Gripper device

Abstract

A clamp device includes a base mechanism, an operation unit, and a clamping mechanism. The clamping mechanism includes a moving base upwardly passing through the base mechanism and connecting the operation unit, and a clamping module. The clamping module has a plurality of clamping units pivotally arranged between the base mechanism and the moving base. An extended end of each of the clamping units has a clamping portion. When the clamping mechanism is driven by the operation unit to change from a released position to a clamping position, the moving base is driven to move upward, thereby driving the clamping portions to move upward and inward, and the disc-shaped object can be clamped. Through the above design, the disc-shaped object can be clamped by operating the clamp device, and the safety risk of contacting chemicals can be reduced.

Description

Technical Field

[0001] This utility model relates to a clamp, and more particularly to a clamping device for clamping disc-shaped objects. Background Technology

[0002] In the manufacturing process of many products, the use of chemicals is quite common. The fixtures and equipment used in this process will inevitably become contaminated with these chemicals. Personnel handling disc-shaped fixtures and equipment must wear protective gloves. However, wearing protective gloves is not foolproof. If the gloves are damaged, personnel can still be at risk of hand contact with chemicals. In other words, the above method carries a significant risk. Utility Model Content

[0003] The purpose of this invention is to provide a clamping device that can improve upon at least one of the shortcomings of the prior art.

[0004] The clamping device of this utility model is suitable for clamping disc-shaped objects, and includes a base mechanism, an operating unit located above the base mechanism, and a clamping mechanism.

[0005] The clamping mechanism includes a movable seat spaced below and extending upward through the base mechanism, and a clamping module pivotally mounted between the base mechanism and the movable seat. The movable seat is connected to the operating unit, and the clamping module has several clamping units pivotally mounted between the base mechanism and the movable seat. The clamping units extend outward from the movable seat at angular intervals. Each clamping unit has a clamping portion at its extended end.

[0006] The clamping mechanism can be driven by the operating unit to change between a release position where it cannot clamp the disc-shaped object and a clamping position where it can clamp the disc-shaped object. When the clamping mechanism changes from the release position to the clamping position, the movable seat is driven to move upward, thereby driving the clamping part upward and retracting inward, so that it can be used to clamp the disc-shaped object.

[0007] The clamping device of this utility model has a clamping member that is pivotally mounted on the movable seat relative to the movable seat, and a linkage member that is pivotally mounted on the seat mechanism relative to the seat mechanism and pivotally mounted on the clamping member. The clamping member extends outward from the movable seat.

[0008] The clamping device of this utility model includes a base unit and a fixed seat installed and fixed below the base unit. The base unit has a seat for mounting the fixed seat and several abutment seats respectively corresponding to the clamping members and arranged below the seat. Each abutment seat cooperates with the seat to define an extension space for the corresponding clamping member to extend outward.

[0009] The clamping device of this utility model further includes a pivot portion pivotally mounted on the movable seat and pivotally mounted on the corresponding linkage member, and an extension portion extending outward from the pivot portion and passing through the corresponding through-space. The clamping portion extends downward from the extension end of the extension portion.

[0010] The clamping device of this utility model has a movable seat with a mounting part located below the fixed seat and for pivoting the clamping unit, and a shaft connection part extending upward from the mounting part through the fixed seat and the seat body. The operating unit is screwed to the shaft connection part and will drive the movable seat to move up and down relative to the fixed seat when it is operated and rotated.

[0011] The clamping device of this utility model has a shaft connection portion with a recessed and annular adjustment space on its circumference. The adjustment space has a top region and a bottom region with opposite top and bottom. The operating unit has an operating member screwed to the shaft connection portion and a limiting member that is transversely inserted through the operating member and extends into the adjustment space. During the process of the clamping mechanism changing from the release position to the clamping position, the shaft connection portion moves upward relative to the limiting member, causing the limiting member to move downward relative to the bottom region from the top region.

[0012] The clamping device of this utility model has each of the pivoting parts having a first pivoting section pivotally mounted on the movable seat and a second pivoting section located between the first pivoting section and the extension, and each of the linkages having a first end pivotally mounted on the fixed seat and a second end pivotally mounted on the second pivoting section that can swing up and down relative to the first end.

[0013] The clamping device of this utility model has a base body with an opening facing downward and a receiving space for mounting the fixed base.

[0014] The clamping device of this utility model includes a base body comprising a central portion having the accommodating space, a plurality of arms extending outward from the central portion at equal angular intervals, and a ring portion spaced from the central portion and connected to the arms, wherein the abutment seats are respectively installed below the arms.

[0015] The clamping device of this utility model further includes an elastic element disposed on the shaft connection portion and supporting the mounting portion and the fixed base.

[0016] The advantage of this invention is that, by designing the clamping mechanism to be driven by the operating unit and change between the release position and the clamping position, personnel can clamp the disc-shaped object by operating the clamping device of this invention, thereby reducing the safety risk of contact with chemicals. Attached Figure Description

[0017] Other features and effects of this utility model will be clearly presented in the embodiments with reference to the drawings, wherein:

[0018] Figure 1 This is a perspective view illustrating an embodiment of the clamping device of this utility model;

[0019] Figure 2 It is similar Figure 1 One view, but viewed from another angle;

[0020] Figure 3 This is an exploded three-dimensional diagram illustrating the described embodiment;

[0021] Figure 4 This is an incomplete exploded perspective view illustrating the structure of the fixing base and clamping mechanism in the embodiment described.

[0022] Figure 5 This is a partial side sectional view illustrating that the clamping mechanism in the embodiment is in the released position;

[0023] Figure 6 This is a partial side sectional view illustrating the clamping mechanism of the embodiment in the clamping position, and illustrating the clamping of a disc-shaped object in the embodiment; and

[0024] Figure 7 This is an incomplete partial side sectional view illustrating the clamping mechanism of the embodiment in the release position, and schematically illustrating the situation of the movable seat and two of the clamping units when the clamping mechanism is in the clamping position. Detailed Implementation

[0025] See Figure 1 , 2 3. Embodiments of the clamping device of this utility model are suitable for clamping disc-shaped objects 9 ( Figure 6 In this embodiment, the disc-shaped object 9 is described as a disc-shaped jig, but the implementation is not limited to this; for example, it can also be a tool or equipment used in the manufacturing process. The clamping device includes a base mechanism 3, a clamping mechanism 4, and an operating unit 8.

[0026] The seat mechanism 3 includes a base unit 31, a fixed seat 32 installed on the bottom side of the base unit 31, and a gripping unit 33 installed on the top side of the base unit 31.

[0027] The base unit 31 includes a base body 34 that is generally circular in shape, and several abutment seats 35 that are installed at equal angular intervals on the bottom side of the base body 34.

[0028] The seat 34 has a generally circular central portion 341, four arms 342 extending outward from the central portion 341 at equal angular intervals, and a generally annular ring portion 343 spaced from the central portion 341 and connected to the arms 342. The central portion 341 has a downward-facing receiving space 340. Each arm 342 has an end portion 344 opposite to the central portion 341. The abutment 35 has a generally U-shaped cross-section and is fixed below each end portion 344. Each abutment 35 cooperates with the corresponding end portion 344 to define a through space 350 extending along the longitudinal direction of the corresponding arm 342.

[0029] See Figure 2 , 3 4. The fixing seat 32 is installed in the accommodating space 340 and has a seat body 321 and four mounting parts 322 extending outward from the seat body 321 along the longitudinal direction of the arm 342.

[0030] The gripping unit 33 is disposed on the ring portion 343 of the base 34 for gripping operation. In this embodiment, the gripping unit 33 is generally ring-shaped, but in practice, as long as the purpose of gripping operation is achieved, it is not limited to the above-described manner.

[0031] The clamping mechanism 4 includes a movable seat 5 that passes upward through the seat mechanism 3, an elastic member 50 disposed on the movable seat 5, and a clamping module 6 pivotally disposed between the movable seat 5 and the fixed seat 32.

[0032] The movable seat 5 has a mounting portion 51 located below the fixed seat 32 at a distance, and a shaft connection portion 52 extending upward from the mounting portion 51 and sequentially passing through the fixed seat 32 and the central portion 341 of the seat body 34.

[0033] The mounting part 51 has four mounting points 511. The mounting points 511 are located below the mounting part 322 in corresponding positions.

[0034] The section of the shaft connection 52 that extends out of the central portion 341 has an annular adjustment space 520 recessed from its circumference. The adjustment space 520 has a top region 521 and a bottom region 522 with opposite top and bottom orientations.

[0035] The elastic element 50 is sleeved on the shaft connection portion 52 and supports the mounting portion 51 and the fixed seat 32.

[0036] The clamping module 6 has four clamping units 7 respectively pivotally mounted between the mounting portion 322 of the fixed base 32 and the mounting portion 511 of the movable base 5.

[0037] Each of the clamping units 7 has a clamping member 71 pivotally mounted on the corresponding mounting portion 511 and extending outward along the longitudinal direction of the corresponding arm portion 342, and a connecting member 72 pivotally mounted between the corresponding mounting portion 322 and the clamping member 71.

[0038] The clamping member 71 can pivot up and down relative to the corresponding mounting part 511, and has a pivot part 711 pivotally connected to the corresponding mounting part 511, an extension part 712 extending outward from the pivot part 711 along the longitudinal direction of the corresponding arm part 342 and passing through the corresponding extension space 350, and a clamping part 713 extending downward from the extension end of the extension part 712.

[0039] The pivot portion 711 has a first pivot section 714 pivotally connected to the corresponding mounting portion 511, and a second pivot section 715 located between the first pivot section 714 and the extension portion 712.

[0040] In this embodiment, each of the clamping members 71 is designed as a one-piece structure, but this is not a limitation in implementation. Each of the clamping members 71 can also be designed as two structures that extend along the longitudinal direction of the corresponding arm portion 342 and can be placed side by side.

[0041] The linkage 72 has a first end 721 pivotally mounted on the mounting portion 322 of the corresponding fixed base 32, and a second end 722 that can swing up and down relative to the first end 721. The second end 722 is pivotally mounted on the second pivoting section 715 of the clamping member 71, and can drive the clamping member 71 to swing up and down.

[0042] The operating unit 8 is mounted on the shaft connection portion 52 of the movable seat 5, and has an operating member 81 screwed downward to the shaft connection portion 52, and a limiting member 82 extending laterally through the operating member 81. The limiting member 82 extends into the top region 521 of the adjustment space 520.

[0043] See Figure 5 , 67. To use this invention to clamp the disc-shaped object 9, first, hold the gripping unit 33 and abut the abutment seat 35 against the disc-shaped object 9. Then, rotate the operating unit 8 in the rotation direction to move the clamping mechanism 4 from the release position where it could not clamp the disc-shaped object 9. Figure 5 ), change to a clamping position that can hold the disc-shaped object 9 ( Figure 6 The disc-shaped object 9 can then be clamped and easily removed.

[0044] In detail, when the clamping mechanism 4 is in the released position, the pivot portion 711 and the extension portion 712 of each clamping member 71 are generally horizontal, and the end of the limiting member 82 of the operating unit 8 is located in the top region 521 of the adjustment space 520. When the operating unit 8 is rotated in the rotation direction, the movable seat 5 is driven to move upward and closer to the fixed seat 32, so that the limiting member 82 moves downward relative to the movable seat 5 until the end of the limiting member 82 abuts against the bottom region 522 of the adjustment space 520, at which point the operating unit 8 can no longer be operated and can no longer rotate in the rotation direction.

[0045] As the movable seat 5 is moved upward, the first pivot segment 714 of the pivot portion 711 of each clamping member 71 is simultaneously moved upward, causing each clamping member 71 to pivot downward relative to the movable seat 5. At the same time, the second pivot segment 715 of each clamping member 71 is slightly pulled upward by the linkage 72. That is, each clamping member 71 is simultaneously subjected to the upward force of the movable seat 5 and the upward pulling force of the linkage 72, causing each clamping member 71 to be slightly tilted. This causes the clamping portion 713 to slightly retract relative to the abutment 35, allowing it to cooperate with other clamping portions 713 to clamp the disc-shaped object 9. At this time, the clamping mechanism 4 is in the clamping position.

[0046] When you want to release the disc-shaped object 9, simply rotate the operating unit 8 in the opposite direction of rotation to move the clamping mechanism 4 from the clamping position to the release position, and the disc-shaped object 9 can be released.

[0047] It is worth mentioning that the elastic element 50 is provided between the mounting part 51 and the fixed base 32. During the process of the clamping mechanism 4 changing from the release position to the clamping position, the elastic element 50 is compressed. When the clamping mechanism 4 changes from the clamping position to the release position, the elastic element 50 provides a downward elastic force to the mounting part 51, making it easier to rotate the operating unit 8 in the opposite direction of rotation.

[0048] It should be noted that in this embodiment, the number of clamping units 7 is four, but in practice, the number of clamping units 7 can also be set to two, three, or more than four.

[0049] In addition, in this embodiment, the surface of the shaft connection portion 52 has a threaded structure, and the operating member 81 is screwed onto the shaft connection portion 52, allowing it to be rotated and thus driving the movable seat 5 to move up and down. However, in practice, as long as the purpose of operating the operating member 81 to drive the movable seat 5 to move up and down can be achieved, the above method is not a limitation.

[0050] In summary, by designing the clamping mechanism 4 to be driven by the operating unit 8 and change between the release position and the clamping position, personnel can clamp the disc-shaped object 9 by operating the clamping device of this utility model. This not only avoids contact with chemicals but also reduces the risk of dropping the disc-shaped object 9 when handled by hand. Therefore, the purpose of this utility model is indeed achieved.

[0051] Furthermore, with each of the clamping members 71 pivotally mounted on the movable seat 5 and the linkage member 72 pivotally mounted thereon, and in conjunction with the design of the corresponding linkage member 72 pivotally mounted on the fixed seat 32, each of the clamping members 71 will simultaneously be subjected to the upward force of the movable seat 5 and the upward pulling force of the linkage member 72, thereby causing the clamping part 713 to slightly retract inward relative to the abutment seat 35.

[0052] Furthermore, the design of the operating unit 8, with its limiting member 82 extending into the adjustment space 520 of the movable seat 5 and thus capable of vertical displacement in the adjustment space 520, allows the user to intuitively control the vertical displacement of the movable seat 5 simply by operating the operating member 81.

[0053] However, the above description is only an embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Any simple equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the patent specification of this utility model shall still fall within the scope of this utility model patent.

Claims

1. A clamping device suitable for clamping disc-shaped objects, comprising a base mechanism and an operating unit located above the base mechanism, characterized in that: The clamping device further includes a clamping mechanism, which includes a movable seat spaced below the base mechanism and extending upward through the base mechanism, and a clamping module pivotally disposed between the base mechanism and the movable seat. The movable seat is connected to the operating unit. The clamping module has several clamping units pivotally disposed between the base mechanism and the movable seat. The clamping units extend outward from the movable seat at angular intervals. Each clamping unit has a clamping portion at its extended end. The clamping mechanism can be driven by the operating unit to change between a release position where the disc-shaped object cannot be clamped and a clamping position where the disc-shaped object can be clamped. When the clamping mechanism changes from the release position to the clamping position, the movable seat is driven to move upward, thereby driving the clamping portions upward and retracting inward, so as to clamp the disc-shaped object.

2. The clamping device according to claim 1, characterized in that: Each of the clamping units has a clamping member pivotally mounted on the movable seat relative to the movable seat, and a linkage member pivotally mounted on the seat mechanism and pivotally mounted on the clamping member relative to the seat mechanism, the clamping member extending outward from the movable seat.

3. The clamping device according to claim 2, characterized in that: The base mechanism includes a base unit and a fixed seat installed and fixed below the base unit. The base unit has a base body for mounting the fixed seat and several abutment seats respectively corresponding to the clamping members and disposed below the base body. Each abutment seat cooperates with the base body to define an extension space for the corresponding clamping member to extend outward.

4. The clamping device according to claim 3, characterized in that: Each of the clamping members also has a pivot portion pivotally mounted on the movable seat and pivotally mounted on the corresponding linkage member, and an extension portion extending outward from the pivot portion and passing through the corresponding through-space, wherein the clamping portion extends downward from the extension end of the extension portion.

5. The clamping device according to claim 4, characterized in that: The movable seat has a mounting portion located below the fixed seat and pivotally mounted on the clamping unit, and a shaft connection portion extending upward from the mounting portion through the fixed seat and the seat body. The operating unit is screwed to the shaft connection portion and, when operated and rotated, causes the movable seat to move up and down relative to the fixed seat.

6. The clamping device according to claim 5, characterized in that: The shaft connection has a recessed, annular adjustment space on its circumference. The adjustment space has a top region and a bottom region with opposite top and bottom. The operating unit has an operating member screwed into the shaft connection and a limiting member that passes laterally through the operating member and extends into the adjustment space. During the process of the clamping mechanism changing from the release position to the clamping position, the shaft connection will move upward relative to the limiting member, causing the limiting member to move downward relative to the bottom region from the top region.

7. The clamping device according to claim 4, characterized in that: Each of the pivoting portions has a first pivoting section pivotally mounted on the movable seat and a second pivoting section located between the first pivoting section and the extension portion. Each of the linkages has a first end pivotally mounted on the fixed seat and a second end pivotally mounted on the second pivoting section and capable of swinging up and down relative to the first end.

8. The clamping device according to claim 3, characterized in that: The base has a downward-facing opening and a space for mounting the fixed base.

9. The clamping device according to claim 8, characterized in that: The seat includes a central portion having the accommodating space, several arms extending outward from the central portion at equal angular intervals, and a ring portion spaced from the central portion and connected to the arms. The abutment is respectively installed below the arms.

10. The clamping device according to claim 5, characterized in that: The clamping mechanism also includes an elastic element disposed on the shaft joint and supporting the mounting portion and the fixed base.

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