A clamp for making wooden boat ribs

Abstract

This utility model discloses a clamp for manufacturing wooden boat ribs, relating to the technical field of wooden boat rib clamps. It aims to solve the technical problem that current planar clamps cannot tightly fit the curved surface of the ribs, causing easy shaking during drilling. The clamp includes a support base and a wooden boat rib body placed on top of the support base. A clamping mechanism is provided on the top of the support base, and a limit mechanism is provided inside the clamping mechanism. This utility model uses an adjusting block with a narrow side facing the sliding frame and a wide side facing away from the sliding frame, designed as an open structure, forming symmetrical support arms on both sides. When the clamping wheel clamps the wooden boat rib, the curved surface of the rib pushes the clamping wheel, forcing the adjusting block to adaptively swing around the narrow side hinge point, compensating for surface errors, ensuring the clamping wheel always fits tightly against the wood surface, adapting to any irregular curvature, avoiding local suspension, and thus preventing shaking during drilling. This solves the problem of current planar clamps not being able to tightly fit the curved surface of the ribs, causing easy shaking during drilling.

Description

Technical Field

[0001] This utility model relates to the field of wooden boat rib clamping technology, and more specifically, to a clamping device for manufacturing wooden boat ribs. Background Technology

[0002] Wooden boat ribs (also known as rib frames) are the core load-bearing components of traditional wooden ships. They are usually made of natural bentwood or laminated bentwood and are distributed in an arc shape along the hull. During shipbuilding, installation holes (such as mortise and tenon holes for connecting outer plates and fixing bulkheads, and bolt holes) need to be precisely machined on the ribs. The diameter and position accuracy of the holes directly affect the structural strength and sealing of the hull.

[0003] Existing rib drilling operations use vises, bolt clamps, etc. to fix the ribs, and drilling is performed by moving the fixture or changing the workpiece position. However, wooden ribs are irregularly curved, and ordinary fixtures use flat or fixed-curvature clamping mechanisms. Flat jaws cannot fit tightly against the curved surface of the rib, which can easily lead to excessive local pressure on the workpiece or loosening, and easy shaking during drilling. In view of this, we propose a fixture for making wooden boat ribs. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a clamp for making wooden boat ribs, so as to solve the technical problem that the current planar clamps cannot fit tightly against the curved surface of the ribs, resulting in easy shaking during drilling.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a clamp for making wooden boat ribs, including a support base and a wooden boat rib body placed on top of the support base, wherein a clamping mechanism is provided on the top of the support base, and a limit mechanism is provided on the inner side of the clamping mechanism;

[0006] The clamping mechanism includes a sliding frame, an adjusting block, and clamping wheels. The mounting end of the adjusting block facing the sliding frame is a narrow side, which is rotatably connected to the sliding frame through a hinge shaft. The working end away from the sliding frame is a wide side and is designed as an open structure to form symmetrical support arms on both sides. The clamping wheels are rotatably mounted on the inner sides of the two tips of the wide side opening through a rotating shaft.

[0007] The limiting mechanism includes an arc-shaped piece and a limiting post that can be driven by the arc-shaped piece to insert into or retract from the limiting interior opened on the surface of the clamping wheel.

[0008] Preferably, the clamping mechanism further includes an electric push rod, which is fixedly installed on the top of the support base. The sliding frame is slidably installed on the top of the support base and fixedly installed on the output end of the electric push rod. A connecting rod one is rotatably installed at the bottom of the sliding frame. A connecting rod two is rotatably installed at the end of the connecting rod one away from the sliding frame. A connecting rod three is rotatably installed at the end of the connecting rod two away from the connecting rod one.

[0009] Preferably, the limiting mechanism further includes a rotating column, which is a hollow structure. The rotating column is rotatably mounted inside the adjusting block by a torsion spring. A half gear is fixedly mounted on the top of the rotating column, and a gear meshing with the half gear is fixedly mounted on the clamping wheel shaft. The arc-shaped plate is fixedly mounted on the outside of the rotating column.

[0010] Preferably, the center position of the second connecting rod is mounted on the inner side of the support seat via a pivot, and the third connecting rod is rotatably mounted to another sliding frame.

[0011] Preferably, one end of the torsion spring is fixed to the rotating column, and the other end is fixed to the adjusting block, so that the arc-shaped plate is normally kept in the released limit state.

[0012] Preferably, the limiting posts are disposed on both sides of the clamping wheel, and their movement direction is perpendicular to or inclined to the axis of the clamping wheel.

[0013] Compared with the prior art, this utility model provides a clamp for making wooden boat ribs, which has the following beneficial effects:

[0014] 1. This utility model features an adjustment block with a narrow side facing the sliding frame and a wide side facing away from the sliding frame at the mounting end. The block is designed with an open structure, forming symmetrical support arms on both sides. When the clamping wheel clamps the wooden boat ribs, the rib's arc surface pushes the clamping wheel, forcing the adjustment block to adaptively swing around the narrow side hinge point. This compensates for surface errors, ensuring the clamping wheel remains firmly in contact with the wood surface, adapting to any irregular arc, avoiding local suspension, and preventing shaking during drilling. This solves the problem of current planar grippers failing to tightly fit the rib's arc surface, leading to easy shaking during drilling.

[0015] 2. This utility model uses a clamping wheel that contacts and presses against the arc-shaped surface of the wooden boat rib body. When the clamping wheel stops rotating, the gear drives the half gear and the rotating column to rotate, causing the arc-shaped plate to drive the limiting column to insert into the limiting groove of the clamping wheel, locking the clamping wheel. This allows the workpiece to automatically switch to a rigid clamping state upon contact, eliminating machining displacement. The limiting column locks the clamping wheel, turning the clamping point into a fixed fulcrum, ensuring clamping stability. This further solves the problem that current planar grippers cannot tightly fit the arc surface of the rib, causing easy shaking during drilling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the appearance and structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the cross-sectional structure of the adjusting block of this utility model;

[0019] Figure 4This is a schematic diagram of the external structure of the limiting mechanism of this utility model;

[0020] Figure 5 This is an exploded view of the limiting mechanism of this utility model.

[0021] In the diagram: 1. Support base; 2. Clamping mechanism; 21. Electric push rod; 22. Sliding frame; 23. Link 1; 24. Link 2; 25. Link 3; 26. Adjusting block; 27. Clamping wheel; 3. Limiting mechanism; 31. Rotating column; 32. Arc-shaped plate; 33. Limiting column; 34. Torsion spring; 35. Half gear; 36. Gear; 4. Wooden boat rib body. Detailed Implementation

[0022] Example: Please refer to Figure 1-5 The present invention provides a technical solution: a clamp for making wooden boat ribs, including a support base 1 and a wooden boat rib body 4 placed on top of the support base 1. A clamping mechanism 2 is provided on the top of the support base 1, and a limiting mechanism 3 is provided on the inner side of the clamping mechanism 2.

[0023] The clamping mechanism 2 includes a sliding frame 22, an adjusting block 26, and a clamping wheel 27. The mounting end of the adjusting block 26 facing the sliding frame 22 is a narrow side, which is rotatably connected to the sliding frame 22 through a hinge shaft. The working end away from the sliding frame 22 is a wide side and is designed as an open structure to form symmetrical support arms on both sides. The clamping wheel 27 is rotatably mounted on the inner side of the two tips of the wide side opening through a rotating shaft.

[0024] The limiting mechanism 3 includes an arc-shaped piece 32 and a limiting post 33 that can be driven by the arc-shaped piece 32 to insert or retract into the limiting interior opened on the surface of the clamping wheel 27. The present invention uses an adjustment block 26 with a narrow side facing the sliding frame 22 and a wide side facing away from the sliding frame 22, and is designed as an open structure to form symmetrical support arms on both sides. When the clamping wheel 27 clamps the wooden boat rib, the arc surface of the rib pushes the clamping wheel 27, forcing the adjustment block 26 to swing adaptively around the narrow side hinge point, compensating for surface errors, so that the clamping wheel 27 is always in close contact with the wood surface, adapting to any irregular arc, avoiding local suspension, and thus preventing shaking during drilling. This solves the problem that the current planar gripper cannot closely fit the arc surface of the rib, causing easy shaking during drilling.

[0025] Furthermore, the clamping mechanism 2 also includes an electric push rod 21, which is fixedly installed on the top of the support base 1. The sliding frame 22 is slidably installed on the top of the support base 1 and fixedly installed on the output end of the electric push rod 21. A connecting rod 1 23 is rotatably installed at the bottom of the sliding frame 22. A connecting rod 24 is rotatably installed at the end of the connecting rod 1 23 away from the sliding frame 22. A connecting rod 3 25 is rotatably installed at the end of the connecting rod 24 away from the connecting rod 1 23. This ensures that the clamping wheel 27 is always in close contact with the wood surface, adapting to any irregular arc, avoiding local suspension, and thus preventing shaking during drilling. This solves the problem that the current planar clamp cannot tightly fit the rib arc surface, causing easy shaking during drilling.

[0026] Furthermore, the limiting mechanism 3 also includes a rotating column 31, which is a hollow structure. The rotating column 31 is rotatably mounted inside the adjusting block 26 via a torsion spring 34. A half gear 35 is fixedly mounted on the top of the rotating column 31, and a gear 36 that meshes with the half gear 35 is fixedly mounted on the shaft of the clamping wheel 27. An arc-shaped plate 32 is fixedly mounted on the outside of the rotating column 31, so that the workpiece automatically switches to a rigid clamping state upon contact, eliminating machining displacement. The limiting column 33 locks the clamping wheel 27 from the clamping point to a fixed fulcrum, ensuring clamping stability. This further solves the problem that the current planar gripper cannot closely fit the rib arc surface, causing easy shaking during drilling.

[0027] Furthermore, the center position of the second connecting rod 24 is mounted on the inner side of the support base 1 via a pivot, and the third connecting rod 25 is rotatably mounted with another sliding frame 22, so that the two sliding frames 22 can move in opposite directions.

[0028] Furthermore, one end of the torsion spring 34 is fixed to the rotating column 31, and the other end is fixed to the adjusting block 26, so that the arc-shaped plate 32 is normally kept in the released limit state. The energy stored in the torsion spring 34 is released to ensure the unlocking response speed, so as to facilitate subsequent limit operations.

[0029] Furthermore, the limiting posts 33 are provided on both sides of the clamping wheel 27, and their movement direction is perpendicular to or inclined to the axis of the clamping wheel 27.

[0030] In actual operation, when this device is used, the wooden boat rib body 4 is placed on top of the support base 1, between the two adjusting blocks 26. The electric push rod 21 is activated, and the output end of the electric push rod 21 pushes the sliding frame 22 to slide on top of the support base 1. The sliding frame 22 slides and pushes the first connecting rod 23 to move. During the movement of the sliding frame 22, the second connecting rod 24 is driven to rotate around the center point, thereby causing the third connecting rod 25 on the side of the second connecting rod 24 away from the first connecting rod 23 to move, pulling the other sliding frame 22 to move in the center, so that the clamping wheels 27 located at the two tip positions of the adjusting block 26 make contact with the wooden boat rib body 4. After contacting the arc surface of the wooden boat rib body 4, the clamping wheels 27 first... 7 rotates around the arc-shaped surface of the wooden boat rib body 4. During the rotation of the clamping wheel 27, it drives the gear 36 fixed on the same axis to rotate, which in turn drives the half gear 35 meshing with it to rotate. The rotation of the half gear 35 drives the rotating column 31 to rotate. At this time, the torsion spring 34 is limited, which causes the arc-shaped piece 32 fixedly installed on the outside of the rotating column 31 to rotate, so that the limiting column 33 is inserted into the limiting groove corresponding to the clamping wheel 27, completing the locking operation of the clamping wheel 27. At this time, during the process of the clamping wheel 27 pushing the wooden boat rib body 4, the adjusting block 26 rotates inside the sliding frame 22 to adapt to the centering and clamping operation of the wooden boat rib body 4 with different arc surfaces, which facilitates the subsequent drilling operation.

[0031] When it is necessary to adjust the drilling position, start the electric push rod 21 to move the two sliding brackets 22 away from the wooden boat rib body 4. At this time, the rotating column 31 rotates under the action of the torsion spring 34 that is hinged to it, which in turn drives the half gear 35 to rotate, so that the arc plate 32 loses its locking limit on the clamping wheel 27 and returns to its original position. At this time, the wooden boat rib body 4 can be moved to perform the next drilling operation.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A wooden ship's frame manufacturing jig comprising a support base (1) and a wooden ship's frame body (4) placed on top of the support base (1), characterized in that: The support base (1) is provided with a clamping mechanism (2) at the top, and a limit mechanism (3) is provided inside the clamping mechanism (2). The clamping mechanism (2) includes a sliding frame (22), an adjusting block (26), and a clamping wheel (27). The adjusting block (26) has a narrow side at the mounting end facing the sliding frame (22), which is rotatably connected to the sliding frame (22) through a hinge shaft. The working end away from the sliding frame (22) is a wide side and is designed as an open structure to form symmetrical support arms on both sides. The clamping wheel (27) is rotatably mounted on the inner side of the two tips of the wide side opening through a rotating shaft. The limiting mechanism (3) includes an arc-shaped piece (32) and a limiting post (33) that can be driven by the arc-shaped piece (32) to insert into or retract from the limiting interior of the clamping wheel (27).

2. A jig for the manufacture of a wooden ship's frame according to claim 1, characterised in that: The clamping mechanism (2) also includes an electric push rod (21), which is fixedly installed on the top of the support base (1). The sliding frame (22) is slidably installed on the top of the support base (1) and fixedly installed on the output end of the electric push rod (21). A connecting rod one (23) is rotatably installed at the bottom of the sliding frame (22). A connecting rod two (24) is rotatably installed at the end of the connecting rod one (23) away from the sliding frame (22). A connecting rod three (25) is rotatably installed at the end of the connecting rod two (24) away from the connecting rod one (23).

3. A clamp for making wooden boat ribs according to claim 1, characterized in that: The limiting mechanism (3) also includes a rotating column (31), which is a hollow structure. The rotating column (31) is rotatably mounted on the inner side of the adjusting block (26) by a torsion spring (34). A half gear (35) is fixedly mounted on the top of the rotating column (31). A gear (36) that meshes with the half gear (35) is fixedly mounted on the shaft of the clamping wheel (27). The arc-shaped piece (32) is fixedly mounted on the outer side of the rotating column (31).

4. A clamp for making wooden boat ribs according to claim 2, characterized in that: The second connecting rod (24) is mounted on the inner side of the support base (1) via a pivot at its center position, and the third connecting rod (25) is rotatably mounted with another sliding frame (22).

5. A clamp for making wooden boat ribs according to claim 3, characterized in that: One end of the torsion spring (34) is fixed to the rotating column (31), and the other end is fixed to the adjusting block (26), so that the arc plate (32) is normally kept in the released limit state.

6. A clamp for making wooden boat ribs according to claim 3, characterized in that: The limiting post (33) is located on both sides of the clamping wheel (27), and its movement direction is perpendicular to or inclined to the axis of the clamping wheel (27).

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