Manual hole pulling equipment for increasing plain end and expanding hole

By designing a manual hole-pulling device that includes a pressing, grinding and shaping mechanism, the problems of burrs and out-of-round holes after the automatic hole-pulling device are solved, and the hole-pulling efficiency is improved.

CN223477145UActive Publication Date: 2025-10-28ZHANGJIAGANG TAILI MACHINERY MANUFACTURING CO LTD
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Patent Information

Application Number
CN202423061753.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-10-28
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

After the existing automatic hole-pulling equipment pierces the pipe, the holes on the pipe surface often have burrs and are out of roundness, which requires additional flat-end device adjustment and affects the hole-pulling efficiency.

Method used

A manual hole-pulling device for adding flat ends and expanding holes is designed, which includes a base, a support rod, a workbench, a clamping mechanism, a hole-pulling device, a movable plate, a first motor grinding block, an adjustment mechanism and a shaping mechanism. The motor drives the grinding block to grind the holes and the shaping block is used to expand the holes.

Benefits of technology

It achieves smooth grinding and rounding of pipe holes, improves the efficiency of hole extraction and reduces the need for subsequent adjustments.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223477145U_ABST
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Abstract

The utility model discloses manual hole pulling equipment for increasing plain ends and expanding holes, and relates to the technical field of manual pipe machining, the manual hole pulling equipment comprises a base, a plurality of supporting rods are fixedly connected to the upper surface of the base, the upper ends of the supporting rods are jointly and fixedly connected with a working table, the upper surface of the working table is fixedly connected with a lower fixing block, and the lower fixing block is fixedly connected with the upper surface of the working table. A pipe fitting is placed on the upper surface of the lower fixing block, a pressing mechanism is arranged on the upper surface of the workbench, the pipe fitting is fixed through the pressing mechanism, a hole pulling device is fixedly connected to the upper surface of the base, and a movable plate is arranged on the upper surface of the workbench in a sliding mode. According to the utility model, the pipe fitting can be subjected to hole poking treatment through the hole poking device, then the first motor is started to enable the polishing block to rotate, so that a drilled hole can be polished and becomes smoother, then the second motor is started to enable the shaping block to rotate, and then the drilled hole can be subjected to hole expansion treatment.
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Description

Technical Field

[0001] This utility model relates to the field of manual pipe processing technology, specifically to a manual hole-pulling device that adds flat end and expansion hole. Background Art

[0002] Pipe fittings are a general term for components in a piping system that serve functions such as connection, control, direction change, flow diversion, sealing, and support. To improve the applicability of pipe fittings, it is usually necessary to perform hole-pulling treatment on the surface of the pipe fittings.

[0003] Among them, an automatic hole-pulling device with announcement number CN207668288U is characterized in that it includes a worktable, a hydraulic cylinder is provided on one side of the worktable, the hydraulic cylinder is connected to one end of the hole-pulling assembly, the other end of the hole-pulling assembly is connected to one end of the clamping mold component, the other end of the clamping mold component is connected to the positioning fixture, the hole-pulling assembly includes an inner core rod and an outer core rod, the tail end of the outer core rod is connected to a control rod, the control rod and the hole-pulling slider are embedded in the clamping mold component, the tail end of the hole-pulling slider is inclined, the tail end of the hole-pulling slider is provided with a hole-pulling cutter, and the bottom end face of the hole-pulling cutter is matched with the hole-pulling slider.

[0004] However, after the existing automatic hole-drilling equipment drills holes in the pipe, the holes on the pipe surface often have burrs and are not round. At this time, a flat-end device is needed to adjust them, which affects the efficiency of hole drilling. Utility Model Content

[0005] In view of the problems existing in the above-mentioned automatic hole-pulling equipment, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a manual hole-pulling device with added flat end and expansion hole, which solves the problem that after the existing automatic hole-pulling device pulls the hole in the pipe, the hole on the surface of the pipe often has burrs and is not round. At this time, it is necessary to use a flat end device to adjust it, which affects the efficiency of hole pulling.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A manual hole-pulling device for adding flat and expanding holes includes a base. Multiple support rods are fixedly connected to the upper surface of the base. A worktable is fixedly connected to the upper end of each support rod. A lower fixing block is fixedly connected to the upper surface of the worktable. A pipe is placed on the upper surface of the lower fixing block. A clamping mechanism is provided on the upper surface of the worktable, and the pipe is fixed by the clamping mechanism. A hole-pulling device is fixedly connected to the upper surface of the base. A movable plate is slidably arranged on the upper surface of the worktable. A first motor is fixedly connected to the upper surface of the movable plate. A grinding block is fixedly connected to the output end of the first motor. An adjustment mechanism is provided on the lower surface of the worktable, and the movable plate moves through the adjustment mechanism. A shaping mechanism is provided on the upper surface of the worktable.

[0009] Preferably, the clamping mechanism includes a support frame, a cylinder, and an upper fixing block. The support frame is fixedly connected to the upper surface of the workbench, the cylinder is fixedly connected to the upper surface of the support frame, the output end of the cylinder passes through the upper surface of the support frame, and the upper fixing block is fixedly connected to the output end of the cylinder.

[0010] Preferably, the adjustment mechanism includes two support plates, a slider, a knob, and a lead screw. The two support plates are fixedly connected to the lower surface of the worktable. The lead screw is rotatably connected between the two support plates. The slider is threaded onto the outer surface of the lead screw. The upper end of the slider passes through the upper surface of the worktable and is fixedly connected to the lower surface of the movable plate. One end of the lead screw passes through one side of the support plate and is fixedly connected to the knob.

[0011] Preferably, the shaping mechanism includes a second motor and a shaping block. The second motor is fixedly connected to the lower surface of the worktable, and the output end of the second motor passes through the upper surface of the worktable. The shaping block is fixedly connected to the output end of the second motor.

[0012] Preferably, the upper surface of the worktable has a strip-shaped hole that matches the slider.

[0013] Preferably, the grinding block is frustum-shaped.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. This utility model allows for the drilling of pipe fittings using a drilling device. Subsequently, starting the first motor causes the grinding block to rotate, which grinds the drilled hole to make it smoother. Then, starting the second motor causes the shaping block to rotate, which expands the drilled hole.

[0016] 2. In this utility model, rotating the knob causes the lead screw to rotate, which in turn moves the slider, thereby driving the moving plate to move, and then the grinding block can come into contact with the drilled hole. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 For the present utility model Figure 1 A sectional view;

[0020] Figure 3 For the present utility model Figure 1 A three-dimensional view of the central support frame;

[0021] Figure 4 For the present utility model Figure 1 A three-dimensional view of the upper and middle fixed blocks.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Base; 2. Support rod; 3. Worktable; 4. Lower fixed block; 5. Pipe fitting; 6. Hole-pulling device; 7. Moving plate; 8. First motor; 9. Grinding block; 10. Support frame; 11. Cylinder; 12. Upper fixed block; 13. Support plate; 14. Slider; 15. Knob; 16. Lead screw; 17. Second motor; 18. Shaping block. DETAILED DESCRIPTION

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model discloses a manual hole-pulling device that adds a flat opening and an expansion hole.

[0026] This utility model provides, for example Figure 1-4The device shown includes a base 1, a plurality of support rods 2 fixedly connected to the upper surface of the base 1, a worktable 3 fixedly connected to the upper end of each support rod 2, a lower fixing block 4 fixedly connected to the upper surface of the worktable 3, a pipe fitting 5 placed on the upper surface of the lower fixing block 4, a clamping mechanism provided on the upper surface of the worktable 3, the pipe fitting 5 being fixed by the clamping mechanism, a hole-pulling device 6 fixedly connected to the upper surface of the base 1, a movable plate 7 slidably arranged on the upper surface of the worktable 3, a first motor 8 fixedly connected to the upper surface of the movable plate 7, a grinding block 9 fixedly connected to the output end of the first motor 8, an adjustment mechanism provided on the lower surface of the worktable 3, the movable plate 7 being moved by the adjustment mechanism, and a shaping mechanism provided on the upper surface of the worktable 3.

[0027] The pipe fitting 5 is placed on the upper surface of the lower fixing block 4, and then the pipe fitting 5 can be fixed by the clamping mechanism. Then the hole-pulling device 6 can be used to pry holes in the pipe fitting. Next, the first motor 8 is started to make the grinding block 9 rotate, and then the burrs of the pipe fitting 5 can be treated.

[0028] In order to fix fitting 5, such as Figure 1-2 As shown, the clamping mechanism includes a support frame 10, a cylinder 11, and an upper fixing block 12. The support frame 10 is fixedly connected to the upper surface of the workbench 3, the cylinder 11 is fixedly connected to the upper surface of the support frame 10, the output end of the cylinder 11 passes through the upper surface of the support frame 10, and the upper fixing block 12 is fixedly connected to the output end of the cylinder 11.

[0029] Start cylinder 11, which will then move the upper fixing block 12 down, and then fix the pipe 5 by cooperating with the lower fixing block 4.

[0030] In order for the movable plate 7 to be movable, such as Figure 1-2 As shown, the adjustment mechanism includes two support plates 13, a slider 14, a knob 15, and a lead screw 16. Both support plates 13 are fixedly connected to the lower surface of the worktable 3. The lead screw 16 is rotatably connected between the two support plates 13. The slider 14 is threaded onto the outer surface of the lead screw 16. The upper end of the slider 14 passes through the upper surface of the worktable 3 and is fixedly connected to the lower surface of the movable plate 7. One end of the lead screw 16 passes through one side of the support plate 13 and is fixedly connected to the knob 15.

[0031] Rotate knob 15 to make lead screw 16 rotate, which in turn moves slider 14, thereby moving moving plate 7.

[0032] In order to shape fitting 5, such as Figure 1-2 As shown, the shaping mechanism includes a second motor 17 and a shaping block 18. The second motor 17 is fixedly connected to the lower surface of the worktable 3, and the output end of the second motor 17 passes through the upper surface of the worktable 3. The shaping block 18 is fixedly connected to the output end of the second motor 17.

[0033] Start the second motor 17, which will then rotate the shaping block 18, allowing the punched hole to be expanded, making the hole smoother.

[0034] To facilitate the movement of slider 14, such as Figure 2 As shown, the upper surface of the worktable 3 has a strip-shaped hole, which matches the slider 14.

[0035] The strip-shaped hole facilitates the movement of slider 14.

[0036] In order to make the polishing block 9 adaptable to round holes of different sizes, such as Figure 1-2 As shown, the polishing block 9 is in the shape of a frustum.

[0037] Because the polishing block 9 is truncated cone-shaped, it can be used for round holes of different sizes.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A manual hole-pulling device for adding flat openings and expanding holes, comprising a base (1), characterized in that, The upper surface of the base (1) is fixedly connected to multiple support rods (2), and the upper end of each support rod (2) is fixedly connected to a worktable (3). The upper surface of the worktable (3) is fixedly connected to a lower fixing block (4), and a pipe (5) is placed on the upper surface of the lower fixing block (4). The upper surface of the worktable (3) is provided with a pressing mechanism, and the pipe (5) is fixed by the pressing mechanism. The upper surface of the base (1) is fixedly connected to a hole-pulling device (6). The upper surface of the worktable (3) is slidably provided with a moving plate (7), and the upper surface of the moving plate (7) is fixedly connected to a first motor (8). The output end of the first motor (8) is fixedly connected to a grinding block (9). The lower surface of the worktable (3) is provided with an adjustment mechanism, and the moving plate (7) moves by the adjustment mechanism. The upper surface of the worktable (3) is provided with a shaping mechanism.

2. The manual hole-pulling device for adding flat opening and expanding hole as described in claim 1, characterized in that, The clamping mechanism includes a support frame (10), a cylinder (11), and an upper fixing block (12). The support frame (10) is fixedly connected to the upper surface of the workbench (3). The cylinder (11) is fixedly connected to the upper surface of the support frame (10). The output end of the cylinder (11) passes through the upper surface of the support frame (10). The upper fixing block (12) is fixedly connected to the output end of the cylinder (11).

3. The manual hole-pulling device for adding flat opening and expanding hole as described in claim 1, characterized in that, The adjustment mechanism includes two support plates (13), a slider (14), a knob (15), and a lead screw (16). The two support plates (13) are fixedly connected to the lower surface of the workbench (3). The lead screw (16) is rotatably connected between the two support plates (13). The slider (14) is threaded onto the outer surface of the lead screw (16). The upper end of the slider (14) passes through the upper surface of the workbench (3) and is fixedly connected to the lower surface of the movable plate (7). One end of the lead screw (16) passes through one side of the support plate (13) and is fixedly connected to the knob (15).

4. The manual hole-pulling device for adding flat opening and expanding hole as described in claim 1, characterized in that, The shaping mechanism includes a second motor (17) and a shaping block (18). The second motor (17) is fixedly connected to the lower surface of the worktable (3). The output end of the second motor (17) passes through the upper surface of the worktable (3). The shaping block (18) is fixedly connected to the output end of the second motor (17).

5. The manual hole-pulling device for adding flat opening and expansion hole as described in claim 1, characterized in that, The upper surface of the worktable (3) is provided with a strip hole, which matches the slider (14).

6. The manual hole-pulling device for adding flat opening and expanding hole as described in claim 1, characterized in that, The polishing block (9) is frustum-shaped.

Citation Information

Patent Citations

  • Automatic pull out hole equipment

    CN207668288U