Slotting device for comb-shaped contact plate of circuit breaker contact

Abstract

The utility model relates to the technical field of circuit breaker production, in particular to a slotting device for a comb-shaped contact plate of a circuit breaker contact, which is reasonable in structural design and comprises a bearing assembly and a stamping slotting assembly arranged above the bearing assembly, and a comb-shaped contact plate raw material plate is positioned and loaded by utilizing a positioning convex column of the bearing assembly. The overturning lifting mechanism rotates to transfer a comb-shaped touch panel raw material plate to the position below the stamping and slotting assembly, a punch in the stamping and slotting assembly is driven by a stamping push rod to rapidly move downwards, a plate body of the comb-shaped touch panel raw material plate is subjected to stamping forming and slotting, and a comb-shaped touch panel semi-finished product is obtained; and then the overturning lifting mechanism drives the semi-finished comb-shaped touch panel to move up and down in a reciprocating mode, the edge grinding coating on the punch is used for conducting edge grinding treatment on the inner wall of a groove formed in the semi-finished comb-shaped touch panel, in this way, edge grinding treatment is conducted on the inner wall of the semi-finished comb-shaped touch panel in time after the groove is formed, other working procedures are not needed for treatment, and batch production and machining of the comb-shaped touch panel are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker production, in particular to a grooving device for a comb-shaped contact plate of a circuit breaker contact. Background Technique

[0002] A circuit breaker refers to a switching device that can close, carry, and break the current under normal circuit conditions and can close, carry, and break the current under abnormal circuit conditions within a specified time. The company has developed a comb-shaped contact plate for a circuit breaker contact, such as a comb-shaped contact plate for a circuit breaker contact system disclosed in the publication number CN215266162U, which includes a plate body. One end of the plate body is evenly provided with a row of first contact strips, and the other end is evenly provided with second contact strips with a length shorter than that of the first contact strips. First / second grooves are provided between adjacent two first / second contact strips. First / second arc grooves are provided at the inner ends of the first / second grooves. First / second protrusions are provided near the outer ends of the first / second contact strips. The outer end faces of the first and second protrusions are used as functional contact surfaces. At least one mounting hole for facilitating the mounting of the plate body on a cushion block is arranged side by side in the middle of the plate body.

[0003] The above-mentioned comb-shaped contact plate for a circuit breaker contact needs to use a grooving device to realize the forming process of grooving. However, the traditional grooving device for a comb-shaped contact plate of a circuit breaker has deficiencies in use. It cannot perform edge grinding on the inner wall in time after grooving is formed, and other processes are required for processing, which is not conducive to the batch production and processing of the comb-shaped contact plate. Therefore, it needs to be optimized and improved. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the above problems existing in the traditional technology and provide a grooving device for a comb-shaped contact plate of a circuit breaker.

[0005] In order to achieve the above technical purpose and reach the above technical effect, the utility model is realized through the following technical solutions:

[0006] A grooving device for a comb-shaped contact plate of a circuit breaker includes a carrying component and a stamping and grooving component arranged above it;

[0007] The comb-shaped contact plate raw material plate includes a plate body, and a plurality of positioning holes are arranged side by side on the plate body;

[0008] The carrying component includes a bottom plate, a flipping and lifting mechanism, a supporting plate, a lower ring sleeve and an upper sliding ring. The bottom plate supports the supporting plate through the flipping and lifting mechanism. The lower ring sleeve is fixed to the upper end of the bottom plate. The upper sliding ring is fixed to the lower side of the supporting plate. An annular cavity for facilitating the rotation and lifting of the upper sliding ring is arranged in the lower ring sleeve. A plurality of adsorption stations are arranged along the circumferential direction at the upper end of the supporting plate. Positioning convex columns matched with the positioning holes are arranged at the upper ends of the adsorption stations. A plurality of stamping avoidance grooves are arranged in the adsorption stations;

[0009] The stamping and grooving assembly includes a base plate, a stamping push rod, a guiding joint pipe, a movable plate and a punch. A stamping push rod and a guiding joint pipe are installed between the base plate and the movable plate. A punch for stamping a slit on the plate body is installed on the lower side of the movable plate. An edge grinding coating is provided on the upper surface of the punch.

[0010] Further, in the above grooving device for the comb-shaped contact plate of the circuit breaker contact, a vacuum chuck for adsorbing the plate body is embedded and installed at the adsorption station of the support plate.

[0011] Further, in the above grooving device for the comb-shaped contact plate of the circuit breaker contact, the flipping and lifting mechanism includes a lifting push rod, a rotary joint, a hexagonal column, an L-shaped bracket, a rotary drive motor and a belt transmission member. The lifting push rod is fixed at the center of the upper side of the bottom plate. The movable end of the lifting push rod is connected to the bottom end of the hexagonal column through the rotary joint. The top end of the hexagonal column is fixed to the support plate. The rotary drive motor is installed on the L-shaped bracket. The output shaft of the rotary drive motor is in transmission connection with the hexagonal column through the belt transmission member.

[0012] Further, in the above grooving device for the comb-shaped contact plate of the circuit breaker contact, the belt transmission member includes a driving sprocket, a driven sprocket and a transmission chain belt. The driving sprocket is fixed on the output shaft of the rotary drive motor. The driven sprocket is sleeved on the outer side of the hexagonal column. The transmission chain belt is sleeved on the outer sides of the driving sprocket and the driven sprocket.

[0013] Further, in the above grooving device for the comb-shaped contact plate of the circuit breaker contact, the vertical plate part of the L-shaped bracket is fixed on the bottom plate, and a movable cavity for facilitating the rotation of the belt transmission member is provided on the horizontal plate part of the L-shaped bracket.

[0014] Further, in the above grooving device for the comb-shaped contact plate of the circuit breaker contact, the edge grinding coating is a titanium nitride coating, and the height value of the edge grinding coating is 10 - 20 times the thickness value of the plate body in the raw material plate of the comb-shaped contact plate.

[0015] The beneficial effects of the present utility model are:

[0016] The structure of the utility model is reasonably designed, including a bearing component and a stamping and grooving component arranged above it. The positioning convex columns of the bearing component are used to position and load the raw material plate of the comb-shaped contact plate. The flipping and lifting mechanism transfers the raw material plate of the comb-shaped contact plate to the lower part of the stamping and grooving component by rotation. In the stamping and grooving component, the punch moves quickly downward driven by the stamping push rod, and grooves are stamped and formed on the plate body of the raw material plate of the comb-shaped contact plate to obtain a semi-finished product of the comb-shaped contact plate. Then, the flipping and lifting mechanism drives the semi-finished product of the comb-shaped contact plate to reciprocate up and down, and the inner wall of the groove of the semi-finished product of the comb-shaped contact plate is ground by using the grinding coating on the punch. By this way, the inner wall of the groove is ground in time after the groove is formed, without the need for other processes, which is beneficial to the batch production and processing of the comb-shaped contact plate.

[0017] Of course, it is not necessary for any product implementing the utility model to achieve all the above advantages simultaneously. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is the schematic structural diagram of the whole utility model;

[0020] Figure 2 is the schematic structural diagram of the raw material plate of the comb-shaped contact plate in the utility model;

[0021] Figure 3 is the schematic structural diagram of the semi-finished product of the comb-shaped contact plate in the utility model;

[0022] Figure 4 is the schematic structural diagram of the bearing component in the utility model;

[0023] Figure 5 is the top view structural diagram of the lower ring sleeve and the upper sliding ring in the utility model;

[0024] Figure 6 is the schematic structural diagram of the belt transmission part in the utility model;

[0025] Figure 7 is the schematic structural diagram of the stamping and grooving component in the utility model;

[0026] Figure 8 is the bottom view structural diagram of the punch in the utility model;

[0027] In the drawings, the components represented by the respective reference numerals are described as follows:

[0028] 1 - Bearing component, 101 - Bottom plate, 102 - Lifting push rod, 103 - Rotary joint, 104 - Hexagonal column, 105 - Support plate, 106 - Positioning convex column, 107 - Lower ring sleeve, 108 - Upper sliding ring, 109 - L-shaped bracket, 110 - Rotary drive motor, 111 - Belt transmission component;

[0029] 2 - Stamping and grooving component, 201 - Substrate, 202 - Stamping push rod, 203 - Guide joint pipe, 204 - Movable plate, 205 - Punch, 206 - Edge grinding coating;

[0030] 3a - Raw material plate of comb-shaped contact plate, 3b - Semi-finished product of comb-shaped contact plate, 301 - Plate body, 302 - Positioning hole, 303 - Groove. Specific implementation mode

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] As Figures 1 - 8 shown, this embodiment provides a grooving device for a comb-shaped contact plate of a circuit breaker contact, including a bearing component 1 and a stamping and grooving component 2 arranged above it.

[0033] In this embodiment, the raw material plate 3a of the comb-shaped contact plate includes a plate body 301, and a plurality of positioning holes 302 are arranged side by side on the plate body 301. The semi-finished product 3b of the comb-shaped contact plate is stamped with grooves 303 on the plate body 301, and the semi-finished product 3b of the comb-shaped contact plate is also the processing target of this device. Subsequently, the semi-finished product 3b of the comb-shaped contact plate is processed into the required comb-shaped contact plate structure through a bending process.

[0034] In this embodiment, the bearing component 1 includes a bottom plate 101, a flipping and lifting mechanism, a support plate 105, a lower ring sleeve 107 and an upper sliding ring 108. The bottom plate 101 supports a support plate 105 through the flipping and lifting mechanism. A lower ring sleeve 107 is fixed to the upper end of the bottom plate 101, and an upper sliding ring 108 is fixed to the lower side of the support plate 105. An annular cavity for the rotation and lifting of the upper sliding ring 108 is provided in the lower ring sleeve 107. A plurality of adsorption stations are arranged along the circumference at the upper end of the support plate 105. Positioning convex columns 106 cooperating with the positioning holes 302 are arranged at the upper ends of the adsorption stations, and a plurality of stamping avoidance grooves matching the shape of the grooves 303 are provided in the adsorption stations.

[0035] In this embodiment, a vacuum chuck for adsorbing the plate body 301 is embedded and installed at the adsorption station of the support plate 105.

[0036] In this embodiment, the flipping and lifting mechanism includes a lifting push rod 102, a rotary joint 103, a hexagonal column 104, an L-shaped bracket 109, a rotary drive motor 110, and a belt transmission member 111. The lifting push rod 102 is fixed at the center of the upper side of the bottom plate 101. The movable end of the lifting push rod 102 is connected to the bottom end of the hexagonal column 104 through the rotary joint 103. The top end of the hexagonal column 104 is fixed to the support plate 105. The rotary drive motor 110 is installed on the L-shaped bracket 109. The output shaft of the rotary drive motor 110 is in transmission connection with the hexagonal column 104 through the belt transmission member 111.

[0037] In this embodiment, the belt transmission member 111 includes a driving sprocket, a driven sprocket, and a transmission chain belt. The driving sprocket is fixed on the output shaft of the rotary drive motor 110. The driven sprocket is sleeved on the outer side of the hexagonal column 104. The transmission chain belt is sleeved on the outer sides of the driving sprocket and the driven sprocket. The vertical plate portion of the L-shaped bracket 109 is fixed to the bottom plate. An activity cavity for facilitating the rotation of the belt transmission member 111 is formed in the horizontal plate portion of the L-shaped bracket 109.

[0038] In this embodiment, the stamping and grooving assembly 2 includes a base plate 201, a stamping push rod 202, a guiding joint pipe 203, a movable plate 204, and a punch 205. The stamping push rod 202 and the guiding joint pipe 203 are installed between the base plate 201 and the movable plate 204. A punch 205 for stamping and forming a slit 303 on the plate body 301 is installed on the lower side of the movable plate 204. A grinding edge coating 206 is provided on the upper surface of the punch 205.

[0039] In this embodiment, the grinding edge coating 206 is a titanium nitride coating, and the height value of the grinding edge coating 206 is 10 to 20 times the thickness value of the plate body 301 in the comb-shaped contact plate raw material plate 3a.

[0040] A specific application of this embodiment is as follows: This device includes a loading and bearing assembly 1 and a stamping and grooving assembly 2 disposed above it. During use, the positioning convex column 106 of the loading and bearing assembly 1 is used to position and load the comb-shaped contact plate raw material plate 3a. Then, the flipping and lifting mechanism rotates to transfer the comb-shaped contact plate raw material plate 3a to the lower side of the stamping and grooving assembly 2. The punch 205 in the stamping and grooving assembly 2 quickly moves downward driven by the stamping push rod 202, and a slit 303 is stamped and formed on the plate body 301 of the comb-shaped contact plate raw material plate 3a to obtain a comb-shaped contact plate semi-finished product 3b. Then, the flipping and lifting mechanism drives the comb-shaped contact plate semi-finished product 3b to reciprocate up and down, and the inner wall of the slit 303 of the comb-shaped contact plate semi-finished product 3b is ground using the grinding edge coating 206 on the punch 205. Then, the stamping and grooving assembly 2 resets, and the flipping and lifting mechanism drives the support plate 105 to rotate a certain angle (this angle is equal to the central angle between adjacent two adsorption stations), and then the next slitting operation can be carried out.

[0041] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to only the specific embodiments. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A slotting device for a comb-shaped contact plate of a circuit breaker contact, characterized in that: It includes a bearing assembly and a stamping and slotting assembly arranged above the bearing assembly; The comb-shaped touch panel raw material plate comprises a plate body, and a plurality of positioning holes are arranged side by side on the plate body; The bearing assembly includes a bottom plate, a flip lifting mechanism, a support plate, a lower ring sleeve and an upper slip ring. The bottom plate supports the support plate through the flip lifting mechanism. The upper end of the bottom plate is fixed with a lower ring sleeve. The lower side of the support plate is fixed with an upper slip ring. The lower ring sleeve is provided with an annular cavity for facilitating the rotation and lifting of the upper slip ring. The upper end of the support plate is provided with a plurality of adsorption stations along the circumferential direction. The upper end of the adsorption station is provided with a positioning convex column matched with a positioning hole. The adsorption station is provided with a plurality of stamping avoidance grooves. The stamping and grooving assembly includes a base plate, a stamping push rod, a guide joint tube, a movable plate and a punch. The stamping push rod and the guide joint tube are installed between the base plate and the movable plate. A punch for stamping and forming slits on the plate body is installed on the lower side of the movable plate, and the upper surface of the punch is provided with an edge grinding coating.

2. The slotting device for the comb-shaped contact plate of a circuit breaker contact according to claim 1, characterized in that: The support plate is located at the adsorption station and is embedded with a vacuum suction cup for adsorbing the plate body.

3. The slotting device for the comb-shaped contact plate of a circuit breaker contact according to claim 2, characterized in that: The flip lifting mechanism includes a lifting push rod, a rotating joint, a hexagonal column, an L-shaped bracket, a rotating drive motor and a belt transmission member. The lifting push rod is fixed at the upper center of the base plate, the movable end of the lifting push rod is connected to the bottom end of the hexagonal column via a rotating joint, the top end of the hexagonal column is fixed to the support plate, and a rotating drive motor is installed on the L-shaped bracket. The output shaft of the rotating drive motor is connected to the hexagonal column via a belt transmission member.

4. The slotting device for the comb-shaped contact plate of a circuit breaker contact according to claim 3, characterized in that: The belt transmission member includes a driving sprocket, a driven sprocket and a transmission chain belt, the driving sprocket is fixed on the output shaft of the rotary drive motor, the driven sprocket is sleeved on the outside of the hexagonal column, and the transmission chain belt is sleeved on the outside of the driving sprocket and the driven sprocket.

5. The slotting device for the comb-shaped contact plate of a circuit breaker contact according to claim 4, characterized in that: The vertical plate portion of the L-shaped bracket is fixed on the bottom plate, and the horizontal plate portion of the L-shaped bracket is provided with an active cavity for facilitating the rotation of the belt transmission member.

6. The slotting device for comb-shaped contact plates of circuit breaker contacts according to claim 5, characterized in that: The edge grinding coating is a titanium nitride coating, and the height of the edge grinding coating is 10 to 20 times the thickness of the plate body in the raw material plate of the comb-shaped touch panel.

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