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CN-121973098-A - Frock clamp is used in chamfer sword grinding

CN121973098ACN 121973098 ACN121973098 ACN 121973098ACN-121973098-A

Abstract

The invention relates to the technical field of chamfering tool fixture, in particular to a fixture for grinding a chamfering tool. The technical scheme includes that the device comprises a base and a processing box and is characterized in that a driving groove is formed in the upper end of the base, a driving block is connected in a sliding mode in the driving groove, a sliding table is fixed on the driving block, a heat insulation frame is installed at the central position of the upper end of the sliding table through a square rotating shaft, a partition plate is fixed at the central position of the heat insulation frame, and a heating cavity is formed in the inner side of the partition plate. According to the invention, the tail end of the chamfering tool can be easily inserted into the loading hole after heating by utilizing the principle of thermal expansion and cold contraction, and the purpose of clamping is realized by utilizing shrinkage after cooling, so that the bearing force of the tail end surface of the chamfering tool is uniform, the surface of the chamfering tool cannot be clamped and damaged, the stability of clamping can be improved by utilizing interference fit formed after shrinkage, and the risk of shaking in the processing process and further the reduction of processing precision is avoided.

Inventors

  • ZHAO CHAO
  • DING JIANZHI

Assignees

  • 江苏拓普工具有限公司

Dates

Publication Date
20260505
Application Date
20260323

Claims (10)

  1. 1. The tool clamp for chamfering tool grinding comprises a base (1) and a processing box (2) and is characterized in that a driving groove (11) is formed in the upper end of the base (1), a driving block (12) is connected in the driving groove (11) in a sliding mode, a sliding table (3) is fixed on the driving block (12), a heat insulation frame (4) is installed at the center position of the upper end of the sliding table (3) through a square rotating shaft (32), a partition plate (41) is fixed at the center position of the heat insulation frame (4), a heating cavity is arranged on the inner side of the partition plate (41), a cooling cavity is arranged on the outer side of the partition plate (41), a clamping sleeve (6) is installed between the heating cavity and the cooling cavity in the heat insulation frame (4), a loading hole (61) is formed in the front end of the clamping sleeve (6), and a heating coil (42) is fixed in the heating cavity, and a cooling component (5) is arranged in the cooling cavity.
  2. 2. The fixture for grinding the chamfer cutter according to claim 1, wherein the cooling assembly (5) comprises a water spraying pipe (51), a circulating pump (53) and a connecting hose (54), the circulating pump (53) is fixed at the upper end of the heat insulation frame (4), the water spraying pipe (51) is fixed on the side wall of the upper end of the cooling cavity, the end part of the water spraying pipe is connected with the water outlet of the circulating pump (53), the sliding table (3) is provided with an annular water tank (33), and the connecting hose (54) is arranged between the side wall of the annular water tank (33) and the water inlet of the circulating pump (53).
  3. 3. The fixture for grinding the chamfer cutter according to claim 2, wherein a heat conducting pipe (35) is arranged in the annular water tank (33), a radiator (34) is fixed on the outer side of the sliding table (3), two ends of the heat conducting pipe (35) are arranged on the radiator (34), and a temperature sensor (36) is fixed in the annular water pipe.
  4. 4. The fixture for grinding a chamfer cutter according to claim 2, wherein a drain groove (52) is formed in the bottom of the cooling cavity, and a drain pipe is fixed to the bottom of the drain groove (52) and aligned with the annular water groove (33).
  5. 5. The fixture for grinding the chamfer cutter according to claim 1, wherein the tail end of the heat insulation frame (4) is fixedly provided with a telescopic cylinder (43), the output end of the telescopic cylinder (43) is fixed on the clamping sleeve (6), the partition plate (41) is of an annular structure, the inner diameter size of the partition plate is larger than the outer diameter size of the clamping sleeve (6), and the upper part of the rear side of the heat insulation frame (4) is provided with an exhaust hole (47).
  6. 6. The fixture for grinding the chamfer cutter according to claim 1, wherein a pair of fixed sleeves (44) are fixed at the bottom of the cooling cavity, a pair of movable sleeves (45) are arranged at the top of the cooling cavity, the movable sleeves (45) are in one-to-one correspondence with the fixed sleeves (44), an air cylinder (46) is fixed at the upper end of the heat insulation frame (4) and at a position corresponding to the movable sleeves (45), and the output end of the air cylinder (46) is fixed on the movable sleeves (45).
  7. 7. The fixture for grinding the chamfer cutter according to claim 1, wherein a rotating plate (31) is rotatably connected to the middle position of the upper end of the sliding table (3), a servo motor for driving the rotating plate (31) to rotate is fixed in the sliding table (3), and the bottom of the square rotating shaft (32) is fixed on the rotating plate (31).
  8. 8. The fixture for grinding the chamfering tool, as set forth in claim 1, characterized in that a limiting frame (7) is fixed at the upper end of the base (1) and at a position corresponding to the driving groove (11), a linear groove (71) is formed at the center of the limiting frame (7), a circular groove (72) is formed at the tail end of the linear groove (71) and at a position corresponding to the square rotating shaft (32), a positioning block (73) is fixed at the front end of the limiting frame (7), and a positioning hole matched with the positioning block (73) is formed at the front end of the heat insulation frame (4).
  9. 9. The fixture for grinding the chamfer cutter according to claim 1, wherein a machining box (2) is fixed at the upper end of the base (1) and aligned with the clamping sleeve (6), a grinding wheel (21) is installed in the machining box (2), and a glass cover (22) is fixed on the periphery of the grinding wheel (21).
  10. 10. The fixture for grinding the chamfering tool according to claim 1, wherein the driving groove (11) is rotationally connected with a threaded rod (13), the threaded rod (13) penetrates through the driving block (12) and is in threaded connection with the driving block (12), and a driving motor (14) for driving the threaded rod (13) to rotate is fixed on the outer side of the base (1).

Description

Frock clamp is used in chamfer sword grinding Technical Field The invention relates to the technical field of chamfering tool fixture, in particular to a fixture for grinding a chamfering tool. Background The grinding processing of the chamfering tool is a key link for ensuring the cutting performance, the processing precision and the surface quality of the chamfering tool. The method comprises the steps of manufacturing and regrinding the cutter and also relates to a processing method for chamfering a workpiece by utilizing a grinding principle. After the chamfering tool is used for a long time, the end part of the chamfering tool needs to be ground, the inconvenience in machining caused by passivating the cutting edge can be avoided, in the process, the cutting edge position is required to be attached to the grinding wheel, the purpose of grinding is achieved by high-speed rotation of the grinding wheel, therefore, the chamfering tool is required to be clamped stably, a common clamping device is required to ensure that the clamp clamps the chamfering tool body symmetrically, the mechanical acting force of the clamping device directly contacts with the surface of the chamfering tool, the surface damage is easy to occur, the mechanical clamping is easy to loosen under the condition of high-speed grinding vibration, and the accuracy of grinding is further reduced. Disclosure of Invention The invention aims to provide a tool clamp for grinding a chamfering tool, which aims to solve the problems in the background technology. The heat insulation device comprises a base and a processing box, wherein a driving groove is formed in the upper end of the base, a driving block is connected in the driving groove in a sliding mode, a sliding table is fixed on the driving block, a heat insulation frame is installed at the center position of the upper end of the sliding table through a square rotating shaft, a partition plate is fixed at the center position of the heat insulation frame, a heating cavity is arranged on the inner side of the partition plate, a cooling cavity is arranged on the outer side of the partition plate, a clamping sleeve is arranged in the heat insulation frame and located between the heating cavity and the cooling cavity, a loading hole is formed in the front end of the clamping sleeve, a heating coil is fixed in the heating cavity, and a cooling assembly is arranged in the cooling cavity. Preferably, the cooling assembly comprises a water spray pipe, a circulating pump and a connecting hose, the circulating pump is fixed at the upper end of the heat insulation frame, the water spray pipe is fixed on the side wall of the upper end of the cooling cavity, the end part of the water spray pipe is connected with the water outlet of the circulating pump, an annular water tank is arranged on the sliding table, and the connecting hose is arranged between the side wall of the annular water tank and the water inlet of the circulating pump. Preferably, a heat conduction pipe is arranged in the annular water tank, a radiator is fixed on the outer side of the sliding table, two ends of the heat conduction pipe are arranged on the radiator, and a temperature sensor is fixed in the annular water pipe. Preferably, a water draining groove is formed in the bottom of the cooling cavity, a water draining pipe is fixed at the bottom of the water draining groove, and the water draining pipe is aligned with the annular water tank. Preferably, the tail end of the heat insulation frame is fixedly provided with a telescopic cylinder, the output end of the telescopic cylinder is fixed on the clamping sleeve, the partition plate is of an annular structure, the inner diameter size of the partition plate is larger than the outer diameter size of the clamping sleeve, and the upper part of the rear side of the heat insulation frame is provided with an exhaust hole. Preferably, a pair of fixed sleeves are fixed at the bottom of the cooling cavity, a pair of movable sleeves are mounted at the top of the cooling cavity, the movable sleeves are in one-to-one correspondence with the fixed sleeves, an air cylinder is fixed at the upper end of the heat insulation frame and at the position corresponding to the movable sleeves, and the output end of the air cylinder is fixed on the movable sleeves. Preferably, the middle position of the upper end of the sliding table is rotationally connected with a rotating plate, a servo motor for driving the rotating plate to rotate is fixed in the sliding table, and the bottom of the square rotating shaft is fixed on the rotating plate. Preferably, a limiting frame is fixed at the upper end of the base and corresponds to the driving groove, a linear groove is formed in the center of the limiting frame, a circular groove is formed in the position, corresponding to the square rotating shaft, of the tail end of the linear groove, a positioning block is fixed at the front end of the limiting frame, and a