Grinding machine for repairing flange sealing surface

Abstract

The utility model provides a grinding machine for repairing a flange sealing surface, which comprises a base, an adjusting component, a clamping sleeve, a grinding head and a breather pipe, the grinding head is connected to one end of the breather pipe, the breather pipe is connected with compressed air supply equipment, and the breather pipe is arranged on the clamping sleeve; the adjusting assembly is installed on the base and comprises a sliding block, a locking structure, a lead screw and a positioning rod, the lead screw and the positioning rod are installed on the base, and the sliding block is connected to the lead screw and the positioning rod and can slide up and down along the lead screw and the positioning rod; the sliding block is locked on the lead screw through a locking structure. The clamping suite is connected to the sliding block, the sliding block drives the clamping suite and the grinding head to move up and down, and the clamping suite is used for achieving rotation of the grinding head; a notch is formed in one side of the base in a penetrating mode, in the working process, a to-be-repaired part of the flange sealing face is located at the notch, and a grinding head grinding wheel of the grinding head is horizontally attached to the to-be-repaired part. The polishing device can reduce labor intensity, improve working efficiency and polishing quality, and eliminate potential safety hazards in the polishing process.

Description

Technical Field

[0001] The utility model relates to the technical field of flange repair, in particular to a grinding machine for repairing flange sealing surfaces. Background Art

[0002] Pressure vessels typically have a large number of flanges. During the manufacturing process, the flange sealing surfaces are often scratched or damaged by hard objects. Shallow scratches and bumps are repaired by hoisting the equipment onto a processing platform for machining. Deeper scratches or bumps are repaired by welding and then hoisting the equipment onto a processing platform for machining. Each flange needs to be hoisted and aligned, which is expensive and time-consuming. Using a flange sealing surface repair grinder eliminates the need to move the equipment, saving time and effort. Utility Model Content

[0003] In response to the above technical problems, a flange sealing surface repair grinding machine is provided. The technical means adopted by the utility model are as follows:

[0004] A grinding machine for repairing flange sealing surfaces, comprising: a base, an adjustment assembly, a clamping kit, a grinding head, and a vent pipe, wherein the grinding head is connected to one end of the vent pipe, the other end of the vent pipe is connected to a compressed air supply device, and the vent pipe is mounted on the clamping kit;

[0005] The adjustment assembly is mounted on the base, and includes a slider, a locking structure, a screw rod, and a positioning rod. The screw rod and the positioning rod are mounted on the base in parallel and at intervals. The slider is connected to the screw rod and the positioning rod and can slide up and down along the screw rod and the positioning rod. The slider is locked on the screw rod by the locking structure.

[0006] The clamping kit is connected to the slider, and the slider drives the clamping kit and the grinding head to move up and down, and the clamping kit is used to realize the rotation of the grinding head;

[0007] A notch is formed on one side of the base. During operation, the portion of the flange sealing surface to be repaired is located at the notch, and the grinding wheel of the grinding head is horizontally fitted to the portion to be repaired.

[0008] Furthermore, the locking structure includes two positioning nuts, which are connected to the screw rod at intervals above and below. A slot is opened on one side of the slider, one of the positioning nuts is located in the slot, and the other positioning nut is located on the upper surface of the slider. The slider is locked and fixed by the two positioning nuts.

[0009] Furthermore, the notch is a U-shaped groove.

[0010] Furthermore, the clamping kit includes a clamping sleeve, a clamping nut and a tensioning screw, the clamping sleeve is sleeved on one side of the tensioning screw, the other side of the tensioning screw passes through the slider, and the end that passes through the slider is connected to the clamping nut; the clamping sleeve and the tensioning screw are provided with a connecting through hole, and the vent pipe is connected through the through hole.

[0011] Furthermore, a clamping pad is provided between the clamping sleeve and the slider.

[0012] Furthermore, a clamping washer is provided between the clamping nut and the slider.

[0013] Furthermore, the notch is a U-shaped notch.

[0014] Furthermore, the bottoms of the screw rod and the positioning rod are fixedly connected to the base via bolts respectively.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] The position of the automatic grinder of the utility model can be freely adjusted according to the specifications of the grinding cylinder to meet the requirements of various grinding thicknesses. The staff only needs to control the console button and adjust the rotation speed of the cylinder, and the grinder can grind the weld of the workpiece, avoiding the trouble of manually rotating the cylinder, reducing labor intensity, improving work efficiency and grinding quality, and eliminating safety hazards during the grinding process. The utility model has a novel and reasonable structure, is easy to use, and is suitable for promotion.

[0017] Based on the above reasons, the utility model can be widely promoted in the fields of flange repair and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 This is a schematic diagram of the automatic grinding machine of the present utility model.

[0020] Figure 2 Schematic diagram of the slider structure.

[0021] Figure 3 It is a structural diagram of the clamping sleeve.

[0022] Figure 4 Schematic diagram of the structure of the tensioning screw.

[0023] In the figure: 1. Base; 2. Grinding head; 3. Clamping sleeve; 4. Slider; 5. Screw; 6. Vent pipe; 7. Positioning nut; 8. Positioning rod; 9. Clamping pad; 10. Clamping nut; 11. Tensioning screw. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] During pressure vessel manufacturing, flange sealing surfaces are often damaged by scratches or collisions with hard objects. Machining or welding followed by machining is often used to repair flange sealing surfaces, which is more convenient for single flanges. If damage is discovered to the flange sealing surface after the entire pressure vessel is manufactured, hoisting it to machining equipment is expensive and time-consuming. The present utility model addresses the problem of repairing flange sealing surfaces without moving the equipment.

[0026] Aiming at the existing problems of pressure vessel flange repair: the whole equipment needs to be hoisted to the machining platform for alignment, which is time-consuming, low in efficiency and has great safety hazards. Figure 1 As shown, the utility model provides a grinder for repairing flange sealing surfaces, which mainly includes: a base 1, an adjustment component, a clamping kit, a grinding head 2 and a vent pipe 6. The grinding head 2 is connected to one end of the vent pipe 6, and the other end of the vent pipe 6 is connected to the compressed air supply equipment. The vent pipe 6 is installed on the clamping kit; the adjustment component is installed on the base 1, including a slider 4, a locking structure, a screw rod 5 and a positioning rod 8. The screw rod 5 and the positioning rod 8 are installed on the base 1 at intervals. The slider 4 is connected to the screw rod 5 and the positioning rod 8, and can slide up and down along the screw rod 5 and the positioning rod 8; the slider 4 is locked on the screw rod 5 by the locking structure; the clamping kit is connected to the slider 4, and the clamping kit and the grinding head 2 are driven by the slider 4 to move up and down, and the clamping kit is used to realize the rotation of the grinding head 2; a notch is opened on one side of the base 1. During operation, the part to be repaired of the flange sealing surface is at the notch, and the grinding wheel of the grinding head 2 is horizontally fitted with the part to be repaired.

[0027] Specifically, if Figure 1 As shown, the screw rod 5 and the positioning rod 8 are installed vertically and in parallel, the slider 4 has two vertical through holes, and the screw rod 5 and the positioning rod 8 pass through the two vertical through holes respectively.

[0028] Preferably, the locking structure comprises two positioning nuts 7, which are connected to the lead screw 5 in an upper and lower spaced manner, and the sliding block 4 is provided with a notch on one side, one of the positioning nuts 7 is located in the notch, and the other positioning nut 7 is located on the upper surface of the sliding block 4, so that the sliding block 4 is locked and fixed through the two positioning nuts 7.

[0029] Preferably, the notch is a U-shaped notch.

[0030] Preferably, the clamping assembly comprises a clamping sleeve 3, a clamping nut 10 and a tensioning lead screw 11, the clamping sleeve 3 is sleeved on one side of the tensioning lead screw 11, the other side of the tensioning lead screw 11 penetrates through the sliding block 4, and the end penetrating out of the sliding block 4 is connected with the clamping nut 10; the clamping sleeve 3 and the tensioning lead screw 11 are provided with a communicating through hole, and the air pipe 6 penetrates through and is connected in the through hole. By loosening the clamping nut 10, rotating the clamping sleeve 3 and the tensioning lead screw 11 to drive the air pipe 6 and the grinding head 2 to rotate, the inclination degree of the grinding head 2 can be adjusted until the grinding head is horizontally attached to the repaired part, and then the clamping sleeve assembly is locked with the sliding block 4.

[0031] Preferably, the tensioning lead screw 11 is composed of a first cylinder and a second cylinder connected with each other, the first cylinder and the second cylinder are in a stepped shape, the outer diameter of the first cylinder is larger than that of the second cylinder, the clamping sleeve 3 is sleeved on the outside of the first cylinder, the clamping sleeve 3 and the first cylinder are provided with a communicating through hole, and the clamping sleeve 3 is in a cylindrical sleeve structure. The second cylinder is threadedly connected with the clamping nut 10 at the end penetrating out of the sliding block 4. Specifically, the sliding block 4 is also provided with a horizontal through hole, and the second cylinder penetrates through the horizontal through hole.

[0032] Preferably, a clamping pad 9 is arranged between the clamping sleeve 3 and the sliding block 4, and the clamping pad 9 is sleeved on the second cylinder.

[0033] Preferably, a clamping pad 9 is arranged between the clamping nut 10 and the sliding block 4, and the clamping pad 9 is sleeved on the second cylinder.

[0034] Preferably, the notch is a U-shaped notch.

[0035] Preferably, the bottom parts of the lead screw 5 and the positioning rod 8 are fixedly connected with the base 1 through bolts.

[0036] The use method of the utility model is as follows:

[0037] 1: First, the base 1 is attached to the flange sealing surface to be repaired;

[0038] 2: Adjust the position of the base 1 so that the part to be polished is located at the U-shaped notch part of the base 1;

[0039] 3: Adjust the position of the sliding block 4 by adjusting the lead screw 5, the positioning nut 7 and the clamping nut 10, so that the grinding head 2 is in a suitable working position and the grinding head 2 is horizontally attached to the repaired part.

[0040] 4: Connect the vent pipe 6 to the compressed air source (existing compressed air supply equipment);

[0041] 5: Open the air valve, and the compressed air drives the grinding wheel of the grinding head 2 to rotate for grinding (in this embodiment, the principle of compressed air driving the grinding wheel to rotate is the existing technology, such as a pneumatic angle grinder).

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A grinding machine for repairing flange sealing surface, characterized in that: include: A base (1), an adjustment assembly, a clamping kit, a grinding head (2) and a vent pipe (6), wherein the grinding head (2) is connected to one end of the vent pipe (6), the other end of the vent pipe (6) is connected to a compressed air supply device, and the vent pipe (6) is installed on the clamping kit; The adjustment assembly is mounted on the base (1), and comprises a slider (4), a locking structure, a screw rod (5) and a positioning rod (8); the screw rod (5) and the positioning rod (8) are mounted on the base (1) in parallel and spaced apart; the slider (4) is connected to the screw rod (5) and the positioning rod (8) and can slide up and down along the screw rod (5) and the positioning rod (8); the slider (4) is locked on the screw rod (5) by the locking structure; The clamping kit is connected to the slider (4), and the slider (4) drives the clamping kit and the grinding head (2) to move up and down, and the clamping kit is used to realize the rotation of the grinding head (2); A notch is formed through one side of the base (1). During operation, the portion of the flange sealing surface to be repaired is located at the notch, and the grinding wheel of the grinding head (2) is horizontally fitted to the portion to be repaired.

2. The flange sealing surface repairing grinding machine according to claim 1, characterized in that: The locking structure comprises two positioning nuts (7), which are connected to the screw rod (5) at intervals. A notch is provided on one side of the slider (4), one positioning nut (7) is located in the notch, and the other positioning nut (7) is located on the upper surface of the slider (4). The slider (4) is locked and fixed by the two positioning nuts (7).

3. The flange sealing surface repairing grinding machine according to claim 2, characterized in that: The notch is a U-shaped groove.

4. The flange sealing surface repairing grinding machine according to claim 1, characterized in that: The clamping kit comprises a clamping sleeve (3), a clamping nut (10) and a tensioning screw (11); the clamping sleeve (3) is sleeved on one side of the tensioning screw (11); the other side of the tensioning screw (11) passes through the slider (4), and one end passing through the slider (4) is connected to the clamping nut (10); a connecting through hole is opened on the clamping sleeve (3) and the tensioning screw (11), and the vent pipe (6) passes through and is connected in the through hole.

5. The flange sealing surface repairing grinding machine according to claim 4, characterized in that: The tensioning screw rod (11) is composed of a first cylinder and a second cylinder connected to each other, wherein the first cylinder and the second cylinder are stepped, the clamping sleeve (3) is sleeved on the outside of the first cylinder, and one end of the second cylinder passes through the slider (4) and is threadedly connected to the clamping nut (10).

6. The flange sealing surface repairing grinding machine according to claim 5, characterized in that: A clamping pad (9) is provided between the clamping sleeve (3) and the slider (4), and the clamping pad (9) is sleeved on the second cylinder.

7. The flange sealing surface repairing grinding machine according to claim 4, characterized in that: A clamping pad (9) is provided between the clamping nut (10) and the slider (4), and the clamping pad (9) is sleeved on the second cylinder.

8. The flange sealing surface repairing grinding machine according to claim 1, characterized in that: The notch is a U-shaped notch.

9. The flange sealing surface repairing grinding machine according to claim 1, characterized in that: The bottoms of the screw rod (5) and the positioning rod (8) are fixedly connected to the base (1) via bolts respectively.

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