Rotating shaft hinge welding table and working method

Abstract

The rotating shaft hinge welding table comprises a base, a vertical positioning table is arranged on one side of the top face of the base, a shaft groove is formed in the edge of the other side of the top face of the base, a first positioning block connected to the first outer side face of the base is arranged on one side of the shaft groove, and a pushing mechanism is arranged on the outer side of the second side face of the other side of the base. The pushing mechanism is used for being matched with the base to position the hinge body in the first horizontal direction, at least one side face, parallel to the first horizontal direction, of the base is provided with a second positioning block, the first horizontal direction is perpendicular to the second horizontal direction, the welding precision of the hinge body and the rotating shaft is guaranteed through the welding table, and the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of pivot hinge processing technology, specifically to a pivot hinge welding table and its working method. Background Technology

[0002] The statements herein provide only background information in relation to this invention and do not necessarily constitute prior art.

[0003] In the customized design of complete sets of power distribution equipment, due to the diverse structural forms of frames and door panels, conventional industrial hinges often fail to meet specific installation and functional requirements. Therefore, it is necessary to design hinges specifically for the frame structure. Among these, hinges containing a pivot structure are called pivot hinges, which consist of a pivot and a hinge body. The hinge body is a plate-like structure, and the pivot is a shaft-like structure. The pivot and hinge body need to be fixed together by welding. However, direct welding between the circumferential surface of the pivot and the plane of the hinge body presents positioning difficulties, making it hard to accurately control the welding position and resulting in compromised final product quality. Therefore, how to position and fix the pivot and hinge body during welding is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a rotating shaft hinge welding table and working method, which can accurately position the rotating shaft and hinge body when welding, ensuring the accuracy of the welding position and thus ensuring product quality.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: In a first aspect, embodiments of the present invention provide a hinge welding table, including a base. A vertical positioning platform for vertically positioning the hinge body is provided on one side of the top surface of the base. A shaft groove is provided on the other side edge of the top surface of the base. The shaft groove is used to place a rotating shaft for vertical positioning by means of a bottom horizontal groove surface. A first positioning block is provided on one side of the shaft groove and connected to a first outer side surface of the base. The rotating shaft positioning block can cooperate with the vertical groove surface of the shaft groove to position the rotating shaft along a first horizontal direction. The first positioning block is provided on the first outer side surface of the base. A pushing mechanism is provided on the outer side of the second side surface of the other side. The pushing mechanism is used to cooperate with the base to position the hinge body along the first horizontal direction. At least one side surface of the base parallel to the first horizontal direction is provided with a second positioning block. The second positioning block is used to position the rotating shaft and the hinge body along a second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction.

[0006] Optionally, the first positioning block is rotatably connected to the base, and a locking component is provided between the first positioning block and the base.

[0007] Optionally, the base has a threaded rod on its first outer side, the threaded rod passes through the first positioning block and the first positioning block is rotatably connected to the threaded rod, and the locking component is a locking nut located outside the first positioning block, the locking nut being threadedly connected to the threaded rod.

[0008] Optionally, a second positioning block is fixed to each of the two sides of the base parallel to the first horizontal direction. One end of the second positioning block extends to the vertical groove surface that passes over the shaft groove, and the other end extends to the second outer side surface of the base.

[0009] Optionally, the pushing mechanism includes a bracket, which is hinged to one end of a rocker arm and a pushing member. The pushing member is located near the base. The other end of the rocker arm is hinged to a first hinge position of the handle head, and the other end of the pushing member is hinged to a second hinge position of the handle head. The second hinge position is located outside the first hinge position. The pushing member has a protruding part for pushing the hinge body. When the handle moves, the protruding part can switch between extending out of the bracket and retracting into the bracket.

[0010] Optionally, the jacking mechanism is fixed on a support, which is located on one side of the base and integrally connected to the base.

[0011] Optionally, the base is provided with a rotating shaft at its bottom, and the base is rotatably connected to the rotating base of the welding station via the rotating shaft.

[0012] Optionally, the support or base is provided with a rotating operating component on its side, which allows the operator to rotate the base and support.

[0013] Optionally, the soldering station rotating base is connected to the top of at least three legs for supporting the soldering station rotating base.

[0014] Secondly, embodiments of the present invention provide a method for operating the rotating hinge welding table described in the first aspect, comprising the following steps: Place the hinge body on the vertical positioning platform, place the pivot inside the pivot groove, use the vertical positioning platform to position the hinge body vertically, and use the horizontal groove of the pivot groove to position the pivot vertically. Move the thick end of the hinge body and the pivot to the end point to contact the second positioning block, and position the hinge body and the pivot along the second horizontal direction; The first positioning block and the vertical groove of the shaft groove are used to position the thick end of the rotating shaft along the first horizontal direction, and the hinge body is positioned along the first horizontal direction by the jacking mechanism and the base. The hinge body and the pivot are welded together to fix them in place.

[0015] The beneficial effects of this invention are as follows: 1. The hinge welding table of the present invention can vertically position the hinge body and the hinge shaft through a first positioning block and a shaft groove; it can position the hinge body and the hinge shaft along a second horizontal direction through a second positioning block; it can position the hinge shaft along a first horizontal direction through the vertical groove surface of the shaft groove and the second positioning block; and it can position the hinge body along the first horizontal direction through a base and a pushing mechanism. This ensures that the hinge body and the hinge shaft are positioned in three directions in space, preventing hinge deformation, guaranteeing the accuracy of the relative position of the hinge shaft and the hinge body, thereby ensuring the precision of the welding position, ultimately guaranteeing product quality, reducing scrap rate and dimensional defect rate, and saving costs. 2. The rotating hinge welding table of the present invention has a base that is rotatably connected to the rotating base of the welding table via a rotating shaft, which is suitable for operation by welding personnel in any position, thus improving applicability. At the same time, by rotating the base, welding can be performed at multiple positions where the hinge body and the rotating shaft are in contact, and the welding position is not limited, thereby improving the strength and quality of the welding.

[0016] 3. The hinge welding table of the present invention has a second positioning block on both sides of the base, which can meet the welding requirements of left-opening and right-opening hinges, and the welding table has strong versatility. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the positioning mechanism structure in Embodiment 1 of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the positioning mechanism structure in Embodiment 1 of the present invention. Figure 2 ; Figure 4 This is a front view of the positioning mechanism in Embodiment 1 of the present invention; Figure 5 This is a side view of the positioning mechanism in Embodiment 1 of the present invention; Figure 6 This is a top view of the positioning mechanism in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the jacking mechanism structure in Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the assembly of the sleeve and flange in Embodiment 1 of the present invention; Figure 9 This is a schematic diagram of the assembly of the rotating base and support legs of the welding station in Embodiment 1 of the present invention; Figure 10 This is a schematic diagram of the push mechanism after the handle is pressed in Embodiment 2 of the present invention; Figure 11 This is a schematic diagram of the pushing mechanism after the handle is lifted in Embodiment 2 of the present invention; Among them, 1. support leg, 2. welding station rotating base, 3. positioning mechanism, 4. first plate, 5. rotating shaft, 6. second plate, 7. sleeve, 8. flange, 9. operating ring, 10. third plate; 3-1. Base, 3-2. Rotation shaft, 3-3. Vertical positioning platform, 3-4. Shaft groove, 3-5. First positioning block, 3-6. Wing nut, 3-7. Support, 3-8. Bracket, 3-9. Rocker arm, 3-10. Pushing component, 3-11. First hinge shaft, 3-12. Second hinge shaft, 3-13. Handle, 3-14. Third hinge shaft, 3-15. Fourth hinge shaft, 3-16. Protruding part, 3-17. Base plate. Detailed Implementation

[0019] In this embodiment, the pivot hinge includes a hinge body and a pivot 5. The pivot 5 is a stepped pivot, including a first shaft segment and a second shaft segment. The diameter of the first shaft segment is larger than the diameter of the second shaft segment. The first shaft segment is the thick end of the pivot 5, and the second shaft segment is the thin end of the pivot 5. The hinge body is a plate-like structure, including a first plate portion 4 and a second plate portion 6 and a third plate portion 10 respectively perpendicularly disposed on both sides of the first plate portion 4. The width of the second plate portion 6 is larger than the width of the third plate portion 10. The edge of the third plate portion 10 is used for welding to the first shaft segment of the pivot 5.

[0020] Example 1 This embodiment provides a hinge welding table, such as Figure 1 As shown, it includes a soldering station rotating base 2, support legs 1 and a positioning mechanism 3. The positioning mechanism includes a base 3-1, and a rotating shaft 3-2 is provided at the bottom of the base 3-1. The base 3-1 is rotatably connected to the soldering station rotating base 2 through the rotating shaft 3-2, and the base 3-1 can rotate 360°.

[0021] The soldering station rotating base 2 is connected to the top of at least three legs 1. The bottom of the legs 1 is used to place on the ground foundation and to support the soldering station rotating base 2.

[0022] like Figures 2-6 As shown, a vertical positioning platform 3-3 is provided on one side of the top surface of the base 3-1. The top surface of the vertical positioning platform 3-3 is used to fit against the bottom surface of the first plate part 4 of the hinge body, thereby realizing the vertical positioning of the hinge body.

[0023] A shaft groove 3-4 is provided on the other side edge of the top surface of the base 3-1. The shaft groove 3-4 includes a horizontal groove surface and a vertical groove surface, and the shaft groove is used to place the rotating shaft 5.

[0024] In this embodiment, the outer side of the base 3-1 located on the same side as the shaft groove 3-4 is defined as the first outer side, and the outer side opposite the first outer side is defined as the second outer side. The second outer side and the outer side of the vertical positioning platform 3-3 are flush to form an integral plane. The first and second outer sides are perpendicular to the first horizontal direction and parallel to the second horizontal direction. The other two sides of the base 3-1 are the third and fourth outer sides, which are parallel to the first horizontal direction and perpendicular to the second horizontal direction.

[0025] The first horizontal direction and the second horizontal direction are perpendicular to each other.

[0026] The first outer surface is provided with a first positioning block 3-5. The first positioning block 3-5 is a long strip block. The middle position of the first positioning block 3-5 is rotatably connected to the base 3-1. The first positioning block 3-5 can rotate. When one end of the first positioning block 3-5 rotates to be opposite to the vertical groove surface of the shaft groove 3-4, the first positioning block 3-5 can cooperate with the vertical groove surface to clamp the first shaft segment of the rotating shaft 5, thereby limiting the rotating shaft 5 along the first horizontal direction.

[0027] The first positioning block 3-5 is rotatably connected to the base 3-1, and a locking component is provided between the first positioning block 3-5 and the base 3-1 to lock and fix the first positioning block 3-5 and the base 3-1.

[0028] Specifically: A threaded rod is provided on the first outer side of the base 3-1. The threaded rod passes through the middle of the first positioning block 3-5. The first positioning block 3-5 is rotatably connected to the threaded rod. The locking component is a locking nut. The locking nut located outside the first positioning block is threadedly connected to the threaded rod. Preferably, the locking nut is a wing nut 3-6.

[0029] Rotating the locking nut will press the first positioning block 3-5 against the first outer surface of the base 3-1, thereby clamping the rotating shaft 5 between the first positioning block 3-5 and the vertical groove surface of the shaft groove 3-4, and fixing the rotating shaft 5 in position.

[0030] The third and / or fourth outer sides of the base 3-1 are fixed with a second positioning block 3-6 by screws. The second positioning block 3-6 is a long strip block. One end of the second positioning block 3-6 extends beyond the vertical groove surface of the shaft groove 3-4, so that the end of the first shaft section of the rotating shaft 5 can contact the second positioning block 3-6. The other end of the second positioning block 3-6 extends beyond the second outer side of the base 3-1, so that the second positioning block 3-6 can contact the edge of the second plate part 6 of the hinge body.

[0031] The second positioning block 3-6 can be used to position the rotating shaft 5 and the hinge body along the second horizontal direction.

[0032] In this embodiment, the third outer side and the fourth outer side are both fixed with the second positioning block 3-6. The first shaft segment of the rotating shaft 5 can contact the second positioning block 3-6 on the third outer side or the second positioning block 3-6 on the fourth outer side, which can meet the welding requirements of the left-opening and right-opening door rotating shaft hinges and improve the versatility of the welding station.

[0033] The base has an integral support 3-7 at the bottom of the second outer side of the base. The support 3-7 is integrally connected to the base 3-1. The base 3-1 and the support 3-7 form an L-shaped structure. A pushing mechanism is fixed on the upper surface of the support 3-7. The pushing mechanism can clamp the second plate 6 of the hinge body together with the second outer side of the base, thereby positioning the hinge body along the first horizontal direction.

[0034] like Figure 7 As shown, the jacking mechanism includes a bracket 3-8, which is fixed to the upper surface of the support 3-7 by bolts. A U-shaped groove is provided on the top surface of the bracket 3-8. A rocker arm 3-9 and a jacking component 3-10 are provided in the U-shaped groove. The jacking component 3-10 is located near the second outer side of the base 3-1. A first hinge shaft 3-11 is fixed in the U-shaped groove of the bracket 3-8. The bottom end of the rocker arm 3-9 is rotatably connected to the first hinge shaft 3-11 to achieve the hinge connection between the bottom end of the rocker arm 3-9 and the bracket 3-8.

[0035] A second hinge shaft 3-12 is also fixed inside the U-shaped groove. Compared with the first hinge shaft 3-11, the second hinge shaft 3-12 is set closer to the second outer side of the base 3-1. The bottom end of the pusher 3-10 is rotated to connect with the second hinge shaft 3-12 so that the bottom end of the pusher 3-10 is hinged to the bracket 3-8.

[0036] The pusher component 3-10 adopts a rod-shaped structure that is wide at one end and narrow at the other, and both ends of the rod are arc surfaces.

[0037] The jacking mechanism also includes a handle 3-13, with one end of the handle 3-13 near the base 3-1 serving as the head end and the other end serving as the tail end.

[0038] One end of the rocker arm 3-9 is rotatably connected to the first hinge shaft 3-11, and the other end is provided with a U-shaped groove. The third hinge shaft 3-14 is provided in the U-shaped groove, and the head end of the handle 3-13 is hinged to the third hinge shaft 3-14 at the first hinge position.

[0039] One end of the pusher 3-10 is rotatably connected to the second hinge shaft 3-12, and the other end is provided with a U-shaped groove. The fourth hinge shaft 3-15 is provided in the U-shaped groove. The head end of the handle 3-13 is hinged to the fourth hinge shaft 3-15 at the second hinge position. The second hinge position is closer to the base than the first hinge position.

[0040] The width of the end of the pusher 3-10 connected to the second hinge shaft is greater than the width of the other end, and the outer edge of the pusher 3-10 is provided with a protruding part 3-16. Preferably, the protruding part 3-16 is an arc-shaped protruding part. The pusher 3-10 rotates around the second hinge shaft 3-12, which can realize the switching between the state of the protruding part 3-16 extending out of the U-shaped groove of the bracket 3-8 and retracting into the U-shaped groove of the bracket 3-8.

[0041] When the operator presses the end of the handle 3-13, the pusher 3-10 can rotate around the second hinge axis 3-12, so that the protrusion 3-16 extends into the space between the bracket 3-8 and the base 3-1, and the protrusion 3-16 presses the second plate 6 of the hinge body against the second outer side of the base 3-1.

[0042] In this embodiment, there is a set frictional force between the handle 3-13 and the third hinge shaft 3-14 and the fourth hinge shaft 3-15, a set frictional force between the pusher 3-10 and the second hinge shaft 3-12, and a set frictional force between the rocker arm 3-9 and the first hinge shaft 3-11. Under normal conditions, the relative postures of the handle 3-13, the pusher 3-10, the rocker arm 3-9 and the bracket 3-8 can be kept fixed under the action of frictional force. Only when the external load acting on the handle 3-13 is greater than the set value can the handle 3-13, the pusher 3-10 and the rocker arm 3-9 be moved.

[0043] The bottom surface of the base 3-1 is fixed with a base plate 3-17 by two screws. The base plate 3-17 is connected to the top of the rotating shaft 3-2. In this embodiment, the rotating shaft is provided with an annular boss. The rotating shaft part on the upper side of the annular boss is an external thread section. The external thread section is threadedly fixed to the base plate 3-17. The rotating shaft part on the lower side of the annular boss is a smooth shaft section. The smooth shaft section is inserted into the sleeve 7 and is rotatably connected to the sleeve 7.

[0044] like Figure 8 As shown, the bottom end of the sleeve 7 is provided with a flange 8, which is fixedly connected to the welding station rotating base 2 by multiple bolts.

[0045] The rotating base 2 of the welding station is fixed to the top of at least three support legs 1. In this embodiment, for example... Figure 9 As shown, the welding station rotating base 2 is fixed to the top of the three support legs 1. The three support legs 1 form a stable support structure, ensuring the stability of the welding station rotating base 2 and the components it supports.

[0046] Furthermore, to facilitate the operator's rotation of the base 3-1, a rotating operating component is provided on the side of the base 3-1 or the support 3-7. In this embodiment, the rotating operating component is an operating ring 9, which is formed by bending a long strip of plate. The two ends of the long strip of plate are folded to form a fixing plate. The fixing plate is fixedly connected to the side of the base 3-1 or the support 3-7 by two screws. In this embodiment, the fixing plate is fixedly connected to the side of the support 3-7.

[0047] The operator can hold the operating ring 9 to rotate the base 3-1.

[0048] Example 2 This embodiment provides a working method for the rotating hinge welding table described in Embodiment 1, including the following steps: Step 1: Place the hinge body on the top surface of the vertical positioning platform 3-3. The bottom surface of the first plate part 4 of the hinge body is in contact with the top surface of the vertical positioning platform 3-3, and the inner side of the second plate part 6 is in contact with the outer side of the vertical positioning platform 3-3 and the second outer side of the base 3-1.

[0049] Place the rotating shaft 5 into the shaft groove 3-4.

[0050] The vertical positioning of the hinge body is completed by the vertical positioning table 3-3, and the vertical positioning of the rotating shaft 5 is completed by the horizontal groove surface of the shaft groove 3-4.

[0051] Step 2: Move the hinge body and the pivot 5 so that the end of the first shaft segment of the pivot 5 is in contact with the second positioning block 3-6, that is, the thick end of the pivot is in contact with the second positioning block 3-6, and the edge of the second plate part 6 of the hinge body is in contact with the second positioning block 3-6. Step 2 completes the positioning of the pivot 5 and the hinge body along the second horizontal direction.

[0052] Step 3: Rotate the first positioning block 3-5 until the end of the first positioning block 3-5 corresponds to the first shaft segment of the rotating shaft 5, and then tighten the wing nut 3-6 so that the first positioning block 3-5, in conjunction with the vertical groove surface of the shaft groove 3-4, clamps the first shaft segment of the rotating shaft, thus completing the positioning of the rotating shaft 5 along the first horizontal direction.

[0053] Step 4: As Figure 10 As shown, pressing the handle 3-13 causes the pusher 3-10 to rotate around the second hinge axis 3-12, and its protruding part 3-16 extends to the outside of the bracket 3-8. The protruding part 3-16 cooperates with the second outer side of the base 3-1 to clamp the second plate part 6 of the hinge body, thus completing the positioning and fixing of the hinge body along the first horizontal direction.

[0054] Step 5: At this point, the welder can perform welding operations on the edges of the pivot 5 and the third plate 10 of the hinge body.

[0055] During the welding process, the welder can rotate the base 3-1 through the operating ring 9 to weld from different positions of the contact part of the hinge body and the rotating shaft 5 until the hinge body and the rotating shaft 5 are welded and fixed.

[0056] After welding is completed, such as Figure 11 As shown, lift the handle 3-13, loosen the hinge body by lifting the protrusion 3-16 and the second outer side of the base 3-1, then loosen the wing nut 3-6, rotate the first positioning block 3-5 to disengage the first positioning block 3-5 from the pivot 5, and then remove the welded hinge body and pivot 5, thus completing the welding work of the hinge body and pivot 5.

[0057] In the welding bench operation method of this embodiment, the hinge body and the rotating shaft 5 are positioned in three directions in space. The protruding part 3-16 of the base 3-1 and the pusher 3-10 clamps the second plate 6 to complete the fixation, which will not cause hinge deformation. This ensures the accuracy of the relative position of the rotating shaft 5 and the hinge body, thereby ensuring the precision of the welding position, ultimately ensuring product quality, reducing scrap rate and dimensional defect rate, and saving costs.

[0058] Meanwhile, the base 3-1 can rotate, making it suitable for welding personnel in any position, thus improving its applicability. Through the rotation of the base 3-1, welding can be performed at multiple points where the hinge body and the rotating shaft 5 are in contact, and the welding position is not limited, which improves the strength and quality of the welding.

[0059] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A hinge welding table, characterized in that, The device includes a base, a vertical positioning platform for vertically positioning the hinge body on one side of the top surface of the base, and a shaft groove on the other edge of the top surface of the base for placing a rotating shaft for vertical positioning via a bottom horizontal groove. A first positioning block connected to the first outer side of the base is provided on one side of the shaft groove, and the rotating shaft positioning block can cooperate with the vertical groove surface of the shaft groove to position the rotating shaft along a first horizontal direction. The first positioning block is provided on the first outer side of the base, and a pushing mechanism is provided on the outer side of the second side of the other side. The pushing mechanism is used to cooperate with the base to position the hinge body along the first horizontal direction. At least one side of the base parallel to the first horizontal direction is provided with a second positioning block, which is used to position the rotating shaft and the hinge body along a second horizontal direction. The first horizontal direction is perpendicular to the second horizontal direction.

2. The hinge welding table as described in claim 1, characterized in that, The first positioning block is rotatably connected to the base, and a locking component is provided between the first positioning block and the base.

3. The hinge welding table as described in claim 2, characterized in that, The base has a threaded rod on its first outer side. The threaded rod passes through the first positioning block and is rotatably connected to the first positioning block. The locking component is a locking nut located outside the first positioning block, and the locking nut is threadedly connected to the threaded rod.

4. The rotating hinge welding table as described in claim 1, characterized in that, The base has two sides parallel to the first horizontal direction, each fixed with a second positioning block. One end of the second positioning block extends to the vertical groove surface that passes through the shaft groove, and the other end extends to the second outer side surface of the base.

5. A rotating hinge welding table as described in claim 1, characterized in that, The pushing mechanism includes a bracket, which is hinged to one end of a rocker arm and a pushing member. The pushing member is located near the base. The other end of the rocker arm is hinged to a first hinge position of the handle head, and the other end of the pushing member is hinged to a second hinge position of the handle head. The second hinge position is located outside the first hinge position. The pushing member has a protruding part for pushing the hinge body. When the handle moves, the protruding part can switch between extending out of the bracket and retracting into the bracket.

6. The rotating hinge welding table as described in claim 1, characterized in that, The jacking mechanism is fixed on the support, which is located on one side of the base and integrally connected to the base.

7. A hinge welding table as described in claim 6, characterized in that, The base is provided with a rotating shaft at its bottom, and the base is connected to the rotating base of the welding station via the rotating shaft.

8. A hinge welding table as described in claim 7, characterized in that, The side of the support or base is equipped with a rotating operating component, which allows the operator to rotate the base and support.

9. A hinge welding table as described in claim 7, characterized in that, The soldering station rotating base is connected to the top of at least three legs, which are used to support the soldering station rotating base.

10. A method for operating a rotating hinge welding table according to any one of claims 1-9, characterized in that, Includes the following steps: Place the hinge body on the vertical positioning platform, place the pivot inside the pivot groove, use the vertical positioning platform to position the hinge body vertically, and use the horizontal groove of the pivot groove to position the pivot vertically. Move the thick end of the hinge body and the pivot to the end point to contact the second positioning block, and position the hinge body and the pivot along the second horizontal direction; The first positioning block and the vertical groove of the shaft groove are used to position the thick end of the rotating shaft along the first horizontal direction, and the hinge body is positioned along the first horizontal direction by the jacking mechanism and the base. The hinge body and the pivot are welded together to fix them in place.

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