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CN-121972919-A - Efficient automatic processing method and equipment for bit leg of roller bit

CN121972919ACN 121972919 ACN121972919 ACN 121972919ACN-121972919-A

Abstract

The application relates to a high-efficiency automatic processing method and equipment for bit legs of a roller bit, which relate to the technical field of automatic processing and comprise the steps of placing a product at a preset rough processing station and collecting image information of the product; the method comprises the steps of determining a product placement angle under laser auxiliary calibration based on product image information by a preset angle positioning method, adjusting the angle position of a product according to the product placement angle to ensure that the angle of an inclined surface of the product reaches a preset processing angle state, controlling a preset pressing mechanism to press the product after the angle position adjustment is completed, analyzing and determining a rough milling scheme on the inclined surface of the product, controlling two milling machine equipment to synchronously rough mill inclined surfaces on two sides of the product according to the rough milling scheme, determining the residual finish milling amount based on the rough milling scheme and the preset reference product size, and carrying out secondary synchronous finish milling on the inclined surfaces on two sides of the product according to the finish milling amount. The application has the effect of improving the production efficiency and quality of the product.

Inventors

  • LIN YUFU
  • SHEN ZHIQIANG
  • LIN HAONAN

Assignees

  • 浙江东浩重工科技有限公司

Dates

Publication Date
20260505
Application Date
20260408

Claims (10)

  1. 1. The efficient automatic processing method for the bit leg of the roller bit is characterized by comprising the following steps of: Placing the product in a preset rough machining station (5) and collecting product image information; determining a product placement angle under laser auxiliary calibration by a preset angle positioning method based on product image information; The angle position of the product is adjusted according to the product placement angle so as to ensure that the angle of the inclined surface (13) of the product reaches a preset processing angle state; After the angle position is adjusted, a preset pressing mechanism (73) is controlled to press the product, and the inclined surface (13) of the product is analyzed to determine a rough milling scheme; Controlling two milling machine equipment (3) to synchronously rough-mill inclined surfaces (13) on two sides of a product according to a rough milling scheme; Determining the residual finish milling amount based on the rough milling scheme and a preset reference product size; and controlling two milling machine equipment (3) according to the finish milling machining amount to perform secondary synchronous finish milling on inclined surfaces (13) on two sides of the product.
  2. 2. The efficient and automatic processing method for bit legs of a roller cone drill bit according to claim 1, wherein the angular positioning method comprises the following steps: identifying the characteristics of the product journal from the product image information, and analyzing the characteristics of the product journal to obtain the end face and the center point of the end face of the product journal; Irradiating the product with laser beams from a preset reference azimuth, forming spot features at the center point of the end face, and collecting spot feature images; analyzing the light spot characteristic image to extract a light spot stretching contour when the light spot characteristic is stretched due to the product placement inclination; determining a light spot long-diameter stretching distance and a light spot long-diameter stretching direction based on preset perfect circle light spot characteristics and light spot stretching contours; And determining the product placement angle by combining the long-diameter stretching distance of the light spots, the long-diameter stretching direction of the light spots and the reference azimuth.
  3. 3. The efficient and automatic processing method for bit legs of a roller cone drill bit according to claim 2, further comprising: Identifying the end face of the product journal from the product image information to determine whether the end face of the product journal is a plane; when the end face of the product journal is not a plane, three-dimensional data information of the product journal (12) is collected; establishing a simulated tangent plane tangent to the end surface center point based on the end surface center point, and establishing a three-dimensional space coordinate system by taking the end surface center point as an origin; determining a contour point coordinate set on the light spot stretching contour from a three-dimensional space coordinate system according to the three-dimensional data information; mapping the contour point coordinate set on the simulated tangential plane based on the reference azimuth to obtain a mapped light spot contour; The mapped spot profile is taken as the new spot stretching profile.
  4. 4. The efficient and automatic processing method for bit legs of a roller cone drill bit according to claim 3, further comprising: Based on the three-dimensional data information and the flare stretching profile simulation, the end face of the product journal is flattened to the accommodating flattening amount required by completely accommodating the flare stretching profile; determining the required machining quantity of the end face of the journal based on the three-dimensional data information and the reference product size; when the accommodating flattening amount is not more than the machining amount required by the end face of the journal, a preset polishing device is controlled to polish the end face of the journal (12) according to the flattening amount so as to form a plane on the end face of the journal (12); when the accommodating flattening amount is larger than the machining amount required by the end face of the journal, matching the reference flattening amount according to the machining amount required by the end face of the journal; The end face of the journal (12) is polished according to the reference flattening amount to form a reference plane at the end face center point of the end face of the journal (12).
  5. 5. The efficient and automatic processing method for bit legs of a roller cone drill bit according to claim 2, wherein the angular position adjusting method comprises the steps of: generating a rotation adjusting angle based on the product placing angle; pressing a preset angle correcting mechanism (9) against inclined surfaces (13) on two sides of a product, and rotating the product according to a rotation adjusting angle; controlling a laser beam to irradiate a preset target position, and collecting an end face image of the shaft neck in real time; when the light spot characteristics appear in the journal end face image, judging whether the light spot characteristics are positioned at the center point of the end face or not; If the angle is positioned at the center point of the end face, the angle position adjustment is completed.
  6. 6. The method for efficiently and automatically machining a bit leg of a roller cone drill bit according to claim 1, wherein the method for determining the rough milling scheme comprises the steps of: acquiring inclined plane three-dimensional data of a product inclined plane (13); identifying a first low point and a second low point of the inclined surface (13) on both sides relative to the surface of the inclined surface (13) from the three-dimensional data of the inclined surface; taking a depth small value from the first low point and the second low point as a first stroke of the synchronous milling processing of the two-side milling machine equipment (3) in the first stage; taking a depth large value from the first low point and the second low point as a second stroke of a second stage; Defining large depth values in the first low point and the second low point as preliminary milling end points; Determining a third stroke based on the reference product size, the preliminary milling end point and a preset finish machining reserved quantity; And combining the first stroke, the second stroke and the third stroke to obtain a rough milling scheme.
  7. 7. A roller bit leg efficient automatic machining device controlled by adopting the roller bit leg efficient automatic machining method according to any one of claims 1 to 6, and is characterized by comprising a conveying rail (2) which conveys along a machining direction and is provided with a rough machining station (5) and a finish machining station (6), milling machine equipment (3) which is arranged on two sides of the conveying rail (2) and is used for milling inclined surfaces (13) of products on the conveying rail (2), and punching equipment (4) which is used for punching on the inclined surfaces (13) of the products, wherein the milling machine equipment (3) comprises a milling head (31), the punching equipment (4) comprises a punching bit (41), and the milling head (31) and the punching bit (41) are far away from or close to the products and always keep vertical to the inclined surfaces (13) of the products when in operation; the rough machining station (5) is provided with a first fixing device (7) for fixing a product for primary machining, and the finishing station (6) is provided with a second fixing device (8) for fixing the product for secondary machining.
  8. 8. The efficient automatic processing equipment for bit legs of the roller bit according to claim 7, wherein the first fixing device (7) comprises a bottom supporting seat (71) supported on the outer wall of the product from bottom to top, a limiting seat (72) for limiting and mounting the shaft neck (12) of the product, and a pressing mechanism (73) for pressing the inner wall of the product; The pressing mechanism (73) comprises a driving seat (731), a sliding block (732) horizontally arranged on the driving seat (731) in a moving mode and a driving unit (733) driving the sliding block (732) to horizontally move, wherein the sliding block (732) is provided with a pressing protruding part (734), and the pressing protruding part (734) horizontally moves and is pressed on the inner wall of a product after the product is arranged on the bottom supporting seat (71).
  9. 9. The efficient automatic processing equipment for the bit leg of the roller bit according to claim 8, wherein an angle correcting mechanism (9) for adjusting the installation angle of a product on the rough machining station (5) is arranged on one side of the rough machining station (5), the angle correcting mechanism (9) comprises an adjusting head (91) installed above the rough machining station (5) in a lifting mode and an adjusting driving mechanism (92) for driving the adjusting head (91) to lift, and the adjusting head (91) is provided with an adjusting groove (94) matched with inclined surfaces (13) on two sides of the product.
  10. 10. The efficient automatic processing equipment for bit legs of roller bits according to claim 7, wherein the second fixing device (8) comprises a first supporting piece (81) for supporting one side of the outer wall of the product, a second supporting piece (82) for supporting the other end of the outer wall of the product, a clamping piece (83) matched with the first supporting piece (81) for clamping a shaft neck (12) of the product, and a quick pressing assembly (84) matched with the second supporting piece (82) and pressed on the inner wall of the product from top to bottom.

Description

Efficient automatic processing method and equipment for bit leg of roller bit Technical Field The invention relates to the field of automatic processing, in particular to a high-efficiency automatic processing method and equipment for bit legs of a roller bit. Background The cone bit is a core rock breaking tool in the fields of petroleum drilling, geological exploration, mining and the like, and the bit leg is used as a key bearing and transmission part to directly determine the service life, drilling efficiency and underground reliability of the bit. The bit leg is a complex special-shaped forged steel/cast steel piece, integrates multiple characteristic structures such as a shaft neck, a bit back, a slurry flow channel, a sealing groove, a positioning hole, a wear-resistant surfacing area and the like, and the processing needs to meet the severe requirements of high precision, high hardness and high wear resistance. The existing leg processing line mainly uses single-machine manual operation, and the transfer between working procedures, feeding and discharging of workpieces, parameter adjustment and quality detection are all finished manually, so that the consistency of manual operation is poor, the problems of procedure leakage, parameter error, clamping deviation and the like are easy to occur, and the conditions of low production efficiency and low quality of products are further caused. Disclosure of Invention In order to improve the production efficiency and quality of products, the invention provides a high-efficiency automatic processing method and equipment for bit legs of a roller bit. In a first aspect, the invention provides a high-efficiency automatic processing device for bit legs of a roller bit, which adopts the following technical scheme: a high-efficiency automatic processing method for bit legs of a roller bit comprises the following steps: Placing the product in a preset rough machining station, and collecting product image information; determining a product placement angle under laser auxiliary calibration by a preset angle positioning method based on product image information; the angle position of the product is adjusted according to the product placement angle so as to ensure that the angle of the inclined surface of the product reaches a preset processing angle state; after the angle position adjustment is completed, a preset pressing mechanism is controlled to press the product, and the inclined surface of the product is analyzed to determine a rough milling scheme; controlling two milling machine equipment to synchronously rough mill inclined surfaces on two sides of a product according to a rough milling scheme; Determining the residual finish milling amount based on the rough milling scheme and a preset reference product size; and controlling two milling machine equipment according to the finish milling machining quantity to perform secondary synchronous finish milling on inclined surfaces on two sides of the product. Through adopting above-mentioned technical scheme, when placing the product of waiting to process in rough machining station, the system carries out the fine adjustment to the angle of putting of product for the product just carries out the accurate positioning in the initial first step of processing, avoids influencing follow-up machining precision because of the product is put inaccurately. After the positioning is finished, the system controls the two milling machine devices to simultaneously process the inclined surfaces of the product from the two sides of the product, so that the processing efficiency is improved, the two sides are synchronously processed, and the stress on the two sides in the processing process of the product is uniform. Optionally, the angular positioning method includes: identifying the characteristics of the product journal from the product image information, and analyzing the characteristics of the product journal to obtain the end face and the center point of the end face of the product journal; Irradiating the product with laser beams from a preset reference azimuth, forming spot features at the center point of the end face, and collecting spot feature images; analyzing the light spot characteristic image to extract a light spot stretching contour when the light spot characteristic is stretched due to the product placement inclination; determining a light spot long-diameter stretching distance and a light spot long-diameter stretching direction based on preset perfect circle light spot characteristics and light spot stretching contours; And determining the product placement angle by combining the long-diameter stretching distance of the light spots, the long-diameter stretching direction of the light spots and the reference azimuth. By adopting the technical scheme, because the rough blank shapes of the products are different, the definition difficulty is high directly according to the shapes of the products, the center point of the