A silver oxide, tin oxide, indium oxide electrical contact and its production process

Abstract

The present invention discloses a silver-tin-oxide-indium-oxide electrical contact and a production process thereof, and belongs to the technical field of electrical contacts. The electrical contact is composed of a metal-based composite material with silver as a matrix and tin oxide and indium oxide as a reinforcing phase, and its production process includes: a: formula smelting; b: atomization; c: internal oxidation of powder; d: isostatic pressing; e: sintering; f: hot extrusion sheet; g: rolling; h: stamping; i: post-processing. The silver-tin-oxide-indium-oxide electrical contact combines the advantages of silver-based electrical contacts with tin oxide and indium oxide materials to form a metal-based composite material with silver as a matrix and metal oxide as a reinforcing phase, and has excellent electrical properties such as resistance to arc erosion, wear resistance, and resistance to melting and welding, and has a long service life. In practice, it can be opened and closed 1 million times without damage, and has great application value and economic value.

Description

Technical Field

[0001] The invention relates to the technical field of electrical contacts and processing, and in particular to a silver tin oxide indium oxide electrical contact and a production process thereof. Background Art

[0002] Electrical contacts are one of the key components of switchgear. The main performance and life of switchgear depend to a large extent on the quality of contact materials. Contact materials are usually required to have good conductivity, low contact resistance, high resistance to welding, high resistance to arc erosion and resistance to material transfer. Therefore, the production process of electrical contacts is extremely important.

[0003] In the prior art, silver cadmium oxide material occupies an important position in the entire low-voltage electrical contact material system due to its excellent electrical properties such as excellent arc extinguishing performance and resistance to melting welding, and is known as the "universal contact". For example, Chinese invention patent CN201511009074 discloses a method for preparing a silver cadmium oxide sheet electrical contact containing additives, which is specifically as follows: the required amounts of silver, cadmium and additives are calculated according to the material ratio of the silver cadmium oxide electrical contact to be prepared, and weighed for use; silver, cadmium and additives are continuously smelted into a AgCd alloy melt, and the AgCd alloy melt is upwardly casted into an AgCd alloy strip by an upward continuous casting method; pure Ag strip and the obtained AgCd alloy strip are sent into a tubular resistance furnace for heating, and then sent into a rolling roller for hot rolling and compounding to obtain an AgCd / Ag composite strip; the obtained AgCd / Ag composite strip is annealed, rolled, stamped, and then internally oxidized to obtain the AgCd / Ag composite strip; wherein the heating process of the AgCd / Ag alloy strip and the pure Ag strip in the tubular resistance furnace and the process after the process until the strip is sent into the rolling roller are all carried out under a protective atmosphere. However, silver cadmium oxide materials contain heavy metal cadmium, which is harmful to the human body and the environment. In addition, there is cadmium pollution in the preparation, use and recycling of the materials. It is not environmentally friendly and does not meet the needs of existing green production and processing.

[0004] Moreover, in the existing production process of electrical contacts, the process flow and parameters directly affect the size and morphology of the oxide. The properties of the electrical contact material depend to a large extent on the selection of the oxidation treatment process and process parameters. In addition, when the pre-formed contacts need to be post-processed, burr removal is required. The existing burr removal device cannot effectively remove burrs from the overlapping clamping parts when removing burrs from the clamped electrical contacts, resulting in insufficient burr removal, affecting the forming of the electrical contacts. It is not conducive to simultaneous burr removal from multiple angles, further resulting in insufficient burr removal, thereby reducing the efficiency of burr removal and increasing the overall work process. The efficiency is low and does not meet the needs of existing efficiency-enhancing processing.

[0005] The present invention aims at at least one problem existing in the above-mentioned prior art, and proposes a silver oxide tin oxide indium oxide electrical contact and a production process thereof. Summary of the invention

[0006] The object of the present invention is to provide a silver tin oxide indium oxide electrical contact and a production process thereof, so as to solve the problems that the heavy metal cadmium in the electrical contact material in the prior art mentioned above is harmful to the human body, the production process of the electrical contact is unclear, and when the pre-formed contact needs to be post-processed, burrs need to be removed. When the existing burr removal device removes the burrs from the clamped electrical contact, the overlapping clamping parts cannot be effectively removed, so that the burr removal is not thorough enough, which affects the forming work of the electrical contact, and is not conducive to the simultaneous burr removal work at multiple angles, which further leads to the problem that the burr removal is not thorough enough, thereby reducing the efficiency of the burr removal work and increasing the overall work process.

[0007] To achieve the above object, the present invention provides the following technical solution: a silver tin oxide indium oxide electrical contact, wherein the electrical contact is a metal matrix composite material with silver as a matrix and tin oxide and indium oxide as a reinforcement phase; the material composition and mass percentage content are:

[0008] Silver: 85-92%;

[0009] Tin: 5-10%;

[0010] Indium: 3-5%;

[0011] Zinc: 0.2-0.5%;

[0012] Nickel: 0.2-0.5%;

[0013] Bismuth: 0.1-0.2%.

[0014] The present invention also provides a production process of silver oxide tin oxide indium oxide electrical contacts, comprising the following steps:

[0015] a: Recipe smelting

[0016] Weigh appropriate amounts of silver ingots, tin ingots, indium ingots, zinc powder, nickel powder and bismuth powder respectively and put them into an induction melting furnace for smelting at a temperature not less than 1000°C for 20 minutes;

[0017] b: Atomization

[0018] placing the smelted material in step a) into a water flow mechanical atomizer to crush the molten metal flow into droplets, and then allowing the droplets to stand and condense to obtain powder;

[0019] c: Powder internal oxidation

[0020] The atomized powder obtained in step b is placed in an oxidizer for oxidation;

[0021] d: Isostatic pressing

[0022] Placing the oxidized powder in step c into an isostatic pressing machine, and controlling the pressure at 150-200 MPa;

[0023] e: Sintering

[0024] Placing the powder formed in step d into a sintering machine for sintering, so that the powder is transformed from a particle aggregate into a metal matrix composite to obtain a blank;

[0025] f: hot extrusion sheet

[0026] The blank obtained in step e is placed in an extrusion barrel, and external force is applied to make it flow out from a specific die hole to obtain the desired cross-sectional shape and size;

[0027] g: rolling

[0028] The extruded billet is rolled, and the cross section of the billet is reduced and the length is increased through compression by the rotating rollers;

[0029] h: Stamping

[0030] The rolled blank is placed in a stamping die for stamping to obtain a preformed contact;

[0031] i: Post-processing

[0032] The obtained preformed contact is respectively subjected to burr removal, oil removal and bubble removal operations by a burr removal device, an oil removal machine and an air bubble removal machine to obtain the silver oxide tin oxide indium oxide electrical contact.

[0033] Among them, the deburring device described in process i includes a frame and a motor, the top surface of the frame is provided with a motor, and the bottom surface of the motor is key-connected with a movable block, a reciprocating screw is provided inside one end of the movable block, and the surface of the reciprocating screw is sleeved with a first deburring mechanism, and the lower end shaft of the reciprocating screw is connected with a planetary gear, a connecting line is fixed to the top of the first deburring mechanism, a support rod is fixed to the top of the movable block, and the surface of the support rod is respectively sleeved with a second deburring mechanism and a reset spring, one end of the planetary gear is meshed with a sun gear, and the sun gear is rotatably connected to the lower end inner wall of the frame through an axis, a rocker is provided on the top surface of the sun gear, and the rocker The other end of the transmission device is connected to a connecting wheel, the top surface key of the connecting wheel is connected to a connecting shaft, and the surface of one end of the connecting shaft extending into the fixed block is sleeved with a transmission device, and the top of the fixed block is fixedly connected to the inner wall of the upper end of the frame, the other end of the transmission device is connected to the first support shaft, and the surface of the first support shaft is sleeved with a driving gear, one end of the driving gear is meshed and connected with a driven gear, and the center key of the driven gear is connected to the second support shaft, the end of the second support shaft extending into the clamping block is meshed and connected with a belt, and a protrusion is provided on the surface of the belt, one end of the clamping block is rotatably connected to the top surface of the fixed block through a limiting shaft, and a volute spring is sleeved on the surface of the limiting shaft.

[0034] Preferably, the movable block has an "L"-shaped structure when viewed from the front, and the first deburring mechanism forms a sliding structure with the movable block through the reciprocating screw rod, and the second deburring mechanism forms a telescopic structure with the movable block through the reset spring.

[0035] Preferably, the first deburring mechanism includes a fixed rod, a coil spring, a limit block, a connecting rod and a scraper. A coil spring is arranged inside the fixed rod, and one end of the coil spring is connected to the limit block. A connecting rod is integrally installed on one side of the limit block, and the end of the connecting rod extending outside the fixed rod is connected to the scraper. The internal structure of the first deburring mechanism is consistent with the internal structure of the second deburring mechanism.

[0036] Preferably, the connecting wheel forms a linkage structure with the sun gear through a rocker, and the connecting wheel is inclined when viewed from above.

[0037] Preferably, the driven gears are symmetrically distributed about a transverse center line of the driving gear, and the diameter of the driving gear is greater than the diameter of the driven gear.

[0038] Preferably, the clamping blocks are arc-shaped in a top view, and are symmetrically distributed about the longitudinal center line of the fixed block, and slots are formed between the clamping blocks. At the same time, the clamping blocks form a rotating structure with the fixed block through a spiral spring.

[0039] Preferably, the bumps are made of elastic rubber material, and the bumps are distributed at equal angles on the surface of the belt.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. In the present invention, a metal-based composite material with silver as the matrix and tin oxide and indium oxide as the reinforcement phase is adopted, which abandons the heavy metal cadmium silver cadmium oxide electrical contacts in the prior art and has excellent resistance to arc erosion, wear resistance and melting welding.

[0042] 2. In the present invention, by optimizing the preparation process, through formula melting - atomization - powder internal oxidation - isostatic pressing - sintering - hot extrusion sheet - rolling - stamping - post-treatment, the prepared silver tin oxide silver oxide electrical contact can actually be opened and closed 1 million times without damage, and has an ultra-long service life.

[0043] 3. In the present invention, when the motor drives the planetary gear to rotate through the movable block, the meshing action of the sun gear and the planetary gear causes the planetary gear to rotate around the sun gear and rotate on its own, while driving the sun gear to rotate on its own, so that the reciprocating screw drives the first deburring mechanism to slide up and down while rotating, and at the same time drives the second deburring mechanism to slide while rotating through the connecting line, thereby facilitating multi-directional deburring of electrical contacts and improving overall work efficiency.

[0044] 4. In the present invention, when the sun gear rotates, the connecting wheel is driven to rotate through the inclined rocker, so that the connecting wheel drives the driving gear to rotate through the connecting shaft and the transmission device, which is beneficial for the driving gear to drive the belt to rotate through the driven gear. The electrical contact is pressed tightly by the protrusion, so that the belt rotation drives the electrical contact to rotate, which is beneficial to speed up the efficiency of deburring the electrical contact and avoids the phenomenon that the burrs cannot be effectively removed at the clamping overlapped parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0046] Figure 2 It is a schematic diagram of the top view of the connection structure between the belt and the protrusion of the present invention;

[0047] Figure 3 This is a schematic diagram of the front view connection structure between the first support shaft and the driving gear of the present invention;

[0048] Figure 4 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0049] Figure 5 It is a schematic diagram of the top view of the connection structure between the sun gear and the rocker of the present invention;

[0050] Figure 6 It is a schematic diagram of the internal cross-sectional structure of the first deburring mechanism of the present invention;

[0051] Figure 7 It is a schematic diagram of the top view of the connection structure between the driving gear and the driven gear of the present invention.

[0052] In the figure: 1, frame; 2, motor; 3, movable block; 4, reciprocating screw; 5, first deburring mechanism; 501, fixed rod; 502, spiral spring; 503, limit block; 504, connecting rod; 505, scraper; 6, planetary gear; 7, connecting line; 8, support rod; 9, second deburring mechanism; 10, reset spring; 11, sun gear; 12, rocker; 13, connecting wheel; 14, connecting shaft; 15, fixed block; 16, transmission device; 17, first supporting shaft; 18, driving gear; 19, driven gear; 20, second supporting shaft; 21, clamping block; 22, belt; 23, bump; 24, limit shaft; 25, scroll spring. DETAILED DESCRIPTION

[0053] 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.

[0054] Embodiment 1:

[0055] This embodiment discloses a silver tin oxide indium oxide electrical contact, which is a metal matrix composite material with silver as a matrix and tin oxide and indium oxide as a reinforcement phase; its material composition and mass percentage content are:

[0056] Silver: 85-92%;

[0057] Tin: 5-10%;

[0058] Indium: 3-5%;

[0059] Zinc: 0.2-0.5%;

[0060] Nickel: 0.2-0.5%;

[0061] Bismuth: 0.1-0.2%.

[0062] Embodiment 2:

[0063] This embodiment discloses a production process of silver oxide, tin oxide and indium oxide electrical contacts, comprising the following steps:

[0064] a: Recipe smelting

[0065] Weigh appropriate amounts of silver ingots, tin ingots, indium ingots, zinc powder, nickel powder and bismuth powder respectively and put them into an induction melting furnace for smelting at a temperature not less than 1000°C for 20 minutes;

[0066] b: Atomization

[0067] placing the smelted material in step a) into a water flow mechanical atomizer to crush the molten metal flow into droplets, and then allowing the droplets to stand and condense to obtain powder;

[0068] c: Powder internal oxidation

[0069] The atomized powder obtained in step b is placed in an oxidizer for oxidation;

[0070] d: Isostatic pressing

[0071] Placing the oxidized powder in step c into an isostatic pressing machine, and controlling the pressure at 150-200 MPa;

[0072] e: Sintering

[0073] Placing the powder formed in step d into a sintering machine for sintering, so that the powder is transformed from a particle aggregate into a metal matrix composite to obtain a blank;

[0074] f: hot extrusion sheet

[0075] The blank obtained in step e is placed in an extrusion barrel, and external force is applied to make it flow out from a specific die hole to obtain the desired cross-sectional shape and size;

[0076] g: rolling

[0077] The extruded billet is rolled, and the cross section of the billet is reduced and the length is increased through compression by the rotating rollers;

[0078] h: Stamping

[0079] The rolled blank is placed in a stamping die for stamping to obtain a preformed contact;

[0080] i: Post-processing

[0081] The obtained preformed contact is respectively subjected to burr removal, oil removal and bubble removal operations by a burr removal device, an oil removal machine and an air bubble removal machine to obtain the silver oxide tin oxide indium oxide electrical contact.

[0082] Among them, participating in Figure 1-7The deburring device in step i comprises a frame 1 and a motor 2, the motor 2 is arranged on the top surface of the frame 1, and the bottom surface of the motor 2 is key-connected with a movable block 3, a reciprocating screw 4 is arranged inside one end of the movable block 3, and a first deburring mechanism 5 is sleeved on the surface of the reciprocating screw 4, and a planetary gear 6 is connected to the lower end shaft of the reciprocating screw 4, a connecting line 7 is fixed to the top of the first deburring mechanism 5, a supporting rod 8 is fixed to the top of the movable block 3, and a second deburring mechanism 9 and a reset spring 10 are sleeved on the surface of the supporting rod 8, a sun gear 11 is meshed at one end of the planetary gear 6, and the sun gear 11 is rotatably connected to the inner wall of the lower end of the frame 1 through an axis, a rocker 12 is arranged on the top surface of the sun gear 11, and the other end of the rocker 12 is connected to a connecting wheel 13 The top surface key of the connecting wheel 13 is connected to the connecting shaft 14, and the surface of one end of the connecting shaft 14 extending into the interior of the fixed block 15 is sleeved with a transmission device 16, and the top of the fixed block 15 is fixedly connected to the inner wall of the upper end of the frame 1, and the other end of the transmission device 16 is connected to the first support shaft 17, and the surface of the first support shaft 17 is sleeved with a driving gear 18, one end of the driving gear 18 is meshedly connected with a driven gear 19, and the center key of the driven gear 19 is connected to the second support shaft 20, one end of the second support shaft 20 extending into the interior of the clamping block 21 is meshedly connected with a belt 22, and a protrusion 23 is provided on the surface of the belt 22, one end of the clamping block 21 is rotatably connected to the top surface of the fixed block 15 through a limiting shaft 24, and a volute spring 25 is sleeved on the surface of the limiting shaft 24.

[0083] The movable block 3 is an "L"-shaped structure when viewed from the front, and the first deburring mechanism 5 forms a sliding structure with the movable block 3 through the reciprocating screw 4, and the second deburring mechanism 9 forms a telescopic structure with the movable block 3 through the reset spring 10, which facilitates the first deburring mechanism 5 and the second deburring mechanism 9 to rotate and remove burrs when the movable block 3 rotates. At the same time, the sliding of the first deburring mechanism 5 and the second deburring mechanism 9 is conducive to multi-directional burr removal, thereby improving the overall work efficiency.

[0084] The first deburring mechanism 5 includes a fixed rod 501, a coil spring 502, a limit block 503, a connecting rod 504 and a scraper 505. The fixed rod 501 is provided with a coil spring 502, and one end of the coil spring 502 is connected to the limit block 503. A connecting rod 504 is integrally installed on one side of the limit block 503, and the end of the connecting rod 504 extending out of the fixed rod 501 is connected to the scraper 505. The internal structure of the first deburring mechanism 5 is consistent with the internal structure of the second deburring mechanism 9, which facilitates the elastic action of the coil spring 502, so that the limit block 503 pushes the scraper 505 to press against the surface of the electrical contact through the connecting rod 504, which is beneficial to deburring electrical contacts of various specifications and improves the applicability of the overall device.

[0085] The connecting wheel 13 forms a linkage structure with the sun gear 11 through the rocker 12, and the connecting wheel 13 is tilted when viewed from above, which facilitates the rocker 12 to drive the connecting wheel 13 and the sun gear 11 to rotate in opposite directions when the sun gear 11 rotates.

[0086] The driven gear 19 is symmetrically distributed about the transverse center line of the driving gear 18, and the diameter of the driving gear 18 is larger than that of the driven gear 19, which facilitates the driven gears 19 to rotate in the same direction when the driving gear 18 rotates, and is also beneficial to increasing the rotation speed of the driven gear 19.

[0087] The clamping block 21 is arc-shaped when viewed from above, and is symmetrically distributed about the longitudinal center line of the fixed block 15, and slots are formed between the clamping blocks 21. At the same time, the clamping block 21 forms a rotating structure with the fixed block 15 through the volute spring 25. Under the elastic action of the volute spring 25, the volute spring 25 drives the clamping block 21 to reset and rotate, which facilitates the work of the clamping block 21 to clamp and position the electrical contacts.

[0088] The bumps 23 are made of elastic rubber and are distributed at equal angles on the surface of the belt 22, which facilitates the self-rotation of the electrical contacts by the bumps 23 when the belt 22 rotates, thereby improving the efficiency of deburring the electrical contacts and avoiding the phenomenon that the burrs cannot be removed at the overlapping parts of the electrical contacts.

[0089] The working principle of this embodiment: Figure 1-2 and Figure 6First, the staff puts the frame 1 in a suitable position, and then puts the electrical contact between the clamping blocks 21. Under the elastic action of the volute spring 25, the clamping block 21 clamps and positions the electrical contact. Then the staff connects the motor 2 to an external power source and starts it, so that the motor 2 drives the movable block 3 to rotate. When the movable block 3 rotates, it drives the planetary gear 6 to rotate. Through the meshing of the sun gear 11 and the planetary gear 6, the planetary gear 6 rotates around the sun gear 11 while rotating, and drives the sun gear 11 to rotate. When the planetary gear 6 rotates, it drives the reciprocating screw 4 to rotate, so that the reciprocating screw 4 drives the first deburring mechanism 5 to slide back and forth, and the first deburring mechanism 5 slides up When the first deburring mechanism 5 slides down, the connecting wire 7 is loosened, so that the reset spring 10 operates, which facilitates the reset spring 10 to push the second deburring mechanism 9 to reset and slide. When the first deburring mechanism 5 slides down, the second deburring mechanism 9 is driven to slide through the connecting wire 7, and the second deburring mechanism 9 squeezes the reset spring 10 to shrink and deform. Under the elastic action of the spiral spring 502 inside the first deburring mechanism 5 and the second deburring mechanism 9, the limit block 503 pushes the scraper 505 to contact the surface of the electrical contact through the connecting rod 504, which facilitates the work of removing burrs from electrical contacts of various specifications, and at the same time facilitates the work of removing burrs from electrical contacts at multiple angles, thereby improving the overall applicability and practicality.

[0090] according to Figure 1-5 and Figure 7 When the sun gear 11 rotates, the connecting wheel 13 is driven to rotate in the opposite direction through the rocker 12, so that the connecting wheel 13 drives the transmission device 16 in the fixed block 15 to operate through the connecting shaft 14, so that the transmission device 16 drives the driving gear 18 to rotate through the first support shaft 17, and then the driving gear 18 drives the driven gear 19 to rotate. When the driven gear 19 rotates, it drives the belt 22 to rotate through the second support shaft 20, so that the belt 22 drives the electrical contact to rotate through the protrusion 23. At this time, the electrical contact and the first deburring mechanism 5 rotate in the opposite direction, which is beneficial to speed up the efficiency of deburring the electrical contact, and at the same time, it is beneficial to remove the burrs at the overlap between the electrical contact and the clamping block 21, which improves the thoroughness of burr removal to a certain extent. The motor 2 and the transmission device 16 are known and existing technologies on the market and are not described in detail here.

[0091] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0092] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A burr removal device in the production process of silver oxide, tin oxide and indium oxide electrical contacts, characterized in that: The process comprises the following steps: a: formula smelting, respectively weighing appropriate amounts of silver ingots, tin ingots, indium ingots, zinc powder, nickel powder and bismuth powder and putting them into an induction smelting furnace for smelting, the smelting temperature is not less than 1000°C, and refining for 20 minutes; b: atomization, placing the smelted material in step a) into a water flow mechanical atomizer, crushing the molten metal flow into droplets, and condensing the droplets to obtain powder; c: internal oxidation of the powder, placing the atomized powder obtained in step b in an oxidizer for oxidation; d: isostatic pressing, placing the powder oxidized in step c into an isostatic pressing machine, and controlling the pressure at 150-200 MPa; e: sintering, placing the powder formed in step d into a sintering machine for sintering, so that the powder is transformed from a particle aggregate into a metal matrix composite to obtain a blank; f: hot extrusion sheet, the blank obtained in step e is placed in an extrusion barrel, and external force is applied to make it flow out from a specific die hole to obtain the desired cross-sectional shape and size; g: Rolling: rolling the extruded billet, and through the compression of the rotating roller, the cross section of the billet is reduced and the length is increased; h: stamping, placing the rolled blank in a stamping die for stamping to obtain a preformed contact; i: post-processing, removing burrs, removing oil and removing bubbles from the obtained preformed contact through a deburring device, a degreasing machine and a debubbling machine, respectively, to obtain the silver oxide tin oxide indium oxide electrical contact; The device comprises a frame (1) and a motor (2); the motor (2) is arranged on the top surface of the frame (1); and the bottom surface of the motor (2) is key-connected to a movable block (3); a reciprocating screw (4) is arranged inside one end of the movable block (3); a first deburring mechanism (5) is sleeved on the surface of the reciprocating screw (4); and a planetary gear (6) is connected to the lower end shaft of the reciprocating screw (4); and a connecting wire (7) is fixed to the top end of the first deburring mechanism (5). The top of the movable block (3) is fixed with a support rod (8), and the surface of the support rod (8) is respectively sleeved with a second deburring mechanism (9) and a return spring (10), one end of the planetary gear (6) is meshed with a sun gear (11), and the sun gear (11) is rotatably connected to the lower inner wall of the frame (1) through an axis, the top surface of the sun gear (11) is provided with a rocker (12), and the other end of the rocker (12) is connected to a connecting wheel (13), the top surface of the connecting wheel (13) is keyed to a connecting shaft (14), and the surface of one end of the connecting shaft (14) extending into the interior of the fixed block (15) is sleeved with a transmission device (16), and the top of the fixed block (15) is fixedly connected to the upper inner wall of the frame (1), the other end of the transmission device (16) is connected to a first support shaft (17), and the surface of the first support shaft (17) is sleeved with a driving gear (18), one end of the driving gear (18) is meshed with A driven gear (19) is connected, and the center key of the driven gear (19) is connected to a second support shaft (20), one end of the second support shaft (20) extending into the interior of the clamping block (21) is meshedly connected to a belt (22), and a protrusion (23) is provided on the surface of the belt (22), one end of the clamping block (21) is rotatably connected to the top surface of the fixed block (15) through a limiting shaft (24), and a spiral spring (25) is sleeved on the surface of the limiting shaft (24).

2. The deburring device according to claim 1, characterized in that: The movable block (3) has an "L"-shaped structure when viewed from the front, and the first deburring mechanism (5) forms a sliding structure with the movable block (3) through the reciprocating screw rod (4), and the second deburring mechanism (9) forms a telescopic structure with the movable block (3) through the return spring (10).

3. The deburring device according to claim 2, characterized in that: The first deburring mechanism (5) comprises a fixed rod (501), a coil spring (502), a limit block (503), a connecting rod (504) and a scraper (505); the fixed rod (501) is provided with a coil spring (502) inside, and one end of the coil spring (502) is connected to the limit block (503); a connecting rod (504) is integrally installed on one side of the limit block (503); and one end of the connecting rod (504) extending outside the fixed rod (501) is connected to the scraper (505); the internal structure of the first deburring mechanism (5) is consistent with the internal structure of the second deburring mechanism (9).

4. The deburring device according to claim 3, characterized in that: The connecting wheel (13) forms a linkage structure with the sun gear (11) via a rocker (12), and the connecting wheel (13) is inclined when viewed from above.

5. The deburring device according to claim 4, characterized in that: The driven gear (19) is symmetrically distributed about the transverse center line of the driving gear (18), and the diameter of the driving gear (18) is larger than the diameter of the driven gear (19).

6. The deburring device according to claim 5, characterized in that: The clamping blocks (21) are arc-shaped when viewed from above, and are symmetrically distributed about the longitudinal center line of the fixed block (15). Slots are formed between the clamping blocks (21), and the clamping blocks (21) form a rotating structure with the fixed block (15) through the spiral spring (25).

7. The deburring device according to claim 6, characterized in that: The protrusions (23) are made of elastic rubber material, and the protrusions (23) are distributed at equal angles on the surface of the belt (22).

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