A locking force tool for improving rivet assembly rate

Abstract

The application relates to the technical field of core-pulling rivet assembly, and particularly discloses a locking force tool for improving rivet assembly rate, which comprises a pressing column and a pressing nut, the central part of the pressing column is provided with a countersunk through hole for arranging a rivet body, and the outer periphery of the pressing column is provided with an external thread; the pressing nut is sequentially provided with a mounting hole and a threaded hole which are connected in communication, the mounting hole is used for allowing a core rod to pass through, and the threaded hole is matched with the external thread of the pressing column. The rivet body is placed in the countersunk through hole of the pressing column in a countersunk direction, the threaded hole of the pressing nut is matched with the external thread of the outer periphery of the pressing column, the pressing nut is assembled on the pressing column to form locking force on the rivet body, the rivet body is integrated with the pressing column, the core rod is fixed, the core rod passes through the mounting hole and is opposite to the rivet body, the pressing column is rotated in the thread direction of the core rod, the core rod is assembled into the rivet body in the pressing column, the pressing nut is screwed out, the pressing column is taken off from the rivet body, the tool is disassembled, and the assembly of the core rod and the rivet body of the core-pulling rivet is completed.

Description

Technical Field

[0001] This utility model relates to the field of blind rivet assembly technology, specifically to a locking force tooling for improving the rivet assembly speed. Background Technology

[0002] Blind rivets, also known as pop rivets or blind rivets, are a common type of fastener widely used in many fields to join two or more materials. They are particularly suitable for single-sided operations, meaning they can only be installed from one side of the workpiece. A blind rivet consists of two parts: a hollow rivet body (usually made of metal) and a core (also called a rivet mandrel) that passes through the center of the rivet body.

[0003] In the manufacturing process of blind rivets, the assembly of the core rod and the rivet body is involved. The existing technology involves drilling a hole at one end of the rivet body, then manually holding the core rod with one hand with needle-nose pliers and the rivet body with the other hand with flat-nose pliers, inserting the shank (headless end) of the core rod into the tail (open end) of the rivet body until the head of the core rod is completely inside the rivet body, thus completing the assembly process of the core rod and the rivet body. The manual assembly of the core rod and the rivet body with hand-held pliers is inefficient and unstable, and it also affects the quality of the final product and the production schedule. Utility Model Content

[0004] The purpose of this utility model is to provide a locking force tooling for improving the assembly speed of rivets, so as to solve the problems of low assembly efficiency and unstable assembly when manually assembling the core rod and rivet body with hand-held clamps, which also affects the quality of the final product and the production schedule.

[0005] To address the above issues, the following technical solution is provided: A locking force tool for improving the assembly speed of rivets includes a clamping column and a clamping nut. The clamping column has a countersunk through hole in the center for placing the rivet body and an external thread on its outer periphery. The clamping nut has a mounting hole and a threaded hole connected in sequence. The mounting hole is for the core rod to pass through, and the threaded hole engages with the external thread of the clamping column.

[0006] The basic principle of the above technical solution is as follows: the nail body is placed into the countersunk through hole of the clamping column in the countersunk direction. The threaded hole of the clamping nut is engaged with the external thread of the clamping column, so that the clamping nut is assembled on the clamping column to form a locking force on the nail body, thereby making the nail body and the clamping column an ​​integral unit. The core rod is fixed and passes through the mounting hole opposite the nail body. The clamping column is rotated in the direction of the core rod's thread to assemble the core rod into the nail body in the clamping column. The clamping nut is unscrewed, and the clamping column is removed from the nail body. The tooling is removed, and the assembly of the core rod and the nail body of the pull rivet is completed.

[0007] The beneficial effects of the above technical solution are as follows: Compared with the existing method of assembling the core rod and nail body by clamping them with clamps, which results in low assembly efficiency and unstable assembly, this technical solution sets up a clamping column and a clamping nut to lock and fix the nail body first. By rotating the clamping column, the nail body is stably screwed onto the core rod, which improves the assembly efficiency of the core rod and nail body, and enables the core rod to be stably assembled into the nail body.

[0008] Furthermore, the clamping post includes a threaded post and a knob post. The diameter of the knob post is larger than that of the threaded post. The external thread is located on the outer circumference of the threaded post, and the outer circumference of the knob post is provided with anti-slip texture. The clamping nut is assembled on the threaded post, and the knob post is convenient for hand-holding when rotating.

[0009] Furthermore, an opening groove is formed on the side of the knob post away from the threaded post. The center of the opening groove communicates with the countersunk through hole, and the diameter of the opening groove is larger than the diameter of the countersunk through hole. The opening groove reduces the material used in the knob post and lightens its weight.

[0010] Furthermore, the threaded post has a tool relief groove on the outer side near the knob post.

[0011] Furthermore, the length of the threaded post is greater than the length of the threaded hole in the clamping nut.

[0012] Furthermore, the outer circumference of the clamping nut is also provided with anti-slip texture. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembly of the clamping column and clamping nut of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the clamping column; Figure 3 This is a cross-sectional structural diagram of a compression nut.

[0014] The reference numerals in the accompanying drawings include: clamping post 1, threaded post 1-1, knob post 1-2, countersunk through hole 1-3, open slot 1-4, tool relief slot 1-5, clamping nut 2, mounting hole 2-1, threaded hole 2-2, core rod 3, and nail body 4. Detailed Implementation

[0015] The following detailed description illustrates the specific implementation method: The basic implementation examples are as follows: Figure 1-3 As shown: A locking force tooling for improving rivet assembly speed, such as Figure 1 As shown, it includes a clamping column 1 and a clamping nut 2, as follows: Figure 2As shown, the clamping post 1 has a countersunk through hole 1-3 in the center for mounting the nail body 4. The diameter of the countersunk through hole 1-3 is 4.3mm. The clamping post 1 includes a threaded post 1-1 and a knob post 1-2. The diameter of the knob post 1-2 is 30mm, and the length of the knob post 1-2 is 6mm. The threaded post 1-1 has threads on its outer circumference. The threads of the threaded post 1-1 are M16×1, and the length of the threaded post 1-1 is 6.5mm. The outer circumference of the knob post 1-2 has anti-slip textures. An opening groove 1-4 is opened on the side of the knob post 1-2 away from the threaded post 1-1. The opening groove 1-4 has a diameter of 30mm and a depth of 4mm. The slot is 1-4 with a diameter of 1 mm. The center of the slot 1-4 is connected to the countersunk through hole 1-3. The threaded post 1-1 has a 1.5 mm long relief groove 1-5 on the outer side near the knob post 1-2. The clamping nut 2 has a connected mounting hole 2-1 and a threaded hole 2-2 in sequence. The outer circumference of the clamping nut 2 is also provided with anti-slip texture. The diameter of the clamping nut 2 is 25 mm and the diameter length of the clamping nut 2 is 7.5 mm. The diameter of the mounting hole 2-1 is 5 mm. The mounting hole 2-1 is used for the core rod 3 to pass through. The threaded hole 2-2 is engaged with the external thread of the clamping post 1. The thread of the threaded hole 2-2 is M16×1.

[0016] The specific implementation process is as follows: The nail body 4 is placed into the countersunk through hole 1-3 of the clamping column 1 with the countersunk head facing in the countersunk direction. The threaded hole 2-2 of the clamping nut 2 engages with the external thread of the clamping column 1, so that the clamping nut 2 is assembled on the clamping column 1, forming a locking force on the nail body 4, thereby making the nail body 4 and the clamping column 1 an integral unit. The core rod 3 is fixed in place, passing through the mounting hole 2-1 and facing the nail body 4. The clamping column 1 is rotated in the thread direction of the core rod 3, so that the core rod 3 is assembled into the nail body 4 in the clamping column 1. The clamping nut 2 is unscrewed, and then the clamping column 1 is removed from the nail body 4. The tooling is removed, and the assembly of the core rod 3 and the nail body 4 of the blind rivet is completed. The clamping column 1 and the clamping nut 2 are set up to lock and fix the nail body 4 first. By rotating the clamping column 1, the nail body 4 is stably screwed onto the core rod 3, which improves the assembly efficiency of the core rod 3 and the nail body 4, so that the core rod 3 can be stably assembled into the nail body 4.

[0017] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A locking force fixture for improving the assembly speed of rivets, characterized in that: It includes a clamping column and a clamping nut. The clamping column has a countersunk through hole in the center for mounting the nail body and an external thread on the outer periphery of the clamping column. The clamping nut has a mounting hole and a threaded hole connected in sequence. The mounting hole is used for the core rod to pass through, and the threaded hole is engaged with the external thread of the clamping column.

2. A locking force fixture for improving rivet assembly speed according to claim 1, characterized in that: The clamping post includes a threaded post and a knob post. The diameter of the knob post is larger than that of the threaded post. The external thread is located on the outer circumference of the threaded post, and the outer circumference of the knob post is provided with anti-slip texture.

3. A locking force fixture for improving rivet assembly speed according to claim 2, characterized in that: The knob post has an opening groove on the side away from the threaded post. The center of the opening groove is connected to the countersunk through hole, and the diameter of the opening groove is larger than the diameter of the countersunk through hole.

4. A locking force fixture for improving rivet assembly speed according to claim 3, characterized in that: The threaded post has a tool relief groove on the outer side near the knob post.

5. A locking force fixture for improving rivet assembly speed according to claim 4, characterized in that: The length of the threaded post is greater than the length of the threaded hole in the clamping nut.

6. A locking force fixture for improving rivet assembly speed according to claim 5, characterized in that: The outer circumference of the clamping nut is also provided with anti-slip texture.

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