixed, and the sensing component is pasted in the middle of the inner wall of the joint, and the pushing mechanism is used to control the tension of the joint, and at the same time, the joint is deformed in the middle. During the process, the strain gauge in the pasted sensing component is driven to change to achieve tensile force detection. However, since both ends of the joint are tubular bodies, the outer clamping and fixing method is currently used during the tensile force detection clamping process. In fact, when the clamping force is sufficient, Under the action, both ends of the joint are indented and deformed, resulting in clamping failure. In the actual joint tension detection process, the stability is poor, the detection fails, and the use effect is poor.

In addition, when the joint tension detection device in the prior art is pasting and fixing the sensing component on the inner wall of the joint, the actual pasting position is inconvenient to control, and it is difficult to stably paste and fix the strain gauge of the sensing component on the inner wall of the joint, and the outer wall of the joint The structure is complex, and the stability of pasting and fixing at the deformed position is poor. The actual operation of fixing and processing the sensing component is complicated and troublesome, and the use effect is not good.

Contents of the invention

The object of the present invention is to provide a joint tension detection device to solve the problems raised in the above background technology.

In order to achieve the above object, the present invention provides the following technical solution: a joint tension detection device, including a base, a fixed base is fixedly connected to the top surface of the base, and a movable seat is slidably installed on the top surface of the base, and the fixed base A clamping seat is fixedly installed on the top of the clamping seat and the movable seat. The number of the clamping seats is two. A joint is provided between the two clamping seats. There are movable clamping seats at one end and inside of the clamping seat. cavity and storage cavity, the movable cavity and the storage cavity are connected, the outer surface of the clamping seat is provided with side grooves and installation openings, the inside of the clamping seat is provided with side holes, and the two sides of the side hole The ends are connected to the installation port and the movable cavity respectively. The movable cavity has a movable plug inside the movable cavity. The side groove is connected to the storage cavity. The inner surface of the side groove is fixedly connected with a fixed frame. There is a movable plate inside the fixed frame. The top and bottom surfaces of the movable plate are respectively fixedly connected with a clamping head and a push plate. A No. 1 spring is fixedly connected between the clamping head and the fixed frame. The clamp The outer surface of the tight seat is fixedly connected to a sleeve frame, and the inner part of the sleeve frame is movablely connected to a curved rod. The two ends of the curved rod are respectively fixedly connected to a connecting plate and an upper splint. The connecting plate is located inside the sleeve frame. , one end of the No. 2 spring is fixedly connected to the bottom surface of the connecting plate, and the other end of the No. 2 spring is fixedly connected to the outer surface of the clamping seat. One end of the connecting rope is fixedly connected to the bottom surface of the connecting plate. The other end of the connecting rope passes through the side hole and is fixedly connected to the movable plug. The storage cavity is filled with hydraulic oil. The upper splint and the clamping head are symmetrically distributed inside and outside the joint. One front end of the clamping seat A sensing component is provided, a push rod is fixedly connected to the end face of one of the movable plugs, the push rod passes through the clamping seat, and a curved tube is fixedly connected to the end face of the clamping seat, and the upper end of the curved tube is connected with the The sensing component is fixedly connected, the curved tube is filled with hydraulic oil, the inside of the fixed seat is equipped with an electric push rod, the top surface of the base is fixedly installed with an air supply mechanism, and the top of the air supply mechanism is fixedly connected. There is a control valve, and a connecting sleeve is fixedly connected to the inner end of the outer end of the movable chamber, and a connecting pipe is fixedly connected between the connecting sleeve and the control valve.

Preferably, the outer surface of the clamping head is a curved surface, the bottom surface of the upper clamping plate is a curved surface, and the clamping head and the upper clamping plate are distributed annularly on the clamping seat at equal intervals.

Preferably, a connecting hole is provided on the end face of one of the clamping seats. The inner surface of the connecting hole is movablely connected to the push rod. The connecting hole is connected to the curved tube. The front end of the push rod is movable connected to the push rod. In the curved tube.

Preferably, the sensing assembly includes an assembly frame, a moving plug, a round rod, a sensor, a No. 3 spring and a connecting wire. The assembly frame is fixedly connected to the top of the curved tube, and the moving plug is movably connected to the assembly frame. Inside, the round rod is fixedly connected to the top of the moving plug, the sensor is fixedly installed on the top surface of the round rod, the top surface of the sensor is coated with glue, and the No. 3 spring is fixedly connected inside the assembly frame. And it is fixedly connected to the moving plug, and the connecting line is fixedly connected to the bottom of the sensor.

Preferably, an inner cavity is provided on the side of the fixed base, the inside of the inner cavity is fixedly installed with the electric push rod, and a fixing plate is fixedly installed on the outer side of the fixed base.

Preferably, a chute is provided on the top surface of the base, the inner surface of the chute is slidably connected to the movable seat, and a clamping plate is fixedly connected to the side of the movable seat.

Preferably, a clamping slot is provided inside the base. The clamping slot is located on both sides of the chute and is connected with the chute. The inner surface of the clamping slot is movably connected to the clamping plate.

Preferably, the air supply mechanism includes a bottom seat, an air pump and an air pipe. The bottom seat is fixedly connected to the top surface of the base. The air pump is fixedly installed on the top surface of the bottom seat. The air pipe is fixedly connected to the air pump and the control valve. between.

Preferably, the top of the control valve is fixedly connected to a hot gas mechanism. The hot gas mechanism includes an insulation frame, a support plate, a heating pipe and a hot gas pipe. The insulation frame is fixedly connected to the top of the control valve, and the support plate is fixedly connected. Between the heat preservation frame and the bottom base, the heating pipe is fixedly installed inside the heat preservation frame, and the hot air pipe is fixedly connected to the front of the heat preservation frame.

The beneficial effects of the present invention are as follows:

1. The present invention uses a set of fixed clamping seats and a set of movable clamping seats, and makes the joints sleeved on the outside of the two sets of clamping seats, and under the pressure air of the air supply mechanism, the invention uses The incoming pressure air pushes the movable plug in the clamping seat, and cooperates with the movable plug to squeeze the hydraulic oil in the storage chamber. The incompressibility of the hydraulic oil is used to increase the hydraulic pressure in the storage chamber and act on the annularly distributed push force. On the board, multiple sets of push plates drive the clamping head to clamp and fix from the inside of the joint. On the other hand, the lateral movement of the movable plug is used to pull multiple sets of connecting ropes, and the connecting ropes pull the corresponding connecting plates to move vertically in the plane, thereby driving the The annularly distributed curved rod realizes the movement of the upper splint located outside the joint, and cooperates with the clamping and fixing of the upper splint to realize the clamping and fixing of the inner and outer sides of the joint end face, even out the stress of the joint, and avoid joint clamping caused by local clamping and fixing. The tight surface is deformed to maintain the stability of the clamping fixation, and the actual clamping position is evenly stressed. At the same time, the stress at both ends of the joint is symmetrical, which greatly improves the clamping stability and reliability, improves the stability of clamping pull force detection, and has good use effect.

2. In the present invention, the push rod is movablely connected to the end face of the clamping seat on the left side, and the push rod is fixedly connected to the corresponding movable plug, and the sensing component is added at the front end of the clamping seat to achieve clamping and fixation. At the same time, the movement control of the push rod is realized, and the hydraulic oil in the curved tube is squeezed at the same time. Cooperating with the connected assembly frame, the hydraulic pressure in the assembly frame rises and acts upward on the moving plug, thereby pushing the top sensor to move upward and connect with the moving plug. The inner wall of the joint is in contact to achieve convenient and stable bonding, ensuring that when the middle part of the joint is stretched and deformed, the strain gauge on the top of the bonded sensor will follow the deformation, thereby completing tension monitoring through the deformation, and the actual operation of the arrangement of the sensor on the joint is simple Convenient and effective.

3. The present invention adds a hot gas mechanism and uses a control valve to change the ventilation direction and seal the connecting pipe, so that the internal pressure of the clamping seats on both sides is maintained to maintain the clamping and fixation of the broken joint, and the heating pipe in the hot gas mechanism is started, so that After heating, the hot air passes through the hot air pipe toward the sensor for hot air heating to achieve hot melting of the glue. In conjunction with the cancellation of the pressure air and the opening of the connecting pipe, as the internal pressure of the clamping seat is released, the clamping seat cancels the clamping of the joint. Tightly fixed, and at the same time cooperate with the resetting of the sensing component to realize automatic separation of the sensor and the connector, which is convenient to separate and has good use effect.

Description of the drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic view of the back of the present invention;

Figure 3 is a schematic cross-sectional view of the present invention;

Figure 4 is an enlarged schematic diagram of the structure at A in Figure 3;

Figure 5 is a schematic diagram of the installation of the clamping seat and the sensing assembly of the present invention;

Figure 6 is an exploded schematic diagram of the left side clamping seat of the present invention;

Figure 7 is a schematic cross-sectional view of the left side clamping seat of the present invention;

Figure 8 is an exploded schematic diagram of the sensing assembly of the present invention;

Figure 9 is a schematic cross-sectional view of the hot air mechanism of the present invention.

In the picture: 1. Base; 2. Fixed seat; 3. Movable seat; 4. Clamping seat; 5. Movable cavity; 6. Storage cavity; 7. Side slot; 8. Installation port; 9. Side hole; 10. Movable plug; 11. Fixed frame; 12. Movable plate; 13. Clamping head; 14. No. 1 spring; 15. Push plate; 16. Frame; 17. Baffle; 18. Crank rod; 19. Connecting plate; 20. Upper splint; 21. No. 2 spring; 22. Air supply mechanism; 221. Bottom seat; 222. Air pump; 223. Air pipe; 23. Connecting sleeve; 24. Control valve; 25. Connecting pipe; 26. Connection hole; 27. Push rod; 28. Curved tube; 29. Sensing component; 291. Assembly frame; 292. Moving plug; 293. Round rod; 294. Sensor; 295. No. 3 spring; 296. Connecting wire; 30. Hot air mechanism ; 301. Insulation frame; 302. Support plate; 303. Heating pipe; 304. Hot gas pipe; 31. Fixed plate; 32. Inner cavity; 33. Electric push rod; 34. Chute; 35. Card slot; 36. Card Board; 37, joint; 38, connecting rope.

Implementation

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

As shown in Figures 1 to 9, an embodiment of the present invention provides a joint tension detection device, which includes a base 1. The top surface of the base 1 is fixedly connected with a fixed seat 2, and the top surface of the base 1 is slidably mounted with a movable seat 3. A clamping seat 4 is fixedly installed on the top of the fixed seat 2 and the movable seat 3. The number of the clamping seats 4 is two. A joint 37 is provided between the two clamping seats 4. One end and the inside of the clamping seat 4 are respectively A movable cavity 5 and a storage cavity 6 are provided. The movable cavity 5 and the storage cavity 6 are connected. The outer surface of the clamping seat 4 is provided with side grooves 7 and installation openings 8 respectively. The inside of the clamping seat 4 is provided with side holes 9. Both ends of the side hole 9 are connected with the installation port 8 and the movable cavity 5 respectively. The movable plug 10 is movable inside the movable cavity 5. The side groove 7 is connected with the storage cavity 6, and the inner surface of the side groove 7 is fixedly connected. There is a fixed frame 11, and a movable plate 12 is movable inside the fixed frame 11. The top and bottom surfaces of the movable plate 12 are respectively fixedly connected with a clamping head 13 and a push plate 15. The clamping head 13 and the fixed frame 11 are fixed. A No. 1 spring 14 is connected to the clamping seat 4. The outer surface of the clamping seat 4 is fixedly connected to a sleeve frame 16. The internal movable sleeve of the sleeve frame 16 is connected to a bending rod 18. The two ends of the bending rod 18 are respectively fixedly connected to a connecting plate 19 and an upper splint 20. , the connecting plate 19 is located inside the frame 16. One end of the No. 2 spring 21 is fixedly connected to the bottom surface of the connecting plate 19. The other end of the No. 2 spring 21 is fixedly connected to the outer surface of the clamping seat 4. The bottom surface of the connecting plate 19 One end of the connecting rope 38 is fixedly connected, and the other end of the connecting rope 38 passes through the side hole 9 and is fixedly connected to the movable plug 10. The storage cavity 6 is filled with hydraulic oil, and the upper splint 20 and the clamping head 13 are symmetrically distributed up and down in the joint 37 Inside and outside, the front end of a clamping seat 4 is provided with a sensing component 29. The end face of a movable plug 10 is fixedly connected with a push rod 27. The push rod 27 passes through the clamping seat 4. The end face of a clamping seat 4 is fixedly connected with a push rod 27. The upper end of the curved tube 28 is fixedly connected with the sensing component 29. The curved tube 28 is filled with hydraulic oil. An electric push rod 33 is provided on the inside of the fixed base 2. An air supply mechanism 22 is fixedly installed on the top surface of the base 1. A control valve 24 is fixedly connected to the top of the air supply mechanism 22, a connecting sleeve 23 is fixedly connected to the inner end of the outer end of the movable chamber 5, and a connecting pipe 25 is fixedly connected between the connecting sleeve 23 and the control valve 24.

First Embodiment: When performing tension detection, glue is first applied to the top surface of the sensor 294 in the sensing assembly 29, and then the joint 37 is sleeved toward the clamping seat 4 above the fixed seat 2, so that the joint 37 One end is sleeved on the outside of the left clamping seat 4, and then the movable seat 3 is pushed so that the movable seat 3 moves along the chute 34, and the clamping seat 4 on the top of the movable seat 3 is sleeved on the right side of the joint 37, After adjusting the position, start the air supply mechanism 22 so that the air pump 222 in the air supply mechanism 22 inputs pressurized air to the control valve 24 (specifically a four-way control valve) through the air pipe 223 to achieve simultaneous opening and closing of both sides and top opening and closing control. ), keep the control valve 24 open on both sides and seal the top, so that the pressure air passes into the communication pipe 25 through the control valve 24, and as the pressure air enters the two sets of clamping seats 4 through the communication pipe 25 and the communication sleeve 23 In the movable chamber 5, the pressurized air entering the movable chamber 5 pushes the movable plug 10 of the internal movable socket to move laterally. As the movable plug 10 moves, the hydraulic oil on the other side of the movable plug 10 is squeezed and replenished to the storage chamber 6. , as the oil pressure in the storage chamber 6 increases, the hydraulic pressure acts on the push plate 15 and pushes the movable plate 12 and the clamping head 13 to move, and causes the No. 1 spring 14 to stretch, causing the clamping head 13 to move outward. And squeeze the clamping joint 37 from the inside of the joint 37, and at the same time pull the connected connecting rope 38 as the movable plug 10 moves, and as the connecting rope 38 made of tough steel wire pulls the connecting plate 19 located in the installation port 8, As the connecting plate 19 drives the curved rod 18 to move downward, the curved rod 18 drives the upper clamping plate 20 to approach and clamp and fix along the outside of the joint 37. At the same time, the connecting plate 19 compresses the No. 2 spring 21 in the installation port 8, so that the joint 37 is The ends are fully clamped and fixed at the same time. At the same time, as the movable plug 10 in the left clamping seat 4 moves and drives the push rod 27 on its end face to move laterally, the push rod 27 moves along the horizontal end of the bottom of the curved tube 28 and squeezes it. The internal hydraulic oil is refilled into the assembly frame 291 in the sensing assembly 29 as the hydraulic oil is replenished, causing the hydraulic pressure in the assembly frame 291 to rise and act on the bottom surface of the moving plug 292, causing the moving plug 292 to move upward and drive the top The sensor 294 moves up and contacts the inner wall of the joint 37. Maintain the pressure contact and wait for the glue to be bonded and fixed. After completing the bonding and fixing of the sensor 294, start the electric push rod 33 and act on the side of the movable seat 3. As the electric push rod 33 Under the action of constant thrust, the clamping seat 4 on the upper part of the movable seat 3 pulls the joint 37 laterally, causing an interactive pulling force in both directions inside the joint 37. As the pulling force increases, the middle part of the joint 37 begins to stretch and deform. At the same time, The strain gauge at the top of the pasted sensor 294 is driven to deform, and the external display device displays the tensile force value. As the push continues, the tensile force increases, gradually causing the joint 37 to break, recording the detection data, and completing the detection.

First, by using a set of fixed clamping seats 4 and a set of movable clamping seats 4, and by making the joint 37 sleeve on the outside of the two sets of clamping seats 4, and by supplying the pressurized air from the air supply mechanism 22 Next, the supplied pressurized air is used to push the movable plug 10 in the clamping seat 4. With the movable plug 10, the hydraulic oil in the storage chamber 6 is squeezed, and the incompressibility of the hydraulic oil is used to increase the hydraulic pressure in the storage chamber 6. It is high and acts on the annularly distributed push plates 15 to realize that multiple sets of push plates 15 drive the clamping heads 13 to clamp and fix from the inside of the joint 37. On the other hand, the lateral movement of the movable plug 10 is used to pull multiple sets of connecting ropes 38 to coordinate the connection. The rope 38 pulls the corresponding connecting plate 19 to move in the vertical plane, thereby driving the annularly distributed curved rod 18 to realize the movement of the upper splint 20 located outside the joint 37, and cooperates with the clamping and fixation of the upper splint 20 to realize the internal and external movement of the end face of the joint 37. Clamping and fixing uniformly stresses the joint 37, avoids deformation of the clamping surface of the joint 37 caused by local clamping and fixation, maintains the stability of the clamping and fixation, and the actual clamping position is uniformly stressed, and at the same time, both ends of the joint 37 are The force is symmetrical, which greatly improves the stability and reliability of clamping, improves the stability of clamping pull force detection, and has good use effect.

In addition, the push rod 27 is movablely sleeved on the end face of the left clamping seat 4, and the push rod 27 is fixedly connected to the corresponding movable plug 10, and cooperates with the sensor assembly 29 added at the front end of the clamping seat 4, so that While clamping and fixing, the movement control of the push rod 27 is realized, and the hydraulic oil in the curved tube 28 is squeezed at the same time. Cooperating with the connected assembly frame 291, the hydraulic pressure in the assembly frame 291 rises and acts upward on the moving plug 292. Thereby pushing the top sensor 294 upward and contacting the inner wall of the joint 37 to achieve convenient and stable bonding, ensuring that when the middle part of the joint 37 is stretched and deformed, the strain gauge on the top of the bonded sensor 294 is driven to follow the deformation, thereby completing tension monitoring through the deformation. , and for the arrangement of the sensor 294 on the joint 37, the actual operation is simple and convenient, and the use effect is good.

As shown in Figures 1, 2, 3, 4, 5, 6 and 7, the outer surface of the clamping head 13 is a curved surface, and the bottom surface of the upper clamping plate 20 is a curved surface. The splints 20 are distributed annularly and equally spaced on the clamping seat 4. The end face of one clamping seat 4 is provided with a connecting hole 26. The inner surface of the connecting hole 26 is movably connected to the push rod 27. The connecting hole 26 is connected to the curved tube 28. , the front end of the push rod 27 is movablely sleeved in the curved tube 28.

During use, the arc-shaped upper clamping plate 20 and the clamping head 13 increase the clamping area and improve the clamping and fixing effect, and the connection hole 26 is used to facilitate the socket of the push rod 27 to realize the connection with the curved tube 28 The socket is connected to facilitate squeezing the hydraulic oil in the curved pipe 28.

As shown in Figures 3, 5 and 8, the sensing assembly 29 includes an assembly frame 291, a moving plug 292, a round rod 293, a sensor 294, a No. 3 spring 295 and a connecting wire 296. The assembly frame 291 is fixedly connected to the curved tube 28 At the top of the moving plug 292, the moving plug 292 is movably connected inside the assembly frame 291. The round rod 293 is fixedly connected to the top of the moving plug 292. The sensor 294 is fixedly installed on the top surface of the round rod 293. The top surface of the sensor 294 is coated with glue. , the No. 3 spring 295 is fixedly connected inside the assembly frame 291 and fixedly connected with the moving plug 292 , and the connecting wire 296 is fixedly connected at the bottom of the sensor 294 .

During use, the sensing assembly 29 is used to be fixedly connected to the deformation of the joint 37 and cooperate with the existing sensor 294 (the reinforcement material in the adhesive and the friction between their layers are used to make the sensor closely fit. Test the surface of the object to realize the force monitoring of the connection, and specifically use the resistive pressure sensor of the strain gauge or the pressure sensor that integrates both strain gauge and sensor technology for tension monitoring) to complete the real-time monitoring of the tension, and it is required during actual operation Clean the inner wall of joint 37 to maintain the bonding effect.

As shown in Figures 1, 2, 3 and 9, an inner cavity 32 is provided on the side of the fixed base 2. The inside of the inner cavity 32 is fixedly installed with the electric push rod 33. A fixing plate is fixedly installed on the outer side of the fixed base 2. 31. A chute 34 is provided on the top surface of the base 1. The inner surface of the chute 34 is slidably connected to the movable base 3. A clamping plate 36 is fixedly connected to the side of the movable base 3. A clamping slot 35 is provided inside the base 1. The slot 35 is located on both sides of the chute 34 and is connected with the chute 34. The inner surface of the slot 35 is movablely connected to the clamping plate 36. The air supply mechanism 22 includes a bottom seat 221, an air pump 222 and an air pipe 223. The bottom seat 221 is fixed. Connected to the top surface of the base 1, the air pump 222 is fixedly installed on the top surface of the bottom seat 221. The air pipe 223 is fixedly connected between the air pump 222 and the control valve 24. The top of the control valve 24 is fixedly connected with a hot gas mechanism 30. The hot gas mechanism 30 includes The insulation frame 301, the support plate 302, the heating pipe 303 and the hot gas pipe 304. The insulation frame 301 is fixedly connected to the top of the control valve 24, the support plate 302 is fixedly connected between the insulation frame 301 and the bottom seat 221, and the heating pipe 303 is fixedly installed on Inside the heat preservation frame 301, the hot air pipe 304 is fixedly connected to the front side of the heat preservation frame 301.

During use, the installation of the electric push rod 33 is completed through the inner cavity 32, and the movable seat 3 is pushed forward in cooperation with the electric push rod 33 or other moving mechanisms, thereby achieving a transverse pulling force on the joint 37, and through the chute 34 and the card The sliding and limiting function of the groove 35 limits the moving direction of the movable seat 3 to ensure stable stretching, and by using the air supply mechanism 22 to provide pressurized air, the movement control of the movable plug 10 is realized, and it cooperates with the changing pressure of the control valve 24 After the air is directed, the hot air mechanism 30 is used to realize the hot melt treatment of the glue to facilitate the completion of separation.

Second Embodiment: When the joint 37 is detected to be broken, the control valve 24 is directly started and activated, so that the control valve 24 closes both sides and passes the pressurized air upward into the hot gas mechanism 30, and starts the heating pipe 303 in the hot gas mechanism 30. , as the pressurized air enters the insulation frame 301 and heats the hot air, operate the hot air pipe 304 toward the fracture joint 37 on the corresponding side of the fixed seat 2, and make the hot air toward the bonding surface between the corresponding joint 37 and the sensor 294. With the hot air Continuously blowing to make the glue hot melt, then close the air supply mechanism 22 and reset the control valve 24, so that the two sides are opened and connected, so that the pressure air in the clamping seat 4 is released, and the No. 1 spring 14 and the No. 2 spring 21 and the No. 3 spring 295 are all reset, and the sensor 294 is completely separated from the broken joint 4.

First, by adding a hot gas mechanism 30, and using the control valve 24 to change the ventilation direction and seal the communication pipe 25, the clamping seats 4 on both sides maintain the clamping and fixation of the broken joint 37 under pressure, and start the hot gas mechanism 30. The heating tube 303 causes the heated hot air to pass through the hot air tube 304 toward the sensor 294 for hot air heating to achieve hot melting of the glue. In conjunction with the cancellation of the pressure air and the opening of the connecting tube 25, as the internal pressure of the clamping seat 4 is released, the The clamping seat 4 cancels the clamping and fixing of the joint 37, and at the same time cooperates with the resetting of the sensing component 29 to realize the automatic separation of the sensor 294 and the joint 37. The separation is convenient and the use effect is good.

Working principle and usage process: When performing tension detection, glue is first applied to the top surface of the sensor 294 in the sensing assembly 29, and then the joint 37 is sleeved toward the clamping seat 4 above the fixed seat 2, so that the joint 37 One end of the clamping seat 4 is sleeved on the outside of the left clamping seat 4, and then the movable seat 3 is pushed so that the movable seat 3 moves along the chute 34, and the clamping seat 4 on the top of the movable seat 3 is sleeved on the right side of the joint 37 , after adjusting the position, start the air supply mechanism 22 so that the air pump 222 in the air supply mechanism 22 inputs pressurized air to the control valve 24 (specifically a four-way control valve) through the air pipe 223 to achieve simultaneous opening and closing of both sides and the top opening and closing. control), keep the control valve 24 open on both sides and seal the top, so that the pressure air passes through the control valve 24 into the communication pipe 25, and as the pressure air enters the two sets of clamping seats 4 through the communication pipe 25 and the communication sleeve 23 In the movable chamber 5, the pressurized air entering the movable chamber 5 pushes the movable plug 10 of the internal movable socket to move laterally. As the movable plug 10 moves, the hydraulic oil on the other side of the movable plug 10 is squeezed and replenished to the storage chamber. 6, as the oil pressure in the storage chamber 6 increases, the hydraulic pressure acts on the push plate 15 and pushes the movable plate 12 and the clamping head 13 to move, and causes the No. 1 spring 14 to stretch, causing the clamping head 13 to move outward. Move and squeeze the clamping joint 37 from the inside of the joint 37, and at the same time pull the connected connecting rope 38 as the movable plug 10 moves, and pull the connecting plate 19 located in the installation opening 8 as the connecting rope 38 made of tough steel wire pulls , as the connecting plate 19 drives the curved rod 18 to move downward, the curved rod 18 drives the upper clamping plate 20 to approach and clamp and fix along the outside of the joint 37. At the same time, the connecting plate 19 compresses the No. 2 spring 21 in the installation port 8, so that the joint 37 Both ends are fully clamped and fixed at the same time. At the same time, as the movable plug 10 in the left clamping seat 4 moves and drives the push rod 27 on its end face to move laterally, the push rod 27 moves along the horizontal end of the bottom of the curved tube 28 and squeezes Press the internal hydraulic oil, and as the hydraulic oil is replenished into the assembly frame 291 in the sensing assembly 29, the hydraulic pressure in the assembly frame 291 rises and acts on the bottom surface of the moving plug 292, causing the moving plug 292 to move up and drive The sensor 294 on the top moves up and contacts the inner wall of the joint 37. Maintain the pressure contact and wait for the glue to be bonded and fixed. After completing the bonding and fixing of the sensor 294, start the electric push rod 33 and act on the side of the movable seat 3. With the electric push rod 33 is continuously pushed, causing the clamping seat 4 on the upper part of the movable seat 3 to pull the joint 37 laterally, causing an interactive pulling force in both directions inside the joint 37. As the pulling force increases, the middle part of the joint 37 begins to stretch and deform. At the same time, the strain gauge on the top of the pasted sensor 294 is driven to deform, and the external display device displays the tensile force value. As it continues to be pushed, the tensile force increases, gradually causing the joint 37 to break, recording the detection data, and completing the detection. When the joint 37 is detected to be broken, directly Start the control valve 24 and act, so that the control valve 24 closes both sides and passes the pressurized air upward into the hot gas mechanism 30, and starts the heating pipe 303 in the hot gas mechanism 30, as the pressurized air enters the heat preservation frame 301 and is heated position hot air, operate the hot air pipe 304 toward the broken joint 37 on the corresponding side of the fixed base 2, and make the hot air move toward the bonding surface of the corresponding joint 37 and the sensor 294. As the hot air blows continuously, the glue melts, and then the supply is turned off. The pneumatic mechanism 22 is reset, and the control valve 24 is reset, so that both sides are opened and connected, so that the pressure air in the clamping seat 4 is relieved, the No. 1 spring 14, the No. 2 spring 21 and the No. 3 spring 295 are all reset, and the sensor 294 is connected to the broken Connector 4 is completely separated.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (9)

1. The utility model provides a connect pulling force detection device, includes base (1), its characterized in that: the utility model discloses a movable push plate, including base (1), fixed seat (2), movable seat (3) are installed to the top surface fixedly connected with of base (1), movable seat (3) are installed to the top slidable of base (1), fixed seat (2) and movable seat (3)'s top all fixed mounting have clamp seat (4), the quantity of clamp seat (4) is two, two be equipped with between clamp seat (4) and connect (37), movable cavity (5) and storage chamber (6) have been seted up respectively to the one end and the inside of clamp seat (4), movable cavity (5) and storage chamber (6) are linked together, side slot (7) and installing port (8) have been seted up respectively to the surface of clamp seat (4), side hole (9) are seted up inside side hole (9), both ends and installing port (8) and movable cavity (5) are linked together respectively, movable plug (10) have been cup jointed to the inside of movable cavity (5), side slot (7) are linked together with storage chamber (6), fixed surface frame (11) of side slot (7) and inside fixed surface frame (11), fixed surface frame (12) have cup jointed top surface (12) and fixed push plate (13) respectively, the utility model discloses a push rod clamping device, including a clamping seat (4), a connecting rod (18), a connecting plate (20), a connecting plate (19) and a connecting plate (21) are fixedly connected with a spring (14) between the clamping head (13) and the fixed frame (11), the outer surface fixedly connected with cover frame (16) of the clamping seat (4), curved rod (18) are sleeved in the cover frame (16) in the movable mode, connecting plate (19) and clamping head (20) are fixedly connected at two ends of curved rod (18), the connecting plate (19) is located in the cover frame (16), one end of a second spring (21) is fixedly connected to the bottom surface of the connecting plate (19), the other end of the second spring (21) is fixedly connected to the outer surface of the clamping seat (4), one end of a connecting rope (38) is fixedly connected to the bottom surface of the connecting plate (19), the other end of the connecting rope (38) penetrates through a side hole (9) and is fixedly connected with a movable plug (10), hydraulic oil is filled in a storage cavity (6), the upper clamping plate (20) and the clamping head (13) are distributed on the inner side and the outer side of a joint (37), one front end of the clamping seat (4) is provided with a sensing component, one end of the sensing component (29) is fixedly connected with a push rod (27), the end face (27) is fixedly connected with the push rod (27), the upper end and the sensing subassembly (29) of curved tube (28) are fixed to be linked together, it has hydraulic oil to fill in curved tube (28), the inboard of fixing base (2) is equipped with electric putter (33), the top surface fixed mounting of base (1) has air feed mechanism (22), the top fixed intercommunication of air feed mechanism (22) has control valve (24), the inside of movable chamber (5) outer end has fixedly cup jointed intercommunication cover (23), fixed intercommunication has communicating pipe (25) between intercommunication cover (23) and control valve (24).

2. The joint tension detecting apparatus according to claim 1, wherein: the outer surface of the clamping head (13) is an arc surface, the bottom surface of the upper clamping plate (20) is an arc surface, and the clamping head (13) and the upper clamping plate (20) are distributed on the clamping seat (4) at equal intervals in an annular mode.

3. The joint tension detecting apparatus according to claim 1, wherein: the end face of the clamping seat (4) is provided with a connecting hole (26), the inner surface of the connecting hole (26) is movably sleeved with a push rod (27), the connecting hole (26) is communicated with a curved pipe (28), and the front end of the push rod (27) is movably sleeved in the curved pipe (28).

4. The joint tension detecting apparatus according to claim 1, wherein: the sensor assembly (29) comprises an assembly frame (291), a movable plug (292), a round rod (293), a sensor (294), a third spring (295) and a connecting wire (296), wherein the assembly frame (291) is fixedly communicated with the top of a curved pipe (28), the movable plug (292) is movably sleeved in the assembly frame (291), the round rod (293) is fixedly connected to the top of the movable plug (292), the sensor (294) is fixedly arranged on the top surface of the round rod (293), glue solution is coated on the top surface of the sensor (294), the third spring (295) is fixedly connected to the inside of the assembly frame (291) and is fixedly connected with the movable plug (292), and the connecting wire (296) is fixedly connected to the bottom of the sensor (294).

5. The joint tension detecting apparatus according to claim 1, wherein: an inner cavity (32) is formed in the side face of the fixed seat (2), the inner portion of the inner cavity (32) is fixedly installed with the electric push rod (33), and a fixed plate (31) is fixedly installed on the outer side face of the fixed seat (2).

6. The joint tension detecting apparatus according to claim 1, wherein: the top surface of base (1) has seted up spout (34), the internal surface of spout (34) is cup jointed with movable seat (3) in a sliding way, the side fixedly connected with cardboard (36) of movable seat (3).

7. The joint tension detecting apparatus according to claim 1, wherein: the base (1) is internally provided with clamping grooves (35), the clamping grooves (35) are positioned on two sides of the sliding groove (34) and are communicated with the sliding groove (34), and the inner surfaces of the clamping grooves (35) are movably sleeved with the clamping plates (36).

8. The joint tension detecting apparatus according to claim 1, wherein: the air supply mechanism (22) comprises a bottom seat (221), an air pump (222) and an air pipe (223), wherein the bottom seat (221) is fixedly connected to the top surface of the base (1), the air pump (222) is fixedly arranged on the top surface of the bottom seat (221), and the air pipe (223) is fixedly communicated between the air pump (222) and the control valve (24).

9. The joint tension detecting apparatus according to claim 1, wherein: the top of control valve (24) is fixed to be linked together and is had steam mechanism (30), steam mechanism (30) are including heat preservation frame (301), backup pad (302), heating pipe (303) and hot air pipe (304), heat preservation frame (301) fixed connection is at the top of control valve (24), backup pad (302) fixed connection is between heat preservation frame (301) and bottom seat (221), inside at Wen Kuang (301) is fixed to heating pipe (303), the front at heat preservation frame (301) is fixed to hot air pipe (304) intercommunication.