Simple tool structure for welding end cover and bearing

Abstract

The utility model discloses a simple and easy type frock structure for end cover and bearing welding, including frock body, guide post, spring and nut, the frock body is the vertical setting cylinder structure, and its section is T shape, and ensure that its upper end is big diameter end, the coaxial embedding of the upper surface of frock body has established round recess, and is equipped with the guide post in the coaxial heart in round recess, and the small diameter end of end cover is coaxially sleeved in round recess after guiding through the guide post, and its big diameter end face is with the upper surface of frock body screw joint fixed, bearing is coaxially sleeved in the central hole of end cover after guiding through the guide post, and is equipped with spring on the guide post relative to the coaxial heart of bearing upper, and still is equipped with nut on its upper end, and then along with the nut tightening, the upper limit of bearing is carried out to the spring, the utility model discloses end cover inner ring and bearing outer ring adopt clearance fit, thereby prevent bearing welding when, because temperature is too high and lead to bearing damage phenomenon to occur.

Description

Technical Field

[0001] This utility model relates to the field of tooling technology, specifically to a simple tooling structure for welding end caps and bearings. Background Technology

[0002] The following problems commonly exist in the existing welding process between end caps and bearings: 1) When welding the inner ring of the end cap to the outer ring of the bearing, the bearing is easily damaged due to excessive temperature; 2) To ensure the concentricity of the bearing and the end cap, multiple manual adjustments are required, which is time-consuming and labor-intensive; 3) When welding one side of the bearing, the other side is prone to warping, thus affecting the welding yield. Therefore, these problems urgently need to be solved. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a simple tooling structure for welding end caps and bearings. The inner ring of the end cap and the outer ring of the bearing adopt a clearance fit, thereby preventing the bearing from being damaged due to excessive temperature during welding.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a simple tooling structure for welding end caps and bearings, the innovation of which lies in: including a tooling body, a guide post, a spring, and a nut; the tooling body is a vertically arranged cylindrical structure with a T-shaped cross-section, ensuring that its upper end is the larger diameter end; a circular groove is coaxially and vertically embedded in the middle of the upper surface of the tooling body, and a guide post is coaxially and vertically arranged in the circular groove of the tooling body, the diameter of the guide post matching the inner diameter of the bearing, and its upper end extending vertically upward beyond the upper surface of the tooling body; the small-diameter end of the end cap is guided by the guide post and coaxially sleeved in the circular groove, and its large-diameter end face is screwed and fixed to the upper surface of the tooling body; the bearing is guided by the guide post and coaxially sleeved in the central hole of the end cap, and a spring is coaxially sleeved on the guide post relative to the upper part of the bearing, and a nut is screwed to its upper end, so that as the nut is tightened, the spring provides upper limit positioning for the bearing.

[0005] Preferably, the height of the large-diameter end of the tooling body is greater than the thickness of the end cap, and the outer diameter of its large-diameter end is greater than the outer diameter of the large-diameter end of the end cap.

[0006] Preferably, the diameter of the circular groove matches the outer diameter of the small-diameter end of the end cap, and the two are fitted with a clearance.

[0007] Preferably, the depth of the circular groove is greater than the height of the small diameter end of the end cap, thereby ensuring that when the end cap is screwed to the tooling body, the small diameter end face of the end cap does not contact the bottom surface of the circular groove of the tooling body.

[0008] Preferably, two threaded holes matching bolts are vertically embedded on the upper surface of the tooling body relative to the large-diameter end face of the end cap and relative to the outer side of the circular groove along its circumference. Each threaded hole matches the large-diameter end mounting hole of the end cap, and their opening positions correspond to the positions of the large-diameter end mounting holes of the end cap. Then, after the lower surface of the large-diameter end of the end cap is horizontally attached to the upper surface of the tooling body, the end cap and the tooling body are horizontally fixed together by the screw connection of the bolts, threaded holes and mounting holes.

[0009] Preferably, the angle between the two threaded holes is 155°.

[0010] Preferably, the diameter of the guide post is smaller than the diameter of the circular groove, and its lower end is screwed and fixed to the bottom surface of the circular groove of the tooling body, ensuring that the end cap and bearing do not interfere with the coaxial guiding action of the guide post; a circular groove is also coaxially and vertically embedded on the upper end surface of the guide post, the outer diameter of the circular groove is consistent with the diameter of the guide post, and its inner diameter is larger than the inner diameter of the nut, thereby forming a step at the upper end of the guide post through the circular groove, which limits the tightening of the nut.

[0011] Preferably, the horizontal plane at the lower end of the annular groove is located above the horizontal plane at the upper end of the bearing, and an external thread matching the nut is also provided on the guide post relative to the position of the annular groove, so that the nut is screwed and fixed to the guide shaft through the external thread.

[0012] Preferably, the length of the spring matches the distance between the bearing and the nut, and its outer diameter matches the inner ring of the bearing. After the nut is tightened, the bearing is placed at its upper limit by the tight contact between the spring and the inner ring of the bearing, thereby ensuring that the bearing is always in a horizontal state.

[0013] The beneficial effects of this utility model are: (1) The inner ring of the end cap and the outer ring of the bearing of this utility model adopt a clearance fit, thereby preventing the bearing from being damaged due to excessive temperature during the welding of the bearing; (2) By setting guide posts, the end cap and bearing can be coaxially sleeved on the guide posts in sequence, thereby ensuring the concentricity of the bearing and the end cap; (3) By using the spring nut and guide post together, this utility model can limit the bearing and ensure that the bearing is always in a horizontal state, thereby preventing the other side of the bearing from lifting up when welding one side, and improving the welding yield. (4) By setting a step at the upper end of the guide post, this utility model facilitates the lower limit of the tightening of the nut, thereby preventing damage to the bearing due to excessive spring compression; (5) The guide column of this utility model adopts a detachable design, which makes it easy to replace the guide column directly in the later stage, thereby avoiding the overall replacement of the tooling and saving costs; (6) The end cap is horizontally installed on the tooling body through the threaded hole, thereby ensuring the stability of the end cap when welding the bearing. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a simple tooling structure for welding an end cap and a bearing according to the present invention.

[0016] Figure 2 for Figure 1 Top view.

[0017] Figure 3 for Figure 2 AA view.

[0018] Figure 4 This is a schematic diagram showing the usage state of a simple tooling structure for welding an end cap and a bearing according to this utility model.

[0019] Among them, 1-tool body; 2-circular groove; 3-guide post; 4-threaded hole; 5-end cover; 6-bearing; 7-spring; 8-nut; 9-bolt. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0021] This utility model discloses a simple tooling structure for welding end caps and bearings, comprising a tooling body 1, a guide post 3, a spring 7, and a nut 8; the specific structure is as follows: Figures 1-4As shown, the tooling body 1 is a vertically arranged cylindrical structure with a T-shaped cross-section, ensuring that its upper end is the large-diameter end. A circular groove 2 is coaxially and vertically embedded in the middle of the upper surface of the tooling body 1, and a guide post 3 is coaxially and vertically arranged in the circular groove 2 of the tooling body 1. The diameter of the guide post 3 matches the inner diameter of the bearing 6, and its upper end extends vertically upward beyond the upper surface of the tooling body 1. The small-diameter end of the end cap 5 is guided by the guide post 3 and coaxially sleeved in the circular groove 2, and its large-diameter end face is screwed and fixed to the upper surface of the tooling body 1. The bearing 6 is guided by the guide post 3 and coaxially sleeved in the center hole of the end cap 5. A spring 7 is coaxially sleeved on the guide post 3 above the bearing 6, and a nut 8 is screwed on its upper end. As the nut 8 is tightened, the spring 7 provides upper limit control for the bearing 6.

[0022] like Figures 1-4 As shown, the height of the large-diameter end of the tooling body 1 is greater than the thickness of the end cover 5, and the outer diameter of its large-diameter end is greater than the outer diameter of the large-diameter end of the end cover 5.

[0023] like Figures 1-4 As shown, the diameter of the circular groove 2 matches the outer diameter of the small diameter end of the end cap 5, and the two are fitted with a clearance. The opening depth of the circular groove 2 is greater than the height of the small diameter end of the end cap 5, thereby ensuring that when the end cap 5 is screwed and fixed to the tooling body 1, the end face of the small diameter end of the end cap 5 does not contact the bottom surface of the circular groove 2 of the tooling body 1.

[0024] like Figures 1-4 As shown, two threaded holes 4, which are matched with bolts 9, are vertically embedded on the upper surface of the tooling body 1, relative to the large-diameter end face of the end cover 5 and relative to the outer side of the circular groove 2. Each threaded hole 4 matches the large-diameter end mounting hole of the end cover 5, and their opening positions correspond to the large-diameter end mounting hole positions of the end cover 5. After the lower surface of the large-diameter end of the end cover 5 is horizontally attached to the upper surface of the tooling body 1, the end cover 5 and the tooling body 1 are horizontally fixed together by the screw connection of bolts 9, threaded holes 4 and mounting holes. The angle between the two threaded holes 4 is 155°.

[0025] like Figures 1-4 As shown, the diameter of the guide post 3 is smaller than the diameter of the circular groove 2, and its lower end is screwed and fixed to the bottom surface of the circular groove 2 of the tooling body 1, ensuring that the end cover 5 and the bearing 6 do not interfere with the coaxial guiding action of the guide post 3; a circular groove is also coaxially and vertically embedded on the upper end surface of the guide post 3, the outer diameter of the circular groove is consistent with the diameter of the guide post 3, and its inner diameter is larger than the inner diameter of the nut 8, thereby forming a step at the upper end of the guide post 3 through the circular groove, which limits the tightening of the nut 8.

[0026] like Figures 1-4As shown, the horizontal plane at the lower end of the annular groove is located above the horizontal plane at the upper end of the bearing 6, and an external thread matching the nut 8 is also provided on the guide post 3 relative to the position of the annular groove, so that the nut 8 is screwed and fixed to the guide shaft through the external thread.

[0027] like Figures 1-4 As shown, the length of the spring 7 matches the distance between the bearing 6 and the nut 8, and its outer diameter matches the inner ring of the bearing 6. After the nut 8 is tightened, the bearing 6 is placed at its upper limit through the tight contact between the spring 7 and the inner ring of the bearing 6, thereby ensuring that the bearing 6 is always in a horizontal state.

[0028] The working principle of this utility model: First, the end cap 5 is guided by the guide post 3 and then horizontally and coaxially fitted into the circular groove 2 of the tooling body 1. By horizontally rotating the end cap 5, the mounting hole at the large diameter end of the end cap 5 is aligned with the threaded hole 4. Then, the end cap 5 and the tooling body 1 are screwed together by the bolt 9 and the threaded hole 4. Next, the bearing 6 is guided by the guide post 3 and then horizontally and coaxially fitted into the center hole of the end cap 5. A spring 7 is then coaxially fitted onto the guide post 3. Then, the nut 8 is screwed coaxially onto the guide post 3, and the tightening of the nut 8 is limited by a step. At this time, the cooperation of the spring 7 and the nut 8 ensures that the bearing 6 is always in a horizontal state. Then, the welding operation between the end cap 5 and the bearing 6 can be carried out.

[0029] The beneficial effects of this utility model are: (1) The inner ring of the end cap 5 and the outer ring of the bearing 6 of this utility model adopt a clearance fit, thereby preventing the bearing 6 from being damaged due to excessive temperature during welding; (2) By setting the guide post 3, the end cap 5 and the bearing 6 can be coaxially sleeved on the guide post 3 in sequence, thereby ensuring the concentricity of the bearing 6 and the end cap 5. (3) By using the spring nut 8 and the guide post 3 together, the bearing 6 can be positioned at the upper limit and the bearing 6 can always be in a horizontal state, thereby preventing the other side of the bearing 6 from lifting when one side is welded, and improving the welding yield. (4) By setting a step at the upper end of the guide post 3, this utility model facilitates the lower limit of tightening the nut 8, thereby preventing damage to the bearing 6 due to excessive compression of the spring 7; (5) The guide post 3 of this utility model adopts a detachable design, which makes it easy to replace the guide post 3 directly in the later stage, thereby avoiding the overall replacement of the tooling and saving costs; (6) The end cap 5 is horizontally installed on the tooling body 1 through the threaded hole 4, thereby ensuring the stability of the end cap 5 when welding with the bearing 6.

[0030] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, all modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully recorded in the technical requirements.

Claims

1. A simplified tooling structure for welding an end cap to a bearing, characterized in that: The fixture includes a tooling body, a guide post, a spring, and a nut. The tooling body is a vertically arranged cylindrical structure with a T-shaped cross-section, ensuring that its upper end is the larger diameter end. A circular groove is coaxially and vertically embedded in the middle of the upper surface of the tooling body, and a guide post is coaxially and vertically arranged in the circular groove of the tooling body. The diameter of the guide post matches the inner diameter of the bearing, and its upper end extends vertically upward beyond the upper surface of the tooling body. The small-diameter end of the end cap is guided by the guide post and coaxially sleeved in the circular groove, and its large-diameter end face is screwed and fixed to the upper surface of the tooling body. The bearing is guided by the guide post and coaxially sleeved in the center hole of the end cap. A spring is coaxially sleeved on the guide post above the bearing, and a nut is screwed to its upper end. As the nut is tightened, the spring provides upper limit control for the bearing.

2. The simplified tooling structure for welding end caps and bearings according to claim 1, characterized in that: The height of the large-diameter end of the tooling body is greater than the thickness of the end cap, and the outer diameter of its large-diameter end is greater than the outer diameter of the large-diameter end of the end cap.

3. The simplified tooling structure for welding end caps and bearings according to claim 2, characterized in that: The diameter of the circular groove matches the outer diameter of the small-diameter end of the end cap, and the two are fitted with a clearance.

4. The simplified tooling structure for welding end caps and bearings according to claim 3, characterized in that: The depth of the circular groove is greater than the height of the small diameter end of the end cap, thereby ensuring that when the end cap is screwed to the tooling body, the small diameter end face of the end cap does not contact the bottom surface of the circular groove of the tooling body.

5. A simplified tooling structure for welding an end cap to a bearing according to claim 1, characterized in that: Two threaded holes, matching bolts, are vertically embedded in the upper surface of the tooling body, relative to the large-diameter end face of the end cap and relative to the outer side of the circular groove, along its circumference. Each threaded hole matches the large-diameter end mounting hole of the end cap, and their opening positions correspond to the positions of the large-diameter end mounting holes of the end cap. After the lower surface of the large-diameter end of the end cap is horizontally attached to the upper surface of the tooling body, the end cap and the tooling body are horizontally fixed together by the screw connection of the bolts, threaded holes, and mounting holes.

6. A simplified tooling structure for welding an end cap to a bearing according to claim 5, characterized in that: The angle between the two threaded holes is 155°.

7. A simplified tooling structure for welding an end cap to a bearing according to claim 1, characterized in that: The diameter of the guide post is smaller than the diameter of the circular groove, and its lower end is screwed and fixed to the bottom surface of the circular groove of the tooling body, ensuring that the end cap and bearing do not interfere with the coaxial guiding action of the guide post; a circular groove is also coaxially and vertically embedded on the upper end surface of the guide post, the outer diameter of the circular groove is the same as the diameter of the guide post, and its inner diameter is larger than the inner diameter of the nut, thereby forming a step at the upper end of the guide post through the circular groove, which limits the tightening of the nut.

8. A simplified tooling structure for welding an end cap to a bearing according to claim 7, characterized in that: The lower end of the annular groove is located on a horizontal plane above the upper end of the bearing. Furthermore, an external thread matching the nut is provided on the guide post relative to the position of the annular groove, thereby allowing the nut to be screwed and fixed to the guide shaft through the external thread.

9. A simplified tooling structure for welding an end cap to a bearing according to claim 8, characterized in that: The length of the spring matches the distance between the bearing and the nut, and its outer diameter matches the inner ring of the bearing. After the nut is tightened, the bearing is placed at its upper limit by the tight contact between the spring and the inner ring of the bearing, thereby ensuring that the bearing is always in a horizontal state.

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