Contact seat alignment tool for circuit breaker

Abstract

The application discloses a contact seat alignment tool for circuit breaker and relates to the technical field of contact seat processing. The application comprises a positioning assembly symmetrically arranged on the inner side of the upper end of a contact seat body and a pressing plate symmetrically pressed on the top surface of the contact seat body. The positioning assembly comprises a positioning column, a limiting plate, a connecting plate, an adjusting disc and a locking column. Two positioning columns are symmetrically arranged horizontally and are both slidingly sleeved on the limiting plate. One end of each positioning column is connected to the same linkage plate. The linkage plate on the other side of which the limiting plate is arranged is provided with the connecting plate. The adjusting disc is arranged below the connecting plate. The outer side wall of the adjusting disc is fixedly provided with an adjusting ring, which is arranged in the same clockwise direction and gradually increases or decreases in diameter. The locking column is slidingly sleeved in the middle of the adjusting disc. The application can realize the alignment of contact seat bodies of different sizes during processing. The overall clamping and positioning operation is convenient and practical.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of contact seat machining, in particular to a contact seat alignment tool for circuit breakers. BACKGROUND

[0002] In the process of machining the contact seat, the cylindrical contact seat body is first cast from aluminum material, then a stepped hole is machined on the contact seat body, a suitable type of bolt is selected, anaerobic glue is applied to the screw rod segment of the bolt and quickly screwed into the threaded hole segment of the stepped hole, and mechanical external force is applied to make the stop surface of the bolt stop with the front end surface of the contact seat, and finally a boss and a shaft pin hole are machined on the part of the bolt exposed to the front end of the contact seat. In actual processing, the relative position relationship between the connecting piece and the contact seat body is required to be very high, especially the size tolerance of the shaft pin hole itself, the parallelism of the connecting piece side surface and the beam side surface, and the perpendicularity of the shaft pin hole axis and the beam side surface, so when the shaft pin hole is machined after the bolt and the contact seat body are bonded, the alignment needs to be performed first.

[0003] As the existing public literature, CN111168421A-Contact seat alignment tool for circuit breakers, discloses a contact seat alignment tool for circuit breakers, which includes a beam, defines the diameter of the contact seat parallel to the beam as a first diameter, and the diameter of the contact seat perpendicular to the beam as a second diameter; the alignment plate includes an alignment part and a fixing part, the alignment part is used to fit with the side surface of the beam parallel to the axis of the contact seat to align the contact seat, and the fixing part is connected with the alignment part, and the two parts form an avoidance groove for avoiding the protrusion on the beam of the contact seat; the limiting piece is fixed on the base and is used to be offset from the extension direction of the second diameter, and the limiting piece cooperates with the alignment plate to center the contact seat. When the contact seat is aligned by using the contact seat alignment tool for circuit breakers, the alignment is fast and convenient to operate, and the alignment efficiency is improved, thereby improving the production efficiency.

[0004] Although the alignment tool in the existing public literature can realize the alignment in the process of machining the contact seat, the existing alignment tool still has the following deficiencies in actual use:

[0005] 1. The existing alignment tool mainly realizes the positioning and alignment of the contact seat body through the cooperation of the avoidance groove and the beam, but such an alignment method cannot be applied to the use of contact seat bodies of different sizes, and the overall practicality is poor;

[0006] 2. When the existing alignment tool is used, the position of the pressing plate is mainly adjusted by locking the bolt, and then the contact seat body is clamped and fixed, which requires the bolts on the two pressing plates to be screwed respectively, which is troublesome and prone to large deviations;

[0007] Therefore, it is necessary to improve the existing technology to solve the above technical problems. SUMMARY

[0008] The contact seat alignment tool for circuit breakers has good applicability and is convenient to clamp and fix, and solves the problems that the existing contact seat alignment tool cannot be applied to different contact seats and is inconvenient to operate during alignment in actual use.

[0009] To solve the above technical problems, the present application is realized by the following technical scheme:

[0010] The contact seat alignment tool for circuit breakers comprises positioning assemblies symmetrically arranged on the inner side of the upper end of the contact seat body and pressing plates symmetrically pressed on the top surface of the contact seat body, the positioning assemblies comprise positioning columns, limiting plates, connecting plates, adjusting discs and locking columns;

[0011] The two positioning columns are horizontally and symmetrically arranged, and are both slidingly sleeved on the limiting plates, one end of each of the two positioning columns is connected to the same linkage plate, a connecting plate is arranged on the other side of the linkage plate on which the limiting plate is arranged, an adjusting disc is arranged below the connecting plate, an adjusting ring is fixedly arranged on the outer side wall of the adjusting disc, and the adjusting ring is arranged in a gradually increasing or decreasing radial dimension in the same clockwise direction;

[0012] A locking column is slidingly sleeved on the middle part of the adjusting disc, a first limiting groove is symmetrically arranged on the side wall of the locking column in the axial direction, and a first limiting strip is arranged on the adjusting disc and is gap-fitted in the first limiting groove.

[0013] Further, L-shaped connecting rods are symmetrically arranged on both sides below the adjusting disc, and the two ends of each of the L-shaped connecting rods are connected to the limiting plate and the connecting plate, respectively.

[0014] Further, a first protrusion and a second protrusion are integrally formed on the middle part of each side of the connecting plate.

[0015] Further, a threaded through hole is arranged on the second protrusion, an external thread is arranged on the upper end of the outer side of the locking column and is screw-fitted with the threaded through hole, and an adjusting handle is fixedly arranged on the top surface of the locking column.

[0016] Further, a connecting column is fixedly arranged on the top surface of the first protrusion, and a connecting piece is integrally formed on the upper side wall of one end of the pressing plate and is fixedly connected to the upper end of the connecting column.

[0017] Further, a second limiting strip is symmetrically fixedly arranged on the outer side wall of the positioning column in the axial direction, and a second limiting groove is arranged on the limiting plate and is gap-fitted with the second limiting strip.

[0018] Further, guide strips are symmetrically fixedly arranged on the side wall of the linkage plate above and below the adjusting disc.

[0019] Further, the movable rods are fixedly connected to the two ends of the same U-shaped plate.

[0020] The movable rods are slidably sleeved on the positioning blocks, and the bottom surface of the positioning block is fixedly connected to the base through the supporting rod.

[0021] Further, the middle part of the U-shaped plate is slidably sleeved with a locking bolt, and the top surface of the base is provided with a threaded blind hole for screwing the lower end of the locking bolt.

[0022] Further, the base is provided with mounting holes at the four corners.

[0023] The present application has the following advantages:

[0024] 1. In use, the two positioning assemblies are arranged on the two sides of the cross beam, and the rotation of the locking column is driven by the adjusting handle to realize the rotation of the adjusting disc, and the positioning column moves in the horizontal direction under the abutment of the adjusting ring on the linkage plate, so that the positioning column can be adaptively adjusted according to the width of the cross beam, so that one end of the positioning column is always abutted on the cross beam, and the alignment of the contact seat body is completed. The positioning assembly can be used for alignment of contact seat bodies of different sizes, and has good overall practicability.

[0025] 2. In use, the worker first places the contact seat body on the base, then presses the pressing plates on the top surface of the contact seat body on both sides, then the worker pulls down the U-shaped plate, and limits the downward U-shaped plate by tightening the locking bolt. Through the limiting, the pressing plate can limit the contact seat body, the limiting method is simple and can effectively prevent the contact seat body from shifting during pressing, and has good alignment effect. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0027] Figure 1 It is the overall structure diagram of the alignment tool for the contact seat of the circuit breaker.

[0028] Figure 2 It is the cooperation diagram of the positioning assembly and the pressing plate.

[0029] Figure 3 It is the overall structure diagram of the positioning assembly.

[0030] Figure 4 It isFigure 3 schematic diagram of the bottom of the structure;

[0031] Figure 5 exploded view of the positioning assembly;

[0032] Figure 6 schematic diagram of the overall structure of the base;

[0033] Figure 7 schematic diagram of the cooperation between the contact seat alignment tool for circuit breakers and the contact seat body.

[0034] In the drawings, the components represented by each reference numeral are listed as follows:

[0035] 1, positioning assembly; 2, pressing plate; 3, base; 4, contact seat body; 101, positioning column; 102, limiting plate; 103, connecting plate; 104, adjusting disc; 105, locking column; 201, movable rod; 202, U-shaped plate; 203, locking bolt; 204, connecting piece; 301, positioning block; 302, mounting hole; 303, support rod; 304, threaded blind hole; 1011, linkage plate; 1012, second limiting strip; 1013, guide strip; 1021, L-shaped connecting rod; 1022, second limiting groove; 1031, connecting column; 1032, first protrusion; 1033, second protrusion; 1034, threaded through hole; 1041, first limiting strip; 1042, adjusting ring; 1051, first limiting groove; 1052, external thread; 1053, adjusting handle. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0037] Please refer to Figures 1 to 2 and Figures 5 to 7 , the present application is a contact seat alignment tool for circuit breakers, which comprises a positioning assembly 1 symmetrically arranged on the inner side of the upper end of a contact seat body 4 and a pressing plate 2 symmetrically pressed on both sides of the top surface of the contact seat body 4. The positioning assembly 1 comprises a positioning column 101, a limiting plate 102, a connecting plate 103, an adjusting disc 104 and a locking column 105. The positioning column 101 is abutted on both sides of the crossbeam on the contact seat body 4.

[0038] The pressing plate 2 is fixedly arranged on the bottom surface of one end of the outer side of the contact seat body 4, and a movable rod 201 is arranged on the bottom surface of the one end of the outer side of the contact seat body 4. The lower ends of the two movable rods 201 are fixedly connected to the two ends of a U-shaped plate 202.

[0039] The movable rod 201 is slidingly sleeved on a positioning block 301, so that the limiting and guiding of the up-and-down movement of the movable rod 201 can be realized. The bottom surface of the positioning block 301 is fixedly connected to the base 3 through a support rod 303.

[0040] The middle part of the U-shaped plate 202 is sleeved with a locking bolt 203, and the top surface of the base 3 is provided with a threaded blind hole 304 for screwing the lower end of the locking bolt 203, so as to limit and fix the U-shaped plate 202.

[0041] The four corner positions of the base 3 are provided with mounting holes 302, which facilitates the installation of the device on the milling machine, so as to realize the milling of the contact seat body 4 and the drilling of the shaft pin hole.

[0042] The above setting is used, the staff first places the contact seat body 4 on the base 3, adjusts the position of the positioning column 101 to complete the alignment of the contact seat body 4, pulls down the U-shaped plate 202 after the alignment is completed to realize the pressing plate 2 is pressed on the top surface of the contact seat body 4, finally twists the locking bolt 203 to realize the limiting and fixing of the U-shaped plate 202, so as to complete the limiting of the pressing plate 2 to the contact seat body 4, after the alignment and fixing of the device to the contact seat body 4 is completed, the base 3 is installed on the milling machine, the outer contour milling of the connecting piece and the drilling of the shaft pin hole are completed.

[0043] Please refer to Figures 2 to 5 As shown in the figure, the two positioning columns 101 are horizontally symmetrical, and the two positioning columns 101 are sleeved on the limiting plate 102, one end of the two positioning columns 101 is connected to the same linkage plate 1011, the other side of the linkage plate 1011 provided with the limiting plate 102 is provided with a connecting plate 103, the lower side of the connecting plate 103 is provided with an adjusting disc 104, the outer wall of the adjusting disc 104 is fixedly provided with an adjusting ring 1042, and the adjusting ring 1042 is gradually increased or decreased along the same clock direction, so that the rotation of the adjusting ring 1042 can be driven when the adjusting disc 104 rotates, thereby realizing the extrusion of the adjusting ring 1042 to the linkage plate 1011, and realizing the position adjustment of the linkage plate 1011 in the horizontal direction;

[0044] The middle part of the adjusting disc 104 is sleeved with a locking column 105, the sidewall of the locking column 105 is symmetrically provided with a first limiting groove 1051 along the axis direction, and the adjusting disc 104 is provided with a first limiting strip 1041 for gap fitting in the first limiting groove 1051, so as to realize the rotation of the locking column 105 driving the adjusting disc 104;

[0045] The two sides of the adjusting disc 104 are symmetrically provided with L-shaped connecting rods 1021, and the two ends of the L-shaped connecting rods 1021 are respectively connected to the limiting plate 102 and the connecting plate 103;

[0046] The middle part of the connecting plate 103 is integrally provided with a first protrusion 1032 and a second protrusion 1033;

[0047] A threaded through hole 1034 is formed in the second protrusion 1033, an outer thread 1052 is formed on the outer side of the upper end of the locking column 105 and is screwed with the threaded through hole 1034, and an adjusting handle 1053 is fixed on the top surface of the locking column 105. This arrangement can realize the rotation of the locking column 105 and the adjusting disc 104, and can also realize the movement of the locking column 105 relative to the adjusting disc 104, and can realize the limiting and fixing of the locking column 105 in cooperation with the threaded through hole 1034.

[0048] A connecting column 1031 is fixed on the top surface of the first protrusion 1032, and a connecting piece 204 is integrally formed on the upper side wall of one end of the pressing plate 2 and is fixedly connected with the upper end of the connecting column 1031, so as to realize the fixed connection between the positioning assembly 1 and the pressing plate 2.

[0049] The second limiting strip 1012 is symmetrically fixed on the outer side wall of the positioning column 101 along the axial direction, and the second limiting groove 1022 is formed in the limiting plate 102 and is gap-connected with the second limiting strip 1012, so as to realize the limiting of the positioning column 101.

[0050] The guide strips 1013 are symmetrically fixed on the side wall of the linkage plate 1011 above and below the adjusting disc 104, so as to realize the limiting of the adjusting disc 104.

[0051] In use, the worker rotates the locking column 105 through the adjusting handle 1053, drives the adjusting disc 104 to rotate, and realizes the position adjustment of the positioning column 101 in the horizontal direction under the extrusion of the adjusting ring 1042 on the linkage plate 1011, so that one end of the positioning column 101 abuts against the side wall of the cross beam, the alignment of the contact seat body 4 is completed, and the locking column 105 is automatically locked when the rotation of the locking column 105 is stopped, so that the self-rotation of the adjusting disc 104 is avoided, and the positioning of the adjusting ring 1042 on the positioning column 101 is completed.

[0052] The above is only the preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement, improvement of the technical solutions described in the above embodiments, belongs to the protection scope of the present application.

Claims

1. A circuit breaker contact seat alignment fixture, comprising positioning components (1) symmetrically arranged on the inner side of the upper end of the contact seat body (4) and pressure plates (2) symmetrically pressed onto both sides of the top surface of the contact seat body (4), characterized in that: The positioning component (1) includes a positioning post (101), a limiting plate (102), a connecting plate (103), an adjusting plate (104), and a locking post (105). The two positioning posts (101) are arranged horizontally symmetrically, and both positioning posts (101) are slidably sleeved on the limiting plate (102). One end of the two positioning posts (101) is connected to the same linkage plate (1011). A connecting plate (103) is provided on the other side of the linkage plate (1011) with the limiting plate (102). An adjusting plate (104) is provided below the connecting plate (103). An adjusting ring (1042) is fixed on the outer wall of the adjusting plate (104), and the adjusting ring (1042) is arranged to gradually increase or decrease in diameter along the same clockwise direction. The middle part of the adjusting plate (104) is slidably sleeved with a locking pin (105). The side wall of the locking pin (105) is symmetrically provided with a first limiting groove (1051) along the axial direction. At the same time, the adjusting plate (104) is provided with a first limiting strip (1041) for clearance fit in the first limiting groove (1051). The connecting plate (103) has a first protrusion (1032) and a second protrusion (1033) integrally formed on the middle of both sides. The second protrusion (1033) is provided with a threaded through hole (1034), and the upper outer side of the locking post (105) is provided with an external thread (1052) that is screwed into the threaded through hole (1034). An adjusting handle (1053) is fixed on the top surface of the locking post (105). A connecting post (1031) is fixedly provided on the top surface of the first protrusion (1032), and a connecting piece (204) is integrally formed on the upper side wall of one end of the pressure plate (2) and fixedly connected to the upper end of the connecting post (1031).

2. The circuit breaker contact seat alignment fixture as described in claim 1, characterized in that: The adjustment plate (104) has L-shaped connecting rods (1021) symmetrically arranged on both sides below it, and the two ends of the L-shaped connecting rods (1021) are respectively connected to the limiting plate (102) and the connecting plate (103).

3. The circuit breaker contact seat alignment fixture as described in claim 1, characterized in that: The positioning post (101) has a second limiting strip (1012) symmetrically fixed on its outer side wall along the axial direction, and the limiting plate (102) has a second limiting groove (1022) for clearance fit with the second limiting strip (1012).

4. The circuit breaker contact seat alignment fixture as described in claim 3, characterized in that: Two guide strips (1013) are fixed on one side wall of the linkage plate (1011); the adjustment plate (104) is limited between the two guide strips (1013).

5. The circuit breaker contact seat alignment fixture as described in any one of claims 2-4, characterized in that: The pressure plate (2) is fixedly provided with a movable rod (201) on the bottom surface of one end of the contact seat body (4) on the outside. The lower ends of the two movable rods (201) are fixedly connected to the two ends of the same U-shaped plate (202). The movable rod (201) is slidably sleeved on the positioning block (301), and the bottom surface of the positioning block (301) is fixedly connected to the base (3) through the support rod (303).

6. The circuit breaker contact seat alignment fixture as described in claim 5, characterized in that: The U-shaped plate (202) is slidably fitted with a locking bolt (203) in the middle, and the base (3) has a threaded blind hole (304) on its top surface for the lower end of the locking bolt (203) to be helically engaged.

7. The circuit breaker contact seat alignment fixture as described in claim 6, characterized in that: Mounting holes (302) are provided at the four corners of the base (3).

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