Armature screw assembly fixture and assembly method

Abstract

The present invention discloses an armature screw assembly fixture, which is used to install a stop screw and an adjusting screw on an armature assembly, and includes a base assembly, a reciprocating drive, a fixed block assembly, a lifting drive, a pressure plate assembly, a lower pressure block, and a screwdriver assembly. The fixed block assembly includes a main body, and the main body is provided with a plurality of mounting holes. Each mounting hole is provided with a bottom tightening screw, a spring, and a push rod. The adjusting screw is placed in the mounting hole and abuts against the push rod. The armature assembly cover is provided on the fixed block assembly, and the lifting drive operates to press the pressure plate assembly onto the fixed block assembly. The reciprocating drive is used to control the position of the fixed block assembly, and the lifting drive is used to control the position of the pressure plate assembly. The screws are installed by the cooperation of the reciprocating drive, the fixed block assembly, the lifting drive, and the pressure plate assembly. The sequential action of the mechanical structure is cleverly used to form a logical linkage, and no external electrical control equipment is required, thereby solving the problem of inconvenient assembly.

Description

Technical Field

[0001] The invention relates to the field of fixtures, and in particular to an armature screw assembly fixture and an assembly method. Background Art

[0002] At present, in the magnetic release system of molded case circuit breakers, the armature component needs to be equipped with an adjusting screw and a stop screw. The stop screw is a full-thread screw with a conical head and a slotted tail. This type of screw is relatively easy to install. The head is aligned with the thread and can be assembled with an electric screwdriver.

[0003] However, the existing assembly of the armature component has the following defects:

[0004] The difficulty in assembling the armature parts on the market lies in the following: the assembly of the adjusting screw. The head of the adjusting screw is a platform step without threads, and the tail is a slot. First of all, the head cannot pass through the threads, so it is not possible to align the head with the threaded hole and screw the screw directly in as in normal operation. The screw must be held manually and screwed in from the back of the armature with the tail end of the screw. Since there is a bracket blocking the back of the armature, the operating space is very narrow, assembly is difficult, and production efficiency is low. Moreover, forcibly screwing in the screw when the tail end of the screw is not perpendicular to the thread will cause damage to the thread, and even employees may not assemble it properly, which poses quality risks and increases the workload of quality inspection. Summary of the invention

[0005] In order to overcome the deficiencies of the prior art, one of the objectives of the present invention is to provide an armature screw assembly fixture and an assembly method, which can solve the problem of inconvenient assembly.

[0006] One of the purposes of the present invention is achieved by the following technical solution:

[0007] An armature screw assembly fixture is used to install a stop screw and an adjusting screw on an armature assembly, comprising a base assembly, a reciprocating drive, a fixed block assembly, a lifting drive, a pressure plate assembly, a lower pressure block, and a screwdriver assembly. The fixed block assembly comprises a main body, the main body is provided with a plurality of mounting holes, each mounting hole is provided with a bottom tightening screw, a spring, and a push rod, the bottom tightening screw is screwed to the lowermost end of the mounting hole, and the two ends of the spring respectively abut against the bottom tightening screw and the push rod; the reciprocating drive and the lifting drive The components are respectively installed on the upper and lower sides of the base assembly, the reciprocating drive component is fixedly connected to the fixed block assembly and drives the fixed block assembly to move along the upper surface of the base assembly, the lifting drive component is fixedly connected to the pressure plate assembly and drives the pressure plate assembly to move up and down, a positioning sleeve corresponding to the mounting hole is provided on the pressure plate assembly, an adjusting screw is placed in the mounting hole and abuts against the push rod, the armature assembly cover is provided on the fixed block assembly, and the lifting drive component operates to press the pressure plate assembly onto the fixed block assembly.

[0008] Furthermore, the armature screw assembly fixture also includes a first stroke valve and a shift lever for controlling the action of the lifting drive component. The first stroke valve is fixed to the base assembly, and the shift lever is fixed to the fixed block assembly.

[0009] Furthermore, the gear lever is L-shaped, the base assembly is provided with a strip-shaped hole, and the gear lever is slidably installed in the strip-shaped hole.

[0010] Furthermore, a downward pressing connecting shaft and a downward pressing block connected to the downward pressing connecting shaft are arranged on the lower side of the pressing plate assembly.

[0011] Furthermore, the armature screw assembly fixture also includes a second stroke valve and an adjusting screw for controlling the action of the reciprocating drive member. The second stroke valve is fixed to the base assembly, and the adjusting screw is fixed to the lower pressing block.

[0012] Furthermore, the base assembly is provided with a through hole, the through hole is provided with a guide sleeve, and the press-down connecting shaft passes through the guide sleeve.

[0013] Furthermore, the armature screw assembly fixture also includes a manual valve for controlling a driving member, and the manual valve is mounted on the base assembly.

[0014] Furthermore, the mounting hole is stepped.

[0015] Furthermore, the base assembly includes a bottom plate and feet arranged at the bottom of the bottom plate.

[0016] An armature screw assembly method comprises the following steps:

[0017] Install the fixture, put in the adjusting screw, put in the armature, press in the manual valve button, retract the fixed block assembly, press down the pressure plate assembly, put in the stop screw, screw the stop screw in place with an electric screwdriver, screw the adjusting screw in place with an electric screwdriver in reverse, pull out the manual valve button, push out the fixed block assembly, take out the assembled parts, and put in the next part.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The main body is provided with a plurality of mounting holes, each mounting hole is provided with a bottom tightening screw, a spring, and a push rod, the bottom tightening screw is screwed on the lowermost end of the mounting hole, and the two ends of the spring respectively abut against the bottom tightening screw and the push rod; the reciprocating drive member and the lifting drive member are respectively installed on the upper and lower sides of the base assembly, the reciprocating drive member is fixedly connected to the fixed block assembly and drives the fixed block assembly to move along the upper surface of the base assembly, the lifting drive member is fixedly connected to the pressure plate assembly and drives the pressure plate assembly to move up and down, the pressure plate assembly is provided with a positioning sleeve corresponding to the mounting hole, the adjusting screw is placed in the mounting hole and abuts against the push rod, the armature assembly cover is arranged on the fixed block assembly, and the lifting drive member operates to press the pressure plate assembly onto the fixed block assembly. A reciprocating drive is used to control the position of the fixed block assembly, a lifting drive is used to control the position of the pressure plate assembly, and the reciprocating drive, fixed block assembly, lifting drive, and pressure plate assembly are coordinated to install the screws. The sequential action of the mechanical structure is cleverly used to form a logical linkage, eliminating the need for external electrical control equipment, thus solving the problem of inconvenient assembly.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following specifically cites a preferred embodiment and describes it in detail with the accompanying drawings as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional diagram of a preferred embodiment of the armature screw assembly fixture of the present invention;

[0022] Figure 2 for Figure 1 A front view of the armature screw assembly fixture shown;

[0023] Figure 3 for Figure 1 A top view of the armature screw assembly fixture shown;

[0024] Figure 4 for Figure 1 A cross-sectional view of the armature screw assembly fixture shown;

[0025] Figure 5 for Figure 1 A three-dimensional view of a fixed block assembly in the armature screw assembly fixture shown;

[0026] Figure 6 for Figure 1 A three-dimensional view of a pressure plate assembly in the armature screw assembly fixture shown;

[0027] Figure 7 for Figure 1 A perspective view of a screwdriver assembly in the armature screw assembly fixture;

[0028] Figure 8 for Figure 1 A perspective view of a shift lever in the armature screw assembly fixture shown;

[0029] Fig. 9 A three-dimensional view of the armature screw assembly fixture in its initial state;

[0030] Fig.10 A three-dimensional view of the armature screw assembly fixture in a pressed state;

[0031] Fig.11 Flow chart of the armature screw assembly method.

[0032] In the figure: 10, base assembly; 11, bottom plate; 12, ground anchor; 30, reciprocating drive member; 40, manual valve; 50, fixed block assembly; 51, main body; 511, mounting hole; 52, bottom tightening screw; 53, spring; 54, push rod; 60, lifting drive member; 70, pressure plate assembly; 71, downward pressure connecting shaft; 72, positioning sleeve; 80, downward pressure block; 81, first stroke valve; 82, gear lever; 91, second stroke valve; 92, adjusting screw; 100, armature assembly; 101, stop screw; 102, adjusting screw; 200, screwdriver assembly. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0034] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] See also Figure 1-11 , an armature screw assembly fixture, used for installing a stop screw 101 and an adjusting screw 102 on an armature assembly 100, comprising a base assembly 10, a reciprocating drive member 30, a fixed block assembly 50, a lifting drive member 60, a pressure plate assembly 70, a lower pressure block 80, and a screwdriver assembly 200, wherein the fixed block assembly 50 comprises a main body 51, wherein the main body 51 is provided with a plurality of mounting holes 511, each mounting hole 511 is provided with a bottom tightening screw 52, ​​a spring 53, and a push rod 54, wherein the bottom tightening screw 52 is screwed to the lowermost end of the mounting hole 511, and the two ends of the spring 53 are respectively in contact with the bottom tightening screw 52 and the push rod 54; the reciprocating drive member 30 and The lifting drive component 60 is respectively installed on the upper and lower sides of the base assembly 10, the reciprocating drive component 30 is fixedly connected to the fixed block assembly 50 and drives the fixed block assembly 50 to move along the upper surface of the base assembly 10, the lifting drive component 60 is fixedly connected to the pressure plate assembly 70 and drives the pressure plate assembly 70 to move up and down, and a positioning sleeve 72 corresponding to the mounting hole 511 is provided on the pressure plate assembly 70, the adjusting screw 102 is placed in the mounting hole 511 and abuts against the push rod 54, the armature assembly 100 is covered on the fixed block assembly 50, and the lifting drive component 60 operates to press the pressure plate assembly 70 onto the fixed block assembly 50. The reciprocating drive member 30 is used to control the position of the fixed block assembly 50, and the lifting drive member 60 is used to control the position of the pressure plate assembly 70. The reciprocating drive member 30, the fixed block assembly 50, the lifting drive member 60, and the pressure plate assembly 70 are used in coordination to install the screws. The sequential action of the mechanical structure is cleverly used to form a logical linkage, and no external electrical control equipment is required, thus solving the problem of inconvenient assembly.

[0037] Specifically, in the actual operation process, the entire fixture is ready, and the various parts to be assembled are ready. First, put 4 adjusting screws into the fixed plate, and then put in 4 armatures. Press the manual reversing valve, the fixed plate retreats, the block presses on the trigger point of the travel limit valve, the travel reversing valve acts, the lifting cylinder presses down, the pressure plate presses the parts, and the adjusting screws hold the threaded holes of the armature. At this time, put the stop screws in the other 4 holes respectively, screw them in with an electric screwdriver in the forward direction, and then screw the adjusting screws out with an electric screwdriver in the reverse direction. Pull out the manual reversing valve, the lifting cylinder lifts, drives the travel screw to press the travel limit valve, the travel reversing valve acts, the reciprocating cylinder is pushed out, the fixed plate is pushed out, and the assembled armature parts are taken out. Check the product, put it in the turnover box, load the parts again, repeat the above operations, and an assembly cycle is completed. In this process, employees only need to put the parts into the fixture, and the rest of the operations are controlled by the mechanical structure interconnection, without redundant operations, and no electrical interlocking is required. It is safe and fast, and the quality and efficiency have been greatly improved.

[0038] Specifically, the screwdriver assembly 200 is a non-standard assembly with a combined screwdriver design, consisting of two parts. The tail end is the tail of a standard screwdriver and can be connected to an electric gun. The head is processed by a push rod and can be concentric in the guide sleeve only through laser welding. The stepped design ensures strength at the root, and the slender end is convenient for introduction into the slot.

[0039] Preferably, the armature screw assembly fixture further includes a first stroke valve 81 and a shift rod 82 for controlling the action of the lifting drive member 60, wherein the first stroke valve 81 is fixed to the base assembly 10, and the shift rod 82 is fixed to the fixed block assembly 50. The purpose of providing the first stroke valve 81 is to control the operation of the lifting drive member 60, and when the first stroke valve 81 contacts the shift rod 82, the lifting drive member 60 is controlled to be pressed down.

[0040] Preferably, the lever 82 is L-shaped, the base assembly 10 is provided with a strip hole, and the lever 82 is slidably mounted in the strip hole. The lower side of the pressing plate assembly 70 is provided with a pressing connecting shaft 71 and a pressing block 80 connected to the pressing connecting shaft 71 .

[0041] Preferably, the armature screw assembly fixture further includes a second stroke valve 91 and an adjusting screw 92 for controlling the action of the reciprocating drive member 30, wherein the second stroke valve 91 is fixed to the base assembly 10, and the adjusting screw 92 is fixed to the lower pressing block 80. The purpose of providing the second stroke valve 91 is to control the operation of the reciprocating drive member 30, and when the second stroke valve 91 contacts the adjusting screw 92, the reciprocating drive member 30 is controlled to be pushed out.

[0042] Preferably, the base assembly 10 is provided with a through hole, the through hole is provided with a guide sleeve, and the pressing connecting shaft 71 passes through the guide sleeve. The armature screw assembly fixture also includes a manual valve 40 for controlling the driving member, and the manual valve 40 is installed on the base assembly 10. The mounting hole 511 is stepped. The base assembly 10 includes a base plate 11 and a foot 12 arranged at the lower part of the base plate 11. The entire device has a compact structure, a novel structure, a clever design, strong applicability, and is easy to promote.

[0043] An armature screw assembly method comprises the following steps:

[0044] Install the fixture, put in the adjusting screw, put in the armature, press in the manual valve button, retract the fixed block assembly, press down the pressure plate assembly, put in the stop screw, screw the stop screw in place with an electric screwdriver, screw the adjusting screw in place with an electric screwdriver in reverse, pull out the manual valve button, push out the fixed block assembly, take out the assembled parts, and put in the next part.

[0045] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An armature screw assembly fixture, used for installing a stop screw and an adjusting screw on an armature assembly, comprising a base assembly, a reciprocating drive member, a fixed block assembly, a lifting drive member, a pressure plate assembly, a lower pressure block, and a screwdriver assembly, characterized in that: The fixing block assembly comprises a main body, the main body is provided with a plurality of mounting holes, each mounting hole is provided with a bottom tightening screw, a spring, and a push rod, the bottom tightening screw is screwed to the lowermost end of the mounting hole, and the two ends of the spring are respectively against the bottom tightening screw and the push rod; The reciprocating drive member and the lifting drive member are respectively installed on the upper and lower sides of the base assembly, the reciprocating drive member is fixedly connected to the fixed block assembly and drives the fixed block assembly to move along the upper surface of the base assembly, the lifting drive member is fixedly connected to the pressure plate assembly and drives the pressure plate assembly to move up and down, a positioning sleeve corresponding to the mounting hole is provided on the pressure plate assembly, an adjusting screw is placed in the mounting hole and abuts against the push rod, an armature assembly cover is provided on the fixed block assembly, and the lifting drive member operates to press the pressure plate assembly onto the fixed block assembly; the armature screw assembly fixture also includes a first stroke valve and a shift rod for controlling the action of the lifting drive member, the first stroke valve is fixed to the base assembly, and the shift rod is fixed to the fixed block assembly; the base assembly includes a bottom plate and a foot provided at the lower part of the bottom plate.

2. The armature screw assembly fixture according to claim 1, characterized in that: The gear lever is L-shaped, the base assembly is provided with a strip hole, and the gear lever is slidably installed in the strip hole.

3. The armature screw assembly fixture according to claim 1, characterized in that: A pressing connecting shaft and a pressing block connected to the pressing connecting shaft are arranged on the lower side of the pressing plate assembly.

4. The armature screw assembly fixture according to claim 3, characterized in that: The armature screw assembly fixture also includes a second stroke valve and an adjusting screw for controlling the action of the reciprocating drive member. The second stroke valve is fixed to the base assembly, and the adjusting screw is fixed to the lower pressing block.

5. The armature screw assembly fixture according to claim 3, characterized in that: The base assembly is provided with a through hole, the through hole is provided with a guide sleeve, and the press-down connecting shaft passes through the guide sleeve.

6. The armature screw assembly fixture according to claim 1, characterized in that: The armature screw assembly fixture also includes a manual valve for controlling a driving member, and the manual valve is mounted on the base assembly.

7. The armature screw assembly fixture according to claim 1, characterized in that: The mounting hole is in a stepped shape.

8. An armature screw assembly method applied to the armature screw assembly fixture according to any one of claims 1 to 7, characterized in that: The following steps are involved: Install the fixture, put in the adjusting screw, put in the armature, press in the manual valve button, retract the fixed block assembly, press down the pressure plate assembly, put in the stop screw, screw the stop screw in place with an electric screwdriver, screw the adjusting screw in place with an electric screwdriver in reverse, pull out the manual valve button, push out the fixed block assembly, take out the assembled parts, and put in the next part.

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