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CN-224209476-U - Key groove milling tool with angular relation between shaft key groove and flat position

CN224209476UCN 224209476 UCN224209476 UCN 224209476UCN-224209476-U

Abstract

The key groove milling tool comprises a V-shaped block, a stop block is arranged at one end of a V-shaped sinking groove of the V-shaped block, a flat positioning block is arranged at the other end of the V-shaped sinking groove, an axial positioning screw is rotatably arranged on the stop block, the axial end face of the axial part is tightly pressed by the axial positioning screw and used for axial positioning of the axial part with different lengths, a flat positioning inclined plane is formed on the upper end face of the flat positioning block, the inclination angle alpha of the flat positioning inclined plane is equal to the included angle between the key groove of the axial part and the flat, the flat positioning inclined plane is in contact with and is in fit with the flat position of the axial part, and a pressing plate is arranged on the V-shaped block and presses the axial part and tightly presses the axial part to the V-shaped block. The utility model solves the technical problem of low processing efficiency of processing the key slot of the shaft type with an angle relation with the flat position by using the triaxial processing center, has simple and compact structure, is economical and practical, is convenient to clamp, reduces the processing difficulty, improves the processing efficiency and has strong universality.

Inventors

  • ZHANG RUIGANG
  • DU MENGQI
  • Zhao Xikong
  • WANG XIAONING

Assignees

  • 陕西渭河工模具有限公司

Dates

Publication Date
20260508
Application Date
20250416

Claims (6)

  1. 1. A key groove milling tool with an angle relation between a shaft key groove and a flat position is characterized by comprising a V-shaped block (5), wherein a stop block (12) is arranged at one end of a V-shaped sinking groove (501) of the V-shaped block (5), a flat position locating block (4) is arranged at the other end of the V-shaped sinking groove, an axial locating screw (10) is rotatably arranged on the stop block (12), the axial end face of the axial locating screw (10) is tightly pressed against the shaft part (6) for axial locating of shaft parts (6) with different lengths, a flat position locating inclined surface (401) is arranged on the upper end face of the flat position locating block (4), the inclination angle alpha of the flat position locating inclined surface (401) is equal to the included angle between a key groove (601) of the shaft part (6) and the flat position (602), the flat position locating inclined surface (401) contacts and is attached to the flat position (602) of the proper shaft part (6), a pressing plate (9) is arranged on the V-shaped block (5), and the pressing plate (9) presses down the shaft part (6) and tightly presses the shaft part (6) to the V-shaped block (5).
  2. 2. The tool as claimed in claim 1, wherein the V-shaped block (5) is provided with two axisymmetric V-shaped sinking grooves (501), the V-shaped sinking grooves (501) are used for installing two shaft parts (6) side by side, and the two shaft parts (6) are pressed by using one pressing plate (9).
  3. 3. The tool as claimed in claim 1 or 2, wherein the pressing plate (9) is fastened with the V-shaped block (5) into a whole through the U-shaped groove (901) by using the pressing plate screw (8) and the gasket (7) to screw the V-shaped block threaded hole (505).
  4. 4. The tool according to claim 1, wherein the stop block (12) is fastened and installed on the top end of the V-shaped block (5) by using a pair of axisymmetric stop block set screws (11), and the axial set screws (10) are installed in the center of the stop block (12).
  5. 5. The tool set forth in claim 1, wherein a block base (502) is arranged at the bottom end of the V-shaped block (5) and is provided with a through base pin hole (503), the base pin hole (503) is concentrically provided with a guide pin (1), the guide pin (1) is concentrically pinned with a positioning block pin hole (402) formed in the flat positioning block (4), a sinking groove (403) is formed at the bottom end of the flat positioning block (4), a spring (3) is arranged between the sinking groove (403) and the upper end surface of the block base (502), the bottom end of the flat positioning block (4) is also provided with a positioning block threaded hole (404), the block base (502) is provided with a step through hole (504), the step through hole (504) is concentrically arranged with the positioning block threaded hole (404), and a positioning block adjusting screw (2) passes through the step through hole (504) and then is screwed with the positioning block threaded hole (404) to adjust the height of the flat positioning block (4).
  6. 6. The tool as set forth in claim 1 or 2, wherein the V-shaped sinking groove (501) is provided with a shoulder sinking groove (5011), and the shoulder sinking groove (5011) is adapted to be accommodated in a shoulder (603) of the shaft part (6) so as to ensure levelness of the shaft part (6).

Description

Key groove milling tool with angular relation between shaft key groove and flat position Technical Field The utility model belongs to the technical field of fixture for milling workpieces, and particularly relates to a fixture for milling key grooves with an angular relationship between shaft key grooves and flat positions. Background In the field of mechanical manufacturing, shaft parts are indispensable important parts in various mechanical equipment, and are widely applied to various industries such as automobiles, aerospace, ships, machine tools and the like. The key slot is used as a key feature on the shaft part and plays an important role in transmitting torque, positioning and guaranteeing connection reliability. The shaft part 6 with the key groove 601 and the flat 602 in a position relation (shown in fig. 1) is generally processed by adopting two methods, namely, 1, processing by using a four-shaft processing center and 2, aligning and processing by installing a dividing head in a three-shaft processing center. In each manufacturing enterprise, the number of four-axis machining centers is small, and most of the four-axis machining centers are three-axis machining centers. But when the triaxial machining center is used for machining, not only the dividing head is required to be installed, but also the cutter is required to be set for each shaft part product, and the machining efficiency is low. In this regard, the following technical solutions are now proposed. Disclosure of utility model The technical problem to be solved by the utility model is to provide a key groove milling tool with an angular relationship between a shaft key groove and a flat position, and the technical problem of low processing efficiency of using a triaxial processing center to process the key groove milling tool with the angular relationship between the shaft key groove and the flat position is solved. The technical scheme includes that the key slot milling tool with the angular relation between the shaft key slot and the flat position is provided with a V-shaped block, one end of a V-shaped sinking groove of the V-shaped block is provided with a stop block, the other end of the V-shaped sinking groove is provided with a flat position locating block, the stop block is rotatably provided with an axial locating screw, the axial locating screw is tightly pressed against the shaft end face of the shaft part for axial locating of the shaft part with different lengths, the upper end face of the flat position locating block is provided with a flat position locating inclined plane, the inclination angle alpha of the flat position locating inclined plane is equal to the included angle between the shaft part key slot and the flat position, the flat position locating inclined plane contacts and is fit with the flat position of the shaft part, and the V-shaped block is provided with a pressing plate which presses the shaft part and tightly presses the shaft part to the V-shaped block. In the technical scheme, the V-shaped block is further provided with two axisymmetric V-shaped sinking grooves, the V-shaped sinking grooves are used for installing two shaft parts side by side, and the two shaft parts are pressed by using one pressing plate. In the technical scheme, the pressing plate is preferably fastened with the V-shaped block into a whole through the U-shaped groove, and the pressing plate screw and the gasket are screwed into the V-shaped block threaded hole. In the technical scheme, the stop block is further fastened and mounted on the top end of the V-shaped block by a pair of axisymmetric stop block set screws, and the axial set screws are mounted at the center of the stop block. In the technical scheme, a block base is preferably arranged at the bottom end of a V-shaped block mounting flat positioning block, a through base pin hole is formed in the block base, a guide pin is concentrically arranged in the base pin hole, a positioning block pin hole is formed in the flat positioning block by concentrically pin-connecting the guide pin, a sinking groove is formed at the bottom end of the flat positioning block, a spring is arranged between the sinking groove and the upper end surface of the block base, a positioning block threaded hole is also formed in the bottom end of the flat positioning block, a step through hole is formed in the block base, the step through hole is concentrically arranged with the positioning block threaded hole, and a positioning block adjusting screw passes through the step through hole and then is screwed into the positioning block threaded hole to adjust the height of the flat positioning block. In the technical scheme, the V-shaped sinking groove is further provided with a shaft shoulder sinking groove, and the shaft shoulder sinking groove is adapted to be accommodated in a shaft shoulder of the shaft part so as to ensure levelness of the shaft part. Compared with the prior art, the utility model has