Rotary opening and closing clamping device

Abstract

The application discloses a rotary opening and closing clamping device, which comprises a fixed seat (1) and a rotating seat (2) capable of rotating relative to the fixed seat (1), a chuck assembly (3) is connected to the rotating seat (2) and can rotate with the rotating seat (2) to make circular motion on the fixed seat (1), a first driving part (11) and a second driving part (12) are arranged on the fixed seat (1), when the chuck assembly (3) rotates to contact the first driving part (11), the first driving part (11) makes the chuck assembly (3) close, and when the chuck assembly (3) rotates to contact the second driving part (12), the second driving part (12) makes the chuck assembly (3) open. The application has the advantages of simple and compact structure, accurate intermittent opening and closing, small occupied space, low failure rate, high production efficiency and good product quality stability.

Description

Technical Field

[0001] This invention relates to a rotary opening and closing clamping device. Background Technology

[0002] Electromagnetic components are widely used in various fields and are inevitably frequently used in various types of electronic products. The production process of electromagnetic components involves winding coils onto a magnetic ring structure to create a magnetic ring induction coil. However, the winding structures currently available on the market for winding magnetic ring induction coils are quite complex. These structures include a clamping device for holding the wire, which comprises a robotic arm and a cylinder that drives the robotic arm to open and close. During winding, the robotic arm clamps the wire, and a rotating arm rotates the entire clamping device, including the robotic arm and cylinder. Therefore, the opening and closing of the robotic arm and the rotation of the entire clamping device require separate driving forces, resulting in a complex structure, large space occupation, and susceptibility to malfunctions, affecting production efficiency and output quality.

[0003] Therefore, the present invention was developed based on the above-mentioned shortcomings. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a simple and compact rotary opening and closing clamping device. Using this rotary opening and closing clamping device to clamp wires can achieve precise intermittent opening and closing, occupy little space, have a low failure rate, high production efficiency, and good product quality stability.

[0005] This invention is achieved through the following technical solution:

[0006] A rotary opening and closing clamping device includes a fixed base and a rotating base that can rotate relative to the fixed base. A chuck assembly is connected to the rotating base and can follow its rotation to make a circular motion on the fixed base. The fixed base is provided with a first driving part and a second driving part. When the chuck assembly rotates to contact the first driving part, the first driving part causes the chuck assembly to close. When the chuck assembly rotates to contact the second driving part, the second driving part causes the chuck assembly to open.

[0007] The clamp assembly includes a fixed frame connected to a rotating base. The fixed frame is provided with a fixed clamp and a movable rod that can move back and forth relative to the fixed frame. One end of the movable rod is provided with a movable clamp that can cooperate with the fixed clamp, and the other end of the movable rod is provided with a mating part that can contact and cooperate with the first driving part and the second driving part on the fixed base. A return spring that can push the movable rod to return to its original position is also provided between the movable rod and the fixed frame.

[0008] The first driving part is a convex surface provided on the fixed base, and the second driving part is a concave surface provided on the fixed base and in contact with the convex surface.

[0009] A transition surface is provided between the convex and concave surfaces to cooperate with the chuck assembly and put the chuck assembly in a semi-clamped state.

[0010] The mating part is a roller that can roll on the convex and concave surfaces when the chuck assembly rotates;

[0011] The fixed frame includes a connecting seat fixedly connected to the rotating seat. The connecting seat is provided with a front support rod and a rear support rod spaced apart from each other. The front support rod and the rear support rod have an arc-shaped structure. A connecting rod is provided between the front support rod and the rear support rod to connect the two. The fixed clamp is provided on the front support rod. A connecting pipe is connected to the rear support rod. The movable rod passes through the connecting pipe and can move back and forth relative to it.

[0012] Both the fixed seat and the rotating seat are ring-shaped structures, so that the fixed seat and the rotating seat are located on the outside of the clamping assembly after being sleeved on the ring-shaped workpiece.

[0013] Positioning rods can also be installed at intervals on the fixed frame.

[0014] Compared with the prior art, the present invention has the following advantages: When the rotary opening and closing clamping device of the present invention is working, the external power drives the rotating seat to rotate, and the rotating seat carries the clamping assembly to rotate. The clamping assembly makes a circular motion on the fixed seat. When the clamping assembly touches the first driving part on the fixed seat, the first driving part causes the clamping assembly to close and clamp the wire. After the clamping assembly closes and clamps the wire, the clamping assembly continues to rotate. When the clamping assembly rotates to touch the second driving part on the fixed seat, the second driving part causes the clamping assembly to open. At this time, the clamping assembly no longer clamps the wire. At this time, the hooking device of the winding machine can hook the wire and let the wire pass through the ring-shaped workpiece. When the clamping assembly rotates to the position of the first driving part again, the clamping assembly clamps the wire again. Throughout the process, the ring-shaped workpiece is also rotating. This process is repeated, and the wire is neatly wound around the ring-shaped workpiece one circle at a time. The entire rotary opening and closing clamping device has a simple and compact structure. The opening and closing of the chuck assembly is driven by the first and second drive parts on the fixed base. That is, during the rotation of the chuck assembly, it can automatically open or close intermittently, eliminating the need for power mechanisms such as cylinders. The structure is very simple and compact, occupies little space, has a low failure rate, and can ensure high production efficiency and good product quality stability. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention;

[0016] Figure 2 This is one of the perspective views of the chuck assembly of the present invention;

[0017] Figure 3 This is a second perspective view of the chuck assembly of the present invention;

[0018] Figure 4 This is a perspective view of the fixing base of the present invention;

[0019] Figure 5 This is a schematic diagram of the present invention assembled on a winding machine;

[0020] Figure 6 This is a schematic diagram of the present invention during winding. Detailed Implementation

[0021] The present invention will now be further described with reference to the accompanying drawings:

[0022] like Figures 1 to 6 As shown, a rotary opening and closing clamping device includes a fixed base 1 and a rotating base 2 that can rotate relative to the fixed base 1. The fixed base 1 is fixed on a frame 100. The rotating base 2 can be driven by a motor. A chuck assembly 3 is connected to the rotating base 2 and can follow its rotation to make a circular motion on the fixed base 1. The fixed base 1 is provided with a first driving part 11 and a second driving part 12. When the chuck assembly 3 rotates to contact the first driving part 11, the first driving part 11 causes the chuck assembly 3 to close. When the chuck assembly 3 rotates to contact the second driving part 12, the second driving part 12 causes the chuck assembly 3 to open. During operation, an external power source drives the rotating seat 2 to rotate, which in turn rotates the chuck assembly 3. The chuck assembly 3 then performs a circular motion on the fixed seat 1. When the chuck assembly 3 touches the first driving part 11 on the fixed seat 1, the first driving part 11 causes the chuck assembly 3 to close and clamp the wire 200. After the chuck assembly 3 closes and clamps the wire 200, it continues to rotate. When the chuck assembly 3 rotates to touch the second driving part 12 on the fixed seat 1, the second driving part 12 causes the chuck assembly 3 to open. At this point, the chuck assembly... 3. When the wire 200 is no longer clamped, the hooking device 300 of the winding machine can hook the wire and allow it to pass through the annular workpiece 400. When the chuck assembly 3 rotates back to the position of the first drive part 11, the chuck assembly 3 clamps the wire 200 again. Throughout the process, the annular workpiece 400 also rotates continuously (the annular workpiece 400 is clamped and driven to rotate by the front clamping assembly 5 and the rear clamping assembly 4). This process is repeated, and the wire 200 is neatly wound around the annular workpiece 400 one turn at a time. The entire rotating opening and closing clamping device has a simple and compact structure. The opening and closing of the chuck assembly 3 is achieved by the contact between the first drive part 11 and the second drive part 12 on the fixed base 1. That is, during the rotation of the chuck assembly 3, it can automatically achieve intermittent opening or closing, eliminating the need for power mechanisms such as cylinders. The structure is very simple and compact, occupies little space, is energy-saving, has a low failure rate, and can ensure high production efficiency and good product quality stability.

[0023] like Figures 1 to 3As shown, the clamp assembly 3 includes a fixed frame 31 connected to the rotating base 2. The fixed frame 31 is provided with a fixed clamp 32 and a movable rod 33 that can move back and forth relative to the fixed frame 31. One end of the movable rod 33 is provided with a movable clamp 34 that can cooperate with the fixed clamp 32. The other end of the movable rod 33 is provided with a mating part 35 that can contact and cooperate with the first driving part 11 and the second driving part 12 on the fixed base 1. A return spring 36 that can push the movable rod 33 to reset is also provided between the movable rod 33 and the fixed frame 31. The first driving part 11 is a convex surface provided on the fixed base 1, and the second driving part 12 is a concave surface provided on the fixed base 1 and in contact with the convex surface. When the chuck assembly 3 moves with the rotating seat 2 and moves from the concave surface to the convex surface, the convex surface on the fixed seat 1 contacts the mating part 35. The convex surface presses against the mating part 35, causing the moving rod 33 to move relative to the fixed frame 31. This causes the movable chuck 34 and the fixed chuck 32 to clamp the wire 200. When the chuck assembly 3 rotates with the wire 200 at a certain angle, the wire 200 is wound around the annular workpiece 400 once. The mating part 35 of the chuck assembly 3 then moves from the convex surface to the concave surface. During this movement, the return spring 36 pushes the moving rod 33 to return to its original position, and the movable chuck 34 releases the clamped wire 200, allowing the wire 200 to be pulled downwards by the hook device 300 and pass through the annular workpiece 400. Therefore, the intermittent opening and closing of the chuck assembly 3 is achieved through the concave and convex surfaces on the fixed seat 1, a very ingenious design.

[0024] like Figure 4 As shown, a transition surface 13 is provided between the convex and concave surfaces to cooperate with the chuck assembly 3 and put the chuck assembly 3 in a semi-clamped state. When the chuck assembly 3 moves to the transition surface, the chuck assembly 3 is in a semi-clamped state, neither too loose nor too tight. Therefore, when the chuck assembly 3 clamps the wire 200 and rotates with the wire 200, the wire 200 can move relative to the chuck assembly 3. This can avoid the chuck assembly 3 clamping too tightly at the beginning, which would cause the wire 200 to break during rotation, thus ensuring that automatic winding can be achieved even with a very compact overall device structure.

[0025] like Figure 2 As shown, the mating part 35 is a roller that can roll on the convex and concave surfaces when the chuck assembly 3 rotates, so that the moving rod 33 can move smoothly without jamming.

[0026] like Figure 2 and Figure 3As shown, the fixed frame 31 includes a connecting seat 311 fixedly connected to the rotating seat 2. The connecting seat 311 is provided with a front support rod 312 and a rear support rod 313 spaced apart from each other. The front support rod 312 and the rear support rod 313 have an arc-shaped structure. A connecting rod 314 connects the front support rod 312 and the rear support rod 313. The fixed clamp 32 is disposed on the front support rod 312. A connecting pipe 315 is connected to the rear support rod 313. The movable rod 33 passes through the connecting pipe 315 and can move back and forth relative to it. Therefore, the front support rod 312, the rear support rod 313, the connecting rod 314, and the connecting pipe 315 form a frame structure. When the clamp assembly 3 rotates above the annular workpiece 400, this frame structure can effectively support the wire 200, facilitating the hooking device 300 to hook the wire 200.

[0027] like Figure 2 and Figure 3 As shown, positioning rods 316 are also provided at intervals on the fixed frame 31. When the clamp assembly 3 rotates above the annular workpiece 400, the wire 200 is located between the two positioning rods 316, which can better position the wire 200 and make it easier for the hooking device 300 to hook the wire 200.

[0028] like Figure 4 and Figure 5 As shown, both the fixed seat 1 and the rotating seat 2 are ring-shaped structures, so that after the fixed seat 1 and the rotating seat 2 are sleeved on the ring-shaped workpiece, they are located outside the clamping assembly 4. Therefore, the entire device has a simple and compact structure and occupies little space.

[0029] In this embodiment, the annular workpiece 400 is a magnetic ring. Of course, the annular workpiece 400 can also be other annular parts that require winding.

Claims

1. A rotary opening and closing clamping device, characterized in that: The device includes a fixed base (1) and a rotating base (2) that can rotate relative to the fixed base (1). A chuck assembly (3) is connected to the rotating base (2) and can follow its rotation to make a circular motion on the fixed base (1). The fixed base (1) is provided with a first driving part (11) and a second driving part (12). When the chuck assembly (3) rotates to contact the first driving part (11), the first driving part (11) causes the chuck assembly (3) to close. When the chuck assembly (3) rotates to contact the second driving part (12), the second driving part (12) causes the chuck assembly (3) to open. The clamp assembly (3) includes a fixed frame (31) connected to the rotating seat (2). The fixed frame (31) is provided with a fixed clamp (32) and a movable rod (33) that can move back and forth relative to the fixed frame (31). One end of the movable rod (33) is provided with a movable clamp (34) that can cooperate with the fixed clamp (32). The other end of the movable rod (33) is provided with a mating part (35) that can contact and cooperate with the first driving part (11) and the second driving part (12) on the fixed seat (1). A return spring (36) that can push the movable rod (33) to reset is also provided between the movable rod (33) and the fixed frame (31). The first driving part (11) is a convex surface provided on the fixed base (1), and the second driving part (12) is a concave surface provided on the fixed base (1) and connected to the convex surface; A transition surface (13) is provided between the convex and concave surfaces to cooperate with the chuck assembly (3) so that the chuck assembly (3) is in a semi-clamped state. The mating part (35) is a roller that can roll on the convex and concave surfaces when the chuck assembly (3) rotates; The fixed frame (31) includes a connecting seat (311) fixedly connected to the rotating seat (2). The connecting seat (311) is provided with a front support rod (312) and a rear support rod (313) spaced apart from each other. The front support rod (312) and the rear support rod (313) have an arc-shaped structure. A connecting rod (314) is provided between the front support rod (312) and the rear support rod (313). The fixed clamp (32) is provided on the front support rod (312). A connecting pipe (315) is connected to the rear support rod (313). The moving rod (33) passes through the connecting pipe (315) and can move back and forth relative to it. The fixed seat (1) and the rotating seat (2) are both ring-shaped structures, so that the fixed seat (1) and the rotating seat (2) are located on the outside of the clamping assembly (4) after being sleeved on the ring-shaped workpiece; Positioning rods (316) are provided at intervals on the fixed frame (31).

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