Welding device for circuit breaker thermal system assembly

Abstract

The utility model relates to a circuit breaker thermal system assembly welding device. The technical problem to be solved by the utility model is to provide the circuit breaker thermal system assembly welding device. According to the technical scheme, the welding device comprises a station transmission disc, a station positioning seat assembly, a wire clamping assembly and a welding assembly, the station positioning seat assembly comprises a main seat body, a wire locking block assembly, a locking rod and a locking air cylinder, and the wire locking block assembly comprises a locking block, an anti-moving block and an anti-rotating block. A first locking block positioning groove and a second locking block positioning groove are formed in the locking block, an anti-moving block arc groove is formed in the bottom of the anti-moving block, an anti-moving tooth set is arranged in the anti-moving block arc groove, an anti-rotating block arc groove is formed in the bottom of the anti-rotating block, and an anti-rotating tooth set is arranged in the anti-rotating block arc groove. The utility model has the advantages that the anti-moving block and the anti-rotating block are matched with each other, so that when the locking block clamps the wire, the transverse displacement of the wire and the rotation of the conductor caused by the rotation of the station transmission disc can be effectively prevented.

Description

Technical Field

[0001] The utility model relates to a welding device for a thermal system component of a circuit breaker. Background Art

[0002] The circuit breaker thermal system component is an important part of the circuit breaker device, which is responsible for monitoring and responding to overheating conditions in the circuit to protect the circuit and electrical equipment from damage. Fig. 9 As shown, the circuit breaker thermal system component includes a trip assembly 71, a bimetallic strip 72, and a wire 73 connecting the trip assembly 71 and the bimetallic strip 72. We need to weld the two ends of the wire 73 to the trip assembly 71 and the bimetallic strip 72 respectively. Generally, we clamp the wire to the station transmission disk assembly through a wire clamping device, and then weld it through a wire welding device. However, in the actual welding process, it is found that the station transmission disk assembly performs station transmission by rotation and the circular structure of the wire 73 cannot accurately and firmly fix the wire 73 when not welded, so that the wire 73 can accurately fit on the trip assembly 71 and the bimetallic strip 72, so that the accuracy of welding cannot be effectively guaranteed. In addition, the clamping block on the station transmission disk assembly locks the wire 73 through a cylinder. The large impact during the locking process can easily cause the wire 73 to rotate and be damaged. Improvements and optimizations are made for this. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a welding device for a thermal system component of a circuit breaker.

[0004] The technical solution adopted by the welding device of the thermal system component of the circuit breaker of the utility model: including a station transmission disc, a station positioning seat assembly arranged on the station transmission disc at intervals around a circular arc, a wire clamping assembly for wire clamping, and a welding assembly, characterized in that the station positioning seat assembly includes a main seat body, a wire locking block assembly, a locking rod and a locking cylinder, the wire locking block assembly includes a locking block, an anti-shift block and an anti-rotation block, the locking block is provided with a first locking block positioning groove for inserting the anti-shift block and a second locking block positioning groove for inserting the anti-rotation block, the bottom of the anti-shift block is provided with an anti-shift block circular arc groove corresponding to the wire, the circular arc groove of the anti-shift block is provided with an anti-shift tooth group arranged at intervals around a circular arc and used to prevent the horizontal movement of the wire, the bottom of the anti-rotation block is provided with an anti-rotation block circular arc groove corresponding to the wire, the circular arc groove of the anti-rotation block is provided with an anti-rotation tooth group arranged at intervals around a circular arc and used to prevent the rotation of the wire;

[0005] The main seat body includes a main seat body receiving portion, a first docking block and a second docking block arranged on the main seat body receiving portion, the first docking block is provided with a release component installation groove for limiting the release component and a first clamping surface connected to the anti-displacement block, and the second docking block is provided with a bimetallic strip installation groove for limiting the bimetallic strip and a second clamping surface connected to the anti-rotation block.

[0006] The anti-shifting tooth group and the anti-rotation tooth group both include large clamping teeth and small clamping teeth that are adjacently arranged, and the cross-sections of the large clamping teeth and the small clamping teeth are both triangular.

[0007] The side portions of the anti-displacement block and the anti-rotation block are both provided with anti-motion block limiting protrusions, and the first positioning groove of the locking block and the second positioning groove of the locking block are both provided with locking block limiting recesses corresponding to the anti-motion block limiting protrusions.

[0008] The first clamping surface is provided with a lower arc groove for positioning the wire, and the diameter of the lower arc groove is smaller than the diameter of the wire.

[0009] The work station positioning seat assembly also includes a buffer spring sleeved on the locking rod, the locking rod includes a locking block docking portion fixed to the locking block and a locking block rod body, a main seat body through-hole for the locking block rod body to pass through is provided in the middle of the main seat body receiving portion, one end of the buffer spring abuts against the locking block docking portion and the other end abuts against the main seat body receiving portion.

[0010] The locking block is provided with a second locking block limiting groove corresponding to the locking block docking portion, and the main seat body receiving portion is provided with a spring limiting groove for limiting the buffer spring at the main seat body penetration hole.

[0011] The advantages of the circuit breaker thermal system component welding device of the utility model are: the anti-shift block and the anti-rotation block cooperate with each other so that the locking block can effectively prevent the lateral shift of the wire and the rotation of the conductor caused by the rotation of the work station transmission disc when clamping the wire, the clamping is stable, the clamping effect is good, and the accuracy and precision during welding are effectively guaranteed; the buffer spring can effectively reduce the impact force of the locking block on the wire when clamping, reduce the possibility of damage to the wire by the impact force, and have higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] Figure 1 It is a structural schematic diagram of a welding device for a thermal system component of a circuit breaker of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the workstation positioning seat assembly of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the wire locking block assembly of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the locking block of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the anti-shift block of the utility model;

[0018] Figure 6 It is a structural schematic diagram of the anti-rotation block of the utility model;

[0019] Figure 7 It is a structural schematic diagram of the main seat body of the utility model;

[0020] Figure 8 It is a structural schematic diagram of the locking rod of the utility model;

[0021] Fig. 9 It is a structural schematic diagram of a thermal system component of a circuit breaker of the utility model. DETAILED DESCRIPTION

[0022] like Figure 1-8As shown, the utility model relates to a welding device for a thermal system component of a circuit breaker, comprising a station transmission disc 1, a station positioning seat assembly 2 arranged on the station transmission disc 1 around an arc interval, a wire clamping assembly 3 for clamping a wire 73, and a welding assembly 4, wherein the station positioning seat assembly 2 comprises a main seat body 6, a wire locking block assembly 7, a locking rod 8 and a locking cylinder 9, the wire locking block assembly 7 comprises a locking block 11, an anti-shift block 12 and an anti-rotation block 13, the locking block 11 is provided with a first locking block positioning groove 15 for inserting the anti-shift block 12 and a second locking block positioning groove 16 for inserting the anti-rotation block 13, the bottom of the anti-shift block 12 is provided with an anti-shift block circular arc groove 18 corresponding to the wire 73, the anti-shift block circular arc groove 18 is provided with an anti-shift tooth group 19 arranged at a transverse interval and used to prevent the wire 73 from moving transversely, the bottom of the anti-rotation block 13 is provided with a locking block first positioning groove 15 for inserting the anti-shift block 12 and a locking block second positioning groove 16 for inserting the anti-rotation block 13, the anti-shift block 12 is provided with an anti-shift block circular arc groove 18 corresponding to the wire 73, the anti-shift block circular arc groove 18 is provided with an anti-shift tooth group 19 arranged at a transverse interval and used to prevent the wire 73 from moving transversely, and the anti-rotation block 13 is provided with a locking block first positioning groove 15 for inserting the anti-shift block 12 and a locking block second positioning groove 16 for inserting the anti-rotation block 13 73 corresponding to the anti-rotation block arc groove 20, the anti-rotation block arc groove 20 is provided with an anti-rotation tooth group 21 arranged around the arc interval and used to prevent the wire 73 from rotating; the main seat body 6 includes a main seat body receiving portion 23, a first docking block 24 and a second docking block 25 arranged on the main seat body receiving portion 23, the first docking block 24 is provided with a tripping component mounting groove 29 for limiting the tripping component 71 and a first clamping surface 26 connected to the anti-displacement block 12, the second docking block 25 is provided with a bimetallic strip mounting groove 27 for limiting the bimetallic strip 72 and a second clamping surface 28 connected to the anti-rotation block 13, the anti-displacement block 12 and the anti-rotation block 13 cooperate with each other so that the locking block 11 can effectively prevent the lateral displacement and conductor rotation of the wire 73 caused by the rotation of the workstation transmission disc 1 when clamping the wire 73, the clamping is stable, the clamping effect is good, and the accuracy and precision during welding are effectively guaranteed.

[0023] The anti-shifting tooth group 19 and the anti-rotation tooth group 21 both include adjacently arranged large clamping teeth 30 and small clamping teeth 31. The cross-sections of the large clamping teeth 30 and the small clamping teeth 31 are both triangular. The large and small tooth structures have a stronger wire clamping effect and higher reliability.

[0024] The side of the anti-displacement block 12 and the side of the anti-rotation block 13 are both provided with anti-motion block limiting protrusions 33, and the first positioning groove 15 of the locking block and the second positioning groove 16 of the locking block are both provided with locking block limiting recesses 34 corresponding to the anti-motion block limiting protrusions 33, so as to ensure accurate installation and positioning, and prevent looseness caused by frequent clamping, which would affect the subsequent accuracy.

[0025] The first clamping surface 26 is provided with a lower arc groove 35 for positioning the wire 73 . The diameter of the lower arc groove 35 is smaller than the diameter of the wire 73 , so as to further reduce displacement of the wire 73 after being compressed.

[0026] The work station positioning seat assembly 2 also includes a buffer spring 10 sleeved on the locking rod 8, and the locking rod 8 includes a locking block docking portion 38 and a locking block rod body 39 fixed on the locking block 11. The middle part of the main seat body receiving portion 23 is provided with a main seat body penetration hole 37 for the locking block rod body 39 to penetrate. One end of the buffer spring 10 abuts against the locking block docking portion 38 and the other end abuts against the main seat body receiving portion 23. The buffer spring 10 can effectively reduce the impact force on the wire 73 when the locking block 11 is clamped, reduce the possibility of damage to the wire 73 by the impact force, and have higher safety.

[0027] The locking block 11 is provided with a second locking block limiting groove 40 corresponding to the locking block docking portion 38, and the main seat body receiving portion 23 is provided with a spring limiting groove 41 for limiting the buffer spring 10 at the main seat body penetration hole 37, which ensures accurate positioning and more reliable operation.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A circuit breaker thermal system component welding device, comprising a station drive disc (1), a station positioning seat assembly (2) arranged on the station drive disc (1) at intervals around an arc, a wire clamping assembly (3) for clamping a wire (73), and a welding assembly (4), characterized in that: The workstation positioning seat assembly (2) comprises a main seat body (6), a wire locking block assembly (7), a locking rod (8) and a locking cylinder (9); the wire locking block assembly (7) comprises a locking block (11), an anti-displacement block (12) and an anti-rotation block (13); the locking block (11) is provided with a first locking block positioning groove (15) for inserting the anti-displacement block (12) and a second locking block positioning groove (16) for inserting the anti-rotation block (13); the bottom of the anti-displacement block (12) is provided with a locking rod (8) and a locking rod (9); the locking rod (8) comprises a locking rod ... locking rod (15) for inserting the anti-displacement block (12) and an anti-rotation block (13); the locking block (11) is provided with a locking rod (8) and a locking rod (9) for inserting the anti-rotation block (13); the locking block (11) is provided with a locking rod (15) and a locking rod (16) for inserting the anti-rotation block (13); the locking block (11) is provided with a locking rod (8) and a locking rod (9) for inserting the anti-displacement block (12); the locking block (11) is provided with a locking rod (8) and a locking rod (9) for inserting the anti-rotation block ( The anti-rotation block (13) is provided with an anti-shift block circular arc groove (18) corresponding to the conductor (73), and an anti-shift tooth group (19) is arranged at intervals in the transverse direction and used to prevent the conductor (73) from moving in the transverse direction. The anti-rotation block (13) is provided with an anti-rotation block circular arc groove (20) corresponding to the conductor (73) at the bottom, and an anti-rotation tooth group (21) is arranged at intervals in the arc direction and used to prevent the conductor (73) from rotating. The main seat body (6) comprises a main seat body receiving portion (23), a first docking block (24) and a second docking block (25) arranged on the main seat body receiving portion (23), wherein the first docking block (24) is provided with a tripping assembly mounting groove (29) for limiting the position of the tripping assembly (71) and a first clamping surface (26) corresponding to the anti-displacement block (12), and the second docking block (25) is provided with a bimetallic strip mounting groove (27) for limiting the position of the bimetallic strip (72) and a second clamping surface (28) corresponding to the anti-rotation block (13).

2. The circuit breaker thermal system component welding device according to claim 1, characterized in that: The anti-shifting tooth group (19) and the anti-rotation tooth group (21) both comprise large clamping teeth (30) and small clamping teeth (31) that are arranged adjacent to each other, and the cross-sections of the large clamping teeth (30) and the small clamping teeth (31) are both triangular.

3. The circuit breaker thermal system component welding device according to claim 1, characterized in that: The side of the anti-displacement block (12) and the side of the anti-rotation block (13) are both provided with anti-movement block limiting protrusions (33), and the first locking block positioning groove (15) and the second locking block positioning groove (16) are both provided with locking block limiting recesses (34) corresponding to the anti-movement block limiting protrusions (33).

4. The circuit breaker thermal system component welding device according to claim 1, characterized in that: The first clamping surface (26) is provided with a lower circular arc groove (35) for positioning the conductive wire (73), and the diameter of the lower circular arc groove (35) is smaller than the diameter of the conductive wire (73).

5. The circuit breaker thermal system component welding device according to claim 1, characterized in that: The workstation positioning seat assembly (2) further comprises a buffer spring (10) sleeved on the locking rod (8); the locking rod (8) comprises a locking block docking portion (38) fixed to the locking block (11) and a locking block rod body (39); a main seat body through-hole (37) for the locking block rod body (39) to pass through is provided in the middle of the main seat body receiving portion (23); one end of the buffer spring (10) abuts against the locking block docking portion (38) and the other end abuts against the main seat body receiving portion (23).

6. The circuit breaker thermal system component welding device according to claim 5, characterized in that: The locking block (11) is provided with a locking block second limiting groove (40) corresponding to the locking block docking portion (38), and the main seat body receiving portion (23) is provided with a spring limiting groove (41) for limiting the buffer spring (10) at the main seat body through hole (37).

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