A torque testing device

Abstract

The present invention discloses a torque testing device, belonging to the field of torque detection, which includes a mounting frame. A torque sensor is provided on the inner top wall of the mounting frame, and a fixing mechanism for fixing the bottle body is provided on the detection end of the torque sensor; Guide rods are evenly arranged on the mounting frame, and a mounting plate is sleeved on the guide rods together. A coupling is provided on the mounting plate, and a chuck is provided on the output end of the coupling; The first elastic film deforms and wraps around the outside of the bottle cap. The bottom wall of the first elastic film applies pressure to the soft hot melt adhesive in the card slot, and then the pressurizing mechanism applies pressure to the inside of the card slot. At this time, the inside of the card slot is in a high-pressure state, and the first elastic film wraps the bottle cap. At this time, the outer wall of the first elastic film sinks into the anti-slip groove on the surface of the bottle cap. Then, the curing mechanism cures the hot melt adhesive in the card slot. Since anti-slip patterns are provided on both the top wall and the bottom wall of the first elastic film, the first elastic film can be fixed through the cured hot melt adhesive, and at the same time, the bottle cap can be fixed through the first elastic film.

Description

Technical Field

[0001] The present invention relates to the field of torque detection, and more specifically, to a torque testing device. Background Art

[0002] For bottled items, it is crucial to ensure proper sealing between the bottle cap and the bottle body. Achieving this goal depends on an appropriate tightening torque: too low a torque value may result in poor sealing of the bottle cap, leading to air leakage or liquid leakage, which not only affects the product quality but may also shorten its shelf life; when the bottle contains oxidizable substances, sufficient torque is even more crucial to protect the contents from air intrusion. However, too high a torque, although beneficial for sealing, makes it difficult for consumers to open the bottle, and may even cause accidental injuries or require the use of tools to open. Conversely, too small a torque increases the risk of the bottle cap falling off accidentally.

[0003] Therefore, during the production and packaging of bottled products, in order to ensure the best sealing performance between the bottle cap and the bottle body, it is necessary to accurately measure the tightening torque of the bottle cap; in the prior art, when performing this operation, the bottle body is usually fixed on a dedicated torque measuring device, and then the bottle cap is loosened manually. However, this traditional measurement method has a significant problem:

[0004] Since it is a human finger applying pressure to tighten the bottle cap, the strength of the finger is often difficult to accurately control, resulting in slight deformation of the bottle cap during the tightening process. This deformation not only affects the sealing effect between the bottle cap and the bottle body, but more importantly, it causes a large error between the finally measured torque value and the actual required torque value.

[0005] For this reason, a torque testing device is proposed. Summary of the Invention

[0006] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a torque testing device that can improve the detection accuracy and reduce errors when detecting the torque of the bottle cap.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A torque testing device includes a mounting frame. A torque sensor is provided on the inner top wall of the mounting frame, and a fixing mechanism for fixing the bottle body is provided on the detection end of the torque sensor;

[0009] Guide rods are evenly provided on the mounting frame. A mounting plate is sleeved on the guide rods together. A coupling is provided on the mounting plate, and a clamping block is provided on the output end of the coupling;

[0010] The clamping block is provided with a clamping groove, and an electric heating wire is arranged in the clamping groove. A driving mechanism for driving the clamping block to move is arranged on the mounting plate. Melting glue is contained in the clamping groove, and a curing mechanism for solidifying the melting glue is arranged on the clamping block.

[0011] The surface of the clamping block is fixedly installed with a first elastic film, and anti-slip patterns are arranged on both the top wall and the bottom wall of the first elastic film. And a pressing mechanism for providing pressure to the clamping groove is arranged on the clamping block.

[0012] A jack is opened on the side wall of the clamping groove, a ejector rod is slidably installed in the jack, and a spring is jointly installed between the side wall of the jack and the ejector rod.

[0013] Further, the driving mechanism includes a motor fixedly installed on the bottom wall of the mounting plate, the output end of the motor is fixedly connected with the clamping block, and a hydraulic rod with an output end fixedly connected with the motor housing is fixedly installed on the inner bottom wall of the mounting frame.

[0014] Further, the curing mechanism includes heat dissipation grooves opened on the side wall of the ejector rod, the heat dissipation grooves are communicated with the jack, heat dissipation holes communicated with the outside are opened on the side wall of the jack, and the ejector rod is made of a metal material.

[0015] A heat preservation sleeve is slidably sleeved on the outer wall of the clamping block, the heat preservation sleeve covers the surface of the heat dissipation hole, an elastic member is jointly installed between the heat preservation sleeve and the coupling, and a transfer mechanism for driving the heat preservation sleeve to move is arranged on the mounting plate.

[0016] Further, the transfer mechanism includes a magnet fixedly installed on the top wall of the heat preservation sleeve, and a coil connected in series with the electric heating wire is fixedly installed on the mounting plate.

[0017] Further, the fixing mechanism includes a tray fixedly installed on the detection end of the torque sensor, a bidirectional threaded rod is rotatably installed on the tray, and a driving gear is fixedly sleeved on the bidirectional threaded rod.

[0018] Two driven gears are rotatably installed on the tray, the driving gear meshes with the driven gears, and both the driving gear and the driven gears are bevel gears.

[0019] A unidirectional threaded rod is installed on the rotating shaft of each driven gear.

[0020] Sleeves are threadedly installed on both the unidirectional threaded rod and the bidirectional threaded rod. Guide grooves corresponding to the sleeves one by one are evenly circumferentially opened on the tray, and the sleeves penetrate through the guide grooves.

[0021] A clamping rod with a rectangular cross-section is vertically and slidably inserted into the bottom wall of the sleeve.

[0022] Further, the pressing mechanism includes a groove opened on the side wall of the clamping groove, ammonia gas is contained in the groove, and a second elastic film covering the surface of the groove is fixedly installed on the side wall of the clamping groove.

[0023] Further, an installation hole is formed in the end face of the ejector rod, a third elastic film is fixedly installed in the installation hole, and a gas supply mechanism for supplying gas to the installation hole is provided on the clamping block.

[0024] Further, the gas supply mechanism includes an elastic airbag fixedly installed on the bottom wall of the clamping groove, and the output end of the elastic airbag extends into the installation hole.

[0025] Further, any one of a silica gel film, a polyimide film, a polyether ether ketone film, or a fluororubber film can be selected for the first elastic film, the second elastic film, and the third elastic film.

[0026] Further, a cavity is formed in the elastic member, an intake valve and an exhaust valve are embedded in the side wall of the cavity, a conduit is installed on the output end of the exhaust valve, the top end of the conduit extends into the jack, and the end face of the top end of the conduit is parallel to the end face of the heat dissipation groove, and the side wall of the heat dissipation groove away from the jack is arc-shaped.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] (1) In this solution, through the mutual cooperation of the clamping groove, the first elastic film, and the heating wire, the first elastic film deforms and wraps around the outside of the bottle cap. The bottom wall of the first elastic film applies pressure to the soft hot melt adhesive in the clamping groove, and then the pressurizing mechanism applies pressure to the inside of the clamping groove. At this time, the inside of the clamping groove is in a high-pressure state, and the first elastic film tightly wraps the bottle cap. At this time, the outer wall of the first elastic film sinks into the anti-slip groove on the surface of the bottle cap. Then, the curing mechanism cures the hot melt adhesive in the clamping groove. Since anti-slip patterns are provided on both the top wall and the bottom wall of the first elastic film, the first elastic film can be fixed through the cured hot melt adhesive, and at the same time, the bottle cap is fixed through the first elastic film. At this time, through the cooperation of the first elastic film and the hot melt adhesive, both the side wall and the bottom wall of the bottle cap are subjected to the pressure and friction of the first elastic film, playing a role in making the force on the bottle cap uniform.

[0029] (2) In this solution, through the mutual cooperation of the groove, the second elastic film, and ammonia, when the temperature in the clamping groove rises, the heat is transferred to the ammonia in the groove in the form of heat exchange. At this time, the ammonia expands, so that the second elastic film expands. During the expansion process of the second elastic film, the air pressure in the clamping groove increases, so the first elastic film also expands. At this time, the pressure on the soft hot melt adhesive is increased, playing a role in increasing the pressure received by the hot melt adhesive.

[0030] (3) In this solution, installation holes, a third elastic membrane, and an elastic airbag are provided. The bottle cap applies pressure to the elastic airbag through the first elastic membrane. At this time, the elastic airbag is squeezed and deformed, and the gas in the elastic airbag is discharged into the installation hole through the output end. The air pressure in the installation hole increases. At this time, the third elastic membrane expands and pushes out the hot melt adhesive in the installation hole. At this time, the pressure between the pushed-out hot melt adhesive and the first elastic membrane is relatively large, and part of the hot melt adhesive is discharged through the gap between the ejector rod and the first elastic membrane. The remaining part of the hot melt adhesive that fails to be discharged in time will quickly enter the anti-slip patterns on the surface of the first elastic membrane. Therefore, when the hot melt adhesive cures, the connection effect between the hot melt adhesive and the first elastic membrane is improved. During the subsequent rotation of the bottle cap with the clamping block, it plays a role in ensuring that the cured hot melt adhesive can drive the bottle cap to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a front structural schematic diagram of the present invention;

[0032] Figure 2 is a bottom structural schematic diagram of the present invention;

[0033] Figure 3 is a sectional structural schematic diagram of the present invention;

[0034] Figure 4 is of the present invention Figure 3 an enlarged structural schematic diagram of part A in;

[0035] Figure 5 is of the present invention Figure 3 an enlarged structural schematic diagram of part B in;

[0036] Figure 6 is of the present invention Figure 3 an enlarged structural schematic diagram of part C in;

[0037] Figure 7 is a sectional structural schematic diagram of the tray of the present invention.

[0038] Description of the reference numerals in the drawings:

[0039] 1. mounting bracket; 2. torque sensor; 3. guide rod; 4. mounting plate; 5. coupling; 6. clamping block; 7. heating wire; 8. first elastic membrane; 9. ejector rod; 10. spring; 11. motor; 12. hydraulic rod; 13. heat insulation sleeve; 14. elastic member; 15. magnet; 16. coil; 17. bidirectional threaded rod; 18. driving gear; 19. driven gear; 20. unidirectional threaded rod; 21. sleeve; 22. clamping rod; 23. second elastic membrane; 24. third elastic membrane; 25. elastic airbag; 26. intake valve; 27. exhaust valve; 28. conduit; 29. tray. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the protection scope of the present invention.

[0041] Embodiment 1:

[0042] Please refer to Figures 1 to 7 , a torque testing device, including a mounting frame 1 and a display. A torque sensor 2 is provided on the inner top wall of the mounting frame 1, and a fixing mechanism for fixing the bottle body is provided on the detection end of the torque sensor 2; the torque sensor 2 is electrically connected to the display through a wire, and the torque value detected by the torque sensor 2 is displayed through the display.

[0043] Guide rods 3 are uniformly fixed on the mounting frame 1, and a mounting plate 4 is sleeved on a plurality of guide rods 3. A coupling 5 is provided on the mounting plate 4, and a clamping block 6 is provided on the output end of the coupling 5.

[0044] A card slot is opened on the top wall of the clamping block 6. The cross-section of the card slot is polygonal, and a heating wire 7 is fixedly embedded on the side wall of the card slot. A driving mechanism for driving the clamping block 6 to move is provided on the mounting plate 4. Hot melt adhesive is contained in the card slot, and a curing mechanism for solidifying the hot melt adhesive is provided on the clamping block 6.

[0045] A first elastic film 8 is fixedly installed on the surface of the clamping block 6, and anti-slip patterns are provided on both the top wall and the bottom wall of the first elastic film 8; and a pressing mechanism for providing pressure to the card slot is provided on the clamping block 6.

[0046] A jack is opened on the side wall of the card slot, and a push rod 9 is slidably installed in the jack. A spring 10 is jointly installed between the side wall of the jack and the push rod 9; pressure is applied to the push rod 9 through the spring 10, so that the push rod 9 contacts the side wall of the bottle cap, and frictional force is applied to the side wall of the bottle cap, thereby being able to increase the frictional force received by the side wall of the bottle cap and improve the fixing effect on the bottle cap.

[0047] The driving mechanism includes a motor 11 fixedly installed on the bottom wall of the mounting plate 4. The output end of the motor 11 is fixedly connected to the clamping block 6, and a hydraulic rod 12 with an output end fixedly connected to the outer shell of the motor 11 is fixedly installed on the inner bottom wall of the mounting frame 1.

[0048] After the bottle to be detected is fixed on the detection end of the torque sensor 2 by the fixing mechanism, the bottle cap of the bottle to be detected is located at the lower end of the bottle. Then, the hydraulic rod 12 and the heating wire 7 are started. At this time, the output end of the hydraulic rod 12 drives the mounting plate 4 to move towards the direction close to the torque sensor 2, and the heat generated by the heating wire 7 makes the hot melt adhesive heat up and be in a soft state that is easy to deform.

[0049] To facilitate the twisting of the bottle cap, anti-slip grooves are usually provided on the outer wall of the existing bottle cap to increase the friction between the fingers and the bottle cap and facilitate the twisting of the bottle cap.

[0050] After the bottle cap fits against the top wall of the first elastic film 8, the bottle cap continues to move downward. At this time, the first elastic film 8 deforms and wraps around the outside of the bottle cap. As the bottle cap moves downward, the bottom wall of the first elastic film 8 applies pressure to the soft hot melt adhesive in the card slot, so that the first elastic film 8 pushed by the bottle cap can sink into the soft hot melt adhesive.

[0051] Then, the pressurizing mechanism applies pressure to the inside of the card slot. At this time, the inside of the card slot is in a high-pressure state. Therefore, the soft hot melt adhesive will apply pressure to the first elastic film 8, causing the first elastic film 8 to tightly wrap the bottle cap. At this time, the outer wall of the first elastic film 8 sinks into the anti-slip grooves on the surface of the bottle cap. And during the process of the bottle cap pushing the first elastic film 8, the end face of the ejector rod 9 contacts the bottom wall of the first elastic film 8. Since the end face of the ejector rod 9 is an arc surface, the ejector rod 9 will retract into the jack, and the spring 10 is compressed. When the bottom wall of the bottle cap moves below the bottom wall of the ejector rod 9, the spring 10 pushes the ejector rod 9 to extend from the jack, and the end face of the ejector rod 9 applies pressure to the first elastic film 8, improving the wrapping effect of the first elastic film 8 on the bottle cap.

[0052] Then, keep the inside of the card slot in a high-pressure state and stop heating. At the same time, the curing mechanism cures the hot melt adhesive in the card slot. Since anti-slip patterns are provided on both the top wall and the bottom wall of the first elastic film 8, the first elastic film 8 can be fixed by the cured hot melt adhesive, and at the same time, the bottle cap is fixed through the first elastic film 8;

[0053] When the hot melt adhesive wrapped around the bottle cap cures, start the motor 11. At this time, the motor 11 drives the chuck 6 to rotate through the coupling 5. Since the cross-section of the chuck 6 is polygonal, the rotating chuck 6 will drive the cured hot melt adhesive to rotate. At this time, through the cooperation of the first elastic film 8, the hot melt adhesive and the ejector rod 9, both the side wall and the bottom wall of the bottle cap are subjected to the pressure and friction of the first elastic film 8, playing a role in making the force on the bottle cap uniform.

[0054] During the process of the bottle cap being twisted from rest, the torque sensor 2 will detect the maximum torque required to twist the bottle cap, thereby realizing the test effect of the torque required to unscrew the bottle cap. And compared with manually twisting the bottle cap, through the cooperation of the first elastic film 8, the hot melt adhesive and the ejector rod 9, the force on the bottle cap is made uniform, playing a role in improving the detection accuracy.

[0055] After the detection is completed, start the heating wire 7. At this time, the hot melt adhesive is again in a soft and easily deformable state, so as to facilitate the removal of the bottle cap and prepare for the next operation.

[0056] Such as Figure 6As shown, the curing mechanism includes heat dissipation grooves formed on the side wall of the ejector rod 9. The heat dissipation grooves communicate with the jack, and heat dissipation holes communicating with the outside are formed on the side wall of the jack. Moreover, the ejector rod 9 is made of metal, and the metal material has strong heat conduction performance, which is convenient for transferring the heat of the hot melt adhesive into the jack, thus facilitating heat dissipation.

[0057] A heat insulation sleeve 13 is slidably sleeved on the outer wall of the clamping block 6. The heat insulation sleeve 13 covers the surface of the heat dissipation hole. An elastic member 14 is jointly installed between the heat insulation sleeve 13 and the coupling 5. A transfer mechanism for driving the heat insulation sleeve 13 to move is provided on the mounting plate 4.

[0058] As Figure 6 shown, the transfer mechanism includes a magnet 15 fixedly installed on the top wall of the heat insulation sleeve 13, and a coil 16 fixedly installed on the mounting plate 4 and connected in series with the heating wire 7.

[0059] During the heating process of the heating wire 7, the coil 16 is in an energized state. At this time, a magnetic field that repels the magnet 15 is generated around the coil 16. The magnet 15 is subjected to a repulsive force. Under the action of the repulsive force, the magnet 15 drives the heat insulation sleeve 13 to move upward along the clamping block 6, and the elastic member 14 is gradually stretched. When the heat insulation sleeve 13 moves to the surface of the heat dissipation hole, the magnet 15 stops moving upward.

[0060] When the heating wire 7 stops heating, the magnetic field around the coil 16 disappears, the elastic member 14 contracts and returns to its original state and drives the heat insulation sleeve 13 to move downward. At this time, the heat dissipation hole is exposed to the outside. Therefore, the gas heated and expanded in the jack will be discharged to the outside through the heat dissipation hole, and then the temperature of the ejector rod 9 is reduced, increasing the temperature difference between the ejector rod 9 and the hot melt adhesive in a soft state, playing a role in quickly cooling and curing the hot melt adhesive. Therefore, when the clamping block 6 drives the hot melt adhesive to rotate, it can prevent the hot melt adhesive from deforming, playing a role in ensuring that the hot melt adhesive can continuously and stably apply torque to the bottle cap.

[0061] As Figure 2 shown, the fixing mechanism includes a tray 29 fixedly installed on the detection end of the torque sensor 2. A bidirectional threaded rod 17 is rotatably installed on the tray 29, and a driving gear 18 is fixedly sleeved on the bidirectional threaded rod 17. Therefore, the bidirectional threaded rod 17 can drive the driving gear 18 to rotate;

[0062] Two driven gears 19 are rotatably installed on the tray 29. The two driven gears 19 are symmetrically distributed on both sides of the driving gear 18. The driving gear 18 meshes with the driven gears 19, and both the driving gear 18 and the driven gears 19 are bevel gears. Therefore, each driven gear 19 can rotate with the driving gear 18;

[0063] A unidirectional threaded rod 20 is installed on the rotating shaft of each driven gear 19. The unidirectional threaded rod 20 is perpendicular to the bidirectional threaded rod 17;

[0064] Sleeve 21 is threadedly installed on both the unidirectional threaded rod 20 and the bidirectional threaded rod 17. Guide grooves corresponding to the sleeves 21 one by one are evenly and circumferentially formed on the tray 29, and the sleeves 21 penetrate through the guide grooves. Therefore, under the restriction of the side walls of the guide grooves, the rotation of the sleeves 21 can be prevented, and during the rotation of the bidirectional threaded rod 17 and the unidirectional threaded rod 20, the corresponding sleeves 21 can only move correspondingly along the guide grooves.

[0065] A rod 22 with a rectangular cross-section is vertically and slidably inserted into the bottom wall of the sleeve 21.

[0066] Therefore, when the staff manually rotates the bidirectional threaded rod 17, under the action of the driving gear 18 and the driven gear 19, the bidirectional threaded rod 17 and the unidirectional threaded rod 20 rotate synchronously, and a plurality of sleeves 21 approach each other or move away from each other simultaneously. When the plurality of sleeves 21 approach each other simultaneously, the bottle body can be clamped by the rod 22, and when the bottle cap has a tendency to rotate, the rotation of the bottle body can be prevented under the action of the rectangular rod 22, playing a role in ensuring that the bottle cap can be screwed.

[0067] At the moment when the bottle cap is screwed, the bottle body is subjected to a resistance and has a tendency to move upward. At this time, the rod 22 moves upward and retracts into the sleeve 21, playing a role in improving the detection accuracy.

[0068] As Figure 3 shown, the pressurizing mechanism includes a groove formed on the side wall of the card slot. Ammonia gas is contained in the groove, and a second elastic membrane 23 covering the surface of the groove is fixedly installed on the side wall of the card slot. Therefore, the groove is in a sealed state, which can prevent the leakage of ammonia gas, and the elastic coefficient of the second elastic membrane 23 is smaller than that of the first elastic membrane 8.

[0069] When the temperature in the card slot rises, the heat is transferred to the ammonia gas in the groove in the form of heat exchange. At this time, the ammonia gas expands, so that the second elastic membrane 23 expands. During the expansion of the second elastic membrane 23, the air pressure in the card slot increases. Therefore, the first elastic membrane 8 also expands. At this time, the pressure on the soft hot melt adhesive is increased, playing a role in increasing the pressure received by the hot melt adhesive.

[0070] As Figure 5 shown, an installation hole is formed on the end surface of the ejector rod 9, and a third elastic membrane 24 is fixedly installed in the installation hole, and a gas supply mechanism for supplying gas to the installation hole is provided on the clamping block 6.

[0071] As Figure 3 shown, the gas supply mechanism includes an elastic airbag 25 fixedly installed on the bottom wall of the card slot. The output end of the elastic airbag 25 extends into the installation hole, and the elastic airbag 25 is made of a metal material. Among them, the elastic airbag 25 made of the metal material is a prior art and has been disclosed in a Chinese patent with the publication number of CN203112696U, and will not be elaborated here.

[0072] When the hot melt adhesive is heated and in a soft state, the elastic airbag 25 is in a natural stretched state. At this time, the inside of the mounting hole is in a negative pressure state. Therefore, the third elastic film 24 is recessed toward the inside of the mounting hole, and at the same time, the soft hot melt adhesive will automatically flow into the mounting hole.

[0073] During the process of the bottle cap entering the card slot, the bottle cap applies pressure to the elastic airbag 25 through the first elastic film 8. At this time, the elastic airbag 25 is squeezed and deformed, and the gas in the elastic airbag 25 is discharged into the mounting hole through the output end. The air pressure in the mounting hole increases. At this time, the third elastic film 24 expands and pushes out the hot melt adhesive in the mounting hole. At this time, the pressure between the pushed-out hot melt adhesive and the first elastic film 8 is relatively large, and part of the hot melt adhesive is discharged through the gap between the ejector rod 9 and the first elastic film 8. The remaining part of the hot melt adhesive that fails to be discharged in time will quickly enter the anti-slip lines on the surface of the first elastic film 8. Therefore, when the hot melt adhesive solidifies, the connection effect between the hot melt adhesive and the first elastic film 8 is improved, and during the subsequent rotation of the hot melt adhesive with the clamping block 6, it plays a role in ensuring that the solidified hot melt adhesive can drive the bottle cap to rotate.

[0074] And during the process of reheating the hot melt adhesive to facilitate the removal of the bottle cap, the elastic airbag 25 automatically restores to prepare for re-operation.

[0075] As Figure 3 shown, the first elastic film 8, the second elastic film 23 and the third elastic film 24 can each be selected from any one of a silicone film, a polyimide film, a polyether ether ketone film or a fluororubber film; and the hot melt adhesive is not easily adhered to the surface of the silicone film, the polyimide film, the polyether ether ketone film or the fluororubber film.

[0076] As Figure 6 shown, a cavity is formed in the elastic member 14, and an air inlet valve 26 and an exhaust valve 27 are embedded on the side wall of the cavity. A "Z"-shaped conduit 28 is installed at the output end of the exhaust valve 27. The top end of the conduit 28 extends into the jack, and the end face of the top end of the conduit 28 is parallel to the end face of the heat dissipation groove. Therefore, the gas discharged from the conduit 28 will be discharged into the heat dissipation groove, and the side wall of the heat dissipation groove away from the jack end is arc-shaped.

[0077] The above is only a preferred specific embodiment of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A torque testing device, comprising a mounting frame (1), on the inner top wall of the mounting frame (1) there is provided a torque sensor (2), and on the detection end of the torque sensor (2) there is provided a fixing mechanism for fixing the bottle body; It is characterized in that: On the mounting frame (1) there are evenly provided guide rods (3), a mounting plate (4) is sleeved on the guide rods (3) together, on the mounting plate (4) there is provided a coupling (5), and on the output end of the coupling (5) there is provided a clamping block (6); On the clamping block (6) there is provided a clamping groove, in the clamping groove there is provided a heating wire (7), on the mounting plate (4) there is provided a driving mechanism for driving the clamping block (6) to move, in the clamping groove there is filled with hot melt adhesive, and on the clamping block (6) there is provided a curing mechanism for solidifying the hot melt adhesive; On the surface of the clamping block (6) there is fixedly installed a first elastic film (8), on the top wall and the bottom wall of the first elastic film (8) there are provided anti-slip patterns; and on the clamping block (6) there is provided a pressing mechanism for providing pressure to the clamping groove; On the side wall of the clamping groove there is provided a jack, in the jack there is slidably installed a ejector rod (9), and between the side wall of the jack and the ejector rod (9) there is jointly installed a spring (10).

2. The torque testing device according to claim 1, wherein: The driving mechanism includes a motor (11) fixedly installed on the bottom wall of the mounting plate (4), the output end of the motor (11) is fixedly connected with the clamping block (6), and on the inner bottom wall of the mounting frame (1) there is fixedly installed a hydraulic rod (12) whose output end is fixedly connected with the outer shell of the motor (11).

3. A torque testing device according to claim 2, characterized in that: The curing mechanism includes heat dissipation grooves opened on the side wall of the ejector rod (9), the heat dissipation grooves are communicated with the jack, on the side wall of the jack there are provided heat dissipation holes communicated with the outside, and the ejector rod (9) is made of metal material; On the outer wall of the clamping block (6) there is slidably sleeved a heat preservation sleeve (13), the heat preservation sleeve (13) covers the surface of the heat dissipation holes, between the heat preservation sleeve (13) and the coupling (5) there is jointly installed an elastic member (14), and on the mounting plate (4) there is provided a transfer mechanism for driving the heat preservation sleeve (13) to move.

4. A torque testing device according to claim 3, characterized in that: The transfer mechanism includes a magnet (15) fixedly installed on the top wall of the heat preservation sleeve (13), and on the mounting plate (4) there is fixedly installed a coil (16) connected in series with the heating wire (7).

5. A torque testing device according to claim 4, characterized in that: The fixing mechanism includes a tray (29) fixedly installed on the detection end of the torque sensor (2), on the tray (29) there is rotatably installed a bidirectional threaded rod (17), and on the bidirectional threaded rod (17) there is fixedly sleeved a driving gear (18); On the tray (29) there are rotatably installed two driven gears (19), the driving gear (18) meshes with the driven gears (19), and both the driving gear (18) and the driven gears (19) are bevel gears; On the rotating shaft of each driven gear (19) there is installed a unidirectional threaded rod (20); On both the unidirectional threaded rod (20) and the bidirectional threaded rod (17) there are threadedly installed sleeves (21), on the tray (29) there are evenly and circumferentially opened guide grooves corresponding to the sleeves (21) one by one, and the sleeves (21) penetrate through the guide grooves; A clamping rod (22) with a rectangular cross-section is vertically and slidably inserted into the bottom wall of the sleeve (21).

6. The torque testing device according to claim 1, wherein: The pressurizing mechanism includes a groove formed on the side wall of the clamping groove, ammonia gas is filled in the groove, and a second elastic membrane (23) covering the surface of the groove is fixedly installed on the side wall of the clamping groove.

7. A torque testing device according to claim 5, characterized in that: An installation hole is formed in the end face of the ejector rod (9), a third elastic membrane (24) is fixedly installed in the installation hole, and a gas supply mechanism for supplying gas to the installation hole is provided on the clamping block (6).

8. A torque testing device according to claim 7, wherein: The gas supply mechanism includes an elastic airbag (25) fixedly installed on the bottom wall of the clamping groove, and the output end of the elastic airbag (25) extends into the installation hole.

9. The torque testing device according to claim 8, characterized in that: The first elastic membrane (8), the second elastic membrane (23) and the third elastic membrane (24) can each be any one of a silica gel membrane, a polyimide membrane, a polyether ether ketone membrane or a fluororubber membrane.

10. A torque testing device according to claim 3, characterized in that: A cavity is formed in the elastic member (14), an intake valve (26) and an exhaust valve (27) are embedded in the side wall of the cavity, a conduit (28) is installed on the output end of the exhaust valve (27), the top end of the conduit (28) extends into the jack, and the end face of the top end of the conduit (28) is parallel to the end face of the heat dissipation groove, and the side wall of the heat dissipation groove away from the jack end is arc-shaped.

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