A lightning arrester assembling tool

Abstract

This utility model discloses a surge arrester assembly fixture for installing a cylindrical surge arrester into a T-shaped housing. The fixture includes a mounting plate with a clamping cylinder and a positioning plate for positioning the T-shaped housing. Two sets of fixing components are slidably mounted on the mounting plate to fix the cylindrical surge arrester, ensuring alignment between the arrester and the T-shaped housing. A clamping block is mounted on the piston rod of the clamping cylinder. The advantages of this utility model are: by positioning the T-shaped housing with the positioning plate and clamping the cylindrical surge arrester with the slidably mounted fixing components, the installation interface between the cylindrical surge arrester and the T-shaped housing is effectively aligned before pressing, overcoming the technical difficulty of ensuring coaxiality and positioning accuracy in manual installation, and significantly improving the accuracy and consistency of the assembly position.

Description

Technical Field

[0001] This utility model relates to a lightning arrester assembly fixture. Background Technology

[0002] During the assembly of power equipment, the columnar surge arrester (40) needs to be precisely installed into the T-shaped housing (50). The T-shaped housing (50) typically has a first connecting pipe (51) and a second connecting pipe (52) that are perpendicular to each other, and its structure is quite special.

[0003] Traditional installation methods mainly rely on manual operation. However, when manually placing and fixing the T-shaped housing (50) and the columnar surge arrester (40), it is difficult to ensure that the installation interfaces of the two are precisely aligned before press-fitting. This can easily lead to axial misalignment (i.e., coaxiality difference) during installation, which not only affects the installation effect but may also reduce the electrical performance and sealing of the surge arrester, posing a hidden danger to the operation of the equipment. In view of this, this utility model proposes a surge arrester assembly fixture to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a surge arrester assembly fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A surge arrester assembly fixture for installing a columnar surge arrester into a T-shaped housing includes a mounting plate, on which a clamping cylinder is provided;

[0007] The mounting plate is equipped with a positioning plate for positioning the T-shaped housing. Two sets of fixing components are slidably mounted on the mounting plate for fixing the columnar surge arrester, so that the columnar surge arrester is aligned with the T-shaped housing. The piston rod of the pressing cylinder is equipped with a pressing block, which contacts the columnar surge arrester, causing the columnar surge arrester to move toward the T-shaped housing and press the columnar surge arrester into the T-shaped housing.

[0008] As an improvement to the above technical solution, the T-shaped housing includes a first connecting pipe and a second connecting pipe, the second connecting pipe being connected to the center of the first connecting pipe, and the axis of the second connecting pipe being perpendicular to the axis of the first connecting pipe.

[0009] The positioning plate includes a first positioning block, a second positioning block is disposed on the first positioning block, and a positioning screw is disposed between the first positioning block and the second positioning block.

[0010] As an improvement to the above technical solution, the positioning screw is rotatably mounted on the first positioning block, and two sets of guide rods are symmetrically arranged on the first positioning block;

[0011] The second positioning block has a positioning threaded hole, and two sets of guide holes are provided on both sides of the positioning threaded hole. The positioning screw is threadedly connected to the positioning threaded hole, and the two sets of guide rods are slidably arranged in the two sets of guide holes respectively.

[0012] As an improvement to the above technical solution, the first positioning block is provided with a first arc-shaped surface, and the second positioning block is provided with a second arc-shaped surface. The first arc-shaped surface and the second arc-shaped surface are in contact with the outer wall of the first connecting pipe to position the T-shaped housing.

[0013] As an improvement to the above technical solution, a positioning handwheel is provided on the positioning screw;

[0014] An extension pad is provided on the first positioning block, and the extension pad contacts the second connecting pipe so that the second connecting pipe remains horizontal.

[0015] As an improvement to the above technical solution, the fixing component includes a fixing plate, the fixing plate is provided with two sets of fixing threaded holes, and fixing screws are threadedly connected to both sets of fixing threaded holes;

[0016] The bottom ends of the two sets of fixing screws are provided with a first fixing arc plate, which is rotatably connected to the fixing screws, and the columnar surge arrester is placed on the first fixing arc plate.

[0017] As an improvement to the above technical solution, the fixing plate is also provided with a clamping threaded hole, in which a clamping screw is threadedly connected. The bottom end of the clamping screw is rotatably provided with a second fixing arc plate. The second fixing arc plate is displaced toward the first fixing arc plate to press the columnar surge arrester onto the first fixing arc plate.

[0018] As an improvement to the above technical solution, support plates are provided at both ends of the fixing plate, and support blocks are provided on the support plates;

[0019] Two sets of T-shaped guide rails are symmetrically arranged on the mounting plate, and T-shaped grooves are opened on the support block. The two sets of T-shaped guide rails are respectively arranged in the two sets of T-shaped grooves.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] The T-shaped housing is positioned by the positioning plate, and the columnar surge arrester is clamped and fixed by the sliding fixing component. This effectively ensures that the installation interface between the columnar surge arrester and the T-shaped housing is accurately aligned before press-fitting, overcoming the technical difficulty of ensuring coaxiality and positioning accuracy in manual installation, and significantly improving the accuracy and consistency of the assembly position.

[0022] By replacing traditional manual hammering or prying with a clamping block driven by a clamping cylinder, the pressing action of the columnar surge arrester into the T-shaped housing is mechanized and automated. This design significantly simplifies the operation process, greatly reduces the installation time of a single workpiece, and improves production efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A;

[0025] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0026] Figure 4 This is a schematic diagram of the mounting plate of this utility model;

[0027] Figure 5 This is a schematic diagram of the positioning plate of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the second positioning block of this utility model;

[0029] Figure 7 This is a schematic diagram of the structure of the fixing component of this utility model;

[0030] Figure 8 This is a schematic diagram of the structure of the fixing plate of this utility model.

[0031] In the diagram: 10. Mounting plate; 11. T-shaped guide rail; 20. Clamping cylinder; 21. Clamping block; 30. Fixing assembly; 31. First fixing arc plate; 32. Second fixing arc plate; 33. Fixing plate; 331. Clamping threaded hole; 332. Fixing threaded hole; 34. Fixing screw; 35. Clamping screw; 36. Support plate; 37. Support block; 38. T-slot; 40. Columnar surge arrester; 50. T-shaped housing; 51. First connecting pipe; 52. Second connecting pipe; 60. Positioning plate; 61. First positioning block; 62. Second positioning block; 621. Positioning threaded hole; 622. Guide hole; 63. Positioning screw; 64. Guide rod; 65. Positioning handwheel; 66. First arc surface; 67. Second arc surface; 68. Extension pad. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Example:

[0034] like Figure 1-8 As shown, this embodiment proposes a surge arrester assembly fixture for installing a columnar surge arrester 40 into a T-shaped housing 50, including a mounting plate 10, on which a clamping cylinder 20 is provided;

[0035] The mounting plate 10 is provided with a positioning plate 60 for positioning the T-shaped housing 50. Two sets of fixing components 30 are slidably arranged on the mounting plate 10. The fixing components 30 are used to fix the columnar surge arrester 40 so that the columnar surge arrester 40 is aligned with the T-shaped housing 50. The piston rod of the pressing cylinder 20 is provided with a pressing block 21. The pressing block 21 contacts the columnar surge arrester 40, causing the columnar surge arrester 40 to move toward the T-shaped housing 50 and press the columnar surge arrester 40 into the T-shaped housing 50.

[0036] In this embodiment, when the columnar surge arrester 40 is installed on the T-shaped housing 50, the T-shaped housing 50 is fixed by the positioning plate 60. Then, the columnar surge arrester 40 is placed on the fixing component 30. The position of the T-shaped housing 50 is adjusted by the fixing component 30 so that the columnar surge arrester 40 is aligned with the installation position of the T-shaped housing 50. At the same time, the columnar surge arrester 40 is fixed by the fixing component 30. Then, the pressing cylinder 20 operates, causing the pressing block 21 to move toward the columnar surge arrester 40 and contact the columnar surge arrester 40, driving the columnar surge arrester 40 to move toward the T-shaped housing 50, pressing the columnar surge arrester 40 into the T-shaped housing 50, thus completing the installation process of the columnar surge arrester 40 and the T-shaped housing 50.

[0037] The T-shaped housing 50 is positioned by the positioning plate 60, and the columnar surge arrester 40 is clamped and fixed by the sliding fixing component 30. This effectively ensures that the installation interface of the columnar surge arrester 40 and the T-shaped housing 50 is accurately aligned before pressing. This overcomes the technical difficulty of ensuring coaxiality and positioning accuracy in manual installation, and significantly improves the accuracy and consistency of the assembly position.

[0038] By using a clamping cylinder 20 to drive the clamping block 21, the traditional manual hammering or prying is replaced, thus achieving the mechanization and automation of the pressing action of the columnar surge arrester 40 into the T-shaped housing 50. This design significantly simplifies the operation process, greatly shortens the installation time of a single workpiece, and improves production efficiency.

[0039] Specifically, the T-shaped housing 50 includes a first connecting pipe 51 and a second connecting pipe 52. The second connecting pipe 52 is connected to the center of the first connecting pipe 51, and the axis of the second connecting pipe 52 is perpendicular to the axis of the first connecting pipe 51.

[0040] The positioning plate 60 includes a first positioning block 61, a second positioning block 62 is provided on the first positioning block 61, and a positioning screw 63 is provided between the first positioning block 61 and the second positioning block 62.

[0041] In this embodiment, a split design, namely the first positioning block 61 and the second positioning block 62 combined with the adjustment mechanism of the positioning screw 63, is used to achieve high-precision positioning of the irregular T-shaped shell 50 in space. This design effectively solves the technical problem of the irregular shell being difficult to support stably and orient accurately in tooling, and ensures the reliability of the subsequent assembly reference.

[0042] Specifically, the positioning screw 63 is rotatably mounted on the first positioning block 61, and two sets of guide rods 64 are symmetrically arranged on the first positioning block 61.

[0043] The second positioning block 62 has a positioning threaded hole 621, and two sets of guide holes 622 are provided on both sides of the positioning threaded hole 621. The positioning screw 63 is threadedly connected to the positioning threaded hole 621, and the two sets of guide rods 64 are slidably disposed in the two sets of guide holes 622 respectively.

[0044] In this embodiment, by forming a precision threaded transmission pair between the positioning screw 63 and the positioning threaded hole 621 on the second positioning block 62, rotating the positioning screw 63 can precisely drive the second positioning block 62 to produce a minute, controllable linear displacement along a preset direction. This design effectively solves the technical problem of needing to finely adjust the positioning height of irregularly shaped workpieces. The adjustment accuracy can reach the level of the thread lead, which is significantly better than traditional shim or pin-type positioning methods. At the same time, it can also be used to position T-shaped housings 50 of different specifications.

[0045] Specifically, the first positioning block 61 is provided with a first arc-shaped surface 66, and the second positioning block 62 is provided with a second arc-shaped surface 67. The first arc-shaped surface 66 and the second arc-shaped surface 67 are in contact with the outer wall of the first connecting pipe 51 to position the T-shaped housing 50.

[0046] In this embodiment, the first arc-shaped surface 66 and the second arc-shaped surface 67 together form a contour clamping structure that closely matches the outer cylindrical surface of the first connecting pipe 51 of the T-shaped housing 50. Compared with point or line contact, the arc-shaped contact surface significantly increases the effective contact area with the outer wall of the first connecting pipe 51. This design makes the positioning reaction force evenly distributed on the surface of the workpiece, greatly reducing the pressure per unit area and effectively avoiding the risk of indentation, plastic deformation or even rupture caused by local stress concentration in thin-walled pipes. It is especially suitable for surge arrester housing protection with strict surface requirements or fragile materials.

[0047] Specifically, a positioning handwheel 65 is provided on the positioning screw 63;

[0048] An extension pad 68 is provided on the first positioning block 61. The extension pad 68 contacts the second connecting pipe 52, so that the second connecting pipe 52 remains horizontal.

[0049] In this embodiment, the extension pad 68 extends from the first positioning block 61 to the bottom of the second connecting pipe 52, providing full-time and stable auxiliary support for its cantilever section. This design precisely counteracts the gravitational torque generated by the self-weight of the second connecting pipe 52 and the reaction force of the surge arrester, rigidly maintaining its axis in a horizontal state, and completely solving the technical problem that cantilever pipes will inevitably sag under unsupported conditions.

[0050] Specifically, the fixing component 30 includes a fixing plate 33, which is provided with two sets of fixing threaded holes 332, and fixing screws 34 are threadedly connected to both sets of fixing threaded holes 332.

[0051] The bottom ends of the two sets of fixing screws 34 are provided with a first fixing arc plate 31, the first fixing arc plate 31 is rotatably connected to the fixing screws 34, and the columnar surge arrester 40 is placed on the first fixing arc plate 31.

[0052] Specifically, the fixing plate 33 is also provided with a clamping threaded hole 331, and a clamping screw 35 is threadedly connected in the clamping threaded hole 331. A second fixing arc plate 32 is rotatably provided at the bottom end of the clamping screw 35. The second fixing arc plate 32 moves toward the first fixing arc plate 31 to press the columnar surge arrester 40 onto the first fixing arc plate 31.

[0053] In this embodiment, two sets of fixing screws 34 are independently screwed into fixing threaded holes 332, driving the first fixing arc plate 31 to perform independent and precise adjustment in the vertical direction. This design allows the height of the two support points to be set differently, actively compensating for manufacturing tolerances or slight bending deformation of the columnar surge arrester 40, ensuring that the axis of the columnar surge arrester 40 is always within the preset mounting plane, laying the foundation for precise alignment with the T-shaped housing 50;

[0054] The clamping screw 35 drives the second fixed arc plate 32 to move vertically by screwing into the clamping threaded hole 331, applying a continuously adjustable clamping force to the columnar surge arrester 40. This design replaces the traditional rigid clamp structure, and the operator can precisely control the clamping degree according to the specifications and material characteristics of the columnar surge arrester 40, perfectly balancing the fixation reliability and the device protection requirements.

[0055] Specifically, the fixed plate 33 is provided with support plates 36 at both ends, and support blocks 37 are provided on the support plates 36;

[0056] Two sets of T-shaped guide rails 11 are symmetrically arranged on the mounting plate 10, and T-shaped grooves 38 are opened on the support block 37. The two sets of T-shaped guide rails 11 are respectively arranged in the two sets of T-shaped grooves 38.

[0057] In this embodiment, when the columnar surge arrester 40 is pressed into the T-shaped housing 50, with the cooperation of the T-shaped guide rail 11 and the T-shaped groove 38, the pressing block 21 can drive the fixing component 30 to move in the direction of the T-shaped housing 50, so that the columnar surge arrester 40 can be pressed into the T-shaped housing 50.

[0058] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A surge arrester assembly fixture, characterized in that: For installing a columnar surge arrester (40) into a T-shaped housing (50), including a mounting plate (10) on which a clamping cylinder (20) is provided; The mounting plate (10) is provided with a positioning plate (60) for positioning the T-shaped housing (50). Two sets of fixing components (30) are slidably provided on the mounting plate (10). The fixing components (30) are used to fix the columnar surge arrester (40) so that the columnar surge arrester (40) is aligned with the T-shaped housing (50). The piston rod of the pressing cylinder (20) is provided with a pressing block (21). The pressing block (21) contacts the columnar surge arrester (40) so that the columnar surge arrester (40) moves toward the T-shaped housing (50) and presses the columnar surge arrester (40) into the T-shaped housing (50).

2. The surge arrester assembly fixture according to claim 1, characterized in that: The T-shaped housing (50) includes a first connecting pipe (51) and a second connecting pipe (52). The second connecting pipe (52) is connected to the center of the first connecting pipe (51), and the axis of the second connecting pipe (52) is perpendicular to the axis of the first connecting pipe (51). The positioning plate (60) includes a first positioning block (61), a second positioning block (62) is provided on the first positioning block (61), and a positioning screw (63) is provided between the first positioning block (61) and the second positioning block (62).

3. The surge arrester assembly fixture according to claim 2, characterized in that: The positioning screw (63) is rotatably mounted on the first positioning block (61), and two sets of guide rods (64) are symmetrically arranged on the first positioning block (61). The second positioning block (62) has a positioning threaded hole (621), and two sets of guide holes (622) are provided on both sides of the positioning threaded hole (621). The positioning screw (63) is threadedly connected to the positioning threaded hole (621), and the two sets of guide rods (64) are slidably arranged in the two sets of guide holes (622).

4. The surge arrester assembly fixture according to claim 3, characterized in that: The first positioning block (61) is provided with a first arc-shaped surface (66), and the second positioning block (62) is provided with a second arc-shaped surface (67). The first arc-shaped surface (66) and the second arc-shaped surface (67) are in contact with the outer wall of the first connecting pipe (51) to position the T-shaped housing (50).

5. The surge arrester assembly fixture according to claim 4, characterized in that: The positioning screw (63) is provided with a positioning handwheel (65). An extension pad (68) is provided on the first positioning block (61), and the extension pad (68) contacts the second connecting pipe (52) so that the second connecting pipe (52) remains horizontal.

6. The surge arrester assembly fixture according to claim 1, characterized in that: The fixing component (30) includes a fixing plate (33), which has two sets of fixing threaded holes (332), and a fixing screw (34) is threaded into each of the two sets of fixing threaded holes (332). The bottom ends of the two sets of fixing screws (34) are provided with a first fixing arc plate (31), the first fixing arc plate (31) is rotatably connected to the fixing screw (34), and the columnar lightning arrester (40) is placed on the first fixing arc plate (31).

7. The surge arrester assembly fixture according to claim 6, characterized in that: The fixed plate (33) is also provided with a clamping threaded hole (331), and a clamping screw (35) is threadedly connected in the clamping threaded hole (331). A second fixed arc plate (32) is rotatably provided at the bottom end of the clamping screw (35). The second fixed arc plate (32) moves toward the first fixed arc plate (31) to press the columnar surge arrester (40) onto the first fixed arc plate (31).

8. The surge arrester assembly fixture according to claim 7, characterized in that: The fixed plate (33) is provided with support plates (36) at both ends, and support blocks (37) are provided on the support plates (36). Two sets of T-shaped guide rails (11) are symmetrically arranged on the mounting plate (10), and T-shaped grooves (38) are opened on the support block (37). The two sets of T-shaped guide rails (11) are respectively arranged in the two sets of T-shaped grooves (38).

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