An adjustable stainless steel capillary tube bending device

Abstract

This utility model discloses an adjustable stainless steel capillary bending device, belonging to the technical field of pipe processing equipment. It includes a base plate, a central shaft fixed to the base plate, a rotating ring rotatably sleeved on the central shaft, and a fixing block. The adjustable stainless steel capillary bending device also includes a lead screw, a positioning block, a slide rail, a bending column, a handle, a limiting bolt, and a limiting block. The length is set by driving the positioning block through the lead screw, and clamping is achieved by the linkage of the pressure rod and the movable locking block. The bending angle is limited by the cooperation between the limiting bolt on the rotating ring and the limiting block on the base plate. Through the synergistic effect of the above structures, this utility model solves the problems of difficulty in accurately setting the bending length and angle, and unstable clamping force that can damage the pipe in existing technologies. It not only has a compact structure, precise and convenient adjustment, and stable and reliable clamping, but also effectively ensures processing quality.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing equipment technology, and in particular to an adjustable stainless steel capillary bending device. Background Technology

[0002] Stainless steel capillary tubes are widely used in medical devices, precision instruments, and electronic products. In many applications, stainless steel capillary tubes need to be bent and formed. Tube bending requires specialized bending equipment. Existing bending equipment is inconvenient for positioning the bending length and controlling and adjusting the bending angle. Operators need to use external measuring tools to measure and compare multiple times to determine the bending position. This not only reduces production efficiency but also makes it difficult to ensure the consistency of bending dimensions between batches of products, failing to meet the requirements of high-precision processing.

[0003] Furthermore, the walls of stainless steel capillaries are thin and deformable. During the bending process, the tubes need to be effectively clamped to prevent slippage under force. However, existing clamping structures are difficult to precisely control when applying clamping force. Excessive clamping force will directly flatten or damage the walls of the stainless steel capillaries, affecting the performance and appearance of the finished product. Insufficient clamping force, on the other hand, cannot provide enough friction, causing the stainless steel capillaries to slide axially or rotate when pushed by the bending column, resulting in deviations in the final bending angle or bending position.

[0004] Therefore, this utility model proposes an adjustable stainless steel capillary bending device to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems of existing adjustable stainless steel capillary bending devices, such as difficulty in accurately setting the bending length and bending angle, and unstable clamping force control that can easily damage the tube or cause processing displacement, this utility model aims to provide an adjustable stainless steel capillary bending device with an improved structure that can effectively solve the above problems.

[0006] This utility model provides an adjustable stainless steel capillary bending device, comprising: a base plate, a central shaft, a fixed clamping block, a rotating ring, a fixed plate, a lead screw, a positioning block, a base, a pressure rod, a connecting rod, a push rod, a slide rail, a movable clamping block, a bending column, a handle, a limit bolt, and a limit block.

[0007] The device integrates three functional mechanisms: length adjustment, clamping, and angle limiting.

[0008] Furthermore, the fixing plate, the base, and the slide rail are all fixed to the base plate. One end of the lead screw is threaded to the fixing plate, and the other end is rotatably connected to the positioning block. One end of the pressure rod is rotatably connected to the base. The pressure rod is rotatably connected to the push rod through the connecting rod. The push rod slides in the slide rail and pushes the movable locking block. The bending column, the handle, and the limiting bolt are all fixed to the rotating ring. The limiting block is fixed to the base plate. Through the cooperation and connection of the above components, a complete adjustable bending system is formed.

[0009] Preferably, the middle part of the pressure rod is rotatably connected to the push rod via the connecting rod.

[0010] Preferably, the outer wall of the fixed card block has multiple card slots, and the outer wall of the movable card block has card slots at the same height as the card slots of the fixed card block.

[0011] Preferably, the bent post is fixed to the top of the rotating ring.

[0012] Preferably, the handle is fixed to the outer wall of the rotating ring.

[0013] Preferably, the rotating ring rotates on the outer wall of the central shaft via a bearing.

[0014] Preferably, the push rod moves linearly along the inner wall under the limiting action of the slide rail.

[0015] Preferably, the positioning block is used to position one end of the stainless steel capillary tube, and the other end of the stainless steel capillary tube passes through the fixing block.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model solves the problem in the prior art that it is difficult to coordinate and accurately set the bending length and bending angle of stainless steel capillary tubes on a single machine by setting a positioning block driven by a lead screw for length positioning, and cooperating with an adjustable limiting bolt set on the rotating ring and a limiting block fixed on the base plate for angle limitation. It realizes dual adjustment of length and angle on a single machine, improving processing accuracy and applicability of the device.

[0018] 2. This utility model solves the problem in the prior art of unstable clamping force control for thin-walled capillary tubes, which causes the tube to slide during bending or be damaged and deformed due to excessive force. It adopts a lever-type linkage mechanism composed of a pressure rod, a connecting rod, a push rod, and a slide rail to drive the movable clamping block for clamping. This solves the problem of unstable clamping force control for thin-walled capillary tubes, which causes the tube to slide during bending or be damaged and deformed due to excessive force. It achieves labor-saving clamping process and stable and reliable clamping force, effectively preventing the tube from shifting during processing and ensuring the quality of finished products. Attached Figure Description

[0019] Figure 1 A front perspective view of an adjustable stainless steel capillary bending device proposed in this utility model.

[0020] Figure 2 This is a partial structural diagram of an adjustable stainless steel capillary bending device proposed in this utility model.

[0021] Figure 3 This is a partial structural exploded view of an adjustable stainless steel capillary bending device proposed in this utility model.

[0022] Figure 4 This is a partial structural diagram of an adjustable stainless steel capillary bending device proposed in this utility model.

[0023] Legend:

[0024] 1. Base plate; 2. Central shaft; 3. Fixing block; 4. Rotating ring; 5. Bending column; 6. Handle; 7. Limit bolt; 8. Limit block; 9. Fixing plate; 10. Lead screw; 11. Positioning block; 12. Base; 13. Pressure rod; 14. Connecting rod; 15. Push rod; 16. Slide rail; 17. Movable block. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] Example:

[0027] Please refer to Figures 1 to 4 This utility model provides an adjustable stainless steel capillary bending device, including a base plate 1, which serves as the mounting base for the entire device and supports all working components. A central shaft 2 is fixedly connected to the center of the top surface of the base plate 1. A rotating ring 4 is rotatably mounted on the outer wall of the central shaft 2 via a bearing. The rotating ring 4 is used to drive the subsequent bending mechanism to rotate. A fixing block 3 for clamping the stainless steel capillary is also fixedly connected to the top of the base plate 1. The outer wall of the fixing block 3 has multiple slots.

[0028] The adjustable stainless steel capillary bending device's length adjustment mechanism, clamping mechanism, and bending angle limiting mechanism are all arranged based on the base plate 1. The fixed plate 9, used to set the bending length, is fixed on the base plate 1. One end of the lead screw 10 is threadedly connected to the fixed plate 9, and the other end of the lead screw 10 is rotatably connected to the positioning block 11. The base 12 and slide rail 16, used to clamp the stainless steel capillary, are both fixed to the top of the base plate 1. One end of the pressure rod 13 is rotatably connected to the top of the base 12. The middle part of the pressure rod 13 is rotatably connected to the push rod 15 through the connecting rod 14. The push rod 15 can slide on the inner wall of the slide rail 16 and push the movable locking block 17. The movable locking block 17 cooperates with the fixed locking block 3 to clamp the stainless steel capillary. The bending column 5, handle 6, and limiting bolt 7, used for bending and limiting the angle, are all fixed on the rotating ring 4. The limiting block 8 is fixed on the base plate 1 and located in the rotation path of the rotating ring 4, realizing precise positioning, reliable clamping, and adjustable angle bending of the stainless steel capillary.

[0029] Please refer to Figure 2 , Figure 3 and Figure 4 The base 12 is fixedly connected to the top of the base plate 1. One end of the pressure rod 13 is rotatably connected to the top of the base 12 to form a lever fulcrum. The middle part of the pressure rod 13 is rotatably connected to the push rod 15 through the connecting rod 14. The push rod 15 is set inside the slide rail 16 fixed on the base plate 1, and the push rod 15 can slide along the inner wall of the slide rail 16 under the limiting action of the slide rail 16, thereby achieving stable linear motion. The end of the push rod 15 pushes the movable block 17. The outer wall of the movable block 17 has a slot that is the same height as the slot on the outer wall of the fixed block 3. When the pressure rod 13 is pressed down, the pressure rod 13 amplifies the force through the connecting rod 14 and the push rod 15 and transmits it to the movable block 17, pushing the movable block 17 to make a linear motion in the direction of the fixed block 3, thereby firmly clamping the stainless steel capillary tube placed in the slot of the fixed block 3 and the movable block 17, ensuring the stability and labor saving of the clamping process.

[0030] The fixed plate 9 is fixedly connected to the base plate 1. One end of the lead screw 10 passes through the fixed plate 9 by means of a threaded connection, and the other end of the lead screw 10 is rotatably connected to the positioning block 11. When the operator rotates the lead screw 10, due to the threaded engagement between the lead screw 10 and the fixed plate 9, the rotational motion of the lead screw 10 is converted into a linear displacement of the positioning block 11 along the axis of the lead screw 10, thereby accurately adjusting the position of the positioning block 11. One end of the stainless steel capillary needs to be pressed against the positioning block 11 before bending. Therefore, by adjusting the position of the positioning block 11, the length of the stainless steel capillary that needs to be bent can be accurately set, ensuring the accuracy and repeatability of the length adjustment.

[0031] As a preferred embodiment, in order to achieve precise control and adjustment of the bending angle, please refer to... Figure 1 and Figure 2 The bending column 5 is fixedly connected to the top of the rotating ring 4, the handle 6 is fixedly connected to the outer wall of the rotating ring 4, the limiting bolt 7 is adjustablely set on the rotating ring 4, and the limiting block 8 is fixed on the base plate 1 and located in the rotation path of the rotating ring 4. By rotating the limiting bolt 7 to adjust the extension length of the limiting bolt 7, the final position of the rotating ring 4 when the limiting bolt 7 contacts the limiting block 8 can be changed, thereby achieving precise adjustment of the bending angle. When the handle 6 is pushed, the handle 6 drives the rotating ring 4 to rotate around the central axis 2, and the bending column 5 on the rotating ring 4 rotates accordingly and pushes the stainless steel capillary tube to bend until the limiting bolt 7 contacts the limiting block 8, at which point the rotating ring 4 stops rotating, completing the bending at the preset angle.

[0032] As another preferred embodiment, to make the rotation of the rotating ring 4 more stable and smooth, please refer to... Figure 2 A bearing is provided between the rotating ring 4 and the central shaft 2. The rotating ring 4 is sleeved on the outer wall of the central shaft 2 by rotating through the bearing. The bearing reduces the frictional resistance during rotation, making manual operation more effortless and smooth.

[0033] As a more specific implementation method, to accommodate clamping of different specifications or multiple stainless steel capillary tubes, please refer to... Figure 4 The outer wall of the fixed block 3 has multiple slots, and the outer wall of the movable block 17 also has slots of the same height as the slots of the fixed block 3, and the number and shape of the slots match. The stainless steel capillary tubes can be placed in the corresponding slots for clamping and bending operations, which improves the applicability and processing efficiency of the device.

[0034] In one specific connection method, the middle position of the pressure rod 13 is rotatably connected to the push rod 15 through the connecting rod 14, so that when the operator applies a small force to the free end of the pressure rod 13, a sufficiently large clamping force can be generated at the movable locking block 17 through the connecting rod 14 and the push rod 15.

[0035] In another specific motion mode, the push rod 15 moves precisely in a straight line along the inner wall of the slide rail 16 under the limiting action of the slide rail 16. This guiding method ensures that the push rod 15 will not deviate during the transmission of force, thereby ensuring that the movable block 17 can move smoothly and straight toward the fixed block 3 to achieve a uniform clamping effect.

[0036] Working principle:

[0037] Before performing the bending operation, first rotate the lead screw 10 according to the bending length required by the drawing. Since the lead screw 10 and the fixed plate 9 are connected by a thread, the rotation of the lead screw 10 will be converted into the linear displacement of the positioning block 11 along the axis of the lead screw 10 through the rotating connection of the positioning block 11 until the positioning block 11 is adjusted to the preset length dimension. Then, according to the bending angle required by the drawing, rotate and adjust the limit bolt 7 set on the rotating ring 4 to change the extension length of the limit bolt 7, thereby preset the maximum rotation angle when the rotating ring 4 contacts the limit block 8 fixed on the base plate 1.

[0038] After completing the preparation work, place the stainless steel capillary tube into the slot of the fixed clamping block 3, and push one end of the capillary tube against the already positioned positioning block 11. Then press down on the free end of the pressure rod 13. The pressure rod 13 rotates around the rotation connection point with the base 12. Through the connecting rod 14 and the push rod 15, it pushes the movable clamping block 17 to make linear motion in the slide rail 16 until the movable clamping block 17 and the fixed clamping block 3 are tightly fitted together, firmly clamping the stainless steel capillary tube in the slot between the two. After clamping is completed, the operator holds and pushes the handle 6 fixed on the rotating ring 4. The handle 6 drives the rotating ring 4 to rotate smoothly around the central axis 2 through the bearing. The bending column 5 fixed on the top of the rotating ring 4 also rotates accordingly and applies force to the outer wall of the stainless steel capillary tube, causing the stainless steel capillary tube to bend and deform around the edge of the fixed clamping block 3. When the rotating ring 4 rotates to the point where the limit bolt 7 contacts the limit block 8, the rotating ring 4 can no longer rotate, thus completing the bending operation of the preset length and preset angle.

Claims

1. An adjustable stainless steel capillary bending device, comprising: Base plate (1), central shaft (2), fixing block (3) and rotating ring (4); Its features are, It also includes a fixing plate (9), a lead screw (10) and a positioning block (11) for setting the bending length. The fixing plate (9) is fixed on the base plate (1). One end of the lead screw (10) is threaded to the fixing plate (9), and the other end of the lead screw (10) is rotatably connected to the positioning block (11). The adjustable stainless steel capillary bending device also includes a base (12), a pressure rod (13), a connecting rod (14), a push rod (15), a slide rail (16), and a movable locking block (17) for clamping the stainless steel capillary. The base (12) and the slide rail (16) are both fixed to the top of the base plate (1). One end of the pressure rod (13) is rotatably connected to the base (12). The pressure rod (13) is rotatably connected to the push rod (15) through the connecting rod (14). The push rod (15) slides in the slide rail (16) and pushes the movable locking block (17) to fit against the fixed locking block (3).

2. The adjustable stainless steel capillary bending device according to claim 1, characterized in that, The adjustable stainless steel capillary bending device further includes a bending column (5), a handle (6), a limiting bolt (7), and a limiting block (8) for bending and limiting angle. The bending column (5) and the handle (6) are both fixed to the rotating ring (4). The limiting bolt (7) is adjustablely set on the rotating ring (4). The limiting block (8) is fixed on the base plate (1) and located in the rotation path of the rotating ring (4). The cooperation between the limiting bolt (7) and the limiting block (8) is used to limit the rotation angle of the rotating ring (4).

3. The adjustable stainless steel capillary bending device according to claim 1, characterized in that, The middle part of the pressure rod (13) is rotatably connected to the push rod (15) via the connecting rod (14).

4. The adjustable stainless steel capillary bending device according to claim 1, characterized in that, The outer wall of the fixed card block (3) is provided with multiple card slots; the outer wall of the movable card block (17) is provided with a card slot at the same height as the card slots of the fixed card block (3).

5. An adjustable stainless steel capillary bending device according to claim 2, characterized in that, The bending column (5) is fixed to the top of the rotating ring (4).

6. The adjustable stainless steel capillary bending device according to claim 2, characterized in that, The handle (6) is fixed to the outer wall of the rotating ring (4).

7. The adjustable stainless steel capillary bending device according to claim 1, characterized in that, The rotating ring (4) rotates on the outer wall of the central shaft (2) via a bearing.

8. The adjustable stainless steel capillary bending device according to claim 1, characterized in that, The push rod (15) moves linearly along the inner wall under the limiting action of the slide rail (16).

9. An adjustable stainless steel capillary bending device according to claim 1, characterized in that, The positioning block (11) is used to position one end of the stainless steel capillary tube, and the other end of the stainless steel capillary tube passes through the fixing block (3).

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