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CN-122008001-A - Knife sharpening robot

CN122008001ACN 122008001 ACN122008001 ACN 122008001ACN-122008001-A

Abstract

The invention discloses a knife sharpening robot, and relates to the technical field of intelligent robots. The sharpening robot comprises a sharpening mechanism and a grinding in-place detection mechanism, wherein the sharpening mechanism comprises a first motor, a grinding wheel and a fixing assembly, the fixing assembly is used for fixing a cutter, a working face of the grinding wheel is provided with a grinding groove matched with a target grinding angle of the cutter, the grinding groove is arranged towards the fixing assembly, and the first motor is connected with the grinding wheel and used for driving the grinding wheel to rotate so as to grind the cutting edge of the cutter. The grinding in-place detection mechanism is configured to detect whether the cutting edge contacts at the vertex of the included angle with the grinding groove. The sharpening robot ensures that the grinding angles of different edge parts of the same batch of cutters and the same handle are consistent in height, avoids insufficient grinding or excessive grinding caused by personal judgment difference, ensures the uniformity and consistency of the grinding of the edge and improves the grinding precision of the cutters.

Inventors

  • MA ZHAO

Assignees

  • 佛山市威思通电动力系统有限公司

Dates

Publication Date
20260512
Application Date
20260310

Claims (13)

  1. 1. A sharpening robot, comprising: The knife sharpening mechanism (1) comprises a first motor (11), a grinding wheel (12) and a fixing assembly (13), wherein the fixing assembly (13) is used for fixing a cutter (100), a grinding groove (121) matched with a target grinding angle of the cutter (100) is formed in the grinding wheel (12), the grinding groove (121) faces towards the fixing assembly (13), and the first motor (11) is connected with the grinding wheel (12) and used for driving the grinding wheel (12) to rotate so as to grind a cutting edge (1011) of the cutter (100); and a grinding in-place detection mechanism configured to detect whether the blade (1011) is in contact with the grinding groove (121) at an included angle vertex (1211).
  2. 2. The sharpening robot as recited in claim 1, characterized in that the grinding in-place detection mechanism comprises a conductive detection unit (2) and/or an optical detection unit, the detection loop of the conductive detection unit (2) being conductive when the tool (100) contacts both the included angle vertex (1211) and the conductive portion of the fixed assembly (13); The optical detection unit comprises a light source (71) and a light receiver (72) which are oppositely arranged at two sides of an included angle vertex (1211) of the grinding groove (121), and when the cutting edge (1011) moves to the included angle vertex (1211) and shields a light path, the light receiver (72) feeds back a signal of grinding in place.
  3. 3. The sharpening robot as recited in claim 2, characterized in that the conductive detection unit (2) comprises: A first conductive part arranged at the vertex (1211) of the included angle of the grinding groove (121); A second conductive part provided at a contact position between the fixing member (13) and the tool (100); Wherein the detection circuit is conductive when the clamped tool (100) contacts both the first and second conductive portions.
  4. 4. The sharpening robot as recited in claim 1, further comprising a blade position recognition mechanism (3), the blade position recognition mechanism (3) moving with the grinding wheel (12) for recognizing a handle end (10111) position and a tip end (10112) position of the blade (1011).
  5. 5. The sharpening robot as recited in claim 1, wherein the sharpening mechanism (1) further comprises a drive assembly (14), the drive assembly (14) being adapted to drive the sharpening grinding wheel (12) to reciprocate along the extension of the blade (1011) of the tool (100); The driving assembly (14) comprises a second motor (141), a first screw rod (142) and a sliding seat (143), wherein the second motor (141) is connected with the first screw rod (142) and used for driving the first screw rod (142) to rotate, the first screw rod (142) is in transmission connection with the sliding seat (143), and the grinding wheel (12) is connected with the sliding seat (143).
  6. 6. The sharpening robot of claim 5, wherein the sharpening mechanism (1) further comprises: -a bracket (15) for mounting the grinding wheel (12); The telescopic driving assembly (16) is arranged between the sliding seat (143) and the bracket (15) and is used for providing power for telescopic movement of the grinding wheel (12); And the elastic pre-tightening element is arranged between the telescopic driving assembly (16) and the bracket (15) and is used for providing a pre-tightening force continuously pressing the blade (1011) for the grinding wheel (12).
  7. 7. The sharpening robot of claim 6, wherein the telescopic drive assembly (16) comprises a third motor (161), a second screw (162) and a telescopic arm (163), the third motor (161) is connected with the second screw (162) for driving the second screw (162) to rotate, the second screw (162) is in transmission connection with the telescopic arm (163), and the telescopic arm (163) is fixedly connected with the support (15).
  8. 8. The sharpening robot as recited in claim 6, characterized in that the grinding wheel (12) comprises two cone wheels (122) arranged in a butt joint, the butt joint of the two cone wheels (122) forming the grinding groove (121); The two conical wheels (122) are integrally formed or separately arranged.
  9. 9. The sharpening robot as recited in claim 8, characterized in that a connecting shaft (151) is provided on the bracket (15), and two cone wheels (122) are centrally mounted on the connecting shaft (151) through a limiting assembly; The limiting assembly comprises a limiting shaft sleeve (152) and a limiting spring (153), wherein limiting plates (1521) and connecting parts (1522) are respectively arranged at two ends of the limiting shaft sleeve (152), limiting holes (1221) are formed in the butt joint ends of two conical wheels (122), the two conical wheels (122) penetrate through the connecting parts (1522) through the limiting holes (1221) to be matched with the limiting shaft sleeve (152), and the connecting parts (1522) are connected with limiting nuts (1523); And limiting springs (153) are arranged between the limiting plate (1521) and the bracket (15) and between the limiting nut (1523) and the bracket (15).
  10. 10. The sharpening robot as recited in claim 1, wherein the fixed assembly (13) includes a fixed platform (131) and two oppositely disposed clamping plates (132), the clamping plates (132) being movably disposed on the fixed platform (131), the two clamping plates (132) being moved in directions toward each other to clamp the tool (100).
  11. 11. The sharpening robot as recited in claim 1, further comprising a degaussing member (17), the degaussing member (17) being provided to the stationary assembly (13) for demagnetizing the tool (100).
  12. 12. The sharpening robot as recited in claim 1, further comprising a cooling assembly (4), the cooling assembly (4) comprising a spout (41) disposed towards the grinding slot (121), the spout (41) being adapted to spray a cooling liquid towards a grinding area.
  13. 13. The sharpening robot of any one of claims 1-12, further comprising a guard body (5), the sharpening mechanism (1) being disposed within the guard body (5).

Description

Knife sharpening robot Technical Field The invention relates to the technical field of intelligent robots, in particular to a knife sharpening robot. Background The sharpness of the cutter directly determines the usability and efficiency thereof. Traditional professional sharpening equipment structure is complicated, bulky and with high costs, mainly used industry field. In order to meet the maintenance requirements of daily and kitchen cutters, various handheld simple knife sharpeners widely exist on the market. However, these sharpeners have fundamental technical drawbacks while being convenient, and it is difficult to achieve accurate, uniform and efficient grinding results. Specifically, the existing hand-held simple knife sharpener mainly has the following problems that the control of the grinding angle is highly dependent on personal experience and operation stability of a user, so that the grinding angle fluctuates greatly, a standard and consistent cutting edge is difficult to form, and the use requirement of a fine cutter cannot be met. And the termination of the grinding process is completely determined by the subjective experience of the user. The user needs to observe the contact condition of the blade and the grinding stone (or the grinding wheel) by naked eyes or estimate the grinding degree by means of hand feeling, so that the grinding is stopped, the consistency of grinding results is poor, standardization is difficult to realize, even if the user is the same, whether the two sides of the blade are uniformly ground to the preset ideal geometric vertex is difficult to accurately judge, the sharpness is easily influenced due to insufficient grinding, or the cutter is damaged due to excessive grinding, and the service life of the cutter is shortened. Disclosure of Invention The invention aims to provide a knife sharpening robot which is used for realizing automatic grinding of a cutter, accurately controlling the grinding angle of the cutter, monitoring whether a cutting edge is ground in place in real time in the grinding process and improving the grinding precision of the cutter. To achieve the purpose, the invention adopts the following technical scheme: A sharpening robot, comprising: The knife sharpening mechanism comprises a first motor, a grinding wheel and a fixing assembly, wherein the fixing assembly is used for fixing a cutter, a grinding groove matched with a target grinding angle of the cutter is formed in the grinding wheel, the grinding groove faces to the fixing assembly, and the first motor is connected with the grinding wheel and used for driving the grinding wheel to rotate so as to grind the cutting edge of the cutter; And the grinding in-place detection mechanism is configured to detect whether the cutting edge is contacted with the vertex of the included angle of the grinding groove. As an alternative to the sharpening robot, the sharpening detection mechanism includes a conductive detection unit and/or an optical detection unit, the detection loop of the conductive detection unit being turned on when the tool contacts both the vertex of the included angle and the conductive portion of the fixed assembly; the optical detection unit comprises a light source and a light receiver which are oppositely arranged at two sides of the vertex of the included angle of the grinding groove, and when the cutting edge moves to the vertex of the included angle and shields the light path, the light receiver feeds back a signal of grinding in place. As an alternative to the sharpening robot, the conductive detection unit includes: The first conductive part is arranged at the vertex of the included angle of the grinding groove; the second conductive part is arranged at the contact position of the fixing assembly and the cutter; wherein the detection circuit is turned on when the held tool contacts the first conductive portion and the second conductive portion simultaneously. As an alternative of the sharpening robot, the sharpening robot further includes a blade position recognition mechanism, which moves with the grinding wheel and is used for recognizing the position of the handle end and the position of the tip end of the blade. As an alternative of the sharpening robot, the sharpening mechanism further comprises a driving assembly for driving the sharpening grinding wheel to reciprocate along the extending direction of the edge of the cutter; The driving assembly comprises a second motor, a first screw rod and a sliding seat, wherein the second motor is connected with the first screw rod and used for driving the first screw rod to rotate, the first screw rod is in transmission connection with the sliding seat, and the grinding wheel is connected with the sliding seat. As an alternative to the sharpening robot, the sharpening mechanism further includes: the bracket is used for installing the grinding wheel; the telescopic driving assembly is arranged between the sliding seat and the brac