A device for correcting the 45-degree angle between the two end faces of an elbow welding pipe and its usage method

Abstract

The present invention discloses a device for correcting the 45-degree angle of both end faces of an elbow welded pipe and its usage method, belonging to the technical field of clamping and positioning. The present invention includes a base. A slide rail support is arranged on the upper surface of the base. First sliding linkages and second sliding linkages are respectively arranged on both sides of the upper surface of the base. The base, the slide rail support, the first sliding linkages and the second sliding linkages together form a support base. A T-shaped limit block is arranged on the upper surface of the slide rail support. A first T-shaped groove support base and a second T-shaped groove support base are installed at intervals on the upper part of the T-shaped limit block. First locking chains and second locking chains are respectively arranged on the surfaces of the first T-shaped groove support base and the second T-shaped groove support base. The design structure of the present invention is reasonable, the clamping and positioning is simple, it is firm and reliable in the clamping structure, the correction accuracy of the 45-degree angle of both end faces is high, the working labor intensity is greatly reduced, and the fixture structure is simple, which is convenient for processing and assembly, and can achieve the results of low cost and high benefit.

Description

Technical Field

[0001] The present invention relates to the technical field of clamping and positioning, and more specifically, to a device for correcting the 45-degree angle between the two end faces of an elbow welded pipe and its usage method. Background Art

[0002] The correction device is designed and manufactured to correct a certain dimension of a part and is used when it is impossible to ensure a certain important positioning dimension of the part; during the production process, it can effectively improve the mating dimensions of parts, improve the mating accuracy of parts, reduce the labor intensity during work, and effectively improve labor productivity.

[0003] Previously, manual measurement and correction were used, and the correction angle had to be repeatedly measured and adjusted, resulting in cumbersome operations, low welding stability, very low production efficiency, and a rather large labor intensity for workers. Summary of the Invention

[0004] 1. Technical Problems to be Solved by the Invention

[0005] In view of the defects and deficiencies existing in the prior art, the present invention provides a device for correcting the 45-degree angle between the two end faces of an elbow welded pipe and its usage method. The present invention has a reasonable design structure, simple clamping and positioning, is firm and reliable in the clamping structure, has a high correction accuracy for the 45-degree angle between the two end faces, greatly reduces the working labor intensity, and has a simple fixture structure, which is convenient for processing and assembly, and can achieve the results of low cost and high benefits.

[0006] 2. Technical Solutions

[0007] To achieve the above object, the technical solution provided by the present invention is as follows:

[0008] A device for correcting the 45-degree angle between the two end faces of an elbow welded pipe according to the present invention includes a base. A slide rail support is provided on the upper surface of the base, and sliding connecting rods are respectively provided on both sides of the upper surface of the base. The slide rail support is arranged between the first sliding connecting rod and the second sliding connecting rod. The base, the slide rail support, the first sliding connecting rod, and the second sliding connecting rod together form a support base;

[0009] First kidney-shaped grooves are provided on the rod bodies of the first sliding connecting rod and the second sliding connecting rod. The first sliding connecting rod, the second sliding connecting rod, and the slide rail support form a first kidney-shaped guide path moving pair;

[0010] A T-shaped limit block is provided on the upper surface of the slide rail support. A first T-shaped groove support seat and a second T-shaped groove support seat are installed at intervals on the upper part of the T-shaped limit block. The first T-shaped groove support seat, the second T-shaped groove support seat, and the slide rail support form a T-shaped guide path moving pair;

[0011] One end of the described slide rail support is provided with an angle positioning rod support. An angle positioning rod is fixed on the surface of the angle positioning rod support. A second waist-shaped groove is formed on the rod body of the angle positioning rod. A connecting rod is installed in the groove hole of the second waist-shaped groove. The angle positioning rod and the connecting rod form a second waist-shaped guideway moving pair;

[0012] On the upper surface of the described base, first radial positioning rod supports and second radial positioning rod supports are symmetrically arranged. A third waist-shaped groove is formed on the upper surface of the base. The first radial positioning rod supports and the second radial positioning rod supports are fixed to the third waist-shaped groove by bolts. The base and the first radial positioning rod supports and the second radial positioning rod supports form a third waist-shaped guideway moving pair;

[0013] The surfaces of the first radial positioning rod support and the second radial positioning rod support are respectively connected with a first radial positioning rod and a second radial positioning rod. Rectangular grooves are respectively formed on the surfaces of the first radial positioning rod support and the second radial positioning rod support. The first radial positioning rod and the second radial positioning rod are respectively fixed to the rectangular grooves on the surfaces of the first radial positioning rod support and the second radial positioning rod support by bolts. The first radial positioning rod support, the second radial positioning rod support, the first radial positioning rod, and the second radial positioning rod together form a rectangular guideway moving pair;

[0014] Round holes are formed at the upper ends of the first radial positioning rod and the second radial positioning rod. Both ends of the connecting rod respectively pass through the round holes and are assembled with the first radial positioning rod and the second radial positioning rod. The connecting rod and the first radial positioning rod and the second radial positioning rod form an axial guideway moving pair;

[0015] Cutting groove holes are formed on the rod bodies of the first radial positioning rod and the second radial positioning rod;

[0016] First locking chains and second locking chains are respectively arranged on the surfaces of the first T-shaped groove support seat and the second T-shaped groove support seat.

[0017] Further, the base is respectively fixed to the first sliding connecting rod and the second sliding connecting rod by bolts. The first sliding connecting rod and the second sliding connecting rod are respectively fixed to the slide rail support by bolts. The base and the slide rail support are connected by means of clearance fit through a first waist-shaped groove.

[0018] Further, T-shaped grooves are formed at the bottom surfaces of the first T-shaped groove support seat and the second T-shaped groove support seat. The T-shaped grooves match the shapes of the T-shaped limit blocks. The slide rail support and the first T-shaped groove support seat and the second T-shaped groove support seat are connected by means of clearance fit through the T-shaped limit blocks and the T-shaped grooves.

[0019] Further, the base and the first radial positioning rod support and the second radial positioning rod support are connected by means of clearance fit through a third waist-shaped groove.

[0020] Further, the first radial positioning rod support and the second radial positioning rod support are respectively connected to the first radial positioning rod and the second radial positioning rod in a clearance fit manner through rectangular grooves.

[0021] Further, the first radial positioning rod and the second radial positioning rod are connected to the connecting rod in a clearance fit manner through round holes, and the angle positioning rod is connected to the connecting rod in a clearance fit manner through a second waist-shaped groove.

[0022] Further, fourth waist-shaped grooves are respectively arranged on one side of the first T-shaped groove support seat and the second T-shaped groove support seat. One ends of the first locking chain and the second locking chain are respectively fixed to the fourth waist-shaped grooves of the first T-shaped groove support seat and the second T-shaped groove support seat through bolts, and a fourth waist-shaped guideway moving pair is formed.

[0023] A method for using a device for correcting a 45-degree angle between two end faces of an elbow welded pipe, the steps of which are as follows:

[0024] Step 1: Place the elbow welded pipe on the first T-shaped groove support seat and the second T-shaped groove support seat. When the first T-shaped groove support seat and the second T-shaped groove support seat are moved to a suitable distance, lock the nuts on the support seats.

[0025] Step 2: Adjust the elbow welded pipe so that its bent surface is centered, and use the first locking chain and the second locking chain in cooperation with bolts and nuts for fixation.

[0026] Step 3: Adjust the angle positioning rod and the slide rail support so that the end face of the angle positioning rod fits the bent surface of the elbow welded pipe, and lock the bolts and nuts on the first sliding link and the second sliding link.

[0027] Step 4: Adjust the first radial positioning rod support and the second radial positioning rod support so that the two side faces of the first radial positioning rod support and the second radial positioning rod support clamp the elbow welded pipe, and the bolts and nuts on the first radial positioning rod support and the second radial positioning rod support.

[0028] Step 5: Use a saw blade to cut the elbow welded pipe through the cutting slot holes on the rod bodies of the first radial positioning rod and the second radial positioning rod.

[0029] 3. Beneficial effects

[0030] Adopting the technical solution provided by the present invention, compared with the prior art, the following beneficial effects are achieved:

[0031] The design structure of the present invention is reasonable, the clamping and positioning are simple, the clamping structure is firm and reliable, the correction accuracy of the 45-degree angle between the two end faces is high, the working labor intensity is greatly reduced, and the fixture structure is simple, which is convenient for processing and assembly, and can achieve the results of low cost and high benefit. Description of the drawings

[0032] Figure 1 is the overall structure diagram of the present invention;

[0033] Figure 2 is the working state diagram of the present invention.

[0034] In the figure: 1. Base; 101. Third waist-shaped groove; 2. Slide rail support; 21. T-shaped limit block; 31. First radial positioning rod support; 32. Second radial positioning rod support; 41. First radial positioning rod; 42. Second radial positioning rod; 43. Round hole; 44. Cutting slot hole; 51. First T-shaped groove support seat; 52. Second T-shaped groove support seat; 53. T-shaped groove; 54. Fourth waist-shaped groove; 6. Connecting rod; 71. First locking chain; 72. Second locking chain; 8. Angle positioning rod; 81. Second waist-shaped groove; 91. First sliding connecting rod; 92. Second sliding connecting rod; 93. First waist-shaped groove; 10. Angle positioning rod support. Detailed implementation manners

[0035] The present invention will be further described below in conjunction with the drawings and embodiments:

[0036] Embodiment 1

[0037] From Figure 1-2 It can be seen that a device for correcting the 45-degree angle of both end faces of an elbow welding pipe in this embodiment includes a base 1. A slide rail support 2 is arranged on the upper surface of the base 1. On both sides of the upper surface of the base 1, a sliding connecting rod 91 and a sliding connecting rod 92 are respectively arranged. The slide rail support 2 is arranged between the first sliding connecting rod 91 and the second sliding connecting rod 92. The base 1, the slide rail support 2, the first sliding connecting rod 91, and the second sliding connecting rod 92 together form a support base;

[0038] First waist-shaped grooves 93 are opened on the rod bodies of the first sliding connecting rod 91 and the second sliding connecting rod 92. The first sliding connecting rod 91, the second sliding connecting rod 92, and the slide rail support 2 form a first waist-shaped guide path moving pair;

[0039] The base 1 is respectively fixed to the first sliding connecting rod 91 and the second sliding connecting rod 92 by bolts. The first sliding connecting rod 91 and the second sliding connecting rod 92 are respectively fixed to the slide rail support 2 by bolts. The base 1 and the slide rail support 2 are connected in a clearance fit manner through the first waist-shaped groove 93; The base 1 and the slide rail support 2 form a sliding connecting rod structure through the first sliding connecting rod 91 and the second sliding connecting rod 92. The slide rail support 2 can be adjusted to any angle to adapt to the angle of the bending surface of the elbow welding pipe;

[0040] The upper surface of the slide rail support 2 is provided with a T-shaped limit block 21. The upper part of the T-shaped limit block 21 is installed with a first T-shaped groove support seat 51 and a second T-shaped groove support seat 52 at intervals. The first T-shaped groove support seat 51, the second T-shaped groove support seat 52 and the slide rail support 2 form a T-shaped guideway moving pair;

[0041] The bottom surfaces of the first T-shaped groove support seat 51 and the second T-shaped groove support seat 52 are both provided with T-shaped grooves 53. The T-shaped grooves 53 match the shape of the T-shaped limit block 21. The slide rail support 2 is connected with the first T-shaped groove support seat 51 and the second T-shaped groove support seat 52 by means of clearance fit between the T-shaped limit block 21 and the T-shaped grooves 53; it is convenient for axial movement to adapt to elbow welding pipes of different lengths;

[0042] One end of the slide rail support 2 is provided with an angle positioning rod support 10. The surface of the angle positioning rod support 10 is fixed with an angle positioning rod 8. A second kidney-shaped groove 81 is opened on the rod body of the angle positioning rod 8. A connecting rod 6 is installed in the groove hole of the second kidney-shaped groove 81. The angle positioning rod 8 and the connecting rod 6 form a second kidney-shaped guideway moving pair; the angle positioning rod 8 and the connecting rod 6 form a sliding link structure. The angle positioning rod 8 can be adjusted to any angle and ensure that the first radial positioning rod 41 and the second radial positioning rod 42 are perpendicular to the base 1 to adapt to the angle of the bending surface of the elbow welding pipe;

[0043] The upper surface of the base 1 is also symmetrically provided with a first radial positioning rod support 31 and a second radial positioning rod support 32. A third kidney-shaped groove 101 is opened on the upper surface of the base 1. The first radial positioning rod support 31 and the second radial positioning rod support 32 are fixed to the third kidney-shaped groove 101 by bolts. The base 1 and the first radial positioning rod support 31, the second radial positioning rod support 32 form a third kidney-shaped guideway moving pair;

[0044] The base 1 is connected with the first radial positioning rod support 31 and the second radial positioning rod support 32 by means of clearance fit with the third kidney-shaped groove 101; it is convenient for the first radial positioning rod support 31 and the second radial positioning rod support 32 to move radially to adapt to elbow welding pipes of different diameters;

[0045] The surfaces of the first radial positioning rod support 31 and the second radial positioning rod support 32 are respectively connected with a first radial positioning rod 41 and a second radial positioning rod 42. Rectangular grooves 33 are respectively opened on the surfaces of the first radial positioning rod support 31 and the second radial positioning rod support 32. The first radial positioning rod 41 and the second radial positioning rod 42 are respectively fixed to the rectangular grooves 33 on the surfaces of the first radial positioning rod support 31 and the second radial positioning rod support 32 by bolts. The first radial positioning rod support 31, the second radial positioning rod support 32, the first radial positioning rod 41 and the second radial positioning rod 42 jointly form a rectangular guideway moving pair;

[0046] The first radial positioning rod support 31 and the second radial positioning rod support 32 are respectively connected to the first radial positioning rod 41 and the second radial positioning rod 42 in a clearance fit manner through the rectangular groove 33;

[0047] Round holes 43 are provided at the upper ends of the first radial positioning rod 41 and the second radial positioning rod 42. Both ends of the connecting rod 6 pass through the round holes 43 respectively and are assembled with the first radial positioning rod 41 and the second radial positioning rod 42. The connecting rod 6 and the first radial positioning rod 41 and the second radial positioning rod 42 form an axial guideway moving pair;

[0048] The first radial positioning rod 41 and the second radial positioning rod 42 are connected to the connecting rod 6 in a clearance fit manner through the round holes 43, and the angle positioning rod 8 is connected to the connecting rod 6 in a clearance fit manner through the second waist-shaped groove 81;

[0049] Cutting slots 44 are provided on the rod bodies of the first radial positioning rod 41 and the second radial positioning rod 42;

[0050] First locking chains 71 and second locking chains 72 are respectively arranged on the surfaces of the first T-slot support 51 and the second T-slot support 52.

[0051] Fourth waist-shaped grooves 54 are respectively arranged on one side of the first T-slot support 51 and the second T-slot support 52. One ends of the first locking chain 71 and the second locking chain 72 are respectively fixed to the fourth waist-shaped grooves 54 of the first T-slot support 51 and the second T-slot support 52 through bolts, and form a fourth waist-shaped guideway moving pair.

[0052] A method for using a device for correcting the 45-degree angle of the end faces of an elbow welded pipe, the steps of which are as follows:

[0053] Step 1: Place the elbow welded pipe on the first T-slot support 51 and the second T-slot support 52. When moving the first T-slot support 51 and the second T-slot support 52 to an appropriate distance, lock the nuts on the supports;

[0054] Step 2: Adjust the elbow welded pipe so that its bent surface is centered and placed, and use the first locking chain 71 and the second locking chain 72 to cooperate with bolts and nuts for fixation;

[0055] Step 3: Adjust the angle positioning rod 8 and the slide rail support 2 so that the end face of the angle positioning rod 8 fits the bent surface of the elbow welded pipe, and lock the bolts and nuts on the first sliding link 91 and the second sliding link 92;

[0056] Step 4: Adjust the first radial positioning rod support 31 and the second radial positioning rod support 32 to clamp the elbow welded pipe with the side surfaces of the first radial positioning rod support 31 and the second radial positioning rod support 32, and the bolts and nuts on the first radial positioning rod support 31 and the second radial positioning rod support 32;

[0057] Step 5: Use a saw blade to cut the elbow welded pipe through the cutting slots 44 on the rod bodies of the first radial positioning rod 41 and the second radial positioning rod 42.

[0058] In the design requirements of existing products, there is a 45-degree angle between the center line of the welding main body and the center line of the elbow welded pipe. Aiming at the problem that the angle generated by this mating angle cannot be guaranteed, the present invention is a special positioning and correction device designed specifically according to the structure of the elbow welded pipe. This device adopts the method of angle conversion and can be adjusted arbitrarily according to the diameter and bending angle size of the elbow welded pipe, and can achieve fast and accurate 45-degree angle correction.

[0059] The design structure of the present invention is reasonable, the clamping and positioning are simple, it is firm and reliable in the clamping structure, the correction accuracy of the 45-degree angle at both ends is high, the working labor intensity is greatly reduced, and the fixture structure is simple, which is convenient for processing and assembly, and can achieve the results of low cost and high benefit.

[0060] The above has schematically described the present invention and its implementation manners. This description is not restrictive, and only one of the implementation manners of the present invention is shown in the drawings. The actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments to this technical solution without creative work without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. An apparatus for correcting the 45-degree angle between the two end faces of an elbow welded pipe, comprising a base (1), characterized in that: The upper surface of the base (1) is provided with a slide rail support (2). On both sides of the upper surface of the base (1), a first sliding link (91) and a second sliding link (92) are respectively arranged. The slide rail support (2) is arranged between the first sliding link (91) and the second sliding link (92). The base (1), the slide rail support (2), the first sliding link (91), and the second sliding link (92) together form a support base; On the rod bodies of the first sliding link (91) and the second sliding link (92), first waist-shaped slots (93) are opened. The first sliding link (91), the second sliding link (92), and the slide rail support (2) form a first waist-shaped guide path moving pair; The upper surface of the slide rail support (2) is provided with a T-shaped limit block (21). On the upper part of the T-shaped limit block (21), a first T-shaped groove support seat (51) and a second T-shaped groove support seat (52) are installed at intervals. The first T-shaped groove support seat (51), the second T-shaped groove support seat (52), and the slide rail support (2) form a T-shaped guide path moving pair; One end of the slide rail support (2) is provided with an angle positioning rod support (10). On the surface of the angle positioning rod support (10), an angle positioning rod (8) is fixed. On the rod body of the angle positioning rod (8), a second waist-shaped slot (81) is opened. In the slot hole of the second waist-shaped slot (81), a connecting rod (6) is installed. The angle positioning rod (8) and the connecting rod (6) form a second waist-shaped guide path moving pair; On the upper surface of the base (1), a first radial positioning rod support (31) and a second radial positioning rod support (32) are symmetrically arranged. On the upper surface of the base (1), a third waist-shaped slot (101) is opened. The first radial positioning rod support (31) and the second radial positioning rod support (32) are fixed to the third waist-shaped slot (101) by bolts. The base (1) and the first radial positioning rod support (31), the second radial positioning rod support (32) form a third waist-shaped guide path moving pair; The surfaces of the first radial positioning rod support (31) and the second radial positioning rod support (32) are respectively connected with a first radial positioning rod (41) and a second radial positioning rod (42). On the surfaces of the first radial positioning rod support (31) and the second radial positioning rod support (32), rectangular slots (33) are respectively opened. The first radial positioning rod (41) and the second radial positioning rod (42) are respectively fixed to the rectangular slots (33) on the surfaces of the first radial positioning rod support (31) and the second radial positioning rod support (32) by bolts. The first radial positioning rod support (31), the second radial positioning rod support (32), the first radial positioning rod (41), and the second radial positioning rod (42) together form a rectangular guide path moving pair; On the upper ends of the first radial positioning rod (41) and the second radial positioning rod (42), round holes (43) are opened. The two ends of the connecting rod (6) respectively pass through the round holes (43) and are assembled with the first radial positioning rod (41) and the second radial positioning rod (42). The connecting rod (6) and the first radial positioning rod (41), the second radial positioning rod (42) form an axial guide path moving pair; Cutting slot holes (44) are provided on the rod bodies of the first radial positioning rod (41) and the second radial positioning rod (42). First locking chains (71) and second locking chains (72) are respectively arranged on the surfaces of the first T-slot support base (51) and the second T-slot support base (52).

2. The apparatus for correcting the 45-degree angle between the two end faces of an elbow welded pipe according to claim 1, characterized in that: The base (1) is respectively fixed to the first sliding connecting rod (91) and the second sliding connecting rod (92) by bolts. The first sliding connecting rod (91) and the second sliding connecting rod (92) are respectively fixed to the slide rail support (2) by bolts. The base (1) and the slide rail support (2) are connected by means of clearance fit through a first kidney-shaped slot (93).

3. The apparatus for correcting the 45-degree angle between the two end faces of an elbow welded pipe according to claim 2, characterized in that: T-slot (53) is provided at the bottom surface of each of the first T-slot support base (51) and the second T-slot support base (52). The T-slot (53) matches the shape of the T-shaped limit block (21). The slide rail support (2) and the first T-slot support base (51), the second T-slot support base (52) are connected by means of clearance fit through the T-shaped limit block (21) and the T-slot (53).

4. The apparatus for correcting the 45-degree angle between the two end faces of an elbow welded pipe according to claim 1, characterized in that: The base (1) and the first radial positioning rod support base (31), the second radial positioning rod support base (32) are connected by means of clearance fit through a third kidney-shaped slot (101).

5. The apparatus for correcting the 45-degree angle between the two end faces of an elbow welded pipe according to claim 1, characterized in that: The first radial positioning rod support base (31) and the second radial positioning rod support base (32) are respectively connected to the first radial positioning rod (41) and the second radial positioning rod (42) by means of clearance fit through a rectangular slot (33).

6. The apparatus for correcting the 45-degree angle between the two end faces of an elbow welded pipe according to claim 1, characterized in that: The first radial positioning rod (41) and the second radial positioning rod (42) are connected to the connecting rod (6) by means of clearance fit through a round hole (43). The angle positioning rod (8) and the connecting rod (6) are connected by means of clearance fit through a second kidney-shaped slot (81).

7. The apparatus for correcting the 45-degree angle between the two end faces of an elbow welded pipe according to claim 3, characterized in that: Fourth kidney-shaped slots (54) are respectively provided on one side of the first T-slot support base (51) and the second T-slot support base (52). One ends of the first locking chain (71) and the second locking chain (72) are respectively fixed to the fourth kidney-shaped slots (54) of the first T-slot support base (51) and the second T-slot support base (52) by bolts, and form a fourth kidney-shaped guide path moving pair.

8. The method of using the apparatus for correcting the 45-degree angle between the two end faces of an elbow welded pipe according to claim 7, characterized in that: The steps are as follows: Step 1: Place the elbow welded pipe on the first T-slot support base (51) and the second T-slot support base (52). When the first T-slot support base (51) and the second T-slot support base (52) are moved to a suitable distance, lock the nuts on the support bases. Step 2: Adjust the elbow welded pipe so that its bending surface is centered and placed, and use the first locking chain (71) and the second locking chain (72) to cooperate with bolts and nuts for fixing. Step 3: Adjust the angle positioning rod (8) and the slide rail support (2) so that the end surface of the angle positioning rod (8) fits the bending surface of the elbow welded pipe, and lock the bolts and nuts on the first sliding connecting rod (91) and the second sliding connecting rod (92). Step 4: Adjust the first radial positioning rod support (31) and the second radial positioning rod support (32) so that the two side surfaces of the first radial positioning rod support (31) and the second radial positioning rod support (32) clamp the elbow welded pipe, and the bolts and nuts on the first radial positioning rod support (31) and the second radial positioning rod support (32); Step 5: Use a saw blade to cut the elbow welded pipe through the cutting slots (44) on the rod bodies of the first radial positioning rod (41) and the second radial positioning rod (42).

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