Electrically-operated switching-on and switching-off mechanism and production process thereof

Abstract

The invention relates to an electrically-operated switching-on and switching-off mechanism, which comprises a driving connecting wheel, and is characterized in that the driving connecting wheel is connected with an operating handle and a switching-on and switching-off mechanism through a long transmission rod and a short transmission rod respectively, and the driving connecting wheel is provided with a first sector gear; a worm is connected to an output shaft of the driving motor; a first auxiliary gear which is coaxial with the worm gear is fixed on one side of the worm gear; a second auxiliary gear which is coaxial with the second main gear is fixed on one side of the second main gear; a second sector gear which is coaxial with the third main gear is fixed on one side of the third main gear; wherein the driving connecting wheel and the second main gear are rotationally connected to the center shaft, the worm is meshed with the worm gear, and the first auxiliary gear is meshed with the second main gear. The invention has the beneficial effects of being capable of realizing remote switching-on and switching-off actions, simple and compact in structure and small in size.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit breakers, and in particular to an electrically operated opening and closing mechanism and a production process thereof. Background Art

[0002] A circuit breaker is a switch device that can close, carry and disconnect current under normal circuit conditions and close, carry and disconnect current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The boundary between high and low voltage is relatively vague, and those above 3kV are generally called high-voltage electrical appliances.

[0003] Chinese patent document CN115910716A discloses a circuit breaker, which includes a button mechanism, an operating mechanism, a contact system, a first arc extinguishing system, a first incoming line terminal and a first outgoing line terminal; the first contact system includes a first moving contact mechanism and a first static contact and a second static contact respectively arranged on both sides of the first moving contact mechanism, the first arc extinguishing system includes a first arc extinguishing chamber and a second arc extinguishing chamber, the button mechanism, the operating mechanism and the first moving contact mechanism are sequentially driven and connected; the button mechanism, the operating mechanism and the first incoming line terminal are sequentially arranged along the length direction of the circuit breaker and are all located on one side in the width direction of the circuit breaker; the first outgoing line terminal, the second arc extinguishing chamber, the first moving contact mechanism and the first arc extinguishing chamber are sequentially arranged along the length direction of the circuit breaker and are located on the other side in the width direction of the circuit breaker, the first outgoing line terminal and the button mechanism are located at one end in the length direction of the circuit breaker, and the first arc extinguishing chamber and the first incoming line terminal are located at the other end in the length direction of the circuit breaker.

[0004] The above patent controls the opening and closing of the circuit breaker by manual operation when in use. Therefore, every time the circuit breaker needs to be operated, the circuit breaker needs to be manually opened and closed on site, which is not convenient to use. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide an electrically operated opening and closing mechanism and a production process thereof to solve the above-mentioned problems.

[0006] The technical solution of the present invention is implemented as follows: an electrically operated opening and closing mechanism, comprising:

[0007] A driving connecting wheel, wherein the driving connecting wheel is connected to the operating handle and the opening and closing mechanism through a long transmission rod and a short transmission rod respectively, and a first sector gear is provided on the driving connecting wheel;

[0008] A drive motor, wherein a worm is connected to an output shaft of the drive motor;

[0009] A worm wheel, a first gear pair having a coaxial center is fixed on one side of the worm wheel;

[0010] A second main gear, a coaxial second sub-gear being fixed on one side of the second main gear;

[0011] A third main gear, a coaxial second sector gear being fixed on one side of the third main gear;

[0012] Among them, the driving connecting wheel and the second main gear are rotatably connected on the central shaft, the worm is meshed with the worm wheel, the first sub-gear is meshed with the second main gear, the second sub-gear is meshed with the third main gear, and the second sector gear is meshed with the first sector gear.

[0013] By adopting the above technical solution, when remote opening and closing action is required, the driving motor runs to drive the worm wheel to rotate through the worm, and then drives the first sector gear and the driving connecting wheel to rotate through the first sub-gear, the second main gear, the second sub-gear, the third main gear, and the second sector gear in sequence, thereby realizing remote opening and closing action, with a simple, compact structure and small size.

[0014] The present invention is further configured as follows: a transmission hole is opened in one end of the worm, the cross-section of the transmission hole is set to be a polygon, the output shaft of the drive motor is set to a shape matching the transmission hole, and the output shaft is inserted into the transmission hole and connected to the worm transmission.

[0015] By adopting the above technical solution, the contact area between the output shaft of the driving motor and the worm can be effectively increased, thereby improving the stability of the connection, making the transmission more stable, and effectively reducing the volume.

[0016] The present invention is further configured such that: the cross section of the transmission hole is configured as a triangle, and the three corners are configured as rounded corners.

[0017] By adopting the above technical solution, the connection between the transmission hole and the output shaft can be made more stable, and the output shaft can be inserted into the transmission hole more conveniently and easily.

[0018] A production process of an electrically operated opening and closing mechanism comprises the following steps:

[0019] S1: feeding the raw material rod into the electromagnetic heating mechanism to heat the middle part of the raw material rod to be formed;

[0020] S2: When the temperature of the heating position on the raw material rod reaches 900℃-1100℃, maintain it for 0-10 minutes;

[0021] S3: inserting the inner hole forming rod into the inner hole of the raw material rod through the worm forming device, taking the raw material rod out from the electromagnetic heating mechanism, and sending it into the circumferential hot pressing mechanism for forming;

[0022] S4: forming a thread on the outer wall of the raw material rod through the action of the circumferential hot pressing device, and forming the inner hole into a shape matching the outer wall of the inner hole forming rod;

[0023] S5: Maintaining in the circumferential hot pressing mechanism for 0-10 minutes to form a worm;

[0024] S6: After the preset time is reached, the worm is taken out from the circumferential hot pressing mechanism;

[0025] S7: Cool to room temperature;

[0026] S8: The cooled worm is quenched.

[0027] By adopting the above technical solution, the outer wall of the raw material rod can be effectively hot-pressed into a thread, and the inner wall of the raw material rod can be extruded into a shape that matches the outer wall of the inner hole forming rod, thereby reducing the processing steps, achieving better forming effects, and increasing strength, and being able to effectively process raw material rods with smaller volumes.

[0028] The present invention is further configured as follows: the worm forming device comprises:

[0029] A base, wherein the base is provided with a slide rail, and a plurality of sets of sliders are slidably connected to the slide rail, and the base is provided with a vertically arranged electromagnetic heating mechanism;

[0030] A clamping and steering mechanism, the clamping and steering mechanism is used to clamp one end of the raw material rod and turn the raw material rod over;

[0031] A circumferential hot pressing mechanism, which is used to circumferentially extrude the heated raw material rod;

[0032] A fixing fixture, the fixing fixture is used to fix and clamp one end of the raw material rod passing through the circumferential hot pressing mechanism;

[0033] Among them, the clamping and steering mechanism and the fixing fixture are respectively slidably connected to the slide rail through a group of sliders, the circumferential hot pressing mechanism is fixedly installed on the base, the circumferential hot pressing mechanism is located between the clamping and steering mechanism and the fixing fixture, and the electromagnetic heating mechanism is located below the moving path of the clamping and steering mechanism.

[0034] By adopting the above technical scheme, the raw material rod is first placed in the electromagnetic heating mechanism for heating. After the heating is completed, the raw material rod is clamped by the clamping and steering mechanism and taken out from the electromagnetic heating mechanism, and sent to the circumferential hot pressing mechanism. The raw material rod is extruded by the circumferential hot pressing mechanism to form the external thread and transmission hole on the worm. After forming, the worm is taken out of the circumferential hot pressing mechanism and removed from the clamping and steering mechanism to complete the processing. The conveying processing is automatically carried out with high production efficiency.

[0035] The present invention is further configured as follows: the clamping and steering mechanism comprises:

[0036] A column, wherein a plurality of columns are arranged vertically on the slider, a top plate is arranged on the top of the column, and a lifting cylinder is arranged on the top plate;

[0037] A slide plate, wherein the slide plate is slidably connected to the upright post, and two first connecting plates are protruding from the lower side of the slide plate;

[0038] A driving wheel, wherein a driving motor is connected to the center of the driving wheel, and two guide grooves are provided on the driving wheel, and the two guide grooves are symmetrically arranged about the axis of the driving wheel, and the guide grooves are arranged in an arc shape, with one end close to the outside of the driving wheel and the other end close to the center of the driving wheel;

[0039] A limit frame, wherein both ends of the limit frame are downwardly protruding with a second connecting plate, a sliding groove is provided on the second connecting plate, and an inner hole forming rod is fixedly connected to the lower side of the limit frame;

[0040] A clip, wherein two clips are provided, and both ends of the clip are respectively slidably connected to the two second connecting plates, the inner hole forming rod is located between the two clips, and one end of the two clips passes through the second connecting plate on one side and extends to the two guide grooves for transmission connection;

[0041] Among them, the output shaft of the lifting cylinder is connected to the slide plate, the driving motor is fixedly installed on the first connecting plate, the limit frame is located between the two first connecting plates, and the second connecting plate on one side is rotatably connected to the first connecting plate through a connecting shaft.

[0042] By adopting the above technical scheme, the slider can drive the clamping and steering mechanism to move horizontally. When the clamping and steering mechanism moves to the top of the electromagnetic heating mechanism, the lifting cylinder drives the slide plate to move downward, so that the inner hole forming rod on the limit frame is inserted into the raw material rod in the electromagnetic heating mechanism. At the same time, the two clamps are located on both sides of the upper end of the raw material rod, and then the driving motor drives the driving wheel to rotate 90° forward, so that the clamps are close to each other under the action of the guide groove to clamp the upper end of the raw material rod, and then the lifting cylinder drives the slide plate to move upward to take the raw material rod out of the electromagnetic heating mechanism, and then the driving motor drives the driving wheel to continue to rotate 90° forward, thereby driving the limit frame to rotate 90° forward, so that the raw material rod rotates from a vertical state to a horizontal state, and then the slider drives the clamping and steering mechanism to approach the circumferential hot pressing mechanism to insert the raw material rod into the circumferential hot pressing mechanism, and is processed by the circumferential hot pressing mechanism; the clamping and flipping actions of the raw material rod can be realized by a driving motor, and the structure is simple and convenient.

[0043] The present invention is further configured as follows: the guide groove includes a first endpoint and a second endpoint, the second endpoint is closer to the axis of the driving wheel than the first endpoint, when one end of the clip is located at the first endpoint, the two clips are in a loosened state, and when one end of the clip is located at the second endpoint, the two clips are in a clamped state, and the first endpoint and the second endpoint are perpendicular to a connecting line with the axis of the driving wheel; a first limit block and a second limit block are protruding from the inner side of the first connecting plate, and the first limit block and the second limit block are used to limit the rotation angle of the limit frame.

[0044] By adopting the above technical solution, when the clamping piece needs to clamp the raw material rod, the end of the clamping piece moves from the first end point to the second end point, so that the clamping pieces in the two guide grooves gradually approach the axis of the driving wheel, so that the two clamping pieces gradually approach each other to achieve clamping, and when the end of the clamping piece reaches the second end point, the driving wheel continues to rotate and can drive the limit frame to rotate through the clamping piece, thereby realizing the flipping of the raw material rod; the first limit block can effectively limit the position of the limit frame when the raw material rod is in a vertical state, and the second limit block can effectively limit the position of the limit frame when the raw material rod is in a horizontal state, so that the rotation angle of the limit frame is maintained at 90° each time, which is more accurate and stable.

[0045] The present invention is further configured as follows: a torsion spring is provided on the connecting shaft, two ends of the torsion spring are respectively connected to the first connecting plate and the second connecting plate, and the middle portion of the clip is configured as an arc shape matching the outer wall of one end of the raw material rod.

[0046] By adopting the above technical scheme, when no external force is applied, the torsion spring presses the limit frame against the first limit block, thereby keeping the inner hole forming rod in a vertical state; therefore, when the driving wheel rotates forward, it will first drive the two clamps to approach each other, while the limit frame remains stationary. When the two clamps clamp the raw material rod and cannot move further closer, the driving wheel will overcome the elastic force of the torsion spring through the action of the clamps and drive the limit frame to rotate, thereby causing the clamps to flip to a horizontal state while clamping the raw material rod; when the driving motor reverses, the torsion spring will cause the limit frame to reset first while the two clamps remain in a clamped state. Only when the limit frame is reset in place can the two clamps be driven to separate; the torsion spring can ensure the sequence of actions.

[0047] The present invention is further configured as follows: the circumferential hot pressing mechanism comprises:

[0048] A shell, the shell is fixedly mounted on the base, two ends of the shell are connected through, and the two ends of the shell are respectively arranged toward the clamping steering mechanism and the fixing fixture;

[0049] A pressure block, wherein the pressure block is disposed in the housing and is arranged in a plurality, the pressure blocks are arranged in a circular circumferential direction around the central axis of the housing, and the inner wall of the pressure block corresponds to the thread on the outer wall of the worm;

[0050] A hydraulic cylinder, wherein the hydraulic cylinder is fixed on the housing and the telescopic shaft is connected to the outer side of the pressing block;

[0051] The raw material rod extends between the pressing blocks and passes through one end of the shell to extend toward the fixing fixture, and the pressing blocks move closer to or farther from each other under the action of the hydraulic cylinder.

[0052] By adopting the above technical scheme, the clamping and steering mechanism clamps the raw material rod and sends it into the center formed by the pressing blocks, and then the telescopic shaft of the hydraulic cylinder extends to make the pressing blocks close to each other in the shell, thereby squeezing the raw material rod to form a worm, and then the telescopic shaft of the hydraulic cylinder contracts to drive the pressing blocks to separate from each other and the worm, so that the worm can be taken out, and the forming effect is good, the material itself will not be damaged, and the worm has a high strength even if the thickness is thin.

[0053] The present invention is further configured as follows: a thread is provided on the inner side of the pressure block, the outer side is connected to the telescopic shaft of the hydraulic cylinder, the left and right sides are respectively arranged toward adjacent pressure blocks, an insert block is protruded on the left side of the pressure block, and a slot matching the insert block is provided on the right side of the pressure block.

[0054] By adopting the above technical solution, when the pressing blocks are approaching or moving away from each other, the insertion blocks and the slots cooperate with each other to guide them, so that the movement of the pressing blocks is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0056] Figure 1 It is a structural schematic diagram of the electrically operated opening and closing mechanism of the present invention;

[0057] Figure 2 The partial structure of the electric operation opening and closing mechanism of the present invention is shown in FIG. Figure 1 ;

[0058] Figure 3 The partial structure of the electric operation opening and closing mechanism of the present invention is shown in FIG. Figure 2 ;

[0059] Figure 4 It is a partial structural schematic diagram of the electrically operated opening and closing mechanism of the present invention;

[0060] Figure 5 The cross-sectional view of the connection structure between the drive motor and the worm in the present invention Figure 1 ;

[0061] Figure 6 The cross-sectional view of the connection structure between the drive motor and the worm in the present invention Figure 2 ;

[0062] Figure 7 The structure and operation diagram of the worm forming device of the present invention is shown in FIG. Figure 1 ;

[0063] Figure 8 The structure and operation diagram of the worm forming device of the present invention is shown in FIG. Figure 2 ;

[0064] Fig. 9 The structure and operation diagram of the worm forming device of the present invention is shown in FIG. Figure 3 ;

[0065] Fig.10 The structure and operation diagram of the worm forming device of the present invention is shown in FIG. Figure 4 ;

[0066] Fig.11 The structure and operation diagram of the worm forming device of the present invention is shown in FIG. Figure 5 ;

[0067] Fig.12 It is a partial structural schematic diagram of the clamping and steering mechanism of the present invention;

[0068] Fig.13 The schematic diagram of the partial structure and action of the clamping and steering mechanism of the present invention is shown in FIG. Figure 1 ;

[0069] Fig.14 The schematic diagram of the partial structure and action of the clamping and steering mechanism of the present invention is shown in FIG. Figure 2 ;

[0070] Fig.15 The schematic diagram of the partial structure and action of the clamping and steering mechanism of the present invention is shown in FIG. Figure 3 ;

[0071] Fig.16 It is a schematic diagram of the structure of the driving wheel in the present invention;

[0072] Fig.17 It is a schematic diagram of the structure of the briquette in the present invention;

[0073] Fig.18 It is a structural cross-sectional view of the circumferential hot pressing mechanism of the present invention (when separated);

[0074] Fig.19 It is a structural cross-sectional view of the circumferential hot pressing mechanism of the present invention (when close up). DETAILED DESCRIPTION

[0075] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0076] like Figure 1-Figure 19 As shown, the present invention discloses an electrically operated opening and closing mechanism, comprising:

[0077] A driving connecting wheel 1, wherein the driving connecting wheel 1 is connected to an operating handle 4 and a switch-on / off mechanism 5 through a long transmission rod 2 and a short transmission rod 3, respectively, and a first sector gear 10 is provided on the driving connecting wheel 1;

[0078] A driving motor 6, wherein a worm 61 is connected to an output shaft 60 of the driving motor 6;

[0079] A worm wheel 7, on one side of which a coaxial first secondary gear 70 is fixed;

[0080] A second main gear 8, on one side of which a coaxial second sub-gear 80 is fixed;

[0081] A third main gear 9, on one side of which a coaxial second sector gear 90 is fixed;

[0082] Among them, the driving connecting wheel 1 and the second main gear 8 are rotatably connected to the central shaft 11, the worm 61 is meshed with the worm wheel 7, the first sub-gear 70 is meshed with the second main gear 8, the second sub-gear 80 is meshed with the third main gear 9, and the second sector gear 90 is meshed with the first sector gear 10.

[0083] By adopting the above technical solution, when remote opening and closing action is required, the driving motor 6 runs through the worm 61 to drive the worm wheel 7 to rotate, and then drives the first sector gear 10 and the driving connecting wheel 1 to rotate through the first sub-gear 70, the second main gear 8, the second sub-gear 80, the third main gear 9, and the second sector gear 90 in sequence, thereby realizing remote opening and closing action, with a simple, compact structure and small size.

[0084] In an embodiment of the present invention, a transmission hole 610 is opened in one end of the worm 61, and the cross-section of the transmission hole 610 is set to be a polygon. The output shaft 60 of the drive motor 6 is set to a shape matching the transmission hole 610, and the output shaft 60 is inserted into the transmission hole 610 to be transmission-connected to the worm 61.

[0085] By adopting the above technical solution, the contact area between the output shaft 60 of the drive motor 6 and the worm 61 can be effectively increased, thereby improving the stability of the connection, making the transmission more stable, and effectively reducing the volume.

[0086] In the embodiment of the present invention, the cross section of the transmission hole 610 is set to be a triangle, and the three corners are set to be rounded.

[0087] By adopting the above technical solution, the connection between the transmission hole 610 and the output shaft 60 can be made more stable, and the output shaft 60 can be inserted into the transmission hole 610 more conveniently and easily.

[0088] A production process of an electrically operated opening and closing mechanism comprises the following steps:

[0089] S1: feeding the raw material rod into the electromagnetic heating mechanism to heat the middle part of the raw material rod to be formed;

[0090] S2: When the temperature of the heating position on the raw material rod reaches 900℃-1100℃, maintain it for 0-10 minutes;

[0091] S3: inserting the inner hole forming rod into the inner hole of the raw material rod through the worm forming device, taking the raw material rod out from the electromagnetic heating mechanism, and sending it into the circumferential hot pressing mechanism for forming;

[0092] S4: The outer wall of the raw material rod is formed with threads through the action of the circumferential hot pressing device, and the inner hole is formed into a shape matching the outer wall of the inner hole forming rod 1342;

[0093] S5: Maintaining in the circumferential hot pressing mechanism for 0-10 minutes to form a worm 61;

[0094] S6: After the preset time is reached, the worm 61 is taken out from the circumferential hot pressing mechanism;

[0095] S7: Cool to room temperature;

[0096] S8: The cooled worm 61 is subjected to quenching treatment.

[0097] By adopting the above technical solution, the outer wall of the raw material rod can be effectively hot-pressed into a thread, and the inner wall of the raw material rod can be extruded into a shape that matches the outer wall of the inner hole forming rod 1342, thereby reducing the processing steps, achieving better forming effects, and increasing strength, and being able to effectively process smaller raw material rods.

[0098] In an embodiment of the present invention, the worm forming device comprises:

[0099] A base 12, wherein a slide rail 120 is provided on the base 12, and a plurality of sets of sliders 121 are slidably connected to the slide rail 120, and a vertically arranged electromagnetic heating mechanism 122 is provided on the base 12;

[0100] A clamping and steering mechanism 13, wherein the clamping and steering mechanism 13 is used to clamp one end of the raw material rod and turn the raw material rod;

[0101] A circumferential hot pressing mechanism 14, which is used to circumferentially extrude the heated raw material rod;

[0102] A fixing fixture 15, the fixing fixture 15 is used to fix and clamp one end of the raw material rod passing through the circumferential hot pressing mechanism 14;

[0103] Among them, the clamping and steering mechanism 13 and the fixing fixture 15 are respectively slidably connected to the slide rail 120 through a group of sliders 121, the circumferential hot pressing mechanism 14 is fixedly installed on the base 12, the circumferential hot pressing mechanism 14 is located between the clamping and steering mechanism 13 and the fixing fixture 15, and the electromagnetic heating mechanism 122 is located below the moving path of the clamping and steering mechanism 13.

[0104] By adopting the above technical scheme, the raw material rod is first placed in the electromagnetic heating mechanism 122 for heating. After the heating is completed, the raw material rod is clamped by the clamping and steering mechanism 13 and taken out from the electromagnetic heating mechanism 122, and sent to the circumferential hot pressing mechanism 14. The raw material rod is extruded by the circumferential hot pressing mechanism 14 to form the external thread and the transmission hole 610 on the worm 61. After forming, the worm 61 is taken out from the circumferential hot pressing mechanism 14 and removed from the clamping and steering mechanism 13 to complete the processing. The conveying processing is automated and the production efficiency is high.

[0105] In an embodiment of the present invention, the clamping and steering mechanism 13 includes:

[0106] A plurality of columns 130 are vertically arranged on the slider 121 , a top plate 131 is arranged on the top of the column 130 , and a lifting cylinder 1310 is arranged on the top plate 131 ;

[0107] A slide plate 132, wherein the slide plate 132 is slidably connected to the column 130, and two first connecting plates 1320 are protruding from the lower side of the slide plate 132;

[0108] A driving wheel 133, the center of which is connected to a driving motor 1330, and the driving wheel 133 is provided with two guide grooves 1331, which are symmetrically arranged about the axis of the driving wheel 133, and the guide grooves 1331 are arranged in an arc shape, with one end close to the outer side of the driving wheel 133 and the other end close to the center of the driving wheel 133;

[0109] A limiting frame 134, both ends of the limiting frame 134 are downwardly protruding with a second connecting plate 1340, the second connecting plate 1340 is provided with a sliding groove 1341, and the lower side of the limiting frame 134 is fixedly connected with an inner hole forming rod 1342;

[0110] The clip 135 is provided with two clips 135, and the two ends of the clip 135 are respectively slidably connected to the two second connecting plates 1340, and the inner hole forming rod 1342 is located between the two clips 135, and one end of the two clips 135 passes through the second connecting plate 1340 on one side and extends to the two guide grooves 1331 for transmission connection;

[0111] Among them, the output shaft of the lifting cylinder 1310 is connected to the slide plate 132, the driving motor 1330 is fixedly installed on the first connecting plate 1320, the limit frame 134 is located between the two first connecting plates 1320, and the second connecting plate 1340 on one side is rotatably connected to the first connecting plate 1320 through the connecting shaft 1343.

[0112] By adopting the above technical solution, the slider 121 can drive the clamping and steering mechanism 13 to move horizontally. When the clamping and steering mechanism 13 moves to the top of the electromagnetic heating mechanism 122, the lifting cylinder 1310 drives the slide plate 132 to move downward, so that the inner hole forming rod 1342 on the limit frame 134 is inserted into the raw material rod in the electromagnetic heating mechanism 122. At the same time, the two clamps 135 are located on both sides of the upper end of the raw material rod, and then the driving motor 1330 drives the driving wheel 133 to rotate forward 90°, so that the clamps 135 are close to each other under the action of the guide groove 1331 to clamp the upper end of the raw material rod, and then the lifting cylinder 1310 drives the slide plate 132 to move downward, so that the inner hole forming rod 1342 on the limit frame 134 is inserted into the raw material rod in the electromagnetic heating mechanism 122. At the same time, the two clamps 135 are located on both sides of the upper end of the raw material rod. The lowering cylinder 1310 drives the slide plate 132 to move upward, and takes the raw material rod out of the electromagnetic heating mechanism 122. Then the driving motor 1330 drives the driving wheel 133 to continue to rotate forward 90°, thereby driving the limit frame 134 to rotate forward 90°, so that the raw material rod rotates from a vertical state to a horizontal state. Then the slider 121 drives the clamping and steering mechanism 13 to approach the circumferential hot pressing mechanism 14 so that the raw material rod is inserted into the circumferential hot pressing mechanism 14 and processed by the circumferential hot pressing mechanism 14. The raw material rod can be clamped and flipped by a driving motor 1330, and the structure is simple and convenient.

[0113] In the embodiment of the present invention, the guide groove 1331 includes a first endpoint 13310 and a second endpoint 13311, the second endpoint 13311 is closer to the axis of the driving wheel 133 than the first endpoint 13310, when one end of the clip 135 is located at the first endpoint 13310, the two clips 135 are in a loose state, and when one end of the clip 135 is located at the second endpoint 13311, the two clips 135 are in a clamped state, the first endpoint 13310 and the second endpoint 13311 are perpendicular to the connecting line of the axis of the driving wheel 133; the inner side of the first connecting plate 1320 is protruded with a first limit block 1321 and a second limit block 1322, when the first limit block 1321 and the second limit block 1322 are used to limit the rotation angle of the limit frame 134.

[0114] By adopting the above technical solution, when the clamp 135 needs to clamp the raw material rod, the end of the clamp 135 moves from the first end point 13310 to the second end point 13311, so that the clamps 135 in the two guide grooves 1331 gradually approach the axis of the driving wheel 133, so that the two clamps 135 gradually approach each other to achieve clamping, and when the end of the clamp 135 reaches the second end point 13311, the driving wheel 133 continues to rotate and can drive the limit frame 134 to rotate through the clamp 135, thereby realizing the flipping of the raw material rod; the first limit block 1321 can effectively limit the position of the limit frame 134 when the raw material rod is in a vertical state, and the second limit block 1322 can effectively limit the position of the limit frame 134 when the raw material rod is in a horizontal state, so that the angle of rotation of the limit frame 134 is maintained at 90° each time, which is more accurate and stable.

[0115] In the embodiment of the present invention, a torsion spring is provided on the connecting shaft 1343, and the two ends of the torsion spring are respectively connected to the first connecting plate 1320 and the second connecting plate 1340, and the middle part of the clip 135 is set to be an arc shape matching the outer wall of one end of the raw material rod.

[0116] By adopting the above technical solution, when no external force is applied, the torsion spring causes the limit frame 134 to be pressed against the first limit block 1321, thereby keeping the inner hole forming rod 1342 in a vertical state; therefore, when the driving wheel 133 rotates forward, it will first drive the two clamping pieces 135 to approach each other, while the limit frame 134 remains stationary. When the two clamping pieces 135 clamp the raw material rod and cannot move further closer, the driving wheel 133 will overcome the elastic force of the torsion spring through the action of the clamping piece 135 to drive the limit frame 134 to rotate, thereby causing the clamping piece 135 to flip to a horizontal state while clamping the raw material rod; when the driving motor 1330 is reversed, the limit frame 134 will be reset first under the action of the torsion spring, while the two clamping pieces 135 remain in a clamped state. Only when the limit frame 134 is reset in place can the two clamping pieces 135 be driven to separate; the torsion spring can ensure the sequence of actions.

[0117] In an embodiment of the present invention, the circumferential hot pressing mechanism 14 includes:

[0118] A housing 140, wherein the housing 140 is fixedly mounted on the base 12, and two ends of the housing 140 are connected through the housing 140, and the two ends of the housing 140 are respectively arranged toward the clamping and steering mechanism 13 and the fixing fixture 15;

[0119] A pressure block 141, wherein the pressure block 141 is disposed in the housing 140 and is arranged in a plurality, the pressure blocks 141 are arranged in a circular circumferential direction around the central axis of the housing 140, and the inner wall of the pressure block 141 corresponds to the thread on the outer wall of the worm 61;

[0120] A hydraulic cylinder 142, wherein the hydraulic cylinder 142 is fixed to the housing 140 and the telescopic shaft is connected to the outer side of the pressing block 141;

[0121] The raw material rod extends between the pressing blocks 141 and passes through one end of the housing 140 and extends toward the fixing fixture 15 . The pressing blocks 141 move closer to or farther from each other under the action of the hydraulic cylinder 142 .

[0122] By adopting the above technical solution, the clamping and steering mechanism 13 clamps the raw material rod and sends it into the center formed around the pressing block 141, and then the telescopic shaft of the hydraulic cylinder 142 extends to make the pressing blocks 141 close to each other in the shell 140, thereby squeezing the raw material rod to form a worm 61, and then the telescopic shaft of the hydraulic cylinder 142 contracts to drive the pressing blocks 141 to separate from each other and the worm 61, so that the worm 61 can be taken out, and the molding effect is good, and the material itself will not be damaged, so that the worm 61 still has a high strength even if the thickness is thin.

[0123] In the embodiment of the present invention, a thread is provided on the inner side of the pressure block 141, and the outer side is connected to the telescopic shaft of the hydraulic cylinder 142. The left and right sides are respectively arranged toward the adjacent pressure blocks 141. An insert block 1410 is protruded from the left side of the pressure block 141, and a slot 1411 matching the insert block 1410 is provided on the right side of the pressure block 141.

[0124] By adopting the above technical solution, when the pressing blocks 141 are approaching or moving away from each other, the insertion block 1410 and the slot 1411 cooperate with each other to guide, so that the movement of the pressing blocks 141 is more stable.

[0125] 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, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electrically operated opening and closing mechanism, characterized in that: include, A driving connecting wheel (1), the driving connecting wheel (1) being connected to an operating handle (4) and a switch-on / off mechanism (5) respectively through a long transmission rod (2) and a short transmission rod (3), and the driving connecting wheel (1) being provided with a first sector gear (10); A drive motor (6), wherein an output shaft (60) of the drive motor (6) is connected to a worm (61); A worm wheel (7), a first secondary gear (70) coaxially fixed to one side of the worm wheel (7); A second main gear (8), a coaxial second sub-gear (80) being fixed on one side of the second main gear (8); A third main gear (9), a coaxial second sector gear (90) being fixed on one side of the third main gear (9); The driving connecting wheel (1) and the second main gear (8) are rotatably connected to the central shaft (11), the worm (61) is meshed with the worm wheel (7), the first sub-gear (70) is meshed with the second main gear (8), the second sub-gear (80) is meshed with the third main gear (9), and the second sector gear (90) is meshed with the first sector gear (10).

2. The electrically operated opening and closing mechanism according to claim 1, characterized in that: A transmission hole (610) is provided in one end of the worm (61), the cross section of the transmission hole (610) is set to be polygonal, the output shaft (60) of the drive motor (6) is set to be in a shape matching the transmission hole (610), and the output shaft (60) is inserted into the transmission hole (610) and is transmission-connected with the worm (61).

3. The electrically operated opening and closing mechanism according to claim 1, characterized in that: The cross section of the transmission hole (610) is set to be triangular, and the three corners are set to be rounded.

4. A production process for the electrically operated opening and closing mechanism according to any one of claims 1 to 3, characterized in that: The steps include: S1: feeding the raw material rod into the electromagnetic heating mechanism to heat the middle part of the raw material rod to be formed; S2: When the temperature of the heating position on the raw material rod reaches 900℃-1100℃, maintain it for 0-10 minutes; S3: inserting the inner hole forming rod into the inner hole of the raw material rod through the worm forming device, taking the raw material rod out from the electromagnetic heating mechanism, and sending it into the circumferential hot pressing mechanism for forming; S4: forming threads on the outer wall of the raw material rod and forming the inner hole into a shape matching the outer wall of the inner hole forming rod (1342) through the action of the circumferential hot pressing device; S5: maintaining in the circumferential hot pressing mechanism for 0-10 minutes to form a worm (61); S6: After the preset time is reached, the worm (61) is taken out from the circumferential hot pressing mechanism; S7: Cool to room temperature; S8: The cooled worm (61) is subjected to quenching treatment.

5. The production process of the electrically operated opening and closing mechanism according to claim 4, characterized in that: The worm forming device comprises: A base (12), wherein a slide rail (120) is provided on the base (12), a plurality of groups of sliders (121) are slidably connected to the slide rail (120), and a vertically arranged electromagnetic heating mechanism (122) is provided on the base (12); A clamping and steering mechanism (13), wherein the clamping and steering mechanism (13) is used to clamp one end of the raw material rod and turn the raw material rod over; A circumferential hot pressing mechanism (14), wherein the circumferential hot pressing mechanism (14) is used to circumferentially press the heated raw material rod; A fixing fixture (15), the fixing fixture (15) being used to fix and clamp one end of the raw material rod passing through the circumferential hot pressing mechanism (14); The clamping and steering mechanism (13) and the fixing fixture (15) are respectively slidably connected to the slide rail (120) through a group of sliders (121); the circumferential hot pressing mechanism (14) is fixedly installed on the base (12); the circumferential hot pressing mechanism (14) is located between the clamping and steering mechanism (13) and the fixing fixture (15); and the electromagnetic heating mechanism (122) is located below the moving path of the clamping and steering mechanism (13).

6. The production process of the electrically operated opening and closing mechanism according to claim 5, characterized in that: The clamping and steering mechanism (13) comprises: A plurality of columns (130) are arranged vertically on the slider (121), a top plate (131) is arranged on the top of each column (130), and a lifting cylinder (1310) is arranged on the top plate (131); A slide plate (132), the slide plate (132) being slidably connected to the column (130), and two first connecting plates (1320) being protruding from the lower side of the slide plate (132); A driving wheel (133), wherein a driving motor (1330) is connected to the center of the driving wheel (133), and two guide grooves (1331) are provided on the driving wheel (133), and the two guide grooves (1331) are symmetrically arranged about the axis of the driving wheel (133), and the guide groove (1331) is arranged in an arc shape, with one end close to the outer side of the driving wheel (133) and the other end close to the center of the driving wheel (133); A limiting frame (134), wherein both ends of the limiting frame (134) are provided with a second connecting plate (1340) protruding downwards, a sliding groove (1341) is provided on the second connecting plate (1340), and an inner hole forming rod (1342) is fixedly connected to the lower side of the limiting frame (134); A clip (135), wherein two clips (135) are provided, and two ends of the clip (135) are respectively slidably connected to the two second connecting plates (1340), the inner hole forming rod (1342) is located between the two clips (135), and one end of the two clips (135) passes through the second connecting plate (1340) on one side and respectively extends to the two guide grooves (1331) for transmission connection; The output shaft of the lifting cylinder (1310) is connected to the slide plate (132), the driving motor (1330) is fixedly mounted on the first connecting plate (1320), the limiting frame (134) is located between the two first connecting plates (1320), and the second connecting plate (1340) on one side is rotatably connected to the first connecting plate (1320) via a connecting shaft (1343).

7. The production process of the electrically operated opening and closing mechanism according to claim 6, characterized in that: The guide groove (1331) comprises a first end point (13310) and a second end point (13311), the second end point (13311) being closer to the axis of the driving wheel (133) than the first end point (13310), when one end of the clip (135) is located at the first end point (13310), the two clips (135) are in a loose state, and when one end of the clip (135) is located at the second end point (13311), the two clips (135) are in a clamped state, the first end point (13310) and the second end point (13311) are perpendicular to a connecting line of the axis of the driving wheel (133); a first limiting block (1321) and a second limiting block (1322) are protruding from the inner side of the first connecting plate (1320), and the first limiting block (1321) and the second limiting block (1322) are used to limit the rotation angle of the limiting frame (134).

8. The production process of the electrically operated opening and closing mechanism according to claim 6, characterized in that: The connecting shaft (1343) is provided with a torsion spring, the two ends of which are respectively connected to the first connecting plate (1320) and the second connecting plate (1340), and the middle portion of the clip (135) is configured to be an arc shape matching the outer wall of one end of the raw material rod.

9. The production process of the electrically operated opening and closing mechanism according to claim 5, characterized in that: The circumferential hot pressing mechanism (14) comprises: A shell (140), wherein the shell (140) is fixedly mounted on the base (12), and two ends of the shell (140) are connected through the shell (140), and the two ends of the shell (140) are respectively arranged toward the clamping and steering mechanism (13) and the fixing fixture (15); A pressure block (141), wherein the pressure block (141) is disposed in the housing (140) and is arranged in a plurality, the pressure blocks (141) are arranged in a circular circumferential direction around the central axis of the housing (140), and the inner wall of the pressure block (141) corresponds to the thread on the outer wall of the worm (61); A hydraulic cylinder (142), wherein the hydraulic cylinder (142) is fixed on the housing (140) and the telescopic shaft is connected to the outer side of the pressing block (141); The raw material rod extends between the pressing blocks (141) and passes through one end of the housing (140) to extend toward the fixing fixture (15), and the pressing blocks (141) move closer to or farther from each other under the action of the hydraulic cylinder (142).

10. The production process of the electrically operated opening and closing mechanism according to claim 9, characterized in that: The inner side of the pressing block (141) is provided with a thread, and the outer side is connected to the telescopic shaft of the hydraulic cylinder (142). The left and right sides are respectively arranged toward the adjacent pressing blocks (141). The left side of the pressing block (141) is provided with an insert block (1410) protruding from the left side, and the right side of the pressing block (141) is provided with a slot (1411) matching the insert block (1410).

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