CN215933502U

CN215933502U - Molded case circuit breaker mechanism spring assembly device

Info

Publication number: CN215933502U
Application number: CN202121996868.3U
Authority: CN
Inventors: 曹兵兵; 宋成爱; 邸云飞
Original assignee: Foretech Elec App Jiangsu Corp ltd
Current assignee: Foretech Elec App Jiangsu Corp ltd
Priority date: 2021-08-24
Filing date: 2021-08-24
Publication date: 2022-03-01
Anticipated expiration: 2031-08-24

Abstract

The utility model discloses a spring assembling device of a molded case circuit breaker mechanism, which comprises a base, wherein a spring fixing piece is arranged on the base, and a positioning part is formed on the spring fixing piece; the clamp mechanism is arranged on the base and comprises an extensible part and an extensible driving part, the extensible part is opposite to the positioning part of the spring fixing part and is arranged at intervals, a clamping cavity is formed between the extensible part and the positioning part, the extensible part has a first state of extending towards the direction of the positioning part to enable the extension spring to be abutted against the positioning part and clamped in the clamping cavity, and a second state of retracting towards the direction far away from the positioning part to enable the extension spring in the clamping cavity to be loosened; the punching component is suitable for being installed on a telescopic rod of the punch press and suspended above the clamping cavity, and in the first state, the punching component is pressed downwards to enable the first section and the second section of the end to be assembled of the extension spring to be opened and kept in a non-tight state. The problem of adopt manual operation screwdriver to lead to inefficiency, intensity of labour are big and the uniformity is difficult to guarantee is solved.

Description

Molded case circuit breaker mechanism spring assembly device

Technical Field

The utility model relates to low-voltage component assembly equipment, in particular to a spring assembly device of a molded case circuit breaker mechanism.

Background

Molded case circuit breakers are one of the most commonly used low voltage components. In a low-voltage distribution system, the low-voltage distribution system is commonly used as a terminal switch or a branch switch, and is widely applied due to compact structure, moderate price and stable and reliable performance.

A spring of the conventional molded case circuit breaker mechanism includes an extension spring and two different supporting members assembled at both ends of the extension spring. The existing assembly method adopts manual operation, when the assembly is carried out, a straight screwdriver is inserted into the first pitch at one end of the extension spring to ensure that the first section and the adjacent second section are kept in a non-tight state, then the support is put into the assembly, and the operation method of the support at the other end is the same as the above. The method has the disadvantages of time and labor waste, low efficiency, increased labor intensity and difficult guarantee of consistency.

SUMMERY OF THE UTILITY MODEL

In view of the above technical problems, the present invention aims to: the spring assembling device for the molded case circuit breaker mechanism is simple in structure and convenient to operate, can effectively improve the installation efficiency and reduce the labor intensity of workers, and does not influence the overall performance of the circuit breaker due to the fact that the spring torque caused by human factors is not changed.

The technical scheme of the utility model is as follows:

the utility model relates to a spring assembling device of a molded case circuit breaker mechanism, which comprises:

the spring fixing piece is arranged on the base and is provided with a positioning part;

the clamp mechanism is arranged on the base and comprises an extensible part and an extensible driving part, the extensible part is opposite to the positioning part of the spring fixing part and is arranged at intervals, a clamping cavity with adjustable size is formed between the extensible part and the positioning part, and the extensible part is provided with a first state that the extensible part extends towards the direction of the positioning part to move so as to enable the extension spring to be abutted against the positioning part and clamped in the clamping cavity and a second state that the extensible part retracts towards the direction away from the positioning part to move so as to loosen the extension spring in the clamping cavity;

and the stamping assembly is suitable for being installed on a telescopic rod of the punch press and suspended above the clamping cavity, and when the stamping assembly is in the first state, the stamping assembly is pressed downwards so that the first section and the second section of the end to be assembled of the extension spring are opened and kept in a non-tight state.

Optionally, the positioning portion is a V-shaped positioning groove.

Optionally, the clamp mechanism is mounted on a fixed block arranged on the base, and the fixed block is opposite to the spring fixing member and arranged at an interval;

the telescopic part is movably arranged on the fixed block.

Optionally, the clamp mechanism is a push-pull clamp mechanism, the telescopic driving piece is a handle, and the telescopic piece is a push rod;

a first connecting part and a second connecting part are formed at one end of the handle facing the fixed block, the first connecting part is rotatably connected with the telescopic piece through a rotating shaft, the second connecting part is connected with the fixed block through a connecting rod and can be switched between abutting and releasing with the fixed plate and abutting with the fixed plate, and an abutting part is formed on the second connecting part;

when the handle is in a first state, the handle rotates around the rotating shaft to be parallel to the stretching direction of the telescopic piece, the telescopic piece extends towards the positioning part and moves, and the abutting part is loosened from abutting with the fixing plate; when the handle is in the second state, the handle rotates around the rotating shaft to a position perpendicular to the stretching direction of the telescopic piece, the telescopic piece is far away from the positioning part to retract and move, and the abutting part abuts against the fixed plate.

Optionally, a guide piece is arranged on the fixed block, and a guide hole for the telescopic piece to penetrate and fix is formed in the guide piece.

Optionally, the telescopic part comprises a push rod body and a fixing part arranged at one end of the push rod body facing the positioning part;

the fixing part is opposite to the positioning part and clamped on the extension spring together with the positioning part in the first state.

Optionally, the fixing part is in threaded connection with the push rod body or the fixing part and the push rod body are of an integral structure.

Optionally, the fixing part is a non-metal part.

Optionally, a plurality of mounting grooves are formed in the base, and the base is suitable for being arranged in the mounting grooves in a penetrating mode through fasteners and fixedly connected with the punch.

Optionally, at least one side of the base located in the clamping cavity is provided with an operation slot suitable for assembling the support member on the extension spring.

Compared with the prior art, the utility model has the advantages that:

the spring assembling device for the molded case circuit breaker mechanism solves the problems of low efficiency, high labor intensity and difficulty in ensuring consistency caused by the adoption of a manual screwdriver in the prior art. The assembling device is simple in structure and convenient to operate, can effectively improve the installation efficiency and reduce the labor intensity of workers, and the overall performance of the circuit breaker is not affected due to the fact that the spring torque caused by human factors is not changed.

Drawings

The utility model is further described with reference to the following figures and examples:

fig. 1 is a schematic structural view of a push-pull type clamp mechanism of a molded case circuit breaker mechanism spring assembly apparatus according to an embodiment of the present invention in a second state;

fig. 2 is a schematic structural view of a push-pull type clamp mechanism of the molded case circuit breaker mechanism spring assembly apparatus according to the embodiment of the present invention in a first state;

fig. 3 is a schematic structural view of an extension spring and a support member of a molded case circuit breaker mechanism spring according to an embodiment of the present invention when not assembled;

fig. 4 is a schematic structural view of an assembled extension spring and a support member of a molded case circuit breaker mechanism spring according to an embodiment of the present invention.

Wherein: 1. a base; 11. mounting grooves; 12. an operation slot; 2. a spring mount; 3. a fixed block; 4. a push-pull clamp mechanism; 41. a push rod; 410. a fixed part; 42. a handle; 421. a first connection portion; 422. a second connecting portion; 423. an abutting portion; 424. a connecting rod; 43. a nut; 5. a stamping assembly; 51. a handle; 52. a punch; 6. a molded case circuit breaker mechanism spring; 61. an extension spring; 62. a first support member; 63. a second support member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Example (b):

referring to fig. 1 to 4, a molded case circuit breaker mechanism spring assembling apparatus according to an embodiment of the present invention includes a base 1, a spring fixing member 2, a clamping mechanism, and a punching assembly 5. The spring fixing piece 2 is arranged on the base 1, and the clamp mechanism is movably arranged on the base 1 and is opposite to and spaced from the spring fixing piece 2. The punch assembly 5 is mounted on a punch press (not shown) and suspended above a clamping chamber (not shown).

As shown in fig. 1 and 2, the base 1 includes a square base 1 body, a spring fixing member 2 disposed on an upper end surface of the base 1, and a fixing block 3 for mounting a push-pull type clamp mechanism 4. In order to facilitate the mounting of the assembly device to the punch press integrally by means of fasteners such as bolts or the like, mounting slots 11 are provided in the base 1. As shown in fig. 1 and 2, the number of the mounting grooves 11 is two, and the two mounting grooves are respectively formed on the base 1 and located on the upper side and the lower side of the spring fixing member 2. Optionally, the mounting groove 11 is a long strip-shaped through hole.

In order to facilitate the pressing down of the punch assembly 5 in the first state, when the first section and the second section of the end to be assembled of the extension spring 61 are opened and kept in a non-tight state, the support member is assembled at the end to be assembled. At least one side of the base 1, which is positioned in the clamping cavity, is provided with an operation groove 12. In the present embodiment, it is preferable to provide the operation slot 12 at one side of the clamping chamber, that is, the lower side as shown in fig. 1 and 2. When the assembly device is used, the first supporting piece 62 is assembled at one end of the extension spring 61, the extension spring 61 is loosened after the assembly, the unassembled end of the extension spring 61 faces the direction of the operation groove 12, and then the clamping and stamping assembly 5 is pressed downwards to assemble the second supporting piece 63. As an alternative embodiment, the upper and lower sides of the clamping cavity may be provided with the operation slots 12, so that the length of the base 1 is increased, and during installation, the direction of the extension spring 61 is adjusted by moving the stamping assembly 5 without loosening the push-pull type clamp mechanism 4.

The spring fixing member 2 is specifically formed with a positioning portion on the left end face of the spring fixing member 2 as shown in fig. 2, and the fixing block 3 is installed on the left side of the spring fixing member 2 opposite to the positioning portion and arranged at intervals. As shown in fig. 1, the positioning portion is a V-shaped positioning groove with an opening facing the left side. The extension spring 61 can be easily and securely held.

The clamp mechanism comprises an extensible part and an extensible driving part, the extensible part is movably arranged on the fixed block 3, and a clamping cavity with adjustable size is formed between the extensible part and the positioning part. The telescopic piece can do telescopic motion towards the direction of the positioning part so as to enable the extension spring 61 of the molded case circuit breaker mechanism spring 6 to abut against the positioning part and be clamped in the clamping cavity in a first state, and can do retracting motion towards the direction far away from the positioning part so as to loosen the extension spring 61 in the clamping cavity in a second state. As shown in fig. 1 and 2, the clamp mechanism of the present embodiment is a push-pull clamp mechanism 4, the telescopic driving member is a handle 42, and the telescopic member is a push rod 41. The left end of handle 42 is the free end, and the right-hand member is connected with push rod 41 and fixed block 3, and is specific, and handle 42's right-hand member front side is formed with first connecting portion 421 and specifically is two engaging lugs, and two engaging lugs rotate through the left end of pivot with push rod 41 to be connected, and handle 42's right-hand member rear side is formed with second connecting portion 422, and second connecting portion 422 passes through the connecting plate to be connected with fixed block 3, and is specific, the both ends of connecting plate respectively with second connecting portion 422 and fixed plate between rotate and be connected. The right end of the second connecting portion 422 forms an abutting portion 423, for example, the abutting portion 423 may be an arc abutting portion 423, when in the first state, the handle 42 rotates around the rotating shaft to be parallel to the extending and retracting direction of the telescopic member, the telescopic member extends and moves towards the positioning portion, and the right end of the second connecting portion 422, that is, the abutting portion 423, is released from abutting with the fixing plate. In the second state, the handle 42 is rotated about the rotary shaft to a position perpendicular to the extending and retracting direction of the extensible member, the extensible member is retracted and moved away from the positioning portion, and the abutting portion 423 abuts on the fixed plate. As an alternative embodiment, the push-pull type clamp mechanism 4 of the present embodiment may also be other conventional push-pull type clamp mechanisms 4 in the art, and the specific structure is not described and limited in detail herein. As an alternative embodiment, the clamping mechanism may also be an electric clamping mechanism, such as a cylinder driven telescopic member, and the specific structure is not described and limited in detail herein.

The push rod 41 includes a body of the push rod 41 and a fixing portion 410 connected to the body of the push rod 41 toward the positioning portion, i.e., the right end as viewed in fig. 1, the diameter of the fixing portion 410 being larger than the body of the push rod 41. In the first state, the fixing portion 410 and the positioning portion are clamped together by the extension spring 61. Optionally, the right end of the body of the push rod 41 is provided with threads, and correspondingly, the left end of the fixing portion 410 is provided with threads matched with the threads of the body of the push rod 41, that is, the body of the push rod 41 and the fixing portion 410 are fixed by thread matching. The fixing portion 410 may be made of a metal material consistent with the body of the push rod 41, or may be made of a material inconsistent with the body of the push rod 41, such as a non-metal material, for example, rubber. In another alternative embodiment, the body of the push rod 41 and the fixing portion 410 may be a unitary structure.

In order to facilitate the telescopic movement of the telescopic member, a guide block, preferably a nut 43 in this embodiment, is disposed on the fixed block 3 specifically on the right side of the fixed block 3 as shown in fig. 1 and 2, a guide hole is formed in the guide block, and the telescopic member is inserted into the guide hole.

As for the punching assembly 5, as shown in fig. 1 and 2, it includes a handle 51 and a punch 52, the handle 51 is connected to the telescopic rod of the punching machine, and the punch 52 is installed at the bottom of the handle 51 and suspended above the clamping cavity, and it should be noted here that the punch 52 is not installed directly above the clamping cavity, but is installed in front of or behind the clamping cavity, so that the punch 52 can be inserted into the first pitch of the end of the tension spring 61, i.e. between the first section and the next second section, so that the first section and the second section are in a non-parallel state, thereby installing the direction support. Preferably, the telescopic rod of the punch press can move in the front-back and left-right directions as shown in fig. 1 and 2. The specific structure is not described or limited in detail herein.

The working process of the assembling device of the embodiment includes firstly, placing the tension spring 61 to be assembled in the clamping cavity, fixing the tension spring in the clamping cavity by extending and moving the telescopic piece towards the spring fixing piece, then pressing and inserting the punch 52 into the first pitch of the end to be assembled, enabling the first section and the second section to be in a non-tight state, then installing the first supporting piece 62 through the operation groove 12, loosening the clamping mechanism after the installation is completed, changing the direction of the tension spring to be assembled, enabling one end of the support to be not assembled to be located above the operation groove 12, and then repeating the steps to complete the assembly of the second supporting piece 63. The problem of adopt manual operation screwdriver to lead to inefficiency, intensity of labour is big and the uniformity is difficult to guarantee among the prior art is solved. The assembling device is simple in structure and convenient to operate, can effectively improve the installation efficiency and reduce the labor intensity of workers, and the overall performance of the circuit breaker is not affected due to the fact that the spring torque caused by human factors is not changed.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. The utility model provides a moulded case circuit breaker mechanism spring assembly quality which characterized in that includes:

the spring fixing piece (2) is arranged on the base (1), and a positioning part is formed on the spring fixing piece (2);

the clamp mechanism is arranged on the base (1) and comprises an extensible part and an extensible driving part, the extensible part is opposite to the positioning part of the spring fixing part (2) and is arranged at intervals, a clamping cavity with adjustable size is formed between the extensible part and the positioning part, and the extensible part is provided with a first state that the extensible part extends towards the direction of the positioning part to move so as to enable the extension spring (61) to be abutted against the positioning part and clamped in the clamping cavity and a second state that the extensible part retracts towards the direction away from the positioning part to move so as to loosen the extension spring (61) in the clamping cavity;

the punching assembly (5) is suitable for being installed on a telescopic rod of a punch press and suspended above the clamping cavity, and in the first state, the punching assembly (5) is pressed downwards to enable the first section and the second section of the end to be assembled of the extension spring (61) to be opened and kept in a non-tight state.

2. The molded case circuit breaker mechanism spring assembly apparatus of claim 1 wherein the positioning portion is a V-shaped positioning groove.

3. A molded case circuit breaker mechanism spring assembly apparatus as claimed in claim 1 or 2, wherein the clamp mechanism is mounted on a fixing block (3) provided on the base (1), the fixing block (3) being provided opposite to and spaced apart from the spring fixing member (2);

the telescopic piece is movably arranged on the fixed block (3).

4. A molded case circuit breaker mechanism spring assembly apparatus as defined in claim 3 wherein the clamp mechanism is a push-pull clamp mechanism (4), the telescopic drive is a handle (42), and the telescopic member is a push rod (41);

a first connecting part (421) and a second connecting part (422) are formed at one end of the handle (42) facing the fixed block (3), the first connecting part (421) is rotatably connected with the telescopic piece through a rotating shaft, the second connecting part (422) is connected with the fixed block (3) through a connecting rod (424) and can be switched between abutting and releasing with the fixed plate, and an abutting part (423) is formed on the second connecting part (422);

in a first state, the handle (42) rotates around the rotating shaft to be parallel to the telescopic direction of the telescopic piece, the telescopic piece extends towards the positioning part and moves, and the abutting part (423) is released from abutting with the fixed plate; in the second state, the handle (42) rotates around the rotating shaft to a position perpendicular to the extending and retracting direction of the extensible member, the extensible member retracts away from the positioning part and moves, and the abutting part (423) abuts against the fixed plate.

5. The molded case circuit breaker mechanism spring assembly apparatus as claimed in claim 3, wherein the fixed block (3) is provided with a guide member, and the guide member is provided with a guide hole for the telescopic member to be inserted and fixed.

6. The molded case circuit breaker mechanism spring assembly apparatus of claim 3 wherein the extension member comprises a push rod (41) body and a fixing portion (410) provided on an end of the push rod (41) body facing the positioning portion;

the fixing part (410) is opposite to the positioning part and clamped on the extension spring (61) together with the positioning part in the first state.

7. The molded case circuit breaker mechanism spring mounting apparatus of claim 6, wherein the fixing portion (410) is screw-coupled to the push rod (41) body or the fixing portion (410) is an integral structure with the push rod (41) body.

8. The molded case circuit breaker mechanism spring mounting apparatus of claim 6 wherein the fixed portion (410) is a non-metallic member.

9. The molded case circuit breaker mechanism spring assembly apparatus of claim 1, wherein the base (1) has a plurality of mounting slots (11), and the base (1) is adapted to be inserted into the mounting slots (11) by fasteners to be fixedly connected to the punching machine.

10. The molded case circuit breaker mechanism spring assembling apparatus as recited in claim 1, wherein at least one side of the base (1) located at the clamping chamber is opened with an operation slot (12) adapted to assemble a holder to the extension spring (61).