Stainless steel welded pipe welding seam polishing device

By designing a stainless steel welded pipe welded seam grinding device including a flip cover, clamping mechanism, lifting mechanism and automatic cutting mechanism, the problem of welding slag and metal debris splash during weld grinding is solved, and a safer and more efficient welded pipe processing process is achieved.

CN222958196UActive Publication Date: 2025-06-10GUANGDONG JINYISHENG SPECIAL MATERIAL CO LTD
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Patent Information

Application Number
CN202323615505.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2023-12-28
Publication Date
2025-06-10
Estimated Expiration
2033-12-28

AI Technical Summary

Technical Problem

In the prior art, welding slag and metal debris are prone to splash when grinding the weld, resulting in working environment pollution and safety hazards.

Method used

A stainless steel welded pipe welded seam grinding device is designed, including a machine, a flip cover, a clamping mechanism, a lifting mechanism and an automatic discharge mechanism. The flip cover can prevent welding slag from splashing, the clamping mechanism fixes the welded pipe, the lifting mechanism adjusts the height according to the welded pipe size, and the automatic discharge mechanism automatically discharges the processed welded pipe.

Benefits of technology

Effectively prevent welding slag and metal debris from splashing, keeping the processing site clean, reducing the working strength of operators, and improving the safety and efficiency of welding pipe grinding.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stainless steel welded pipe weld joint polishing device which comprises a machine table, a turning cover, a second driving mechanism, a clamping mechanism and an automatic discharging mechanism, one side of the turning cover is connected with one side of the machine table through a hinge, and a perspective window is arranged on the side, away from the hinge, of the turning cover; a driving mechanism, a clamping mechanism and an automatic discharging mechanism are sequentially arranged in the direction, away from the hinge, of the top face of the machine table, and a lifting mechanism is arranged above the clamping mechanism. When the device is used for polishing the welded pipe, welding slag or metal chippings can be prevented from splashing, the cleanliness of the using environment of the device is guaranteed, and operators are protected from being hurt by the welding slag.
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Description

Technical Field

[0001] The utility model relates to the technical field of weld grinding equipment, in particular to a weld grinding device for stainless steel welded pipes. Background Technique

[0002] Stainless steel pipe fittings include welded pipes and seamless steel pipes. Welded pipes have lower costs, higher production efficiency, and a wider range of applications compared to seamless steel pipes. Most of these welded pipes are formed by the UOE process. The welded pipes formed by the UOE process will form a straight weld equivalent to the length of the steel pipe. To achieve seamless butt joint, it is necessary to grind the weld at the end of the steel pipe. The transition area between the edge of the weld and the base material is required to have a smooth transition. At present, the straight welds at the ends of welded pipes are mostly ground by workers operating a grinding belt machine, supplemented by manually operating an electric angle grinder for trimming. Under the existing technology, when grinding stainless steel welded pipes, the shed welding slag and metal chips splash randomly, which not only destroys the working environment but also easily poses safety hazards to the operators and the personnel in the working area. Content of the Utility Model

[0003] To solve the above technical problems, the utility model provides a weld grinding device for stainless steel welded pipes.

[0004] The technical solution of the utility model is as follows: A weld grinding device for stainless steel welded pipes includes a machine table, a flip cover, a second driving mechanism, a clamping mechanism, and an automatic feeding mechanism. One side of the flip cover is connected to one side of the machine table through a hinge, and a perspective window is provided on the side of the flip cover away from the hinge; on the top surface of the machine table, in the direction away from the hinge, there are successively arranged a second driving mechanism, a clamping mechanism, and an automatic feeding mechanism, and a lifting mechanism is provided above the clamping mechanism.

[0005] Further, a handle is provided on the surface of the flip cover close to the perspective window, and a pipeline hole is provided on the side close to the hinge.

[0006] Further, the clamping mechanism includes clamping plates, a first T-shaped track, and a first driving mechanism. The clamping plates are symmetrically distributed at both ends of the first T-shaped track. Conical bosses are provided on the opposite surfaces of the clamping plates, and the conical bosses are embedded in the inner holes of the welded pipes. One side of the clamping plate is threadedly connected to the first driving mechanism.

[0007] Further, the first driving mechanism includes a first motor and a bidirectional lead screw. One end of the bidirectional lead screw is fixedly connected to the output end of the first motor, and the other end of the bidirectional lead screw is rotatably connected to the machine table through a bearing seat.

[0008] Further, a protective shell is provided on the outer side of the bidirectional lead screw. A through groove for the clamping plate to pass through is provided on the surface of the protective shell close to the clamping plate, and a bellows is provided in the through groove.

[0009] Further, the lifting mechanism includes a cylinder, a bracket, a fixed seat, a second T-shaped track, and a second motor. A cylinder is provided at the top of the bracket. The telescopic shaft of the cylinder passes through the bracket and is fixedly connected to the fixed seat. The second motor is fixedly connected to the fixed seat. A groove for mating with the second T-shaped track is provided at the bottom of the bracket. The output shaft of the second motor is detachably connected to the grinding tool.

[0010] Further, protective covers are provided on both sides of the bracket. The side of the protective cover away from the cylinder isolates the second motor from the second driving mechanism, and the other side of the protective cover is open.

[0011] Further, a fastening bolt is provided on one side of the grinding tool. The fastening bolt passes through the grinding tool and is screwed into the output shaft of the second motor.

[0012] Further, the second driving mechanism includes a third motor, a gear, and a rack. The rack is parallel to the second T-shaped track and is fixedly connected to the machine table. The third motor is fixedly connected to the bottom of the bracket. A gear meshing with the rack is provided at the output end of the third motor.

[0013] Further, the automatic blanking mechanism includes a fixed frame, a guide strip, and a torsion spring. The fixed frame is fixedly connected to the machine table. One end of the guide strip is hinged to the top of the fixed frame, and the other end extends below the welded pipe. A torsion spring is provided between the guide strip and the machine table.

[0014] Compared with the prior art, the advantages of the present utility model are as follows: The welded pipe is fixed by the clamping mechanism, and the lifting mechanism changes the lifting height according to the size of the welded pipe; before starting the equipment, the flip cover is closed, and the operator can observe the processing situation of the welded pipe through the perspective window. The flip cover can prevent the welding slag from splashing randomly, keep the processing site clean, and protect the personal safety of the operator; after the processing is completed, the automatic blanking mechanism automatically discharges the processed welded pipe from the clamping mechanism, eliminating the need for manual blanking and reducing the working intensity of the operator. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the whole of the present utility model;

[0017] Figure 2 It is Figure 1 the enlarged view of part A in

[0018] Figure 3 It is Figure 1Enlarged view at position B in [the figure];

[0019] Figure 4 This is the left side view of the present utility model;

[0020] Figure 5 is Figure 4 Enlarged view at position C in [the figure].

[0021] Wherein: 1, machine table; 2, flip cover; 3, protective shell; 4, clamping mechanism; 5, automatic feeding mechanism; 6, lifting mechanism; 7, second driving mechanism; 11, first T-shaped track; 12, second T-shaped track; 13, rack; 21, pipeline hole; 22, perspective window; 23, handle; 31, paddle; 32, sliding key; 33, guide post; 41, clamping plate; 42, bellows; 43, first motor; 411, conical boss; 51, fixing bracket; 52, guide strip; 53, torsion spring; 61, fixing seat; 62, second motor; 63, air cylinder; 64, grinding tool; 641, fastening bolt; 71, third motor; 72, gear; 73, bracket; 731, protective cover. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts fall within the scope protected by the present utility model.

[0023] The following will describe the detailed implementation manners of the present utility model in conjunction with the drawings:

[0024] As Figures 1 to 5 shown, a stainless steel welded pipe weld grinding device includes a machine table 1, a flip cover 2, a second driving mechanism 7, a clamping mechanism 4 and an automatic feeding mechanism 5. One side of the flip cover 2 is connected to one side of the machine table 1 through a hinge. A perspective window 22 is provided on the side of the flip cover 2 away from the hinge. A handle 23 is provided on the side of the flip cover 2 close to the perspective window 22, and a pipeline hole 21 is provided on the side close to the hinge. By operating the handle 23, the opening and closing of the flip cover 2 can be controlled. When the device is processing the welded pipe, the flip cover 2 is closed to prevent the welding slag from splashing everywhere. The air pipeline or circuit pipeline inside the device passes through the pipeline hole 21 and is connected to the outside. On the top surface of the machine table 1, away from the hinge direction, there are successively arranged a second driving mechanism 7, a clamping mechanism 4 and an automatic feeding mechanism 5. A lifting mechanism 6 is provided above the clamping mechanism 4.

[0025] The clamping mechanism 4 includes clamping plates 41, first T-shaped rails 11 and a first driving mechanism. The clamping plates 41 are symmetrically distributed at both ends of the first T-shaped rails 11. Conical bosses 411 are provided on the opposite surfaces of the clamping plates 41. The conical bosses 411 are embedded in the inner holes at both ends of the welded pipe. One side of the clamping plate 41 is threadedly connected to the first driving mechanism. The first driving mechanism includes a first motor 43 and a bidirectional lead screw. One end of the bidirectional lead screw is fixedly connected to the output end of the first motor 43, and the other end of the bidirectional lead screw is rotatably connected to the machine table 1 through a bearing block. The first motor 43 drives the bidirectional lead screw to rotate, and the bidirectional lead screw drives the clamping plates 41 to clamp the welded pipe towards the middle along the first T-shaped rails 11. The conical bosses 411 fix the axial and circumferential directions of the welded pipe to prevent the welded pipe from shifting in position during processing. A protective shell 3 is provided outside the bidirectional lead screw. A through slot for the clamping plate 41 to pass through is provided on the side of the protective shell 3 close to the clamping plate 41, and a bellows 42 is provided in the through slot. The bidirectional lead screw is a precision transmission component, and the content of dust or particles in the use environment is likely to affect the transmission effect of the bidirectional lead screw. The protective shell 3 can reduce the welding slag from falling into the bidirectional lead screw and damaging the bidirectional lead screw. One side of the clamping plate 41 passes through the protective shell 3 and is threadedly connected to the bidirectional lead screw. The bellows 42 can prevent the welding slag from passing through the through slot into the protective shell 3 and does not affect the movement of the clamping plate 41 in the through slot.

[0026] The lifting mechanism 6 includes a cylinder 63, a bracket 73, a fixed seat 61, second T-shaped rails 12 and a second motor 62. A cylinder 63 is provided at the top of the bracket 73. The telescopic shaft of the cylinder 63 passes through the bracket 73 and is fixedly connected to the fixed seat 61. The second motor 62 is fixedly connected to the fixed seat 61. A groove for cooperating with the second T-shaped rails 12 is provided at the bottom of the bracket 73. The output shaft of the second motor 62 is detachably connected to the grinding tool 64. The cylinder 63 starts to move the fixed seat 61 up and down. The fixed seat 61 drives the second motor 62 to move. The second motor 62 starts the grinding tool 64 to rotate, and the cylinder 63 thereby changes the distance between the grinding tool 64 and the welded pipe. A fastening bolt 641 is provided on one side of the grinding tool 64. The fastening bolt 641 passes through the grinding tool 64 and is screwed into the output shaft of the second motor 62. The detachable grinding tool 64 is convenient for replacement. Protective covers 731 are provided on both sides of the bracket 73. The side of the protective cover 731 away from the cylinder 63 isolates the second motor 62 from the second driving mechanism 7, and the other side of the protective cover 731 is open. The protective cover 731 can isolate the welding slag on one side of the second motor 62 to prevent the welding slag from splashing into the components of the second driving mechanism 7 and causing damage.

[0027] The second driving mechanism 7 includes a third motor 71, a gear 72, and a rack 13. The rack 13 is parallel to the second T-shaped rail 12 and fixedly connected to the machine table 1. The third motor 71 is fixedly connected to the bottom of the bracket 73, and the output end of the third motor 71 is provided with a gear 72 meshing with the rack 13. When the third motor 71 is started, the gear 72 rotates, and a relative displacement occurs between the gear 72 and the rack 13. The bracket 73 drives the lifting mechanism 6 to move along the second T-shaped rail 12, thereby grinding different positions of the welded pipe.

[0028] The automatic blanking mechanism 5 includes a fixing frame 51, a guiding strip 52, and a torsion spring 53. The fixing frame 51 is fixedly connected to the machine table 1. One end of the guiding strip 52 is hinged to the top of the fixing frame 51, and the other end extends below the welded pipe. A torsion spring 53 is provided between the guiding strip 52 and the machine table 1. After the welded pipe is processed, the clamping plate 41 is loosened, and the welded pipe falls onto the guiding strip 52 and separates from the clamping mechanism 4 along the guiding strip 52. The torsion spring 53 can not only provide buffering when the welded pipe falls but also adapt to welded pipes of different sizes and change the angle with the machine table 1.

[0029] The working principle of the specific embodiment of the present utility model is as follows: Align the inner hole at one end of the welded pipe with the conical boss 411 on the clamping plate 41, start the first motor 43, and the bidirectional lead screw rotates, so that the clamping plates 41 on both sides clamp the two ends of the welded pipe, and the conical boss 411 fixes the circumferential and axial positions of the welded pipe. Adjust the cylinder 63 to change the height of the second motor 62, so that the grinding tool 64 approaches the weld of the welded pipe. Close the flip cover 2. Start the second motor 62, and the cylinder 63 drives the grinding tool 64 to contact and grind the weld. Start the third motor 71, so that the grinding tool 64 moves along the weld to grind different positions of the weld. The operator can observe the processing situation of the welded pipe through the window. After the welded pipe is processed, the clamping plate 41 is loosened, and the ground welded pipe falls and rolls along the guiding strip 52.

[0030] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "upper", "lower", "left", "right", "front", "rear" and similar expressions used in this article are only for the purpose of illustration.

[0031] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments of equivalent changes within the scope of the technical solution of the present invention by using the technical content disclosed above. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A device for grinding the weld seam of a stainless steel welded pipe, characterized in that: It includes a machine table (1), a flip cover (2), a second driving mechanism (7), a clamping mechanism (4) and an automatic feeding mechanism (5). One side of the flip cover (2) is connected to one side of the machine table (1) through a hinge. A perspective window (22) is provided on the side of the flip cover (2) away from the hinge; on the top surface of the machine table (1) in the direction away from the hinge, the second driving mechanism, the clamping mechanism (4) and the automatic feeding mechanism (5) are sequentially provided, and a lifting mechanism (6) is provided above the clamping mechanism (4).

2. The device for grinding the weld seam of a stainless steel welded pipe according to claim 1, characterized in that: A handle (23) is provided on the side of the flip cover (2) close to the perspective window (22), and a pipeline hole (21) is provided on the side close to the hinge.

3. The device for grinding the weld seam of a stainless steel welded pipe according to claim 1, characterized in that: The clamping mechanism (4) includes clamping plates (41), a first T-shaped track (11) and a first driving mechanism. The clamping plates (41) are symmetrically distributed at both ends of the first T-shaped track (11). Conical bosses (411) are provided on the opposite surfaces of the clamping plates (41). The conical bosses (411) are embedded in the inner hole of the welded pipe, and one side of the clamping plate (41) is threadedly connected to the first driving mechanism.

4. The device for grinding the weld seam of a stainless steel welded pipe according to claim 3, characterized in that: The first driving mechanism includes a first motor (43) and a bidirectional lead screw. One end of the bidirectional lead screw is fixedly connected to the output end of the first motor (43), and the other end of the bidirectional lead screw is rotatably connected to the machine table (1) through a bearing seat.

5. The device for grinding the weld seam of a stainless steel welded pipe according to claim 4, characterized in that: A protective shell (3) is provided outside the bidirectional lead screw. A through groove for the clamping plate (41) to pass through is provided on the side of the protective shell (3) close to the clamping plate (41), and a bellows cover (42) is provided in the through groove.

6. The device for grinding the weld seam of a stainless steel welded pipe according to claim 1, characterized in that: The lifting mechanism (6) includes a cylinder (63), a bracket (73), a fixed seat (61), a second T-shaped track (12) and a second motor (62). The cylinder (63) is provided at the top of the bracket (73). The telescopic shaft of the cylinder (63) passes through the bracket (73) and is fixedly connected to the fixed seat (61). The second motor (62) is fixedly connected to the fixed seat (61). A groove for cooperating with the second T-shaped track (12) is provided at the bottom of the bracket (73). The output shaft of the second motor (62) is detachably connected to a grinding tool (64).

7. The device for grinding the weld seam of a stainless steel welded pipe according to claim 6, characterized in that: Protective covers (731) are provided on both sides of the bracket (73). The side of the protective cover (731) away from the cylinder (63) isolates the second motor (62) from the second driving mechanism (7), and the other side of the protective cover (731) is open.

8. The stainless steel welded pipe weld grinding device according to claim 6, characterized in that: One side of the grinding tool (64) is provided with a fastening bolt (641), and the fastening bolt (641) passes through the grinding tool (64) and is screwed into the output shaft of the second motor (62).

9. The stainless steel welded pipe weld grinding device according to claim 6, characterized in that: The second driving mechanism (7) includes a third motor (71), a gear (72) and a rack (13). The rack (13) is parallel to the second T-shaped track (12) and is fixedly connected to the machine table (1). The third motor (71) is fixedly connected to the bottom of the bracket (73), and the output end of the third motor (71) is provided with the gear (72) meshing with the rack (13).

10. The stainless steel welded pipe weld grinding device according to claim 1, characterized in that: The automatic blanking mechanism (5) includes a fixed frame (51), a guide strip (52) and a torsion spring (53). The fixed frame (51) is fixedly connected to the machine table (1). One end of the guide strip (52) is hinged to the top of the fixed frame (51), and the other end extends below the welded pipe. A torsion spring (53) is provided between the guide strip (52) and the machine table (1).