Nut tightening torsion strength detection device

Abstract

The utility model discloses a nut tightening torsion strength detection device which comprises a rack, a horizontal fixing plate is fixed on the top surface of a top plate of the rack, a lifting mechanism is fixed on the top surface of the left portion of the horizontal fixing plate, a right vertical plate is fixed on the right side wall of a lifting block of the lifting mechanism, and a lifting air cylinder is fixed on the upper portion of the right vertical plate. A horizontal lifting beam is fixed to the bottom end of a push rod of the lifting air cylinder, a torsion motor is fixed to the right end of the horizontal lifting beam, and a nut torsion head is fixed to an output shaft at the bottom of the torsion motor. A horizontal placing frame is placed on the top face of the middle of the horizontal fixing plate, an aluminum alloy part to be detected is fixed to the middle of the top face of the horizontal placing frame, a nut is connected to the aluminum alloy part in a threaded mode, and a nut torsion head vertically corresponds to the nut. The torsion strength of the nut can be automatically detected, the automation degree is high, and the effect is good.

Description

Technical field:

[0001] The utility model relates to the technical field of metal nut riveting equipment, and more specifically to a nut tightening torque strength detection device. Background technology:

[0002] Existing aluminum alloy parts need to be installed with nuts, and the torque strength of the nuts needs to be tested. The current method is to manually hold a torque wrench to test whether the nuts are tightened in place. The manual testing efficiency is low and the effect is poor. Utility model content:

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a nut tightening torque strength detection device, which can automatically detect the torque strength of the nut, has a high degree of automation and good effect.

[0004] The solution of the utility model to solve the technical problem is:

[0005] A nut tightening torque strength detection device comprises a frame, a horizontal fixing plate is fixed on the top surface of the top plate of the frame, a lifting mechanism is fixed on the left top surface of the horizontal fixing plate, a right vertical plate is fixed on the right side wall of the lifting block of the lifting mechanism, a lifting cylinder is fixed on the upper part of the right vertical plate, a horizontal lifting beam is fixed on the bottom end of the push rod of the lifting cylinder, a torque motor is fixed on the right end of the horizontal lifting beam, and a nut torque head is fixed on the output shaft at the bottom of the torque motor;

[0006] A horizontal placement rack is placed on the middle top surface of the horizontal fixing plate, an aluminum alloy part to be tested is fixed in the middle of the top surface of the horizontal placement rack, a nut is screwed on the aluminum alloy part, and the nut torque head corresponds to the nut up and down.

[0007] The lifting mechanism includes a vertical support frame, which is fixed on the left top surface of the horizontal fixed plate. The two ends of the vertical screw are movably connected to the upper top plate and the lower bottom plate of the vertical support frame through bearings. The top of the vertical screw extends out of the upper top plate and is fixed with a rotating wheel. The lifting block is screwed on the vertical screw.

[0008] Guide blocks are fixed on both the front and rear sides of the lifting block, vertical guide grooves are formed on the front and rear of the vertical plate of the vertical support frame, and guide parts are formed on the inner side walls of the guide blocks, which are inserted into the corresponding vertical guide grooves.

[0009] A lower bending frame is fixed to the bottom surface of the right part of the horizontal lifting beam, and the output shaft at the bottom of the torque motor is inserted into the guide through hole of the horizontal plate part of the lower bending frame.

[0010] The outstanding effects of the utility model are:

[0011] It can automatically detect the torsional strength of the nut, with a high degree of automation and good effect. Description of the drawings:

[0012] Figure 1 It is a partial structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the local structure at the lifting block. Specific implementation method:

[0014] For example, see Figures 1 to 2 As shown, a nut tightening torque strength detection device includes a frame 10, a horizontal fixing plate 11 is fixed to the top surface of the top plate of the frame 10, a lifting mechanism 20 is fixed to the left top surface of the horizontal fixing plate 11, and the lifting mechanism 20 includes a vertical support frame 26, the vertical support frame 26 is fixed to the left top surface of the horizontal fixing plate 11, and the two ends of the vertical screw 27 are movably connected to the upper top plate and the lower bottom plate of the vertical support frame 26 through bearings, the top of the vertical screw 27 extends out of the upper top plate and is fixed with a rotating wheel 271, and the lifting block 21 is screwed on the vertical screw 27; guide blocks 211 are fixed to the front and rear sides of the lifting block 21, and the front and rear parts of the vertical plate of the vertical support frame 26 are formed with vertical guide grooves, and the inner side wall of the guide block 211 is formed with a guide part, which is inserted into the corresponding vertical guide groove.

[0015] Further, an upper horizontal fixing plate 40 is fixed on the right side wall of the upper part of the right vertical plate, a lower horizontal fixing plate 41 is fixed on the bottom surface of the right vertical plate, a vertical guide rail 42 is fixed on the right side wall of the right vertical plate, a lifting cylinder 22 is fixed on the top surface of the upper horizontal fixing plate 40, the bottom end of the push rod of the lifting cylinder 22 extends out of the bottom surface of the upper horizontal fixing plate 40 and is fixed with an adjustment block 28, a horizontal lifting beam 23 is fixed on the right side wall of the adjustment block 28, the bottom surface of the adjustment block 28 is located directly above the lower horizontal fixing plate 41, a torque motor 24 is fixed on the right end of the horizontal lifting beam 23, and a nut torque head 25 is fixed on the output shaft at the bottom of the torque motor 24;

[0016] A horizontal placement rack 30 is placed on the middle top surface of the horizontal fixing plate 11, and an aluminum alloy part 31 to be tested is fixed in the middle of the top surface of the horizontal placement rack 30. A nut is screwed on the aluminum alloy part 31, and the nut torque head 25 corresponds to the nut up and down.

[0017] Furthermore, a vertical guide groove is formed in the middle of the left side wall of the adjustment block 28, which is a dovetail-shaped groove, and the vertical guide rail 42 is inserted into the vertical guide groove and matched with the vertical guide groove.

[0018] Furthermore, a lower bending frame 231 is fixed to the right bottom surface of the horizontal lifting beam 23 , and the output shaft at the bottom of the torque motor 24 is inserted into the guide through hole of the horizontal plate portion of the lower bending frame 231 .

[0019] When the present embodiment is used, the horizontal placement frame 30 is first placed on the middle top surface of the horizontal fixing plate 11, so that the nut torque head 25 is directly above the nut screwed on the aluminum alloy part 31, and then the lifting block 21 is lowered by manually rotating the rotating wheel 271, so that the bottom of the nut torque head 25 is close to the nut;

[0020] Then, the torque motor 24 is rotated by the push rod of the lifting cylinder 22, so that the nut is inserted into the bottom of the nut torque head 25, and the detection can be carried out. The torque motor 24 is connected to the controller fixed on the frame 10 through an electrical connection line. A screen is fixed on the controller (the controller and other equipment are all conventional structures and are not described in detail here). The torque can be displayed on the screen, so that the tightening condition of the nut can be understood and the detection can be realized. After completion, the torque motor 24 stops running, and the push rod of the lifting cylinder 22 retracts to complete the detection. The detection effect is good and the degree of automation is high.

[0021] After completion, the horizontal placement rack 30 is moved so that the other nuts of the aluminum alloy part 31 to be tested are located below the nut torque head 25 for testing, and the testing is effective and efficient.

[0022] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. A nut tightening torque strength detection device, comprising a frame (10), characterized in that: A horizontal fixing plate (11) is fixed to the top surface of the top plate of the frame (10), a lifting mechanism (20) is fixed to the left top surface of the horizontal fixing plate (11), a right vertical plate is fixed to the right side wall of the lifting block (21) of the lifting mechanism (20), a lifting cylinder (22) is fixed to the upper part of the right vertical plate, a horizontal lifting beam (23) is fixed to the bottom end of the push rod of the lifting cylinder (22), a torque motor (24) is fixed to the right end of the horizontal lifting beam (23), and a nut torque head (25) is fixed to the output shaft at the bottom of the torque motor (24); A horizontal placement frame (30) is placed on the middle top surface of the horizontal fixing plate (11), an aluminum alloy part (31) to be tested is fixed in the middle of the top surface of the horizontal placement frame (30), a nut is screwed on the aluminum alloy part (31), and the nut torque head (25) corresponds to the nut up and down.

2. A nut tightening torque strength detection device according to claim 1, characterized in that: The lifting mechanism (20) comprises a vertical support frame (26), the vertical support frame (26) is fixed on the left top surface of the horizontal fixed plate (11), the two ends of the vertical screw rod (27) are movably connected to the upper top plate and the lower bottom plate of the vertical support frame (26) through bearings, the top of the vertical screw rod (27) extends out of the upper top plate and is fixed with a rotating wheel (271), and the lifting block (21) is screwed on the vertical screw rod (27).

3. A nut tightening torque strength detection device according to claim 2, characterized in that: Guide blocks (211) are fixed on both the front and rear sides of the lifting block (21), vertical guide grooves are formed on the front and rear parts of the vertical plate of the vertical support frame (26), and a guide portion is formed on the inner side wall of the guide block (211), and the guide portion is inserted into the corresponding vertical guide groove.

4. A nut tightening torque strength detection device according to claim 1, characterized in that: An upper horizontal fixing plate (40) is fixed on the upper right side wall of the right vertical plate, a lower horizontal fixing plate (41) is fixed on the bottom surface of the right vertical plate, a vertical guide rail (42) is fixed on the right side wall of the right vertical plate, a lifting cylinder (22) is fixed on the top surface of the upper horizontal fixing plate (40), the bottom end of the push rod of the lifting cylinder (22) extends out of the bottom surface of the upper horizontal fixing plate (40) and is fixed with an adjustment block (28), and a horizontal lifting beam (23) is fixed on the right side wall of the adjustment block (28).

5. A nut tightening torque strength detection device according to claim 4, characterized in that: A vertical guide groove is formed in the middle of the left side wall of the adjustment block (28), and a vertical guide rail (42) is inserted into and matched with the vertical guide groove.

6. A nut tightening torque strength detection device according to claim 1, characterized in that: A lower bending frame (231) is fixed to the right bottom surface of the horizontal lifting beam (23), and the output shaft at the bottom of the torque motor (24) is inserted into the guide through hole of the horizontal plate portion of the lower bending frame (231).

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