Welding seam polishing device special for inner fillet welding seam

Abstract

The utility model relates to the technical field of weld joint polishing, in particular to a weld joint polishing device special for an inner fillet weld joint. Comprising a Y-shaped plate, a right-angle clamping mechanism installed at the bottom of the Y-shaped plate and a feeding grinding mechanism installed at the top of the Y-shaped plate, and the right-angle clamping mechanism comprises an inner supporting clamping piece and two outer clamping pieces symmetrically arranged on the two sides of the Y-shaped plate; the inner supporting clamping piece comprises a first mounting column rotationally mounted in the middle of the Y-shaped plate, an antiparallelogram supporting seat, a second mounting column rotationally mounted in the middle of the antiparallelogram supporting seat and an adjusting screw rod, and the adjusting screw rod penetrates through the first mounting column in a screwed mode and then is rotationally connected with the second mounting column; the feeding and grinding mechanism comprises a two-dimensional adjusting assembly installed on the Y-shaped plate and a grinding assembly installed on the two-dimensional adjusting assembly, the grinding assembly comprises a grinding machine body and a grinding rod installed on the grinding machine body, and the grinding rod is perpendicular to the Y-shaped plate. The welding seam polishing precision and polishing efficiency can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of weld grinding, in particular to a weld grinding device specially used for inner fillet welds. Background Art

[0002] As we all know, internal fillet welds are a common structural welding method, and their quality directly affects the strength and durability of the welded joint. Magnetic particle inspection of internal fillet welds can effectively detect cracks, defects, and other safety hazards within the weld, thereby improving the quality and service life of the weld. Before inspection, the weld surface should be cleaned to facilitate observation and defect detection, and polishing is generally required.

[0003] For example, Chinese utility model patent CN219541803U discloses a device for grinding internal fillet welds that can be adjusted both horizontally and vertically. A transverse frame is provided on the exterior of a retaining frame. The transverse frame is symmetrically provided with transverse and vertical slots. The transverse slots are penetrated by retaining nuts that are fixedly connected to the retaining frame, while the vertical slots are penetrated by retaining nuts that are fixedly connected to a milling cutter assembly. This device for grinding internal fillet welds allows for both horizontal and vertical adjustment of the milling cutter.

[0004] However, the milling cutter is in point contact with the weld, and relative movement is likely to occur between the retaining frame and the inner angle bracket to be ground. The milling cutter has poor stability during weld grinding operations, and the weld grinding accuracy and efficiency need to be further improved. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a weld grinding device specifically for inner fillet welds, which further improves weld grinding precision and grinding efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a weld grinding device specially used for internal fillet welds, comprising a Y-shaped plate, a right-angle clamping mechanism installed at the bottom of the Y-shaped plate, and a feed grinding mechanism installed at the top of the Y-shaped plate, the right-angle clamping mechanism comprising an inner support clamping member and two outer clamping members symmetrically arranged on both sides of the Y-shaped plate, the inner support clamping member comprising a first mounting column rotatably mounted in the middle of the Y-shaped plate, an equilateral trapezoidal support seat, a second mounting column rotatably mounted in the middle of the equilateral trapezoidal support seat, and an adjusting screw, the adjusting screw being threaded through the first mounting column and rotatably connected to the second mounting column.

[0007] The feed grinding mechanism includes a two-dimensional adjustment component installed on the Y-type plate and a grinding component installed on the two-dimensional adjustment component; the grinding component includes a grinder body and a grinding rod installed on the grinder body, and the grinding rod is arranged perpendicular to the Y-type plate; further, the grinding rod is located on the central axis of the Y-type plate; the two-dimensional adjustment component can adopt a two-dimensional mechanical slide.

[0008] Preferably, the two-dimensional adjustment assembly includes a slide located in the middle of the Y-shaped plate and slidingly arranged along the central axis of the Y-shaped plate, two first slide rods fixedly mounted on the slide and arranged perpendicular to the slide, and a lifting seat slidably mounted on the two first slide rods, and the grinder body is fixedly mounted on the lifting seat; further, the Y-shaped plate is provided with a slide rail arranged along the central axis direction of the Y-shaped plate, and the slide is slidably mounted on the slide rail.

[0009] Preferably, the Y-shaped plate is provided with two symmetrically arranged guide seats, two second sliding rods are fixedly installed on the sliding seat, the guide seat is provided with a cylindrical sliding groove that fits with the second sliding rod, the second sliding rod is slidably installed in the cylindrical sliding groove, the guide seat is provided with a limiting bolt, and the second sliding rod and the guide seat are locked by the limiting bolt.

[0010] Preferably, a spring is sleeved on the end of the second sliding rod, one end of the spring is fixedly connected to the end of the second sliding rod, and the other end of the spring abuts against the guide seat.

[0011] Preferably, a cross frame is fixedly installed on the top of the two first sliding rods, a tension spring is installed on the cross frame, and the bottom of the tension spring is connected to the top of the lifting seat.

[0012] Preferably, handles are symmetrically provided on both sides of the lifting seat.

[0013] Preferably, the outer clamping member includes a rotating seat rotatably mounted on the Y-shaped plate and an outer clamping plate fixedly mounted on the rotating seat.

[0014] Preferably, the outer clamping plate is provided with an anti-slip portion.

[0015] Furthermore, the anti-slip portion may be a rubber pad, a silicone pad or anti-slip grooves.

[0016] Compared with the prior art, the present invention provides a weld grinding device specifically for inner fillet welds, which has the following beneficial effects:

[0017] This weld grinding device is specially used for inner fillet welds. The Y-shaped plate is placed at the right angle of the right-angle welding frame to be processed. The two outer clamping pieces are located at the outer edges of the right-angle welding frame, and the inner support clamping piece is located at the inner corner of the right-angle welding piece. The adjusting screw is rotated to feed the equilateral trapezoidal support toward the inner corner of the right-angle welding frame until both the two isosceles sides of the equilateral trapezoidal support are in close contact with the inner corner of the right-angle welding frame. The right-angle welding frame is completely clamped between the inner support clamping piece and the two outer clamping pieces. At this time, the center of the Y-shaped plate is fixed. The axis coincides with the inner angle bisector of the right-angle welding frame, and the two-dimensional adjustment component is started. The two-dimensional adjustment component drives the grinder body to feed and move until the outer wall of the grinding rod contacts the welding slag at the weld. After starting the grinder body, the outer wall of the grinding rod contacts the weld line surface to grind the welding slag. The Y-type plate remains relatively stationary with the right-angle welding frame during the grinding operation. The two-dimensional adjustment component is used to achieve precise drive feeding of the grinder body and the grinding rod to improve the weld grinding accuracy and grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an isometric perspective three-dimensional structural diagram of the present invention.

[0019] Figure 2 It is a schematic diagram of the isometric three-dimensional structure of the present invention from a bottom perspective.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the utility model from another perspective.

[0021] Markings in the accompanying drawings: 1. Y-shaped plate; 2. First mounting column; 3. Equilateral trapezoidal support; 4. Second mounting column; 5. Adjustment screw; 6. Grinder body; 7. Grinding rod; 8. Center axis; 9. Slide seat; 10. First slide rod; 11. Lifting seat; 12. Guide seat; 13. Second slide rod; 14. Limit bolt; 15. Spring; 16. Cross frame; 17. Tension spring; 18. Handle; 19. Rotating seat; 20. Outer splint; 21. Anti-slip part. DETAILED DESCRIPTION

[0022] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 should fall within the scope of protection of the present invention.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0025] Example 1

[0026] Please refer to Figure 1-3 , a weld grinding device specially used for internal fillet welds, which includes a Y-shaped plate 1, a right-angle clamping mechanism installed at the bottom of the Y-shaped plate 1, and a feed grinding mechanism installed at the top of the Y-shaped plate 1, the right-angle clamping mechanism includes an inner support clamping member and two outer clamping members symmetrically arranged on both sides of the Y-shaped plate 1, the inner support clamping member includes a first mounting column 2 rotatably installed in the middle of the Y-shaped plate 1, an equilateral trapezoidal support seat 3, a second mounting column 4 rotatably installed in the middle of the equilateral trapezoidal support seat 3 and an adjusting screw 5, the adjusting screw 5 is screwed through the first mounting column 2 and rotatably connected to the second mounting column 4; the feed grinding mechanism includes a two-dimensional adjustment component installed on the Y-shaped plate 1 and a grinding component installed on the two-dimensional adjustment component, the grinding component includes a grinder body 6 and a grinding rod 7 installed on the grinder body 6, and the grinding rod 7 is arranged perpendicular to the Y-shaped plate 1.

[0027] Furthermore, the grinding rod 7 is located on the central axis 8 of the Y-shaped plate 1; the two-dimensional adjustment component can adopt a two-dimensional mechanical slide.

[0028] The two-dimensional adjustment assembly includes a slide 9 located in the middle of the Y-shaped plate 1 and slidingly arranged along the central axis 8 of the Y-shaped plate 1, two first slide rods 10 fixedly mounted on the slide 9 and arranged perpendicular to the slide 9, and a lifting seat 11 slidably mounted on the two first slide rods 10. The grinder body 6 is fixedly mounted on the lifting seat 11; handles 18 are symmetrically arranged on both sides of the lifting seat 11.

[0029] The Y-shaped plate 1 is provided with a slide rail arranged along the central axis 8 of the Y-shaped plate 1, and a slide seat 9 is slidably mounted on the slide rail. The Y-shaped plate 1 is provided with two symmetrically arranged guide seats 12, and two second slide bars 13 are fixedly mounted on the slide seat 9. The guide seats 12 are provided with cylindrical slide grooves that fit with the second slide bars 13. The second slide bars 13 are slidably mounted in the cylindrical slide grooves. The guide seats 12 are provided with limit bolts 14, and the second slide bars 13 and the guide seats 12 are locked by the limit bolts 14; by pushing along the central axis 8 of the Y-shaped plate 1.

[0030] A spring 15 is sleeved on the end of the second slide bar 13. One end of the spring 15 is fixedly connected to the end of the second slide bar 13, and the other end of the spring 15 abuts against the guide seat 12. A cross frame 16 is fixedly mounted on the top of the two first slide bars 10. A tension spring 17 is mounted on the cross frame 16. The bottom of the tension spring 17 is connected to the top of the lifting seat 11.

[0031] The weld grinding device provided in this embodiment is specially used for internal fillet welds. By pushing the slide 9 along the central axis 8 of the Y-shaped plate 1, the grinding rod 7 can be fed horizontally toward the weld to be processed, and by pushing the lifting seat 11 downward, the grinding rod 7 can be fed vertically toward the weld to be processed. The feeding distance of the slide 9 along the second slide bar 13 can be limited according to the grinding thickness of the weld. The second slide bar 13 is locked to the guide seat 12 by the limiting bolt 14 to prevent the grinding rod 7 from excessively feeding in the horizontal direction. When the limiting bolt 14 is disengaged from the limit of the guide seat 12, the slide 9 is reset under the action of the spring 15. The operator can hold the handle 18 to adjust the lifting seat 11 in the vertical direction, and the tension spring 17 can realize the automatic reset of the lifting seat 11 after the force on the handle 18 is released, which can further ensure the grinding accuracy of the weld and improve the operation convenience and weld grinding efficiency.

[0032] Example 2

[0033] The weld grinding device specifically for inner fillet welds provided in Example 1 is further optimized. Specifically, Figure 2 As shown, the outer clamping member includes a rotating seat 19 rotatably mounted on the Y-shaped plate 1 and an outer clamping plate 20 fixedly mounted on the rotating seat 19 .

[0034] A rotating wheel is rotatably mounted on the isosceles side of the equilateral trapezoidal support 3. The outer clamping plate 20 is provided with an anti-slip portion 21; further, the anti-slip portion 21 can be made of a rubber pad, a silicone pad or anti-slip grooves.

[0035] The weld grinding device provided in this embodiment is specifically used for internal corner welds. The rotating seat 19 can drive the outer clamping plate 20 to rotate at multiple angles, so that the angle between the two outer clamping plates 20 changes, and the rotating wheel on the equilateral trapezoidal support seat 3 contacts the inner corner edge line of the welding frame. Under the action of the protective part, the outer clamping plate 20 is firmly in contact with the outer edge of the welding frame to meet the clamping requirements of the multi-angle welding frame, and the grinding processing of the internal corner welds of the multi-angle welding frame can be realized.

[0036] The usage process of the weld grinding device specially used for internal angle welds provided by the present invention is as follows: place the Y-shaped plate 1 at the corner of the welding frame to be processed, the two outer clamping parts are located at the outer edges of the welding frame, and the inner support clamping part is located at the inner corner of the weld, and the adjusting screw 5 is rotated to feed the equilateral trapezoidal support 3 toward the inner corner of the welding frame until the two isosceles sides of the equilateral trapezoidal support 3 are in close contact with the inner corner sides of the welding frame, and the welding frame is completely clamped between the inner support clamping part and the two outer clamping parts. At this time, the central axis 8 of the Y-shaped plate 1 coincides with the inner angle bisector of the right-angle welding frame. The operator holds the handle 18 and pushes the slide 9 to feed toward the weld until the outer wall of the grinding rod 7 contacts the welding slag at the weld, and the second slide rod 13 is locked by the limit bolt 14. After starting the grinder body 6, the lifting seat 11 is moved up and down, and the outer wall of the grinding rod 7 contacts the weld line surface, and the welding slag is ground.

[0037] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

Claims

1. A weld grinding device specially used for internal fillet welds, characterized in that: It comprises a Y-shaped plate (1), a right-angle clamping mechanism installed at the bottom of the Y-shaped plate (1), and a feed grinding mechanism installed at the top of the Y-shaped plate (1), wherein the right-angle clamping mechanism comprises an inner support clamping member and two outer clamping members symmetrically arranged on both sides of the Y-shaped plate (1); The inner support clamping member comprises a first mounting post (2) rotatably mounted in the middle of the Y-shaped plate (1), an equilateral trapezoidal support seat (3), a second mounting post (4) rotatably mounted in the middle of the equilateral trapezoidal support seat (3), and an adjusting screw (5), wherein the adjusting screw (5) is screwed through the first mounting post (2) and is rotatably connected to the second mounting post (4); The feeding and grinding mechanism comprises a two-dimensional adjustment component mounted on the Y-shaped plate (1) and a grinding component mounted on the two-dimensional adjustment component. The grinding component comprises a grinding machine body (6) and a grinding rod (7) mounted on the grinding machine body (6). The grinding rod (7) is arranged perpendicular to the Y-shaped plate (1).

2. The weld grinding device specifically for internal fillet welds according to claim 1, characterized in that: The two-dimensional adjustment assembly comprises a slide seat (9) located in the middle of the Y-shaped plate (1) and slidingly arranged along the central axis (8) of the Y-shaped plate (1), two first slide bars (10) fixedly mounted on the slide seat (9) and arranged perpendicularly to the slide seat (9), and a lifting seat (11) slidably mounted on the two first slide bars (10), and the grinder body (6) is fixedly mounted on the lifting seat (11).

3. The weld grinding device specifically for internal fillet welds according to claim 2, characterized in that: The Y-shaped plate (1) is provided with two symmetrically arranged guide seats (12), the slide seat (9) is fixedly mounted with two second slide rods (13), the guide seat (12) is provided with a cylindrical slide groove that fits with the second slide rod (13), the second slide rod (13) is slidably mounted in the cylindrical slide groove, the guide seat (12) is provided with a limiting bolt (14), and the second slide rod (13) and the guide seat (12) are locked by the limiting bolt (14).

4. The weld grinding device specifically for internal fillet welds according to claim 3, characterized in that: A spring (15) is sleeved on the end of the second slide bar (13), one end of the spring (15) is fixedly connected to the end of the second slide bar (13), and the other end of the spring (15) is in contact with the guide seat (12).

5. The weld grinding device specially used for inner fillet welds according to claim 2 or 4, characterized in that: A cross frame (16) is fixedly mounted on the top of the two first slide bars (10), a tension spring (17) is mounted on the cross frame (16), and the bottom of the tension spring (17) is connected to the top of the lifting seat (11).

6. The weld grinding device specifically for internal fillet welds according to claim 5, characterized in that: Handles (18) are symmetrically provided on both sides of the lifting seat (11).

7. The weld grinding device specifically for internal fillet welds according to claim 1, characterized in that: The outer clamping member comprises a rotating seat (19) rotatably mounted on the Y-shaped plate (1) and an outer clamping plate (20) fixedly mounted on the rotating seat (19).

8. The weld grinding device specifically for internal fillet welds according to claim 7, characterized in that: An anti-slip portion (21) is provided on the outer clamping plate (20).

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