Welding tool die suitable for multistage centrifugal pump and multistage deep-well pump tensioning piece

Abstract

The utility model discloses a welding tool die suitable for a multistage centrifugal pump and a multistage deep-well pump tensioning piece, which relates to the field of pump processing, and comprises a rotating shaft, two ends of which are supported on a base in a relatively rotating manner through a bearing seat; the welding platform is connected with two ends of the rotating shaft and drives the rotating shaft to rotate around the bearing seat; the quick chuck is supported on the welding platform, a welding bolt positioning block used for positioning the welding bolt and a drawstring positioning block used for positioning the drawstring are further arranged on the welding platform, one end of the welding bolt is placed on the drawstring, and the welding bolt is tightly pressed relative to the drawstring through a pressing head of the quick chuck. The welding bolt and the drawstring are placed in the corresponding positioning grooves to achieve positioning, the positioning blocks are arranged on the two sides of the positioning grooves to assist in positioning, and the positioning precision is guaranteed; the welding bolt positioning groove forms a step relative to the drawstring positioning groove, so that the welding bolt is positioned above the drawstring; during welding, the welding platform can be rotated to adjust the welding position, and left and right welding can be achieved through one-time positioning.

Description

Technical Field

[0001] The utility model relates to the field of pump processing, in particular to a welding tooling die suitable for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps. Background Art

[0002] The tensioning parts of existing multi-stage centrifugal pumps and multi-stage deep well pumps are composed of three parts: tension belt, tension block and welding bolt. The tooling used in welding production uses a simple structure and is processed in the following four steps:

[0003] 1. Place the pull strap and welding bolt into the tooling pipe position, rotate the upper screw for about 5 turns, press it to death, and spot weld a small point on the back side; rotate the screw 5 turns again and take out the product.

[0004] 2. Use a placement jig to place the product at an angle suitable for workers to process, and then add wire for welding.

[0005] 3. Place the pull belt and tension block into the tooling pipe position, rotate the screw rod on it for about 5 turns, press it tightly, and spot weld a small point on the back side; rotate the screw rod 5 turns again and take out the product.

[0006] 4. Use a placement jig to place the product at an angle suitable for workers to process, and then weld without adding wire. (Same process as step 2).

[0007] However, the products welded by the above simple tooling are not beautiful and the dimensions are not stable enough, and the welding time is too long. In order to solve this problem, a new welding mold tooling structure needs to be developed. Utility Model Content

[0008] The purpose of the utility model is to overcome the shortcomings of the prior art and to provide a welding tooling die suitable for multi-stage centrifugal pumps and multi-stage deep well pump tensioning parts, so as to solve the problems of unstable welding quality and low production efficiency of multi-stage centrifugal pumps and multi-stage deep well pump tensioning parts.

[0009] The purpose of the utility model is achieved through the following technical solutions: This welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps includes:

[0010] The rotating shaft has two ends which are supported on the base for relative rotation via bearing seats;

[0011] A welding platform connected to both ends of the rotating shaft to drive the rotating shaft to rotate around the bearing seat; and

[0012] The quick chuck is supported on the welding platform. The welding platform is also provided with a welding bolt positioning block for positioning the welding bolt and a drawstring positioning block for positioning the drawstring. One end of the welding bolt is placed on the drawstring, and the welding bolt is pressed relative to the drawstring by the pressure head of the quick chuck.

[0013] As a further technical solution, the quick chuck is supported on the welding platform via a chuck support seat.

[0014] As a further technical solution, the threaded end of the welding bolt is against the chuck support seat, and a welding bolt positioning groove for placing the welding bolt and a draw strap positioning groove for placing the draw strap are sequentially provided on the welding platform.

[0015] As a further technical solution, a step is formed between the welding bolt positioning groove and the drawstring positioning groove, so that the welding end of the welding bolt away from the threaded end is located above the drawstring, and the pressure head is pressed tightly on the welding end.

[0016] As a further technical solution, an avoidance groove is provided on the welding platform at a position close to the threaded end.

[0017] As a further technical solution, the welding bolt positioning blocks are fixed on the welding platforms on both sides of the welding bolt positioning grooves, and the drawstring positioning blocks are fixed on the welding platforms on both sides of the drawstring positioning grooves.

[0018] As a further technical solution, a tightening bolt is provided on the chuck support seat for tightening the threaded end of the welding bolt.

[0019] As a further technical solution, axial holes are formed at both ends of the welding platform, and a clamping seat is installed outside the axial hole. After the rotating shaft passes through the bearing seat and the welding platform, it is locked with the clamping seat by screws.

[0020] As a further technical solution, stop blocks are provided on the bases on both sides of the welding platform for contacting and stopping the side walls of the welding platform, thereby limiting the rotation angle of the welding platform.

[0021] As a further technical solution, when the side wall of the welding platform contacts and stops with the stop block, the rotation angle of the welding platform is 45°.

[0022] The beneficial effects of the utility model are:

[0023] 1. The welding bolts and the pull belts can be placed in the corresponding positioning grooves to achieve positioning, and positioning blocks are set on both sides of the positioning grooves to assist in positioning, ensuring positioning accuracy and preventing shaking during welding;

[0024] 2. The welding bolt positioning groove forms a step relative to the drawstring positioning groove to ensure that the welding bolt is located above the drawstring after positioning, and is tightened by the pressure head;

[0025] 3. During welding, the welding platform can be rotated to adjust the welding position to ensure that both sides can be welded after one-time positioning and fixing;

[0026] 4. When the welding platform rotates, it is stopped and limited by the stop block to prevent excessive rotation and cause shaking during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0028] Figure 2 It is a schematic diagram of the main structure of the utility model.

[0029] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0030] Figure 4 for Figure 3 AA section view.

[0031] Figure 5 It is a structural schematic diagram of the welding platform in the utility model.

[0032] Figure 6 It is a schematic diagram of the structure of the quick chuck in the utility model when it is in an open state.

[0033] Figure 7 It is a structural schematic diagram of the welding platform of the utility model when it rotates to the left.

[0034] Figure 8 It is a structural schematic diagram of the welding platform in the utility model when it rotates to the right.

[0035] Explanation of the accompanying drawings: quick chuck 1, pressure head 1-1, welding bolt positioning block 2, welding bolt 3, threaded end 3-1, welding end 3-2, draw strap positioning block 4, draw strap 5, rotating shaft 6, stop block 7, base 8, welding platform 9, welding bolt positioning groove 9-1, draw strap positioning groove 9-2, avoidance groove 9-3, shaft hole 9-4, step 9-5, bearing seat 10, clamping seat 11, tightening bolt 12, chuck support seat 13. DETAILED DESCRIPTION

[0036] The utility model will be described in detail below with reference to the accompanying drawings:

[0037] Example: As shown in the attached Figures 1 to 8 As shown, this welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps includes a quick chuck 1, a pressure head 1-1, a welding bolt positioning block 2, a welding bolt 3, a threaded end 3-1, a welding end 3-2, a drawstring positioning block 4, a drawstring 5, a rotating shaft 6, a stop block 7, a base 8, a welding platform 9, a welding bolt positioning groove 9-1, a drawstring positioning groove 9-2, an avoidance groove 9-3, an axis hole 9-4, a step 9-5, a bearing seat 10, a clamping seat 11, a tightening bolt 12 and a chuck support seat 13.

[0038] Reference Figure 1 , 2 4. Two bearing seats 10 are arranged on the base 8 at intervals, and the two ends of the rotating shaft 6 are supported on the base 8 for relative rotation through the bearing seats 10. Figure 5 As shown, an axial hole 9-4 is formed at both ends of the welding platform 9, and a clamping seat 11 is fixedly installed on the outside of the axial hole 9-4 by bolts. After the rotating shaft 6 passes through the bearing seat 10 and the welding platform 9, it is locked with the clamping seat 11 by screws. The welding platform 9 is connected and fixed to both ends of the rotating shaft 6. During welding, the rotating shaft 6 can be driven to rotate around the bearing seat 10 by the welding platform 9.

[0039] The quick chuck 1 is supported on the welding platform 9 through the chuck support seat 13, and the welding bolt positioning groove 9-1 and the draw strap positioning groove 9-2 are sequentially provided on the upper surface of the welding platform 9. A welding bolt positioning block 2 is fixed on each side of the welding platform 9 on the welding bolt positioning groove 9-1, and a draw strap positioning block 4 is fixed on each side of the welding platform 9 on the draw strap positioning groove 9-2. During welding, the welding bolt 3 is inserted into the welding bolt positioning groove 9-1 for positioning, and the welding bolt positioning block 2 plays a role of left and right auxiliary positioning. The draw strap 5 is inserted into the draw strap positioning groove 9-2, and the draw strap positioning block 4 plays a role of left and right auxiliary positioning.

[0040] Reference Figure 3 , 4 The left end of the welding bolt 3 is a threaded end 3-1, and the right end is a welding end 3-2. The threaded end 3-1 of the welding bolt 3 is against the chuck support seat 13. Preferably, a tightening bolt 12 is passed through the chuck support seat 13 to tighten the threaded end 3-1 of the welding bolt 3.

[0041] Further, such as Figure 5 As shown, the height of the welding bolt positioning groove 9-1 is higher than that of the drawstring positioning groove 9-2, so that a step 9-5 is formed between the welding bolt positioning groove 9-1 and the drawstring positioning groove 9-2, so that after the welding bolt 3 is placed and positioned, the welding end 3-2 is located above the drawstring 5, and the welding bolt 3 (welding end 3-2) is pressed against the drawstring 5 by the pressure head 1-1 of the quick clamp 1. Preferably, two avoidance grooves 9-3 are provided on the welding platform 9 near the threaded end 3-1 to avoid the threaded end 3-1.

[0042] like Figure 1 , 3 As shown, two stop blocks 7 are respectively arranged on the base 8 on both sides of the welding platform 9, which can contact and stop the side wall of the welding platform 9, thereby limiting the rotation angle of the welding platform 9. Preferably, when the side wall of the welding platform 9 contacts and stops the stop block 7, the rotation angle of the welding platform 9 is 45°.

[0043] The working process of this utility model:

[0044] 1. If Figure 6 As shown, the pressure head 1-1 of the quick chuck 1 is loosened, and the draw tape 5 and the welding bolt 3 are placed in the corresponding positioning grooves. The positioning block plays an auxiliary positioning role, so that after the welding bolt 3 is placed and positioned, the welding end 3-2 is located above the draw tape 5, and then the pressure head 1-1 of the quick chuck 1 is used to press the welding bolt 3 (welding end 3-2) relative to the draw tape 5;

[0045] 2. If Figure 7 As shown, the welding platform 9 is rotated 45° to the left from the horizontal position. At this time, the side wall of the welding platform 9 just abuts against the two stop blocks 7 on the left side of the base 8. The operator can weld the right side of the pull belt 5 and the welding bolt 3 from directly above until one side is welded.

[0046] 3. If Figure 8 As shown, the welding platform 9 is rotated 45° to the right from the horizontal position. At this time, the side wall of the welding platform 9 just abuts against the two stop blocks 7 on the right side of the base 8. The operator can weld the left side of the pull belt 5 and the welding bolt 3 from directly above until one side is welded.

[0047] 4. After both sides of the drawstring 5 and the welding bolt 3 are welded, the quick chuck 1 can be opened to take out the product.

[0048] It is understandable that, for those skilled in the art, any equivalent replacement or change to the technical solution and the concept of the utility model should fall within the protection scope of the claims attached to the utility model.

Claims

1. A welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps, characterized in that: include: A rotating shaft (6), both ends of which are supported on a base (8) for relative rotation via a bearing seat (10); A welding platform (9) is connected to both ends of the rotating shaft (6) to drive the rotating shaft (6) to rotate around the bearing seat (10); and The quick clamp (1) is supported on a welding platform (9). A welding bolt positioning block (2) for positioning the welding bolt (3) and a drawstring positioning block (4) for positioning the drawstring (5) are also provided on the welding platform (9). One end of the welding bolt (3) is placed on the drawstring (5), and the welding bolt (3) is pressed against the drawstring (5) by the pressure head (1-1) of the quick clamp (1).

2. The welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps according to claim 1 is characterized in that: The quick clamp (1) is supported on the welding platform (9) via a clamp support seat (13).

3. The welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps according to claim 2 is characterized in that: The threaded end (3-1) of the welding bolt (3) abuts against the clamp support seat (13), and the welding platform (9) is provided with a welding bolt positioning groove (9-1) for accommodating the welding bolt (3) and a drawstring positioning groove (9-2) for accommodating the drawstring (5) in sequence.

4. The welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps according to claim 3 is characterized in that: A step (9-5) is formed between the welding bolt positioning groove (9-1) and the drawstring positioning groove (9-2), so that the welding end (3-2) of the welding bolt (3) away from the threaded end (3-1) is located above the drawstring (5), and the pressure head (1-1) is pressed tightly against the welding end (3-2).

5. The welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps according to claim 4 is characterized in that: An avoidance groove (9-3) is provided on the welding platform (9) at a position close to the threaded end (3-1).

6. The welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps according to claim 3 is characterized in that: The welding bolt positioning blocks (2) are fixed on the welding platform (9) on both sides of the welding bolt positioning groove (9-1), and the drawstring positioning blocks (4) are fixed on the welding platform (9) on both sides of the drawstring positioning groove (9-2).

7. The welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps according to claim 3 is characterized in that: A tightening bolt (12) is provided on the clamp support seat (13) for tightening the threaded end (3-1) of the welding bolt (3).

8. The welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps according to claim 1 is characterized in that: Axial holes (9-4) are formed at both ends of the welding platform (9), and a clamping seat (11) is installed outside the axial hole (9-4). After the rotating shaft (6) passes through the bearing seat (10) and the welding platform (9), it is locked with the clamping seat (11) by means of screws.

9. The welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps according to claim 1 is characterized in that: Stop blocks (7) are arranged on the bases (8) on both sides of the welding platform (9) and are used to contact and stop the side walls of the welding platform (9), thereby limiting the rotation angle of the welding platform (9).

10. The welding tooling die for tensioning parts of multi-stage centrifugal pumps and multi-stage deep well pumps according to claim 9 is characterized in that: When the side wall of the welding platform (9) contacts and stops the stop block (7), the rotation angle of the welding platform (9) is 45°.

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