Large-diameter elbow ball entering tool and method

Abstract

The invention relates to a large-diameter elbow ball entering tool and method.The tool comprises a supporting base and a hoisting piece, the supporting base comprises a supporting cavity for containing an elbow, and a limiting plate is arranged on the lower portion of the supporting cavity and used for limiting one end face of the elbow, so that the other end of the elbow faces upwards; the hoisting piece comprises a hoisting arm and a ball supporting part, the ball supporting part can be used for placing a steel ball, one end of the hoisting arm is connected with the ball supporting part, and a hoisting point is arranged on the hoisting arm, deviates from the gravity center of the hoisting arm and is close to one side of the ball supporting part. The large-diameter elbow ball feeding tool mainly comprises the supporting base and the suspension arm, is simple in structure and convenient to manufacture, is used in cooperation with existing hoisting equipment, can easily lift and place the steel ball into the elbow on the basis of the lever principle, saves manpower and improves operation safety.

Description

Technical Field

[0001] The invention relates to the technical field of elbow manufacturing, and in particular to a large-caliber elbow ball-forming tool and method. Background Art

[0002] Pipes are widely used in the petroleum, chemical and other industries. Elbows are often used to change the direction of the pipeline. During the forming process, they need to be heated at high temperature and pressurized by external forces. When the ovality of the elbow does not meet the standard during the elbow forming process, it needs to be processed with a steel ball. Place the steel ball at one end of the elbow and use a press to apply force to the steel ball so that the steel ball passes through the elbow. The diameter of the steel ball is slightly smaller than the inner diameter of the elbow. Therefore, the ovality of the elbow can be changed by rolling the steel ball in the elbow. For large-diameter elbows, the diameter of the steel ball is also large. Therefore, in the ball passing process, the steel ball is heavy and round, so it is very laborious to carry it manually, and there are certain safety hazards. Summary of the invention

[0003] The purpose of the present invention is to provide a large-caliber elbow ball-casting tool and method to solve the problem of inconvenience in manually carrying steel balls.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A large-caliber elbow ball tooling includes a support base and a hoisting piece. The support base includes a support cavity for placing the elbow. A limit plate is provided at the lower part of the support cavity for limiting one end face of the elbow so that the other end of the elbow faces upward.

[0006] The hoisting part comprises a lifting arm and a ball holding part. The ball holding part can be used to place a steel ball. One end of the lifting arm is connected to the ball holding part. A lifting point is arranged on the lifting arm. The lifting point is deviated from the center of gravity of the lifting arm and close to one side of the ball holding part.

[0007] Furthermore, the support base also includes a pair of baffles, which are connected to the lower part of the support cavity and form a ball passing channel, and the steel ball rolling out of the elbow can enter the ball passing channel.

[0008] Furthermore, the limiting plate has a U-shaped opening for the steel ball to pass through; the limiting plate forms a limiting portion at the edge of the U-shaped opening.

[0009] Furthermore, the ball holding part includes an arc-shaped plate with an opening facing upward and an end plate. One end of the suspension arm is fixed to the end plate. The end plate closes one side of the arc-shaped plate and forms an open part on the other side for the steel ball to enter and exit.

[0010] Furthermore, a hanging plate is provided at the hanging point, and the hanging plate has a hanging hole.

[0011] Furthermore, a lifting slot is provided at the lifting point.

[0012] The method for scoring a large-caliber elbow comprises the following steps: S1: placing the elbow on a support base, with one end of the elbow facing upward and the end surface of the other end being limited by a limit plate on the support base;

[0013] S2: Place the first steel ball on the ball-holding part of the boom;

[0014] S3: Connect the lifting point of the boom to the lifting equipment, and the first operator holds one end of the boom by hand and uses the lifting equipment to lift. During the lifting process, the first operator applies force to keep the boom balanced to prevent the steel ball from falling out, and the lifting equipment sends the boom to a position where the other end of the boom is close to the upper end of the elbow;

[0015] S4: The second operator assists in operating the steel ball to enter from the upper end of the elbow;

[0016] S5: Use a hydraulic press to press the steel ball into the elbow;

[0017] S6: Repeat the actions of steps S2 to S5 to press the second steel ball into the elbow and squeeze out the first steel ball.

[0018] Furthermore, in step S2, the first operator changes the force applied to one end of the boom so that the boom tilts toward the ball-holding portion to facilitate the steel ball to roll out of the ball-holding portion.

[0019] Further, in step S6, the steel ball rolling out of the elbow enters a ball passing channel formed by a pair of baffles of the supporting base.

[0020] Further, in step S2, the suspension arm is placed in the ball passage, and then the steel ball is placed in the ball holding portion of the suspension arm.

[0021] Beneficial effects of the present invention:

[0022] The large-caliber elbow goal-making tool of the present invention, with the help of a special structure of the lifting arm, can easily lift the steel ball and put it into the elbow based on the principle of leverage, saving manpower and improving operational safety. The large-caliber elbow goal-making tool of the present invention mainly includes a support base and a lifting arm, with a simple structure and easy to manufacture. In addition, it can be used with the existing lifting equipment in the workshop, with a low overall cost, but it has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the support base in the large-caliber elbow goal tooling of the present invention after the elbow is placed;

[0024] Figure 2 This is a schematic diagram of the steel ball before and after passing through the elbow;

[0025] Figure 3It is a stereogram of the embodiment 1 of the lifting member in the large-caliber elbow ball tooling of the present invention;

[0026] Figure 4 It is a stereogram of the embodiment 2 of the hanging member in the large-caliber elbow ball tooling of the present invention;

[0027] Figure 5 This is a schematic diagram of the first steel ball about to be dropped into the elbow;

[0028] Figure 6 It is a schematic diagram that the second steel ball and the first steel ball are both located in the elbow.

[0029] The names corresponding to the marks in the figure are:

[0030] 1. Support base; 11. Vertical plate; 12. Baffle; 13. Limiting plate; 131. Limiting part; 2. Elbow; 3. First steel ball; 4. Lifting piece; 41. Ball holding part; 411. Arc plate; 412. End plate; 42. Hanging arm; 43. Hanging plate; 44. Lifting slot; 5. Second steel ball. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0032] Example:

[0033] like Figure 1-Figure 6 As shown, a large-caliber elbow ball-punching tool comprises a support base 1 and a hanging piece 4. The support base 1 is welded from steel plates and is used to support the elbow 2. The hanging piece 4 is used to assist in placing the steel ball into one end of the elbow 2, reducing the labor intensity of the workers and improving the safety of operation.

[0034] like Figure 1 As shown, the support base 1 includes a support cavity for placing the elbow 2, and a limit plate 13 is provided at the lower part of the support cavity for limiting one end face of the elbow 2 so that the other end of the elbow 2 faces upward. The support cavity includes vertical plates 11 symmetrically arranged front and back, and a plurality of reinforcing rib plates are provided on the outer side of the vertical plates 11. A support plate supporting the bottom side of the elbow 2 is provided on the inner side of the two vertical plates 11, and a plurality of support plates are provided with different heights, and each support plate is spaced in the left and right direction, and an arc-shaped notch is provided on the top of the support plate to cooperate with the arc surface of the elbow 2. After the elbow 2 is placed, it is convenient for the subsequent ball passing operation.

[0035] like Figure 1 As shown, the limiting plate 13 has a U-shaped opening for the steel ball to pass through; the limiting plate 13 forms a limiting portion 131 at the edge of the U-shaped opening, which cooperates with the wall thickness portion of the end of the elbow 2. While the limiting plate 13 plays a limiting role, it does not affect the steel ball from coming out of the end of the elbow 2.

[0036] The support base 1 also includes a pair of baffles 12, which are connected to the lower part of the support cavity and form a ball passage. The steel ball rolling out of the elbow 2 can enter the ball passage. Figure 1 Figure 2 The two positions of the first steel ball 3 shown in the figure can prevent the steel ball from rolling randomly on the workshop floor.

[0037] like Figure 3 As shown, the hanging component 4 includes a hanging arm 42 and a ball holding portion 41 . The ball holding portion 41 can be used to place a steel ball, and one end of the hanging arm 42 is connected to the ball holding portion 41 .

[0038] The ball holding part 41 includes an arc-shaped plate 411 with an opening facing upward and an end plate 412. One end of the suspension arm 42 is fixed to the end plate 412. The end plate 412 closes one side of the arc-shaped plate 411 and forms an open part on the other side for the steel ball to enter and exit. The suspension arm 42 can be made of a steel pipe. The end plate 412 is used to connect with the suspension arm 42 on the one hand, and to limit the steel ball in one direction on the other hand, so that the steel ball can only enter and exit from one side of the open part. The ball holding part 41 can also be understood in a popular way as having a function similar to that of a dustpan.

[0039] The arm 42 is provided with a hoisting point, which is away from the center of gravity of the arm 42 and close to the side of the ball holding part 41. Since the weight of the ball holding part 41 is relatively large after the steel ball is placed on the side of the ball holding part 41, the hoisting point is close to the side of the ball holding part 41. Based on the principle of leverage, a small force is applied to the end of the arm 42 away from the ball holding part 41 to keep the arm 42 balanced during the hoisting process, which saves workers effort.

[0040] A hanging plate 43 is provided at the hanging point. The hanging plate 43 has a hanging hole, which can be used in conjunction with a lifting device in a workshop, and a hook is hung on the hanging hole.

[0041] In other embodiments, Figure 4 As shown, a lifting notch 44 is provided at the lifting point; a hanging plate is provided at the lifting point, and an annular groove is formed on the outer periphery of the hanging plate for the lifting belt to be inserted, and then the lifting equipment is used for lifting.

[0042] The large-diameter elbow goal-making method using the above-mentioned large-diameter elbow goal-making tooling is as follows: Figure 1-Figure 6 As shown, the following steps are included.

[0043] S1: Place the elbow 2 on the support base 1 , with one end of the elbow 2 facing upward and the end surface of the other end being limited by the limiting plate 13 on the support base 1 .

[0044] S2: Place the first steel ball on the ball-holding portion 41 of the boom 42, recorded as the first steel ball 3. In this embodiment, two steel balls are used. For ease of distinction and understanding, they are defined as the first steel ball 3 and the second steel ball 5. Two steel balls can meet the requirements. If in other embodiments, the length of the elbow 2 is slightly longer, it is also possible to consider using three steel balls to enter the elbow in turn. The steel ball is spherical, and its diameter is slightly smaller than the diameter of the elbow 2. While satisfying the requirement that the steel ball can enter the elbow 2, it can also play a role in changing the ellipticity of the elbow 2. The steel ball is solid and has a certain weight. After rolling contact with the inner wall of the elbow 2, the steel ball can apply local force to the inner wall of the elbow 2, which can make the inner wall of the elbow 2 smoother.

[0045] The suspension arm 42 is first placed in the ball passage, and the first steel ball 3 is placed in the ball holding portion 41 of the suspension arm 42. The steel ball has a certain rolling ability, and the operator can easily place it in the ball holding portion 41 by hand.

[0046] In step S2, the first operator can also change the force applied to one end of the arm 42 to slightly tilt the arm 42 toward the ball holding portion 41, so that the steel ball can roll out of the ball holding portion 41, which saves the second operator more effort. Before the steel ball leaves the ball holding portion 41, the first operator cannot release the arm 42 to avoid the accident of the steel ball falling to the ground.

[0047] S3: Connect the hanging point of the boom 42 to the lifting equipment, the first operator holds one end of the boom 42 by hand, and uses the lifting equipment to lift. During the lifting process, the first operator applies force to keep the boom 42 balanced. The first operator can slightly press down the end of the boom 42, and the ball-holding part 41 where the steel ball is located tilts upward to prevent the steel ball from falling out. The lifting equipment lifts and sends the boom 42 to a position where the other end of the boom 42 is close to the upper end of the elbow 2, preparing for the steel ball to enter the upper end of the elbow 2.

[0048] S4: The second operator assists in operating the steel ball to enter from the upper end of the elbow 2; the second operator can apply force to the first steel ball 3 to roll it toward the upper end of the elbow 2 and separate it from the ball holding part 41 of the boom 42.

[0049] S5: Use a hydraulic press to press the first steel ball 3 into the elbow 2. After the first steel ball 3 is placed in, due to the curvature problem in the elbow 2 and the small gap between the steel ball and the ball-holding portion 41, the first steel ball 3 will not automatically and easily roll out from the bottom of the elbow 2 after being placed, and external force is required. Use the pressure head of the hydraulic press to apply force downward to the first steel ball 3 to allow it to enter the elbow 2. When the support base 1 in step S1 is arranged, it is arranged in the area of ​​the hydraulic press to facilitate the use of the hydraulic press.

[0050] S6: Repeat the actions of steps S2 to S5 to press the second steel ball 5 into the elbow 2. The second steel ball 5 applies force to the first steel ball in the elbow 2 and squeezes out the first steel ball 3. Both steel balls can roll out of the elbow. Figure 6 The second steel ball 5 is shown just contacting the first steel ball 3 in the elbow 2 .

[0051] The steel ball rolling out of the elbow 2 enters the ball passage formed by a pair of baffles 12 of the support base 1, which limits the activity area of ​​the steel ball and prevents it from rolling to other areas at will to injure people or affect other production activities in the workshop.

[0052] The large-diameter elbow ball-pressing tool of the present invention can easily lift the steel ball and place it into the elbow based on the lever principle with the aid of a specially structured boom, thereby saving manpower and improving operational safety.

[0053] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A large-caliber elbow ball tooling, characterized by: It includes a support base and a hoisting part. The support base includes a support cavity for placing the elbow. A limiting plate is provided at the lower part of the support cavity for limiting one end face of the elbow so that the other end of the elbow faces upward. The hoisting part comprises a lifting arm and a ball holding part. The ball holding part can be used to place a steel ball. One end of the lifting arm is connected to the ball holding part. A lifting point is arranged on the lifting arm. The lifting point is deviated from the center of gravity of the lifting arm and close to one side of the ball holding part.

2. The large-caliber elbow ball-forming tooling according to claim 1 is characterized in that: The support base also includes a pair of baffles, which are connected to the lower part of the support cavity and form a ball passing channel. The steel ball rolling out of the elbow can enter the ball passing channel.

3. The large-caliber elbow ball-forming tooling according to claim 2 is characterized in that: The limiting plate has a U-shaped opening for the steel ball to pass through; the limiting plate forms a limiting portion at the edge of the U-shaped opening.

4. The large-caliber elbow ball-forming tooling according to claim 1 is characterized in that: The ball holding part includes an arc-shaped plate with an opening facing upward and an end plate. One end of the suspension arm is fixed to the end plate. The end plate closes one side of the arc-shaped plate and forms an open part on the other side for the steel ball to enter and exit.

5. The large-caliber elbow ball-forming tooling according to claim 1 is characterized in that: A hanging plate is provided at the hanging point, and the hanging plate has a hanging hole.

6. The large-caliber elbow ball-forming tooling according to claim 1 is characterized in that: A hoisting notch is provided at the hoisting point.

7. A method for scoring a large-diameter elbow goal using the large-diameter elbow goal scoring tool as claimed in any one of claims 1 to 6, characterized in that: The method comprises the following steps: S1: placing the elbow on a support base, with one end of the elbow facing upward and the end surface of the other end being limited by a limit plate on the support base; S2: Place the first steel ball on the ball-holding part of the boom; S3: Connect the lifting point of the boom to the lifting equipment, and the first operator holds one end of the boom by hand and uses the lifting equipment to lift. During the lifting process, the first operator applies force to keep the boom balanced to prevent the steel ball from falling out, and the lifting equipment sends the boom to a position where the other end of the boom is close to the upper end of the elbow; S4: The second operator assists in operating the steel ball to enter from the upper end of the elbow; S5: Use a hydraulic press to press the steel ball into the elbow; S6: Repeat the actions of steps S2 to S5 to press the second steel ball into the elbow and squeeze out the first steel ball.

8. The large-caliber elbow goal scoring method according to claim 7, characterized in that: In step S2, the first operator changes the force applied to one end of the boom so that the boom tilts toward the ball-holding portion to facilitate the steel ball to roll out of the ball-holding portion.

9. The large-caliber elbow goal scoring method according to claim 7, characterized in that: In step S6, the steel ball rolling out of the elbow enters a ball passage formed by a pair of baffles of the support base.

10. The large-caliber elbow goal scoring method according to claim 9, characterized in that: In step S2, the arm is placed in the ball passage, and then the steel ball is placed in the ball holding part of the arm.

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