Outer hexagonal fastener capable of measuring tension

Abstract

The utility model discloses an external hexagonal fastener capable of measuring tension, which relates to the technical field of fastener tension testing and comprises a base and a fastening screw, an external hexagonal head is fixedly mounted on the top surface of the fastening screw, a hexagonal nut is in threaded connection with the fastening screw, two through holes are symmetrically formed in the outer side of the external hexagonal head and the outer side of the hexagonal nut respectively, and the two through holes are in threaded connection with the fastening screw. When the tension test fixture is used, the phenomenon that the fastener slips and falls off in a tension test can be avoided, the tension test can be smoothly carried out, the data is accurate and reliable, meanwhile, the clamping mechanism can limit the fasteners with different diameters, and meanwhile, the tension test fixture can adapt to through holes with different intervals.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener tension test technical field especially relates to the outside hexagonal fastener of measurable tension. BACKGROUND

[0002] The outside hexagonal fastener is a common mechanical connecting part, and the head thereof is hexagonal, facilitating the operation of tools such as wrenches. The outside hexagonal fastener mainly includes hexagonal bolts, nuts and the like. The hexagonal bolt is composed of a hexagonal head and a screw rod, and the screw rod is provided with threads. The hexagonal nut is used in cooperation with the bolt, and the parts are fastened by tightening, and the outside hexagonal fastener is widely used in the industries of mechanical manufacturing, construction, automobiles and the like, and has the advantages of reliable connection and convenient disassembly.

[0003] After the production of the outside hexagonal fastener, the tension thereof needs to be tested, and the test data can be used for optimizing the production process, screening defective products and ensuring that the outside hexagonal fastener can be safely and reliably used in various fields. However, the screw rod of the hexagonal bolt is cylindrical, and in the tension test, the clamp is prone to improper clamping, causing the screw rod to slip or even fall off when subjected to force. In view of this, the present application provides the outside hexagonal fastener of measurable tension. SUMMARY

[0004] The utility model discloses a kind of outside hexagonal fasteners of measurable tension, which is to solve the shortcomings in prior art.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] The outside hexagonal fastener of measurable tension includes a base and a fastening screw rod, the top surface of the fastening screw rod is fixedly installed with an outside hexagonal head, a hexagonal nut is threadedly connected to the fastening screw rod, two through holes are symmetrically formed in the outer side of the outside hexagonal head and the hexagonal nut, a lower rectangular frame is fixedly installed on the top surface of the base, an upper rectangular frame is slidably connected to the top surface of the base, two first electric telescopic rods are symmetrically installed on the top wall of the base, an adapter plate is installed on each outer side of the upper rectangular frame, and the bottom end of each first electric telescopic rod is fixedly connected to the top surface of the adapter plate corresponding in position, a clamping mechanism is arranged on the top surface of the lower rectangular frame and the bottom surface of the upper rectangular frame, and each clamping mechanism is in through connection with the corresponding through hole.

[0007] Preferably, each of the clamping mechanisms comprises a plurality of support plates, and the plurality of support plates are fixedly installed on the top surface of the lower rectangular frame and the bottom surface of the upper rectangular frame respectively, the outer side of each of the support plates is fixedly installed with a second electric telescopic rod, the other end of the plurality of second electric telescopic rods corresponding in position are all commonly installed with a driving seat, two threaded sleeves are symmetrically and slidably connected in each of the driving seats, the two threaded sleeves in each of the driving seats are driven to symmetrically slide by a driving mechanism, a bearing screw is slidably connected on each of the threaded sleeves, and each bearing screw is in penetrating connection with a corresponding through hole, the sliding of the bearing screw is limited by a fastening mechanism in each of the threaded sleeves, and each of the top surface of the lower rectangular frame and the top surface of the upper rectangular frame is fixedly installed with a fixed seat, a clamping groove is formed in each of the fixed seats, and each bearing screw is clamped in a clamping groove corresponding in position.

[0008] Preferably, each of the fastening mechanisms comprises two fastening nuts, and each fastening nut is in threaded connection with a bearing screw corresponding in position, and the two fastening nuts are in contact with the two sides of a threaded sleeve corresponding in position respectively.

[0009] Preferably, each of the driving mechanisms comprises an electric motor, and each electric motor is fixedly installed on the outer side of the driving seat, the output shaft of the electric motor penetrates through the driving seat corresponding in position and is connected with a double-headed screw rod, and each two threaded sleeves corresponding in position are symmetrically and threadedly connected on the double-headed screw rod.

[0010] Preferably, a plurality of guide rails are symmetrically installed on the top surface of the base, and each of the link plates is in sliding connection with a guide rail corresponding in position.

[0011] Preferably, a T-shaped groove is formed in each of the driving seats, and each threaded sleeve is in sliding connection with a T-shaped groove corresponding in position.

[0012] The utility model has the following beneficial effects:

[0013] 1. The utility model discloses a fastening screw, a hexagon nut, an outer hexagonal head, a through hole and the like are arranged, the fastener can be positioned through the through hole formed in the outer hexagonal head and the hexagon nut by the clamping mechanism, so that the fastener does not slip and fall in the tensile test, and the smooth progress of the tensile test and the accurate and reliable data are ensured.

[0014] 2. The utility model discloses a second electric telescopic rod, a double-headed screw rod, a threaded sleeve and the like realize that the fastener clamping space on the upper rectangular frame or the lower rectangular frame can be changed by starting the second electric telescopic rod at different positions, and the threaded sleeve can slide towards each other by the double-headed screw rod, so that the distance between the threaded sleeves is changed, so that the fastener of different diameters can be positioned, and the clamping mechanism can adapt to the through hole of different distances. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The structural schematic diagram of the external hexagonal fastener with measurable tension force provided by the utility model is shown in the figure;

[0016] Figure 2 The through hole opening structure schematic diagram of the external hexagonal fastener with measurable tension force provided by the utility model is shown in the figure;

[0017] Figure 3 The structure schematic diagram of the connecting plate of the external hexagonal fastener with measurable tension force provided by the utility model is shown in the figure;

[0018] Figure 4 The driving mechanism structure schematic diagram of the external hexagonal fastener with measurable tension force provided by the utility model is shown in the figure.

[0019] In the figure: 1, base; 2, lower rectangular frame; 3, upper rectangular frame; 4, fastening screw; 5, guide rail; 6, external hexagonal head; 7, hexagonal nut; 8, through hole; 9, first electric telescopic rod; 10, connecting plate; 11, fixing seat; 12, clamping groove; 13, bearing screw; 14, supporting plate; 15, second electric telescopic rod; 16, driving seat; 17, double-headed screw; 18, motor; 19, threaded sleeve; 20, fastening nut. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0021] The utility model provides technical scheme: as Figures 1-4 The utility model discloses an external hexagonal fastener with measurable tension force, which comprises a base 1 and a fastening screw 4, the top surface of the fastening screw 4 is fixedly installed with an external hexagonal head 6, the fastening screw 4 is threadedly connected with a hexagonal nut 7, two through holes 8 are symmetrically arranged on the outer sides of the external hexagonal head 6 and the hexagonal nut 7, the top surface of the base 1 is fixedly installed with a lower rectangular frame 2, the top surface of the base 1 is slidably connected with an upper rectangular frame 3, two first electric telescopic rods 9 are symmetrically installed on the top wall of the base 1, the two outer sides of the upper rectangular frame 3 are respectively installed with connecting plates 10, the bottom end of each first electric telescopic rod 9 is fixedly connected with the top surface of the connecting plate 10 corresponding in position, clamping mechanisms are arranged on the top surface of the lower rectangular frame 2 and the bottom surface of the upper rectangular frame 3, and each clamping mechanism is connected with the corresponding through hole 8 in a penetrating mode. It needs to be explained that the hexagonal nut 7 and the external hexagonal head 6 can be respectively limited by the through hole 8, so that they cannot rotate, and thus the tension test of the fastener can be satisfied, and the phenomenon that the fastener slips or falls during the test can be avoided.

[0022] Further, each clamping mechanism comprises a plurality of support plates 14, and the plurality of support plates 14 are respectively fixedly installed on the top surface of the lower rectangular frame 2 and the bottom surface of the upper rectangular frame 3, the outer side of each support plate 14 is fixedly installed with a second electric telescopic rod 15, the other end of the plurality of second electric telescopic rods 15 corresponding in position are commonly installed with a driving seat 16, the driving seat 16 can be driven to approach or move away from the fixing seat 11 through the driving of the second electric telescopic rod 15, so that the area of the upper rectangular frame 3 and the lower rectangular frame 2 for placing the fasteners can be changed, and the fasteners of different models can be conveniently clamped and limited.

[0023] Two threaded sleeves 19 are symmetrically and slidably connected in each driving seat 16, each driving seat 16 drives the two threaded sleeves 19 to symmetrically slide through a driving mechanism, a bearing screw 13 is slidably connected on each threaded sleeve 19, and each bearing screw 13 is in penetrating connection with the corresponding through hole 8, the sliding of the bearing screw 13 is limited by a fastening mechanism for each threaded sleeve 19, the top surface of each lower rectangular frame 2 and the top surface of the upper rectangular frame 3 are fixedly installed with a fixing seat 11, a clamping groove 12 is formed in each fixing seat 11, and each bearing screw 13 is clamped in the clamping groove 12 corresponding in position. It should be noted that the bearing screws 13 can be brought close to or away from each other through the driving mechanism and the threaded sleeves 19, so that the through holes 8 with different distances can be conveniently penetrated and limited.

[0024] Further, each fastening mechanism comprises two fastening nuts 20, and each fastening nut 20 is in threaded connection with the bearing screw 13 corresponding in position, and the two fastening nuts 20 are in contact with the two sides of the threaded sleeve 19 corresponding in position. By turning the two fastening nuts 20, the bearing screw 13 can be fixed on the threaded sleeve 19.

[0025] Further, each driving mechanism comprises an electric motor 18, and each electric motor 18 is fixedly installed on the outer side of the driving seat 16. The output shaft of the electric motor 18 penetrates the driving seat 16 corresponding in position and is connected with a double-headed screw 17, and each two threaded sleeves 19 corresponding in position are symmetrically and threadedly connected on the double-headed screw 17.

[0026] Further, the top surface of the base 1 is symmetrically installed with a plurality of guide rails 5, and each link plate 10 is slidably connected with the guide rail 5 corresponding in position. The guide rail 5 can guide the link plate 10, avoiding the deviation of the link plate 10 when sliding.

[0027] Further, a T-shaped groove is formed in each driving seat 16, and each threaded sleeve 19 is slidably connected with the T-shaped groove corresponding in position. The T-shaped groove limits the rotation of the threaded sleeve 19.

[0028] The utility model provides a can measure the external hexagonal fastener of force, concrete working principle is as follows: first can pass through fastening screw rod 4 and hexagon nut 7 threaded connection, thereby can change the position of hexagon nut 7 on fastening screw rod 4, then operator can start multiple first electric telescopic rod 9 drive link plate 10 with upper rectangle frame 3 slide down, with the length of fastening screw rod 4 is matched, and through starting multiple second electric telescopic rod 15 makes the interval distance between drive base 16 and fixed base 11 and the diameter of external hexagonal head 6 and hexagon nut 7 is matched,

[0029] Then start motor 18 drive double -end screw rod 17 to rotate, thereby can start two threaded bushings 19 slide towards each other, thereby make the interval of two threaded bushings 19 and the interval of two through -holes 8 on hexagon nut 7 or external hexagonal head 6 are consistent;

[0030] Then through the bearing screw rod 13 of setting in each threaded bushing 19, and make the other end of each threaded bushing 19 all penetrates the position corresponding through -hole 8, then operator passes through two fastening nuts 20 and fastens each bearing screw rod 13 on threaded bushing 19, and the other end of each bearing screw rod 13 all is clamped in the slot 12, at this time can complete the limiting fixing of fastener, then start two first electric telescopic rod 9 drive upper rectangle frame 3 slide up, thereby through the multiple bearing screw rod 13 of top pull external hexagonal head 6 and slide up, and through the multiple bearing screw rod 13 of bottom position fixing hexagon nut 7, thereby realize the tension test of fastener, and in the testing process, fastening screw rod 4 will not appear skidding or falling phenomenon, ensure the smooth progress of tension test and the accurate reliable data.

[0031] The above, only for the preferred specific implementation mode of the utility model, but the protection scope of the utility model is not limited to this, any skilled in the art person in the utility model disclosed technical range, according to the utility model technical scheme and the utility model concept of the utility model, equivalent replacement or change, all should be covered in the protection scope of the utility model.

Claims

1. A testable external hexagonal fastener comprising a base (1) and a fastening screw (4), characterized in that, The top surface of the fastening screw rod (4) is fixedly installed with an external hexagonal head (6), the fastening screw rod (4) is threadedly connected with a hexagonal nut (7), the external hexagonal head (6) and the external side of the hexagonal nut (7) are symmetrically provided with two through holes (8), the top surface of the base (1) is fixedly installed with a lower rectangular frame (2), the top surface of the base (1) is slidably connected with an upper rectangular frame (3), the top wall of the base (1) is symmetrically installed with two first electric telescopic rods (9), the two outer sides of the upper rectangular frame (3) are respectively installed with a link plate (10), and the bottom end of each first electric telescopic rod (9) is fixedly connected with the top surface of the position corresponding link plate (10), and the top surface of the lower rectangular frame (2) and the bottom surface of the upper rectangular frame (3) are both provided with clamping mechanisms, and each clamping mechanism is penetratingly connected with the corresponding through hole (8).

2. The torqueable hexagonal fastener of claim 1, wherein, Each clamping mechanism comprises a plurality of support plates (14), and the plurality of support plates (14) are respectively fixedly installed on the top surface of the lower rectangular frame (2) and the bottom surface of the upper rectangular frame (3), the outer side of each support plate (14) is fixedly installed with a second electric telescopic rod (15), the other end of the plurality of position corresponding second electric telescopic rods (15) is commonly installed with a driving seat (16), two threaded sleeves (19) are symmetrically slidably connected in each driving seat (16), each driving seat (16) drives the two threaded sleeves (19) to symmetrically slide through a driving mechanism, a bearing screw rod (13) is slidably connected on each threaded sleeve (19), and each bearing screw rod (13) is penetratingly connected with the corresponding through hole (8), the sliding of each bearing screw rod (13) is limited by a fastening mechanism, the top surface of each lower rectangular frame (2) and the top surface of each upper rectangular frame (3) are fixedly installed with a fixing seat (11), a clamping groove (12) is formed in each fixing seat (11), and each bearing screw rod (13) is clamped in the position corresponding clamping groove (12).

3. The torqueable hexagonal fastener of claim 2, wherein, Each fastening mechanism comprises two fastening nuts (20), each fastening nut (20) is threadedly connected with the position corresponding bearing screw rod (13), and the two fastening nuts (20) are respectively in contact with the two sides of the position corresponding threaded sleeve (19).

4. The torqueable hexagonal fastener of claim 3, wherein, Each driving mechanism comprises an electric motor (18), and each electric motor (18) is fixedly installed on the outer side of the driving seat (16), the output shaft of the electric motor (18) penetrates the position corresponding driving seat (16) and is connected with a double-headed screw rod (17), and each two position corresponding threaded sleeves (19) are symmetrically threadedly connected on the double-headed screw rod (17).

5. The torqueable hexagonal fastener of claim 4, wherein, The top surface of the base (1) is symmetrically installed with a plurality of guide rails (5), and each link plate (10) is slidably connected with the position corresponding guide rail (5).

6. The torqueable hexagonal fastener of claim 5, wherein, A T-shaped groove is formed in each driving seat (16), and each threaded sleeve (19) is slidably connected with the position corresponding T-shaped groove.

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