Rapid positioning assembly mechanism for circuit breaker tension spring

Abstract

The invention discloses a quick positioning assembly mechanism for a tension spring of a circuit breaker, comprising a feeding mechanism and an assembly mechanism; the feeding mechanism is parallel to the assembly mechanism and is located on one side of the assembly mechanism; the feeding mechanism comprises a material shifting cylinder, a first slider, a material trough block, an elastic clamping block, and a first base; the assembly mechanism comprises a horizontal moving mechanism, a tension spring lower end mounting mechanism, and a tension spring upper end mounting mechanism. The quick positioning assembly mechanism for a tension spring of a circuit breaker of the invention has a compact structure, can automatically assemble tension springs of different specifications, has stable performance, high efficiency, is convenient and fast, reduces the defect rate, and saves a lot of manpower and material resources.

Description

Technical Field

[0001] The invention relates to a quick positioning and assembling mechanism for a circuit breaker tension spring. Background Art

[0002] A tension spring is a coil spring that bears axial tension. There are many types of hooks, including side hook tension spring, long hook tension spring, British hook tension spring, German hook tension spring, semicircular hook tension spring and duckbill hook tension spring, etc. The "hook" is used to ensure the source of tension in the tension spring. It is generally made of round cross-section spring steel. When not under load, the coils of the tension spring are generally tight and have no gaps between them. It works by using the rebound force after stretching to control the movement of mechanical parts, store energy, and measure the magnitude of force.

[0003] When installing a tension spring on some mechanical structures, the hooks at both ends of the tension spring are usually hung at two different positions. In particular, tension springs are widely used in circuit breaker products. The installation of a single circuit breaker tension spring can be done manually, but the manual installation method is not suitable for assembly line production. Therefore, it is necessary to develop a quick positioning assembly mechanism for circuit breaker tension springs, which is used to accurately and quickly install the hooks at both ends of the tension spring to the specified positions of the circuit breaker product, effectively improving production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a quick positioning assembly mechanism for a circuit breaker tension spring. The tension spring assembly mechanism has a compact structure and adopts fully automatic mechanical assembly. It can automatically load, remove and hang tension springs. It has stable performance, is convenient and fast, has high efficiency, and saves a lot of manpower and material resources.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention is to design a quick positioning assembly mechanism for a circuit breaker tension spring, comprising a feeding mechanism and an assembly mechanism; the feeding mechanism is parallel to the assembly mechanism and is located on one side of the assembly mechanism;

[0006] The feeding mechanism includes a material transfer cylinder, a first slider, a material trough block, an elastic block, and a first base;

[0007] A first slider is provided on the upper part of the first base; the trough block slides on the first slider; an elastic clamping block for clamping a tension spring is provided on the trough block; the cylinder body of the material transfer cylinder is arranged at the front end of the first base, and the cylinder rod of the material transfer cylinder 1 is connected to the trough block;

[0008] The assembly mechanism includes a horizontal moving mechanism, a tension spring lower end mounting mechanism and a tension spring upper end mounting mechanism;

[0009] The horizontal movement mechanism includes a second base, a servo KK module, a first sliding block, a second sliding block, upper and lower cylinders, and a first cylinder mounting plate;

[0010] The servo KK module is placed horizontally, and a second base is provided at both ends of the servo KK module. The servo KK module is connected to a first sliding block; the first sliding block is provided with an upper and lower cylinder, and the cylinder rods of the upper and lower cylinders are perpendicular to the servo KK module; slide rails are provided on both sides of the first sliding block, and a second slide block is provided on the slide rails; the second slide block is connected to the first cylinder mounting plate;

[0011] The lower end mounting mechanism of the tension spring includes a first slide cylinder, a third fixed block, and a horizontal clamping mechanism; the first slide cylinder is mounted on the first cylinder mounting plate and is close to the feeding mechanism; the cylinder rod of the first slide cylinder faces the feeding mechanism and is parallel to the servo KK module, and the cylinder rod of the first slide cylinder is connected to the third fixed block; the third fixed block is connected to the horizontal clamping mechanism, the horizontal clamping mechanism is parallel to the servo KK module, and the horizontal clamping mechanism faces away from the feeding mechanism;

[0012] The tension spring upper end mounting mechanism includes a hook lifting cylinder, a pitch changing cylinder, a hook clamping cylinder, a second fixed plate, a third clamping claw, a clamping claw arm, a fourth sliding block, a third sliding block, and a first fixed block;

[0013] The first fixed block is connected to the first cylinder mounting plate; the upper surface of the first fixed block is provided with a groove for sliding the rear end of the clamping claw arm; the rear end of the clamping claw arm is embedded in the groove of the first fixed block; the first fixed block is provided with a variable pitch cylinder, the variable pitch cylinder is parallel to the clamping claw arm, and the cylinder rod of the variable pitch cylinder is connected to the clamping claw arm; the front end of the clamping claw arm is connected to the second fixed plate; the top of the second fixed plate is connected to the hook cylinder; the middle of the second fixed plate is provided with a slide groove, the third sliding block is located at the front end of the second fixed plate, and the rear of the third sliding block passes through the slide groove of the second fixed plate, And connected to the cylinder rod of the hook lifting cylinder; the top of the third sliding block is connected to the clamping hook cylinder, and the cylinder rod of the clamping hook cylinder is connected to the fourth sliding block; the front end of the clamping jaw arm is provided with a groove for the fourth sliding block and the third sliding block to move vertically up and down; there are two third clamps, and the middle parts of the two third clamps are movably connected to the lower end of the third sliding block; the lower end of the fourth sliding block is provided with two zigzag grooves, and the upper parts of the two third clamps are provided with connecting rods, which are inserted into the zigzag grooves at the lower end of the fourth sliding block; the two third clamps are perpendicular to each other and the horizontal clamp mechanism.

[0014] Furthermore, the feeding mechanism also includes an unlocking block, a first gear point, a tension spring placement guide arm, and a finger cylinder; a first gear point for limiting the moving distance of the elastic block is provided at the rear end of the first base; an unlocking block is provided at the front end of the first gear point; a finger cylinder is provided at the front end of the first base, and the two cylinder rods of the finger cylinder are respectively connected to a tension spring placement guide arm; the two tension spring placement guide arms are arranged in parallel mirror phases, and the front ends of the two tension spring placement guide arms are provided with guide grooves for guiding the tension springs to be vertically placed into the elastic block.

[0015] Furthermore, the elastic card block includes a card block fixing, a locking plate, and an elastic plate. A slot for embedding a tension spring is provided in the center of the card block fixing, and grooves for inserting two locking plates are provided on the side walls on both sides of the card block fixing. Each of the two locking plates is hinged to an elastic plate; a return spring is provided at the tail end of the elastic plate, and one end of the return spring is connected to the card block fixing; there are two unlocking blocks, which are arranged on both sides of the rear end of the first base, and the upper structure of the unlocking block is a slope structure used to squeeze the elastic plate and rotate it inward, so that the return spring is compressed, thereby driving the locking plate to be pulled out.

[0016] Furthermore, the horizontal clamping mechanism includes a connecting rod mechanism, a clamping jaw slide rail, a first clamping jaw, a second clamping jaw, a clamping cylinder, a clamping jaw seat, and a clamping jaw limit block; one end of the clamping jaw seat is connected to a third fixed block; a clamping jaw slide rail is provided on the surface of the clamping jaw seat, and the clamping jaw slide rail is perpendicular to the servo KK module; the first clamping jaw and the second clamping jaw slide on the clamping jaw slide rail respectively, and the first clamping jaw and the second clamping jaw are parallel to the servo KK module; a clamping jaw limit block for limiting the moving distance of the first clamping jaw is provided on the clamping jaw seat on one side of the first clamping jaw; the second clamping jaw is connected to the cylinder body of the clamping cylinder, and the first clamping jaw is connected to the cylinder rod of the clamping cylinder; a V-shaped connecting rod mechanism is provided between the first clamping jaw and the second clamping jaw.

[0017] Furthermore, the horizontal clamping mechanism also includes a positioning cylinder, a cylinder mounting plate, a positioning needle, and a positioning needle seat; a positioning cylinder is provided above the middle of the first clamping jaw and the second clamping jaw, one end of the positioning cylinder is connected to the clamping jaw seat through the cylinder mounting plate, the cylinder rod of the positioning cylinder is connected to the positioning needle seat with an L-shaped cross-section, and a positioning needle is provided at the end of the positioning needle seat.

[0018] Furthermore, the tension spring upper end mounting mechanism also includes a cover plate and a second sliding block; a C-shaped cover plate is provided on both shoulders of the groove of the first fixed block; the second sliding block is connected to the rear end of the clamping claw arm, and the second sliding block slides in the cover plate.

[0019] The advantages and beneficial effects of the present invention are as follows: the quick positioning assembly mechanism of the circuit breaker tension spring of the present invention has a compact structure, can automatically assemble tension springs of different specifications, has stable performance, high efficiency, is convenient and fast, reduces the defective rate, and saves a lot of manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention.

[0021] Figure 2 Schematic diagram of the feeding mechanism.

[0022] Figure 3 Schematic diagram of the elastic card block.

[0023] Figure 4 Schematic diagram of the lower end mounting mechanism of the tension spring.

[0024] Figure 5 Schematic diagram of the horizontal gripper mechanism.

[0025] Figure 6 It is a front end schematic diagram of the upper end mounting mechanism of the tension spring.

[0026] Figure 7 It is a rear end schematic diagram of the upper end mounting mechanism of the tension spring.

[0027] Figure 8 This is a schematic diagram of the tension spring installed on the product.

[0028] Among them, the material transfer cylinder 1, the first slider 2, the material trough block 3, the second base 4, the servo KK module 5, the first slide cylinder 6, the second slider 7, the upper and lower cylinders 8, the first cylinder mounting plate 9, the hook cylinder 10, the variable pitch cylinder 11, the clamping hook cylinder 12, the connecting rod mechanism 13, the elastic block 14, the unlocking block 15, the first gear point 16, the first base 17, the tension spring placement guide arm 18, the first sliding block 19, the third fixed block 20, the positioning Cylinder 21, cylinder mounting plate 22, clamp slide rail 23, first clamp 24, positioning pin 25, second clamp 26, clamp cylinder 27, second fixed plate 28, third clamp 29, clamp arm 30, fourth sliding block 31, third sliding block 32, first fixed block 33, cover plate 34, second sliding block 35, clamp seat 36, positioning pin seat 37, clamp limit block 38, finger cylinder 39, tension spring A, releaser C, armature B. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0030] Example:

[0031] A quick positioning assembly mechanism for a circuit breaker tension spring comprises a feeding mechanism and an assembly mechanism; the feeding mechanism is parallel to the assembly mechanism and is located on one side of the assembly mechanism;

[0032] The feeding mechanism includes a material transfer cylinder 1, a first slide block 2, a material trough block 3, an elastic block 14, and a first base 17;

[0033] A first slide block 2 is provided on the upper part of the first base 17; the trough block 3 slides on the first slide block 2; an elastic clamping block 14 for clamping the tension spring A is provided on the trough block 3; the cylinder body of the material transfer cylinder 1 is arranged at the front end of the first base 17, and the cylinder rod of the material transfer cylinder 1 is connected to the trough block 3;

[0034] The assembly mechanism includes a horizontal moving mechanism, a tension spring lower end mounting mechanism and a tension spring upper end mounting mechanism;

[0035] The horizontal moving mechanism includes a second base 4, a servo KK module 5, a first sliding block 19, a second sliding block 7, upper and lower cylinders 8, and a first cylinder mounting plate 9;

[0036] The servo KK module 5 is placed horizontally, and a second base 4 is provided at both ends of the servo KK module 5. The servo KK module 5 is connected to a first sliding block 19; the first sliding block 19 is provided with an upper and lower cylinder 8, and the cylinder rods of the upper and lower cylinders 8 are perpendicular to the servo KK module 5; slide rails are provided on both sides of the first sliding block 19, and a second slide block 7 is provided on the slide rails; the second slide block 7 is connected to the first cylinder mounting plate 9;

[0037] The lower end mounting mechanism of the tension spring includes a first slide cylinder 6, a third fixed block 20, and a horizontal clamping mechanism; the first slide cylinder 6 is mounted on the first cylinder mounting plate 9 and is close to the feeding mechanism; the cylinder rod of the first slide cylinder 6 is oriented toward the feeding mechanism and is parallel to the servo KK module 5, and the cylinder rod of the first slide cylinder 6 is connected to the third fixed block 20; the third fixed block 20 is connected to the horizontal clamping mechanism, the horizontal clamping mechanism is parallel to the servo KK module 5, and the horizontal clamping mechanism is oriented away from the feeding mechanism;

[0038] The tension spring upper end mounting mechanism includes a hook lifting cylinder 10, a pitch changing cylinder 11, a hook clamping cylinder 12, a second fixed plate 28, a third clamping claw 29, a clamping claw arm 30, a fourth sliding block 31, a third sliding block 32, and a first fixed block 33;

[0039] The first fixed block 33 is connected to the first cylinder mounting plate 9; a groove is provided on the upper surface of the first fixed block 33 for sliding of the rear end of the clamping arm 30; the rear end of the clamping arm 30 is embedded in the groove of the first fixed block 33; a variable pitch cylinder 11 is provided on the first fixed block 33, the variable pitch cylinder 11 is parallel to the clamping arm 30, and the cylinder rod of the variable pitch cylinder 11 is connected to the clamping arm 30; the front end of the clamping arm 30 is connected to the second fixed plate 28; the top of the second fixed plate 28 is connected to the hook cylinder 10; a sliding groove is provided in the middle of the second fixed plate 28, the third sliding block 32 is located at the front end of the second fixed plate 28, and the rear of the third sliding block 32 passes through the second fixed plate 28, and connected to the cylinder rod of the hook cylinder 10; the top of the third sliding block 32 is connected to the clamping hook cylinder 12, and the cylinder rod of the clamping hook cylinder 12 is connected to the fourth sliding block 31; the front end of the clamping jaw arm 30 is provided with a groove for the fourth sliding block 31 and the third sliding block 32 to move vertically up and down; there are two third clamping jaws 29, and the middle parts of the two third clamping jaws 29 are movably connected to the lower end of the third sliding block 32; the lower end of the fourth sliding block 31 is provided with two zigzag slides, and the upper parts of the two third clamping jaws 29 are provided with connecting rods, which are inserted into the zigzag slides at the lower end of the fourth sliding block 31; the two third clamping jaws 29 are perpendicular to each other and the horizontal clamping jaw mechanism.

[0040] The feeding mechanism also includes an unlocking block 15, a first stop point 16, a tension spring placement guide arm 18, and a finger cylinder 39; the rear end of the first base 17 is provided with a first stop point 16 for limiting the moving distance of the elastic block 14; the front end of the first stop point 16 is provided with an unlocking block 15; the front end of the first base 17 is provided with a finger cylinder 39, and the two cylinder rods of the finger cylinder 39 are respectively connected to a tension spring placement guide arm 18; the two tension spring placement guide arms 18 are arranged in parallel, and the front ends of the two tension spring placement guide arms 18 are provided with guide grooves for guiding the tension spring A to be vertically placed into the elastic block 14.

[0041] The elastic card block 14 includes a card block fixing part 14-1, a locking piece 14-2, and an elastic piece 14-3. A slot for embedding the tension spring A is provided in the center of the card block fixing part 14-1, and grooves for two locking pieces 14-2 to penetrate are provided on the side walls on both sides of the card block fixing part 14-1. The two locking pieces 14-2 are each hinged to an elastic piece 14-3; a return spring is provided at the tail end of the elastic piece 14-2, and one end of the return spring is connected to the card block fixing part 14-1; there are two unlocking blocks 15, which are arranged on both sides of the rear end of the first base 17, and the upper structure of the unlocking block 15 is a slope structure for squeezing the elastic piece 14-3 and rotating it inward, and the return spring is compressed, thereby driving the locking piece 14-2 to be pulled out.

[0042] The horizontal clamping mechanism includes a connecting rod mechanism 13, a clamping jaw slide rail 23, a first clamping jaw 24, a second clamping jaw 26, a clamping cylinder 27, a clamping jaw seat 36, and a clamping jaw limit block 38; one end of the clamping jaw seat 36 is connected to the third fixed block 20; a clamping jaw slide rail 23 is provided on the surface of the clamping jaw seat 36, and the clamping jaw slide rail 23 is perpendicular to the servo KK module 5; the first clamping jaw 24 and the second clamping jaw 26 slide on the clamping jaw slide rail 23 respectively, and the first clamping jaw 24 and the second clamping jaw 26 are parallel to the servo KK module 5; a clamping jaw limit block 38 for limiting the moving distance of the first clamping jaw 24 is provided on the clamping jaw seat 36 on one side of the first clamping jaw 24; the second clamping jaw 26 is connected to the cylinder body of the clamping cylinder 27, and the first clamping jaw 24 is connected to the cylinder rod of the clamping cylinder 27; a V-shaped connecting rod mechanism 13 is provided between the first clamping jaw 24 and the second clamping jaw 26.

[0043] The horizontal clamping mechanism also includes a positioning cylinder 21, a cylinder mounting plate 22, a positioning needle 25, and a positioning needle seat 37; a positioning cylinder 21 is provided above the middle of the first clamping jaw 24 and the second clamping jaw 26, one end of the positioning cylinder 21 is connected to the clamping jaw seat 36 through the cylinder mounting plate 22, the cylinder rod of the positioning cylinder 21 is connected to the positioning needle seat 37 with an L-shaped cross-section, and a positioning needle 25 is provided at the end of the positioning needle seat 37.

[0044] The tension spring upper end mounting mechanism also includes a cover plate 34 and a second sliding block 35 ; a C-shaped cover plate 34 is provided on both shoulders of the groove of the first fixing block 33 ; the second sliding block 35 is connected to the rear end of the clamping claw arm 30 , and the second sliding block 35 slides in the cover plate 34 .

[0045] The method of using the above-mentioned tension spring assembly mechanism is as follows: the tension spring A is clamped into the elastic clamping block 14 by means of a mechanical arm or the like, and at this time the elastic clamping block 14 is located on the side close to the finger cylinder 39; during this process, the finger cylinder 39 drives the tension spring placement guide arm 18 to merge, and the guide groove at the front end of the tension spring placement guide arm 18 can ensure that the tension spring A is placed vertically into the elastic clamping block 14 to prevent the tension spring A from tilting; after the placement is completed, the finger cylinder 39 drives the tension spring placement guide arm 18 to reset, and the elastic clamping block 14 moves to the other end of the first base 17 under the action of the material transfer cylinder 1, and at this time the unlocking block 15 squeezes the elastic sheet 14-3, so that the locking sheet 14-2 moves outward, thereby achieving unlocking. The servo KK module 5 and the first slide cylinder 6 drive the lower end installation mechanism of the tension spring to the position of the elastic block 14, and the clamping cylinder 27 drives the first clamp 24 and the second clamp 26 to clamp the tension spring A; then, the servo KK module 5 and the first slide cylinder 6 drive the first clamp 24 and the second clamp 26 to hang the lower hook of the tension spring A into the hole of the circuit breaker product release C, and the positioning pin 25 plays a positioning role in this process; at this time, the third clamp 29 of the upper end installation mechanism of the tension spring is driven by the lifting hook cylinder 10, the variable pitch cylinder 11, and the clamping hook cylinder 12 to lower the upper hook of the tension spring A and hang it on the hook of the armature B of the circuit breaker product. That is, the process of installing the tension spring A on the circuit breaker product is completed.

[0046] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A quick positioning assembly mechanism for a circuit breaker tension spring, characterized in that: It includes a feeding mechanism and an assembling mechanism; the feeding mechanism is parallel to the assembling mechanism and is located on one side of the assembling mechanism; The feeding mechanism includes a material transfer cylinder, a first slider, a material trough block, an elastic block, and a first base; A first slider is provided on the upper part of the first base; the trough block slides on the first slider; an elastic clamping block for clamping a tension spring is provided on the trough block; the cylinder body of the material transfer cylinder is arranged at the front end of the first base, and the cylinder rod of the material transfer cylinder 1 is connected to the trough block; The assembly mechanism includes a horizontal moving mechanism, a tension spring lower end mounting mechanism and a tension spring upper end mounting mechanism; The horizontal movement mechanism includes a second base, a servo KK module, a first sliding block, a second sliding block, upper and lower cylinders, and a first cylinder mounting plate; The servo KK module is placed horizontally, and a second base is provided at both ends of the servo KK module. The servo KK module is connected to a first sliding block; the first sliding block is provided with an upper and lower cylinder, and the cylinder rods of the upper and lower cylinders are perpendicular to the servo KK module; slide rails are provided on both sides of the first sliding block, and a second slide block is provided on the slide rails; the second slide block is connected to the first cylinder mounting plate; The lower end mounting mechanism of the tension spring includes a first slide cylinder, a third fixed block, and a horizontal clamping mechanism; the first slide cylinder is mounted on the first cylinder mounting plate and is close to the feeding mechanism; the cylinder rod of the first slide cylinder faces the feeding mechanism and is parallel to the servo KK module, and the cylinder rod of the first slide cylinder is connected to the third fixed block; the third fixed block is connected to the horizontal clamping mechanism, the horizontal clamping mechanism is parallel to the servo KK module, and the horizontal clamping mechanism faces away from the feeding mechanism; The tension spring upper end mounting mechanism includes a hook lifting cylinder, a pitch changing cylinder, a hook clamping cylinder, a second fixed plate, a third clamping claw, a clamping claw arm, a fourth sliding block, a third sliding block, and a first fixed block; The first fixed block is connected to the first cylinder mounting plate; the upper surface of the first fixed block is provided with a groove for sliding the rear end of the clamping claw arm; the rear end of the clamping claw arm is embedded in the groove of the first fixed block; the first fixed block is provided with a variable pitch cylinder, the variable pitch cylinder is parallel to the clamping claw arm, and the cylinder rod of the variable pitch cylinder is connected to the clamping claw arm; the front end of the clamping claw arm is connected to the second fixed plate; the top of the second fixed plate is connected to the hook cylinder; the middle of the second fixed plate is provided with a slide groove, the third sliding block is located at the front end of the second fixed plate, and the rear of the third sliding block passes through the slide groove of the second fixed plate, and connected to the cylinder rod of the hook lifting cylinder; the top of the third sliding block is connected to the clamping hook cylinder, and the cylinder rod of the clamping hook cylinder is connected to the fourth sliding block; the front end of the clamping claw arm is provided with a groove for the fourth sliding block and the third sliding block to move vertically up and down; there are two third clamping claws, and the middle parts of the two third clamping claws are movably connected to the lower end of the third sliding block; the lower end of the fourth sliding block is provided with two broken line sliding grooves, and the upper parts of the two third clamping claws are provided with connecting rods, which are inserted into the broken line sliding grooves at the lower end of the fourth sliding block; the two third clamping claws are perpendicular to each other and the horizontal clamping claw mechanism; The feeding mechanism also includes an unlocking block, a first stop point, a tension spring placement guide arm, and a finger cylinder; a first stop point for limiting the moving distance of the elastic block is provided at the rear end of the first base; an unlocking block is provided at the front end of the first stop point; a finger cylinder is provided at the front end of the first base, and two cylinder rods of the finger cylinder are respectively connected to a tension spring placement guide arm; the two tension spring placement guide arms are arranged in parallel, and the front ends of the two tension spring placement guide arms are provided with a guide groove for guiding the tension spring to be vertically placed in the elastic block; The horizontal clamping mechanism includes a connecting rod mechanism, a clamping jaw slide rail, a first clamping jaw, a second clamping jaw, a clamping cylinder, a clamping jaw seat, and a clamping jaw limit block; one end of the clamping jaw seat is connected to a third fixed block; a clamping jaw slide rail is provided on the surface of the clamping jaw seat, and the clamping jaw slide rail is perpendicular to the servo KK module; the first clamping jaw and the second clamping jaw slide on the clamping jaw slide rail respectively, and the first clamping jaw and the second clamping jaw are parallel to the servo KK module; a clamping jaw limit block for limiting the moving distance of the first clamping jaw is provided on the clamping jaw seat on one side of the first clamping jaw; the second clamping jaw is connected to the cylinder body of the clamping cylinder, and the first clamping jaw is connected to the cylinder rod of the clamping cylinder; a V-shaped connecting rod mechanism is provided between the first clamping jaw and the second clamping jaw.

2. The quick positioning and assembling mechanism for the tension spring of a circuit breaker according to claim 1, characterized in that: The elastic card block includes a card block fixing piece, a locking piece, and an elastic piece. A slot for embedding a tension spring is provided in the center of the card block fixing piece, and grooves for two locking pieces to penetrate are provided on the side walls on both sides of the card block fixing piece. Each of the two locking pieces is hinged to an elastic piece; a reset spring is provided at the tail end of the elastic piece, and one end of the reset spring is connected to the card block fixing piece; there are two unlocking blocks, which are arranged on both sides of the rear end of the first base, and the upper structure of the unlocking block is a slope structure used to squeeze the elastic piece and rotate it inward. The reset spring is compressed, thereby driving the locking piece to be pulled out.

3. The quick positioning and assembling mechanism for the tension spring of a circuit breaker according to claim 1, characterized in that: The horizontal clamping mechanism also includes a positioning cylinder, a cylinder mounting plate, a positioning needle, and a positioning needle seat; a positioning cylinder is provided above the middle of the first clamping jaw and the second clamping jaw, one end of the positioning cylinder is connected to the clamping jaw seat through the cylinder mounting plate, the cylinder rod of the positioning cylinder is connected to the positioning needle seat with an L-shaped cross-section, and a positioning needle is provided at the end of the positioning needle seat.

4. The quick positioning and assembling mechanism for the circuit breaker tension spring according to claim 1, characterized in that: The tension spring upper end mounting mechanism also includes a cover plate and a second sliding block; a C-shaped cover plate is provided on both shoulders of the groove of the first fixed block; the second sliding block is connected to the rear end of the clamping claw arm, and the second sliding block slides in the cover plate.

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