A stud assembly jig

Abstract

The utility model relates to the technical field of clamp, and disclose a kind of stud assembly fixture, including clamping mechanism, feeding mechanism;The feeding mechanism includes feeding table, H-shaped column material bin, limit guide block, limit space and drive displacement component.Adopt this structure, through the H-shaped column material bin and drive displacement component of feeding mechanism, the continuous stable feeding of stud is realized, replaces artificial feeding, improves assembly efficiency, reduces labor intensity;And compared with the additional feeding equipment of prior art, through the detachable connection of H-shaped column material bin and feeding table, different specifications of material bin can be replaced to adapt to stud of different length, screw diameter, without replacing complete fixture, reduce production cost, and relatively smaller volume, improve the flexibility of adaptation;At the same time, the limit space formed by limit guide block and material bin top wall can limit stud boss, prevent stud from falling or deviating.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a stud assembly fixture. Background Technology

[0002] In the production processes of machinery manufacturing, automotive parts, and electronic equipment, stud assembly is one of the core processes ensuring product structural stability. As a core auxiliary equipment for stud assembly, the degree of automation of the fixture directly determines production efficiency. Currently, traditional stud assembly fixtures on the market generally suffer from the following problems: First, most small and medium-sized enterprises still manually hold the studs one by one and place them on the clamping station of the fixture, which then completes the positioning and clamping. They cannot independently complete stud loading, and manual loading is inefficient and labor-intensive. Second, some companies pursuing automation need to purchase additional independent loading equipment such as vibratory feeders and conveyor belts to achieve semi-automatic loading in conjunction with traditional fixtures. This type of equipment is not only expensive but also bulky, and different sizes of studs require separate loading equipment. Utility Model Content

[0003] This utility model mainly provides a stud assembly fixture, which solves the problems of low material loading efficiency and high labor intensity caused by the existing technology of manually holding studs one by one and placing them on the clamping station of the fixture, and then the fixture completing the positioning and clamping; as well as the high investment and large size of additional independent material loading equipment such as vibratory feeders and conveyor belts.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A stud assembly fixture includes a clamping mechanism detachably connected to an external displacement mechanism and a feeding mechanism. The feeding mechanism includes a feeding platform with a U-shaped stud hopper detachably connected to it. Limiting guide blocks are symmetrically arranged within the U-shaped stud hopper, forming a limiting space with the top wall of the U-shaped stud hopper. A driving displacement assembly is provided on the feeding platform for limiting and moving the studs out of the U-shaped stud hopper. The external displacement mechanism refers to any structure capable of detachably connecting to and moving the clamping mechanism, such as a multi-axis gantry, a multi-axis displacement module frame, or a multi-axis robotic arm. It is not a primary component of this fixture but only serves to move the clamping mechanism. The clamping mechanism can be any existing technology, as long as it can stably clamp the stud, such as a pneumatic cylinder gripper or a servo-driven electric gripper. The U-shaped column hopper can be detachably connected to the loading platform using any existing method, as long as it allows for disassembly and assembly, such as plug-in or snap-fit. It also includes a controller, primarily used to receive a signal from the position detection sensor that the stud has reached its position, then activate the displacement assembly to move the stud and control the clamping mechanism to hold the stud. This controller could be a PLC programmable logic controller or a microcontroller. In use, select the corresponding U-shaped stud hopper according to the stud model, then load a certain number of studs into the U-shaped stud hopper, ensuring the stud protrusions are positioned in the limiting space. The symmetrically arranged limiting guide blocks within the U-shaped stud hopper then constrain the studs, achieving an orderly arrangement. Next, install the U-shaped stud hopper containing the studs onto the loading platform, with the opening of the U-shaped stud hopper facing the clamping mechanism. When the clamping mechanism is needed to hold the studs, the displacement component limits the studs closest to the opening of the U-shaped stud hopper and moves them outwards, where they are then clamped by the clamping mechanism in the fixture. Finally, the external displacement mechanism moves the clamping mechanism and studs to the assembly station for complete assembly and reset. Once the studs in the U-shaped stud hopper are used up, simply replace it with a new U-shaped stud hopper containing studs. This structure enables continuous and stable feeding of studs via the U-shaped column hopper and the displacement drive assembly, replacing manual feeding, improving assembly efficiency, and reducing labor intensity. Compared to existing additional feeding equipment, this structure allows for detachable connection between the U-shaped column hopper and the feeding platform, enabling the replacement of hoppers of different specifications to accommodate studs of different lengths and diameters without replacing the entire set of fixtures, thus reducing production costs. Furthermore, its relatively small size enhances adaptability. Simultaneously, the limiting space formed by the limiting guide block and the top wall of the hopper restricts the stud protrusions, preventing the studs from falling or shifting.

[0006] Furthermore, the displacement assembly includes a linear displacement module mounted on the loading platform. A mounting platform is detachably connected to the slide of the linear displacement module. A fixing frame is provided at the front end of the mounting platform, and a vertical guide cavity is provided on the mounting platform corresponding to the rear position of the fixing frame. A drive frame is slidably fitted within the vertical guide cavity. An elastic support is provided between the lower end of the drive frame and the vertical guide cavity, and an upper inclined surface is provided at the upper end of the drive frame to mate with the lower end of a stud. The linear displacement module can be any type of technology that is controllable, as long as it can drive the mounting platform to move, such as a synchronous belt type linear module, a ball screw type linear module, or a screw type linear module. In use, the linear displacement module drives the mounting platform and other components to move linearly. When there are no studs between the fixed frame and the drive frame, they are driven to move backward. The drive frame has an upper inclined surface. When the upper inclined surface contacts the lower end of the stud, the stud's limiting position and the continued movement of the linear displacement module cause it to compress the elastic support downward. When the stud is located between the fixed frame and the drive frame, the drive frame resets through the elastic support and limits the screw. Finally, the linear displacement mechanism drives the fixed frame and the drive frame, and the stud between them to move out of the U-shaped column hopper.

[0007] Furthermore, the elastic support component is a spring. This structure offers advantages such as simple design and stable elasticity, ensuring the drive frame always has a reset capability and adapting to frequent movements.

[0008] Furthermore, both the fixing frame and the driving frame have arc-shaped grooves on their inner surfaces. This structure allows the arc-shaped grooves to fit snugly against the outer wall of the stud, enhancing stability during the limiting process and preventing the stud from sliding during removal.

[0009] Furthermore, a through-hole detection hole is provided on the mounting platform between the fixed frame and the drive frame, and a positioning detection sensor is installed on the mounting platform corresponding to the inner position of the through-hole detection hole. The positioning detection sensor can employ existing technology, as long as it can detect the positioning of the stud and send a detection signal, such as a diffuse reflection photoelectric sensor, an inductive proximity switch, or a fiber optic sensor. With this structure, the positioning detection sensor detects whether the stud is accurately positioned through the through-hole, providing timely feedback to ensure the precise execution of the subsequent linear displacement module's driving displacement action.

[0010] Beneficial effects: The U-shaped column hopper and the displacement drive component of the feeding mechanism enable continuous and stable feeding of studs, replacing manual feeding, improving assembly efficiency, and reducing labor intensity. Compared with existing additional feeding equipment, this structure allows for detachable connection between the U-shaped column hopper and the feeding platform. By changing the hopper of different specifications, it can accommodate studs of different lengths and diameters without replacing the entire set of fixtures, reducing production costs. It is also relatively small in size, improving adaptability. At the same time, the limiting space formed by the limiting guide block and the top wall of the hopper can restrict the stud protrusions and prevent the studs from falling or shifting. Attached Figure Description

[0011] Figure 1 This is a first oblique view of the feeding mechanism in this embodiment;

[0012] Figure 2 This is a second oblique view of the feeding mechanism in this embodiment;

[0013] Figure 3 This is a side view of the feeding mechanism in this embodiment;

[0014] Figure 4 This is an example. Figure 3 Enlarged diagram of A in the middle.

[0015] Reference numerals in the attached drawings: 1. Clamping mechanism; 2. Loading platform; 3. U-shaped column hopper; 4. Limiting guide block; 5. Linear displacement module; 6. Mounting platform; 7. Fixing frame; 8. Vertical guide cavity; 9. Driving frame; 10. Elastic support component; 11. Upper inclined surface; 12. Arc-shaped slot; 13. Through detection hole. Detailed Implementation

[0016] The following will provide a more detailed description of the technical solution of a stud assembly fixture related to this utility model, with reference to the embodiments.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, a stud assembly fixture of this embodiment includes a clamping mechanism 1 detachably connected to an external displacement mechanism and a feeding mechanism; the feeding mechanism includes a feeding platform 2, on which a U-shaped stud hopper 3 is detachably connected, and symmetrically arranged limit guide blocks 4 are arranged inside the U-shaped stud hopper 3. The limit guide blocks 4 and the top wall of the U-shaped stud hopper 3 form a limiting space, and the feeding platform 2 is provided with a driving displacement component for limiting and driving the studs in the U-shaped stud hopper 3 to move out. The displacement assembly includes a linear displacement module 5 mounted on the loading platform 2. A mounting platform 6 is detachably connected to the slide of the linear displacement module 5. A fixing frame 7 is provided at the front end of the mounting platform 6. A vertical guide cavity 8 is provided on the mounting platform 6 corresponding to the rear position of the fixing frame 7. A drive frame 9 is slidably fitted inside the vertical guide cavity 8. An elastic support member 10 is provided between the lower end of the drive frame 9 and the vertical guide cavity 8. An upper inclined surface 11 of the lower end of the drive frame 9 is provided at the upper end of the drive frame 9, corresponding to the lower end of the stud. The elastic support member 10 is a spring. Arc-shaped slots 12 are provided on the inner surfaces of both the fixing frame 7 and the drive frame 9. A through detection hole 13 is provided on the mounting platform 6 corresponding to the position inside the through detection hole 13. A positioning detection sensor is provided on the mounting platform 6 corresponding to the inner position of the through detection hole 13. In use, the corresponding U-shaped stud hopper 3 is selected according to the stud model. A certain number of studs are then placed in the U-shaped stud hopper 3, with the stud protrusions positioned within the limiting space. The limiting guide blocks 4 symmetrically arranged within the U-shaped stud hopper 3 restrict the studs, achieving an orderly arrangement. The U-shaped stud hopper 3 containing the studs is then installed on the loading platform 2, with the opening of the U-shaped stud hopper 3 facing the clamping mechanism 1. When the clamping mechanism 1 needs to clamp the studs... The displacement components, including the linear displacement module 5, mounting platform 6, fixing frame 7, and drive frame 9, limit the studs near the opening of the U-shaped column hopper 3 and move them outward. Finally, the clamping mechanism 1 in the fixture clamps them. Finally, the external displacement mechanism moves the clamping mechanism 1 and the studs to the assembly station to complete the assembly and reset. When the studs in the U-shaped column hopper 3 are used up, a new U-shaped column hopper 3 with studs can be directly replaced. This structure enables continuous and stable feeding of studs via the U-shaped column hopper 3 and the displacement drive assembly, replacing manual feeding, improving assembly efficiency, and reducing labor intensity. Compared to existing additional feeding equipment, this structure allows for detachable connection between the U-shaped column hopper 3 and the feeding platform 2, enabling the replacement of hoppers of different specifications to accommodate studs of different lengths and diameters without replacing the entire set of fixtures, thus reducing production costs. Furthermore, its relatively small size enhances adaptability. Simultaneously, the limiting space formed by the limiting guide block 4 and the top wall of the hopper restricts the stud protrusions, preventing the studs from falling or shifting.

[0019] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge or conventional technology in the field. Therefore, this utility model will not explain the control method and circuit connection in detail.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stud assembly fixture, characterized in that: It includes a clamping mechanism detachably connected to an external displacement mechanism, and a feeding mechanism; the feeding mechanism includes a feeding platform, on which a U-shaped column hopper is detachably connected, and limit guide blocks are symmetrically arranged inside the U-shaped column hopper, the limit guide blocks and the top wall of the U-shaped column hopper forming a limiting space, and a driving displacement component is provided on the feeding platform for limiting and driving the studs in the U-shaped column hopper to move out.

2. The stud assembly fixture according to claim 1, characterized in that: The drive displacement assembly includes a linear displacement module disposed on the loading platform. A mounting platform is detachably connected to the slide of the linear displacement module. A fixing frame is disposed at the front end of the mounting platform. A vertical guide cavity is disposed on the mounting platform corresponding to the rear position of the fixing frame. A drive frame is slidably sleeved in the vertical guide cavity. An elastic support member is disposed between the lower end of the drive frame and the vertical guide cavity. An upper inclined surface of the lower end of the drive frame is disposed at the upper end of the mating stud.

3. A stud assembly fixture according to claim 2, characterized in that: The elastic support component is a spring.

4. A stud assembly fixture according to claim 2, characterized in that: Both the fixed frame and the drive frame have arc-shaped slots on their inner sides.

5. A stud assembly fixture according to claim 2, characterized in that: A through-hole detection hole is provided on the mounting platform between the fixed frame and the drive frame, and a positioning detection sensor is provided on the mounting platform corresponding to the inner position of the through-hole detection hole.

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