Bed leg machining method

Abstract

The invention relates to a bed leg machining method. The bed leg structure comprises a circular tube body, a bottom plate, a top plate and a connecting stud, the round pipe body is of a vertically-arranged integrated structure and comprises a pipe body section, a top turnup section, a bottom turnup section, an upper limiting part and a lower limiting part. According to the bed leg structure, in the production process, the step of welding the top flanging section or the bottom flanging section to the pipe body section is omitted, manpower is saved, tedious welding operation is avoided, meanwhile, the strength of the round pipe body structure of the integrated structure is better, welding defects inevitably existing in the welding process are avoided, and the production efficiency is improved. In the actual use process, the risk that peripheral turnups are dislocated or even disengaged from the turnups of the round pipe body is avoided, and potential safety hazards are avoided.

Description

Technical Field

[0001] The invention relates to the field of bed supporting structures, and in particular to a method for processing bed legs. Background Art

[0002] The bed foot is the part that supports the center of gravity of the entire bed and is usually made of metal or wood. Existing patent CN 202022268829.3 provides a circular tube bed foot, including a bottom circular tube, a support member located on the bottom circular tube, and a threaded rod arranged on the support member, the top of the bottom circular tube is provided with a circular tube flange extending toward the center direction of the bottom circular tube, the support member includes an outer flange and a horizontal support portion formed by the center of the outer flange being depressed downward, the outer flange is welded to the circular tube flange, and the threaded rod is fixed to the horizontal support portion. The circular tube bed foot of the utility model is convenient for ensuring welding quality and improving welding efficiency.

[0003] However, the above patent still has the following defects: the outer flange 201 is welded to the flange 101 of the circular tube body, the welding is cumbersome and there are safety hazards, and welding defects are inevitable during the welding process, resulting in insufficient structural strength of the structure. There is a risk that the outer flange will be misplaced or even detached from the flange of the circular tube body during actual use, posing a safety hazard. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a method for processing bed legs.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a method for processing a bed foot, the bed foot comprises a circular tube body, a bottom plate, a top plate and a connecting stud; The circular tube body is a vertically arranged integrated structure, comprising a tube body section, a top flange section, a bottom flange section, an upper limit portion and a lower limit portion; The top end of the tube body section is provided with the top flange section, and the bottom end thereof is provided with the bottom flange section; The upper limit portion is provided on the inner wall of the tube section near the top flange section, and an upper accommodating area is formed between the upper limit portion, the inner wall of the tube section and the top flange section; The top plate is horizontally arranged in the upper accommodating area, the connecting stud is vertically fixed in the center of the top plate, and the threaded connection side of the connecting stud extends outward; The lower limit portion is provided on the inner wall of the tube section near the bottom flange section, so that a lower accommodating area is formed between the bottom flange section, the inner wall of the tube section and the lower limit portion; The bottom plate is horizontally arranged in the lower accommodating area, and a connecting through hole is arranged in the center of the bottom plate; The circular tube, top plate, bottom plate, through hole and connecting stud are all coaxially arranged, and the thickness of the top plate is S, the thickness of the bottom plate is D, The innovation lies in that the method comprises the following steps: S1. A circular steel pipe is placed vertically and the circular steel pipe is rotated with its axis as the rotation axis; S2, a horizontally arranged pressing wheel is brought close to the top of the circular steel pipe. When the pressing wheel contacts the circular steel pipe, it continues to move forward 1.5-2 mm to complete the forming of the lower limit part, thereby obtaining a first processed body; S3, placing the bottom plate into the circular steel pipe and placing it above the lower limit portion to obtain a second processed body; S4, assuming that the height of the horizontal line where the top end of the lower limit part is located is a, the flanging wheel of the flanging machine is vertically set and horizontally moved to above the horizontal line a, and the flanging wheel stops when the distance between the bottom end of the flanging wheel and the horizontal line a is A, and then the flanging wheel continues to move horizontally 6-8 mm to complete the forming of the bottom flanging section to obtain the third processed body; S5, invert the third processed body, and start rotating the circular steel pipe with its axis as the rotating shaft, and use the pressing wheel to form the upper limit portion according to step S2 to obtain the fourth processed body; S6. Place the top plate into the circular steel pipe and place it above the upper limit portion, and a connecting stud is fixed in the center of the top plate; S6. Assume that the height of the horizontal line at the top of the upper limit portion is b, set the flanging wheel close to the upper limit portion and above the horizontal line b, and stop when the distance between the bottom end of the flanging wheel and the horizontal line b is B, and then the flanging wheel continues to move forward horizontally for 6 to 8 mm to complete the forming of the top flanging section to obtain a finished bed foot.

[0006] Furthermore, a plurality of holes are provided on the bottom plate around the connecting through hole.

[0007] Furthermore, the upper limit portion and the lower limit portion are both annular structures.

[0008] Furthermore, the bottom plate is provided with a cylindrical extension section above the connecting through hole for threaded connection to a connecting stud of another bed foot.

[0009] Furthermore, in step S2, the rotation speed of the pressing wheel is 1150-1300 rpm and the forward speed is 0.002-0.008 m / s.

[0010] Furthermore, in step S4, the magnitude relationship between A and D is: D≤A≤2.5D; the rotation speed of the flanging wheel is 800-1000 rpm, and the forward speed is 0.005-0.015 m / s.

[0011] Furthermore, in step S6, the magnitude relationship between B and S is: B≤A≤2.5S; The rotation speed of the flanging wheel is 800-1000 rpm and the forward speed is 0.005-0.015 m / s.

[0012] The advantages of the present invention are: The foot structure of the present invention eliminates the step of welding the top folded section or the bottom flange section to the tube section during the production process, thus saving manpower and avoiding tedious welding operations. At the same time, the round tube body structure with an integrated structure has better structural strength, thus avoiding welding defects that are inevitable in the welding process. During actual use, there is no risk of the outer flange being misaligned or even detached from the flange of the round tube body, thus avoiding safety hazards.

[0013] At the same time, by controlling the relationship between A and D, and between B and S, it is ensured that the top flange section or the bottom flange section can press the top plate or the bottom plate tightly, preventing the top plate from rotating with the rotation of the connecting bolts or the bottom plate from rotating during use, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the bed foot structure of the present invention.

[0015] Figure 2 It is a cross-sectional view of the bed foot structure of the present invention.

[0016] Figure 3 The processing flow of the present invention Figure 1 .

[0017] Figure 4 The processing flow of the present invention Figure 2 . DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] like Figure 1-2 A bed foot processing method is shown, the bed foot comprises a circular tube body 1, a bottom plate 2, a top plate 3 and a connecting stud 4.

[0020] A plurality of holes 6 are formed on the bottom plate 2 around the connecting through hole 5 .

[0021] The circular tube body 1 is a vertically arranged one-piece structure, including a tube body section 11, a top flange section 12, a bottom flange section 13, an upper limit portion 14, and a lower limit portion 15. The one-piece structural design avoids the need to subsequently weld the top flange section or the bottom flange section 13 to the tube body section 11, saving manpower and avoiding cumbersome welding operations. At the same time, the circular tube body 1 with an one-piece structure has better structural strength, avoiding welding defects that are inevitable in the welding process, so that the structure will not have the risk of the outer flange being misplaced or even separated from the flange of the circular tube body 1 during actual use, thereby avoiding safety hazards.

[0022] The upper limit portion 14 and the lower limit portion 15 are both annular structures and are formed by extruding the tube section 11 inward after heating.

[0023] A top flange section 12 is provided at the top end of the tube body section 11 , and a bottom flange section 13 is provided at the bottom end thereof.

[0024] An upper limit portion 14 is provided on the inner wall of the tube body section 11 near the top flange section 12 , and an upper accommodating area is formed between the upper limit portion 14 , the inner wall of the tube body section 11 and the top flange section 12 .

[0025] A top plate 3 is horizontally arranged in the upper accommodation area, and a receiving slot is provided in the center of the top plate 3. A connecting stud 4 is welded in the receiving slot, and the threaded connection side of the connecting stud 4 extends outward.

[0026] A limiting ring 7 is also provided on the top of the connecting stud 4 located on the top plate 3 .

[0027] The top plate 3 is an integrated structure, including an upper ring segment, a lower ring segment and an inclined connecting segment connected between the upper ring segment and the lower ring segment, and the inner diameter of the upper ring segment is larger than the inner diameter of the top flange segment 12, and the outer diameter of the lower ring segment is smaller than the inner diameter of the upper ring segment.

[0028] A lower limiting portion 15 is provided on the inner wall of the tube section 11 near the bottom flange section 13 , and a lower accommodating area is formed between the bottom flange section 13 , the inner wall of the tube section 11 and the lower limiting portion 15 .

[0029] A bottom plate 2 is horizontally arranged in the lower accommodating area, and a connecting through hole 5 is arranged in the center of the bottom plate 2, through which a connecting stud 4 of another bed foot is connected.

[0030] The circular tube body 1, the top plate 3, the bottom plate 2, the through hole, and the connecting stud 4 are all coaxially arranged.

[0031] The bottom plate 2 is provided with a cylindrical extension section above the connecting through hole 5, which can be used to improve the connection stability when the connecting stud 4 of another bed foot is threadedly connected.

[0032] The above-mentioned processing method of bed foot comprises the following steps: Figure 3-4 As shown: S1. Set a circular steel pipe vertically and start rotating the circular steel pipe with its axis as the rotation axis.

[0033] S2. Place a horizontally arranged pressing wheel close to the top of the circular steel pipe. When the pressing wheel contacts the circular steel pipe, it continues to move forward 1.5 mm at a speed of 1200 rpm and a forward speed of 0.005 m / s to complete the forming of the lower limit portion and obtain the first processed body 010.

[0034] S3. Place the bottom plate 2 into the circular steel pipe and place it above the lower limit portion to obtain the second processed body 020.

[0035] S4. Assume that the height of the horizontal line at which the top end of the lower limit part is located is a, set the flanging wheel 8 of the flanging machine vertically and move it horizontally to above the horizontal line a, and stop when the distance between the bottom end of the flanging wheel 8 and the horizontal line a is A. At this time, A=2D, and then the flanging wheel 8 continues to move horizontally for 6~8mm at a rotation speed of 900 rpm and a forward speed of 0.01m / s to complete the forming of the bottom flanging section to obtain the third processed body 030.

[0036] S5, invert the third processed body, and start rotating the circular steel pipe with its axis as the rotating shaft, and use the pressing wheel to form the upper limit portion according to step S2 to obtain the fourth processed body 040.

[0037] S6. Place the top plate 3 into the circular steel pipe and place it above the upper limit portion, and a connecting stud is fixed in the center of the top plate.

[0038] S6, assuming that the top of the upper limit portion is at a horizontal height of b, the flanging wheel 8 is set near the upper limit portion and above the horizontal line b, and stops when the distance between the bottom of the flanging wheel 8 and the horizontal line b is B, at which time B=2S. Then the flanging wheel 8 continues to move forward horizontally for 6-8mm at a speed of 900 rpm and a forward speed of 0.01m / s, completing the molding of the top flanging section to obtain the fifth processed body 050, and removing the fifth connected body is the finished bed foot.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A method for processing a bed foot, the bed foot comprising a circular tube, a bottom plate, a top plate and a connecting stud; The circular tube body is a vertically arranged integrated structure, comprising a tube body section, a top flange section, a bottom flange section, an upper limit portion and a lower limit portion; The top end of the tube body section is provided with the top flange section, and the bottom end thereof is provided with the bottom flange section; The upper limit portion is provided on the inner wall of the tube section near the top flange section, and an upper accommodating area is formed between the upper limit portion, the inner wall of the tube section and the top flange section; The top plate is horizontally arranged in the upper accommodating area, the connecting stud is vertically fixed in the center of the top plate, and the threaded connection side of the connecting stud extends outward; The lower limit portion is provided on the inner wall of the tube section near the bottom flange section, so that a lower accommodating area is formed between the bottom flange section, the inner wall of the tube section and the lower limit portion; The bottom plate is horizontally arranged in the lower accommodating area, and a connecting through hole is arranged in the center of the bottom plate; The circular tube, top plate, bottom plate, through hole and connecting stud are all coaxially arranged, and the thickness of the top plate is S, the thickness of the bottom plate is D, Features: The following steps are involved: S1. A circular steel pipe is placed vertically and the circular steel pipe is rotated with its axis as the rotation axis; S2, a horizontally arranged pressing wheel is brought close to the top of the circular steel pipe. When the pressing wheel contacts the circular steel pipe, it continues to move forward 1.5-2 mm to complete the forming of the lower limit part, thereby obtaining a first processed body; S3, placing the bottom plate into the circular steel pipe and placing it above the lower limit portion to obtain a second processed body; S4, assuming that the height of the horizontal line where the top end of the lower limit part is located is a, the flanging wheel of the flanging machine is vertically set and horizontally moved to above the horizontal line a, and the flanging wheel stops when the distance between the bottom end of the flanging wheel and the horizontal line a is A, and then the flanging wheel continues to move horizontally 6-8 mm to complete the forming of the bottom flanging section to obtain the third processed body; S5, invert the third processed body, and start rotating the circular steel pipe with its axis as the rotating shaft, and use the pressing wheel to form the upper limit portion according to step S2 to obtain the fourth processed body; S6. Place the top plate into the circular steel pipe and place it above the upper limit portion, and a connecting stud is fixed in the center of the top plate; S6. Assume that the height of the horizontal line at the top of the upper limit portion is b, set the flanging wheel close to the upper limit portion and above the horizontal line b, and stop when the distance between the bottom end of the flanging wheel and the horizontal line b is B, and then the flanging wheel continues to move forward horizontally for 6 to 8 mm to complete the forming of the top flanging section to obtain a finished bed foot.

2. A bed foot processing method according to claim 1, characterized in that: In step S2, the rotation speed of the pressing wheel is 1150-1300 rpm and the forward speed is 0.002-0.008 m / s.

3. A bed foot processing method according to claim 1, characterized in that: In step S4, the magnitude relationship between A and D is: D≤A≤2.5D; The rotation speed of the flanging wheel is 800-1000 rpm and the forward speed is 0.005-0.015 m / s.

4. A bed foot processing method according to claim 1, characterized in that: In step S6, the magnitude relationship between B and S is: B≤A≤2.5S; The rotation speed of the flanging wheel is 800-1000 rpm and the forward speed is 0.005-0.015 m / s.

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