Clamping structure of carbon fiber arm winding die

Abstract

The utility model relates to a carbon fiber arm winding mould clamping structure which comprises a first clamping body, a second clamping body, a fixing assembly, a first fastener and a universal rotating structure, the first clamping body and the second clamping body are oppositely arranged to form a workpiece placing position used for clamping a carbon fiber arm winding mould; one end of the fixing assembly is fixedly connected with the first clamping body, the other end of the fixing assembly is fixedly connected with the second clamping body, and a carbon fiber arm winding mold is fixedly connected between the two ends of the fixing assembly; the first fastener is fixedly connected with the first clamping body; and the universal rotating structure is movably connected with the second clamping body. After the carbon fiber arm winding mold is clamped through the first clamping body and the second clamping body, the first clamping body is connected with the driving end of winding equipment, and the second clamping body is connected with the follow-up end of the winding equipment through the universal rotating structure, so that multi-dimensional movement of the carbon fiber arm winding mold is achieved, and a carbon fiber wire is wound on the carbon fiber arm winding mold; and completing the preparation of the carbon fiber arm.

Description

Technical Field

[0001] The utility model belongs to the technical field of carbon fiber, and particularly relates to a clamping structure for a carbon fiber arm winding mold. Background Art

[0002] In the body structure of the robot industry, there are a large number of arm structural components. They bear the main motion load of the robot. With the continuous improvement of the requirements for the efficiency of robot products, the demand for lightweight of its moving components is also continuously increasing.

[0003] Current arm products include metal machined arms, metal cast arms, composite material tubes assembled with metal, and hand-laid composite material arms. Metal machined arms and metal cast arms are heavy in weight and are not suitable for products with overall lightweight requirements. The weight of composite material tubes assembled with metal is relatively lighter than that of metal machined arms and metal cast arms, but the overall assembly is more cumbersome, and since there is still a large amount of metal in them, lightweight improvement is still required. Hand-laid composite material arms need to be prepared by manual laying, and the production efficiency is low.

[0004] The winding process is a process method that can efficiently utilize the strength performance of carbon fiber and is widely used in fields such as aerospace shells and composite material gas cylinders. However, arm products are all of special-shaped structures, and the existing winding tooling for rotary body products is not applicable to arm products. Therefore, providing a clamping structure for a winding mold for arm products has become an urgent technical problem to be solved. Summary of the Utility Model

[0005] In order to solve the above problems existing in the prior art, the utility model provides a clamping structure for a carbon fiber arm winding mold. The technical problems to be solved by the utility model are realized through the following technical solutions:

[0006] A clamping structure for a carbon fiber arm winding mold includes: a first clamping body, a second clamping body, a fixing component, a first fastener, and a universal rotating structure, wherein,

[0007] The first clamping body and the second clamping body are arranged opposite to each other to form a workpiece placement position for clamping a carbon fiber arm winding mold;

[0008] One end of the fixing component is fixedly connected to the first clamping body, and the other end of the fixing component is fixedly connected to the second clamping body. The two ends of the fixing component are used for fixedly connecting the carbon fiber arm winding mold;

[0009] The first fastener is fixedly connected to the first clamping body;

[0010] The universal rotating structure is movably connected to the second clamping body.

[0011] In an implementable manner, the upper surface of the first clamping body and the lower surface of the second clamping body are oppositely arranged;

[0012] The lower surface of the first clamping body is provided with a connecting portion for connecting to the active end of the winding device.

[0013] In an implementable manner, the upper surface of the first clamping body is provided with a positioning portion and a positioning hole for connecting to the carbon fiber arm winding mold;

[0014] A first fixing hole penetrating through to the positioning hole is formed in the side surface of the first clamping body;

[0015] The first fastener is inserted into the first fixing hole, and the end portion of the first fastener is located in the positioning hole.

[0016] In an implementable manner, the first fastener includes: a first butterfly screw, a first clamping ring, and a first fastening screw, wherein,

[0017] The first clamping ring includes a first arc plate portion and a second arc plate portion connected to one side of the first arc plate portion;

[0018] The first arc plate portion is located in the positioning hole and is connected to the end portion of the first butterfly screw through the first fastening screw;

[0019] The second arc plate portion is located on the upper surface of the first clamping body.

[0020] In an implementable manner, a first connection hole for connecting to the fixing component is formed in the upper surface of the first clamping body;

[0021] A second fixing hole penetrating through to the first connection hole is formed in the side surface of the first clamping body.

[0022] In an implementable manner, a spherical surface groove coaxial with the connecting portion is formed in the upper surface of the second clamping body;

[0023] The spherical surface groove is used for connecting to the universal rotation structure.

[0024] In an implementable manner, the universal rotation structure includes a straight rod and a ball head located at the end of the straight rod;

[0025] The straight rod is used for connecting to the follower end of the winding device;

[0026] The ball head is movably connected to the spherical surface groove and can rotate in the spherical surface groove.

[0027] In an implementable manner, a second connection hole corresponding to the first connection hole is formed in the lower surface of the second clamping body;

[0028] A third fixing hole penetrating through to the second connection hole is formed on the side surface of the second clamping body.

[0029] In an implementable manner, the fixing assembly includes: a hollow shaft, a second fastener, and a third fastener, wherein,

[0030] One end of the hollow shaft is located in the first connection hole, and the other end is located in the second connection hole. The hollow shaft is disposed through the carbon fiber arm winding mold between its two ends;

[0031] The second fastener is disposed through the second fixing hole, and the end of the second fastener is in contact with one end of the hollow shaft;

[0032] The third fastener is disposed through the third fixing hole, and the end of the third fastener is in contact with the other end of the hollow shaft.

[0033] In an implementable manner, the second fastener includes: a second butterfly screw, a second retaining ring, and a second fastening screw, wherein,

[0034] The second retaining ring is disposed at the end of the second butterfly screw, and a through hole is formed on the surface of the second retaining ring;

[0035] The second fastening screw is located in the through hole and is fixedly connected to the end of the second butterfly screw.

[0036] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0037] For the clamping structure of the carbon fiber arm winding mold provided by the present utility model, after the carbon fiber arm winding mold is clamped by the first clamping body and the second clamping body, the first clamping body is connected to the driving end of the winding device, and the second clamping body is connected to the follower end of the winding device through a universal rotation structure. The driving end of the winding device drives the entire clamping structure to move. The universal rotation structure rotates relative to the second clamping body according to the movement direction of the driving end of the winding device, realizing multi-dimensional movement of the carbon fiber arm winding mold, winding the carbon fiber wire on the carbon fiber arm winding mold, and completing the preparation of the carbon fiber arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic structural view of a clamping structure of a carbon fiber arm winding mold clamping the carbon fiber arm winding mold in an embodiment of the present utility model;

[0039] Figure 2 is a schematic structural view of a clamping structure of a carbon fiber arm winding mold not clamping the carbon fiber arm winding mold in an embodiment of the present utility model;

[0040] Figure 3 It is a schematic structural view of the first clamping body in the embodiment of the present utility model;

[0041] Figure 4 It is a schematic structural view of the second clamping body in the embodiment of the present utility model;

[0042] Figure 5 It is a schematic structural view of the first fastener in the embodiment of the present utility model;

[0043] Figure 6 It is a schematic structural view of the fixing assembly in the embodiment of the present utility model;

[0044] Figure 7 It is a schematic structural view of the second fastener in the embodiment of the present utility model.

[0045] Reference numerals:

[0046] 1: First clamping body; 11: Connecting portion; 12: Positioning portion; 13: Positioning hole; 14: First fixing hole; 15: First connecting hole; 16: Second fixing hole; 17: Locking hole; 2: Second clamping body; 21: Spherical surface groove; 22: Second connecting hole; 23: Third fixing hole; 3: Carbon fiber arm winding mold; 4: Fixing assembly; 41: Hollow shaft; 42: Second fastener; 421: Second butterfly screw; 422: Second holding ring; 423: Second fastening screw; 43: Third fastener; 5: First fastener; 51: First butterfly screw; 52: First holding ring; 53: First fastening screw; 6: Universal rotating structure. Detailed implementation manners

[0047] The following further describes the present utility model in detail with reference to specific embodiments, but the implementation manners of the present utility model are not limited thereto.

[0048] Embodiment 1

[0049] Please refer to Figure 1 and Figure 2 , Figure 1 It is a schematic structural view of a clamping structure of a carbon fiber arm winding mold clamping the carbon fiber arm winding mold in the embodiment of the present utility model, Figure 2 It is a schematic structural view of a clamping structure of a carbon fiber arm winding mold without clamping the carbon fiber arm winding mold in the embodiment of the present utility model.

[0050] A clamping structure for a carbon fiber arm winding mold provided in this embodiment includes: a first clamping body 1, a second clamping body 2, a fixing component 4, a first fastener 5, and a universal rotating structure 6. Among them, the first clamping body 1 and the second clamping body 2 are arranged opposite to each other to form a workpiece placement position for clamping the carbon fiber arm winding mold 3. One end of the fixing component 4 is fixedly connected to the first clamping body 1, and the other end of the fixing component 4 is fixedly connected to the second clamping body 2. Between the two ends of the fixing component 4 is used for fixedly connecting the carbon fiber arm winding mold 3. The first fastener 5 is fixedly connected to the first clamping body 1. The universal rotating structure 6 is movably connected to the second clamping body 2.

[0051] Specifically, the shapes of the first clamping body 1 and the second clamping body 2 are both designed according to the shape of the carbon fiber arm winding mold 3. In this embodiment, the cross-sectional shape of the carbon fiber arm winding mold 3 is a closed figure formed by a large arc, a small arc, a straight line, and an arc. One end of the large arc and one end of the small arc are connected by a straight line, and the other end of the large arc and the other end of the small arc are connected by an arc. The first clamping body 1 and the second clamping body 2 are both the same as the cross-sectional shape of the carbon fiber arm winding mold 3. When clamping the carbon fiber arm winding mold 3, after the fixing component 4 passes through the small arc end of the carbon fiber arm winding mold 3, one end of the fixing component 4 is fixedly connected to the small arc end of the second clamping body 2, and the other end of the fixing component 4 is fixedly connected to the small arc end of the first clamping body 1. The first fastener 5 is fixedly connected to the large arc end of the first clamping body 1 and fixes the large arc end of the carbon fiber arm winding mold 3 on the first clamping body 1. After clamping the carbon fiber arm winding mold 3 by the first clamping body 1 and the second clamping body 2, connect the first clamping body 1 to the active end of the winding equipment, and connect the second clamping body 2 to the follower end of the winding equipment through the universal rotating structure 6. The active end of the winding equipment drives the overall movement of the clamping structure, and the universal rotating structure 6 rotates relative to the second clamping body 2 according to the movement direction of the active end of the winding equipment, realizing the multi-dimensional movement of the carbon fiber arm winding mold 3, winding the carbon fiber wire on the carbon fiber arm winding mold 3, and completing the preparation of the carbon fiber arm.

[0052] Specifically, the upper surface of the first clamping body 1 and the lower surface of the second clamping body 2 are arranged opposite to each other. The lower surface of the first clamping body 1 is provided with a connecting portion 11 for connecting the active end of the winding equipment.

[0053] In this embodiment, the upper surface of the first clamping body 1 conforms to the shape of the upper surface of the carbon fiber arm winding mold 3, and the lower surface of the second clamping body 2 conforms to the shape of the upper surface of the carbon fiber arm winding mold 3. When clamping, the upper surface of the carbon fiber arm winding mold 3 contacts the lower surface of the second clamping body 2, and the lower surface of the carbon fiber arm winding mold 3 contacts the upper surface of the first clamping body 1. Four locking holes 17 are also provided on the surface of the first clamping body 1 and around the connecting portion 11. The first clamping body 1 is connected to the active end of the winding device through the connecting portion 11 and is fixedly connected to the winding device through the locking holes 17.

[0054] Specifically, please refer to Figure 3 , a positioning portion 12 and a positioning hole 13 for connecting the carbon fiber arm winding mold 3 are provided on the upper surface of the first clamping body 1. A first fixing hole 14 penetrating through to the positioning hole 13 is provided on the side surface of the first clamping body 1. The first fastener 5 is inserted into the first fixing hole 14, and the end of the first fastener 5 is located in the positioning hole 13.

[0055] In this embodiment, a round hole is provided at the large arc end of the carbon fiber arm winding mold 3. The round hole is sleeved on the positioning portion 12. The end of the first fastener 5 is located in the positioning hole 13, and the inner wall of the round hole of the carbon fiber arm winding mold 3 of the first fastener 5 is used to fix the carbon fiber arm winding mold 3 and the first clamping body 1.

[0056] Specifically, please refer to Figure 5 , the first fastener 5 includes: a first wing screw 51, a first retaining ring 52 and a first fastening screw 53. Among them, the first retaining ring 52 includes a first arc plate portion and a second arc plate portion connected to one side of the first arc plate portion. The first arc plate portion is located in the positioning hole 13 and is connected to the end of the first wing screw 51 through the first fastening screw 53. The second arc plate portion is located on the upper surface of the first clamping body 1.

[0057] In this embodiment, the positioning portion 12 is a semi-cylinder. The vertex of the positioning hole 13 far from the positioning portion 12 and the arc edge of the positioning portion 12 are located on the same circumference, and this circumference is slightly smaller than the round hole of the carbon fiber arm winding mold 3. When the round hole of the carbon fiber arm winding mold 3 is sleeved on the positioning portion 12, the second arc plate portion is located in the round hole of the carbon fiber arm winding mold 3. The first wing screw 51 is threadedly connected to the first fixing hole 14. Before fixing the carbon fiber arm winding mold 3, first rotate the first wing screw 51 to make the first retaining ring 52 move towards the center of the positioning hole 13. After sleeving the round hole of the carbon fiber arm winding mold 3 on the positioning portion 12, rotate the first wing screw 51 in the reverse direction to make the first retaining ring 52 move away from the center of the positioning hole 13 until the outer wall of the second arc plate portion abuts against the inner wall of the round hole of the carbon fiber arm winding mold 3 to fix the first clamping body 1 and the carbon fiber arm winding mold 3.

[0058] Specifically, please refer to Figure 2 , Figure 3 and Figure 4 . On the upper surface of the first clamping body 1, a first connection hole 15 for connecting the fixing component 4 is provided, and on the side surface of the first clamping body 1, a second fixing hole 16 penetrating through to the first connection hole 15 is provided. On the lower surface of the second clamping body 2, a second connection hole 22 corresponding to the first connection hole 15 is provided, and on the side surface of the second clamping body 2, a third fixing hole 23 penetrating through to the second connection hole 22 is provided.

[0059] Specifically, please refer to Figure 6 . The fixing component 4 includes: a hollow shaft 41, a second fastener 42, and a third fastener 43. Among them, one end of the hollow shaft 41 is located in the first connection hole 15, the other end is located in the second connection hole 22, and the hollow shaft 41 is passed through the carbon fiber arm winding mold 3 between the two ends. The second fastener 42 is passed through the second fixing hole 16, and the end of the second fastener 42 contacts one end of the hollow shaft 41. The third fastener 43 is passed through the third fixing hole 23, and the end of the third fastener 43 contacts the other end of the hollow shaft 41.

[0060] In this embodiment, the large arc ends of the first clamping body 1 and the second clamping body 2 are connected to the large arc end of the carbon fiber arm winding mold 3 through the hollow shaft 41. The second fastener 42 passes through the second fixing hole 1 and presses against the lower end of the hollow shaft 41, and the third fastener 43 passes through the third fixing hole 23 and presses against the upper end of the hollow shaft 41 to fix the first clamping body 1, the second clamping body 2, and the carbon fiber arm winding mold 3. Optionally, the hollow shaft 41 can be placed in the carbon fiber arm winding mold 3 during the preparation stage of the carbon fiber arm winding mold 3, or can be passed through the carbon fiber arm winding mold 3 after the carbon fiber arm winding mold 3 is prepared.

[0061] Specifically, please refer to Figure 7 . The second fastener 42 includes: a second butterfly screw 421, a second retaining ring 422, and a second fastening screw 423. Among them, the second retaining ring 422 is arranged at the end of the second butterfly screw 421, and a through hole is provided on the surface of the second retaining ring 422. The second fastening screw 423 is located in the through hole and is fixedly connected to the end of the second butterfly screw 421.

[0062] In this embodiment, the structures of the second fastener 42 and the third fastener 43 are the same. The inner surface of the second retaining ring 422 contacts the lower end of the hollow shaft 41, and the second butterfly screw 421 is threadedly connected to the second fixing hole 16. By rotating the second butterfly screw 421, the second fastener 42 can move along the second fixing hole 16 to press against or move away from the hollow shaft 41.

[0063] Specifically, please refer to Figure 4, a spherical surface groove 21 coaxial with the connecting portion 11 is provided on the upper surface of the second clamping body 2. The spherical surface groove 21 is used to connect the universal rotating structure 6. The universal rotating structure 6 includes a straight rod and a ball head located at the end of the straight rod. The straight rod is used to connect the follower end of the winding device. The ball head is movably connected to the spherical surface groove 21 and can rotate in the spherical surface groove 21.

[0064] In this embodiment, the first clamping body 1, the second clamping body 2, the fixing assembly 4, the first fastener 5, and the universal rotating structure 6 can all be obtained by machining metal materials. Preferably, in order to prevent the carbon fiber from being misaligned during the winding process and winding outside the carbon fiber arm winding mold 3, the cross-sectional profiles of the first clamping body 1 and the second clamping body 2 in this embodiment are both larger than the cross-sectional profile of the carbon fiber arm winding mold 3 to limit the position of the carbon fiber and prevent the carbon fiber from winding outside the carbon fiber arm winding mold 3.

[0065] The usage method of the carbon fiber arm winding mold clamping structure provided in this embodiment includes:

[0066] Step 1: Fix the first clamping body 1 to the driving end of the winding device using a three-jaw chuck or screws.

[0067] Step 2: Place the carbon fiber arm winding mold 3 at the corresponding position on the upper surface of the first clamping body 1.

[0068] Step 3: Rotate and lock the first fastener 5 and the second fastener 42 to fix the carbon fiber arm winding mold 3 and the first clamping body 1.

[0069] Step 4: Place the second clamping body 2 on the upper surface of the carbon fiber arm winding mold 3.

[0070] Step 5: Rotate the third fastener 43 to fix the carbon fiber arm winding mold 3 and the second clamping body 2.

[0071] Step 6: Connect the straight rod of the universal rotating structure 6 to the follower end of the winding device by means of a three-jaw chuck connection or a threaded connection.

[0072] Step 7: Complete the installation and run the winding device to wind the carbon fiber arm winding mold 3.

[0073] For the carbon fiber arm winding mold clamping structure provided in this embodiment, after the carbon fiber arm winding mold 3 is clamped by the first clamping body 1 and the second clamping body 2, the first clamping body 1 is connected to the driving end of the winding device, and the second clamping body 2 is connected to the follower end of the winding device through the universal rotating structure 6. The driving end of the winding device drives the entire clamping structure to move. The universal rotating structure 6 rotates relative to the second clamping body 2 according to the movement direction of the driving end of the winding device, realizing the multi-dimensional movement of the carbon fiber arm winding mold 3, winding the carbon fiber wire on the carbon fiber arm winding mold 3, and completing the preparation of the carbon fiber arm.

[0074] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model pertains, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, which should all be regarded as belonging to the protection scope of the present utility model.

Claims

1. A clamping structure for a carbon fiber arm winding mold, characterized in that Comprising: A first clamping body (1), a second clamping body (2), a fixing component (4), a first fastener (5), and a universal rotating structure (6), wherein, The first clamping body (1) and the second clamping body (2) are arranged opposite to each other, forming a workpiece placement position for clamping the carbon fiber arm winding mold (3); One end of the fixing component (4) is fixedly connected to the first clamping body (1), the other end of the fixing component (4) is fixedly connected to the second clamping body (2), and the carbon fiber arm winding mold (3) is fixedly connected between the two ends of the fixing component (4); The first fastener (5) is fixedly connected to the first clamping body (1); The universal rotating structure (6) is movably connected to the second clamping body (2).

2. The clamping structure of a carbon fiber arm winding mold according to claim 1, characterized in that The upper surface of the first clamping body (1) and the lower surface of the second clamping body (2) are arranged opposite to each other; A connecting portion (11) for connecting the active end of the winding device is provided on the lower surface of the first clamping body (1).

3. The clamping structure of a carbon fiber arm winding mold according to claim 2, characterized in that, A positioning portion (12) and a positioning hole (13) for connecting the carbon fiber arm winding mold (3) are provided on the upper surface of the first clamping body (1); A first fixing hole (14) penetrating through to the positioning hole (13) is formed on the side surface of the first clamping body (1); The first fastener (5) is inserted into the first fixing hole (14), and the end portion of the first fastener (5) is located in the positioning hole (13).

4. A clamping structure for a carbon fiber arm winding mold according to claim 3, characterized in that, The first fastener (5) includes: a first wing screw (51), a first retaining ring (52), and a first fastening screw (53), wherein, The first retaining ring (52) includes a first arc plate portion and a second arc plate portion connected to one side of the first arc plate portion; The first arc plate portion is located in the positioning hole (13) and is connected to the end portion of the first wing screw (51) through the first fastening screw (53); The second arc plate portion is located on the upper surface of the first clamping body (1).

5. A clamping structure for a carbon fiber arm winding mold according to claim 3, characterized in that, A first connection hole (15) for connecting the fixing component (4) is formed on the upper surface of the first clamping body (1); A second fixing hole (16) penetrating through to the first connection hole (15) is formed on the side surface of the first clamping body (1).

6. The clamping structure of a carbon fiber arm winding mold according to claim 5, characterized in that, A spherical surface groove (21) coaxial with the connecting portion (11) is formed on the upper surface of the second clamping body (2); The spherical surface groove (21) is used for connecting the universal rotating structure (6).

7. A clamping structure for a carbon fiber arm winding mold according to claim 6, characterized in that, The universal rotating structure (6) includes a straight rod and a ball head located at the end of the straight rod; The straight rod is used for connecting the follower end of the winding device; The ball head is movably connected to the spherical surface groove (21) and can rotate in the spherical surface groove (21).

8. A clamping structure for a carbon fiber arm winding mold according to claim 5, characterized in that, A second connection hole (22) corresponding to the first connection hole (15) is formed on the lower surface of the second clamping body (2); A third fixing hole (23) penetrating through to the second connection hole (22) is formed on the side surface of the second clamping body (2).

9. The clamping structure of a carbon fiber arm winding mold according to claim 8, characterized in that, The fixing component (4) includes: a hollow shaft (41), a second fastener (42), and a third fastener (43), wherein, One end of the hollow shaft (41) is located in the first connection hole (15), and the other end is located in the second connection hole (22). The hollow shaft (41) is disposed through the carbon fiber arm winding mold (3) between its two ends; The second fastener (42) is disposed through the second fixing hole (16), and the end of the second fastener (42) contacts one end of the hollow shaft (41); The third fastener (43) is disposed through the third fixing hole (23), and the end of the third fastener (43) contacts the other end of the hollow shaft (41).

10. A clamping structure for a carbon fiber arm winding mold according to claim 9, characterized in that, The second fastener (42) includes: a second butterfly screw (421), a second retaining ring (422), and a second fastening screw (423), wherein, The second retaining ring (422) is disposed at the end of the second butterfly screw (421), and a through hole is formed on the surface of the second retaining ring (422); The second fastening screw (423) is located in the through hole and is fixedly connected to the end of the second butterfly screw (421).

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