Nut detection machine for detecting qualification of iron piece nut

Abstract

The utility model relates to the technical field of nut detection, in particular to a nut detection machine for detecting whether an iron nut is qualified or not. The relay and the forward and reverse rotation controller are fixed on the bottom plate and connected through a wire, the relay is connected with a driving assembly for driving a go gauge through a wire, the forward and reverse rotation controller controls forward and reverse rotation of the driving assembly, automatic inspection of a nut is achieved, and the inspected nut is separated from the go gauge. The method comprises the following steps: selecting a go gauge for correspondingly detecting the size of a nut, fixing the go gauge at the end part of a three-jaw chuck, then keeping the finished nut fit with the end part of the go gauge, controlling a driving assembly to drive the go gauge to rotate through a forward and reverse rotation controller and a relay, screwing the nut into the go gauge, and determining that the nut is qualified when the go gauge rotates reversely and the nut completely exits from the go gauge. Therefore, the detection efficiency of the nut is improved, and the hand strain of an inspector is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of nut detection, and more specifically to a nut detection machine for detecting the qualification of iron nuts. Background Art

[0002] A nut qualification detection machine is a device used to detect whether nuts meet quality standards and requirements. It usually combines a variety of technologies and methods for detection to ensure that the size, performance, and function of the nuts meet the predetermined specifications.

[0003] Previously, the inspection method was that the inspector held a go gauge and manually screwed each iron nut into and out of the go gauge smoothly and completely, and could not screw it into the no-go gauge, so as to check whether the thread of the nut was qualified. The number of iron nuts to be inspected in each batch was thousands, the efficiency of manual inspection was low, and the inspector was prone to fatigue and finger injuries, which was not convenient to use.

[0004] In view of this, the utility model provides a nut detection machine for detecting the qualification of iron nuts. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the above-mentioned disadvantages and provide a nut detection machine for semi-automatically inspecting the qualification of nuts.

[0006] According to the use requirements, a go gauge corresponding to the size of the detected nut is selected and fixed at the end of the three-jaw chuck. Then, the finished nut is kept in contact with the end of the go gauge. The driving component is driven to rotate by the forward and reverse controller and the relay, and the nut is screwed onto the go gauge. When the go gauge rotates in the reverse direction and the nut completely exits the go gauge, the nut is qualified; otherwise, it is unqualified, so as to improve the detection efficiency of the nut and reduce the hand strain of the inspector.

[0007] Therefore, the utility model provides a nut detection machine for detecting the qualification of iron nuts, including a bottom plate, a relay and a forward and reverse controller fixed on the bottom plate and connected by wires. The relay is connected to the driving component for driving the go gauge through wires. The forward and reverse controller controls the forward and reverse rotation of the driving component to realize the automatic inspection of the nut and separate the inspected nut from the go gauge.

[0008] As a further improvement of this technical solution, the driving component includes a motor and a belt. The motor is fixed on the bottom plate, and the output shaft of the motor drives the belt and the rotating shaft to rotate.

[0009] As a further improvement of this technical solution, the rotating shaft is rotatably connected to a fixing frame fixed on the bottom plate, and the fixing frame is used to keep the rotating shaft stable during rotation.

[0010] As a further improvement of the technical solution, the through gauge consists of a screw part, a connecting part and a clamping part, the screw part, the connecting part and the clamping part are coaxially connected, and the screw part is fixedly connected to a baffle whose diameter is larger than that of the screw part.

[0011] As a further improvement of the technical solution, the belt and the fixing frame are covered with a transparent cover, a box body for placing gauges of various sizes and types is provided next to the transparent cover, and the clamping part is clamped and fixed by a three-jaw chuck at the end of the rotating shaft.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the nut testing machine for testing qualified iron nuts, a through gauge corresponding to the size of the nut to be tested is selected according to the use requirements, and the through gauge is fixed to the end of the three-jaw chuck. Then, the finished nut is kept in contact with the end of the through gauge, and the through gauge is driven to rotate by the forward and reverse controller and the relay to control the drive assembly. The nut is screwed into the through gauge, and when the through gauge rotates in the opposite direction, the nut completely exits the through gauge. In this case, the nut is qualified, otherwise it is unqualified, thereby improving the inspection efficiency of the nuts and reducing the hand strain of the inspector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is described in more detail below by way of example with reference to the accompanying drawings, in which:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cutaway top view of the transparent cover of the utility model;

[0017] Figure 3 It is a schematic diagram of the general structure of the utility model.

[0018] The meaning of each number in the figure is:

[0019] 100, bottom plate; 101, relay; 102, forward and reverse controller; 103, transparent cover; 104, box body; 105, fixing bracket; 106, three-jaw chuck;

[0020] 200, driving assembly; 201, motor; 202, belt; 203, rotating shaft;

[0021] 300, through gauge; 301, screw rod part; 302, connecting part; 303, clamping part; 304, baffle. DETAILED DESCRIPTION

[0022] Previously, the inspection method was for the inspector to hold a through gauge and manually screw the iron nuts in and out one by one, and to check whether the threads of the nuts were qualified. There are tens of thousands of iron nuts to be inspected in each batch, and manual inspection is inefficient, and the inspector is prone to fatigue and finger injuries, which makes it inconvenient to use.

[0023] like Figures 1-3 As shown, the device includes a base plate 100, and a relay 101 and a forward and reverse controller 102 fixed on the base plate 100 and connected by wires. The relay 101 is connected to a driving component 200 that drives the through gauge 300 through a wire. The forward and reverse controller 102 controls the forward and reverse rotation of the driving component 200 to realize automatic inspection of the nut, and separate the inspected nut from the through gauge 300. According to the use requirements, a through gauge 300 corresponding to the size of the nut to be inspected is selected, and the through gauge 300 is fixed to the end of the three-jaw chuck 106. Then, the finished nut is kept in contact with the end of the through gauge 300. The forward and reverse controller 102 and the relay 101 control the driving component 200 to drive the through gauge 300 to rotate, and the nut is screwed into the through gauge 300. When the through gauge 300 rotates in the opposite direction, the nut completely withdraws from the through gauge 300, then the nut is qualified, otherwise it is unqualified, thereby improving the inspection efficiency of the nut and reducing the hand strain of the inspector.

[0024] First, the specific structure of the drive component 200 is disclosed. The drive component 200 includes a motor 201 and a belt 202. The motor 201 is fixed on the base plate 100. When testing the finished nut, the finished nut is kept in contact with the screw part 301, and then the motor 201 is started. The output shaft of the motor 201 drives the belt 202 and the rotating shaft 203 to rotate. Since the rotating shaft 203 is connected to the fixed frame 105 fixed on the base plate 100, when the rotating shaft 203 rotates, the fixed frame 105 is used to keep the rotating shaft 203 stable during rotation, and clamping plates are provided at both ends of the fixed frame 105 to limit the left and right shaking of the rotating shaft 203. The finished nut is screwed into the through gauge 300, and the forward and reverse rotation of the output shaft of the motor 201 is controlled by the relay 101 and the forward and reverse controller 102. If the nut just exits the through gauge 300 after the through gauge 300 is reversed, it is proved that the finished nut meets the processing requirements, that is, it is a qualified product, otherwise it is unqualified.

[0025] Secondly, as mentioned above, the go gauge 300 is used to check whether the finished nut is qualified or not, so the specific structure of the go gauge 300 is disclosed. The go gauge 300 is composed of a screw rod portion 301, a connecting portion 302 and a clamping portion 303. The screw rod portion 301, the connecting portion 302 and the clamping portion 303 are coaxially connected. When testing finished nuts of different sizes, a wrench is used to open the three-jaw chuck 106, and a screw rod portion 301 matching the size of the test nut is selected from the box body 104. Then, the go gauge 300 of the corresponding size is inserted into the box body 104. The clamping portion 303 at the end of the gauge 300 is fixed to the three-jaw chuck 106. When the screw portion 301 rotates, the test nut is just screwed into the screw portion 301, and the test nut is against the baffle 304 whose diameter is larger than the screw portion 301. At this time, the forward and reverse controller 102 controls the motor 201 to rotate in the opposite direction. If the nut just exits the screw portion 301, it proves that the test nut meets the requirements. If the nut is not completely withdrawn, it proves that the nut does not meet the processing requirements, that is, it is unqualified, thereby improving the efficiency of the test and facilitating use.

[0026] Furthermore, in order to avoid injury to the inspector during the rotation of the motor 201 and the belt 202, a transparent cover 103 is provided on the outside of the belt 202 and the fixing frame 105 to protect the inspector and also to prevent dust. A box body 104 for placing various sizes of go gauges 300 is provided next to the transparent cover 103, which is convenient for taking out and replacing at any time according to the test requirements.

[0027] In summary, the working principle of the present invention is as follows: first, when testing finished nuts of different sizes, use a wrench to open the three-jaw chuck 106, select a screw rod portion 301 that matches the size of the test nut from the box body 104, and then fix the clamping portion 303 at the end of the through gauge 300 of the corresponding size to the three-jaw chuck 106, and keep the finished nut in contact with the screw rod portion 301, and then start the motor 201, the output shaft of the motor 201 drives the belt 202 and the rotating shaft 203 to rotate, and since the rotating shaft 203 is connected to the fixed frame 105 fixed on the base plate 100, the rotating shaft 203 is rotated. When the shaft 203 rotates, the fixing frame 105 is used to keep the shaft 203 stable during rotation, and both ends of the fixing frame 105 are provided with clamping plates for limiting the left and right shaking of the shaft 203. The test nut is just screwed into the screw part 301, and the test nut is against the baffle 304 whose diameter is larger than the screw part 301. At this time, the forward and reverse controller 102 controls the motor 201 to rotate in the opposite direction. If the nut just exits the screw part 301, it proves that the test nut meets the requirements. If the nut is not completely withdrawn, it proves that the nut does not meet the processing requirements, that is, it is unqualified, thereby improving the efficiency of the test and reducing the fatigue of the inspector.

[0028] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the descriptions in the specification are only preferred examples of the present utility model, which are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A nut inspection machine for inspecting qualified iron nuts, comprising a base plate (100), and a relay (101) and a forward and reverse controller (102) fixed on the base plate (100) and connected by wires, characterized in that: The relay (101) is connected to a driving component (200) for driving a through gauge (300) via a wire, and the forward and reverse rotation controller (102) controls the forward and reverse rotation of the driving component (200) to achieve automatic inspection of the nut and to separate the inspected nut from the through gauge (300).

2. The nut inspection machine for inspecting qualified iron nuts as claimed in claim 1, characterized in that: The driving assembly (200) comprises a motor (201) and a belt (202); the motor (201) is fixed on the bottom plate (100), and the output shaft of the motor (201) drives the belt (202) and the rotating shaft (203) to rotate.

3. The nut inspection machine for inspecting qualified iron nuts as claimed in claim 2, characterized in that: The rotating shaft (203) is rotatably connected to a fixing frame (105) fixed on the bottom plate (100), and the fixing frame (105) is used to maintain the stability of the rotating shaft (203) during rotation.

4. The nut inspection machine for inspecting qualified iron nuts as claimed in claim 2, characterized in that: The go gauge (300) is composed of a screw rod portion (301), a connecting portion (302) and a clamping portion (303); the screw rod portion (301), the connecting portion (302) and the clamping portion (303) are coaxially connected; the screw rod portion (301) is fixedly connected to a baffle (304) having a diameter larger than that of the screw rod portion (301).

5. The nut inspection machine for inspecting qualified iron nuts as claimed in claim 4, characterized in that: The belt (202) and the fixing frame (105) are covered with a transparent cover (103) on the outside, and a box body (104) for placing various sizes of universal gauges (300) is provided next to the transparent cover (103), and the clamping portion (303) is clamped and fixed by a three-jaw chuck (106) at the end of the rotating shaft (203).

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