Positioning device for screw and nut combination

Abstract

The utility model discloses a screw and nut combined positioning device, which belongs to the technical field of screws and nuts, and comprises a screw structure and a plurality of nut structures which are used for mechanical equipment connection, and the screw structure is in threaded connection with the nut structures. The screw structure is composed of a flange head, a polished rod section and a threaded section, the flange head, the polished rod section and the threaded section are integrally formed in a casting mode, the flange head is fixed to the top end of the polished rod section, and the threaded section is fixed to the bottom end of the polished rod section. A plurality of strip-shaped through grooves are formed in the nut structure; a belleville spring gasket is arranged between every two adjacent nut structures. The polished rod section and the threaded section of the screw structure can penetrate through a hole groove connected with mechanical equipment, then the nut structures and the belleville spring washers are sequentially screwed in, matched use of the screw structure and a plurality of nut structures is completed, gaps between the screw structure and the hole groove are effectively reduced or eliminated, and the accuracy of the installation position of the screw structure is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of screw and nut technology, and more specifically, to a positioning device for a combination of screw and nut. Background Technology

[0002] A nut is a common fastener, typically used in conjunction with a bolt or screw to achieve a mechanical connection through threaded engagement. It is widely used in machinery, building structures, automotive manufacturing, and electronic equipment.

[0003] Currently, screws and nuts are commonly used for installation and fixing in the actual use of mechanical equipment. However, for some cutting and grinding equipment, if there are significant deviations in the position of the screws, it can easily affect the operating accuracy of the cutting and grinding equipment.

[0004] Therefore, in view of this, the existing structure is studied and improved to provide a positioning device consisting of a screw and a nut, in order to achieve a more practical purpose. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the purpose of this utility model is to provide a positioning device for a combination of screws and nuts. It can pass the smooth section and threaded section of the screw structure through the hole groove connected to the mechanical equipment, and then screw in the nut structure and disc spring washer in sequence to complete the cooperation of the screw structure and multiple nut structures. This effectively reduces or eliminates the gap between the screw structure and the hole groove, and ensures the accuracy of the screw structure installation position.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A positioning device for a combination of screws and nuts includes a screw structure and multiple nut structures for connecting mechanical equipment. The screw structure and the nut structures are connected by threads. The screw structure consists of a flange head, a smooth rod section, and a threaded section. The flange head, smooth rod section, and threaded section are integrally cast. The flange head is fixed to the top of the smooth rod section, and the threaded section is fixed to the bottom of the smooth rod section.

[0010] The nut structure is a standard hexagonal structure, and several elongated through slots are provided on the nut structure;

[0011] A disc spring washer is provided between two adjacent nut structures.

[0012] Furthermore, the flange head has an internal groove structure at its end, and the internal groove structure is an internal hexagonal structure.

[0013] Furthermore, the flange head has several teeth on its edge, which are distributed in a ring at equal angles, and the edge of each tooth is chamfered and polished.

[0014] Furthermore, the optical rod segment and the slot provided on the mechanical equipment are in a transition fit.

[0015] Furthermore, the threaded section and the slot provided on the mechanical equipment are in clearance fit.

[0016] Furthermore, each of the elongated through slots is provided in six quantities, and the six elongated through slots are arranged radially.

[0017] Furthermore, the internal thread specifications of the threaded segment and nut structure are M3-M4, the positioning accuracy is ±0.1mm axially, and the material is alloy steel.

[0018] 3. Beneficial effects

[0019] Compared with existing technologies, the advantages of this utility model are:

[0020] This solution involves passing the smooth and threaded sections of a screw structure through the slots of the mechanical equipment. Then, a nut structure is screwed into the threaded section of the screw structure. For each nut structure screwed in, a disc spring washer is fitted in, completing the use of the screw structure and multiple nut structures. This effectively reduces or eliminates the gap between the screw structure and the slot, ensuring the accuracy of the screw structure's installation position. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the screw structure and nut structure after connection in this utility model;

[0022] Figure 2 This is a plan view of the screw structure and nut structure after connection in this utility model;

[0023] Figure 3 This is a schematic diagram of the screw structure and nut structure when they are completely separated in this utility model;

[0024] Figure 4 This is a schematic diagram of the screw structure in this utility model.

[0025] Explanation of the labels in the diagram:

[0026] 1. Screw structure; 101. Flange head; 1011. Internal groove structure; 1012. Toothed edge; 102. Smooth section; 103. Threaded section;

[0027] 2. Nut structure; 201. Long strip through groove;

[0028] 3. Disc spring washer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0030] Example:

[0031] Please see Figure 1 - Figure 4 A positioning device for a combination of screws and nuts includes a screw structure 1 for connecting mechanical equipment and multiple nut structures 2. The screw structure 1 and the nut structures 2 are connected by threads. The screw structure 1 is composed of a flange head 101, a smooth rod section 102, and a threaded section 103. The flange head 101, the smooth rod section 102, and the threaded section 103 are integrally cast. The flange head 101 is fixed to the top end of the smooth rod section 102, and the threaded section 103 is fixed to the bottom end of the smooth rod section 102.

[0032] Nut structure 2 is a standard hexagonal structure, and several elongated through slots 201 are provided on nut structure 2;

[0033] A disc spring washer 3 is provided between two adjacent nut structures 2.

[0034] See Figure 1 Specifically, the flange head 101 has an internal groove structure 1011 at its end, and the internal groove structure 1011 is an internal hexagonal structure.

[0035] The addition of an internal groove structure 1011 allows for convenient control of the rotation of the flange head 101 using tools.

[0036] See Figure 1 , Figure 3 Specifically, the flange head 101 has several teeth 1012 on its edge, which are distributed in a ring at equal angles, and the edge of each tooth 1012 is chamfered and polished.

[0037] When the screw structure 1 is screwed into the equipment, the tooth 1012 position can be sealed with glue as needed to enhance the stability of the connection between the screw structure 1 and the equipment.

[0038] See Figure 1 , Figure 3 Specifically, the smooth rod section 102 and the slots provided on the mechanical equipment are in a transition fit.

[0039] By controlling the diameter of the smooth rod section 102 and using a transition fit, the gap between the screw structure 1 and the hole groove can be effectively reduced or avoided, and the installation deviation can be effectively reduced when the mechanical equipment is working.

[0040] Specifically, the threaded section 103 and the slot provided on the mechanical equipment are in clearance fit.

[0041] By controlling the diameters of the smooth rod section 102 and the threaded section 103, and by using a transition fit between the smooth rod section 102 and the slot, and a clearance fit between the threaded section 103 and the slot, the screw structure 1 can effectively pass through the slot. At the same time, the clearance between the screw structure 1 and the slot can be effectively reduced or avoided. This can effectively reduce installation deviations when the mechanical equipment is working.

[0042] See Figure 1 , Figure 3 Specifically, there are six of each elongated through-slot 201, and the six elongated through-slots 201 are arranged radially.

[0043] See Figure 1 , Figure 3 , Figure 4 Specifically, the internal thread specifications of threaded section 103 and nut structure 2 are M3-M4, the positioning accuracy is ±0.1mm axially, and the material is alloy steel.

[0044] Threaded section 103 and nut structure 2 are suitable for high-load applications.

[0045] Working principle:

[0046] The device mainly consists of a screw structure 1 and multiple nut structures 2. The smooth section 102 and the threaded section 103 of the screw structure 1 pass through the slots of the mechanical equipment connection. The smooth section 102 and the slot have a transition fit, while the threaded section 103 and the slot have a clearance fit. Then, the nut structure 2 is screwed into the threaded section 103 of the screw structure 1. For each nut structure 2 screwed in, a disc spring washer 3 is fitted in. This completes the use of the screw structure 1 and the multiple nut structures 2. The connection between the screw structure 1 and the multiple nut structures 2 effectively reduces or eliminates the gap between the screw structure 1 and the slot, ensuring the accuracy of the screw structure 1's installation position.

[0047] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A positioning device of a screw and nut combination, comprising a screw structure (1) for mechanical equipment connection and a plurality of nut structures (2), the screw structure (1) and the nut structure (2) being threadedly connected, characterized in that: Said screw structure (1) is composed of flange head (101), polished rod section (102), threaded section (103), flange head (101), polished rod section (102), threaded section (103) are integrally cast, flange head (101) is fixed on the top end of polished rod section (102), threaded section (103) is fixed on the bottom end of polished rod section (102); The nut structure (2) is a standard hexagonal structure, and a plurality of long slot (201) is formed on the nut structure (2); Adjacent two nut structure (2) is provided with disc spring washer (3).

2. A screw and nut combination locator device as claimed in claim 1 wherein: The end of the flange head (101) is provided with an inner clamping groove structure (1011), and the inner clamping groove structure (1011) is an inner hexagonal structure.

3. A screw and nut combination positioning device according to claim 1 wherein: The edge of the flange head (101) is provided with a plurality of tooth opening (1012), a plurality of tooth opening (1012) is annular equiangular distribution, and the edge of each tooth opening (1012) is chamfered and polished.

4. A screw and nut combination positioning device according to claim 1 wherein: The polished rod section (102) and the hole groove arranged on the mechanical equipment are transition fit.

5. A screw and nut combination positioning device according to claim 1 wherein: The threaded section (103) and the hole groove arranged on the mechanical equipment are gap fit.

6. A screw and nut combination positioning device according to claim 1 wherein: The number of each long slot (201) is six, and the six long slots (201) are distributed in a radial manner.

7. A screw and nut combination positioning device according to claim 1 wherein: The thread specification of the inner thread of the threaded section (103) and the nut structure (2) is M3-M4, the positioning accuracy is axial ±0.1mm, and the material is alloy steel.

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