Torque testing device

Abstract

The invention discloses a torque testing device, and belongs to the field of torque detection, the torque testing device comprises a mounting rack, the inner top wall of the mounting rack is provided with a torque sensor, and the detection end of the torque sensor is provided with a fixing mechanism for fixing a bottle body; guide rods are uniformly arranged on the mounting frame, the guide rods are jointly sleeved with a mounting plate, a coupler is arranged on the mounting plate, and a clamping block is arranged at the output end of the coupler; the first elastic film deforms and wraps the bottle cap, the bottom wall of the first elastic film exerts pressure on the hot melt adhesive in the soft state in the clamping groove, then the pressurizing mechanism exerts pressure in the clamping groove, at the moment, the clamping groove is in a high-pressure state, the first elastic film wraps the bottle cap, and at the moment, the outer wall of the first elastic film sinks into an anti-skid groove in the surface of the bottle cap. The top wall and the bottom wall of the first elastic film are both provided with anti-skid lines, so that the first elastic film can be fixed through the cured hot melt adhesive, and meanwhile, the bottle cap is fixed through the first elastic film.

Description

Technical Field

[0001] The present invention relates to the field of torque detection, and more particularly 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. The realization of this goal depends on the appropriate unscrewing torque: too low a torque value may cause the bottle cap to be loosely sealed, which may cause air or liquid leakage, not only affecting the quality of the product, but also shortening its shelf life; and when the bottle contains easily oxidizable substances, sufficient torque is the key to protecting the contents from air. However, although excessive torque is conducive to sealing, it makes it difficult for consumers to open the bottle, and may even cause accidental injuries or require the use of tools to open it. Conversely, too low a torque increases the risk of accidental detachment of the bottle cap.

[0003] Therefore, in the process of producing and packaging 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 special torque measuring device, and then the bottle cap is loosened manually. However, this traditional measurement method has a significant problem: Since the bottle cap is tightened manually by applying pressure with fingers, the strength of the fingers is often difficult to control accurately, 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 final measured torque value and the actual required torque value.

[0004] Therefore, a torque testing device is proposed. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a torque testing device, which can improve the detection accuracy and reduce the error when detecting the torque of the bottle cap.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A torque testing device comprises a mounting frame, a torque sensor is arranged on the inner top wall of the mounting frame, and a fixing mechanism for fixing a bottle body is arranged on the detection end of the torque sensor; The mounting frame is evenly provided with guide rods, the guide rods are sleeved with mounting plates, the mounting plates are provided with couplings, and the output end of the couplings is provided with a clamping block; A card slot is provided on the card block, a heating wire is provided in the card slot, a driving mechanism for driving the card block to move is provided on the mounting plate, hot melt adhesive is provided in the card slot, and a curing mechanism for solidifying the hot melt adhesive is provided on the card block; A first elastic membrane is fixedly mounted on the surface of the card block, and the top wall and the bottom wall of the first elastic membrane are both provided with anti-slip grooves; and a pressurizing mechanism for providing pressure to the card slot is provided on the card block; A plug hole is arranged on the side wall of the card slot, a push rod is slidably installed in the plug hole, and a spring is installed between the side wall of the plug hole and the push rod.

[0008] Furthermore, the driving mechanism includes a motor fixedly mounted on the bottom wall of the mounting plate, the output end of the motor is fixedly connected to the clamping block, and a hydraulic rod whose output end is fixedly connected to the motor housing is fixedly mounted on the inner bottom wall of the mounting frame.

[0009] Furthermore, the curing mechanism includes a heat dissipation groove provided on the side wall of the ejector pin, the heat dissipation groove is connected to the plug hole, a heat dissipation hole connected to the outside is provided on the side wall of the plug hole, and the ejector pin is made of metal; The sliding sleeve on the outer wall of the block is provided with an insulation sleeve, the insulation sleeve covers the surface of the heat dissipation hole, an elastic member is installed between the insulation sleeve and the coupling, and a transfer mechanism for driving the insulation sleeve to move is provided on the mounting plate.

[0010] Furthermore, the transfer mechanism includes a magnet fixedly mounted on the top wall of the thermal insulation sleeve, and a coil connected in series with the heating wire is fixedly mounted on the mounting plate.

[0011] Furthermore, the fixing mechanism includes a tray fixedly mounted on the detection end of the torque sensor, a bidirectional threaded rod is rotatably mounted on the tray, and a driving gear is fixedly sleeved on the bidirectional threaded rod; Two driven gears are rotatably mounted on the tray, the driving gear meshes with the driven gear, and both the driving gear and the driven gear are bevel gears; A one-way threaded rod is mounted on the rotating shaft of each driven gear; Sleeves are threadedly mounted on both the one-way threaded rod and the two-way threaded rod, and guide grooves corresponding to the sleeves are evenly arranged on the tray, and the sleeves pass through the guide grooves; A clamping rod with a rectangular cross section is vertically slidably inserted on the bottom wall of the sleeve.

[0012] Furthermore, the pressurizing mechanism comprises a groove formed on a side wall of the card slot, the groove is filled with ammonia gas, and a second elastic membrane covering the surface of the groove is fixedly mounted on the side wall of the card slot.

[0013] Furthermore, a mounting hole is provided on the end surface of the push rod, a third elastic membrane is fixedly installed in the mounting hole, and a gas supply mechanism for providing gas to the mounting hole is provided on the clamping block.

[0014] Furthermore, the air supply mechanism includes an elastic air bag fixedly mounted on the bottom wall of the slot, and an output end of the elastic air bag extends into the mounting hole.

[0015] Furthermore, the first elastic film, the second elastic film and the third elastic film can be any one of a silicone film, a polyimide film, a polyetheretherketone film or a fluororubber film.

[0016] Furthermore, a cavity is opened on the elastic member, an intake valve and an exhaust valve are embedded on 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 socket, 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 socket is arc-shaped.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) In this scheme, the first elastic film is deformed and wrapped around the outside of the bottle cap through the cooperation of the card slot, the first elastic film, and the electric heating wire. The bottom wall of the first elastic film applies pressure to the soft hot melt adhesive in the card slot, and then the pressure mechanism applies pressure to the card slot. At this time, the card slot 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-skid groove on the surface of the bottle cap, and then the curing mechanism solidifies the hot melt adhesive in the card slot. Since the top wall and the bottom wall of the first elastic film are both provided with anti-skid grooves, the first elastic film can be fixed by the solidified hot melt adhesive, and the bottle cap can be fixed by the first elastic film at the same time; at this time, through the cooperation of the first elastic film and the hot melt adhesive, the side wall and the bottom wall of the bottle cap are both subjected to the pressure and friction of the first elastic film, which plays a role in making the force on the bottle cap uniform.

[0018] (2) In this scheme, the groove, the second elastic membrane, and the ammonia gas cooperate with each other. When the temperature in the 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, thereby expanding the second elastic membrane. During the expansion of the second elastic membrane, the air pressure in the slot increases, so the first elastic membrane also expands. At this time, the pressure on the hot melt adhesive in the soft state is increased, which has the effect of increasing the pressure on the hot melt adhesive.

[0019] (3) This solution is provided by setting a mounting hole, a third elastic membrane, and an elastic airbag; the bottle cap applies pressure to the elastic airbag through the first elastic membrane, at which time the elastic airbag is squeezed and deformed, and the gas in the elastic airbag is discharged into the mounting hole through the output end, and the air pressure in the mounting hole increases. At this time, the third elastic membrane 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 membrane is relatively large, and part of the hot melt adhesive is discharged through the gap between the push rod and the first elastic membrane. The remaining part of the hot melt adhesive that cannot be discharged in time will quickly enter the anti-slip groove on the surface of the first elastic membrane, thereby improving the connection effect between the hot melt adhesive and the first elastic membrane when the hot melt adhesive is solidified. In the subsequent process of the hot melt adhesive rotating with the card block, it plays a role in ensuring that the solidified hot melt adhesive can drive the bottle cap to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1It is a front structural schematic diagram of the present invention; Figure 2 It is a bottom view structural schematic diagram of the present invention; Figure 3 It is a cross-sectional structural schematic diagram of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure at A in the middle; Figure 5 For the present invention Figure 3 A schematic diagram of the enlarged structure at B in the middle; Figure 6 For the present invention Figure 3 Schematic diagram of the enlarged structure at C in the middle; Figure 7 It is a schematic cross-sectional structural diagram of the tray of the present invention.

[0021] Description of the numbers in the figure: 1. Mounting frame; 2. Torque sensor; 3. Guide rod; 4. Mounting plate; 5. Coupling; 6. Block; 7. Heating wire; 8. First elastic membrane; 9. Push rod; 10. Spring; 11. Motor; 12. Hydraulic rod; 13. Insulation sleeve; 14. Elastic part; 15. Magnet; 16. Coil; 17. Bidirectional threaded rod; 18. Driving gear; 19. Driven gear; 20. Unidirectional threaded rod; 21. Sleeve; 22. Block; 23. Second elastic membrane; 24. Third elastic membrane; 25. Elastic airbag; 26. Inlet valve; 27. Exhaust valve; 28. Catheter; 29. ​​Tray. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0023] Embodiment 1: See also Figures 1 to 7 A torque testing device includes a mounting frame 1 and a display. A torque sensor 2 is provided on the inner top wall of the mounting frame 1. A fixing mechanism for fixing a 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 on the display. The mounting frame 1 is evenly fixed with guide rods 3, a plurality of guide rods 3 are commonly sleeved with a mounting plate 4, 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; A card slot is provided on the top wall of the card block 6, and the cross section of the card slot is polygonal. A heating wire 7 is fixedly embedded on the side wall of the card slot. A driving mechanism for driving the card block 6 to move is provided on the mounting plate 4. Hot melt adhesive is filled in the card slot, and a curing mechanism for solidifying the hot melt adhesive is provided on the card block 6. A first elastic membrane 8 is fixedly mounted on the surface of the card block 6, and the top wall and the bottom wall of the first elastic membrane 8 are both provided with anti-slip grooves; and a pressurizing mechanism for providing pressure to the card slot is provided on the card block 6; A socket is provided on the side wall of the slot, and a push rod 9 is slidably installed in the socket, and a spring 10 is installed between the side wall of the socket and the push rod 9; the spring 10 applies pressure to the push rod 9, so that the push rod 9 contacts the side wall of the bottle cap, applies friction to the side wall of the bottle cap, and then can increase the friction on the side wall of the bottle cap, thereby improving the fixing effect of the bottle cap.

[0024] The driving mechanism includes a motor 11 fixedly mounted 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 whose output end is fixedly connected to the housing of the motor 11 is fixedly mounted on the inner bottom wall of the mounting frame 1 .

[0025] After the bottle to be tested is fixed on the detection end of the torque sensor 2 by the fixing mechanism, the bottle cap of the bottle to be tested is located at the lower end of the bottle, and 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 toward the direction close to the torque sensor 2, and the heat generated by the heating wire 7 heats the hot melt adhesive and puts it in a soft state that is easy to deform.

[0026] In order to facilitate twisting of the bottle cap, an anti-skid groove is usually provided on the outer wall of the existing bottle cap to increase the friction between the finger and the bottle cap, making it easier to twist the bottle cap.

[0027] After the bottle cap fits with the top wall of the first elastic membrane 8, the bottle cap continues to move downward, at which time the first elastic membrane 8 is deformed and wrapped around the outside of the bottle cap. As the bottle cap moves downward, the bottom wall of the first elastic membrane 8 exerts pressure on the soft hot melt adhesive in the slot, thereby enabling the first elastic membrane 8 pushed by the bottle cap to sink into the soft hot melt adhesive.

[0028] Then the pressure mechanism applies pressure to the card slot. At this time, the card slot is in a high-pressure state, so the hot-melt adhesive in a soft state will apply pressure to the first elastic membrane 8, so that the first elastic membrane 8 tightly wraps the bottle cap. At this time, the outer wall of the first elastic membrane 8 sinks into the anti-slip groove on the surface of the bottle cap, and in the process of the bottle cap pushing the first elastic membrane 8, the end face of the push rod 9 contacts the bottom wall of the first elastic membrane 8. Since the end face of the push rod 9 is an arc surface, the push rod 9 will retract into the insertion hole, and the spring 10 is squeezed. When the bottom wall of the bottle cap moves below the bottom wall of the push rod 9, the spring 10 pushes the push rod 9 to extend out of the insertion hole, and the end face of the push rod 9 applies pressure to the first elastic membrane 8, thereby improving the wrapping effect of the first elastic membrane 8 on the bottle cap.

[0029] Then, the high pressure state is maintained in the card slot and the heating is stopped. At the same time, the curing mechanism solidifies the hot melt adhesive in the card slot. Since the top wall and the bottom wall of the first elastic film 8 are provided with anti-slip grooves, the first elastic film 8 can be fixed by the solidified hot melt adhesive, and the bottle cap can be fixed by the first elastic film 8 at the same time; When the hot melt adhesive wrapped around the outside of the bottle cap is solidified, the motor 11 is started. At this time, the motor 11 drives the block 6 to rotate through the coupling 5. Since the cross-section of the block 6 is a polygon, the rotating block 6 will drive the solidified hot melt adhesive to rotate. At this time, through the cooperation of the first elastic film 8, the hot melt adhesive and the push rod 9, the side wall and the bottom wall of the bottle cap are both subjected to the pressure and friction of the first elastic film 8, which plays a role in making the bottle cap evenly stressed.

[0030] In the process of the bottle cap moving from stationary to being twisted, the torque sensor 2 will detect the maximum torque required to twist the bottle cap, thereby achieving the test effect of the torque required to twist the bottle cap. Compared with manually twisting the bottle cap, the cooperation of the first elastic membrane 8, hot melt adhesive and push rod 9 makes the bottle cap evenly stressed, thereby improving the detection accuracy.

[0031] After the detection is completed, the electric heating wire 7 is started, and the hot melt adhesive is in a soft and easily deformable state again, so that the bottle cap can be easily taken out and prepared again.

[0032] like Figure 6 As shown, the curing mechanism includes a heat dissipation groove provided on the side wall of the ejector pin 9, the heat dissipation groove is connected to the socket, and a heat dissipation hole connected to the outside is provided on the side wall of the socket, and the ejector pin 9 is made of metal, which has strong thermal conductivity, so that the heat of the hot melt adhesive can be transferred to the socket, thereby facilitating heat dissipation; An insulating sleeve 13 is provided on the sliding sleeve of the outer wall of the block 6, and the insulating sleeve 13 covers the surface of the heat dissipation hole. An elastic member 14 is installed between the insulating sleeve 13 and the coupling 5, and a transfer mechanism for driving the insulating sleeve 13 to move is provided on the mounting plate 4.

[0033] like Figure 6 As shown, the transfer mechanism includes a magnet 15 fixedly mounted on the top wall of the heat preservation sleeve 13, and a coil 16 connected in series with the heating wire 7 is fixedly mounted on the mounting plate 4.

[0034] During the heating process by the electric heating wire 7, the coil 16 is in a energized state. At this time, a magnetic field that repel each other with 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 thermal insulation sleeve 13 to move upward along the block 6, and the elastic member 14 is gradually stretched. When the thermal insulation sleeve 13 moves to the surface of the heat dissipation hole, the magnet 15 stops moving upward.

[0035] When the electric heating wire 7 stops heating, the magnetic field around the coil 16 disappears, the elastic member 14 shrinks and recovers, and drives the insulation sleeve 13 to move downward. At this time, the heat dissipation holes are exposed to the outside, so the gas in the jack that is heated and expanded will be discharged to the outside through the heat dissipation holes, thereby reducing the temperature of the ejector pin 9, increasing the temperature difference between the ejector pin 9 and the hot melt adhesive in a soft state, and playing a role in quickly cooling and solidifying the hot melt adhesive. Therefore, when the block 6 drives the hot melt adhesive to rotate, it can prevent the hot melt adhesive from deforming, thereby ensuring that the hot melt adhesive can continuously and stably apply torque to the bottle cap.

[0036] like Figure 2 As shown, the fixing mechanism includes a tray 29 fixedly mounted on the detection end of the torque sensor 2, on which a bidirectional threaded rod 17 is rotatably mounted, 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; Two driven gears 19 are rotatably mounted 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 gear 19, and both the driving gear 18 and the driven gear 19 are bevel gears; therefore, each driven gear 19 can rotate with the driving gear 18; A one-way threaded rod 20 is mounted on the rotating shaft of each driven gear 19, and the one-way threaded rod 20 is perpendicular to the two-way threaded rod 17; The one-way threaded rod 20 and the two-way threaded rod 17 are both threadedly mounted with sleeves 21, and guide grooves corresponding to the sleeves 21 are uniformly circumferentially opened on the tray 29, and the sleeves 21 penetrate the guide grooves; therefore, under the restriction of the side walls of the guide grooves, the sleeves 21 can be prevented from rotating, and during the rotation of the two-way threaded rod 17 and the one-way threaded rod 20, the corresponding sleeves 21 can only move correspondingly along the guide grooves; A clamping rod 22 with a rectangular cross section is vertically slidably inserted on the bottom wall of the sleeve 21; 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 the multiple sleeves 21 approach each other or move away from each other at the same time. When the multiple sleeves 21 approach each other at the same time, the bottle body can be clamped by the clamping rod 22, and when the bottle cap has a tendency to rotate, the bottle body can be prevented from rotating under the action of the rectangular clamping rod 22, thereby ensuring that the bottle cap can be twisted.

[0037] At the moment when the bottle cap is twisted, the bottle body has a tendency to move upward due to resistance. At this time, the clamping rod 22 moves upward and retracts into the sleeve 21, which improves the detection accuracy.

[0038] like Figure 3As shown, the pressurizing mechanism includes a groove opened on the side wall of the card slot, the groove is filled with ammonia, and a second elastic membrane 23 covering the surface of the groove is fixedly installed on the side wall of the card slot, so that the groove is in a sealed state to prevent ammonia leakage, and the elastic coefficient of the second elastic membrane 23 is smaller than the elastic coefficient of the first elastic membrane 8.

[0039] When the temperature in the card slot rises, the heat is transferred to the ammonia in the groove in the form of heat exchange. At this time, the ammonia expands, thereby expanding the second elastic membrane 23. During the expansion of the second elastic membrane 23, the air pressure in the card slot increases, so the first elastic membrane 8 also expands, which increases the pressure on the hot melt adhesive in a soft state, thereby increasing the pressure on the hot melt adhesive.

[0040] like Figure 5 As shown, a mounting hole is formed on the end surface of the push rod 9, a third elastic membrane 24 is fixedly mounted in the mounting hole, and a gas supply mechanism for providing gas to the mounting hole is provided on the clamping block 6.

[0041] like Figure 3 As shown, the air supply mechanism includes an elastic airbag 25 fixedly mounted on the bottom wall of the card slot, the output end of the elastic airbag 25 extends into the mounting hole, and the elastic airbag 25 is made of metal material, wherein the elastic airbag 25 of metal material is prior art and has been disclosed in Chinese patent publication number CN203112696U, and will not be repeated here.

[0042] When the hot melt adhesive is heated and in a soft state, the elastic airbag 25 is in a natural stretching state. At this time, the mounting hole is in a negative pressure state, so the third elastic membrane 24 is recessed toward the mounting hole, and the soft hot melt adhesive will automatically flow into the mounting hole.

[0043] When the bottle cap enters the card slot, the bottle cap applies pressure to the elastic airbag 25 through the first elastic membrane 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, and the third elastic membrane 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 membrane 8 is relatively large, and part of the hot melt adhesive is discharged through the gap between the push rod 9 and the first elastic membrane 8. The remaining part of the hot melt adhesive that cannot be discharged in time will quickly enter the anti-slip groove on the surface of the first elastic membrane 8, thereby improving the connection effect between the hot melt adhesive and the first elastic membrane 8 when the hot melt adhesive is solidified. In the subsequent process of the hot melt adhesive rotating with the card block 6, it plays a role in ensuring that the solidified hot melt adhesive can drive the bottle cap to rotate.

[0044] And in the process of heating the hot melt adhesive again to facilitate taking out the bottle cap, the elastic airbag 25 automatically recovers to prepare for working again.

[0045] like Figure 3As shown, the first elastic film 8, the second elastic film 23 and the third elastic film 24 can all be selected from any one of silicone film, polyimide film, polyetheretherketone film or fluororubber film; and hot melt adhesive is not easy to adhere to the surface of silicone film, polyimide film, polyetheretherketone film or fluororubber film.

[0046] like Figure 6 As shown, a cavity is formed on the elastic member 14, and an intake valve 26 and an exhaust valve 27 are embedded on the side walls of the cavity. A "Z"-shaped conduit 28 is installed on the output end of the exhaust valve 27. The top end of the conduit 28 extends into the socket, and the end face of the top end of the conduit 28 is parallel to the end face of the heat sink. Therefore, the gas discharged from the conduit 28 will be discharged into the heat sink, and the side wall of the heat sink away from the socket is arc-shaped.

[0047] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A torque testing device, comprising a mounting frame (1), a torque sensor (2) being arranged on the inner top wall of the mounting frame (1), and a fixing mechanism for fixing a bottle body being arranged on the detection end of the torque sensor (2); Features: The mounting frame (1) is evenly provided with guide rods (3), the guide rods (3) are collectively sleeved with a mounting plate (4), the mounting plate (4) is provided with a coupling (5), and the output end of the coupling (5) is provided with a clamping block (6); The card block (6) is provided with a card slot, a heating wire (7) is provided in the card slot, a driving mechanism for driving the card 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 card block (6); A first elastic membrane (8) is fixedly mounted on the surface of the card block (6), and the top wall and the bottom wall of the first elastic membrane (8) are both provided with anti-slip grooves; and a pressurizing mechanism for providing pressure to the card slot is provided on the card block (6); A plug hole is provided on the side wall of the slot, a push rod (9) is slidably installed in the plug hole, and a spring (10) is installed between the side wall of the plug hole and the push rod (9).

2. A torque testing device according to claim 1, characterized in that: The driving mechanism comprises a motor (11) fixedly mounted on the bottom wall of the mounting plate (4), the output end of the motor (11) being fixedly connected to a clamping block (6), and a hydraulic rod (12) having an output end fixedly connected to a housing of the motor (11) being fixedly mounted on the inner bottom wall of the mounting frame (1).

3. A torque testing device according to claim 2, characterized in that: The curing mechanism comprises a heat dissipation groove provided on the side wall of the ejector rod (9), the heat dissipation groove is connected to the plug hole, a heat dissipation hole connected to the outside is provided on the side wall of the plug hole, and the ejector rod (9) is made of metal; A heat-insulating sleeve (13) is provided on the sliding sleeve on the outer wall of the clamping block (6), and the heat-insulating sleeve (13) covers the surface of the heat dissipation hole. An elastic member (14) is installed between the heat-insulating sleeve (13) and the coupling (5), and a transfer mechanism for driving the heat-insulating sleeve (13) to move is provided on the mounting plate (4).

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

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

6. A torque testing device according to claim 1, characterized in that: The pressurizing mechanism comprises a groove opened on the side wall of the card slot, the groove is filled with ammonia gas, and a second elastic film (23) covering the surface of the groove is fixedly mounted on the side wall of the card slot.

7. A torque testing device according to claim 5, characterized in that: The end surface of the push rod (9) is provided with a mounting hole, a third elastic membrane (24) is fixedly installed in the mounting hole, and the clamping block (6) is provided with a gas supply mechanism for providing gas to the mounting hole.

8. A torque testing device according to claim 7, characterized in that: The air supply mechanism comprises an elastic air bag (25) fixedly mounted on the bottom wall of the slot, and the output end of the elastic air bag (25) extends into the mounting hole.

9. A torque testing device according to claim 8, characterized in that: The first elastic film (8), the second elastic film (23) and the third elastic film (24) can all be selected from any one of silicone film, polyimide film, polyetheretherketone film or fluororubber film.

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

Images