Novel spin riveting machine chuck mechanism

Abstract

The utility model discloses a novel chuck mechanism of a spin riveting machine, and relates to the technical field of spin riveting machine machining. According to the technical scheme, the novel chuck mechanism of the spin riveting machine comprises a connecting part and is characterized in that a clamping part is installed below the connecting part, and a chuck is installed below the clamping part; the clamping part comprises a shell, the shell is fixedly connected with the connecting part and used for protecting the internal structure of the clamping part, a rotating ring is rotationally installed below the shell, a first transmission block is installed on the inner side of the rotating ring, a second transmission block is slidably connected to the inner surface of the first transmission block, and an abutting block is installed below the second transmission block and used for clamping the chuck. A fixing frame is installed on the inner surface of the shell. The utility model aims to provide a novel chuck mechanism of a spin riveting machine, which achieves the effects of carrying out secondary fixation on a chuck and keeping an inclination angle without deviation.

Description

Technical Field

[0001] The utility model discloses a novel chuck mechanism of a rotary riveting machine, and relates to the technical field of rotary riveting machine processing. Background Art

[0002] A riveting machine is a type of equipment used for automated riveting, widely used in automotive, aerospace, appliance, and other industrial sectors. It secures the rivet to the workpiece by rotating the rivet head and applying pressure, creating a secure connection. The chuck is a key component of the riveting machine, enabling the riveting operation. The rotating chuck generates frictional heat, which secures the rivet to the workpiece.

[0003] The chuck of the riveting machine will have a certain tilt angle when installed, so as to better perform the riveting operation on the workpiece. When the workpiece is being riveted, the tilted chuck may fall off during high-speed rotation, or the pressure may cause it to deviate from the original tilt angle, resulting in inaccurate processing accuracy and even affecting the processing safety of the operator. Therefore, it is necessary to provide a new type of chuck mechanism for the riveting machine to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a novel chuck mechanism for a rotary riveting machine, which can achieve the effect of performing secondary fixation on the chuck and keeping the tilt angle from deviating.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel chuck mechanism of a rotary riveting machine, comprising a connecting part, characterized in that: a clamping part is installed below the connecting part, and a chuck is installed below the clamping part; the clamping part comprises an outer shell, which is fixedly connected to the connecting part for protecting the internal structure of the clamping part, a swivel is rotatably installed below the outer shell, a first transmission block is installed on the inside of the swivel, a second transmission block is slidably connected to the inner surface of the first transmission block, an interference block is installed below the second transmission block for clamping the chuck, and a fixing frame is installed on the inner surface of the outer shell.

[0006] Preferably, the chuck is provided with a certain inclination angle.

[0007] Preferably, a driving mechanism is provided in the connecting portion for driving the chuck to rotate.

[0008] Preferably, the inner surface of the swivel is provided with an internal thread, the connection between the first transmission block and the swivel is provided with an external thread, and the inner surface of the first transmission block is an inclined surface.

[0009] Preferably, a spring is installed on the outer surface of the fixing frame, the other end of the spring is fixedly connected to the second transmission block, and the second transmission block is slidably connected to the fixing frame.

[0010] Preferably, the interference blocks and the second transmission blocks are provided in several groups, and the number of the first transmission blocks corresponds to the number of the second transmission blocks.

[0011] Preferably, both upper and lower ends of the first transmission block are provided with limiting protrusions for limiting the up and down movement distance of the swivel.

[0012] Preferably, a universal ball is installed on the inner side of the interference block, the universal ball interferes with the outer surface of the chuck, and an annular groove is provided at the connection between the universal ball and the chuck.

[0013] Compared with the prior art, the beneficial effects of the present invention are: by the operator rotating the swivel, the first transmission block moves downward, squeezing the second transmission block to make it move inward, and at the same time driving several groups of interference blocks to tightly contact the outer surface of the chuck, completing the secondary clamping of the chuck that has been preliminarily fixed in the connection part by the operator. At the same time, the setting of the universal ball and the ring groove makes the structure more stable while ensuring that the angle of the chuck is not offset during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of a new type of chuck mechanism of a rotary riveting machine;

[0015] Figure 2 for Figure 1 A schematic diagram of the clamping part of a new type of chuck mechanism of a rotary riveting machine;

[0016] Among them, the reference numerals in the figures are:

[0017] 1. Connecting part; 2. Clamping part; 21. Housing; 22. Swivel; 23. Fixing frame; 24. First transmission block; 241. Limiting protrusion; 242. External thread; 25. Interference block; 251. Second transmission block; 252. Universal ball; 26. Spring; 3. Chuck; 31. Ring groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Specific implementation cases:

[0020] like Figure 1 As shown, a new type of chuck mechanism for a rotary riveting machine includes a connecting portion 1 for connecting to a rotary riveting machine (not shown in the figure), a clamping portion 2 is installed below the connecting portion 1, and a chuck 3 is installed below the clamping portion 2. The chuck 3 is set at a certain inclination angle;

[0021] The function of the clamping part 2 is to perform secondary clamping on the chuck 3. The chuck 3 is installed in the connecting part 1. The chuck 3 is installed in the connecting part 1 at an angle.

[0022] The connecting portion 1 is provided with a driving mechanism (not shown in the figure) for driving the chuck 3 to rotate;

[0023] like Figure 2 As shown, the clamping part 2 includes a shell 21, which is fixedly connected to the connecting part 1 for protecting the internal structure of the clamping part 2, a swivel 22 is rotatably installed below the shell 21, and the inner surface of the swivel 22 is provided with an internal thread (not marked in the figure), and a first transmission block 24 is installed on the inner side of the swivel 22, and an external thread 242 is provided at the connection between the first transmission block 24 and the swivel 22. The inner surface of the first transmission block 24 is an inclined surface, and a second transmission block 251 is slidably connected to the inner surface of the first transmission block 24, and an interference block 25 is installed below the second transmission block 251 for clamping the chuck 3, a fixing frame 23 is installed on the inner surface of the shell 21, and a spring 26 is installed on the outer surface of the fixing frame 23, and the other end of the spring 26 is fixedly connected to the second transmission block 251, and the second transmission block 251 is slidably connected to the fixing frame 23;

[0024] This structure has an initial state. In the initial state, the switch is in contact with the limiting protrusion 241 below the first transmission block 24, and the spring 26 is in an extended state. The lower tip of the first transmission block 24 contacts the upper inclined surface of the second transmission block 251, and the contact block 25 opens outward.

[0025] When the clamping part 2 performs the secondary clamping work on the chuck 3, the operator now installs the chuck 3 into the connecting part 1 to preliminarily fix the chuck 3, and then the operator rotates the swivel 22. The swivel 22 is provided with an anti-slip rubber sleeve (not shown in the figure) to facilitate the operator to rotate it, so that the first transmission block 24 moves downward along the inclined surface of the second transmission block 251 according to the thread direction. Because the position of the swivel 22 is fixed, the first transmission block 24 will squeeze the second transmission block 2511 inward, so that the interference block 25 moves toward the central axis direction of the chuck 3 until it contacts it. The interference block 25 and the second transmission block 251 are provided with several groups, and the number of the first transmission blocks 24 corresponds to the number of the second transmission blocks 251. Therefore, rotating the swivel 22 can simultaneously control multiple groups of interference blocks 25 to move toward the central axis direction of the chuck 3 and the movement distances are all equal. This process is the clamping process;

[0026] A universal ball 252 is installed inside the abutment block 25 , and the universal ball 252 abuts against the outer surface of the chuck 3 . An annular groove 31 is provided at the connection between the universal ball 252 and the chuck 3 .

[0027] When the chuck 3 starts working, it may rotate slightly. In order to ensure the stability of the structure and better clamping effect, the universal ball 252 on the interference block 25 and the annular groove 31 on the chuck 3 can ensure that even when the chuck 3 rotates slightly, it will not affect the rotation of the interference block 25. As a result, the second transmission block 251 is fixed in the clamping state, making the structure more stable and ensuring that the angle of the chuck 3 is not offset during operation.

[0028] The first transmission block 24 is provided with limit protrusions 241 at both ends thereof for limiting the up and down movement distance of the rotating ring 22;

[0029] The setting of the limiting protrusion 241 enables the swivel 22 to move only within the range limited by the limiting protrusion 241, and also sets the movement range of the first transmission block 24, thereby protecting the stability of the structure while limiting the variable clamping range of the structure;

[0030] To sum up, by the operator rotating the swivel 22, the first transmission block 24 moves downward, squeezing the second transmission block 251 to move inward, and at the same time driving several groups of interference blocks 25 to tightly contact the outer surface of the chuck 3, completing the secondary clamping of the chuck 3 that has been preliminarily fixed in the connecting part 1 by the operator. At the same time, the setting of the universal ball 252 and the annular groove 31 makes the structure more stable while ensuring that the angle of the chuck 3 is not offset during operation.

[0031] The above description is merely a preferred embodiment of the present application. The scope of protection of the present application is not limited to the above embodiment. All technical solutions based on this concept fall within the scope of protection of the present application. It should be noted that for those skilled in the art, improvements and modifications that do not depart from the principles of the present application should also be considered within the scope of protection of the present application.

Claims

1. A novel chuck mechanism for a rotary riveting machine, comprising a connecting portion (1), characterized in that: A clamping portion (2) is installed below the connecting portion (1), and a clamping head (3) is installed below the clamping portion (2); The clamping portion (2) comprises a shell (21), the shell (21) being fixedly connected to the connecting portion (1) for protecting the internal structure of the clamping portion (2), a swivel (22) being rotatably mounted below the shell (21), a first transmission block (24) being mounted inside the swivel (22), a second transmission block (251) being slidably connected to the inner surface of the first transmission block (24), a resisting block (25) being mounted below the second transmission block (251) for clamping the chuck (3), and a fixing frame (23) being mounted on the inner surface of the shell (21).

2. A novel chuck mechanism for a riveting machine according to claim 1, characterized in that: The clamping head (3) is provided with a certain inclination angle.

3. A novel chuck mechanism for a riveting machine according to claim 1, characterized in that: A driving mechanism is provided in the connecting portion (1) for driving the clamping head (3) to rotate.

4. A novel chuck mechanism for a riveting machine according to claim 1, characterized in that: The inner surface of the rotating ring (22) is provided with an internal thread, and the connection between the first transmission block (24) and the rotating ring (22) is provided with an external thread (242), and the inner surface of the first transmission block (24) is an inclined surface.

5. The novel chuck mechanism of a riveting machine according to claim 1 is characterized in that: A spring (26) is installed on the outer surface of the fixing frame (23), and the other end of the spring (26) is fixedly connected to the second transmission block (251), and the second transmission block (251) is slidably connected to the fixing frame (23).

6. A novel chuck mechanism for a riveting machine according to claim 1, characterized in that: The said conflicting blocks (25) and the second transmission blocks (251) are provided in a plurality of groups, and the number of the said first transmission blocks (24) corresponds to the number of the said second transmission blocks (251).

7. The novel chuck mechanism of a riveting machine according to claim 1 is characterized in that: Limiting protrusions (241) are provided at both upper and lower ends of the first transmission block (24) for limiting the up and down movement distance of the rotating ring (22).

8. The novel chuck mechanism of a riveting machine according to claim 1 is characterized in that: A universal ball (252) is installed inside the abutment block (25), and the universal ball (252) abuts against the outer surface of the chuck (3). An annular groove (31) is provided at the connection between the universal ball (252) and the chuck (3).

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