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CN-117680772-B - Automatic tool clamp for processing agricultural machinery gear

CN117680772BCN 117680772 BCN117680772 BCN 117680772BCN-117680772-B

Abstract

The invention relates to the technical field of clamps, in particular to an automatic tool clamp for machining an agricultural machine gear, which comprises a rotating shaft, a shell, a workpiece and a gear hobbing, wherein the rotating shaft is arranged on a speed reducing motor and is in sliding connection with the bottom of the shell, the shell is arranged above the rotating shaft, the workpiece is arranged above the shell, one side of the workpiece is meshed with the gear hobbing, the automatic tool clamp is characterized by further comprising a clamping mechanism, the bottom of the clamping mechanism is provided with the rotating shaft and is arranged in the shell, the top of the clamping mechanism is connected with the workpiece, the clamping mechanism drives an eccentric pressing rod to rotate through a driving wheel meshed with the gear, the pressing rod drives the pressing rod to rotate outwards along the center of the rotating shaft, so that the workpiece is clamped, the relative position between the driving wheels is unchanged after the workpiece is clamped, the driving wheel rotates around the rotating shaft, and the pressing rod drives the clamping mechanism to rotate, so that the clamping mechanism drives the workpiece to rotate along with the rotation.

Inventors

  • WANG WENLIANG
  • YAN JIANRONG
  • HONG JUN
  • PAN JING
  • Luo Binxiao

Assignees

  • 温岭市明华齿轮有限公司

Dates

Publication Date
20260505
Application Date
20231226

Claims (9)

  1. 1. The automatic tool clamp for processing the agricultural machine gear comprises a rotating shaft (1), a shell (2), a workpiece (3) and a gear hobbing (4), wherein the rotating shaft (1) is arranged on a speed reducing motor and is in sliding connection with the bottom of the shell (2), the shell (2) is arranged above the rotating shaft (1), the workpiece (3) is arranged above the shell (2) and one side of the workpiece is meshed with the gear hobbing (4), and the automatic tool clamp is characterized by further comprising a clamping mechanism (5), the rotating shaft (1) is arranged at the bottom of the clamping mechanism (5) and is arranged in the shell (2), the top of the clamping mechanism (5) is connected with the workpiece (3), the clamping mechanism (5) drives a driving wheel (52) to reversely rotate through rotation of the rotating shaft (1), the rotation of the driving wheel (52) drives a pressing rod (53) to rotate around the center of the driving wheel (52), and an eccentric cam (531) of the pressing rod (53) drives a pushing rod (57) to rotate around the center of the driving wheel (52) outwards along the center of the rotating shaft (1) to push the driving wheel (3); The clamping mechanism (5) comprises a chassis (51), a driving wheel (52), a pressing rod (53), a limiting plate (54), a fixing plate (55), a separating plate (56), a push rod (57), a top cover (58) and a clamping wheel (59), wherein the chassis (51) is arranged on a rotating shaft (1), the driving wheel (52) is arranged on the chassis (51) in a sliding manner and meshed with a gear on the rotating shaft (1), the bottom surface of the pressing rod (53) is arranged above the driving wheel (52), the limiting plate (54) is penetrated by the pressing rod (53) and is positioned above the driving wheel (52), the pressing rod (53) is in sliding connection with the limiting plate (54) along the half circumference of an axis, the fixing plate (55) is arranged above the limiting plate (54) through a bearing and is in sliding connection with the pressing rod (53), the separating plate (56) is arranged inside the fixing plate (55) and is in sliding connection with the top of the pressing rod (53), the push rod (57) is arranged above the pressing rod (53) and penetrates through the top cover (58), the top cover (58) is arranged above the housing (2) and is arranged on the clamping wheel (59) in a position opposite to the clamping wheel (59), the clamping wheel (59) is in sliding connection with the workpiece (3).
  2. 2. The automatic tooling fixture for processing the agricultural machinery gear according to claim 1, wherein a meshing block (521) is arranged above the driving wheel (52), a plurality of right-angled triangular protrusions are arranged above the meshing block (521) in a circumferential array, and the direction of the overall inclined plane of the triangular protrusions is opposite to the rotating direction of the rotating shaft (1).
  3. 3. The automatic tool clamp for processing the agricultural machinery gear according to claim 2, wherein the lower bottom surface of the pressing rod (53) is connected with the upper end surface in front of the cam (531), the lower part of the rear end of the cam (531) is provided with a groove, the inner wall of the groove is meshed with the outer surface of the meshing block (521), the inner circumference array of the groove is provided with a pushing block (532), the whole inclination direction of the pushing block (532) is the same as the rotation direction of the rotating shaft (1), the upper top surface of the pressing rod (53) is provided with a lifting plate (533), and the lower bottom surface of the lifting plate (533) is in sliding connection with the upper end surface of the separating plate (56).
  4. 4. The automatic tool clamp for processing the agricultural machinery gear according to claim 3, wherein a plurality of rotating grooves (541) are formed in the circumferential array of the lower end face of the limiting plate (54), sliding grooves (542) are formed in the rotating grooves (541), the sliding grooves (542) are of semicircular structures, two ends of the sliding grooves (542) are located on the same axis of the limiting plate (54), a plurality of connecting rods (543) are mounted on the side face of the limiting plate (54), and bearings are mounted at the tail ends of the connecting rods (543) and are in sliding connection with the inner wall of the housing (2).
  5. 5. The automatic tool clamp for processing the agricultural machinery gear according to claim 4, wherein a plurality of driven grooves (551) are formed in the circumferential array of the end face of the fixed plate (55), the driven grooves (551) are consistent in shape with the sliding grooves (542) and are vertically opposite to each other, a plurality of fixed blocks (552) are arranged in the circumferential array of the upper end face of the outer ring of the fixed plate (55), the height of each fixed block (552) is not lower than that of the corresponding engaging block (521), the overall inclination direction of each fixed block (552) is opposite to the rotation direction of the rotating shaft (1), and the fixed blocks (552) are engaged with the separating plate (56).
  6. 6. The automatic tool clamp for processing the agricultural machinery gear according to claim 5, wherein a plurality of rotary grooves (561) are formed in the circumferential array of the end face of the separating plate (56), the rotary grooves (561) are located above the driven grooves (551), a separating ring (562) is installed on the upper end face of the separating plate (56), the inside of the separating ring (562) is of a cross structure, a plurality of separating grooves (563) are formed in the circumferential array of the end face of the outer side of the separating ring (562), the separating grooves (563) are meshed with the fixed blocks (552), and a plurality of rotary rods (564) are installed in the circumferential array of the outer side of the separating ring (562).
  7. 7. The automatic tool clamp for machining gears of agricultural machinery according to claim 6, wherein a drop-shaped rotating plate (571) is arranged above the push rod (57), a supporting rod (572) is arranged at the rear end of the rotating plate (571), and a round extrusion block (573) is arranged above the supporting rod (572).
  8. 8. The automatic tooling fixture for processing the agricultural machinery gear according to claim 7, wherein the top cover (58) is of a truncated cone-shaped structure, a circular through hole is formed in the upper end face of the top cover (58), and a plurality of sliding grooves (581) are formed in the top cover (58) in an outward rotating mode along the central through hole.
  9. 9. The automatic tool clamp for machining the agricultural machinery gear according to claim 8, wherein the clamping wheels (59) are made of rubber, the upper part and the lower part of the clamping wheels are respectively provided with one clamping wheel (59), the lower clamping wheels (59) are of a semicircular structure, the distance between the clamping wheels (59) is smaller than the width of the workpiece (3), and the clamping wheels (59) are arranged on the shell (2) through the connecting plates (591).

Description

Automatic tool clamp for processing agricultural machinery gear Technical Field The invention relates to the technical field of clamps, in particular to an automatic tool clamp for machining an agricultural gear. Background With the promotion of mechanized production, the large number of uses of agricultural machinery are brought into play, the large number of uses of agricultural machinery also causes the demand of gears to increase, but in gear processing, the gear is processed mainly by a generating method, the gear is processed by hobbing in the generating method, the gear of the agricultural machinery is most widely used, the precision requirement of the gear for the agricultural machinery is not high in order to adapt to the maximization of various environments and bearing capacity, but the hardness requirement of the gear is higher than that of other gears, the gear needs to rotate in hobbing, so that the gear can be processed by hobbing for a whole circle, the gear can generate severe vibration in the processing process, the vibration can affect the quality of gear processing, and in severe cases, the gear is scrapped, so that the gear needs to be fixed by using a clamp, the existing clamp is expanded in the middle of the gear in the gear processing process, so that the clamp clamps the gear from the inside of the gear, and the method is convenient and stable. The existing clamp utilizes bolts to expand the inside of the clamp so as to fix the gears, and the gears fixed by utilizing the internal expansion are usually fixed at the circle center of the gears, so that the gears are more easy to loosen when rotating around the circle center, and the gears are staggered. In view of the above, in order to overcome the technical problems, the invention designs an automatic tool clamp for processing the gear of the agricultural machine, which solves the technical problems. Disclosure of Invention The technical aim to be achieved by the invention is that the automatic fixture for processing the agricultural machinery gear clamps the gear by utilizing the expansion of the fixture in the gear, and the fixture is more and more tightly fixed to the gear along with the rotation of the gear, so that the gear has stronger resistance when facing the thrust rotating around the circle center. In order to achieve the technical purpose, the invention provides the following technical scheme: The invention provides an automatic tool clamp for processing an agricultural gear, which comprises a rotating shaft, a shell, a workpiece and a gear hobbing, wherein the rotating shaft is arranged on a driving motor and is in sliding connection with the bottom of the shell, the shell is arranged above the rotating shaft, the workpiece is arranged above the shell, one side of the workpiece is meshed with the gear hobbing, the automatic tool clamp also comprises a clamping mechanism, the rotating shaft is arranged at the bottom of the clamping mechanism and is arranged in the shell, the top of the clamping mechanism is connected with the workpiece, the clamping mechanism drives a driving wheel to reversely rotate through the rotation of the rotating shaft, the rotation of the driving wheel drives a pressing rod to rotate around the center of the driving wheel, and an eccentric cam of the pressing rod drives a pushing rod to rotate around the center of the driving wheel to drive the workpiece to rotate outwards along the center of the rotating shaft. The clamping mechanism comprises a chassis, a driving wheel, a pressing rod, a limiting plate, a fixing plate, a separating plate, a push rod, a top cover and a clamping wheel, wherein the chassis is arranged on a rotating shaft, the circumference array of the driving wheel is slidably arranged on the chassis and meshed with a gear on the rotating shaft, the bottom surface of the pressing rod is arranged above the driving wheel, the limiting plate penetrates through the pressing rod and is positioned above the driving wheel, the pressing rod is slidably connected with the limiting plate in the half circumference of an axis, so that the rotation path of the pressing rod is limited by the limiting plate, the fixing plate is arranged above the limiting plate through a bearing and is slidably connected with the pressing rod, the separating plate is arranged inside the fixing plate and is slidably connected with the top of the pressing rod, the push rod is arranged above the pressing rod and penetrates through the top cover, the top cover is arranged above a shell, the clamping wheel is arranged on the shell and is opposite to the hobbing, one side of a workpiece is extruded when the workpiece is machined, the clamping wheel is positioned above the top cover, and the clamping wheel is slidably connected with the workpiece. The clamping mechanism pushes the push rod to clamp the workpiece through the eccentric compression rod, clamps the workpiece more tightly by utilizing the rotation of the ro